From 0e87430933cb1a054544d257606fec829d4e4ae8 Mon Sep 17 00:00:00 2001
From: Fedor Isakov <fisakov@gmail.com>
Date: Sat, 24 Oct 2015 17:47:42 +0200
Subject: [PATCH] Rewritten findLub algorithm, testing LUB for heterogenous
 types

---
 .../samplechecker/handle/test/util.mps        | 1448 ++++++++
 .../typesystem2/samplechecker/handle/util.mps | 2914 ++++++++---------
 2 files changed, 2776 insertions(+), 1586 deletions(-)

diff --git a/languages/jetbrains.mps.lang.typesystem2/sandbox/jetbrains.mps.lang.typesystem2.samplechecker.handler.test/models/jetbrains/mps/lang/typesystem2/samplechecker/handle/test/util.mps b/languages/jetbrains.mps.lang.typesystem2/sandbox/jetbrains.mps.lang.typesystem2.samplechecker.handler.test/models/jetbrains/mps/lang/typesystem2/samplechecker/handle/test/util.mps
index 29457d0b..b64d239b 100644
--- a/languages/jetbrains.mps.lang.typesystem2/sandbox/jetbrains.mps.lang.typesystem2.samplechecker.handler.test/models/jetbrains/mps/lang/typesystem2/samplechecker/handle/test/util.mps
+++ b/languages/jetbrains.mps.lang.typesystem2/sandbox/jetbrains.mps.lang.typesystem2.samplechecker.handler.test/models/jetbrains/mps/lang/typesystem2/samplechecker/handle/test/util.mps
@@ -1480,6 +1480,1454 @@
           </node>
         </node>
       </node>
+      <node concept="3s$Bmu" id="3hfdu5cNgqx" role="3s_gse">
+        <property role="3s$Bm0" value="lub_boxed_prim" />
+        <node concept="3cqZAl" id="3hfdu5cNgqy" role="3clF45" />
+        <node concept="3Tm1VV" id="3hfdu5cNgqz" role="1B3o_S" />
+        <node concept="3clFbS" id="3hfdu5cNgq$" role="3clF47">
+          <node concept="3cpWs8" id="3hfdu5cNgq_" role="3cqZAp">
+            <node concept="3cpWsn" id="3hfdu5cNgqA" role="3cpWs9">
+              <property role="TrG5h" value="left" />
+              <node concept="3uibUv" id="3hfdu5cNgqB" role="1tU5fm">
+                <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+              </node>
+              <node concept="1oi1Uc" id="3hfdu5cNgqC" role="33vP2m">
+                <node concept="1oi5ST" id="3hfdu5cNgqD" role="1oi0x0">
+                  <property role="TrG5h" value="list" />
+                  <node concept="KCUsM" id="3hfdu5cNgqE" role="1oi5TL">
+                    <node concept="1oi5ST" id="3hfdu5cNgZy" role="KCVpo">
+                      <property role="TrG5h" value="list" />
+                      <node concept="KCUsM" id="3hfdu5cNgVC" role="1oi5TL">
+                        <node concept="1oi5UN" id="3hfdu5cNgVD" role="KCVpo">
+                          <node concept="1oi5Wm" id="3hfdu5cNgVE" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3hfdu5cNgVF" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3hfdu5cNgVG" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3hfdu5cNgVH" role="1oi5zu">
+                              <property role="1oi5yK" value="Object" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="3hfdu5cNgVI" role="KCVpo">
+                          <node concept="1oi5Wm" id="3hfdu5cNgVJ" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3hfdu5cNgVK" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3hfdu5cNgVL" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3hfdu5cNgVM" role="1oi5zu">
+                              <property role="1oi5yK" value="Comparable" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="3hfdu5cNgVN" role="KCVpo">
+                          <node concept="1oi5Wm" id="3hfdu5cNgVO" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3hfdu5cNgVP" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3hfdu5cNgVQ" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3hfdu5cNgVR" role="1oi5zu">
+                              <property role="1oi5yK" value="Long" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="1oi5ST" id="3hfdu5cNh4V" role="KCVpo">
+                      <property role="TrG5h" value="list" />
+                      <node concept="KCUsM" id="3hfdu5cNgTC" role="1oi5TL">
+                        <node concept="1oi5UN" id="3hfdu5cNgTD" role="KCVpo">
+                          <node concept="1oi5Wm" id="3hfdu5cNgTE" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3hfdu5cNgTF" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3hfdu5cNgTG" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3hfdu5cNgTH" role="1oi5zu">
+                              <property role="1oi5yK" value="Object" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="3hfdu5cNgTI" role="KCVpo">
+                          <node concept="1oi5Wm" id="3hfdu5cNgTJ" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3hfdu5cNgTK" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3hfdu5cNgTL" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3hfdu5cNgTM" role="1oi5zu">
+                              <property role="1oi5yK" value="Serializable" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="3hfdu5cNgTS" role="KCVpo">
+                          <node concept="1oi5Wm" id="3hfdu5cNgTT" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3hfdu5cNgTU" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3hfdu5cNgTV" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3hfdu5cNgTW" role="1oi5zu">
+                              <property role="1oi5yK" value="Long" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="1oi5ST" id="3hfdu5cNgqF" role="KCVpo">
+                      <property role="TrG5h" value="list" />
+                      <node concept="KCUsM" id="3hfdu5cNgqG" role="1oi5TL">
+                        <node concept="1oi5UN" id="3hfdu5cNgqH" role="KCVpo">
+                          <node concept="1oi5Wm" id="3hfdu5cNgqI" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3hfdu5cNgqJ" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3hfdu5cNgqK" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3hfdu5cNgqL" role="1oi5zu">
+                              <property role="1oi5yK" value="Object" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="3hfdu5cNgqM" role="KCVpo">
+                          <node concept="1oi5Wm" id="3hfdu5cNgqN" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3hfdu5cNgqO" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3hfdu5cNgqP" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3hfdu5cNgqQ" role="1oi5zu">
+                              <property role="1oi5yK" value="Serializable" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="3hfdu5cNgqR" role="KCVpo">
+                          <node concept="1oi5Wm" id="3hfdu5cNgqS" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3hfdu5cNgqT" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3hfdu5cNgqU" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3hfdu5cNgqV" role="1oi5zu">
+                              <property role="1oi5yK" value="Number" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="3hfdu5cNgTf" role="KCVpo">
+                          <node concept="1oi5Wm" id="3hfdu5cNgTg" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3hfdu5cNgTh" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3hfdu5cNgTi" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3hfdu5cNgTj" role="1oi5zu">
+                              <property role="1oi5yK" value="Long" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3cpWs8" id="3hfdu5cNgrd" role="3cqZAp">
+            <node concept="3cpWsn" id="3hfdu5cNgre" role="3cpWs9">
+              <property role="TrG5h" value="right" />
+              <node concept="3uibUv" id="3hfdu5cNgrf" role="1tU5fm">
+                <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+              </node>
+              <node concept="1oi1Uc" id="3hfdu5cNgrg" role="33vP2m">
+                <node concept="1oi5ST" id="3hfdu5cNgrh" role="1oi0x0">
+                  <property role="TrG5h" value="list" />
+                  <node concept="KCUsM" id="3hfdu5cNgri" role="1oi5TL">
+                    <node concept="1oi5ST" id="3hfdu5cNhaJ" role="KCVpo">
+                      <property role="TrG5h" value="list" />
+                      <node concept="KCUsM" id="3hfdu5cNhbE" role="1oi5TL">
+                        <node concept="1oi5UN" id="3hfdu5cNhbG" role="KCVpo">
+                          <node concept="1oi5Wm" id="3hfdu5cNhbI" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3hfdu5cNhbM" role="1oi5zu">
+                              <property role="1oi5yK" value="Any" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="3hfdu5cNAgM" role="KCVpo">
+                          <node concept="1oi5Wm" id="3hfdu5cNAgN" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3hfdu5cNAgO" role="1oi5zu">
+                              <property role="1oi5yK" value="DoubleType" />
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+                          </node>
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+                        <node concept="1oi5UN" id="3hfdu5cNAil" role="KCVpo">
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+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3hfdu5cNAin" role="1oi5zu">
+                              <property role="1oi5yK" value="FloatType" />
+                            </node>
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+                            <node concept="1oi5XN" id="3hfdu5cNhbX" role="1oi5zu">
+                              <property role="1oi5yK" value="LongType" />
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+                        <node concept="1oi5UN" id="3hfdu5cNhc4" role="KCVpo">
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+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3hfdu5cNhc6" role="1oi5zu">
+                              <property role="1oi5yK" value="IntegerType" />
+                            </node>
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+                      </node>
+                    </node>
+                    <node concept="1oi5ST" id="3hfdu5cNhgm" role="KCVpo">
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+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3hfdu5cNhgq" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3hfdu5cNhgr" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
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+                        <node concept="1oi5UN" id="3hfdu5cNhgt" role="KCVpo">
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+                            <node concept="1oi5XN" id="3hfdu5cNhgv" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
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+                          <node concept="1oi5Wm" id="3hfdu5cNhgw" role="1ojpOf">
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+                              <property role="1oi5yK" value="Comparable" />
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+                        </node>
+                        <node concept="1oi5UN" id="3hfdu5cNhgy" role="KCVpo">
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+                              <property role="1oi5yK" value="Integer" />
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+                        <node concept="1oi5UN" id="3hfdu5cNhmy" role="KCVpo">
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+                              <property role="1oi5yK" value="ClassifierType" />
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+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3hfdu5cNhj4" role="1oi5zu">
+                              <property role="1oi5yK" value="Integer" />
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+                              <property role="1oi5yK" value="IntegerType" />
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+                <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+              </node>
+              <node concept="1oi1Uc" id="3KV3FXjXcq9" role="33vP2m">
+                <node concept="1oi5ST" id="3KV3FXjXcqa" role="1oi0x0">
+                  <property role="TrG5h" value="list" />
+                  <node concept="KCUsM" id="3KV3FXjXcqb" role="1oi5TL">
+                    <node concept="1oi5ST" id="3KV3FXjXcqk" role="KCVpo">
+                      <property role="TrG5h" value="list" />
+                      <node concept="KCUsM" id="3KV3FXjXcql" role="1oi5TL">
+                        <node concept="1oi5UN" id="3KV3FXjXcqm" role="KCVpo">
+                          <node concept="1oi5Wm" id="3KV3FXjXcqn" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3KV3FXjXcqo" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3KV3FXjXcqp" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3KV3FXjXcqq" role="1oi5zu">
+                              <property role="1oi5yK" value="Object" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="3KV3FXjXcqr" role="KCVpo">
+                          <node concept="1oi5Wm" id="3KV3FXjXcqs" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3KV3FXjXcqt" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3KV3FXjXcqu" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3KV3FXjXcqv" role="1oi5zu">
+                              <property role="1oi5yK" value="CharSequence" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="3KV3FXjXcqw" role="KCVpo">
+                          <node concept="1oi5Wm" id="3KV3FXjXcqx" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3KV3FXjXcqy" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3KV3FXjXcqz" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3KV3FXjXcq$" role="1oi5zu">
+                              <property role="1oi5yK" value="String" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="3KV3FXjXcq_" role="KCVpo">
+                          <node concept="1oi5Wm" id="3KV3FXjXcqA" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3KV3FXjXcqB" role="1oi5zu">
+                              <property role="1oi5yK" value="IntegerType" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="1oi5ST" id="3KV3FXjXcVS" role="KCVpo">
+                      <property role="TrG5h" value="list" />
+                      <node concept="KCUsM" id="3KV3FXjXcVT" role="1oi5TL">
+                        <node concept="1oi5UN" id="3KV3FXjXcVU" role="KCVpo">
+                          <node concept="1oi5Wm" id="3KV3FXjXcVV" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3KV3FXjXcVW" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3KV3FXjXcVX" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3KV3FXjXcVY" role="1oi5zu">
+                              <property role="1oi5yK" value="Object" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="3KV3FXjXcVZ" role="KCVpo">
+                          <node concept="1oi5Wm" id="3KV3FXjXcW0" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3KV3FXjXcW1" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3KV3FXjXcW2" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3KV3FXjXcW3" role="1oi5zu">
+                              <property role="1oi5yK" value="Comparable" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="3KV3FXjXcW4" role="KCVpo">
+                          <node concept="1oi5Wm" id="3KV3FXjXcW5" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3KV3FXjXcW6" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3KV3FXjXcW7" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3KV3FXjXcW8" role="1oi5zu">
+                              <property role="1oi5yK" value="String" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="3KV3FXjXcW9" role="KCVpo">
+                          <node concept="1oi5Wm" id="3KV3FXjXcWa" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3KV3FXjXcWb" role="1oi5zu">
+                              <property role="1oi5yK" value="IntegerType" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="1oi5ST" id="3KV3FXjXcqC" role="KCVpo">
+                      <property role="TrG5h" value="list" />
+                      <node concept="KCUsM" id="3KV3FXjXcqD" role="1oi5TL">
+                        <node concept="1oi5UN" id="3KV3FXjXcqE" role="KCVpo">
+                          <node concept="1oi5Wm" id="3KV3FXjXcqF" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3KV3FXjXcqG" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3KV3FXjXcqH" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3KV3FXjXcqI" role="1oi5zu">
+                              <property role="1oi5yK" value="Object" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="3KV3FXjXcqJ" role="KCVpo">
+                          <node concept="1oi5Wm" id="3KV3FXjXcqK" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3KV3FXjXcqL" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3KV3FXjXcqM" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3KV3FXjXcqN" role="1oi5zu">
+                              <property role="1oi5yK" value="Serializable" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="1oi5UN" id="3KV3FXjXcqO" role="KCVpo">
+                          <node concept="1oi5Wm" id="3KV3FXjXcqP" role="1ojpOf">
+                            <property role="TrG5h" value="concept" />
+                            <node concept="1oi5XN" id="3KV3FXjXcqQ" role="1oi5zu">
+                              <property role="1oi5yK" value="ClassifierType" />
+                            </node>
+                          </node>
+                          <node concept="1oi5Wm" id="3KV3FXjXcqR" role="1ojpOf">
+                            <property role="TrG5h" value="classifier" />
+                            <node concept="1oi5XN" id="3KV3FXjXcqS" role="1oi5zu">
+                              <property role="1oi5yK" value="String" />
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3clFbH" id="3KV3FXjXcr1" role="3cqZAp" />
+          <node concept="3cpWs8" id="3KV3FXjXcr2" role="3cqZAp">
+            <node concept="3cpWsn" id="3KV3FXjXcr3" role="3cpWs9">
+              <property role="TrG5h" value="var" />
+              <node concept="3uibUv" id="3KV3FXjXcr4" role="1tU5fm">
+                <ref role="3uigEE" to="oy3s:4U_yxogAknZ" resolve="AtomLogical" />
+              </node>
+              <node concept="2ShNRf" id="3KV3FXjXcr5" role="33vP2m">
+                <node concept="1pGfFk" id="3KV3FXjXcr6" role="2ShVmc">
+                  <ref role="37wK5l" to="oy3s:6SkxsM$96Z2" resolve="AtomLogical" />
+                  <node concept="Xl_RD" id="3KV3FXjXcr7" role="37wK5m">
+                    <property role="Xl_RC" value="var" />
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3cpWs8" id="3KV3FXjXcr8" role="3cqZAp">
+            <node concept="3cpWsn" id="3KV3FXjXcr9" role="3cpWs9">
+              <property role="TrG5h" value="success" />
+              <node concept="10P_77" id="3KV3FXjXcra" role="1tU5fm" />
+              <node concept="2YIFZM" id="3KV3FXjXcrb" role="33vP2m">
+                <ref role="1Pybhc" to="4r4j:5H6hZahmlon" resolve="LubSolver" />
+                <ref role="37wK5l" to="4r4j:5H6hZahmloU" resolve="findLub" />
+                <node concept="37vLTw" id="3KV3FXjXcrc" role="37wK5m">
+                  <ref role="3cqZAo" node="3KV3FXjXcr3" resolve="var" />
+                </node>
+                <node concept="2ShNRf" id="3KV3FXjXcrd" role="37wK5m">
+                  <node concept="1pGfFk" id="3KV3FXjXcre" role="2ShVmc">
+                    <ref role="37wK5l" to="oy3s:6SkxsM$2Uu7" resolve="AtomLogical" />
+                    <node concept="37vLTw" id="3KV3FXjXcrf" role="37wK5m">
+                      <ref role="3cqZAo" node="3KV3FXjXcpc" resolve="left" />
+                    </node>
+                  </node>
+                </node>
+                <node concept="2ShNRf" id="3KV3FXjXcrg" role="37wK5m">
+                  <node concept="1pGfFk" id="3KV3FXjXcrh" role="2ShVmc">
+                    <ref role="37wK5l" to="oy3s:6SkxsM$2Uu7" resolve="AtomLogical" />
+                    <node concept="37vLTw" id="3KV3FXjXcri" role="37wK5m">
+                      <ref role="3cqZAo" node="3KV3FXjXcq7" resolve="right" />
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3clFbH" id="3KV3FXjXcrj" role="3cqZAp" />
+          <node concept="3vwNmj" id="3KV3FXjXcrk" role="3cqZAp">
+            <node concept="37vLTw" id="3KV3FXjXcrl" role="3vwVQn">
+              <ref role="3cqZAo" node="3KV3FXjXcr9" resolve="success" />
+            </node>
+          </node>
+          <node concept="3vwNmj" id="3KV3FXjXcrm" role="3cqZAp">
+            <node concept="2OqwBi" id="3KV3FXjXcrn" role="3vwVQn">
+              <node concept="37vLTw" id="3KV3FXjXcro" role="2Oq$k0">
+                <ref role="3cqZAo" node="3KV3FXjXcr3" resolve="var" />
+              </node>
+              <node concept="liA8E" id="3KV3FXjXcrp" role="2OqNvi">
+                <ref role="37wK5l" to="oy3s:3HJTsBmC6RD" resolve="isBound" />
+              </node>
+            </node>
+          </node>
+          <node concept="3clFbH" id="3KV3FXjXcrq" role="3cqZAp" />
+          <node concept="3cpWs8" id="3KV3FXjXcrr" role="3cqZAp">
+            <node concept="3cpWsn" id="3KV3FXjXcrs" role="3cpWs9">
+              <property role="TrG5h" value="expect" />
+              <node concept="3uibUv" id="3KV3FXjXcrt" role="1tU5fm">
+                <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+              </node>
+              <node concept="1oi1Uc" id="3KV3FXjXcru" role="33vP2m">
+                <node concept="1oi5ST" id="3KV3FXjXcrv" role="1oi0x0">
+                  <property role="TrG5h" value="list" />
+                  <node concept="KCUsM" id="3KV3FXjXcrw" role="1oi5TL">
+                    <node concept="1oi5UN" id="3KV3FXjZ28E" role="KCVpo">
+                      <node concept="1oi5Wm" id="3KV3FXjZ28F" role="1ojpOf">
+                        <property role="TrG5h" value="concept" />
+                        <node concept="1oi5XN" id="3KV3FXjZ28G" role="1oi5zu">
+                          <property role="1oi5yK" value="ClassifierType" />
+                        </node>
+                      </node>
+                      <node concept="1oi5Wm" id="3KV3FXjZ28H" role="1ojpOf">
+                        <property role="TrG5h" value="classifier" />
+                        <node concept="1oi5XN" id="3KV3FXjZ28I" role="1oi5zu">
+                          <property role="1oi5yK" value="Comparable" />
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="1oi5UN" id="3KV3FXjZ291" role="KCVpo">
+                      <node concept="1oi5Wm" id="3KV3FXjZ292" role="1ojpOf">
+                        <property role="TrG5h" value="concept" />
+                        <node concept="1oi5XN" id="3KV3FXjZ293" role="1oi5zu">
+                          <property role="1oi5yK" value="ClassifierType" />
+                        </node>
+                      </node>
+                      <node concept="1oi5Wm" id="3KV3FXjZ294" role="1ojpOf">
+                        <property role="TrG5h" value="classifier" />
+                        <node concept="1oi5XN" id="3KV3FXjZ295" role="1oi5zu">
+                          <property role="1oi5yK" value="Serializable" />
+                        </node>
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3clFbF" id="3KV3FXjXcr$" role="3cqZAp">
+            <node concept="2OqwBi" id="3KV3FXjXcr_" role="3clFbG">
+              <node concept="37vLTw" id="3KV3FXjXcrA" role="2Oq$k0">
+                <ref role="3cqZAo" node="7t5VLKGALSI" resolve="uni" />
+              </node>
+              <node concept="liA8E" id="3KV3FXjXcrB" role="2OqNvi">
+                <ref role="37wK5l" to="oy3s:4U_yxogCcGI" resolve="tellUni" />
+                <node concept="37vLTw" id="3KV3FXjXcrC" role="37wK5m">
+                  <ref role="3cqZAo" node="3KV3FXjXcrs" resolve="expect" />
+                </node>
+                <node concept="37vLTw" id="3KV3FXjXcrD" role="37wK5m">
+                  <ref role="3cqZAo" node="3KV3FXjXcr3" resolve="var" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
     </node>
   </node>
 </model>
diff --git a/languages/jetbrains.mps.lang.typesystem2/sandbox/jetbrains.mps.lang.typesystem2.samplechecker.handler.util/models/jetbrains/mps/lang/typesystem2/samplechecker/handle/util.mps b/languages/jetbrains.mps.lang.typesystem2/sandbox/jetbrains.mps.lang.typesystem2.samplechecker.handler.util/models/jetbrains/mps/lang/typesystem2/samplechecker/handle/util.mps
index a17f81ce..6a2902b6 100644
--- a/languages/jetbrains.mps.lang.typesystem2/sandbox/jetbrains.mps.lang.typesystem2.samplechecker.handler.util/models/jetbrains/mps/lang/typesystem2/samplechecker/handle/util.mps
+++ b/languages/jetbrains.mps.lang.typesystem2/sandbox/jetbrains.mps.lang.typesystem2.samplechecker.handler.util/models/jetbrains/mps/lang/typesystem2/samplechecker/handle/util.mps
@@ -70,10 +70,6 @@
       <concept id="1070534760951" name="jetbrains.mps.baseLanguage.structure.ArrayType" flags="in" index="10Q1$e">
         <child id="1070534760952" name="componentType" index="10Q1$1" />
       </concept>
-      <concept id="1070534934090" name="jetbrains.mps.baseLanguage.structure.CastExpression" flags="nn" index="10QFUN">
-        <child id="1070534934091" name="type" index="10QFUM" />
-        <child id="1070534934092" name="expression" index="10QFUP" />
-      </concept>
       <concept id="1068390468200" name="jetbrains.mps.baseLanguage.structure.FieldDeclaration" flags="ig" index="312cEg" />
       <concept id="1068390468198" name="jetbrains.mps.baseLanguage.structure.ClassConcept" flags="ig" index="312cEu" />
       <concept id="1068431474542" name="jetbrains.mps.baseLanguage.structure.VariableDeclaration" flags="ng" index="33uBYm">
@@ -89,6 +85,8 @@
         <child id="5680397130376446158" name="type" index="1tU5fm" />
       </concept>
       <concept id="1068580123132" name="jetbrains.mps.baseLanguage.structure.BaseMethodDeclaration" flags="ng" index="3clF44">
+        <property id="4276006055363816570" name="isSynchronized" index="od$2w" />
+        <property id="1181808852946" name="isFinal" index="DiZV1" />
         <child id="1068580123133" name="returnType" index="3clF45" />
         <child id="1068580123134" name="parameter" index="3clF46" />
         <child id="1068580123135" name="body" index="3clF47" />
@@ -103,6 +101,7 @@
         <child id="1082485599094" name="ifFalseStatement" index="9aQIa" />
         <child id="1068580123160" name="condition" index="3clFbw" />
         <child id="1068580123161" name="ifTrue" index="3clFbx" />
+        <child id="1206060520071" name="elsifClauses" index="3eNLev" />
       </concept>
       <concept id="1068580123136" name="jetbrains.mps.baseLanguage.structure.StatementList" flags="sn" stub="5293379017992965193" index="3clFbS">
         <child id="1068581517665" name="statement" index="3cqZAp" />
@@ -122,8 +121,9 @@
       </concept>
       <concept id="1068581242863" name="jetbrains.mps.baseLanguage.structure.LocalVariableDeclaration" flags="nr" index="3cpWsn" />
       <concept id="1068581517677" name="jetbrains.mps.baseLanguage.structure.VoidType" flags="in" index="3cqZAl" />
-      <concept id="1079359253375" name="jetbrains.mps.baseLanguage.structure.ParenthesizedExpression" flags="nn" index="1eOMI4">
-        <child id="1079359253376" name="expression" index="1eOMHV" />
+      <concept id="1206060495898" name="jetbrains.mps.baseLanguage.structure.ElsifClause" flags="ng" index="3eNFk2">
+        <child id="1206060619838" name="condition" index="3eO9$A" />
+        <child id="1206060644605" name="statementList" index="3eOfB_" />
       </concept>
       <concept id="1081506773034" name="jetbrains.mps.baseLanguage.structure.LessThanExpression" flags="nn" index="3eOVzh" />
       <concept id="1081516740877" name="jetbrains.mps.baseLanguage.structure.NotExpression" flags="nn" index="3fqX7Q">
@@ -164,6 +164,9 @@
       <concept id="1178549954367" name="jetbrains.mps.baseLanguage.structure.IVisible" flags="ng" index="1B3ioH">
         <child id="1178549979242" name="visibility" index="1B3o_S" />
       </concept>
+      <concept id="1144226303539" name="jetbrains.mps.baseLanguage.structure.ForeachStatement" flags="nn" index="1DcWWT">
+        <child id="1144226360166" name="iterable" index="1DdaDG" />
+      </concept>
       <concept id="1144230876926" name="jetbrains.mps.baseLanguage.structure.AbstractForStatement" flags="nn" index="1DupvO">
         <child id="1144230900587" name="variable" index="1Duv9x" />
       </concept>
@@ -171,11 +174,6 @@
         <child id="1144231399730" name="condition" index="1Dwp0S" />
         <child id="1144231408325" name="iteration" index="1Dwrff" />
       </concept>
-      <concept id="1163668896201" name="jetbrains.mps.baseLanguage.structure.TernaryOperatorExpression" flags="nn" index="3K4zz7">
-        <child id="1163668914799" name="condition" index="3K4Cdx" />
-        <child id="1163668922816" name="ifTrue" index="3K4E3e" />
-        <child id="1163668934364" name="ifFalse" index="3K4GZi" />
-      </concept>
       <concept id="1082113931046" name="jetbrains.mps.baseLanguage.structure.ContinueStatement" flags="nn" index="3N13vt" />
       <concept id="6329021646629104957" name="jetbrains.mps.baseLanguage.structure.TextCommentPart" flags="nn" index="3SKdUq">
         <property id="6329021646629104958" name="text" index="3SKdUp" />
@@ -192,20 +190,19 @@
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-        <child id="5858074156537516440" name="return" index="x79VK" />
-      </concept>
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-        <reference id="2217234381367530196" name="methodDeclaration" index="VXe0S" />
+      <concept id="2217234381367188008" name="jetbrains.mps.baseLanguage.javadoc.structure.FieldDocReference" flags="ng" index="VUqz4" />
+      <concept id="2217234381367049075" name="jetbrains.mps.baseLanguage.javadoc.structure.CodeInlineDocTag" flags="ng" index="VVOAv">
+        <child id="3106559687488741665" name="line" index="2Xj1qM" />
+      </concept>
+      <concept id="5562345046718956738" name="jetbrains.mps.baseLanguage.javadoc.structure.BaseVariableDocReference" flags="ng" index="YTMYr">
+        <reference id="5562345046718956740" name="declaration" index="YTMYt" />
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       <concept id="8970989240999019145" name="jetbrains.mps.baseLanguage.javadoc.structure.InlineTagCommentLinePart" flags="ng" index="1dT_AA">
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@@ -264,777 +261,169 @@
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+          <node concept="3cpWsn" id="3KV3FXjZHhG" role="3cpWs9">
+            <property role="TrG5h" value="leftVal" />
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+              <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
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+              <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
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-                    <node concept="37vLTw" id="5H6hZahqRGg" role="37vLTJ">
-                      <ref role="3cqZAo" node="5H6hZahmVAN" resolve="nextPathRight" />
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-                        <node concept="37vLTw" id="5H6hZahqRGk" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5H6hZahmQlb" resolve="rightPathIt" />
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-                        <node concept="liA8E" id="5H6hZahqRGl" role="2OqNvi">
-                          <ref role="37wK5l" to="33ny:~Iterator.hasNext():boolean" resolve="hasNext" />
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-                        <node concept="37vLTw" id="5H6hZahqRGn" role="2Oq$k0">
-                          <ref role="3cqZAo" node="5H6hZahmQlb" resolve="rightPathIt" />
-                        </node>
-                        <node concept="liA8E" id="5H6hZahqRGo" role="2OqNvi">
-                          <ref role="37wK5l" to="33ny:~Iterator.next():java.lang.Object" resolve="next" />
-                        </node>
-                      </node>
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-                </node>
-                <node concept="3clFbH" id="5H6hZahow6H" role="3cqZAp" />
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-                <node concept="10Nm6u" id="5H6hZahntTO" role="3uHU7w" />
-                <node concept="37vLTw" id="5H6hZahnsWV" role="3uHU7B">
-                  <ref role="3cqZAo" node="5H6hZahnqqr" resolve="lastMatch" />
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-              </node>
-              <node concept="9aQIb" id="5H6hZahoyNW" role="9aQIa">
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-                    <node concept="3cpWsn" id="5H6hZahoBbL" role="3cpWs9">
-                      <property role="TrG5h" value="compare" />
-                      <node concept="10Oyi0" id="5H6hZahoBbe" role="1tU5fm" />
-                      <node concept="1rXfSq" id="5H6hZahoBbM" role="33vP2m">
-                        <ref role="37wK5l" node="5H6hZahoyat" resolve="compare" />
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-                          <node concept="37vLTw" id="5H6hZahoBbO" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5H6hZahnxrf" resolve="leftPath" />
-                          </node>
-                          <node concept="liA8E" id="5H6hZahoBbP" role="2OqNvi">
-                            <ref role="37wK5l" to="33ny:~List.get(int):java.lang.Object" resolve="get" />
-                            <node concept="3cmrfG" id="5H6hZahoBbQ" role="37wK5m">
-                              <property role="3cmrfH" value="0" />
-                            </node>
-                          </node>
-                        </node>
-                        <node concept="2OqwBi" id="5H6hZahoBbR" role="37wK5m">
-                          <node concept="37vLTw" id="5H6hZahoBbS" role="2Oq$k0">
-                            <ref role="3cqZAo" node="5H6hZahnxrt" resolve="rightPath" />
-                          </node>
-                          <node concept="liA8E" id="5H6hZahoBbT" role="2OqNvi">
-                            <ref role="37wK5l" to="33ny:~List.get(int):java.lang.Object" resolve="get" />
-                            <node concept="3cmrfG" id="5H6hZahoBbU" role="37wK5m">
-                              <property role="3cmrfH" value="0" />
-                            </node>
-                          </node>
-                        </node>
-                      </node>
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-                  <node concept="3clFbJ" id="5H6hZahoBrj" role="3cqZAp">
-                    <node concept="3clFbS" id="5H6hZahoBrl" role="3clFbx">
-                      <node concept="3clFbF" id="5H6hZahoCGC" role="3cqZAp">
-                        <node concept="37vLTI" id="5H6hZahoCGD" role="3clFbG">
-                          <node concept="37vLTw" id="5H6hZahoCGH" role="37vLTJ">
-                            <ref role="3cqZAo" node="5H6hZahmUVF" resolve="nextPathLeft" />
-                          </node>
-                          <node concept="3K4zz7" id="5H6hZahoE0G" role="37vLTx">
-                            <node concept="10Nm6u" id="5H6hZahoE6u" role="3K4GZi" />
-                            <node concept="2OqwBi" id="5H6hZahoDBc" role="3K4Cdx">
-                              <node concept="37vLTw" id="5H6hZahoD$H" role="2Oq$k0">
-                                <ref role="3cqZAo" node="5H6hZahmMWh" resolve="leftPathIt" />
-                              </node>
-                              <node concept="liA8E" id="5H6hZahoDPC" role="2OqNvi">
-                                <ref role="37wK5l" to="33ny:~Iterator.hasNext():boolean" resolve="hasNext" />
-                              </node>
-                            </node>
-                            <node concept="2OqwBi" id="5H6hZahoCGE" role="3K4E3e">
-                              <node concept="37vLTw" id="5H6hZahoCGF" role="2Oq$k0">
-                                <ref role="3cqZAo" node="5H6hZahmMWh" resolve="leftPathIt" />
-                              </node>
-                              <node concept="liA8E" id="5H6hZahoCGG" role="2OqNvi">
-                                <ref role="37wK5l" to="33ny:~Iterator.next():java.lang.Object" resolve="next" />
-                              </node>
-                            </node>
-                          </node>
-                        </node>
-                      </node>
-                      <node concept="3clFbH" id="5H6hZahoCGv" role="3cqZAp" />
-                    </node>
-                    <node concept="3eOVzh" id="5H6hZahoCcf" role="3clFbw">
-                      <node concept="3cmrfG" id="5H6hZahoCcw" role="3uHU7w">
-                        <property role="3cmrfH" value="0" />
-                      </node>
-                      <node concept="37vLTw" id="5H6hZahoBz6" role="3uHU7B">
-                        <ref role="3cqZAo" node="5H6hZahoBbL" resolve="compare" />
-                      </node>
-                    </node>
-                    <node concept="9aQIb" id="5H6hZahoD6$" role="9aQIa">
-                      <node concept="3clFbS" id="5H6hZahoD6_" role="9aQI4">
-                        <node concept="3clFbF" id="5H6hZahoCJA" role="3cqZAp">
-                          <node concept="37vLTI" id="5H6hZahoCJB" role="3clFbG">
-                            <node concept="37vLTw" id="5H6hZahoCJF" role="37vLTJ">
-                              <ref role="3cqZAo" node="5H6hZahmVAN" resolve="nextPathRight" />
-                            </node>
-                            <node concept="3K4zz7" id="5H6hZahoEM1" role="37vLTx">
-                              <node concept="10Nm6u" id="5H6hZahoERM" role="3K4GZi" />
-                              <node concept="2OqwBi" id="5H6hZahoEoy" role="3K4Cdx">
-                                <node concept="37vLTw" id="5H6hZahoElP" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5H6hZahmQlb" resolve="rightPathIt" />
-                                </node>
-                                <node concept="liA8E" id="5H6hZahoEAX" role="2OqNvi">
-                                  <ref role="37wK5l" to="33ny:~Iterator.hasNext():boolean" resolve="hasNext" />
-                                </node>
-                              </node>
-                              <node concept="2OqwBi" id="5H6hZahoCJC" role="3K4E3e">
-                                <node concept="37vLTw" id="5H6hZahoCJD" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="5H6hZahmQlb" resolve="rightPathIt" />
-                                </node>
-                                <node concept="liA8E" id="5H6hZahoCJE" role="2OqNvi">
-                                  <ref role="37wK5l" to="33ny:~Iterator.next():java.lang.Object" resolve="next" />
-                                </node>
-                              </node>
-                            </node>
-                          </node>
-                        </node>
-                      </node>
-                    </node>
-                  </node>
-                </node>
-              </node>
-            </node>
-          </node>
-          <node concept="1Wc70l" id="5H6hZahopqN" role="2$JKZa">
-            <node concept="3y3z36" id="5H6hZahoqlA" role="3uHU7w">
-              <node concept="10Nm6u" id="5H6hZahoqmB" role="3uHU7w" />
-              <node concept="37vLTw" id="5H6hZahoqcR" role="3uHU7B">
-                <ref role="3cqZAo" node="5H6hZahmVAN" resolve="nextPathRight" />
-              </node>
-            </node>
-            <node concept="3y3z36" id="5H6hZahooCT" role="3uHU7B">
-              <node concept="37vLTw" id="5H6hZahonJR" role="3uHU7B">
-                <ref role="3cqZAo" node="5H6hZahmUVF" resolve="nextPathLeft" />
-              </node>
-              <node concept="10Nm6u" id="5H6hZahopq5" role="3uHU7w" />
-            </node>
-          </node>
-        </node>
-        <node concept="3clFbH" id="5H6hZahnr_9" role="3cqZAp" />
-        <node concept="3clFbJ" id="5H6hZahoReK" role="3cqZAp">
-          <node concept="2OqwBi" id="5H6hZahoW49" role="3clFbw">
-            <node concept="37vLTw" id="5H6hZahoW4a" role="2Oq$k0">
-              <ref role="3cqZAo" node="5H6hZahnYQX" resolve="resultList" />
-            </node>
-            <node concept="liA8E" id="5H6hZahoW4b" role="2OqNvi">
+            <node concept="liA8E" id="3KV3FXjZMUC" role="2OqNvi">
               <ref role="37wK5l" to="33ny:~List.isEmpty():boolean" resolve="isEmpty" />
             </node>
           </node>
-          <node concept="3clFbS" id="5H6hZahsjFL" role="3clFbx">
-            <node concept="3cpWs6" id="4JRKVCv29eV" role="3cqZAp">
-              <node concept="3clFbT" id="4JRKVCv2bHD" role="3cqZAk">
+          <node concept="3clFbS" id="3KV3FXjZMUD" role="3clFbx">
+            <node concept="3cpWs6" id="3KV3FXjZMUE" role="3cqZAp">
+              <node concept="3clFbT" id="3KV3FXjZMUF" role="3cqZAk">
                 <property role="3clFbU" value="false" />
               </node>
             </node>
+            <node concept="3clFbH" id="3KV3FXk0uiD" role="3cqZAp" />
           </node>
-        </node>
-        <node concept="3clFbH" id="5H6hZahoYYv" role="3cqZAp" />
-        <node concept="3clFbF" id="5H6hZahpbYO" role="3cqZAp">
-          <node concept="2OqwBi" id="5H6hZahpbZD" role="3clFbG">
-            <node concept="37vLTw" id="4xBopTzt_1g" role="2Oq$k0">
-              <ref role="3cqZAo" node="4xBopTztvtj" resolve="computingSession" />
-            </node>
-            <node concept="liA8E" id="5H6hZahpc3J" role="2OqNvi">
-              <ref role="37wK5l" to="bspi:4xBopTznPKO" resolve="tell" />
-              <node concept="10M0yZ" id="4xBopTztd7s" role="37wK5m">
-                <ref role="1PxDUh" to="oy3s:3HJTsBn4kk_" resolve="EqualsBuiltinConstraint" />
-                <ref role="3cqZAo" to="oy3s:3HJTsBn4kQs" resolve="INSTANCE" />
-              </node>
-              <node concept="37vLTw" id="5H6hZahpcMG" role="37wK5m">
-                <ref role="3cqZAo" node="5H6hZahmlpn" resolve="result" />
-              </node>
-              <node concept="2ShNRf" id="5H6hZahpnpU" role="37wK5m">
-                <node concept="1pGfFk" id="5H6hZahpnJ_" role="2ShVmc">
-                  <ref role="37wK5l" to="oy3s:6SkxsM$2Uu7" resolve="AtomLogical" />
-                  <node concept="1rXfSq" id="5H6hZahpnTD" role="37wK5m">
-                    <ref role="37wK5l" node="5H6hZahoMly" resolve="buildLub" />
-                    <node concept="37vLTw" id="5H6hZahpo7W" role="37wK5m">
-                      <ref role="3cqZAo" node="5H6hZahnYQX" resolve="resultList" />
+          <node concept="9aQIb" id="3KV3FXk0tjw" role="9aQIa">
+            <node concept="3clFbS" id="3KV3FXk0tjx" role="9aQI4">
+              <node concept="3clFbF" id="3KV3FXjZMUG" role="3cqZAp">
+                <node concept="2OqwBi" id="3KV3FXjZMUH" role="3clFbG">
+                  <node concept="37vLTw" id="3KV3FXk0rYO" role="2Oq$k0">
+                    <ref role="3cqZAo" node="3KV3FXk0r_f" resolve="computingSession" />
+                  </node>
+                  <node concept="liA8E" id="3KV3FXjZMUJ" role="2OqNvi">
+                    <ref role="37wK5l" to="bspi:4xBopTznPKO" resolve="tell" />
+                    <node concept="10M0yZ" id="3KV3FXjZMUK" role="37wK5m">
+                      <ref role="1PxDUh" to="oy3s:3HJTsBn4kk_" resolve="EqualsBuiltinConstraint" />
+                      <ref role="3cqZAo" to="oy3s:3HJTsBn4kQs" resolve="INSTANCE" />
+                    </node>
+                    <node concept="37vLTw" id="3KV3FXjZMUL" role="37wK5m">
+                      <ref role="3cqZAo" node="5H6hZahmlpn" resolve="result" />
+                    </node>
+                    <node concept="2ShNRf" id="3KV3FXjZMUM" role="37wK5m">
+                      <node concept="1pGfFk" id="3KV3FXjZMUN" role="2ShVmc">
+                        <ref role="37wK5l" to="oy3s:6SkxsM$2Uu7" resolve="AtomLogical" />
+                        <node concept="1rXfSq" id="3KV3FXjZMUO" role="37wK5m">
+                          <ref role="37wK5l" node="5H6hZahoMly" resolve="buildLub" />
+                          <node concept="37vLTw" id="3KV3FXjZMUP" role="37wK5m">
+                            <ref role="3cqZAo" node="3KV3FXk0pld" resolve="resultList" />
+                          </node>
+                        </node>
+                      </node>
                     </node>
                   </node>
                 </node>
               </node>
+              <node concept="3cpWs6" id="3KV3FXk0sZe" role="3cqZAp">
+                <node concept="3clFbT" id="3KV3FXjZMUU" role="3cqZAk">
+                  <property role="3clFbU" value="true" />
+                </node>
+              </node>
             </node>
           </node>
         </node>
-        <node concept="3clFbH" id="5H6hZahmREM" role="3cqZAp" />
-        <node concept="3clFbF" id="5H6hZahmrgk" role="3cqZAp">
-          <node concept="3clFbT" id="5H6hZahmrgj" role="3clFbG">
-            <property role="3clFbU" value="true" />
-          </node>
-        </node>
       </node>
       <node concept="P$JXv" id="5H6hZahoII1" role="lGtFl">
         <node concept="TZ5HA" id="5H6hZahoII2" role="TZ5H$">
@@ -1049,27 +438,93 @@
         </node>
         <node concept="TZ5HA" id="5H6hZahoJU1" role="TZ5H$">
           <node concept="1dT_AC" id="5H6hZahoJU2" role="1dT_Ay">
-            <property role="1dT_AB" value="Parameters &quot;left&quot; and &quot;right&quot; contain the lists of &quot;subtype paths&quot; organized as follows:" />
+            <property role="1dT_AB" value="Parameters " />
+          </node>
+          <node concept="1dT_AA" id="3KV3FXk0Xal" role="1dT_Ay">
+            <node concept="VVOAv" id="3KV3FXk13HE" role="qph3F">
+              <node concept="TZ5HA" id="3KV3FXk13HI" role="2Xj1qM">
+                <node concept="1dT_AC" id="3KV3FXk13HO" role="1dT_Ay">
+                  <property role="1dT_AB" value="left" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="1dT_AC" id="3KV3FXk0Xak" role="1dT_Ay">
+            <property role="1dT_AB" value=" and " />
+          </node>
+          <node concept="1dT_AA" id="3KV3FXk13HR" role="1dT_Ay">
+            <node concept="VVOAv" id="3KV3FXk13I2" role="qph3F">
+              <node concept="TZ5HA" id="3KV3FXk13I4" role="2Xj1qM">
+                <node concept="1dT_AC" id="3KV3FXk13I8" role="1dT_Ay">
+                  <property role="1dT_AB" value="right" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="1dT_AC" id="3KV3FXk13HQ" role="1dT_Ay">
+            <property role="1dT_AB" value=" contain the lists of &quot;subtype paths&quot; organized as follows:" />
           </node>
         </node>
         <node concept="TZ5HA" id="5H6hZahoJUx" role="TZ5H$">
           <node concept="1dT_AC" id="5H6hZahoJUy" role="1dT_Ay">
-            <property role="1dT_AB" value="  - every path starts at the top type and continues down to the type, at which it originated" />
+            <property role="1dT_AB" value="every path starts at the top type and continues down, following the subtype relation," />
+          </node>
+        </node>
+        <node concept="TZ5HA" id="3KV3FXjXkpE" role="TZ5H$">
+          <node concept="1dT_AC" id="3KV3FXjXkpF" role="1dT_Ay">
+            <property role="1dT_AB" value="to the type at which it originated." />
+          </node>
+        </node>
+        <node concept="TZ5HA" id="3KV3FXjXkm7" role="TZ5H$">
+          <node concept="1dT_AC" id="3KV3FXjXkm8" role="1dT_Ay">
+            <property role="1dT_AB" value="" />
+          </node>
+        </node>
+        <node concept="TZ5HA" id="3KV3FXjXkmA" role="TZ5H$">
+          <node concept="1dT_AC" id="3KV3FXjXkmB" role="1dT_Ay">
+            <property role="1dT_AB" value="The algorithm compares pairwise all paths from &quot;left&quot; and &quot;right&quot; and finds, for each pair," />
+          </node>
+        </node>
+        <node concept="TZ5HA" id="3KV3FXjXknr" role="TZ5H$">
+          <node concept="1dT_AC" id="3KV3FXjXkns" role="1dT_Ay">
+            <property role="1dT_AB" value="the farthest from the root matching term, remembering the intermediate visited terms in the process. " />
+          </node>
+        </node>
+        <node concept="TZ5HA" id="3KV3FXk13IW" role="TZ5H$">
+          <node concept="1dT_AC" id="3KV3FXk13IX" role="1dT_Ay">
+            <property role="1dT_AB" value="It then walks all the paths again in order to eliminate all terms that should be marked as intermediate." />
+          </node>
+        </node>
+        <node concept="TZ5HA" id="3KV3FXjXkoi" role="TZ5H$">
+          <node concept="1dT_AC" id="3KV3FXjXkoj" role="1dT_Ay">
+            <property role="1dT_AB" value="" />
+          </node>
+        </node>
+        <node concept="TZ5HA" id="3KV3FXjXkoJ" role="TZ5H$">
+          <node concept="1dT_AC" id="3KV3FXjXkoK" role="1dT_Ay">
+            <property role="1dT_AB" value="The result is the list of unique terms representing the LUB of the two types." />
           </node>
         </node>
         <node concept="TZ5HA" id="5H6hZahoJVO" role="TZ5H$">
-          <node concept="1dT_AC" id="5H6hZahoJVP" role="1dT_Ay">
-            <property role="1dT_AB" value="  - paths on both lists are sorted naturally on the first element " />
-          </node>
-        </node>
-        <node concept="TZ5HA" id="5H6hZahoJWo" role="TZ5H$">
           <node concept="1dT_AC" id="5H6hZahoJWp" role="1dT_Ay">
             <property role="1dT_AB" value="" />
           </node>
         </node>
         <node concept="TZ5HA" id="5H6hZahoJWY" role="TZ5H$">
           <node concept="1dT_AC" id="5H6hZahoJWZ" role="1dT_Ay">
-            <property role="1dT_AB" value="Both &quot;left&quot; and &quot;right&quot; must be bound, otherwise &quot;false&quot; is returned. " />
+            <property role="1dT_AB" value="Both &quot;left&quot; and &quot;right&quot; parameters must be bound, otherwise " />
+          </node>
+          <node concept="1dT_AA" id="3KV3FXk13II" role="1dT_Ay">
+            <node concept="VVOAv" id="3KV3FXk13IO" role="qph3F">
+              <node concept="TZ5HA" id="3KV3FXk13IQ" role="2Xj1qM">
+                <node concept="1dT_AC" id="3KV3FXk13IU" role="1dT_Ay">
+                  <property role="1dT_AB" value="false" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="1dT_AC" id="3KV3FXk13IH" role="1dT_Ay">
+            <property role="1dT_AB" value=" is returned. " />
           </node>
         </node>
         <node concept="TZ5HA" id="5H6hZahoJXW" role="TZ5H$">
@@ -1079,7 +534,31 @@
         </node>
         <node concept="TZ5HA" id="5H6hZahoJTl" role="TZ5H$">
           <node concept="1dT_AC" id="5H6hZahoJTm" role="1dT_Ay">
-            <property role="1dT_AB" value="On returning &quot;true&quot;, the &quot;result&quot; variable is bound to the list of elements of the LUB intersection type." />
+            <property role="1dT_AB" value="On returning " />
+          </node>
+          <node concept="1dT_AA" id="3KV3FXk13Ib" role="1dT_Ay">
+            <node concept="VVOAv" id="3KV3FXk13Ih" role="qph3F">
+              <node concept="TZ5HA" id="3KV3FXk13Ij" role="2Xj1qM">
+                <node concept="1dT_AC" id="3KV3FXk13In" role="1dT_Ay">
+                  <property role="1dT_AB" value="true" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="1dT_AC" id="3KV3FXk13Ia" role="1dT_Ay">
+            <property role="1dT_AB" value=", the " />
+          </node>
+          <node concept="1dT_AA" id="3KV3FXk13Iq" role="1dT_Ay">
+            <node concept="VVOAv" id="3KV3FXk13I_" role="qph3F">
+              <node concept="TZ5HA" id="3KV3FXk13IB" role="2Xj1qM">
+                <node concept="1dT_AC" id="3KV3FXk13IF" role="1dT_Ay">
+                  <property role="1dT_AB" value="result" />
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="1dT_AC" id="3KV3FXk13Ip" role="1dT_Ay">
+            <property role="1dT_AB" value=" parameter is bound to the list of elements of the LUB intersection type." />
           </node>
         </node>
         <node concept="TZ5HA" id="5H6hZahoJTr" role="TZ5H$">
@@ -1089,795 +568,1059 @@
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-          <ref role="3uigEE" to="oy3s:4U_yxogAknZ" resolve="AtomLogical" />
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+    <node concept="3clFbW" id="3KV3FXjZFyb" role="jymVt">
+      <node concept="37vLTG" id="3KV3FXjZFT2" role="3clF46">
+        <property role="TrG5h" value="computingSession" />
+        <node concept="3uibUv" id="3KV3FXjZFTc" role="1tU5fm">
+          <ref role="3uigEE" to="bspi:6Kcfpq7B0b0" resolve="ComputingSession" />
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-                    <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
-                  </node>
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+      <node concept="3cqZAl" id="3KV3FXjZFyd" role="3clF45" />
+      <node concept="3Tm6S6" id="3KV3FXjZFHB" role="1B3o_S" />
+      <node concept="3clFbS" id="3KV3FXjZFyf" role="3clF47">
+        <node concept="3clFbF" id="3KV3FXjZFTx" role="3cqZAp">
+          <node concept="37vLTI" id="3KV3FXjZFTz" role="3clFbG">
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+              <node concept="Xjq3P" id="3KV3FXjZFTE" role="2Oq$k0" />
+              <node concept="2OwXpG" id="3KV3FXjZFTA" role="2OqNvi">
+                <ref role="2Oxat5" node="3KV3FXjZFTt" resolve="computingSession" />
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-                    <ref role="3cqZAo" node="2DKqMqOyREC" resolve="leftRaw" />
-                  </node>
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+            <node concept="37vLTw" id="3KV3FXjZFTF" role="37vLTx">
+              <ref role="3cqZAo" node="3KV3FXjZFT2" resolve="computingSession" />
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-                            <node concept="37vLTw" id="2DKqMqOu_zN" role="37vLTJ">
-                              <ref role="3cqZAo" node="2DKqMqOul30" resolve="nextRightPath" />
-                            </node>
-                            <node concept="3K4zz7" id="2DKqMqOuyyf" role="37vLTx">
-                              <node concept="10Nm6u" id="2DKqMqOuyyg" role="3K4GZi" />
-                              <node concept="2OqwBi" id="2DKqMqOuyyh" role="3K4Cdx">
-                                <node concept="37vLTw" id="2DKqMqOu_Lt" role="2Oq$k0">
-                                  <ref role="3cqZAo" node="2DKqMqOu8Pa" resolve="rightPathsIt" />
-                                </node>
-                                <node concept="liA8E" id="2DKqMqOuyyj" role="2OqNvi">
-                                  <ref role="37wK5l" to="33ny:~Iterator.hasNext():boolean" resolve="hasNext" />
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-                              </node>
-                              <node concept="2OqwBi" id="2DKqMqOuyyk" role="3K4E3e">
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-                                  <ref role="3cqZAo" node="2DKqMqOu8Pa" resolve="rightPathsIt" />
-                                </node>
-                                <node concept="liA8E" id="2DKqMqOuyym" role="2OqNvi">
-                                  <ref role="37wK5l" to="33ny:~Iterator.next():java.lang.Object" resolve="next" />
-                                </node>
-                              </node>
-                            </node>
-                          </node>
-                        </node>
-                      </node>
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-              <node concept="37vLTw" id="2DKqMqOusdc" role="3uHU7B">
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-        <node concept="3clFbH" id="2DKqMqOuA1e" role="3cqZAp" />
-        <node concept="3clFbF" id="2DKqMqOuA1f" role="3cqZAp">
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-            <node concept="liA8E" id="2DKqMqOuA1i" role="2OqNvi">
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-              <node concept="10M0yZ" id="2DKqMqOuA1j" role="37wK5m">
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-                <ref role="1PxDUh" to="oy3s:3HJTsBn4kk_" resolve="EqualsBuiltinConstraint" />
-              </node>
-              <node concept="37vLTw" id="2DKqMqOuA1k" role="37wK5m">
-                <ref role="3cqZAo" node="2DKqMqOtbJf" resolve="result" />
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-              <node concept="2ShNRf" id="2DKqMqOuA1l" role="37wK5m">
-                <node concept="1pGfFk" id="2DKqMqOuA1m" role="2ShVmc">
-                  <ref role="37wK5l" to="oy3s:6SkxsM$2Uu7" resolve="AtomLogical" />
-                  <node concept="1rXfSq" id="2DKqMqOuA1n" role="37wK5m">
-                    <ref role="37wK5l" node="5H6hZahoMly" resolve="buildLub" />
-                    <node concept="37vLTw" id="2DKqMqOuA1o" role="37wK5m">
-                      <ref role="3cqZAo" node="2DKqMqOtrS1" resolve="resultList" />
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-                </node>
-              </node>
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-        </node>
-        <node concept="3clFbH" id="2DKqMqOuA1r" role="3cqZAp" />
-        <node concept="3clFbF" id="2DKqMqOuA1s" role="3cqZAp">
-          <node concept="3clFbT" id="2DKqMqOuA1t" role="3clFbG">
-            <property role="3clFbU" value="true" />
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-        </node>
-        <node concept="3clFbH" id="2DKqMqOuxCI" role="3cqZAp" />
-      </node>
-      <node concept="P$JXv" id="NEUfp8Lzjr" role="lGtFl">
-        <node concept="TZ5HA" id="NEUfp8Lzjs" role="TZ5H$">
-          <node concept="1dT_AC" id="NEUfp8Lzjt" role="1dT_Ay">
-            <property role="1dT_AB" value="This is the same code as " />
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-          <node concept="1dT_AA" id="NEUfp8LD0y" role="1dT_Ay">
-            <node concept="92FcH" id="NEUfp8LD0C" role="qph3F">
-              <node concept="TZ5HA" id="NEUfp8LD0E" role="2XjZqd" />
-              <node concept="VXe0Z" id="NEUfp8LFCb" role="92FcQ">
-                <ref role="VXe0S" node="5H6hZahmloU" resolve="findLub" />
-              </node>
-            </node>
-          </node>
-          <node concept="1dT_AC" id="NEUfp8LD0x" role="1dT_Ay">
-            <property role="1dT_AB" value=" only using java.util.List as the datatype. Not used since" />
-          </node>
-        </node>
-        <node concept="TZ5HA" id="NEUfp8LGFV" role="TZ5H$">
-          <node concept="1dT_AC" id="NEUfp8LGFW" role="1dT_Ay">
-            <property role="1dT_AB" value="the JCHR solver supports generic types poorly. Besides, one would have to create a way to save lists" />
-          </node>
-        </node>
-        <node concept="TZ5HA" id="NEUfp8LGGF" role="TZ5H$">
-          <node concept="1dT_AC" id="NEUfp8LGGG" role="1dT_Ay">
-            <property role="1dT_AB" value="literals a model to support this. In the future this method should be used instead of the one above." />
-          </node>
-        </node>
-        <node concept="x79VA" id="NEUfp8LzjB" role="x79VK">
-          <property role="x79VB" value="true if succesful" />
-        </node>
       </node>
     </node>
-    <node concept="2tJIrI" id="2DKqMqOtb8o" role="jymVt" />
+    <node concept="2tJIrI" id="3KV3FXjZFHE" role="jymVt" />
+    <node concept="3clFb_" id="3KV3FXjZGYZ" role="jymVt">
+      <property role="TrG5h" value="doFind" />
+      <node concept="3uibUv" id="3KV3FXk0o6d" role="3clF45">
+        <ref role="3uigEE" to="33ny:~List" resolve="List" />
+        <node concept="3uibUv" id="3KV3FXk0oGr" role="11_B2D">
+          <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+        </node>
+      </node>
+      <node concept="3Tm6S6" id="3KV3FXjZPWJ" role="1B3o_S" />
+      <node concept="3clFbS" id="3KV3FXjZGZ3" role="3clF47">
+        <node concept="3SKdUt" id="3KV3FXjZHi7" role="3cqZAp">
+          <node concept="3SKdUq" id="3KV3FXjZHi8" role="3SKWNk">
+            <property role="3SKdUp" value="TODO: factor out standard feature names" />
+          </node>
+        </node>
+        <node concept="3cpWs8" id="3KV3FXjZHi9" role="3cqZAp">
+          <node concept="3cpWsn" id="3KV3FXjZHia" role="3cpWs9">
+            <property role="TrG5h" value="leftPaths" />
+            <node concept="3uibUv" id="3KV3FXjZHib" role="1tU5fm">
+              <ref role="3uigEE" to="33ny:~List" resolve="List" />
+              <node concept="3qUE_q" id="3KV3FXjZHic" role="11_B2D">
+                <node concept="3uibUv" id="3KV3FXjZHid" role="3qUE_r">
+                  <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+                </node>
+              </node>
+            </node>
+            <node concept="1rXfSq" id="3KV3FXjZT9d" role="33vP2m">
+              <ref role="37wK5l" node="3KV3FXjZXXV" resolve="getList" />
+              <node concept="37vLTw" id="3KV3FXjZT9c" role="37wK5m">
+                <ref role="3cqZAo" node="3KV3FXjZHfU" resolve="leftVal" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3cpWs8" id="3KV3FXjZHij" role="3cqZAp">
+          <node concept="3cpWsn" id="3KV3FXjZHik" role="3cpWs9">
+            <property role="TrG5h" value="rightPaths" />
+            <node concept="3uibUv" id="3KV3FXjZHil" role="1tU5fm">
+              <ref role="3uigEE" to="33ny:~List" resolve="List" />
+              <node concept="3qUE_q" id="3KV3FXjZHim" role="11_B2D">
+                <node concept="3uibUv" id="3KV3FXjZHin" role="3qUE_r">
+                  <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+                </node>
+              </node>
+            </node>
+            <node concept="1rXfSq" id="3KV3FXjZTLu" role="33vP2m">
+              <ref role="37wK5l" node="3KV3FXjZXXV" resolve="getList" />
+              <node concept="37vLTw" id="3KV3FXjZTLt" role="37wK5m">
+                <ref role="3cqZAo" node="3KV3FXjZHfW" resolve="rightVal" />
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbJ" id="3KV3FXjZHit" role="3cqZAp">
+          <node concept="3clFbS" id="3KV3FXjZHiu" role="3clFbx">
+            <node concept="3cpWs6" id="3KV3FXjZHiv" role="3cqZAp">
+              <node concept="2YIFZM" id="3KV3FXk0Mm4" role="3cqZAk">
+                <ref role="37wK5l" to="33ny:~Collections.emptyList():java.util.List" resolve="emptyList" />
+                <ref role="1Pybhc" to="33ny:~Collections" resolve="Collections" />
+              </node>
+            </node>
+          </node>
+          <node concept="22lmx$" id="3KV3FXjZHix" role="3clFbw">
+            <node concept="3fqX7Q" id="3KV3FXjZHiy" role="3uHU7w">
+              <node concept="2OqwBi" id="3KV3FXjZHiz" role="3fr31v">
+                <node concept="2OqwBi" id="3KV3FXjZHi$" role="2Oq$k0">
+                  <node concept="37vLTw" id="3KV3FXjZHi_" role="2Oq$k0">
+                    <ref role="3cqZAo" node="3KV3FXjZHik" resolve="rightPaths" />
+                  </node>
+                  <node concept="liA8E" id="3KV3FXjZHiA" role="2OqNvi">
+                    <ref role="37wK5l" to="33ny:~List.iterator():java.util.Iterator" resolve="iterator" />
+                  </node>
+                </node>
+                <node concept="liA8E" id="3KV3FXjZHiB" role="2OqNvi">
+                  <ref role="37wK5l" to="33ny:~Iterator.hasNext():boolean" resolve="hasNext" />
+                </node>
+              </node>
+            </node>
+            <node concept="3fqX7Q" id="3KV3FXjZHiC" role="3uHU7B">
+              <node concept="2OqwBi" id="3KV3FXjZHiD" role="3fr31v">
+                <node concept="2OqwBi" id="3KV3FXjZHiE" role="2Oq$k0">
+                  <node concept="37vLTw" id="3KV3FXjZHiF" role="2Oq$k0">
+                    <ref role="3cqZAo" node="3KV3FXjZHia" resolve="leftPaths" />
+                  </node>
+                  <node concept="liA8E" id="3KV3FXjZHiG" role="2OqNvi">
+                    <ref role="37wK5l" to="33ny:~List.iterator():java.util.Iterator" resolve="iterator" />
+                  </node>
+                </node>
+                <node concept="liA8E" id="3KV3FXjZHiH" role="2OqNvi">
+                  <ref role="37wK5l" to="33ny:~Iterator.hasNext():boolean" resolve="hasNext" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="3KV3FXjZH$e" role="3cqZAp" />
+        <node concept="3clFbF" id="3KV3FXjZHMV" role="3cqZAp">
+          <node concept="1rXfSq" id="3KV3FXjZKA_" role="3clFbG">
+            <ref role="37wK5l" node="3KV3FXjZJPH" resolve="collectCandidates" />
+            <node concept="37vLTw" id="3KV3FXjZHMX" role="37wK5m">
+              <ref role="3cqZAo" node="3KV3FXjZHia" resolve="leftPaths" />
+            </node>
+            <node concept="37vLTw" id="3KV3FXjZHMY" role="37wK5m">
+              <ref role="3cqZAo" node="3KV3FXjZHik" resolve="rightPaths" />
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbF" id="3KV3FXk0Dn8" role="3cqZAp">
+          <node concept="1rXfSq" id="3KV3FXk0Dn7" role="3clFbG">
+            <ref role="37wK5l" node="3KV3FXk0Dn3" resolve="collectIntermediate" />
+            <node concept="37vLTw" id="3KV3FXk0Dn6" role="37wK5m">
+              <ref role="3cqZAo" node="3KV3FXjZHia" resolve="leftPaths" />
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbF" id="3KV3FXk0GxC" role="3cqZAp">
+          <node concept="1rXfSq" id="3KV3FXk0GxD" role="3clFbG">
+            <ref role="37wK5l" node="3KV3FXk0Dn3" resolve="collectIntermediate" />
+            <node concept="37vLTw" id="3KV3FXk0H_c" role="37wK5m">
+              <ref role="3cqZAo" node="3KV3FXjZHik" resolve="rightPaths" />
+            </node>
+          </node>
+        </node>
+        <node concept="3clFbH" id="3KV3FXk0Jce" role="3cqZAp" />
+        <node concept="3cpWs8" id="3KV3FXjZMUc" role="3cqZAp">
+          <node concept="3cpWsn" id="3KV3FXjZMUd" role="3cpWs9">
+            <property role="TrG5h" value="resultList" />
+            <node concept="3uibUv" id="3KV3FXjZMUe" role="1tU5fm">
+              <ref role="3uigEE" to="33ny:~List" resolve="List" />
+              <node concept="3uibUv" id="3KV3FXjZMUf" role="11_B2D">
+                <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+              </node>
+            </node>
+            <node concept="2ShNRf" id="3KV3FXjZMUg" role="33vP2m">
+              <node concept="1pGfFk" id="3KV3FXjZMUh" role="2ShVmc">
+                <ref role="37wK5l" to="33ny:~ArrayList.&lt;init&gt;()" resolve="ArrayList" />
+                <node concept="3uibUv" id="3KV3FXjZMUi" role="1pMfVU">
+                  <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+                </node>
+              </node>
+            </node>
+          </node>
+        </node>
+        <node concept="1DcWWT" id="3KV3FXjZMUj" role="3cqZAp">
+          <node concept="3clFbS" id="3KV3FXjZMUk" role="2LFqv$">
+            <node concept="3clFbJ" id="3KV3FXjZMUl" role="3cqZAp">
+              <node concept="3clFbS" id="3KV3FXjZMUm" role="3clFbx">
+                <node concept="3clFbF" id="3KV3FXjZMUn" role="3cqZAp">
+                  <node concept="2OqwBi" id="3KV3FXjZMUo" role="3clFbG">
+                    <node concept="37vLTw" id="3KV3FXjZMUp" role="2Oq$k0">
+                      <ref role="3cqZAo" node="3KV3FXjZMUd" resolve="resultList" />
+                    </node>
+                    <node concept="liA8E" id="3KV3FXjZMUq" role="2OqNvi">
+                      <ref role="37wK5l" to="33ny:~List.add(java.lang.Object):boolean" resolve="add" />
+                      <node concept="37vLTw" id="3KV3FXjZMUr" role="37wK5m">
+                        <ref role="3cqZAo" node="3KV3FXjZMUx" resolve="c" />
+                      </node>
+                    </node>
+                  </node>
+                </node>
+              </node>
+              <node concept="3fqX7Q" id="3KV3FXjZMUs" role="3clFbw">
+                <node concept="1rXfSq" id="3KV3FXjZMUt" role="3fr31v">
+                  <ref role="37wK5l" node="3KV3FXk025v" resolve="contains" />
+                  <node concept="37vLTw" id="3KV3FXjZMUu" role="37wK5m">
+                    <ref role="3cqZAo" node="3KV3FXjZMUx" resolve="c" />
+                  </node>
+                  <node concept="37vLTw" id="3KV3FXjZMUv" role="37wK5m">
+                    <ref role="3cqZAo" node="3KV3FXjZG69" resolve="intermediateList" />
+                  </node>
+                </node>
+              </node>
+            </node>
+          </node>
+          <node concept="3cpWsn" id="3KV3FXjZMUx" role="1Duv9x">
+            <property role="TrG5h" value="c" />
+            <node concept="3uibUv" id="3KV3FXjZMUy" role="1tU5fm">
+              <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+            </node>
+          </node>
+          <node concept="37vLTw" id="3KV3FXjZMUz" role="1DdaDG">
+            <ref role="3cqZAo" node="3KV3FXjZG64" resolve="candidateList" />
+          </node>
+        </node>
+        <node concept="3clFbF" id="3KV3FXk0HB6" role="3cqZAp">
+          <node concept="37vLTw" id="3KV3FXk0HB4" role="3clFbG">
+            <ref role="3cqZAo" node="3KV3FXjZMUd" resolve="resultList" />
+          </node>
+        </node>
+      </node>
+      <node concept="37vLTG" id="3KV3FXjZHfU" role="3clF46">
+        <property role="TrG5h" value="leftVal" />
+        <node concept="3uibUv" id="3KV3FXk0viY" role="1tU5fm">
+          <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+        </node>
+      </node>
+      <node concept="37vLTG" id="3KV3FXjZHfW" role="3clF46">
+        <property role="TrG5h" value="rightVal" />
+        <node concept="3uibUv" id="3KV3FXk0viZ" role="1tU5fm">
+          <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="3KV3FXk0RYp" role="jymVt" />
+    <node concept="3clFb_" id="3KV3FXjZJPH" role="jymVt">
+      <property role="TrG5h" value="collectCandidates" />
+      <property role="DiZV1" value="false" />
+      <property role="od$2w" value="false" />
+      <node concept="3clFbS" id="3KV3FXjZDGD" role="3clF47">
+        <node concept="1DcWWT" id="3KV3FXjZDGE" role="3cqZAp">
+          <node concept="3clFbS" id="3KV3FXjZDGF" role="2LFqv$">
+            <node concept="1DcWWT" id="3KV3FXjZDGG" role="3cqZAp">
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+      <node concept="3cqZAl" id="3KV3FXk0Dn5" role="3clF45" />
+      <node concept="37vLTG" id="3KV3FXk0DmW" role="3clF46">
+        <property role="TrG5h" value="paths" />
+        <node concept="3uibUv" id="3KV3FXk0DmX" role="1tU5fm">
+          <ref role="3uigEE" to="33ny:~List" resolve="List" />
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+              <node concept="3cpWsn" id="3KV3FXk0Dli" role="3cpWs9">
+                <property role="TrG5h" value="tmpList" />
+                <node concept="3uibUv" id="3KV3FXk0Dlj" role="1tU5fm">
+                  <ref role="3uigEE" to="33ny:~List" resolve="List" />
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+                    <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
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+                  <node concept="1pGfFk" id="3KV3FXk0Dlm" role="2ShVmc">
+                    <ref role="37wK5l" to="33ny:~ArrayList.&lt;init&gt;()" resolve="ArrayList" />
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+            <node concept="3cpWs8" id="3KV3FXk0Dlo" role="3cqZAp">
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+                <property role="TrG5h" value="path" />
+                <node concept="3uibUv" id="3KV3FXk0Dlq" role="1tU5fm">
+                  <ref role="3uigEE" to="33ny:~List" resolve="List" />
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+                      <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
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+                </node>
+                <node concept="1rXfSq" id="3KV3FXk0Dlt" role="33vP2m">
+                  <ref role="37wK5l" node="3KV3FXjZXXV" resolve="getList" />
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+                    <ref role="3cqZAo" node="3KV3FXk0DmT" resolve="nextPath" />
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+            <node concept="3cpWs8" id="3KV3FXk0Dlv" role="3cqZAp">
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+                <property role="TrG5h" value="next" />
+                <node concept="3uibUv" id="3KV3FXk0Dlx" role="1tU5fm">
+                  <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
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+            </node>
+            <node concept="1Dw8fO" id="3KV3FXk0Dly" role="3cqZAp">
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+                <node concept="3clFbF" id="3KV3FXk0Dl$" role="3cqZAp">
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+                        <ref role="3cqZAo" node="3KV3FXk0DmJ" resolve="pathIt" />
+                      </node>
+                      <node concept="liA8E" id="3KV3FXk0DlC" role="2OqNvi">
+                        <ref role="37wK5l" to="33ny:~Iterator.next():java.lang.Object" resolve="next" />
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+                    </node>
+                    <node concept="37vLTw" id="3KV3FXk0DlD" role="37vLTJ">
+                      <ref role="3cqZAo" node="3KV3FXk0Dlw" resolve="next" />
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+                  </node>
+                </node>
+                <node concept="3clFbJ" id="3KV3FXk0DlE" role="3cqZAp">
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+                    <node concept="3N13vt" id="3KV3FXk0DlG" role="3cqZAp" />
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+                  <node concept="1rXfSq" id="3KV3FXk0DlH" role="3clFbw">
+                    <ref role="37wK5l" node="3KV3FXk025v" resolve="contains" />
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+                      <ref role="3cqZAo" node="3KV3FXk0Dlw" resolve="next" />
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+                    <node concept="37vLTw" id="3KV3FXk0DlJ" role="37wK5m">
+                      <ref role="3cqZAo" node="3KV3FXjZG69" resolve="intermediateList" />
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+                  </node>
+                </node>
+                <node concept="3clFbJ" id="3KV3FXk0DlK" role="3cqZAp">
+                  <node concept="3clFbS" id="3KV3FXk0DlL" role="3clFbx">
+                    <node concept="3clFbF" id="3KV3FXk0DlO" role="3cqZAp">
+                      <node concept="2OqwBi" id="3KV3FXk0DlP" role="3clFbG">
+                        <node concept="37vLTw" id="3KV3FXk0DlQ" role="2Oq$k0">
+                          <ref role="3cqZAo" node="3KV3FXk0Dli" resolve="tmpList" />
+                        </node>
+                        <node concept="liA8E" id="3KV3FXk0DlR" role="2OqNvi">
+                          <ref role="37wK5l" to="33ny:~List.add(java.lang.Object):boolean" resolve="add" />
+                          <node concept="37vLTw" id="3KV3FXk0DlS" role="37wK5m">
+                            <ref role="3cqZAo" node="3KV3FXk0Dlw" resolve="next" />
+                          </node>
+                        </node>
+                      </node>
+                    </node>
+                    <node concept="1Dw8fO" id="3KV3FXk0DlY" role="3cqZAp">
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+                        <node concept="3clFbF" id="3KV3FXk0Dm0" role="3cqZAp">
+                          <node concept="37vLTI" id="3KV3FXk0Dm1" role="3clFbG">
+                            <node concept="2OqwBi" id="3KV3FXk0Dm2" role="37vLTx">
+                              <node concept="37vLTw" id="3KV3FXk0Dm3" role="2Oq$k0">
+                                <ref role="3cqZAo" node="3KV3FXk0DmJ" resolve="pathIt" />
+                              </node>
+                              <node concept="liA8E" id="3KV3FXk0Dm4" role="2OqNvi">
+                                <ref role="37wK5l" to="33ny:~Iterator.next():java.lang.Object" resolve="next" />
+                              </node>
+                            </node>
+                            <node concept="37vLTw" id="3KV3FXk0Dm5" role="37vLTJ">
+                              <ref role="3cqZAo" node="3KV3FXk0Dlw" resolve="next" />
+                            </node>
+                          </node>
+                        </node>
+                        <node concept="3clFbJ" id="3KV3FXk0Dmm" role="3cqZAp">
+                          <node concept="3clFbS" id="3KV3FXk0Dmn" role="3clFbx">
+                            <node concept="3clFbF" id="3KV3FXk0Dmo" role="3cqZAp">
+                              <node concept="2OqwBi" id="3KV3FXk0Dmp" role="3clFbG">
+                                <node concept="37vLTw" id="3KV3FXk0Dmq" role="2Oq$k0">
+                                  <ref role="3cqZAo" node="3KV3FXjZG69" resolve="intermediateList" />
+                                </node>
+                                <node concept="liA8E" id="3KV3FXk0Dmr" role="2OqNvi">
+                                  <ref role="37wK5l" to="33ny:~List.addAll(java.util.Collection):boolean" resolve="addAll" />
+                                  <node concept="37vLTw" id="3KV3FXk0Dms" role="37wK5m">
+                                    <ref role="3cqZAo" node="3KV3FXk0Dli" resolve="tmpList" />
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+                                </node>
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+                            <node concept="3clFbF" id="3KV3FXk0Dmt" role="3cqZAp">
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+                                <node concept="37vLTw" id="3KV3FXk0Dmv" role="2Oq$k0">
+                                  <ref role="3cqZAo" node="3KV3FXk0Dli" resolve="tmpList" />
+                                </node>
+                                <node concept="liA8E" id="3KV3FXk0Dmw" role="2OqNvi">
+                                  <ref role="37wK5l" to="33ny:~List.clear():void" resolve="clear" />
+                                </node>
+                              </node>
+                            </node>
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+                                <node concept="37vLTw" id="3KV3FXk0Dmz" role="2Oq$k0">
+                                  <ref role="3cqZAo" node="3KV3FXk0Dli" resolve="tmpList" />
+                                </node>
+                                <node concept="liA8E" id="3KV3FXk0Dm$" role="2OqNvi">
+                                  <ref role="37wK5l" to="33ny:~List.add(java.lang.Object):boolean" resolve="add" />
+                                  <node concept="37vLTw" id="3KV3FXk0Dm_" role="37wK5m">
+                                    <ref role="3cqZAo" node="3KV3FXk0Dlw" resolve="next" />
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+                                </node>
+                              </node>
+                            </node>
+                            <node concept="3clFbH" id="3KV3FXk0PP7" role="3cqZAp" />
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+                          <node concept="1rXfSq" id="3KV3FXk0DmA" role="3clFbw">
+                            <ref role="37wK5l" node="3KV3FXk025v" resolve="contains" />
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+                              <ref role="3cqZAo" node="3KV3FXk0Dlw" resolve="next" />
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+                            <node concept="37vLTw" id="3KV3FXk0DmC" role="37wK5m">
+                              <ref role="3cqZAo" node="3KV3FXjZG64" resolve="candidateList" />
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+                          </node>
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+                                  <node concept="37vLTw" id="3KV3FXk0Dma" role="2Oq$k0">
+                                    <ref role="3cqZAo" node="3KV3FXk0Dli" resolve="tmpList" />
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+                                  <node concept="liA8E" id="3KV3FXk0Dmb" role="2OqNvi">
+                                    <ref role="37wK5l" to="33ny:~List.add(java.lang.Object):boolean" resolve="add" />
+                                    <node concept="37vLTw" id="3KV3FXk0Dmc" role="37wK5m">
+                                      <ref role="3cqZAo" node="3KV3FXk0Dlw" resolve="next" />
+                                    </node>
+                                  </node>
+                                </node>
+                              </node>
+                            </node>
+                            <node concept="1Wc70l" id="3KV3FXk0Pp9" role="3eO9$A">
+                              <node concept="3fqX7Q" id="3KV3FXk0Ppa" role="3uHU7w">
+                                <node concept="1rXfSq" id="3KV3FXk0Ppb" role="3fr31v">
+                                  <ref role="37wK5l" node="3KV3FXk025v" resolve="contains" />
+                                  <node concept="37vLTw" id="3KV3FXk0Ppc" role="37wK5m">
+                                    <ref role="3cqZAo" node="3KV3FXk0Dlw" resolve="next" />
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+                                  <node concept="37vLTw" id="3KV3FXk0Ppd" role="37wK5m">
+                                    <ref role="3cqZAo" node="3KV3FXjZG69" resolve="intermediateList" />
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+                                </node>
+                              </node>
+                              <node concept="3fqX7Q" id="3KV3FXk0Ppe" role="3uHU7B">
+                                <node concept="1rXfSq" id="3KV3FXk0Ppf" role="3fr31v">
+                                  <ref role="37wK5l" node="3KV3FXk025v" resolve="contains" />
+                                  <node concept="37vLTw" id="3KV3FXk0Ppg" role="37wK5m">
+                                    <ref role="3cqZAo" node="3KV3FXk0Dlw" resolve="next" />
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+                                  <node concept="37vLTw" id="3KV3FXk0Pph" role="37wK5m">
+                                    <ref role="3cqZAo" node="3KV3FXk0Dli" resolve="tmpList" />
+                                  </node>
+                                </node>
+                              </node>
+                            </node>
+                          </node>
+                        </node>
+                      </node>
+                      <node concept="2OqwBi" id="3KV3FXk0DmD" role="1Dwp0S">
+                        <node concept="37vLTw" id="3KV3FXk0DmE" role="2Oq$k0">
+                          <ref role="3cqZAo" node="3KV3FXk0DmJ" resolve="pathIt" />
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+                        <node concept="liA8E" id="3KV3FXk0DmF" role="2OqNvi">
+                          <ref role="37wK5l" to="33ny:~Iterator.hasNext():boolean" resolve="hasNext" />
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+                    </node>
+                  </node>
+                  <node concept="1rXfSq" id="3KV3FXk0DmG" role="3clFbw">
+                    <ref role="37wK5l" node="3KV3FXk025v" resolve="contains" />
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+                    <node concept="37vLTw" id="3KV3FXk0DmI" role="37wK5m">
+                      <ref role="3cqZAo" node="3KV3FXjZG64" resolve="candidateList" />
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+                  </node>
+                </node>
+              </node>
+              <node concept="3cpWsn" id="3KV3FXk0DmJ" role="1Duv9x">
+                <property role="TrG5h" value="pathIt" />
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+                  <ref role="3uigEE" to="33ny:~Iterator" resolve="Iterator" />
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+                      <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
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+                <node concept="2OqwBi" id="3KV3FXk0DmN" role="33vP2m">
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+                  <ref role="3cqZAo" node="3KV3FXk0DmJ" resolve="pathIt" />
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+                <node concept="liA8E" id="3KV3FXk0DmS" role="2OqNvi">
+                  <ref role="37wK5l" to="33ny:~Iterator.hasNext():boolean" resolve="hasNext" />
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+          <node concept="3cpWsn" id="3KV3FXk0DmT" role="1Duv9x">
+            <property role="TrG5h" value="nextPath" />
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+              <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
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+          <node concept="37vLTw" id="3KV3FXk0Dn0" role="1DdaDG">
+            <ref role="3cqZAo" node="3KV3FXk0DmW" resolve="paths" />
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+      <node concept="P$JXv" id="3KV3FXk13Ma" role="lGtFl">
+        <node concept="TZ5HA" id="3KV3FXk13Mb" role="TZ5H$">
+          <node concept="1dT_AC" id="3KV3FXk13Mc" role="1dT_Ay">
+            <property role="1dT_AB" value="Walks the path until first &quot;candidate&quot; is found, and record it. Then walks further until the next" />
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+        </node>
+        <node concept="TZ5HA" id="3KV3FXk14mj" role="TZ5H$">
+          <node concept="1dT_AC" id="3KV3FXk14mk" role="1dT_Ay">
+            <property role="1dT_AB" value="&quot;candidate&quot;, recording all visited terms. If the second &quot;candidate&quot; is found, all the recorded terms" />
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+        <node concept="TZ5HA" id="3KV3FXk14mp" role="TZ5H$">
+          <node concept="1dT_AC" id="3KV3FXk14mq" role="1dT_Ay">
+            <property role="1dT_AB" value="are added to " />
+          </node>
+          <node concept="1dT_AA" id="3KV3FXk14mC" role="1dT_Ay">
+            <node concept="92FcH" id="3KV3FXk14mI" role="qph3F">
+              <node concept="TZ5HA" id="3KV3FXk14mK" role="2XjZqd" />
+              <node concept="VUqz4" id="3KV3FXk16Yv" role="92FcQ">
+                <ref role="YTMYt" node="3KV3FXjZG69" resolve="intermediateList" />
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+            </node>
+          </node>
+          <node concept="1dT_AC" id="3KV3FXk14mB" role="1dT_Ay">
+            <property role="1dT_AB" value=". Then the process repeats." />
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="2tJIrI" id="3KV3FXjZU7P" role="jymVt" />
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+    <node concept="3clFb_" id="3KV3FXk025v" role="jymVt">
+      <property role="TrG5h" value="contains" />
+      <property role="DiZV1" value="false" />
+      <property role="od$2w" value="false" />
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+              <node concept="1rXfSq" id="3KV3FXjZEPP" role="3clFbw">
+                <ref role="37wK5l" node="3KV3FXk0aK5" resolve="matches" />
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+                  <ref role="3cqZAo" node="3KV3FXjXlPb" resolve="c" />
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+            <property role="TrG5h" value="c" />
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+          <node concept="37vLTw" id="3KV3FXjXlPg" role="1DdaDG">
+            <ref role="3cqZAo" node="3KV3FXjXlEK" resolve="components" />
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+          <node concept="3clFbT" id="3KV3FXjXoBD" role="3cqZAk">
+            <property role="3clFbU" value="false" />
+          </node>
+        </node>
+      </node>
+      <node concept="37vLTG" id="3KV3FXjXlBn" role="3clF46">
+        <property role="TrG5h" value="atom" />
+        <node concept="3uibUv" id="3KV3FXjXlCO" role="1tU5fm">
+          <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+        </node>
+      </node>
+      <node concept="37vLTG" id="3KV3FXjXlEK" role="3clF46">
+        <property role="TrG5h" value="components" />
+        <node concept="3uibUv" id="3KV3FXjXlGf" role="1tU5fm">
+          <ref role="3uigEE" to="33ny:~List" resolve="List" />
+          <node concept="3uibUv" id="3KV3FXjXlHm" role="11_B2D">
+            <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+          </node>
+        </node>
+      </node>
+      <node concept="10P_77" id="3KV3FXjXlqR" role="3clF45" />
+      <node concept="3Tm6S6" id="3KV3FXjXles" role="1B3o_S" />
+    </node>
+    <node concept="2tJIrI" id="3KV3FXjZluG" role="jymVt" />
+    <node concept="3clFb_" id="3KV3FXk0aK5" role="jymVt">
+      <property role="TrG5h" value="matches" />
+      <property role="DiZV1" value="false" />
+      <property role="od$2w" value="false" />
+      <node concept="3clFbS" id="3KV3FXjZkvI" role="3clF47">
+        <node concept="3cpWs6" id="3KV3FXjZkQU" role="3cqZAp">
+          <node concept="2OqwBi" id="3KV3FXjZkQV" role="3cqZAk">
+            <node concept="37vLTw" id="3KV3FXjZkRN" role="2Oq$k0">
+              <ref role="3cqZAo" node="3KV3FXjZFTt" resolve="computingSession" />
+            </node>
+            <node concept="liA8E" id="3KV3FXjZkQX" role="2OqNvi">
+              <ref role="37wK5l" to="bspi:4xBopTznHV5" resolve="ask" />
+              <node concept="10M0yZ" id="3KV3FXjZkQY" role="37wK5m">
+                <ref role="1PxDUh" to="oy3s:2GO7tyJVmP4" resolve="UnificationBuiltinConstraint" />
+                <ref role="3cqZAo" to="oy3s:2GO7tyJY8Rr" resolve="INSTANCE" />
+              </node>
+              <node concept="37vLTw" id="3KV3FXjZkRO" role="37wK5m">
+                <ref role="3cqZAo" node="3KV3FXjZkR1" resolve="nextLeft" />
+              </node>
+              <node concept="37vLTw" id="3KV3FXjZkRM" role="37wK5m">
+                <ref role="3cqZAo" node="3KV3FXjZkR3" resolve="nextRight" />
+              </node>
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="37vLTG" id="3KV3FXjZkR1" role="3clF46">
+        <property role="TrG5h" value="nextLeft" />
+        <node concept="3uibUv" id="3KV3FXjZkR2" role="1tU5fm">
+          <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+        </node>
+      </node>
+      <node concept="37vLTG" id="3KV3FXjZkR3" role="3clF46">
+        <property role="TrG5h" value="nextRight" />
+        <node concept="3uibUv" id="3KV3FXjZkR4" role="1tU5fm">
+          <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+        </node>
+      </node>
+      <node concept="10P_77" id="3KV3FXjZlf3" role="3clF45" />
+      <node concept="3Tm6S6" id="3KV3FXjZlf2" role="1B3o_S" />
+    </node>
+    <node concept="2tJIrI" id="3KV3FXk0ei1" role="jymVt" />
+    <node concept="2YIFZL" id="3KV3FXjZXXV" role="jymVt">
+      <property role="TrG5h" value="getList" />
+      <property role="DiZV1" value="false" />
+      <property role="od$2w" value="false" />
+      <node concept="3clFbS" id="3KV3FXjZSZG" role="3clF47">
+        <node concept="3SKdUt" id="3KV3FXjZDGI" role="3cqZAp">
+          <node concept="3SKdUq" id="3KV3FXjZDGJ" role="3SKWNk">
+            <property role="3SKdUp" value="TODO: factor out standard feature names" />
+          </node>
+        </node>
+        <node concept="3cpWs6" id="3KV3FXjZT2R" role="3cqZAp">
+          <node concept="2OqwBi" id="3KV3FXjZT2S" role="3cqZAk">
+            <node concept="2YIFZM" id="3KV3FXjZT2T" role="2Oq$k0">
+              <ref role="1Pybhc" to="ie8e:3JgCwkqd3K7" resolve="Finders" />
+              <ref role="37wK5l" to="ie8e:3OPtF03pX11" resolve="findList" />
+              <node concept="37vLTw" id="3KV3FXjZT5T" role="37wK5m">
+                <ref role="3cqZAo" node="3KV3FXjZT2X" resolve="leftVal" />
+              </node>
+              <node concept="Xl_RD" id="3KV3FXjZT2V" role="37wK5m">
+                <property role="Xl_RC" value="list" />
+              </node>
+            </node>
+            <node concept="liA8E" id="3KV3FXjZT2W" role="2OqNvi">
+              <ref role="37wK5l" to="ie8e:3OPtF03nYWm" resolve="result" />
+            </node>
+          </node>
+        </node>
+      </node>
+      <node concept="37vLTG" id="3KV3FXjZT2X" role="3clF46">
+        <property role="TrG5h" value="leftVal" />
+        <node concept="3uibUv" id="3KV3FXjZT2Y" role="1tU5fm">
+          <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+        </node>
+      </node>
+      <node concept="3uibUv" id="3KV3FXjZT99" role="3clF45">
+        <ref role="3uigEE" to="33ny:~List" resolve="List" />
+        <node concept="3qUE_q" id="3KV3FXjZT9a" role="11_B2D">
+          <node concept="3uibUv" id="3KV3FXjZT9b" role="3qUE_r">
+            <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+          </node>
+        </node>
+      </node>
+      <node concept="3Tm6S6" id="3KV3FXjZT98" role="1B3o_S" />
+    </node>
+    <node concept="2tJIrI" id="3KV3FXjZGLH" role="jymVt" />
     <node concept="2YIFZL" id="5H6hZahoMly" role="jymVt">
       <property role="TrG5h" value="buildLub" />
       <node concept="37vLTG" id="5H6hZahoMRV" role="3clF46">
@@ -1997,53 +1740,52 @@
       </node>
     </node>
     <node concept="2tJIrI" id="5H6hZahoLOt" role="jymVt" />
-    <node concept="2YIFZL" id="5H6hZahoyat" role="jymVt">
-      <property role="TrG5h" value="compare" />
-      <node concept="37vLTG" id="5H6hZahoy$v" role="3clF46">
-        <property role="TrG5h" value="left" />
-        <node concept="3uibUv" id="5H6hZahoy$J" role="1tU5fm">
+    <node concept="3Tm1VV" id="5H6hZahmloo" role="1B3o_S" />
+    <node concept="312cEg" id="3KV3FXjZFTt" role="jymVt">
+      <property role="TrG5h" value="computingSession" />
+      <node concept="3Tm6S6" id="3KV3FXjZFTu" role="1B3o_S" />
+      <node concept="3uibUv" id="3KV3FXjZFTw" role="1tU5fm">
+        <ref role="3uigEE" to="bspi:6Kcfpq7B0b0" resolve="ComputingSession" />
+      </node>
+    </node>
+    <node concept="312cEg" id="3KV3FXjZG64" role="jymVt">
+      <property role="TrG5h" value="candidateList" />
+      <property role="3TUv4t" value="false" />
+      <node concept="3Tm6S6" id="3KV3FXjZG65" role="1B3o_S" />
+      <node concept="3uibUv" id="3KV3FXjZG67" role="1tU5fm">
+        <ref role="3uigEE" to="33ny:~List" resolve="List" />
+        <node concept="3uibUv" id="3KV3FXjZG68" role="11_B2D">
           <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
         </node>
       </node>
-      <node concept="37vLTG" id="5H6hZahoyA2" role="3clF46">
-        <property role="TrG5h" value="right" />
-        <node concept="3uibUv" id="5H6hZahoyAl" role="1tU5fm">
-          <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
-        </node>
-      </node>
-      <node concept="10Oyi0" id="5H6hZahoy$s" role="3clF45" />
-      <node concept="3Tm6S6" id="5H6hZahoyzF" role="1B3o_S" />
-      <node concept="3clFbS" id="5H6hZahoyax" role="3clF47">
-        <node concept="3SKdUt" id="5H6hZahoI_z" role="3cqZAp">
-          <node concept="3SKdUq" id="5H6hZahoIGR" role="3SKWNk">
-            <property role="3SKdUp" value="FIXME: implement real comparator instead of comparing strings" />
-          </node>
-        </node>
-        <node concept="3clFbF" id="5H6hZahoHfd" role="3cqZAp">
-          <node concept="2OqwBi" id="5H6hZahoHHE" role="3clFbG">
-            <node concept="2YIFZM" id="5H6hZahoHgi" role="2Oq$k0">
-              <ref role="1Pybhc" to="4t1t:4peSo3CHy8D" resolve="NodePrinter" />
-              <ref role="37wK5l" to="4t1t:4peSo3CHBfF" resolve="print" />
-              <node concept="37vLTw" id="5H6hZahoHjh" role="37wK5m">
-                <ref role="3cqZAo" node="5H6hZahoy$v" resolve="left" />
-              </node>
-            </node>
-            <node concept="liA8E" id="5H6hZahoIcz" role="2OqNvi">
-              <ref role="37wK5l" to="wyt6:~String.compareTo(java.lang.String):int" resolve="compareTo" />
-              <node concept="2YIFZM" id="5H6hZahoIjR" role="37wK5m">
-                <ref role="1Pybhc" to="4t1t:4peSo3CHy8D" resolve="NodePrinter" />
-                <ref role="37wK5l" to="4t1t:4peSo3CHBfF" resolve="print" />
-                <node concept="37vLTw" id="5H6hZahoIlf" role="37wK5m">
-                  <ref role="3cqZAo" node="5H6hZahoyA2" resolve="right" />
-                </node>
-              </node>
-            </node>
+      <node concept="2ShNRf" id="3KV3FXjZGkF" role="33vP2m">
+        <node concept="1pGfFk" id="3KV3FXjZGrO" role="2ShVmc">
+          <ref role="37wK5l" to="33ny:~ArrayList.&lt;init&gt;()" resolve="ArrayList" />
+          <node concept="3uibUv" id="3KV3FXjZGwh" role="1pMfVU">
+            <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+          </node>
+        </node>
+      </node>
+    </node>
+    <node concept="312cEg" id="3KV3FXjZG69" role="jymVt">
+      <property role="TrG5h" value="intermediateList" />
+      <property role="3TUv4t" value="false" />
+      <node concept="3Tm6S6" id="3KV3FXjZG6a" role="1B3o_S" />
+      <node concept="3uibUv" id="3KV3FXjZG6c" role="1tU5fm">
+        <ref role="3uigEE" to="33ny:~List" resolve="List" />
+        <node concept="3uibUv" id="3KV3FXjZG6d" role="11_B2D">
+          <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
+        </node>
+      </node>
+      <node concept="2ShNRf" id="3KV3FXjZGzO" role="33vP2m">
+        <node concept="1pGfFk" id="3KV3FXjZGzP" role="2ShVmc">
+          <ref role="37wK5l" to="33ny:~ArrayList.&lt;init&gt;()" resolve="ArrayList" />
+          <node concept="3uibUv" id="3KV3FXjZGzQ" role="1pMfVU">
+            <ref role="3uigEE" to="ie8e:1bm7a6EXvsP" resolve="Atom" />
           </node>
         </node>
       </node>
     </node>
-    <node concept="2tJIrI" id="5H6hZahrbuT" role="jymVt" />
-    <node concept="3Tm1VV" id="5H6hZahmloo" role="1B3o_S" />
   </node>
   <node concept="312cEu" id="2DKqMqOsrje">
     <property role="TrG5h" value="Meet" />