/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.positions.where.we.compute.the.hoare.annotation All -i ../../../trunk/examples/svcomp/weaver/popl20-more-array-sum2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-14 22:57:18,801 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 22:57:18,910 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2025-03-14 22:57:18,936 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 22:57:18,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 22:57:18,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 22:57:18,937 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 22:57:18,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 22:57:18,937 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 22:57:18,937 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 22:57:18,937 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 22:57:18,937 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 22:57:18,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 22:57:18,939 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 22:57:18,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 22:57:18,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 22:57:18,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 22:57:18,939 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 22:57:18,940 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 22:57:18,940 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 22:57:18,940 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 22:57:18,940 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-14 22:57:18,940 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 22:57:18,940 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-14 22:57:18,940 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 22:57:18,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-14 22:57:18,940 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 22:57:18,940 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 22:57:18,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 22:57:18,941 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 22:57:18,941 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 22:57:18,941 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 22:57:18,941 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All [2025-03-14 22:57:19,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 22:57:19,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 22:57:19,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 22:57:19,195 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 22:57:19,195 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 22:57:19,195 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-array-sum2.wvr.c [2025-03-14 22:57:20,351 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b219e739/36469784be5243afa2185ad65478c8ec/FLAG8885ce80e [2025-03-14 22:57:20,528 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 22:57:20,529 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum2.wvr.c [2025-03-14 22:57:20,536 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b219e739/36469784be5243afa2185ad65478c8ec/FLAG8885ce80e [2025-03-14 22:57:20,553 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b219e739/36469784be5243afa2185ad65478c8ec [2025-03-14 22:57:20,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 22:57:20,556 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-14 22:57:20,557 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 22:57:20,557 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 22:57:20,561 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 22:57:20,562 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 10:57:20" (1/1) ... [2025-03-14 22:57:20,563 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b356c0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:57:20, skipping insertion in model container [2025-03-14 22:57:20,563 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 10:57:20" (1/1) ... [2025-03-14 22:57:20,578 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 22:57:20,708 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum2.wvr.c[2638,2651] [2025-03-14 22:57:20,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 22:57:20,720 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 22:57:20,736 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum2.wvr.c[2638,2651] [2025-03-14 22:57:20,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 22:57:20,748 INFO L204 MainTranslator]: Completed translation [2025-03-14 22:57:20,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:57:20 WrapperNode [2025-03-14 22:57:20,749 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 22:57:20,750 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 22:57:20,750 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 22:57:20,750 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 22:57:20,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:57:20" (1/1) ... [2025-03-14 22:57:20,759 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:57:20" (1/1) ... [2025-03-14 22:57:20,783 INFO L138 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 249 [2025-03-14 22:57:20,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 22:57:20,784 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 22:57:20,784 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 22:57:20,784 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 22:57:20,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:57:20" (1/1) ... [2025-03-14 22:57:20,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:57:20" (1/1) ... [2025-03-14 22:57:20,792 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:57:20" (1/1) ... [2025-03-14 22:57:20,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:57:20" (1/1) ... [2025-03-14 22:57:20,800 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:57:20" (1/1) ... [2025-03-14 22:57:20,801 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:57:20" (1/1) ... [2025-03-14 22:57:20,806 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:57:20" (1/1) ... [2025-03-14 22:57:20,807 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:57:20" (1/1) ... [2025-03-14 22:57:20,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:57:20" (1/1) ... [2025-03-14 22:57:20,811 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 22:57:20,811 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-14 22:57:20,811 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-14 22:57:20,811 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-14 22:57:20,812 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:57:20" (1/1) ... [2025-03-14 22:57:20,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-14 22:57:20,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:57:20,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-03-14 22:57:20,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-03-14 22:57:20,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 22:57:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-14 22:57:20,854 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-14 22:57:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-14 22:57:20,854 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-14 22:57:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-14 22:57:20,854 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-14 22:57:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-14 22:57:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-14 22:57:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-14 22:57:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-14 22:57:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-14 22:57:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 22:57:20,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 22:57:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-14 22:57:20,855 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 22:57:20,932 INFO L234 CfgBuilder]: Building ICFG [2025-03-14 22:57:20,933 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 22:57:21,249 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 22:57:21,249 INFO L283 CfgBuilder]: Performing block encoding [2025-03-14 22:57:21,434 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 22:57:21,435 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 22:57:21,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.03 10:57:21 BoogieIcfgContainer [2025-03-14 22:57:21,435 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-14 22:57:21,438 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 22:57:21,438 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 22:57:21,441 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 22:57:21,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 10:57:20" (1/3) ... [2025-03-14 22:57:21,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f0310b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 10:57:21, skipping insertion in model container [2025-03-14 22:57:21,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:57:20" (2/3) ... [2025-03-14 22:57:21,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f0310b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 10:57:21, skipping insertion in model container [2025-03-14 22:57:21,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.03 10:57:21" (3/3) ... [2025-03-14 22:57:21,443 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum2.wvr.c [2025-03-14 22:57:21,462 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 22:57:21,463 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-array-sum2.wvr.c that has 4 procedures, 174 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2025-03-14 22:57:21,463 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 22:57:21,513 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-14 22:57:21,545 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 22:57:21,556 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7bc27d6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 22:57:21,557 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-14 22:57:21,624 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 22:57:21,624 INFO L124 PetriNetUnfolderBase]: 11/175 cut-off events. [2025-03-14 22:57:21,626 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-14 22:57:21,626 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:57:21,627 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:57:21,627 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 22:57:21,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:57:21,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1151131307, now seen corresponding path program 1 times [2025-03-14 22:57:21,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:57:21,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763642229] [2025-03-14 22:57:21,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:57:21,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:57:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:57:22,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:57:22,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:57:22,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763642229] [2025-03-14 22:57:22,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763642229] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:57:22,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:57:22,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-14 22:57:22,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100649630] [2025-03-14 22:57:22,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:57:22,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 22:57:22,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:57:22,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 22:57:22,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-14 22:57:22,199 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 184 [2025-03-14 22:57:22,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 184 transitions, 389 flow. Second operand has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:22,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:57:22,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 184 [2025-03-14 22:57:22,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:57:22,455 INFO L124 PetriNetUnfolderBase]: 55/391 cut-off events. [2025-03-14 22:57:22,455 INFO L125 PetriNetUnfolderBase]: For 61/62 co-relation queries the response was YES. [2025-03-14 22:57:22,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 391 events. 55/391 cut-off events. For 61/62 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1248 event pairs, 6 based on Foata normal form. 10/366 useless extension candidates. Maximal degree in co-relation 292. Up to 54 conditions per place. [2025-03-14 22:57:22,462 INFO L140 encePairwiseOnDemand]: 163/184 looper letters, 61 selfloop transitions, 6 changer transitions 12/196 dead transitions. [2025-03-14 22:57:22,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 196 transitions, 595 flow [2025-03-14 22:57:22,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-14 22:57:22,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-14 22:57:22,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1206 transitions. [2025-03-14 22:57:22,482 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7282608695652174 [2025-03-14 22:57:22,485 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 0 predicate places. [2025-03-14 22:57:22,485 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 196 transitions, 595 flow [2025-03-14 22:57:22,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:22,486 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:57:22,486 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:57:22,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 22:57:22,487 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 22:57:22,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:57:22,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1785952031, now seen corresponding path program 1 times [2025-03-14 22:57:22,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:57:22,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260245863] [2025-03-14 22:57:22,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:57:22,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:57:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:57:22,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:57:22,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:57:22,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260245863] [2025-03-14 22:57:22,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260245863] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:57:22,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:57:22,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-14 22:57:22,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076142187] [2025-03-14 22:57:22,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:57:22,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 22:57:22,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:57:22,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 22:57:22,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-14 22:57:22,739 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 184 [2025-03-14 22:57:22,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 196 transitions, 595 flow. Second operand has 7 states, 7 states have (on average 132.57142857142858) internal successors, (928), 7 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:22,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:57:22,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 184 [2025-03-14 22:57:22,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:57:23,113 INFO L124 PetriNetUnfolderBase]: 451/1432 cut-off events. [2025-03-14 22:57:23,113 INFO L125 PetriNetUnfolderBase]: For 517/568 co-relation queries the response was YES. [2025-03-14 22:57:23,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2804 conditions, 1432 events. 451/1432 cut-off events. For 517/568 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 8169 event pairs, 151 based on Foata normal form. 1/1247 useless extension candidates. Maximal degree in co-relation 1533. Up to 494 conditions per place. [2025-03-14 22:57:23,124 INFO L140 encePairwiseOnDemand]: 163/184 looper letters, 98 selfloop transitions, 28 changer transitions 13/259 dead transitions. [2025-03-14 22:57:23,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 259 transitions, 1064 flow [2025-03-14 22:57:23,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-14 22:57:23,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-14 22:57:23,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1375 transitions. [2025-03-14 22:57:23,128 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7472826086956522 [2025-03-14 22:57:23,129 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 9 predicate places. [2025-03-14 22:57:23,129 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 259 transitions, 1064 flow [2025-03-14 22:57:23,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 132.57142857142858) internal successors, (928), 7 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:23,130 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:57:23,130 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:57:23,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 22:57:23,130 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 22:57:23,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:57:23,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1877276518, now seen corresponding path program 1 times [2025-03-14 22:57:23,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:57:23,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107639593] [2025-03-14 22:57:23,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:57:23,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:57:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:57:23,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:57:23,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:57:23,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107639593] [2025-03-14 22:57:23,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107639593] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:57:23,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:57:23,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-14 22:57:23,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606646891] [2025-03-14 22:57:23,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:57:23,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-14 22:57:23,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:57:23,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-14 22:57:23,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2025-03-14 22:57:23,501 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 184 [2025-03-14 22:57:23,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 259 transitions, 1064 flow. Second operand has 8 states, 8 states have (on average 97.75) internal successors, (782), 8 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:23,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:57:23,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 184 [2025-03-14 22:57:23,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:57:23,927 INFO L124 PetriNetUnfolderBase]: 812/1820 cut-off events. [2025-03-14 22:57:23,927 INFO L125 PetriNetUnfolderBase]: For 1408/1680 co-relation queries the response was YES. [2025-03-14 22:57:23,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4600 conditions, 1820 events. 812/1820 cut-off events. For 1408/1680 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 11024 event pairs, 440 based on Foata normal form. 0/1427 useless extension candidates. Maximal degree in co-relation 3878. Up to 1073 conditions per place. [2025-03-14 22:57:23,940 INFO L140 encePairwiseOnDemand]: 163/184 looper letters, 96 selfloop transitions, 14 changer transitions 54/246 dead transitions. [2025-03-14 22:57:23,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 246 transitions, 1259 flow [2025-03-14 22:57:23,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-14 22:57:23,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-14 22:57:23,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 934 transitions. [2025-03-14 22:57:23,946 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5640096618357487 [2025-03-14 22:57:23,947 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 16 predicate places. [2025-03-14 22:57:23,947 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 246 transitions, 1259 flow [2025-03-14 22:57:23,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 97.75) internal successors, (782), 8 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:23,948 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:57:23,948 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:57:23,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 22:57:23,948 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 22:57:23,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:57:23,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1010479730, now seen corresponding path program 1 times [2025-03-14 22:57:23,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:57:23,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548077174] [2025-03-14 22:57:23,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:57:23,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:57:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:57:24,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:57:24,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:57:24,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548077174] [2025-03-14 22:57:24,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548077174] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:57:24,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715099388] [2025-03-14 22:57:24,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:57:24,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:57:24,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:57:24,167 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:57:24,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-14 22:57:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:57:24,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-14 22:57:24,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:57:24,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:57:24,484 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:57:24,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:57:24,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715099388] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:57:24,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:57:24,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2025-03-14 22:57:24,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232617528] [2025-03-14 22:57:24,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:57:24,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 22:57:24,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:57:24,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 22:57:24,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2025-03-14 22:57:24,723 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 184 [2025-03-14 22:57:24,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 246 transitions, 1259 flow. Second operand has 9 states, 9 states have (on average 124.55555555555556) internal successors, (1121), 9 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:24,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:57:24,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 184 [2025-03-14 22:57:24,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:57:25,462 INFO L124 PetriNetUnfolderBase]: 2986/5257 cut-off events. [2025-03-14 22:57:25,462 INFO L125 PetriNetUnfolderBase]: For 8452/9416 co-relation queries the response was YES. [2025-03-14 22:57:25,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17311 conditions, 5257 events. 2986/5257 cut-off events. For 8452/9416 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 35113 event pairs, 730 based on Foata normal form. 4/4106 useless extension candidates. Maximal degree in co-relation 16319. Up to 3091 conditions per place. [2025-03-14 22:57:25,497 INFO L140 encePairwiseOnDemand]: 160/184 looper letters, 139 selfloop transitions, 24 changer transitions 58/333 dead transitions. [2025-03-14 22:57:25,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 333 transitions, 2248 flow [2025-03-14 22:57:25,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-14 22:57:25,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-14 22:57:25,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1320 transitions. [2025-03-14 22:57:25,500 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.717391304347826 [2025-03-14 22:57:25,500 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 25 predicate places. [2025-03-14 22:57:25,500 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 333 transitions, 2248 flow [2025-03-14 22:57:25,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 124.55555555555556) internal successors, (1121), 9 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:25,501 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:57:25,501 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:57:25,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-14 22:57:25,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:57:25,706 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 22:57:25,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:57:25,707 INFO L85 PathProgramCache]: Analyzing trace with hash 159641018, now seen corresponding path program 2 times [2025-03-14 22:57:25,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:57:25,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868937355] [2025-03-14 22:57:25,707 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:57:25,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:57:25,723 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 22:57:25,724 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:57:25,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:57:25,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:57:25,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868937355] [2025-03-14 22:57:25,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868937355] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:57:25,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:57:25,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-14 22:57:25,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508624178] [2025-03-14 22:57:25,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:57:25,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-14 22:57:25,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:57:25,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-14 22:57:25,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-14 22:57:25,811 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 184 [2025-03-14 22:57:25,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 333 transitions, 2248 flow. Second operand has 8 states, 8 states have (on average 146.25) internal successors, (1170), 8 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:25,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:57:25,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 184 [2025-03-14 22:57:25,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:57:27,201 INFO L124 PetriNetUnfolderBase]: 5384/8935 cut-off events. [2025-03-14 22:57:27,201 INFO L125 PetriNetUnfolderBase]: For 10864/12857 co-relation queries the response was YES. [2025-03-14 22:57:27,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35581 conditions, 8935 events. 5384/8935 cut-off events. For 10864/12857 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 60593 event pairs, 259 based on Foata normal form. 19/7656 useless extension candidates. Maximal degree in co-relation 29854. Up to 4689 conditions per place. [2025-03-14 22:57:27,261 INFO L140 encePairwiseOnDemand]: 172/184 looper letters, 517 selfloop transitions, 106 changer transitions 58/825 dead transitions. [2025-03-14 22:57:27,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 825 transitions, 7087 flow [2025-03-14 22:57:27,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-14 22:57:27,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-14 22:57:27,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3282 transitions. [2025-03-14 22:57:27,267 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8493788819875776 [2025-03-14 22:57:27,270 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 45 predicate places. [2025-03-14 22:57:27,270 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 825 transitions, 7087 flow [2025-03-14 22:57:27,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 146.25) internal successors, (1170), 8 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:27,271 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:57:27,271 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:57:27,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-14 22:57:27,271 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 22:57:27,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:57:27,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1158930196, now seen corresponding path program 3 times [2025-03-14 22:57:27,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:57:27,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418408202] [2025-03-14 22:57:27,272 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:57:27,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:57:27,292 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 22:57:27,292 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:57:27,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:57:27,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:57:27,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418408202] [2025-03-14 22:57:27,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418408202] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:57:27,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:57:27,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-14 22:57:27,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943511685] [2025-03-14 22:57:27,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:57:27,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-14 22:57:27,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:57:27,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-14 22:57:27,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-14 22:57:27,381 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 184 [2025-03-14 22:57:27,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 825 transitions, 7087 flow. Second operand has 8 states, 8 states have (on average 146.25) internal successors, (1170), 8 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:27,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:57:27,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 184 [2025-03-14 22:57:27,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:57:29,198 INFO L124 PetriNetUnfolderBase]: 7652/13003 cut-off events. [2025-03-14 22:57:29,198 INFO L125 PetriNetUnfolderBase]: For 18947/22210 co-relation queries the response was YES. [2025-03-14 22:57:29,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62104 conditions, 13003 events. 7652/13003 cut-off events. For 18947/22210 co-relation queries the response was YES. Maximal size of possible extension queue 723. Compared 96823 event pairs, 249 based on Foata normal form. 85/11322 useless extension candidates. Maximal degree in co-relation 60444. Up to 6678 conditions per place. [2025-03-14 22:57:29,329 INFO L140 encePairwiseOnDemand]: 173/184 looper letters, 1066 selfloop transitions, 90 changer transitions 58/1358 dead transitions. [2025-03-14 22:57:29,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 1358 transitions, 14305 flow [2025-03-14 22:57:29,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-14 22:57:29,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-14 22:57:29,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2204 transitions. [2025-03-14 22:57:29,334 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8555900621118012 [2025-03-14 22:57:29,334 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 58 predicate places. [2025-03-14 22:57:29,335 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 1358 transitions, 14305 flow [2025-03-14 22:57:29,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 146.25) internal successors, (1170), 8 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:29,335 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:57:29,335 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:57:29,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-14 22:57:29,336 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 22:57:29,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:57:29,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1410286862, now seen corresponding path program 4 times [2025-03-14 22:57:29,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:57:29,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836751666] [2025-03-14 22:57:29,336 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:57:29,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:57:29,352 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:57:29,352 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:57:29,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:57:29,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:57:29,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836751666] [2025-03-14 22:57:29,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836751666] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:57:29,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733403700] [2025-03-14 22:57:29,502 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:57:29,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:57:29,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:57:29,505 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:57:29,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-14 22:57:29,578 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:57:29,579 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:57:29,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-14 22:57:29,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:57:29,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:57:29,779 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:57:29,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:57:29,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733403700] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:57:29,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:57:29,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11, 9] total 21 [2025-03-14 22:57:29,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878437633] [2025-03-14 22:57:29,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:57:29,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 22:57:29,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:57:29,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 22:57:29,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2025-03-14 22:57:29,991 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 184 [2025-03-14 22:57:29,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 1358 transitions, 14305 flow. Second operand has 9 states, 9 states have (on average 124.55555555555556) internal successors, (1121), 9 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:29,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:57:29,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 184 [2025-03-14 22:57:29,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:57:32,506 INFO L124 PetriNetUnfolderBase]: 10521/17714 cut-off events. [2025-03-14 22:57:32,506 INFO L125 PetriNetUnfolderBase]: For 33960/43779 co-relation queries the response was YES. [2025-03-14 22:57:32,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98050 conditions, 17714 events. 10521/17714 cut-off events. For 33960/43779 co-relation queries the response was YES. Maximal size of possible extension queue 881. Compared 136360 event pairs, 306 based on Foata normal form. 116/15463 useless extension candidates. Maximal degree in co-relation 83503. Up to 9154 conditions per place. [2025-03-14 22:57:32,650 INFO L140 encePairwiseOnDemand]: 162/184 looper letters, 1377 selfloop transitions, 327 changer transitions 58/2004 dead transitions. [2025-03-14 22:57:32,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 2004 transitions, 25442 flow [2025-03-14 22:57:32,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 22:57:32,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 22:57:32,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1702 transitions. [2025-03-14 22:57:32,653 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7115384615384616 [2025-03-14 22:57:32,655 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 70 predicate places. [2025-03-14 22:57:32,655 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 2004 transitions, 25442 flow [2025-03-14 22:57:32,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 124.55555555555556) internal successors, (1121), 9 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:32,656 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:57:32,657 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:57:32,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-14 22:57:32,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-03-14 22:57:32,861 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 22:57:32,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:57:32,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1938084430, now seen corresponding path program 5 times [2025-03-14 22:57:32,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:57:32,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851798667] [2025-03-14 22:57:32,862 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:57:32,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:57:32,882 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:57:32,883 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:57:33,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:57:33,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:57:33,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851798667] [2025-03-14 22:57:33,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851798667] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:57:33,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526438321] [2025-03-14 22:57:33,109 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:57:33,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:57:33,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:57:33,112 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:57:33,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-14 22:57:33,195 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:57:33,195 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:57:33,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-14 22:57:33,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:57:33,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:57:33,353 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:57:33,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:57:33,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526438321] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:57:33,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:57:33,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 17 [2025-03-14 22:57:33,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942283263] [2025-03-14 22:57:33,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:57:33,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 22:57:33,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:57:33,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 22:57:33,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2025-03-14 22:57:33,559 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 184 [2025-03-14 22:57:33,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 2004 transitions, 25442 flow. Second operand has 9 states, 9 states have (on average 124.55555555555556) internal successors, (1121), 9 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:33,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:57:33,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 184 [2025-03-14 22:57:33,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:57:37,239 INFO L124 PetriNetUnfolderBase]: 10930/19280 cut-off events. [2025-03-14 22:57:37,239 INFO L125 PetriNetUnfolderBase]: For 45636/64913 co-relation queries the response was YES. [2025-03-14 22:57:37,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117502 conditions, 19280 events. 10930/19280 cut-off events. For 45636/64913 co-relation queries the response was YES. Maximal size of possible extension queue 936. Compared 157883 event pairs, 439 based on Foata normal form. 181/16998 useless extension candidates. Maximal degree in co-relation 99888. Up to 9612 conditions per place. [2025-03-14 22:57:37,437 INFO L140 encePairwiseOnDemand]: 162/184 looper letters, 2029 selfloop transitions, 448 changer transitions 73/2792 dead transitions. [2025-03-14 22:57:37,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 2792 transitions, 41614 flow [2025-03-14 22:57:37,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-14 22:57:37,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-14 22:57:37,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1438 transitions. [2025-03-14 22:57:37,440 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7104743083003953 [2025-03-14 22:57:37,441 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 80 predicate places. [2025-03-14 22:57:37,441 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 2792 transitions, 41614 flow [2025-03-14 22:57:37,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 124.55555555555556) internal successors, (1121), 9 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:37,441 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:57:37,441 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:57:37,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-14 22:57:37,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:57:37,696 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 22:57:37,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:57:37,697 INFO L85 PathProgramCache]: Analyzing trace with hash 49452552, now seen corresponding path program 6 times [2025-03-14 22:57:37,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:57:37,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356823317] [2025-03-14 22:57:37,697 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 22:57:37,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:57:37,708 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-14 22:57:37,708 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:57:37,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:57:37,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:57:37,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356823317] [2025-03-14 22:57:37,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356823317] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:57:37,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:57:37,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-14 22:57:37,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614804557] [2025-03-14 22:57:37,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:57:37,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-14 22:57:37,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:57:37,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-14 22:57:37,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-14 22:57:37,783 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 184 [2025-03-14 22:57:37,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 2792 transitions, 41614 flow. Second operand has 8 states, 8 states have (on average 146.25) internal successors, (1170), 8 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:37,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:57:37,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 184 [2025-03-14 22:57:37,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:57:42,253 INFO L124 PetriNetUnfolderBase]: 11766/20320 cut-off events. [2025-03-14 22:57:42,253 INFO L125 PetriNetUnfolderBase]: For 54012/62405 co-relation queries the response was YES. [2025-03-14 22:57:42,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143375 conditions, 20320 events. 11766/20320 cut-off events. For 54012/62405 co-relation queries the response was YES. Maximal size of possible extension queue 1000. Compared 163783 event pairs, 371 based on Foata normal form. 201/17972 useless extension candidates. Maximal degree in co-relation 140405. Up to 10253 conditions per place. [2025-03-14 22:57:42,418 INFO L140 encePairwiseOnDemand]: 170/184 looper letters, 2363 selfloop transitions, 421 changer transitions 73/3001 dead transitions. [2025-03-14 22:57:42,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 3001 transitions, 49942 flow [2025-03-14 22:57:42,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-14 22:57:42,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-03-14 22:57:42,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2695 transitions. [2025-03-14 22:57:42,421 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8615728900255755 [2025-03-14 22:57:42,422 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 96 predicate places. [2025-03-14 22:57:42,422 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 3001 transitions, 49942 flow [2025-03-14 22:57:42,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 146.25) internal successors, (1170), 8 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:42,422 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:57:42,422 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:57:42,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-14 22:57:42,422 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 22:57:42,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:57:42,423 INFO L85 PathProgramCache]: Analyzing trace with hash 350795288, now seen corresponding path program 7 times [2025-03-14 22:57:42,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:57:42,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797874526] [2025-03-14 22:57:42,423 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 22:57:42,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:57:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:57:42,555 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:57:42,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:57:42,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797874526] [2025-03-14 22:57:42,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797874526] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:57:42,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830208468] [2025-03-14 22:57:42,556 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 22:57:42,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:57:42,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:57:42,559 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:57:42,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-14 22:57:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:57:42,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-14 22:57:42,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:57:42,785 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:57:42,785 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:57:42,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:57:42,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830208468] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:57:42,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:57:42,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 20 [2025-03-14 22:57:42,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089353437] [2025-03-14 22:57:42,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:57:42,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 22:57:42,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:57:42,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 22:57:42,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2025-03-14 22:57:42,975 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 184 [2025-03-14 22:57:42,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 3001 transitions, 49942 flow. Second operand has 9 states, 9 states have (on average 124.55555555555556) internal successors, (1121), 9 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:42,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:57:42,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 184 [2025-03-14 22:57:42,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:57:48,033 INFO L124 PetriNetUnfolderBase]: 12885/22682 cut-off events. [2025-03-14 22:57:48,033 INFO L125 PetriNetUnfolderBase]: For 79179/87538 co-relation queries the response was YES. [2025-03-14 22:57:48,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174048 conditions, 22682 events. 12885/22682 cut-off events. For 79179/87538 co-relation queries the response was YES. Maximal size of possible extension queue 1126. Compared 190229 event pairs, 415 based on Foata normal form. 175/20089 useless extension candidates. Maximal degree in co-relation 148428. Up to 11100 conditions per place. [2025-03-14 22:57:48,255 INFO L140 encePairwiseOnDemand]: 161/184 looper letters, 2393 selfloop transitions, 514 changer transitions 75/3287 dead transitions. [2025-03-14 22:57:48,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 3287 transitions, 61096 flow [2025-03-14 22:57:48,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-14 22:57:48,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-14 22:57:48,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1454 transitions. [2025-03-14 22:57:48,257 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7183794466403162 [2025-03-14 22:57:48,257 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 106 predicate places. [2025-03-14 22:57:48,257 INFO L471 AbstractCegarLoop]: Abstraction has has 289 places, 3287 transitions, 61096 flow [2025-03-14 22:57:48,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 124.55555555555556) internal successors, (1121), 9 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:48,258 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:57:48,258 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:57:48,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-14 22:57:48,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:57:48,459 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 22:57:48,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:57:48,459 INFO L85 PathProgramCache]: Analyzing trace with hash 385670410, now seen corresponding path program 8 times [2025-03-14 22:57:48,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:57:48,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233265559] [2025-03-14 22:57:48,460 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:57:48,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:57:48,472 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 22:57:48,472 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:57:48,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:57:48,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:57:48,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233265559] [2025-03-14 22:57:48,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233265559] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:57:48,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:57:48,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-14 22:57:48,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115246584] [2025-03-14 22:57:48,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:57:48,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-14 22:57:48,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:57:48,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-14 22:57:48,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-14 22:57:48,663 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 184 [2025-03-14 22:57:48,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 3287 transitions, 61096 flow. Second operand has 8 states, 8 states have (on average 146.25) internal successors, (1170), 8 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:48,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:57:48,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 184 [2025-03-14 22:57:48,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:57:56,239 INFO L124 PetriNetUnfolderBase]: 15665/27225 cut-off events. [2025-03-14 22:57:56,239 INFO L125 PetriNetUnfolderBase]: For 105026/113713 co-relation queries the response was YES. [2025-03-14 22:57:56,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234481 conditions, 27225 events. 15665/27225 cut-off events. For 105026/113713 co-relation queries the response was YES. Maximal size of possible extension queue 1391. Compared 232662 event pairs, 335 based on Foata normal form. 131/24099 useless extension candidates. Maximal degree in co-relation 200078. Up to 13470 conditions per place. [2025-03-14 22:57:56,553 INFO L140 encePairwiseOnDemand]: 170/184 looper letters, 3257 selfloop transitions, 288 changer transitions 75/3764 dead transitions. [2025-03-14 22:57:56,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 3764 transitions, 77200 flow [2025-03-14 22:57:56,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 22:57:56,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 22:57:56,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2073 transitions. [2025-03-14 22:57:56,555 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8666387959866221 [2025-03-14 22:57:56,555 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 118 predicate places. [2025-03-14 22:57:56,555 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 3764 transitions, 77200 flow [2025-03-14 22:57:56,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 146.25) internal successors, (1170), 8 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:56,555 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:57:56,555 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:57:56,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-14 22:57:56,556 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 22:57:56,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:57:56,556 INFO L85 PathProgramCache]: Analyzing trace with hash -498403240, now seen corresponding path program 1 times [2025-03-14 22:57:56,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:57:56,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784562516] [2025-03-14 22:57:56,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:57:56,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:57:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:57:56,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:57:56,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:57:56,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784562516] [2025-03-14 22:57:56,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784562516] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:57:56,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408835251] [2025-03-14 22:57:56,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:57:56,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:57:56,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:57:56,643 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:57:56,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-14 22:57:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:57:56,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-14 22:57:56,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:57:56,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:57:56,811 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:57:56,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:57:56,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408835251] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:57:56,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:57:56,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2025-03-14 22:57:56,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753769179] [2025-03-14 22:57:56,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:57:56,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 22:57:56,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:57:56,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 22:57:56,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-03-14 22:57:56,948 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 184 [2025-03-14 22:57:56,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 3764 transitions, 77200 flow. Second operand has 7 states, 7 states have (on average 133.42857142857142) internal successors, (934), 7 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:57:56,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:57:56,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 184 [2025-03-14 22:57:56,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:58:03,730 INFO L124 PetriNetUnfolderBase]: 14332/25029 cut-off events. [2025-03-14 22:58:03,731 INFO L125 PetriNetUnfolderBase]: For 120089/140105 co-relation queries the response was YES. [2025-03-14 22:58:03,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226143 conditions, 25029 events. 14332/25029 cut-off events. For 120089/140105 co-relation queries the response was YES. Maximal size of possible extension queue 1265. Compared 211898 event pairs, 370 based on Foata normal form. 91/22319 useless extension candidates. Maximal degree in co-relation 215959. Up to 12297 conditions per place. [2025-03-14 22:58:04,025 INFO L140 encePairwiseOnDemand]: 166/184 looper letters, 2234 selfloop transitions, 315 changer transitions 52/3867 dead transitions. [2025-03-14 22:58:04,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 3867 transitions, 84650 flow [2025-03-14 22:58:04,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-14 22:58:04,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-14 22:58:04,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 965 transitions. [2025-03-14 22:58:04,026 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7492236024844721 [2025-03-14 22:58:04,027 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 121 predicate places. [2025-03-14 22:58:04,027 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 3867 transitions, 84650 flow [2025-03-14 22:58:04,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 133.42857142857142) internal successors, (934), 7 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:58:04,027 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:58:04,028 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:58:04,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-14 22:58:04,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-03-14 22:58:04,228 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 22:58:04,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:58:04,229 INFO L85 PathProgramCache]: Analyzing trace with hash 400245524, now seen corresponding path program 9 times [2025-03-14 22:58:04,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:58:04,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497231560] [2025-03-14 22:58:04,229 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:58:04,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:58:04,242 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 22:58:04,242 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:58:04,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:58:04,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:58:04,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497231560] [2025-03-14 22:58:04,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497231560] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:58:04,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:58:04,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-14 22:58:04,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833468534] [2025-03-14 22:58:04,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:58:04,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-14 22:58:04,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:58:04,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-14 22:58:04,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-14 22:58:04,316 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 184 [2025-03-14 22:58:04,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 3867 transitions, 84650 flow. Second operand has 8 states, 8 states have (on average 146.25) internal successors, (1170), 8 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:58:04,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:58:04,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 184 [2025-03-14 22:58:04,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:58:15,231 INFO L124 PetriNetUnfolderBase]: 18454/31692 cut-off events. [2025-03-14 22:58:15,231 INFO L125 PetriNetUnfolderBase]: For 174206/213179 co-relation queries the response was YES. [2025-03-14 22:58:15,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316973 conditions, 31692 events. 18454/31692 cut-off events. For 174206/213179 co-relation queries the response was YES. Maximal size of possible extension queue 1580. Compared 272012 event pairs, 482 based on Foata normal form. 349/28500 useless extension candidates. Maximal degree in co-relation 279091. Up to 15697 conditions per place. [2025-03-14 22:58:15,800 INFO L140 encePairwiseOnDemand]: 171/184 looper letters, 4036 selfloop transitions, 709 changer transitions 52/4935 dead transitions. [2025-03-14 22:58:15,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 4935 transitions, 118292 flow [2025-03-14 22:58:15,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-14 22:58:15,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-03-14 22:58:15,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2687 transitions. [2025-03-14 22:58:15,802 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8590153452685422 [2025-03-14 22:58:15,803 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 137 predicate places. [2025-03-14 22:58:15,803 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 4935 transitions, 118292 flow [2025-03-14 22:58:15,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 146.25) internal successors, (1170), 8 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:58:15,803 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:58:15,803 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:58:15,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-14 22:58:15,803 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 22:58:15,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:58:15,804 INFO L85 PathProgramCache]: Analyzing trace with hash 966027830, now seen corresponding path program 10 times [2025-03-14 22:58:15,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:58:15,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662593644] [2025-03-14 22:58:15,804 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:58:15,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:58:15,813 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:58:15,813 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:58:15,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:58:15,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:58:15,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662593644] [2025-03-14 22:58:15,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662593644] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:58:15,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336784210] [2025-03-14 22:58:15,903 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:58:15,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:58:15,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:58:15,905 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:58:15,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-14 22:58:15,972 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:58:15,972 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:58:15,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-14 22:58:15,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:58:16,125 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:58:16,125 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:58:16,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:58:16,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336784210] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:58:16,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:58:16,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11, 9] total 22 [2025-03-14 22:58:16,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956765337] [2025-03-14 22:58:16,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:58:16,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 22:58:16,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:58:16,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 22:58:16,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2025-03-14 22:58:16,286 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 184 [2025-03-14 22:58:16,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 4935 transitions, 118292 flow. Second operand has 9 states, 9 states have (on average 124.55555555555556) internal successors, (1121), 9 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:58:16,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:58:16,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 184 [2025-03-14 22:58:16,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:58:30,508 INFO L124 PetriNetUnfolderBase]: 18237/31333 cut-off events. [2025-03-14 22:58:30,508 INFO L125 PetriNetUnfolderBase]: For 203294/226567 co-relation queries the response was YES. [2025-03-14 22:58:30,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336306 conditions, 31333 events. 18237/31333 cut-off events. For 203294/226567 co-relation queries the response was YES. Maximal size of possible extension queue 1558. Compared 268356 event pairs, 501 based on Foata normal form. 407/28276 useless extension candidates. Maximal degree in co-relation 296049. Up to 15508 conditions per place. [2025-03-14 22:58:30,983 INFO L140 encePairwiseOnDemand]: 159/184 looper letters, 3335 selfloop transitions, 1005 changer transitions 52/4812 dead transitions. [2025-03-14 22:58:30,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 4812 transitions, 123932 flow [2025-03-14 22:58:30,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-14 22:58:30,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-14 22:58:30,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1456 transitions. [2025-03-14 22:58:30,985 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7193675889328063 [2025-03-14 22:58:30,985 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 147 predicate places. [2025-03-14 22:58:30,985 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 4812 transitions, 123932 flow [2025-03-14 22:58:30,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 124.55555555555556) internal successors, (1121), 9 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:58:30,986 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:58:30,986 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:58:30,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-14 22:58:31,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:58:31,187 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 22:58:31,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:58:31,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1534023060, now seen corresponding path program 11 times [2025-03-14 22:58:31,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:58:31,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729067614] [2025-03-14 22:58:31,188 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:58:31,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:58:31,208 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:58:31,208 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:58:31,294 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:58:31,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:58:31,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729067614] [2025-03-14 22:58:31,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729067614] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:58:31,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833720356] [2025-03-14 22:58:31,295 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:58:31,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:58:31,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:58:31,297 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:58:31,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-14 22:58:31,375 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:58:31,375 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:58:31,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-14 22:58:31,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:58:31,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:58:31,448 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:58:31,521 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:58:31,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833720356] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:58:31,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:58:31,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2025-03-14 22:58:31,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880932559] [2025-03-14 22:58:31,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:58:31,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-14 22:58:31,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:58:31,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-14 22:58:31,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2025-03-14 22:58:31,523 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 184 [2025-03-14 22:58:31,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 4812 transitions, 123932 flow. Second operand has 15 states, 15 states have (on average 146.2) internal successors, (2193), 15 states have internal predecessors, (2193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:58:31,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:58:31,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 184 [2025-03-14 22:58:31,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:58:51,408 INFO L124 PetriNetUnfolderBase]: 26884/45458 cut-off events. [2025-03-14 22:58:51,408 INFO L125 PetriNetUnfolderBase]: For 305789/318400 co-relation queries the response was YES. [2025-03-14 22:58:51,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531871 conditions, 45458 events. 26884/45458 cut-off events. For 305789/318400 co-relation queries the response was YES. Maximal size of possible extension queue 2046. Compared 394867 event pairs, 275 based on Foata normal form. 490/41008 useless extension candidates. Maximal degree in co-relation 525590. Up to 24889 conditions per place. [2025-03-14 22:58:52,071 INFO L140 encePairwiseOnDemand]: 169/184 looper letters, 5310 selfloop transitions, 2113 changer transitions 52/7613 dead transitions. [2025-03-14 22:58:52,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 7613 transitions, 207925 flow [2025-03-14 22:58:52,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2025-03-14 22:58:52,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2025-03-14 22:58:52,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 7642 transitions. [2025-03-14 22:58:52,075 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8476042590949423 [2025-03-14 22:58:52,075 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 195 predicate places. [2025-03-14 22:58:52,075 INFO L471 AbstractCegarLoop]: Abstraction has has 378 places, 7613 transitions, 207925 flow [2025-03-14 22:58:52,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 146.2) internal successors, (2193), 15 states have internal predecessors, (2193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:58:52,076 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:58:52,076 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:58:52,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-14 22:58:52,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:58:52,277 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 22:58:52,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:58:52,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1923561462, now seen corresponding path program 12 times [2025-03-14 22:58:52,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:58:52,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115153611] [2025-03-14 22:58:52,277 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 22:58:52,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:58:52,288 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-14 22:58:52,288 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:58:52,352 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 22:58:52,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:58:52,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115153611] [2025-03-14 22:58:52,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115153611] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:58:52,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:58:52,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-14 22:58:52,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289875614] [2025-03-14 22:58:52,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:58:52,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 22:58:52,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:58:52,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 22:58:52,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-14 22:58:52,353 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 184 [2025-03-14 22:58:52,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 7613 transitions, 207925 flow. Second operand has 6 states, 6 states have (on average 119.16666666666667) internal successors, (715), 6 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:58:52,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:58:52,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 184 [2025-03-14 22:58:52,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:59:17,725 INFO L124 PetriNetUnfolderBase]: 21311/35995 cut-off events. [2025-03-14 22:59:17,725 INFO L125 PetriNetUnfolderBase]: For 301813/337303 co-relation queries the response was YES. [2025-03-14 22:59:17,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443418 conditions, 35995 events. 21311/35995 cut-off events. For 301813/337303 co-relation queries the response was YES. Maximal size of possible extension queue 1526. Compared 300991 event pairs, 267 based on Foata normal form. 108/32867 useless extension candidates. Maximal degree in co-relation 391964. Up to 20280 conditions per place. [2025-03-14 22:59:18,209 INFO L140 encePairwiseOnDemand]: 173/184 looper letters, 3652 selfloop transitions, 507 changer transitions 52/5602 dead transitions. [2025-03-14 22:59:18,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 5602 transitions, 159588 flow [2025-03-14 22:59:18,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-14 22:59:18,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-14 22:59:18,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 847 transitions. [2025-03-14 22:59:18,211 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.657608695652174 [2025-03-14 22:59:18,211 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 190 predicate places. [2025-03-14 22:59:18,211 INFO L471 AbstractCegarLoop]: Abstraction has has 373 places, 5602 transitions, 159588 flow [2025-03-14 22:59:18,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.16666666666667) internal successors, (715), 6 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:59:18,211 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:59:18,211 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:59:18,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-14 22:59:18,212 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 22:59:18,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:59:18,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1689909782, now seen corresponding path program 1 times [2025-03-14 22:59:18,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:59:18,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382620187] [2025-03-14 22:59:18,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:59:18,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:59:18,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:59:19,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:59:19,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:59:19,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382620187] [2025-03-14 22:59:19,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382620187] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:59:19,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212674927] [2025-03-14 22:59:19,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:59:19,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:59:19,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:59:19,822 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:59:19,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-14 22:59:19,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:59:19,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 49 conjuncts are in the unsatisfiable core [2025-03-14 22:59:19,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:59:20,599 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:59:20,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 83 [2025-03-14 22:59:20,801 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:59:20,801 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:59:20,964 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:59:20,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 43 treesize of output 92 [2025-03-14 22:59:21,503 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:59:21,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212674927] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:59:21,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:59:21,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 20, 20] total 57 [2025-03-14 22:59:21,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383801946] [2025-03-14 22:59:21,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:59:21,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2025-03-14 22:59:21,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:59:21,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2025-03-14 22:59:21,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=2703, Unknown=0, NotChecked=0, Total=3192 [2025-03-14 22:59:21,508 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 184 [2025-03-14 22:59:21,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 5602 transitions, 159588 flow. Second operand has 57 states, 57 states have (on average 62.824561403508774) internal successors, (3581), 57 states have internal predecessors, (3581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 22:59:21,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:59:21,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 184 [2025-03-14 22:59:21,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 23:00:05,202 INFO L124 PetriNetUnfolderBase]: 44195/74428 cut-off events. [2025-03-14 23:00:05,203 INFO L125 PetriNetUnfolderBase]: For 897068/1002052 co-relation queries the response was YES. [2025-03-14 23:00:05,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 977139 conditions, 74428 events. 44195/74428 cut-off events. For 897068/1002052 co-relation queries the response was YES. Maximal size of possible extension queue 3408. Compared 688904 event pairs, 492 based on Foata normal form. 673/68083 useless extension candidates. Maximal degree in co-relation 746621. Up to 41585 conditions per place. [2025-03-14 23:00:06,437 INFO L140 encePairwiseOnDemand]: 125/184 looper letters, 8935 selfloop transitions, 6916 changer transitions 116/17071 dead transitions. [2025-03-14 23:00:06,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 17071 transitions, 536501 flow [2025-03-14 23:00:06,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2025-03-14 23:00:06,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2025-03-14 23:00:06,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 4670 transitions. [2025-03-14 23:00:06,441 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.34767718880285886 [2025-03-14 23:00:06,441 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 262 predicate places. [2025-03-14 23:00:06,441 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 17071 transitions, 536501 flow [2025-03-14 23:00:06,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 62.824561403508774) internal successors, (3581), 57 states have internal predecessors, (3581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 23:00:06,442 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 23:00:06,443 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 23:00:06,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-14 23:00:06,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-14 23:00:06,644 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 23:00:06,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 23:00:06,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1844525068, now seen corresponding path program 2 times [2025-03-14 23:00:06,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 23:00:06,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054294316] [2025-03-14 23:00:06,645 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 23:00:06,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 23:00:06,687 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 23:00:06,687 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 23:00:07,877 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 23:00:07,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 23:00:07,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054294316] [2025-03-14 23:00:07,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054294316] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 23:00:07,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819205280] [2025-03-14 23:00:07,878 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 23:00:07,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 23:00:07,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 23:00:07,884 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 23:00:07,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-14 23:00:07,988 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 23:00:07,989 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 23:00:07,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 64 conjuncts are in the unsatisfiable core [2025-03-14 23:00:07,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 23:00:08,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-14 23:00:09,488 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 23:00:09,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2025-03-14 23:00:09,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 23:00:09,519 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 23:00:10,386 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 23:00:10,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 256 treesize of output 240 [2025-03-14 23:00:10,543 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-14 23:00:10,551 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 23:00:10,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 83 [2025-03-14 23:00:10,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-14 23:00:10,587 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 23:00:10,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 156 treesize of output 122 [2025-03-14 23:00:10,635 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 23:00:10,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 300 treesize of output 260 [2025-03-14 23:00:10,644 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 23:00:10,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 252 treesize of output 196 [2025-03-14 23:00:11,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 23:00:11,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819205280] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 23:00:11,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 23:00:11,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 30, 22] total 66 [2025-03-14 23:00:11,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488225984] [2025-03-14 23:00:11,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 23:00:11,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2025-03-14 23:00:11,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 23:00:11,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2025-03-14 23:00:11,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=3801, Unknown=0, NotChecked=0, Total=4290 [2025-03-14 23:00:11,157 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 184 [2025-03-14 23:00:11,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 17071 transitions, 536501 flow. Second operand has 66 states, 66 states have (on average 57.45454545454545) internal successors, (3792), 66 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 23:00:11,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 23:00:11,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 184 [2025-03-14 23:00:11,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 23:04:15,511 INFO L124 PetriNetUnfolderBase]: 57689/96970 cut-off events. [2025-03-14 23:04:15,511 INFO L125 PetriNetUnfolderBase]: For 1263099/1297487 co-relation queries the response was YES. [2025-03-14 23:04:15,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1363461 conditions, 96970 events. 57689/96970 cut-off events. For 1263099/1297487 co-relation queries the response was YES. Maximal size of possible extension queue 3938. Compared 901318 event pairs, 835 based on Foata normal form. 922/89083 useless extension candidates. Maximal degree in co-relation 1002649. Up to 65231 conditions per place. [2025-03-14 23:04:17,381 INFO L140 encePairwiseOnDemand]: 110/184 looper letters, 19522 selfloop transitions, 5082 changer transitions 168/24819 dead transitions. [2025-03-14 23:04:17,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 578 places, 24819 transitions, 818036 flow [2025-03-14 23:04:17,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2025-03-14 23:04:17,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2025-03-14 23:04:17,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 7805 transitions. [2025-03-14 23:04:17,398 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.31655580791693705 [2025-03-14 23:04:17,398 INFO L298 CegarLoopForPetriNet]: 183 programPoint places, 395 predicate places. [2025-03-14 23:04:17,399 INFO L471 AbstractCegarLoop]: Abstraction has has 578 places, 24819 transitions, 818036 flow [2025-03-14 23:04:17,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 57.45454545454545) internal successors, (3792), 66 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 23:04:17,401 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 23:04:17,401 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 23:04:17,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-14 23:04:17,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-14 23:04:17,605 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 23:04:17,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 23:04:17,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1627566042, now seen corresponding path program 3 times [2025-03-14 23:04:17,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 23:04:17,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542448654] [2025-03-14 23:04:17,607 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 23:04:17,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 23:04:17,738 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 23:04:17,739 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 23:04:19,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 23:04:19,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 23:04:19,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542448654] [2025-03-14 23:04:19,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542448654] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 23:04:19,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 23:04:19,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2025-03-14 23:04:19,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314376405] [2025-03-14 23:04:19,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 23:04:19,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-14 23:04:19,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 23:04:19,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-14 23:04:19,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=584, Unknown=0, NotChecked=0, Total=702 [2025-03-14 23:04:19,025 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 184 [2025-03-14 23:04:19,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 24819 transitions, 818036 flow. Second operand has 27 states, 27 states have (on average 74.51851851851852) internal successors, (2012), 27 states have internal predecessors, (2012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 23:04:19,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 23:04:19,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 184 [2025-03-14 23:04:19,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2025-03-14 23:10:44,253 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2025-03-14 23:10:44,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2025-03-14 23:10:44,643 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-03-14 23:10:44,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-14 23:10:44,644 WARN L596 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 71/184 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 1298830 conditions, 87241 events (51943/87240 cut-off events. For 1186291/1237647 co-relation queries the response was YES. Maximal size of possible extension queue 3975. Compared 829024 event pairs, 742 based on Foata normal form. 1022/81382 useless extension candidates. Maximal degree in co-relation 943809. Up to 69039 conditions per place.). [2025-03-14 23:10:44,651 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-03-14 23:10:44,651 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-03-14 23:10:44,651 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-03-14 23:10:44,651 INFO L422 BasicCegarLoop]: Path program histogram: [12, 3, 1, 1, 1, 1] [2025-03-14 23:10:44,662 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-14 23:10:44,662 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-14 23:10:44,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.03 11:10:44 BasicIcfg [2025-03-14 23:10:44,674 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-14 23:10:44,675 INFO L158 Benchmark]: Toolchain (without parser) took 804119.15ms. Allocated memory was 71.3MB in the beginning and 3.3GB in the end (delta: 3.2GB). Free memory was 43.8MB in the beginning and 329.3MB in the end (delta: -285.5MB). Peak memory consumption was 3.6GB. Max. memory is 8.0GB. [2025-03-14 23:10:44,675 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 71.3MB. Free memory is still 33.7MB. There was no memory consumed. Max. memory is 8.0GB. [2025-03-14 23:10:44,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.53ms. Allocated memory is still 71.3MB. Free memory was 43.6MB in the beginning and 31.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-03-14 23:10:44,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.79ms. Allocated memory is still 71.3MB. Free memory was 31.4MB in the beginning and 29.2MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-14 23:10:44,678 INFO L158 Benchmark]: Boogie Preprocessor took 26.49ms. Allocated memory is still 71.3MB. Free memory was 29.2MB in the beginning and 27.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-14 23:10:44,679 INFO L158 Benchmark]: RCFGBuilder took 623.93ms. Allocated memory is still 71.3MB. Free memory was 27.5MB in the beginning and 19.6MB in the end (delta: 7.9MB). Peak memory consumption was 19.0MB. Max. memory is 8.0GB. [2025-03-14 23:10:44,679 INFO L158 Benchmark]: TraceAbstraction took 803236.64ms. Allocated memory was 71.3MB in the beginning and 3.3GB in the end (delta: 3.2GB). Free memory was 18.3MB in the beginning and 329.3MB in the end (delta: -310.9MB). Peak memory consumption was 3.6GB. Max. memory is 8.0GB. [2025-03-14 23:10:44,681 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 71.3MB. Free memory is still 33.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 192.53ms. Allocated memory is still 71.3MB. Free memory was 43.6MB in the beginning and 31.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.79ms. Allocated memory is still 71.3MB. Free memory was 31.4MB in the beginning and 29.2MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.49ms. Allocated memory is still 71.3MB. Free memory was 29.2MB in the beginning and 27.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 623.93ms. Allocated memory is still 71.3MB. Free memory was 27.5MB in the beginning and 19.6MB in the end (delta: 7.9MB). Peak memory consumption was 19.0MB. Max. memory is 8.0GB. * TraceAbstraction took 803236.64ms. Allocated memory was 71.3MB in the beginning and 3.3GB in the end (delta: 3.2GB). Free memory was 18.3MB in the beginning and 329.3MB in the end (delta: -310.9MB). Peak memory consumption was 3.6GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 71/184 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 1298830 conditions, 87241 events (51943/87240 cut-off events. For 1186291/1237647 co-relation queries the response was YES. Maximal size of possible extension queue 3975. Compared 829024 event pairs, 742 based on Foata normal form. 1022/81382 useless extension candidates. Maximal degree in co-relation 943809. Up to 69039 conditions per place.). - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 71/184 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 1298830 conditions, 87241 events (51943/87240 cut-off events. For 1186291/1237647 co-relation queries the response was YES. Maximal size of possible extension queue 3975. Compared 829024 event pairs, 742 based on Foata normal form. 1022/81382 useless extension candidates. Maximal degree in co-relation 943809. Up to 69039 conditions per place.). - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 71/184 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 1298830 conditions, 87241 events (51943/87240 cut-off events. For 1186291/1237647 co-relation queries the response was YES. Maximal size of possible extension queue 3975. Compared 829024 event pairs, 742 based on Foata normal form. 1022/81382 useless extension candidates. Maximal degree in co-relation 943809. Up to 69039 conditions per place.). - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 71/184 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 1298830 conditions, 87241 events (51943/87240 cut-off events. For 1186291/1237647 co-relation queries the response was YES. Maximal size of possible extension queue 3975. Compared 829024 event pairs, 742 based on Foata normal form. 1022/81382 useless extension candidates. Maximal degree in co-relation 943809. Up to 69039 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 210 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 803.1s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 786.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4878 SdHoareTripleChecker+Valid, 6.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4878 mSDsluCounter, 10404 SdHoareTripleChecker+Invalid, 5.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9121 mSDsCounter, 283 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13557 IncrementalHoareTripleChecker+Invalid, 13840 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 283 mSolverCounterUnsat, 1283 mSDtfsCounter, 13557 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3361 GetRequests, 2683 SyntacticMatches, 12 SemanticMatches, 666 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18125 ImplicationChecksByTransitivity, 9.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=818036occurred in iteration=18, InterpolantAutomatonStates: 436, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 13.5s InterpolantComputationTime, 4284 NumberOfCodeBlocks, 4123 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 5643 ConstructedInterpolants, 41 QuantifiedInterpolants, 25051 SizeOfPredicates, 125 NumberOfNonLiveVariables, 2988 ConjunctsInSsa, 165 ConjunctsInUnsatCore, 37 InterpolantComputations, 16 PerfectInterpolantSequences, 59/91 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown