/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/Termination.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2023/count0-countEven-sample-abs.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 18:39:01,157 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 18:39:01,210 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 18:39:01,215 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 18:39:01,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 18:39:01,216 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 18:39:01,216 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 18:39:01,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 18:39:01,237 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 18:39:01,238 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 18:39:01,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 18:39:01,238 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 18:39:01,238 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 18:39:01,239 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 18:39:01,239 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 18:39:01,239 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 18:39:01,239 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 18:39:01,239 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 18:39:01,239 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 18:39:01,239 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 18:39:01,239 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 18:39:01,239 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 18:39:01,239 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 18:39:01,239 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 18:39:01,239 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 18:39:01,239 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 18:39:01,239 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 18:39:01,239 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 18:39:01,239 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 18:39:01,240 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 18:39:01,240 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 18:39:01,240 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 18:39:01,240 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 18:39:01,240 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 18:39:01,240 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 18:39:01,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:39:01,240 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 18:39:01,240 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 18:39:01,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 18:39:01,240 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 18:39:01,240 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 18:39:01,240 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 18:39:01,240 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 18:39:01,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 18:39:01,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 18:39:01,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 18:39:01,490 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 18:39:01,490 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 18:39:01,492 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/POPL2023/count0-countEven-sample-abs.bpl [2025-04-26 18:39:01,492 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/POPL2023/count0-countEven-sample-abs.bpl' [2025-04-26 18:39:01,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 18:39:01,510 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 18:39:01,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 18:39:01,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 18:39:01,511 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 18:39:01,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "count0-countEven-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:39:01" (1/1) ... [2025-04-26 18:39:01,537 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "count0-countEven-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:39:01" (1/1) ... [2025-04-26 18:39:01,547 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 18:39:01,548 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 18:39:01,549 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 18:39:01,549 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 18:39:01,549 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 18:39:01,554 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "count0-countEven-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:39:01" (1/1) ... [2025-04-26 18:39:01,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "count0-countEven-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:39:01" (1/1) ... [2025-04-26 18:39:01,556 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "count0-countEven-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:39:01" (1/1) ... [2025-04-26 18:39:01,557 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "count0-countEven-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:39:01" (1/1) ... [2025-04-26 18:39:01,558 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "count0-countEven-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:39:01" (1/1) ... [2025-04-26 18:39:01,559 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "count0-countEven-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:39:01" (1/1) ... [2025-04-26 18:39:01,564 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "count0-countEven-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:39:01" (1/1) ... [2025-04-26 18:39:01,565 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "count0-countEven-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:39:01" (1/1) ... [2025-04-26 18:39:01,566 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "count0-countEven-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:39:01" (1/1) ... [2025-04-26 18:39:01,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 18:39:01,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 18:39:01,572 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 18:39:01,572 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 18:39:01,575 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "count0-countEven-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:39:01" (1/1) ... [2025-04-26 18:39:01,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:39:01,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:39:01,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-26 18:39:01,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-26 18:39:01,622 INFO L124 BoogieDeclarations]: Specification and implementation of procedure countEven given in one single declaration [2025-04-26 18:39:01,622 INFO L130 BoogieDeclarations]: Found specification of procedure countEven [2025-04-26 18:39:01,623 INFO L138 BoogieDeclarations]: Found implementation of procedure countEven [2025-04-26 18:39:01,623 INFO L124 BoogieDeclarations]: Specification and implementation of procedure countZero given in one single declaration [2025-04-26 18:39:01,623 INFO L130 BoogieDeclarations]: Found specification of procedure countZero [2025-04-26 18:39:01,623 INFO L138 BoogieDeclarations]: Found implementation of procedure countZero [2025-04-26 18:39:01,623 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 18:39:01,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 18:39:01,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 18:39:01,623 INFO L124 BoogieDeclarations]: Specification and implementation of procedure sample given in one single declaration [2025-04-26 18:39:01,623 INFO L130 BoogieDeclarations]: Found specification of procedure sample [2025-04-26 18:39:01,623 INFO L138 BoogieDeclarations]: Found implementation of procedure sample [2025-04-26 18:39:01,623 INFO L124 BoogieDeclarations]: Specification and implementation of procedure mapAbs given in one single declaration [2025-04-26 18:39:01,623 INFO L130 BoogieDeclarations]: Found specification of procedure mapAbs [2025-04-26 18:39:01,623 INFO L138 BoogieDeclarations]: Found implementation of procedure mapAbs [2025-04-26 18:39:01,624 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 18:39:01,663 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 18:39:01,664 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 18:39:01,759 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 18:39:01,759 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 18:39:01,768 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 18:39:01,768 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 18:39:01,769 INFO L201 PluginConnector]: Adding new model count0-countEven-sample-abs.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:39:01 BoogieIcfgContainer [2025-04-26 18:39:01,769 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 18:39:01,771 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 18:39:01,771 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 18:39:01,775 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 18:39:01,776 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:39:01,776 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "count0-countEven-sample-abs.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:39:01" (1/2) ... [2025-04-26 18:39:01,777 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71d64534 and model type count0-countEven-sample-abs.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 06:39:01, skipping insertion in model container [2025-04-26 18:39:01,777 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:39:01,777 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "count0-countEven-sample-abs.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:39:01" (2/2) ... [2025-04-26 18:39:01,778 INFO L376 chiAutomizerObserver]: Analyzing ICFG count0-countEven-sample-abs.bpl [2025-04-26 18:39:01,842 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-26 18:39:01,879 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 18:39:01,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 18:39:01,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:39:01,882 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-26 18:39:01,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-26 18:39:01,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 43 transitions, 108 flow [2025-04-26 18:39:01,969 INFO L116 PetriNetUnfolderBase]: 5/35 cut-off events. [2025-04-26 18:39:01,971 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-26 18:39:01,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 35 events. 5/35 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 89 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2025-04-26 18:39:01,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 43 transitions, 108 flow [2025-04-26 18:39:01,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 35 transitions, 88 flow [2025-04-26 18:39:01,978 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 43 places, 35 transitions, 88 flow [2025-04-26 18:39:01,978 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 35 transitions, 88 flow [2025-04-26 18:39:02,084 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1633 states, 1631 states have (on average 3.818516247700797) internal successors, (in total 6228), 1632 states have internal predecessors, (6228), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:39:02,089 INFO L171 actionProvider$Eager]: Constructed initial Büchi automaton abstraction (from Petri net) that has 1633 states, 1631 states have (on average 3.818516247700797) internal successors, (in total 6228), 1632 states have internal predecessors, (6228), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:39:02,092 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 18:39:02,269 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 750#[L49-2, countZeroEXIT, L77]true [2025-04-26 18:39:02,344 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 1766#[$Ultimate##0, L49-2, L79, L32-1, mapAbsFINAL]true [2025-04-26 18:39:02,346 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 1768#[$Ultimate##0, L49-2, L63, L79, L32-1]true [2025-04-26 18:39:02,347 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 2056#[$Ultimate##0, L49-2, L79, L34, L62-1]true [2025-04-26 18:39:02,349 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 816#[L49-2, L34, L77]true [2025-04-26 18:39:02,360 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 90#[L33-2, L76]true [2025-04-26 18:39:02,367 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 184#[$Ultimate##0, L49-2, L77]true [2025-04-26 18:39:02,368 WARN L140 AmpleReduction]: Number of pruned transitions: 2120 [2025-04-26 18:39:02,368 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 7 [2025-04-26 18:39:02,368 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 237 [2025-04-26 18:39:02,368 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:46 [2025-04-26 18:39:02,368 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:825 [2025-04-26 18:39:02,368 WARN L145 AmpleReduction]: Times succ was already a loop node:67 [2025-04-26 18:39:02,368 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:554 [2025-04-26 18:39:02,368 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 18:39:02,371 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 1102 states, 1100 states have (on average 1.9918181818181817) internal successors, (in total 2191), 1101 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:39:02,378 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 18:39:02,378 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 18:39:02,378 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 18:39:02,378 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 18:39:02,378 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 18:39:02,378 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 18:39:02,378 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 18:39:02,378 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 18:39:02,381 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 1102 states, 1100 states have (on average 1.9918181818181817) internal successors, (in total 2191), 1101 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:39:02,421 INFO L131 ngComponentsAnalysis]: Automaton has 124 accepting balls. 857 [2025-04-26 18:39:02,422 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:39:02,422 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:39:02,426 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 18:39:02,426 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:39:02,426 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 18:39:02,429 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 1102 states, 1100 states have (on average 1.9918181818181817) internal successors, (in total 2191), 1101 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:39:02,445 INFO L131 ngComponentsAnalysis]: Automaton has 124 accepting balls. 857 [2025-04-26 18:39:02,445 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:39:02,445 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:39:02,446 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 18:39:02,447 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:39:02,451 INFO L752 eck$LassoCheckResult]: Stem: "[118] $Ultimate##0-->$Ultimate##0: Formula: (= v_countZeroThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{countZeroThread1of1ForFork0_thidvar0=v_countZeroThread1of1ForFork0_thidvar0_2, countZeroThread1of1ForFork0_i1=v_countZeroThread1of1ForFork0_i1_16} AuxVars[] AssignedVars[countZeroThread1of1ForFork0_thidvar0, countZeroThread1of1ForFork0_i1]" "[99] $Ultimate##0-->L30: Formula: (= v_cntZero_1 0) InVars {} OutVars{cntZero=v_cntZero_1} AuxVars[] AssignedVars[cntZero]" "[100] L30-->L32-1: Formula: (= v_countZeroThread1of1ForFork0_i1_1 0) InVars {} OutVars{countZeroThread1of1ForFork0_i1=v_countZeroThread1of1ForFork0_i1_1} AuxVars[] AssignedVars[countZeroThread1of1ForFork0_i1]" [2025-04-26 18:39:02,451 INFO L754 eck$LassoCheckResult]: Loop: "[102] L32-1-->L33: Formula: (< v_countZeroThread1of1ForFork0_i1_5 v_N_4) InVars {countZeroThread1of1ForFork0_i1=v_countZeroThread1of1ForFork0_i1_5, N=v_N_4} OutVars{countZeroThread1of1ForFork0_i1=v_countZeroThread1of1ForFork0_i1_5, N=v_N_4} AuxVars[] AssignedVars[]" "[105] L33-->L33-2: Formula: (not (= (select v_A_4 v_countZeroThread1of1ForFork0_i1_9) 0)) InVars {A=v_A_4, countZeroThread1of1ForFork0_i1=v_countZeroThread1of1ForFork0_i1_9} OutVars{A=v_A_4, countZeroThread1of1ForFork0_i1=v_countZeroThread1of1ForFork0_i1_9} AuxVars[] AssignedVars[]" "[107] L33-2-->L32-1: Formula: (= v_countZeroThread1of1ForFork0_i1_12 (+ v_countZeroThread1of1ForFork0_i1_11 1)) InVars {countZeroThread1of1ForFork0_i1=v_countZeroThread1of1ForFork0_i1_11} OutVars{countZeroThread1of1ForFork0_i1=v_countZeroThread1of1ForFork0_i1_12} AuxVars[] AssignedVars[countZeroThread1of1ForFork0_i1]" [2025-04-26 18:39:02,454 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:39:02,455 INFO L85 PathProgramCache]: Analyzing trace with hash 146358, now seen corresponding path program 1 times [2025-04-26 18:39:02,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:39:02,459 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256280189] [2025-04-26 18:39:02,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:39:02,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:39:02,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:39:02,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:39:02,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:39:02,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:39:02,505 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:39:02,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:39:02,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:39:02,509 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:39:02,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:39:02,521 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:39:02,524 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:39:02,525 INFO L85 PathProgramCache]: Analyzing trace with hash 131175, now seen corresponding path program 1 times [2025-04-26 18:39:02,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:39:02,525 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474602807] [2025-04-26 18:39:02,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:39:02,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:39:02,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:39:02,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:39:02,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:39:02,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:39:02,537 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:39:02,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:39:02,542 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:39:02,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:39:02,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:39:02,546 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:39:02,547 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:39:02,547 INFO L85 PathProgramCache]: Analyzing trace with hash 65285266, now seen corresponding path program 1 times [2025-04-26 18:39:02,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:39:02,547 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889541694] [2025-04-26 18:39:02,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:39:02,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:39:02,554 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 18:39:02,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 18:39:02,560 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:39:02,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:39:02,560 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:39:02,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 18:39:02,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 18:39:02,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:39:02,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:39:02,570 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:39:02,637 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:39:02,638 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:39:02,638 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:39:02,638 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:39:02,638 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:39:02,638 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:39:02,638 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:39:02,638 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:39:02,638 INFO L132 ssoRankerPreferences]: Filename of dumped script: count0-countEven-sample-abs.bpl_petrified1_Iteration1_Lasso [2025-04-26 18:39:02,638 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:39:02,639 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:39:02,677 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:39:02,685 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:39:02,689 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:39:02,789 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:39:02,792 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:39:02,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:39:02,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:39:02,819 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:39:02,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-04-26 18:39:02,824 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 18:39:02,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:39:02,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:39:02,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:39:02,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:39:02,849 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 18:39:02,849 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 18:39:02,853 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:39:02,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-04-26 18:39:02,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:39:02,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:39:02,861 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:39:02,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-04-26 18:39:02,864 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 18:39:02,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:39:02,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:39:02,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:39:02,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:39:02,878 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 18:39:02,878 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 18:39:02,885 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:39:02,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-04-26 18:39:02,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:39:02,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:39:02,894 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:39:02,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-04-26 18:39:02,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 18:39:02,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:39:02,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:39:02,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:39:02,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:39:02,914 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 18:39:02,915 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 18:39:02,922 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:39:02,932 INFO L436 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2025-04-26 18:39:02,932 INFO L437 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2025-04-26 18:39:02,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:39:02,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:39:02,956 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 18:39:02,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-04-26 18:39:02,959 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:39:02,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-04-26 18:39:02,976 INFO L439 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2025-04-26 18:39:02,976 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:39:02,977 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(N, countZeroThread1of1ForFork0_i1) = 1*N - 1*countZeroThread1of1ForFork0_i1 Supporting invariants [] [2025-04-26 18:39:02,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-04-26 18:39:02,984 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:39:03,008 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:39:03,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:39:03,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:39:03,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:39:03,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:39:03,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:39:03,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:39:03,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:39:03,031 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:39:03,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:39:03,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:39:03,032 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:39:03,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:39:03,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 18:39:03,077 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 18:39:03,080 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 1102 states, 1100 states have (on average 1.9918181818181817) internal successors, (in total 2191), 1101 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:39:03,219 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 1102 states, 1100 states have (on average 1.9918181818181817) internal successors, (in total 2191), 1101 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 2448 states and 5383 transitions. Complement of second has 6 states. [2025-04-26 18:39:03,220 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 18:39:03,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:39:03,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 94 transitions. [2025-04-26 18:39:03,229 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 94 transitions. Stem has 3 letters. Loop has 3 letters. [2025-04-26 18:39:03,230 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:39:03,230 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 94 transitions. Stem has 6 letters. Loop has 3 letters. [2025-04-26 18:39:03,230 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:39:03,230 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 94 transitions. Stem has 3 letters. Loop has 6 letters. [2025-04-26 18:39:03,230 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:39:03,231 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2448 states and 5383 transitions. [2025-04-26 18:39:03,255 INFO L131 ngComponentsAnalysis]: Automaton has 74 accepting balls. 343 [2025-04-26 18:39:03,274 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2448 states to 1478 states and 3065 transitions. [2025-04-26 18:39:03,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 599 [2025-04-26 18:39:03,278 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 857 [2025-04-26 18:39:03,278 INFO L74 IsDeterministic]: Start isDeterministic. Operand 1478 states and 3065 transitions. [2025-04-26 18:39:03,279 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:39:03,279 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1478 states and 3065 transitions. [2025-04-26 18:39:03,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states and 3065 transitions. [2025-04-26 18:39:03,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1286. [2025-04-26 18:39:03,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1286 states have (on average 2.1166407465007775) internal successors, (in total 2722), 1285 states have internal predecessors, (2722), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 18:39:03,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 2722 transitions. [2025-04-26 18:39:03,353 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1286 states and 2722 transitions. [2025-04-26 18:39:03,353 INFO L438 stractBuchiCegarLoop]: Abstraction has 1286 states and 2722 transitions. [2025-04-26 18:39:03,353 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 18:39:03,353 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1286 states and 2722 transitions. [2025-04-26 18:39:03,359 INFO L131 ngComponentsAnalysis]: Automaton has 74 accepting balls. 343 [2025-04-26 18:39:03,359 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:39:03,359 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:39:03,359 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 18:39:03,360 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:39:03,360 INFO L752 eck$LassoCheckResult]: Stem: "[118] $Ultimate##0-->$Ultimate##0: Formula: (= v_countZeroThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{countZeroThread1of1ForFork0_thidvar0=v_countZeroThread1of1ForFork0_thidvar0_2, countZeroThread1of1ForFork0_i1=v_countZeroThread1of1ForFork0_i1_16} AuxVars[] AssignedVars[countZeroThread1of1ForFork0_thidvar0, countZeroThread1of1ForFork0_i1]" "[121] L76-->$Ultimate##0: Formula: (and (= 2 v_countEvenThread1of1ForFork1_thidvar0_2) (= 2 v_countEvenThread1of1ForFork1_thidvar1_2)) InVars {} OutVars{countEvenThread1of1ForFork1_thidvar1=v_countEvenThread1of1ForFork1_thidvar1_2, countEvenThread1of1ForFork1_i2=v_countEvenThread1of1ForFork1_i2_16, countEvenThread1of1ForFork1_thidvar0=v_countEvenThread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[countEvenThread1of1ForFork1_thidvar1, countEvenThread1of1ForFork1_i2, countEvenThread1of1ForFork1_thidvar0]" "[90] $Ultimate##0-->L46: Formula: (= v_cntEven_1 0) InVars {} OutVars{cntEven=v_cntEven_1} AuxVars[] AssignedVars[cntEven]" "[91] L46-->L48-1: Formula: (= v_countEvenThread1of1ForFork1_i2_1 0) InVars {} OutVars{countEvenThread1of1ForFork1_i2=v_countEvenThread1of1ForFork1_i2_1} AuxVars[] AssignedVars[countEvenThread1of1ForFork1_i2]" [2025-04-26 18:39:03,360 INFO L754 eck$LassoCheckResult]: Loop: "[93] L48-1-->L49: Formula: (< v_countEvenThread1of1ForFork1_i2_5 v_N_1) InVars {countEvenThread1of1ForFork1_i2=v_countEvenThread1of1ForFork1_i2_5, N=v_N_1} OutVars{countEvenThread1of1ForFork1_i2=v_countEvenThread1of1ForFork1_i2_5, N=v_N_1} AuxVars[] AssignedVars[]" "[96] L49-->L49-2: Formula: (not ((_ divisible 2) (select v_A_2 v_countEvenThread1of1ForFork1_i2_9))) InVars {A=v_A_2, countEvenThread1of1ForFork1_i2=v_countEvenThread1of1ForFork1_i2_9} OutVars{A=v_A_2, countEvenThread1of1ForFork1_i2=v_countEvenThread1of1ForFork1_i2_9} AuxVars[] AssignedVars[]" "[98] L49-2-->L48-1: Formula: (= (+ v_countEvenThread1of1ForFork1_i2_11 1) v_countEvenThread1of1ForFork1_i2_12) InVars {countEvenThread1of1ForFork1_i2=v_countEvenThread1of1ForFork1_i2_11} OutVars{countEvenThread1of1ForFork1_i2=v_countEvenThread1of1ForFork1_i2_12} AuxVars[] AssignedVars[countEvenThread1of1ForFork1_i2]" [2025-04-26 18:39:03,361 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:39:03,361 INFO L85 PathProgramCache]: Analyzing trace with hash 4558021, now seen corresponding path program 1 times [2025-04-26 18:39:03,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:39:03,361 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825881848] [2025-04-26 18:39:03,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:39:03,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:39:03,365 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:39:03,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:39:03,368 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:39:03,368 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:39:03,368 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:39:03,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 18:39:03,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 18:39:03,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:39:03,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:39:03,372 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:39:03,372 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:39:03,372 INFO L85 PathProgramCache]: Analyzing trace with hash 122238, now seen corresponding path program 1 times [2025-04-26 18:39:03,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:39:03,373 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381817099] [2025-04-26 18:39:03,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:39:03,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:39:03,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:39:03,377 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:39:03,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:39:03,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:39:03,377 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:39:03,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:39:03,379 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:39:03,381 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:39:03,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:39:03,382 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:39:03,383 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:39:03,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1650857414, now seen corresponding path program 1 times [2025-04-26 18:39:03,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:39:03,383 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073230819] [2025-04-26 18:39:03,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:39:03,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:39:03,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 18:39:03,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 18:39:03,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:39:03,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:39:03,390 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:39:03,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 18:39:03,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 18:39:03,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:39:03,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:39:03,396 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:39:03,443 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:39:03,443 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:39:03,444 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:39:03,444 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:39:03,444 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:39:03,444 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:39:03,444 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:39:03,444 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:39:03,444 INFO L132 ssoRankerPreferences]: Filename of dumped script: count0-countEven-sample-abs.bpl_petrified1_Iteration2_Lasso [2025-04-26 18:39:03,444 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:39:03,444 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:39:03,445 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:39:03,456 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:39:03,460 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:39:03,462 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:39:03,466 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:39:03,468 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true de.uni_freiburg.informatik.ultimate.lassoranker.exceptions.UnknownFunctionException: Unknown function symbol: not @term: (not ((_ divisible 2) |v_array_A[countEvenThread1of1ForFork1_i2]_3|)) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.InequalityConverter.convert(InequalityConverter.java:157) at de.uni_freiburg.informatik.ultimate.lassoranker.LinearTransition.fromTransFormulaLR(LinearTransition.java:204) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.constructPolyhedra(LassoBuilder.java:201) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:252) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:619) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:910) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:823) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:261) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.runCegarLoop(AbstractBuchiCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.runSingleCegarLoop(BuchiAutomizerObserver.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.runCegarLoops(BuchiAutomizerObserver.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:377) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-04-26 18:39:03,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-04-26 18:39:03,525 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: TermException de.uni_freiburg.informatik.ultimate.lassoranker.exceptions.UnknownFunctionException: Unknown function symbol: not @term: (not ((_ divisible 2) |v_array_A[countEvenThread1of1ForFork1_i2]_3|)) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:626) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:910) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:823) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:261) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.runCegarLoop(AbstractBuchiCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.runSingleCegarLoop(BuchiAutomizerObserver.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.runCegarLoops(BuchiAutomizerObserver.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:377) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-04-26 18:39:03,532 INFO L158 Benchmark]: Toolchain (without parser) took 2021.31ms. Allocated memory was 159.4MB in the beginning and 167.8MB in the end (delta: 8.4MB). Free memory was 87.4MB in the beginning and 46.7MB in the end (delta: 40.8MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. [2025-04-26 18:39:03,532 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.82ms. Allocated memory is still 159.4MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:39:03,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.58ms. Allocated memory is still 159.4MB. Free memory was 87.4MB in the beginning and 85.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:39:03,532 INFO L158 Benchmark]: Boogie Preprocessor took 22.33ms. Allocated memory is still 159.4MB. Free memory was 85.5MB in the beginning and 84.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:39:03,532 INFO L158 Benchmark]: RCFGBuilder took 196.82ms. Allocated memory is still 159.4MB. Free memory was 84.4MB in the beginning and 74.6MB in the end (delta: 9.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-26 18:39:03,533 INFO L158 Benchmark]: BuchiAutomizer took 1759.47ms. Allocated memory was 159.4MB in the beginning and 167.8MB in the end (delta: 8.4MB). Free memory was 74.6MB in the beginning and 46.7MB in the end (delta: 27.9MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. [2025-04-26 18:39:03,537 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.82ms. Allocated memory is still 159.4MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.58ms. Allocated memory is still 159.4MB. Free memory was 87.4MB in the beginning and 85.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 22.33ms. Allocated memory is still 159.4MB. Free memory was 85.5MB in the beginning and 84.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 196.82ms. Allocated memory is still 159.4MB. Free memory was 84.4MB in the beginning and 74.6MB in the end (delta: 9.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 1759.47ms. Allocated memory was 159.4MB in the beginning and 167.8MB in the end (delta: 8.4MB). Free memory was 74.6MB in the beginning and 46.7MB in the end (delta: 27.9MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: TermException de.uni_freiburg.informatik.ultimate.lassoranker.exceptions.UnknownFunctionException: Unknown function symbol: not @term: (not ((_ divisible 2) |v_array_A[countEvenThread1of1ForFork1_i2]_3|)) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: TermException de.uni_freiburg.informatik.ultimate.lassoranker.exceptions.UnknownFunctionException: Unknown function symbol: not @term: (not ((_ divisible 2) |v_array_A[countEvenThread1of1ForFork1_i2]_3|)): de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:626) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2025-04-26 18:39:03,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...