/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/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:55:03,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:55:03,842 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 16:55:03,848 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:55:03,848 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:55:03,848 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 16:55:03,848 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 16:55:03,865 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:55:03,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:55:03,865 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:55:03,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:55:03,866 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:55:03,866 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:55:03,866 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:55:03,866 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:55:03,866 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:55:03,866 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:55:03,866 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:55:03,866 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:55:03,866 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 16:55:03,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:55:03,866 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:55:03,867 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:55:03,867 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:55:03,867 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:55:03,867 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:55:03,867 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:55:03,867 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:55:03,867 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:55:03,867 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:55:03,867 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:55:03,867 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:55:03,867 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:55:03,867 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:55:03,867 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:55:03,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:55:03,867 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:55:03,867 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:55:03,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 16:55:03,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 16:55:03,868 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 16:55:03,868 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:55:03,868 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:55:04,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:55:04,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:55:04,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:55:04,131 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:55:04,132 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:55:04,133 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl [2025-04-26 16:55:04,135 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl' [2025-04-26 16:55:04,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:55:04,159 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:55:04,160 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:55:04,160 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:55:04,160 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:55:04,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:04" (1/1) ... [2025-04-26 16:55:04,191 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:04" (1/1) ... [2025-04-26 16:55:04,196 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:55:04,197 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:55:04,198 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:55:04,198 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:55:04,198 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:55:04,202 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:04" (1/1) ... [2025-04-26 16:55:04,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:04" (1/1) ... [2025-04-26 16:55:04,204 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:04" (1/1) ... [2025-04-26 16:55:04,204 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:04" (1/1) ... [2025-04-26 16:55:04,207 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:04" (1/1) ... [2025-04-26 16:55:04,208 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:04" (1/1) ... [2025-04-26 16:55:04,210 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:04" (1/1) ... [2025-04-26 16:55:04,213 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:04" (1/1) ... [2025-04-26 16:55:04,213 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:04" (1/1) ... [2025-04-26 16:55:04,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:55:04,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:55:04,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:55:04,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:55:04,227 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:04" (1/1) ... [2025-04-26 16:55:04,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:55:04,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:04,256 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 16:55:04,259 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 16:55:04,280 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:55:04,280 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:55:04,281 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:55:04,281 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:55:04,281 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:55:04,281 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:55:04,281 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:55:04,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:55:04,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:55:04,281 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:55:04,281 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:55:04,281 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:55:04,282 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-04-26 16:55:04,282 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-26 16:55:04,282 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-26 16:55:04,282 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-04-26 16:55:04,282 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-04-26 16:55:04,282 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-04-26 16:55:04,282 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2025-04-26 16:55:04,282 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-04-26 16:55:04,282 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-04-26 16:55:04,283 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 16:55:04,327 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:55:04,328 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:55:04,452 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:55:04,452 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:55:04,467 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:55:04,468 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2025-04-26 16:55:04,468 INFO L201 PluginConnector]: Adding new model barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:55:04 BoogieIcfgContainer [2025-04-26 16:55:04,468 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:55:04,471 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:55:04,471 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:55:04,476 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:55:04,476 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:55:04,476 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:04" (1/2) ... [2025-04-26 16:55:04,478 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2cee12d9 and model type barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:55:04, skipping insertion in model container [2025-04-26 16:55:04,478 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:55:04,478 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:55:04" (2/2) ... [2025-04-26 16:55:04,479 INFO L376 chiAutomizerObserver]: Analyzing ICFG barrier-loop.wvr.bpl [2025-04-26 16:55:04,563 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2025-04-26 16:55:04,596 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 16:55:04,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 16:55:04,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:04,598 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 16:55:04,600 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 16:55:04,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 79 transitions, 224 flow [2025-04-26 16:55:04,691 INFO L116 PetriNetUnfolderBase]: 8/61 cut-off events. [2025-04-26 16:55:04,695 INFO L117 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-04-26 16:55:04,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 61 events. 8/61 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 180 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 71. Up to 3 conditions per place. [2025-04-26 16:55:04,700 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 79 transitions, 224 flow [2025-04-26 16:55:04,705 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 61 transitions, 170 flow [2025-04-26 16:55:04,706 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 72 places, 61 transitions, 170 flow [2025-04-26 16:55:04,711 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 16:55:06,082 WARN L140 AmpleReduction]: Number of pruned transitions: 10247 [2025-04-26 16:55:06,083 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 0 [2025-04-26 16:55:06,083 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 0 [2025-04-26 16:55:06,083 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:1383 [2025-04-26 16:55:06,084 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:4677 [2025-04-26 16:55:06,084 WARN L145 AmpleReduction]: Times succ was already a loop node:1435 [2025-04-26 16:55:06,084 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:1067 [2025-04-26 16:55:06,084 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 16:55:06,107 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 6061 states, 6059 states have (on average 2.3215051988777025) internal successors, (in total 14066), 6060 states have internal predecessors, (14066), 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 16:55:06,113 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:55:06,113 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:55:06,113 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:55:06,113 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:55:06,113 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:55:06,113 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:55:06,114 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:55:06,114 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:55:06,128 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6061 states, 6059 states have (on average 2.3215051988777025) internal successors, (in total 14066), 6060 states have internal predecessors, (14066), 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 16:55:06,245 INFO L131 ngComponentsAnalysis]: Automaton has 28 accepting balls. 5092 [2025-04-26 16:55:06,246 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:06,246 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:06,250 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:55:06,250 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:55:06,250 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:55:06,262 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6061 states, 6059 states have (on average 2.3215051988777025) internal successors, (in total 14066), 6060 states have internal predecessors, (14066), 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 16:55:06,339 INFO L131 ngComponentsAnalysis]: Automaton has 28 accepting balls. 5092 [2025-04-26 16:55:06,339 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:06,339 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:06,339 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:55:06,339 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:55:06,363 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->L116: Formula: (and (= v_x_0_3 v_x_8_1) (= v_y_9_1 v_y_1_3)) InVars {y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} OutVars{y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} AuxVars[] AssignedVars[]" "[186] L116-->$Ultimate##0: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[130] $Ultimate##0-->L59: Formula: (and (not v_f1_2_6) (not v_f2_3_6)) InVars {} OutVars{f2_3=v_f2_3_6, f1_2=v_f1_2_6} AuxVars[] AssignedVars[f2_3, f1_2]" "[198] L59-->L29: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_4) (= 2 v_thread2Thread1of1ForFork0_thidvar1_4)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" [2025-04-26 16:55:06,363 INFO L754 eck$LassoCheckResult]: Loop: "[137] L29-->L31: Formula: (= v_x_0_1 v_temp_4_1) InVars {x_0=v_x_0_1} OutVars{temp_4=v_temp_4_1, x_0=v_x_0_1} AuxVars[] AssignedVars[temp_4]" "[138] L31-->L32: Formula: (= (+ v_temp_4_2 1) v_x_0_2) InVars {temp_4=v_temp_4_2} OutVars{temp_4=v_temp_4_2, x_0=v_x_0_2} AuxVars[] AssignedVars[x_0]" "[139] L32-->L33: Formula: v_f1_2_2 InVars {} OutVars{f1_2=v_f1_2_2} AuxVars[] AssignedVars[f1_2]" "[140] L33-->L34: Formula: v_f2_3_3 InVars {f2_3=v_f2_3_3} OutVars{f2_3=v_f2_3_3} AuxVars[] AssignedVars[]" "[141] L34-->L35: Formula: (= v_y_1_1 v_temp_5_1) InVars {y_1=v_y_1_1} OutVars{y_1=v_y_1_1, temp_5=v_temp_5_1} AuxVars[] AssignedVars[temp_5]" "[142] L35-->L36: Formula: (= (+ v_temp_5_2 1) v_y_1_2) InVars {temp_5=v_temp_5_2} OutVars{y_1=v_y_1_2, temp_5=v_temp_5_2} AuxVars[] AssignedVars[y_1]" "[143] L36-->L37: Formula: (not v_f1_2_3) InVars {} OutVars{f1_2=v_f1_2_3} AuxVars[] AssignedVars[f1_2]" "[144] L37-->L29: Formula: (not v_f2_3_2) InVars {f2_3=v_f2_3_2} OutVars{f2_3=v_f2_3_2} AuxVars[] AssignedVars[]" [2025-04-26 16:55:06,367 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:06,367 INFO L85 PathProgramCache]: Analyzing trace with hash 3996222, now seen corresponding path program 1 times [2025-04-26 16:55:06,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:06,372 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678212982] [2025-04-26 16:55:06,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:06,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:06,415 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:55:06,443 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:55:06,443 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:06,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:06,444 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:06,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:55:06,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:55:06,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:06,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:06,473 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:06,475 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:06,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1526064251, now seen corresponding path program 1 times [2025-04-26 16:55:06,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:06,476 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131166274] [2025-04-26 16:55:06,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:06,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:06,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:55:06,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:55:06,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:06,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:06,601 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 16:55:06,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:55:06,602 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131166274] [2025-04-26 16:55:06,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131166274] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:55:06,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:55:06,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 16:55:06,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25797095] [2025-04-26 16:55:06,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:55:06,610 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-04-26 16:55:06,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:55:06,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:55:06,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:55:06,649 INFO L87 Difference]: Start difference. First operand has 6061 states, 6059 states have (on average 2.3215051988777025) internal successors, (in total 14066), 6060 states have internal predecessors, (14066), 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, 2 states have (on average 4.0) internal successors, (in total 8), 3 states have internal predecessors, (8), 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 16:55:06,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:55:06,793 INFO L93 Difference]: Finished difference Result 7253 states and 16596 transitions. [2025-04-26 16:55:06,794 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7253 states and 16596 transitions. [2025-04-26 16:55:06,875 INFO L131 ngComponentsAnalysis]: Automaton has 36 accepting balls. 5694 [2025-04-26 16:55:06,964 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7253 states to 7151 states and 16389 transitions. [2025-04-26 16:55:06,965 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7151 [2025-04-26 16:55:06,984 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7151 [2025-04-26 16:55:06,985 INFO L74 IsDeterministic]: Start isDeterministic. Operand 7151 states and 16389 transitions. [2025-04-26 16:55:07,011 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:55:07,011 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7151 states and 16389 transitions. [2025-04-26 16:55:07,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7151 states and 16389 transitions. [2025-04-26 16:55:07,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7151 to 7151. [2025-04-26 16:55:07,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7151 states, 7151 states have (on average 2.2918472940847434) internal successors, (in total 16389), 7150 states have internal predecessors, (16389), 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 16:55:07,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7151 states to 7151 states and 16389 transitions. [2025-04-26 16:55:07,344 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7151 states and 16389 transitions. [2025-04-26 16:55:07,345 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:55:07,347 INFO L438 stractBuchiCegarLoop]: Abstraction has 7151 states and 16389 transitions. [2025-04-26 16:55:07,347 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:55:07,348 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7151 states and 16389 transitions. [2025-04-26 16:55:07,442 INFO L131 ngComponentsAnalysis]: Automaton has 36 accepting balls. 5694 [2025-04-26 16:55:07,443 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:07,443 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:07,443 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:55:07,443 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:55:07,444 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->L116: Formula: (and (= v_x_0_3 v_x_8_1) (= v_y_9_1 v_y_1_3)) InVars {y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} OutVars{y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} AuxVars[] AssignedVars[]" "[186] L116-->$Ultimate##0: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[130] $Ultimate##0-->L59: Formula: (and (not v_f1_2_6) (not v_f2_3_6)) InVars {} OutVars{f2_3=v_f2_3_6, f1_2=v_f1_2_6} AuxVars[] AssignedVars[f2_3, f1_2]" "[198] L59-->L29: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_4) (= 2 v_thread2Thread1of1ForFork0_thidvar1_4)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[201] L63-->L44: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_4) (= 3 v_thread3Thread1of1ForFork1_thidvar1_4) (= 3 v_thread3Thread1of1ForFork1_thidvar0_4)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2]" [2025-04-26 16:55:07,444 INFO L754 eck$LassoCheckResult]: Loop: "[146] L44-->L46: Formula: (= v_y_1_5 v_temp_6_1) InVars {y_1=v_y_1_5} OutVars{temp_6=v_temp_6_1, y_1=v_y_1_5} AuxVars[] AssignedVars[temp_6]" "[147] L46-->L47: Formula: (= (+ v_temp_6_2 1) v_y_1_6) InVars {temp_6=v_temp_6_2} OutVars{temp_6=v_temp_6_2, y_1=v_y_1_6} AuxVars[] AssignedVars[y_1]" "[148] L47-->L48: Formula: v_f2_3_4 InVars {} OutVars{f2_3=v_f2_3_4} AuxVars[] AssignedVars[f2_3]" "[149] L48-->L49: Formula: v_f1_2_4 InVars {f1_2=v_f1_2_4} OutVars{f1_2=v_f1_2_4} AuxVars[] AssignedVars[]" "[150] L49-->L50: Formula: (= v_x_0_5 v_temp_7_1) InVars {x_0=v_x_0_5} OutVars{temp_7=v_temp_7_1, x_0=v_x_0_5} AuxVars[] AssignedVars[temp_7]" "[151] L50-->L51: Formula: (= (+ v_temp_7_2 1) v_x_0_6) InVars {temp_7=v_temp_7_2} OutVars{temp_7=v_temp_7_2, x_0=v_x_0_6} AuxVars[] AssignedVars[x_0]" "[152] L51-->L52: Formula: (not v_f2_3_5) InVars {} OutVars{f2_3=v_f2_3_5} AuxVars[] AssignedVars[f2_3]" "[153] L52-->L44: Formula: (not v_f1_2_5) InVars {f1_2=v_f1_2_5} OutVars{f1_2=v_f1_2_5} AuxVars[] AssignedVars[]" [2025-04-26 16:55:07,444 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:07,444 INFO L85 PathProgramCache]: Analyzing trace with hash 123883083, now seen corresponding path program 1 times [2025-04-26 16:55:07,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:07,445 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880173451] [2025-04-26 16:55:07,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:07,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:07,448 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:07,449 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:07,449 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:07,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:07,449 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:07,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:07,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:07,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:07,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:07,454 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:07,454 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:07,454 INFO L85 PathProgramCache]: Analyzing trace with hash 938176517, now seen corresponding path program 1 times [2025-04-26 16:55:07,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:07,454 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459047266] [2025-04-26 16:55:07,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:07,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:07,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:55:07,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:55:07,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:07,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:07,469 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 16:55:07,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:55:07,469 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459047266] [2025-04-26 16:55:07,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459047266] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:55:07,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:55:07,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 16:55:07,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801858859] [2025-04-26 16:55:07,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:55:07,470 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-04-26 16:55:07,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:55:07,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:55:07,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:55:07,470 INFO L87 Difference]: Start difference. First operand 7151 states and 16389 transitions. cyclomatic complexity: 9274 Second operand has 3 states, 2 states have (on average 4.0) internal successors, (in total 8), 3 states have internal predecessors, (8), 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 16:55:07,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:55:07,583 INFO L93 Difference]: Finished difference Result 6705 states and 14672 transitions. [2025-04-26 16:55:07,584 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6705 states and 14672 transitions. [2025-04-26 16:55:07,637 INFO L131 ngComponentsAnalysis]: Automaton has 40 accepting balls. 5152 [2025-04-26 16:55:07,693 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6705 states to 6543 states and 14456 transitions. [2025-04-26 16:55:07,693 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6543 [2025-04-26 16:55:07,703 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6543 [2025-04-26 16:55:07,703 INFO L74 IsDeterministic]: Start isDeterministic. Operand 6543 states and 14456 transitions. [2025-04-26 16:55:07,715 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:55:07,715 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6543 states and 14456 transitions. [2025-04-26 16:55:07,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6543 states and 14456 transitions. [2025-04-26 16:55:07,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6543 to 6543. [2025-04-26 16:55:07,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6543 states have (on average 2.2093840745835243) internal successors, (in total 14456), 6542 states have internal predecessors, (14456), 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 16:55:07,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 14456 transitions. [2025-04-26 16:55:07,898 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6543 states and 14456 transitions. [2025-04-26 16:55:07,899 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:55:07,899 INFO L438 stractBuchiCegarLoop]: Abstraction has 6543 states and 14456 transitions. [2025-04-26 16:55:07,899 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:55:07,899 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6543 states and 14456 transitions. [2025-04-26 16:55:07,929 INFO L131 ngComponentsAnalysis]: Automaton has 40 accepting balls. 5152 [2025-04-26 16:55:07,929 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:07,930 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:07,930 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:55:07,930 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:55:07,930 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->L116: Formula: (and (= v_x_0_3 v_x_8_1) (= v_y_9_1 v_y_1_3)) InVars {y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} OutVars{y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} AuxVars[] AssignedVars[]" "[186] L116-->$Ultimate##0: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[130] $Ultimate##0-->L59: Formula: (and (not v_f1_2_6) (not v_f2_3_6)) InVars {} OutVars{f2_3=v_f2_3_6, f1_2=v_f1_2_6} AuxVars[] AssignedVars[f2_3, f1_2]" "[198] L59-->L29: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_4) (= 2 v_thread2Thread1of1ForFork0_thidvar1_4)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[201] L63-->L44: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_4) (= 3 v_thread3Thread1of1ForFork1_thidvar1_4) (= 3 v_thread3Thread1of1ForFork1_thidvar0_4)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2]" [2025-04-26 16:55:07,931 INFO L754 eck$LassoCheckResult]: Loop: "[137] L29-->L31: Formula: (= v_x_0_1 v_temp_4_1) InVars {x_0=v_x_0_1} OutVars{temp_4=v_temp_4_1, x_0=v_x_0_1} AuxVars[] AssignedVars[temp_4]" "[146] L44-->L46: Formula: (= v_y_1_5 v_temp_6_1) InVars {y_1=v_y_1_5} OutVars{temp_6=v_temp_6_1, y_1=v_y_1_5} AuxVars[] AssignedVars[temp_6]" "[138] L31-->L32: Formula: (= (+ v_temp_4_2 1) v_x_0_2) InVars {temp_4=v_temp_4_2} OutVars{temp_4=v_temp_4_2, x_0=v_x_0_2} AuxVars[] AssignedVars[x_0]" "[139] L32-->L33: Formula: v_f1_2_2 InVars {} OutVars{f1_2=v_f1_2_2} AuxVars[] AssignedVars[f1_2]" "[140] L33-->L34: Formula: v_f2_3_3 InVars {f2_3=v_f2_3_3} OutVars{f2_3=v_f2_3_3} AuxVars[] AssignedVars[]" "[141] L34-->L35: Formula: (= v_y_1_1 v_temp_5_1) InVars {y_1=v_y_1_1} OutVars{y_1=v_y_1_1, temp_5=v_temp_5_1} AuxVars[] AssignedVars[temp_5]" "[147] L46-->L47: Formula: (= (+ v_temp_6_2 1) v_y_1_6) InVars {temp_6=v_temp_6_2} OutVars{temp_6=v_temp_6_2, y_1=v_y_1_6} AuxVars[] AssignedVars[y_1]" "[142] L35-->L36: Formula: (= (+ v_temp_5_2 1) v_y_1_2) InVars {temp_5=v_temp_5_2} OutVars{y_1=v_y_1_2, temp_5=v_temp_5_2} AuxVars[] AssignedVars[y_1]" "[148] L47-->L48: Formula: v_f2_3_4 InVars {} OutVars{f2_3=v_f2_3_4} AuxVars[] AssignedVars[f2_3]" "[149] L48-->L49: Formula: v_f1_2_4 InVars {f1_2=v_f1_2_4} OutVars{f1_2=v_f1_2_4} AuxVars[] AssignedVars[]" "[143] L36-->L37: Formula: (not v_f1_2_3) InVars {} OutVars{f1_2=v_f1_2_3} AuxVars[] AssignedVars[f1_2]" "[150] L49-->L50: Formula: (= v_x_0_5 v_temp_7_1) InVars {x_0=v_x_0_5} OutVars{temp_7=v_temp_7_1, x_0=v_x_0_5} AuxVars[] AssignedVars[temp_7]" "[151] L50-->L51: Formula: (= (+ v_temp_7_2 1) v_x_0_6) InVars {temp_7=v_temp_7_2} OutVars{temp_7=v_temp_7_2, x_0=v_x_0_6} AuxVars[] AssignedVars[x_0]" "[152] L51-->L52: Formula: (not v_f2_3_5) InVars {} OutVars{f2_3=v_f2_3_5} AuxVars[] AssignedVars[f2_3]" "[144] L37-->L29: Formula: (not v_f2_3_2) InVars {f2_3=v_f2_3_2} OutVars{f2_3=v_f2_3_2} AuxVars[] AssignedVars[]" "[153] L52-->L44: Formula: (not v_f1_2_5) InVars {f1_2=v_f1_2_5} OutVars{f1_2=v_f1_2_5} AuxVars[] AssignedVars[]" [2025-04-26 16:55:07,931 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:07,931 INFO L85 PathProgramCache]: Analyzing trace with hash 123883083, now seen corresponding path program 2 times [2025-04-26 16:55:07,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:07,931 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223448021] [2025-04-26 16:55:07,931 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:55:07,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:07,934 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:07,935 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:07,935 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:55:07,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:07,935 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:07,936 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:07,937 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:07,938 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:07,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:07,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:07,939 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:07,940 INFO L85 PathProgramCache]: Analyzing trace with hash 428473241, now seen corresponding path program 1 times [2025-04-26 16:55:07,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:07,940 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949967651] [2025-04-26 16:55:07,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:07,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:07,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-26 16:55:07,958 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-26 16:55:07,958 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:07,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:07,958 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:07,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-26 16:55:07,966 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-26 16:55:07,966 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:07,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:07,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:07,973 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:07,974 INFO L85 PathProgramCache]: Analyzing trace with hash 799700451, now seen corresponding path program 1 times [2025-04-26 16:55:07,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:07,974 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737869662] [2025-04-26 16:55:07,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:07,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:07,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-26 16:55:07,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-26 16:55:07,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:07,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:07,995 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 16:55:07,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:55:07,995 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737869662] [2025-04-26 16:55:07,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737869662] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:55:07,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:55:07,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-26 16:55:07,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031539677] [2025-04-26 16:55:07,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:55:08,098 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:08,099 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:08,099 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:08,099 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:08,099 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:55:08,099 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:08,099 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:08,099 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:08,099 INFO L132 ssoRankerPreferences]: Filename of dumped script: barrier-loop.wvr.bpl_petrified1_Iteration3_Loop [2025-04-26 16:55:08,100 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:08,100 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:08,112 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:08,125 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:08,133 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:08,136 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:08,202 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:08,203 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:55:08,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:08,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:08,209 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 16:55:08,212 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 16:55:08,215 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:08,215 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:08,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:08,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:08,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:08,245 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 16:55:08,246 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 16:55:08,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:08,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:08,431 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:08,431 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {temp_6=-1, y_1=0, temp_5=-1} Honda state: {temp_6=-1, y_1=0, temp_5=-1} Generalized eigenvectors: [{temp_6=-1, y_1=-1, temp_5=-1}, {temp_6=2, y_1=2, temp_5=2}, {temp_6=0, y_1=0, temp_5=0}] Lambdas: [3, 1, 2] Nus: [1, 1] [2025-04-26 16:55:08,440 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 16:55:08,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:08,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:08,548 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 16:55:08,549 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 16:55:08,550 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:08,550 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:08,581 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 16:55:08,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:08,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:08,586 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 16:55:08,587 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 16:55:08,588 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:08,588 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:08,915 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:08,916 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {temp_4=-26, temp_7=0, x_0=-22} Honda state: {temp_4=-26, temp_7=0, x_0=-22} Generalized eigenvectors: [{temp_4=0, temp_7=-25, x_0=-2}, {temp_4=-2, temp_7=73, x_0=4}, {temp_4=6, temp_7=-69, x_0=0}] Lambdas: [3, 1, 0] Nus: [1, 1] [2025-04-26 16:55:08,926 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 16:55:08,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:08,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:08,930 INFO L229 MonitoredProcess]: Starting monitored process 7 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 16:55:08,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-04-26 16:55:08,937 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:08,937 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:08,954 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:08,954 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite f1_2 1 0)_1=0} Honda state: {v_rep(ite f1_2 1 0)_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:55:08,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-04-26 16:55:08,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:08,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:08,963 INFO L229 MonitoredProcess]: Starting monitored process 8 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 16:55:08,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-04-26 16:55:08,964 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:08,965 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:08,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-04-26 16:55:08,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:08,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:08,991 INFO L229 MonitoredProcess]: Starting monitored process 9 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 16:55:08,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-04-26 16:55:08,992 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:08,992 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:09,016 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:55:09,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:09,021 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:09,021 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:09,021 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:09,021 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:09,021 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:55:09,021 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:09,022 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:09,022 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:09,022 INFO L132 ssoRankerPreferences]: Filename of dumped script: barrier-loop.wvr.bpl_petrified1_Iteration3_Loop [2025-04-26 16:55:09,022 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:09,022 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:09,023 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:09,030 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:09,038 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:09,043 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:09,095 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:09,099 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:55:09,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:09,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:09,101 INFO L229 MonitoredProcess]: Starting monitored process 10 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 16:55:09,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-04-26 16:55:09,104 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 16:55:09,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:09,115 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:55:09,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:09,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:09,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:09,119 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:55:09,119 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:55:09,122 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:09,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:09,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:09,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:09,130 INFO L229 MonitoredProcess]: Starting monitored process 11 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 16:55:09,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-04-26 16:55:09,132 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 16:55:09,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:09,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:55:09,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:09,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:09,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:09,144 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:55:09,144 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:55:09,146 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:09,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-04-26 16:55:09,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:09,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:09,154 INFO L229 MonitoredProcess]: Starting monitored process 12 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 16:55:09,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-04-26 16:55:09,157 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 16:55:09,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:09,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:55:09,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:09,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:09,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:09,168 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:55:09,168 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:55:09,170 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:55:09,173 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:55:09,173 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:55:09,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:09,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:09,176 INFO L229 MonitoredProcess]: Starting monitored process 13 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 16:55:09,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-04-26 16:55:09,179 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:55:09,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:09,183 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:55:09,183 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:55:09,183 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(ite f2_3 1 0)_2) = 1*v_rep(ite f2_3 1 0)_2 Supporting invariants [] [2025-04-26 16:55:09,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-04-26 16:55:09,227 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:55:09,248 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:09,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:09,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:09,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:09,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:09,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:55:09,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:09,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-26 16:55:09,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-26 16:55:09,285 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:09,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:09,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:55:09,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:09,384 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 16:55:09,388 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-04-26 16:55:09,389 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6543 states and 14456 transitions. cyclomatic complexity: 7953 Second operand has 5 states, 5 states have (on average 4.2) internal successors, (in total 21), 5 states have internal predecessors, (21), 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 16:55:09,711 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6543 states and 14456 transitions. cyclomatic complexity: 7953. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (in total 21), 5 states have internal predecessors, (21), 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 19263 states and 43778 transitions. Complement of second has 7 states. [2025-04-26 16:55:09,716 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 16:55:09,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.2) internal successors, (in total 21), 5 states have internal predecessors, (21), 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 16:55:09,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 157 transitions. [2025-04-26 16:55:09,724 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 157 transitions. Stem has 5 letters. Loop has 16 letters. [2025-04-26 16:55:09,725 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:09,725 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 157 transitions. Stem has 21 letters. Loop has 16 letters. [2025-04-26 16:55:09,725 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:09,726 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 157 transitions. Stem has 5 letters. Loop has 32 letters. [2025-04-26 16:55:09,726 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:09,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19263 states and 43778 transitions. [2025-04-26 16:55:09,945 INFO L131 ngComponentsAnalysis]: Automaton has 184 accepting balls. 8320 [2025-04-26 16:55:10,081 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19263 states to 17213 states and 39048 transitions. [2025-04-26 16:55:10,082 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12221 [2025-04-26 16:55:10,106 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13201 [2025-04-26 16:55:10,106 INFO L74 IsDeterministic]: Start isDeterministic. Operand 17213 states and 39048 transitions. [2025-04-26 16:55:10,106 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:55:10,106 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17213 states and 39048 transitions. [2025-04-26 16:55:10,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17213 states and 39048 transitions. [2025-04-26 16:55:10,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17213 to 14197. [2025-04-26 16:55:10,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14197 states, 14197 states have (on average 2.270831865887159) internal successors, (in total 32239), 14196 states have internal predecessors, (32239), 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 16:55:10,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14197 states to 14197 states and 32239 transitions. [2025-04-26 16:55:10,459 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14197 states and 32239 transitions. [2025-04-26 16:55:10,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:55:10,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:55:10,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:55:10,460 INFO L87 Difference]: Start difference. First operand 14197 states and 32239 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (in total 21), 3 states have internal predecessors, (21), 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 16:55:10,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:55:10,525 INFO L93 Difference]: Finished difference Result 6861 states and 15597 transitions. [2025-04-26 16:55:10,525 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6861 states and 15597 transitions. [2025-04-26 16:55:10,611 INFO L131 ngComponentsAnalysis]: Automaton has 58 accepting balls. 4294 [2025-04-26 16:55:10,636 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6861 states to 5902 states and 13126 transitions. [2025-04-26 16:55:10,637 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5902 [2025-04-26 16:55:10,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5902 [2025-04-26 16:55:10,646 INFO L74 IsDeterministic]: Start isDeterministic. Operand 5902 states and 13126 transitions. [2025-04-26 16:55:10,656 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:55:10,656 INFO L218 hiAutomatonCegarLoop]: Abstraction has 5902 states and 13126 transitions. [2025-04-26 16:55:10,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5902 states and 13126 transitions. [2025-04-26 16:55:10,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5902 to 4989. [2025-04-26 16:55:10,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4989 states, 4989 states have (on average 2.175786730807777) internal successors, (in total 10855), 4988 states have internal predecessors, (10855), 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 16:55:10,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4989 states to 4989 states and 10855 transitions. [2025-04-26 16:55:10,728 INFO L240 hiAutomatonCegarLoop]: Abstraction has 4989 states and 10855 transitions. [2025-04-26 16:55:10,729 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:55:10,729 INFO L438 stractBuchiCegarLoop]: Abstraction has 4989 states and 10855 transitions. [2025-04-26 16:55:10,729 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:55:10,729 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4989 states and 10855 transitions. [2025-04-26 16:55:10,745 INFO L131 ngComponentsAnalysis]: Automaton has 34 accepting balls. 3766 [2025-04-26 16:55:10,746 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:10,746 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:10,746 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:55:10,746 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:55:10,746 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->L116: Formula: (and (= v_x_0_3 v_x_8_1) (= v_y_9_1 v_y_1_3)) InVars {y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} OutVars{y_9=v_y_9_1, y_1=v_y_1_3, x_8=v_x_8_1, x_0=v_x_0_3} AuxVars[] AssignedVars[]" "[186] L116-->$Ultimate##0: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[130] $Ultimate##0-->L59: Formula: (and (not v_f1_2_6) (not v_f2_3_6)) InVars {} OutVars{f2_3=v_f2_3_6, f1_2=v_f1_2_6} AuxVars[] AssignedVars[f2_3, f1_2]" "[198] L59-->L29: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_4) (= 2 v_thread2Thread1of1ForFork0_thidvar1_4)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[201] L63-->L44: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_4) (= 3 v_thread3Thread1of1ForFork1_thidvar1_4) (= 3 v_thread3Thread1of1ForFork1_thidvar0_4)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2]" [2025-04-26 16:55:10,747 INFO L754 eck$LassoCheckResult]: Loop: "[146] L44-->L46: Formula: (= v_y_1_5 v_temp_6_1) InVars {y_1=v_y_1_5} OutVars{temp_6=v_temp_6_1, y_1=v_y_1_5} AuxVars[] AssignedVars[temp_6]" "[137] L29-->L31: Formula: (= v_x_0_1 v_temp_4_1) InVars {x_0=v_x_0_1} OutVars{temp_4=v_temp_4_1, x_0=v_x_0_1} AuxVars[] AssignedVars[temp_4]" "[147] L46-->L47: Formula: (= (+ v_temp_6_2 1) v_y_1_6) InVars {temp_6=v_temp_6_2} OutVars{temp_6=v_temp_6_2, y_1=v_y_1_6} AuxVars[] AssignedVars[y_1]" "[138] L31-->L32: Formula: (= (+ v_temp_4_2 1) v_x_0_2) InVars {temp_4=v_temp_4_2} OutVars{temp_4=v_temp_4_2, x_0=v_x_0_2} AuxVars[] AssignedVars[x_0]" "[148] L47-->L48: Formula: v_f2_3_4 InVars {} OutVars{f2_3=v_f2_3_4} AuxVars[] AssignedVars[f2_3]" "[139] L32-->L33: Formula: v_f1_2_2 InVars {} OutVars{f1_2=v_f1_2_2} AuxVars[] AssignedVars[f1_2]" "[140] L33-->L34: Formula: v_f2_3_3 InVars {f2_3=v_f2_3_3} OutVars{f2_3=v_f2_3_3} AuxVars[] AssignedVars[]" "[141] L34-->L35: Formula: (= v_y_1_1 v_temp_5_1) InVars {y_1=v_y_1_1} OutVars{y_1=v_y_1_1, temp_5=v_temp_5_1} AuxVars[] AssignedVars[temp_5]" "[142] L35-->L36: Formula: (= (+ v_temp_5_2 1) v_y_1_2) InVars {temp_5=v_temp_5_2} OutVars{y_1=v_y_1_2, temp_5=v_temp_5_2} AuxVars[] AssignedVars[y_1]" "[149] L48-->L49: Formula: v_f1_2_4 InVars {f1_2=v_f1_2_4} OutVars{f1_2=v_f1_2_4} AuxVars[] AssignedVars[]" "[143] L36-->L37: Formula: (not v_f1_2_3) InVars {} OutVars{f1_2=v_f1_2_3} AuxVars[] AssignedVars[f1_2]" "[150] L49-->L50: Formula: (= v_x_0_5 v_temp_7_1) InVars {x_0=v_x_0_5} OutVars{temp_7=v_temp_7_1, x_0=v_x_0_5} AuxVars[] AssignedVars[temp_7]" "[151] L50-->L51: Formula: (= (+ v_temp_7_2 1) v_x_0_6) InVars {temp_7=v_temp_7_2} OutVars{temp_7=v_temp_7_2, x_0=v_x_0_6} AuxVars[] AssignedVars[x_0]" "[152] L51-->L52: Formula: (not v_f2_3_5) InVars {} OutVars{f2_3=v_f2_3_5} AuxVars[] AssignedVars[f2_3]" "[153] L52-->L44: Formula: (not v_f1_2_5) InVars {f1_2=v_f1_2_5} OutVars{f1_2=v_f1_2_5} AuxVars[] AssignedVars[]" "[144] L37-->L29: Formula: (not v_f2_3_2) InVars {f2_3=v_f2_3_2} OutVars{f2_3=v_f2_3_2} AuxVars[] AssignedVars[]" [2025-04-26 16:55:10,747 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:10,747 INFO L85 PathProgramCache]: Analyzing trace with hash 123883083, now seen corresponding path program 3 times [2025-04-26 16:55:10,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:10,747 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514328573] [2025-04-26 16:55:10,747 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-26 16:55:10,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:10,751 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:10,752 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:10,752 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-26 16:55:10,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:10,752 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:10,753 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:10,754 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:10,754 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:10,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:10,755 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:10,755 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:10,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1131630253, now seen corresponding path program 2 times [2025-04-26 16:55:10,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:10,755 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242621037] [2025-04-26 16:55:10,755 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:55:10,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:10,757 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 1 equivalence classes. [2025-04-26 16:55:10,759 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-26 16:55:10,759 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:55:10,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:10,759 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:10,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-26 16:55:10,762 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-26 16:55:10,762 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:10,762 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:10,763 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:10,764 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:10,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1502857463, now seen corresponding path program 2 times [2025-04-26 16:55:10,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:10,764 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552976670] [2025-04-26 16:55:10,764 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:55:10,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:10,766 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 1 equivalence classes. [2025-04-26 16:55:10,768 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-26 16:55:10,768 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:55:10,768 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:10,768 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:10,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-26 16:55:10,772 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-26 16:55:10,772 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:10,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:10,774 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:10,823 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:10,823 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:10,823 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:10,823 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:10,823 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:55:10,823 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:10,823 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:10,823 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:10,823 INFO L132 ssoRankerPreferences]: Filename of dumped script: barrier-loop.wvr.bpl_petrified1_Iteration4_Loop [2025-04-26 16:55:10,823 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:10,823 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:10,824 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:10,827 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:10,831 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:10,836 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:10,880 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:10,881 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:55:10,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:10,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:10,887 INFO L229 MonitoredProcess]: Starting monitored process 14 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 16:55:10,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-04-26 16:55:10,888 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:10,888 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:10,907 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:10,907 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite f1_2 1 0)_3=0} Honda state: {v_rep(ite f1_2 1 0)_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:55:10,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-04-26 16:55:10,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:10,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:10,914 INFO L229 MonitoredProcess]: Starting monitored process 15 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 16:55:10,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-04-26 16:55:10,916 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:10,916 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:10,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-04-26 16:55:10,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:10,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:10,948 INFO L229 MonitoredProcess]: Starting monitored process 16 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 16:55:10,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-04-26 16:55:10,950 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:10,951 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:11,192 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:11,192 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {temp_6=2, y_1=0, temp_5=1} Honda state: {temp_6=2, y_1=0, temp_5=1} Generalized eigenvectors: [{temp_6=-2, y_1=2, temp_5=0}, {temp_6=4, y_1=0, temp_5=2}, {temp_6=-4, y_1=0, temp_5=-2}] Lambdas: [1, 1, 0] Nus: [1, 1] [2025-04-26 16:55:11,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-04-26 16:55:11,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:11,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:11,203 INFO L229 MonitoredProcess]: Starting monitored process 17 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 16:55:11,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-04-26 16:55:11,205 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:11,205 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:11,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-04-26 16:55:11,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:11,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:11,232 INFO L229 MonitoredProcess]: Starting monitored process 18 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 16:55:11,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-04-26 16:55:11,234 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:11,234 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:11,527 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:11,527 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {temp_4=-26, temp_7=0, x_0=-22} Honda state: {temp_4=-26, temp_7=0, x_0=-22} Generalized eigenvectors: [{temp_4=0, temp_7=-25, x_0=-2}, {temp_4=-2, temp_7=73, x_0=4}, {temp_4=6, temp_7=-69, x_0=0}] Lambdas: [3, 1, 0] Nus: [1, 1] [2025-04-26 16:55:11,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:11,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:11,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:11,537 INFO L229 MonitoredProcess]: Starting monitored process 19 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 16:55:11,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-04-26 16:55:11,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:11,539 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:11,558 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:11,558 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite f2_3 1 0)_3=0} Honda state: {v_rep(ite f2_3 1 0)_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:55:11,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-04-26 16:55:11,626 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:11,626 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:11,626 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:11,626 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:11,626 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:55:11,626 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:11,626 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:11,626 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:11,626 INFO L132 ssoRankerPreferences]: Filename of dumped script: barrier-loop.wvr.bpl_petrified1_Iteration4_Lasso [2025-04-26 16:55:11,626 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:11,626 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:11,627 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:11,632 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:11,634 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:11,641 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:11,644 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:11,646 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:11,648 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:11,650 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:11,656 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:11,658 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:11,760 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:11,760 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:55:11,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:11,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:11,765 INFO L229 MonitoredProcess]: Starting monitored process 20 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 16:55:11,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-04-26 16:55:11,768 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:11,768 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:11,789 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:11,789 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite f2_3 1 0)_4=0} Honda state: {v_rep(ite f2_3 1 0)_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:55:11,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-04-26 16:55:11,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:11,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:11,799 INFO L229 MonitoredProcess]: Starting monitored process 21 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 16:55:11,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-04-26 16:55:11,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:11,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:11,814 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:11,815 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork2_thidvar0=0} Honda state: {thread1Thread1of1ForFork2_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:55:11,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-04-26 16:55:11,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:11,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:11,823 INFO L229 MonitoredProcess]: Starting monitored process 22 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 16:55:11,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-04-26 16:55:11,826 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:11,826 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:11,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:11,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:11,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:11,857 INFO L229 MonitoredProcess]: Starting monitored process 23 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 16:55:11,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-04-26 16:55:11,861 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:11,861 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:12,117 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:12,117 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {y_1=0, y_9=0, temp_6=-2, temp_5=-9} Honda state: {y_1=0, y_9=0, temp_6=-2, temp_5=-9} Generalized eigenvectors: [{y_1=2, y_9=0, temp_6=2, temp_5=3}, {y_1=0, y_9=0, temp_6=0, temp_5=-1}, {y_1=0, y_9=0, temp_6=0, temp_5=8}] Lambdas: [1, 8, 0] Nus: [1, 1] [2025-04-26 16:55:12,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-04-26 16:55:12,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:12,128 INFO L229 MonitoredProcess]: Starting monitored process 24 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 16:55:12,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-04-26 16:55:12,131 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:12,131 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:12,142 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:12,142 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork1_thidvar0=0} Honda state: {thread3Thread1of1ForFork1_thidvar0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:55:12,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2025-04-26 16:55:12,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:12,152 INFO L229 MonitoredProcess]: Starting monitored process 25 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 16:55:12,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-04-26 16:55:12,154 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:12,154 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:12,165 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:12,165 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork1_thidvar1=0} Honda state: {thread3Thread1of1ForFork1_thidvar1=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:55:12,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-04-26 16:55:12,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:12,173 INFO L229 MonitoredProcess]: Starting monitored process 26 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 16:55:12,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-04-26 16:55:12,175 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:12,175 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:12,187 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:12,188 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_thidvar0=0} Honda state: {thread2Thread1of1ForFork0_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:55:12,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2025-04-26 16:55:12,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:12,195 INFO L229 MonitoredProcess]: Starting monitored process 27 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 16:55:12,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-04-26 16:55:12,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:12,197 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:12,211 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:12,211 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork0_thidvar1=0} Honda state: {thread2Thread1of1ForFork0_thidvar1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:55:12,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2025-04-26 16:55:12,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:12,223 INFO L229 MonitoredProcess]: Starting monitored process 28 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 16:55:12,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-04-26 16:55:12,226 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:12,226 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:12,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:12,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:12,258 INFO L229 MonitoredProcess]: Starting monitored process 29 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 16:55:12,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-04-26 16:55:12,260 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:12,260 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:12,498 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:12,498 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {temp_4=-1, temp_7=-2, x_8=0, x_0=0} Honda state: {temp_4=-1, temp_7=-2, x_8=0, x_0=0} Generalized eigenvectors: [{temp_4=0, temp_7=2, x_8=-1, x_0=1}, {temp_4=1, temp_7=1, x_8=-1, x_0=1}, {temp_4=0, temp_7=0, x_8=2, x_0=0}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-04-26 16:55:12,507 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2025-04-26 16:55:12,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:12,509 INFO L229 MonitoredProcess]: Starting monitored process 30 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 16:55:12,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2025-04-26 16:55:12,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:12,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:12,528 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:12,528 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite f1_2 1 0)_4=0} Honda state: {v_rep(ite f1_2 1 0)_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:55:12,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:12,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:12,537 INFO L229 MonitoredProcess]: Starting monitored process 31 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 16:55:12,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2025-04-26 16:55:12,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:12,539 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:12,550 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:12,550 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork1_thidvar2=0} Honda state: {thread3Thread1of1ForFork1_thidvar2=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:55:12,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2025-04-26 16:55:12,567 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 16:55:12,583 INFO L201 PluginConnector]: Adding new model barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:55:12 BoogieIcfgContainer [2025-04-26 16:55:12,583 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:55:12,583 INFO L158 Benchmark]: Toolchain (without parser) took 8424.72ms. Allocated memory was 159.4MB in the beginning and 461.4MB in the end (delta: 302.0MB). Free memory was 86.0MB in the beginning and 134.4MB in the end (delta: -48.3MB). Peak memory consumption was 258.7MB. Max. memory is 8.0GB. [2025-04-26 16:55:12,584 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.79ms. Allocated memory is still 159.4MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:55:12,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.04ms. Allocated memory is still 159.4MB. Free memory was 86.0MB in the beginning and 84.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:55:12,584 INFO L158 Benchmark]: Boogie Preprocessor took 24.79ms. Allocated memory is still 159.4MB. Free memory was 84.2MB in the beginning and 83.1MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:55:12,584 INFO L158 Benchmark]: RCFGBuilder took 245.15ms. Allocated memory is still 159.4MB. Free memory was 83.0MB in the beginning and 72.6MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-26 16:55:12,584 INFO L158 Benchmark]: BuchiAutomizer took 8112.16ms. Allocated memory was 159.4MB in the beginning and 461.4MB in the end (delta: 302.0MB). Free memory was 72.4MB in the beginning and 134.4MB in the end (delta: -61.9MB). Peak memory consumption was 246.1MB. Max. memory is 8.0GB. [2025-04-26 16:55:12,586 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 0.79ms. Allocated memory is still 159.4MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.04ms. Allocated memory is still 159.4MB. Free memory was 86.0MB in the beginning and 84.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 24.79ms. Allocated memory is still 159.4MB. Free memory was 84.2MB in the beginning and 83.1MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 245.15ms. Allocated memory is still 159.4MB. Free memory was 83.0MB in the beginning and 72.6MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 8112.16ms. Allocated memory was 159.4MB in the beginning and 461.4MB in the end (delta: 302.0MB). Free memory was 72.4MB in the beginning and 134.4MB in the end (delta: -61.9MB). Peak memory consumption was 246.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.1s. Büchi inclusion checks took 1.7s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 1. Automata minimization 0.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 3929 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.7s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 254 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 253 mSDsluCounter, 449 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 184 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 204 IncrementalHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 265 mSDtfsCounter, 204 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital38 mio100 ax100 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq209 hnf90 smp100 dnf100 smp100 tf105 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 6 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.1s InitialAbstractionConstructionTime: 1.5s InitialAbstraction: Time to compute Ample Reduction [ms]: 1492, Number of transitions in reduction automaton: 14066, Number of states in reduction automaton: 6061, Underlying: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (3 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function (if f2_3 then 1 else 0) and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 4989 locations. - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 44]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {y_1=0, x_0=0, freshIdentifier37=0, temp_5=-9, freshIdentifier38=0, temp_6=-2, freshIdentifier39=0, temp_4=-1, (if f2_3 then 1 else 0)=0, freshIdentifier40=0, (if f1_2 then 1 else 0)=0, temp_7=-2, freshIdentifier41=0, freshIdentifier42=0, y_9=0, x_8=0} State at position 1 is {y_1=0, x_0=0, freshIdentifier43=3, temp_5=-9, freshIdentifier44=3, temp_6=-2, freshIdentifier45=3, temp_4=-1, (if f2_3 then 1 else 0)=0, freshIdentifier46=2, (if f1_2 then 1 else 0)=0, temp_7=-2, freshIdentifier47=1, freshIdentifier48=2, y_9=0, x_8=0} For i>1, the state at position i is {y_1=0 + sum_{k=0}^i 2, x_0=0 + sum_{k=0}^i 1*0^k + 1 + 1*k*0^(k-1), freshIdentifier49=3 + sum_{k=0}^i 0, temp_5=-9 + sum_{k=0}^i 3 + -1*8^k + -1*k + 8*0^k + 8*k*8^(k-1) + 8*binomial(k, 2), freshIdentifier50=3 + sum_{k=0}^i 0, temp_6=-2 + sum_{k=0}^i 2, freshIdentifier51=3 + sum_{k=0}^i 0, temp_4=-1 + sum_{k=0}^i 1 + 1*k*0^(k-1), (if f2_3 then 1 else 0)=0 + sum_{k=0}^i 0, freshIdentifier52=2 + sum_{k=0}^i 0, (if f1_2 then 1 else 0)=0 + sum_{k=0}^i 0, temp_7=-2 + sum_{k=0}^i 2*0^k + 1 + 1*k*0^(k-1), freshIdentifier53=1 + sum_{k=0}^i 0, freshIdentifier54=2 + sum_{k=0}^i 0, y_9=0 + sum_{k=0}^i 0, x_8=0 + sum_{k=0}^i -1*0^k + -1 + -1*k*0^(k-1) + 2} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 6GEVs Lambdas: [1, 8, 0, 0, 1, 1] Mus: [1, 1, 0, 1, 0] - NonterminatingLassoResult [Line: 44]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L115] 0 assume x_0 == x_8 && y_1 == y_9; [L116] FORK 0 fork 1 thread1(); [L60] 1 f1_2 := false; [L61] 1 f2_3 := false; [L63] FORK 1 fork 2, 2 thread2(); [L64] FORK 1 fork 3, 3, 3 thread3(); Loop: [L45] temp_6 := y_1; [L30] temp_4 := x_0; [L46] y_1 := temp_6 + 1; [L31] x_0 := temp_4 + 1; [L47] f2_3 := true; [L32] f1_2 := true; [L33] assume f2_3; [L34] temp_5 := y_1; [L35] y_1 := temp_5 + 1; [L48] assume f1_2; [L36] f1_2 := false; [L49] temp_7 := x_0; [L50] x_0 := temp_7 + 1; [L51] f2_3 := false; [L52] assume !f1_2; [L37] assume !f2_3; End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-04-26 16:55:12,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...