/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-sum-alt2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-14 22:56:23,427 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 22:56:23,463 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 22:56:23,516 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 22:56:23,517 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 22:56:23,517 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 22:56:23,519 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 22:56:23,519 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 22:56:23,519 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 22:56:23,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 22:56:23,520 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 22:56:23,520 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 22:56:23,520 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 22:56:23,520 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 22:56:23,520 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 22:56:23,520 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 22:56:23,520 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 22:56:23,520 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 22:56:23,520 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 22:56:23,520 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 22:56:23,520 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 22:56:23,520 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-14 22:56:23,520 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 22:56:23,520 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-14 22:56:23,520 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 22:56:23,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-14 22:56:23,521 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 22:56:23,521 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 22:56:23,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 22:56:23,521 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 22:56:23,521 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 22:56:23,521 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 22:56:23,521 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 22:56:23,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 22:56:23,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 22:56:23,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 22:56:23,787 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 22:56:23,787 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 22:56:23,789 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-array-sum-alt2.wvr.c [2025-03-14 22:56:24,974 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9fa439ce/c8c8bcd6f9ed42e8a2e1c4f018724c92/FLAG19076e600 [2025-03-14 22:56:25,160 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 22:56:25,161 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum-alt2.wvr.c [2025-03-14 22:56:25,167 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9fa439ce/c8c8bcd6f9ed42e8a2e1c4f018724c92/FLAG19076e600 [2025-03-14 22:56:25,186 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9fa439ce/c8c8bcd6f9ed42e8a2e1c4f018724c92 [2025-03-14 22:56:25,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 22:56:25,189 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-14 22:56:25,190 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 22:56:25,190 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 22:56:25,195 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 22:56:25,196 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 10:56:25" (1/1) ... [2025-03-14 22:56:25,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@518cf3a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:56:25, skipping insertion in model container [2025-03-14 22:56:25,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 10:56:25" (1/1) ... [2025-03-14 22:56:25,211 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 22:56:25,342 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-sum-alt2.wvr.c[2564,2577] [2025-03-14 22:56:25,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 22:56:25,356 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 22:56:25,372 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-sum-alt2.wvr.c[2564,2577] [2025-03-14 22:56:25,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 22:56:25,387 INFO L204 MainTranslator]: Completed translation [2025-03-14 22:56:25,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:56:25 WrapperNode [2025-03-14 22:56:25,388 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 22:56:25,388 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 22:56:25,388 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 22:56:25,389 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 22:56:25,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:56:25" (1/1) ... [2025-03-14 22:56:25,399 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:56:25" (1/1) ... [2025-03-14 22:56:25,422 INFO L138 Inliner]: procedures = 24, calls = 30, calls flagged for inlining = 12, calls inlined = 16, statements flattened = 170 [2025-03-14 22:56:25,423 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 22:56:25,423 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 22:56:25,423 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 22:56:25,423 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 22:56:25,429 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:56:25" (1/1) ... [2025-03-14 22:56:25,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:56:25" (1/1) ... [2025-03-14 22:56:25,435 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:56:25" (1/1) ... [2025-03-14 22:56:25,435 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:56:25" (1/1) ... [2025-03-14 22:56:25,439 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:56:25" (1/1) ... [2025-03-14 22:56:25,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:56:25" (1/1) ... [2025-03-14 22:56:25,446 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:56:25" (1/1) ... [2025-03-14 22:56:25,451 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:56:25" (1/1) ... [2025-03-14 22:56:25,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:56:25" (1/1) ... [2025-03-14 22:56:25,455 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 22:56:25,456 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-14 22:56:25,456 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-14 22:56:25,456 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-14 22:56:25,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:56:25" (1/1) ... [2025-03-14 22:56:25,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-14 22:56:25,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:56:25,483 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 22:56:25,488 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 22:56:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 22:56:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-14 22:56:25,505 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-14 22:56:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-14 22:56:25,505 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-14 22:56:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-14 22:56:25,505 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-14 22:56:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-14 22:56:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-14 22:56:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-14 22:56:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-14 22:56:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-14 22:56:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 22:56:25,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 22:56:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-14 22:56:25,506 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 22:56:25,589 INFO L234 CfgBuilder]: Building ICFG [2025-03-14 22:56:25,590 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 22:56:25,828 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 22:56:25,828 INFO L283 CfgBuilder]: Performing block encoding [2025-03-14 22:56:25,929 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 22:56:25,929 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 22:56:25,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.03 10:56:25 BoogieIcfgContainer [2025-03-14 22:56:25,931 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-14 22:56:25,934 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 22:56:25,934 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 22:56:25,938 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 22:56:25,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 10:56:25" (1/3) ... [2025-03-14 22:56:25,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e3e820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 10:56:25, skipping insertion in model container [2025-03-14 22:56:25,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:56:25" (2/3) ... [2025-03-14 22:56:25,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e3e820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 10:56:25, skipping insertion in model container [2025-03-14 22:56:25,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.03 10:56:25" (3/3) ... [2025-03-14 22:56:25,941 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum-alt2.wvr.c [2025-03-14 22:56:25,951 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 22:56:25,953 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-array-sum-alt2.wvr.c that has 4 procedures, 136 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-03-14 22:56:25,953 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 22:56:26,009 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-14 22:56:26,042 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 22:56:26,054 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;@2316c888, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 22:56:26,055 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-14 22:56:26,113 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 22:56:26,113 INFO L124 PetriNetUnfolderBase]: 8/134 cut-off events. [2025-03-14 22:56:26,115 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-14 22:56:26,115 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:56:26,116 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] [2025-03-14 22:56:26,116 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 22:56:26,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:56:26,121 INFO L85 PathProgramCache]: Analyzing trace with hash 948378300, now seen corresponding path program 1 times [2025-03-14 22:56:26,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:56:26,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357647021] [2025-03-14 22:56:26,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:56:26,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:56:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:56:26,684 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 22:56:26,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:56:26,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357647021] [2025-03-14 22:56:26,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357647021] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:56:26,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:56:26,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-14 22:56:26,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032762059] [2025-03-14 22:56:26,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:56:26,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 22:56:26,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:56:26,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 22:56:26,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-14 22:56:26,717 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 143 [2025-03-14 22:56:26,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 143 transitions, 307 flow. Second operand has 6 states, 6 states have (on average 104.33333333333333) internal successors, (626), 6 states have internal predecessors, (626), 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 22:56:26,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:56:26,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 143 [2025-03-14 22:56:26,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:56:26,950 INFO L124 PetriNetUnfolderBase]: 49/324 cut-off events. [2025-03-14 22:56:26,950 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2025-03-14 22:56:26,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 324 events. 49/324 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1090 event pairs, 7 based on Foata normal form. 8/307 useless extension candidates. Maximal degree in co-relation 202. Up to 47 conditions per place. [2025-03-14 22:56:26,959 INFO L140 encePairwiseOnDemand]: 126/143 looper letters, 49 selfloop transitions, 6 changer transitions 10/157 dead transitions. [2025-03-14 22:56:26,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 157 transitions, 489 flow [2025-03-14 22:56:26,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-14 22:56:26,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-14 22:56:26,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 965 transitions. [2025-03-14 22:56:26,972 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7498057498057498 [2025-03-14 22:56:26,974 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 0 predicate places. [2025-03-14 22:56:26,974 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 157 transitions, 489 flow [2025-03-14 22:56:26,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.33333333333333) internal successors, (626), 6 states have internal predecessors, (626), 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 22:56:26,975 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:56:26,975 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] [2025-03-14 22:56:26,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 22:56:26,975 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 22:56:26,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:56:26,976 INFO L85 PathProgramCache]: Analyzing trace with hash 552772974, now seen corresponding path program 1 times [2025-03-14 22:56:26,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:56:26,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206279343] [2025-03-14 22:56:26,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:56:26,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:56:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:56:27,169 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 22:56:27,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:56:27,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206279343] [2025-03-14 22:56:27,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206279343] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:56:27,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:56:27,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-14 22:56:27,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668208075] [2025-03-14 22:56:27,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:56:27,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 22:56:27,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:56:27,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 22:56:27,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-14 22:56:27,174 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 143 [2025-03-14 22:56:27,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 157 transitions, 489 flow. Second operand has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 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 22:56:27,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:56:27,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 143 [2025-03-14 22:56:27,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:56:27,550 INFO L124 PetriNetUnfolderBase]: 452/1586 cut-off events. [2025-03-14 22:56:27,550 INFO L125 PetriNetUnfolderBase]: For 552/627 co-relation queries the response was YES. [2025-03-14 22:56:27,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2897 conditions, 1586 events. 452/1586 cut-off events. For 552/627 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 11141 event pairs, 176 based on Foata normal form. 1/1361 useless extension candidates. Maximal degree in co-relation 1671. Up to 493 conditions per place. [2025-03-14 22:56:27,561 INFO L140 encePairwiseOnDemand]: 130/143 looper letters, 71 selfloop transitions, 14 changer transitions 11/194 dead transitions. [2025-03-14 22:56:27,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 194 transitions, 820 flow [2025-03-14 22:56:27,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-14 22:56:27,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-14 22:56:27,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1094 transitions. [2025-03-14 22:56:27,564 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.765034965034965 [2025-03-14 22:56:27,564 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 9 predicate places. [2025-03-14 22:56:27,564 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 194 transitions, 820 flow [2025-03-14 22:56:27,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 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 22:56:27,565 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:56:27,565 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] [2025-03-14 22:56:27,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 22:56:27,565 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 22:56:27,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:56:27,566 INFO L85 PathProgramCache]: Analyzing trace with hash 927094147, now seen corresponding path program 1 times [2025-03-14 22:56:27,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:56:27,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914232837] [2025-03-14 22:56:27,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:56:27,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:56:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:56:27,979 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 22:56:27,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:56:27,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914232837] [2025-03-14 22:56:27,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914232837] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:56:27,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:56:27,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-14 22:56:27,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683744619] [2025-03-14 22:56:27,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:56:27,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-14 22:56:27,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:56:27,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-14 22:56:27,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-03-14 22:56:27,982 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 143 [2025-03-14 22:56:27,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 194 transitions, 820 flow. Second operand has 11 states, 11 states have (on average 77.81818181818181) internal successors, (856), 11 states have internal predecessors, (856), 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 22:56:27,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:56:27,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 143 [2025-03-14 22:56:27,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:56:28,698 INFO L124 PetriNetUnfolderBase]: 1636/3461 cut-off events. [2025-03-14 22:56:28,698 INFO L125 PetriNetUnfolderBase]: For 3217/3668 co-relation queries the response was YES. [2025-03-14 22:56:28,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8725 conditions, 3461 events. 1636/3461 cut-off events. For 3217/3668 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 25296 event pairs, 1091 based on Foata normal form. 1/2819 useless extension candidates. Maximal degree in co-relation 6721. Up to 1844 conditions per place. [2025-03-14 22:56:28,768 INFO L140 encePairwiseOnDemand]: 126/143 looper letters, 120 selfloop transitions, 18 changer transitions 17/223 dead transitions. [2025-03-14 22:56:28,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 223 transitions, 1246 flow [2025-03-14 22:56:28,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-14 22:56:28,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-14 22:56:28,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1204 transitions. [2025-03-14 22:56:28,777 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5613053613053613 [2025-03-14 22:56:28,777 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 23 predicate places. [2025-03-14 22:56:28,777 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 223 transitions, 1246 flow [2025-03-14 22:56:28,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 77.81818181818181) internal successors, (856), 11 states have internal predecessors, (856), 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 22:56:28,778 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:56:28,778 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] [2025-03-14 22:56:28,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 22:56:28,778 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 22:56:28,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:56:28,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1881627142, now seen corresponding path program 1 times [2025-03-14 22:56:28,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:56:28,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131269569] [2025-03-14 22:56:28,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:56:28,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:56:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:56:29,110 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 22:56:29,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:56:29,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131269569] [2025-03-14 22:56:29,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131269569] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:56:29,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:56:29,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-14 22:56:29,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82034740] [2025-03-14 22:56:29,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:56:29,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 22:56:29,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:56:29,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 22:56:29,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-14 22:56:29,114 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 143 [2025-03-14 22:56:29,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 223 transitions, 1246 flow. Second operand has 10 states, 10 states have (on average 79.2) internal successors, (792), 10 states have internal predecessors, (792), 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 22:56:29,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:56:29,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 143 [2025-03-14 22:56:29,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:56:29,788 INFO L124 PetriNetUnfolderBase]: 1967/3683 cut-off events. [2025-03-14 22:56:29,788 INFO L125 PetriNetUnfolderBase]: For 6368/7047 co-relation queries the response was YES. [2025-03-14 22:56:29,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12033 conditions, 3683 events. 1967/3683 cut-off events. For 6368/7047 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 24802 event pairs, 1266 based on Foata normal form. 0/2934 useless extension candidates. Maximal degree in co-relation 8728. Up to 2325 conditions per place. [2025-03-14 22:56:29,809 INFO L140 encePairwiseOnDemand]: 126/143 looper letters, 89 selfloop transitions, 10 changer transitions 57/223 dead transitions. [2025-03-14 22:56:29,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 223 transitions, 1561 flow [2025-03-14 22:56:29,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-14 22:56:29,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-14 22:56:29,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1143 transitions. [2025-03-14 22:56:29,811 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.570929070929071 [2025-03-14 22:56:29,812 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 36 predicate places. [2025-03-14 22:56:29,812 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 223 transitions, 1561 flow [2025-03-14 22:56:29,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 79.2) internal successors, (792), 10 states have internal predecessors, (792), 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 22:56:29,813 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:56:29,813 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] [2025-03-14 22:56:29,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 22:56:29,814 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 22:56:29,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:56:29,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1025520852, now seen corresponding path program 1 times [2025-03-14 22:56:29,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:56:29,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687352985] [2025-03-14 22:56:29,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:56:29,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:56:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:56:29,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:56:29,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:56:29,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687352985] [2025-03-14 22:56:29,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687352985] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:56:29,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392764087] [2025-03-14 22:56:29,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:56:29,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:56:29,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:56:29,945 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 22:56:29,946 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 22:56:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:56:30,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-14 22:56:30,040 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:56:30,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:56:30,281 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:56:30,448 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 22:56:30,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392764087] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:56:30,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:56:30,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2025-03-14 22:56:30,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892244983] [2025-03-14 22:56:30,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:56:30,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 22:56:30,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:56:30,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 22:56:30,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2025-03-14 22:56:30,450 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 143 [2025-03-14 22:56:30,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 223 transitions, 1561 flow. Second operand has 9 states, 9 states have (on average 98.88888888888889) internal successors, (890), 9 states have internal predecessors, (890), 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 22:56:30,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:56:30,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 143 [2025-03-14 22:56:30,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:56:31,133 INFO L124 PetriNetUnfolderBase]: 3077/5347 cut-off events. [2025-03-14 22:56:31,133 INFO L125 PetriNetUnfolderBase]: For 11192/12781 co-relation queries the response was YES. [2025-03-14 22:56:31,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22015 conditions, 5347 events. 3077/5347 cut-off events. For 11192/12781 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 35637 event pairs, 751 based on Foata normal form. 38/4238 useless extension candidates. Maximal degree in co-relation 16514. Up to 3638 conditions per place. [2025-03-14 22:56:31,180 INFO L140 encePairwiseOnDemand]: 126/143 looper letters, 171 selfloop transitions, 27 changer transitions 59/347 dead transitions. [2025-03-14 22:56:31,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 347 transitions, 3189 flow [2025-03-14 22:56:31,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-14 22:56:31,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-14 22:56:31,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1066 transitions. [2025-03-14 22:56:31,183 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7454545454545455 [2025-03-14 22:56:31,183 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 45 predicate places. [2025-03-14 22:56:31,183 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 347 transitions, 3189 flow [2025-03-14 22:56:31,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 98.88888888888889) internal successors, (890), 9 states have internal predecessors, (890), 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 22:56:31,184 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:56:31,184 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] [2025-03-14 22:56:31,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-14 22:56:31,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:56:31,385 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 22:56:31,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:56:31,386 INFO L85 PathProgramCache]: Analyzing trace with hash 607281334, now seen corresponding path program 2 times [2025-03-14 22:56:31,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:56:31,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442470353] [2025-03-14 22:56:31,386 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:56:31,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:56:31,400 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 22:56:31,400 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:56:31,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:56:31,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:56:31,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442470353] [2025-03-14 22:56:31,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442470353] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:56:31,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:56:31,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-14 22:56:31,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850983530] [2025-03-14 22:56:31,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:56:31,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-14 22:56:31,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:56:31,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-14 22:56:31,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-14 22:56:31,488 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 143 [2025-03-14 22:56:31,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 347 transitions, 3189 flow. Second operand has 8 states, 8 states have (on average 108.125) internal successors, (865), 8 states have internal predecessors, (865), 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 22:56:31,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:56:31,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 143 [2025-03-14 22:56:31,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:56:32,508 INFO L124 PetriNetUnfolderBase]: 4535/7630 cut-off events. [2025-03-14 22:56:32,508 INFO L125 PetriNetUnfolderBase]: For 13486/16831 co-relation queries the response was YES. [2025-03-14 22:56:32,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35944 conditions, 7630 events. 4535/7630 cut-off events. For 13486/16831 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 50947 event pairs, 558 based on Foata normal form. 20/6614 useless extension candidates. Maximal degree in co-relation 33575. Up to 4719 conditions per place. [2025-03-14 22:56:32,565 INFO L140 encePairwiseOnDemand]: 132/143 looper letters, 519 selfloop transitions, 37 changer transitions 67/727 dead transitions. [2025-03-14 22:56:32,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 727 transitions, 7880 flow [2025-03-14 22:56:32,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-14 22:56:32,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-14 22:56:32,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1309 transitions. [2025-03-14 22:56:32,568 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8321678321678322 [2025-03-14 22:56:32,569 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 55 predicate places. [2025-03-14 22:56:32,569 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 727 transitions, 7880 flow [2025-03-14 22:56:32,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 108.125) internal successors, (865), 8 states have internal predecessors, (865), 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 22:56:32,571 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:56:32,571 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] [2025-03-14 22:56:32,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-14 22:56:32,571 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 22:56:32,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:56:32,572 INFO L85 PathProgramCache]: Analyzing trace with hash -342715375, now seen corresponding path program 1 times [2025-03-14 22:56:32,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:56:32,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814915244] [2025-03-14 22:56:32,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:56:32,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:56:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:56:32,674 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 22:56:32,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:56:32,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814915244] [2025-03-14 22:56:32,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814915244] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:56:32,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142306700] [2025-03-14 22:56:32,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:56:32,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:56:32,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:56:32,677 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 22:56:32,679 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 22:56:32,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:56:32,745 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-14 22:56:32,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:56:32,872 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 22:56:32,873 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:56:33,005 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 22:56:33,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142306700] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:56:33,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:56:33,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2025-03-14 22:56:33,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834097673] [2025-03-14 22:56:33,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:56:33,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 22:56:33,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:56:33,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 22:56:33,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-03-14 22:56:33,007 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 143 [2025-03-14 22:56:33,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 727 transitions, 7880 flow. Second operand has 7 states, 7 states have (on average 107.14285714285714) internal successors, (750), 7 states have internal predecessors, (750), 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 22:56:33,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:56:33,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 143 [2025-03-14 22:56:33,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:56:33,780 INFO L124 PetriNetUnfolderBase]: 3707/6396 cut-off events. [2025-03-14 22:56:33,780 INFO L125 PetriNetUnfolderBase]: For 15701/18791 co-relation queries the response was YES. [2025-03-14 22:56:33,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32532 conditions, 6396 events. 3707/6396 cut-off events. For 15701/18791 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 41549 event pairs, 467 based on Foata normal form. 36/5685 useless extension candidates. Maximal degree in co-relation 27959. Up to 3749 conditions per place. [2025-03-14 22:56:33,844 INFO L140 encePairwiseOnDemand]: 132/143 looper letters, 337 selfloop transitions, 32 changer transitions 57/705 dead transitions. [2025-03-14 22:56:33,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 705 transitions, 8366 flow [2025-03-14 22:56:33,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-14 22:56:33,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-14 22:56:33,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 780 transitions. [2025-03-14 22:56:33,846 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7792207792207793 [2025-03-14 22:56:33,847 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 60 predicate places. [2025-03-14 22:56:33,847 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 705 transitions, 8366 flow [2025-03-14 22:56:33,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 107.14285714285714) internal successors, (750), 7 states have internal predecessors, (750), 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 22:56:33,847 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:56:33,847 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] [2025-03-14 22:56:33,853 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 22:56:34,048 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 22:56:34,048 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 22:56:34,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:56:34,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1100932972, now seen corresponding path program 3 times [2025-03-14 22:56:34,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:56:34,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360382319] [2025-03-14 22:56:34,049 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:56:34,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:56:34,065 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 22:56:34,066 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:56:34,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:56:34,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:56:34,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360382319] [2025-03-14 22:56:34,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360382319] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:56:34,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:56:34,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-14 22:56:34,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437754898] [2025-03-14 22:56:34,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:56:34,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-14 22:56:34,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:56:34,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-14 22:56:34,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-14 22:56:34,160 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 143 [2025-03-14 22:56:34,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 705 transitions, 8366 flow. Second operand has 8 states, 8 states have (on average 108.125) internal successors, (865), 8 states have internal predecessors, (865), 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 22:56:34,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:56:34,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 143 [2025-03-14 22:56:34,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:56:35,295 INFO L124 PetriNetUnfolderBase]: 4731/8238 cut-off events. [2025-03-14 22:56:35,295 INFO L125 PetriNetUnfolderBase]: For 23612/27901 co-relation queries the response was YES. [2025-03-14 22:56:35,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48759 conditions, 8238 events. 4731/8238 cut-off events. For 23612/27901 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 57426 event pairs, 202 based on Foata normal form. 67/7314 useless extension candidates. Maximal degree in co-relation 41692. Up to 4857 conditions per place. [2025-03-14 22:56:35,359 INFO L140 encePairwiseOnDemand]: 132/143 looper letters, 694 selfloop transitions, 56 changer transitions 57/905 dead transitions. [2025-03-14 22:56:35,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 905 transitions, 12301 flow [2025-03-14 22:56:35,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-14 22:56:35,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-14 22:56:35,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1793 transitions. [2025-03-14 22:56:35,362 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8358974358974359 [2025-03-14 22:56:35,366 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 74 predicate places. [2025-03-14 22:56:35,366 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 905 transitions, 12301 flow [2025-03-14 22:56:35,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 108.125) internal successors, (865), 8 states have internal predecessors, (865), 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 22:56:35,366 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:56:35,366 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] [2025-03-14 22:56:35,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-14 22:56:35,367 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 22:56:35,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:56:35,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1177187992, now seen corresponding path program 4 times [2025-03-14 22:56:35,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:56:35,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410021194] [2025-03-14 22:56:35,367 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:56:35,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:56:35,378 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:56:35,379 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:56:35,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:56:35,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:56:35,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410021194] [2025-03-14 22:56:35,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410021194] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:56:35,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890860781] [2025-03-14 22:56:35,482 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:56:35,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:56:35,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:56:35,485 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 22:56:35,486 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 22:56:35,548 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:56:35,548 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:56:35,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-14 22:56:35,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:56:35,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:56:35,730 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:56:35,890 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 22:56:35,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890860781] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:56:35,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:56:35,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11, 9] total 21 [2025-03-14 22:56:35,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038950753] [2025-03-14 22:56:35,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:56:35,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 22:56:35,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:56:35,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 22:56:35,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2025-03-14 22:56:35,892 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 143 [2025-03-14 22:56:35,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 905 transitions, 12301 flow. Second operand has 9 states, 9 states have (on average 98.88888888888889) internal successors, (890), 9 states have internal predecessors, (890), 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 22:56:35,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:56:35,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 143 [2025-03-14 22:56:35,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:56:37,748 INFO L124 PetriNetUnfolderBase]: 7391/12736 cut-off events. [2025-03-14 22:56:37,748 INFO L125 PetriNetUnfolderBase]: For 45343/48528 co-relation queries the response was YES. [2025-03-14 22:56:37,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84981 conditions, 12736 events. 7391/12736 cut-off events. For 45343/48528 co-relation queries the response was YES. Maximal size of possible extension queue 568. Compared 93855 event pairs, 359 based on Foata normal form. 52/11300 useless extension candidates. Maximal degree in co-relation 81484. Up to 7671 conditions per place. [2025-03-14 22:56:37,854 INFO L140 encePairwiseOnDemand]: 128/143 looper letters, 1295 selfloop transitions, 279 changer transitions 57/1754 dead transitions. [2025-03-14 22:56:37,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 1754 transitions, 28550 flow [2025-03-14 22:56:37,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 22:56:37,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 22:56:37,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1376 transitions. [2025-03-14 22:56:37,856 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7401828940290479 [2025-03-14 22:56:37,857 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 86 predicate places. [2025-03-14 22:56:37,857 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 1754 transitions, 28550 flow [2025-03-14 22:56:37,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 98.88888888888889) internal successors, (890), 9 states have internal predecessors, (890), 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 22:56:37,857 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:56:37,857 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] [2025-03-14 22:56:37,864 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 22:56:38,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:56:38,062 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 22:56:38,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:56:38,063 INFO L85 PathProgramCache]: Analyzing trace with hash 553244842, now seen corresponding path program 5 times [2025-03-14 22:56:38,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:56:38,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934017087] [2025-03-14 22:56:38,063 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:56:38,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:56:38,076 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:56:38,077 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:56:38,140 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 22:56:38,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:56:38,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934017087] [2025-03-14 22:56:38,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934017087] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:56:38,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403739184] [2025-03-14 22:56:38,141 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:56:38,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:56:38,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:56:38,143 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 22:56:38,145 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 22:56:38,203 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:56:38,204 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:56:38,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-14 22:56:38,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:56:38,245 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 22:56:38,245 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:56:38,303 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 22:56:38,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403739184] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:56:38,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:56:38,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 13 [2025-03-14 22:56:38,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520070710] [2025-03-14 22:56:38,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:56:38,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 22:56:38,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:56:38,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 22:56:38,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2025-03-14 22:56:38,304 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 143 [2025-03-14 22:56:38,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 1754 transitions, 28550 flow. Second operand has 7 states, 7 states have (on average 108.57142857142857) internal successors, (760), 7 states have internal predecessors, (760), 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 22:56:38,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:56:38,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 143 [2025-03-14 22:56:38,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:56:41,705 INFO L124 PetriNetUnfolderBase]: 9249/16403 cut-off events. [2025-03-14 22:56:41,706 INFO L125 PetriNetUnfolderBase]: For 56645/61729 co-relation queries the response was YES. [2025-03-14 22:56:41,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121393 conditions, 16403 events. 9249/16403 cut-off events. For 56645/61729 co-relation queries the response was YES. Maximal size of possible extension queue 705. Compared 129679 event pairs, 182 based on Foata normal form. 135/14802 useless extension candidates. Maximal degree in co-relation 105362. Up to 9575 conditions per place. [2025-03-14 22:56:41,866 INFO L140 encePairwiseOnDemand]: 129/143 looper letters, 2263 selfloop transitions, 833 changer transitions 113/3307 dead transitions. [2025-03-14 22:56:41,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 3307 transitions, 59215 flow [2025-03-14 22:56:41,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-14 22:56:41,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-03-14 22:56:41,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2219 transitions. [2025-03-14 22:56:41,870 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8167096061832904 [2025-03-14 22:56:41,870 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 104 predicate places. [2025-03-14 22:56:41,870 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 3307 transitions, 59215 flow [2025-03-14 22:56:41,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.57142857142857) internal successors, (760), 7 states have internal predecessors, (760), 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 22:56:41,871 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:56:41,871 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] [2025-03-14 22:56:41,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-14 22:56:42,071 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 22:56:42,072 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 22:56:42,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:56:42,072 INFO L85 PathProgramCache]: Analyzing trace with hash 252530934, now seen corresponding path program 6 times [2025-03-14 22:56:42,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:56:42,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529454247] [2025-03-14 22:56:42,072 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 22:56:42,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:56:42,082 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-14 22:56:42,082 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:56:42,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:56:42,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:56:42,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529454247] [2025-03-14 22:56:42,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529454247] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:56:42,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:56:42,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-14 22:56:42,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535697333] [2025-03-14 22:56:42,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:56:42,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-14 22:56:42,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:56:42,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-14 22:56:42,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-14 22:56:42,148 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 143 [2025-03-14 22:56:42,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 3307 transitions, 59215 flow. Second operand has 8 states, 8 states have (on average 108.125) internal successors, (865), 8 states have internal predecessors, (865), 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 22:56:42,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:56:42,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 143 [2025-03-14 22:56:42,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:56:49,286 INFO L124 PetriNetUnfolderBase]: 13102/22658 cut-off events. [2025-03-14 22:56:49,287 INFO L125 PetriNetUnfolderBase]: For 81716/90131 co-relation queries the response was YES. [2025-03-14 22:56:49,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189850 conditions, 22658 events. 13102/22658 cut-off events. For 81716/90131 co-relation queries the response was YES. Maximal size of possible extension queue 1029. Compared 183774 event pairs, 123 based on Foata normal form. 179/20444 useless extension candidates. Maximal degree in co-relation 184951. Up to 13495 conditions per place. [2025-03-14 22:56:49,523 INFO L140 encePairwiseOnDemand]: 129/143 looper letters, 3666 selfloop transitions, 725 changer transitions 113/4602 dead transitions. [2025-03-14 22:56:49,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 4602 transitions, 91166 flow [2025-03-14 22:56:49,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-14 22:56:49,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-03-14 22:56:49,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2044 transitions. [2025-03-14 22:56:49,526 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8408062525709584 [2025-03-14 22:56:49,526 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 120 predicate places. [2025-03-14 22:56:49,527 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 4602 transitions, 91166 flow [2025-03-14 22:56:49,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 108.125) internal successors, (865), 8 states have internal predecessors, (865), 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 22:56:49,527 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:56:49,527 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] [2025-03-14 22:56:49,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-14 22:56:49,527 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 22:56:49,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:56:49,528 INFO L85 PathProgramCache]: Analyzing trace with hash 272961610, now seen corresponding path program 7 times [2025-03-14 22:56:49,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:56:49,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875144417] [2025-03-14 22:56:49,528 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 22:56:49,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:56:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:56:49,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:56:49,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:56:49,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875144417] [2025-03-14 22:56:49,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875144417] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:56:49,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640570740] [2025-03-14 22:56:49,637 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 22:56:49,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:56:49,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:56:49,639 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 22:56:49,641 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 22:56:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:56:49,703 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-14 22:56:49,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:56:49,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:56:49,917 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:56:50,067 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 22:56:50,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640570740] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:56:50,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:56:50,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 20 [2025-03-14 22:56:50,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620909516] [2025-03-14 22:56:50,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:56:50,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 22:56:50,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:56:50,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 22:56:50,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2025-03-14 22:56:50,069 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 143 [2025-03-14 22:56:50,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 4602 transitions, 91166 flow. Second operand has 9 states, 9 states have (on average 98.88888888888889) internal successors, (890), 9 states have internal predecessors, (890), 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 22:56:50,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:56:50,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 143 [2025-03-14 22:56:50,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:56:59,846 INFO L124 PetriNetUnfolderBase]: 14580/25515 cut-off events. [2025-03-14 22:56:59,846 INFO L125 PetriNetUnfolderBase]: For 113421/124422 co-relation queries the response was YES. [2025-03-14 22:56:59,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229619 conditions, 25515 events. 14580/25515 cut-off events. For 113421/124422 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 212921 event pairs, 157 based on Foata normal form. 197/23062 useless extension candidates. Maximal degree in co-relation 201960. Up to 14906 conditions per place. [2025-03-14 22:57:00,126 INFO L140 encePairwiseOnDemand]: 127/143 looper letters, 3591 selfloop transitions, 903 changer transitions 113/5016 dead transitions. [2025-03-14 22:57:00,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 5016 transitions, 108836 flow [2025-03-14 22:57:00,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-14 22:57:00,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-14 22:57:00,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1176 transitions. [2025-03-14 22:57:00,128 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7476160203432931 [2025-03-14 22:57:00,128 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 130 predicate places. [2025-03-14 22:57:00,128 INFO L471 AbstractCegarLoop]: Abstraction has has 275 places, 5016 transitions, 108836 flow [2025-03-14 22:57:00,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 98.88888888888889) internal successors, (890), 9 states have internal predecessors, (890), 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 22:57:00,129 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:57:00,129 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] [2025-03-14 22:57:00,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-14 22:57:00,329 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 22:57:00,329 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 22:57:00,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:57:00,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1191728236, now seen corresponding path program 8 times [2025-03-14 22:57:00,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:57:00,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251255290] [2025-03-14 22:57:00,330 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:57:00,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:57:00,346 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:57:00,346 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:57:00,438 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 22:57:00,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:57:00,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251255290] [2025-03-14 22:57:00,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251255290] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:57:00,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478313346] [2025-03-14 22:57:00,439 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:57:00,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:57:00,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:57:00,441 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 22:57:00,442 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 22:57:00,500 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:57:00,500 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:57:00,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-14 22:57:00,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:57:00,604 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 22:57:00,604 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:57:00,753 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 22:57:00,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478313346] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:57:00,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:57:00,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 20 [2025-03-14 22:57:00,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121715954] [2025-03-14 22:57:00,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:57:00,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 22:57:00,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:57:00,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 22:57:00,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2025-03-14 22:57:00,755 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 143 [2025-03-14 22:57:00,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 5016 transitions, 108836 flow. Second operand has 9 states, 9 states have (on average 98.88888888888889) internal successors, (890), 9 states have internal predecessors, (890), 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 22:57:00,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:57:00,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 143 [2025-03-14 22:57:00,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:57:12,412 INFO L124 PetriNetUnfolderBase]: 14575/25468 cut-off events. [2025-03-14 22:57:12,412 INFO L125 PetriNetUnfolderBase]: For 137157/145593 co-relation queries the response was YES. [2025-03-14 22:57:12,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248183 conditions, 25468 events. 14575/25468 cut-off events. For 137157/145593 co-relation queries the response was YES. Maximal size of possible extension queue 1133. Compared 212032 event pairs, 154 based on Foata normal form. 154/23000 useless extension candidates. Maximal degree in co-relation 217212. Up to 14909 conditions per place. [2025-03-14 22:57:12,711 INFO L140 encePairwiseOnDemand]: 126/143 looper letters, 3314 selfloop transitions, 1188 changer transitions 113/5024 dead transitions. [2025-03-14 22:57:12,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 5024 transitions, 118216 flow [2025-03-14 22:57:12,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-14 22:57:12,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-14 22:57:12,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1065 transitions. [2025-03-14 22:57:12,712 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7447552447552448 [2025-03-14 22:57:12,713 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 139 predicate places. [2025-03-14 22:57:12,713 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 5024 transitions, 118216 flow [2025-03-14 22:57:12,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 98.88888888888889) internal successors, (890), 9 states have internal predecessors, (890), 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 22:57:12,713 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:57:12,713 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] [2025-03-14 22:57:12,719 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 22:57:12,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:57:12,914 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 22:57:12,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:57:12,915 INFO L85 PathProgramCache]: Analyzing trace with hash 354008830, now seen corresponding path program 9 times [2025-03-14 22:57:12,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:57:12,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761156976] [2025-03-14 22:57:12,915 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:57:12,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:57:12,941 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-14 22:57:12,941 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:57:13,025 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 22:57:13,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:57:13,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761156976] [2025-03-14 22:57:13,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761156976] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:57:13,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707159965] [2025-03-14 22:57:13,026 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:57:13,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:57:13,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:57:13,028 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 22:57:13,029 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 22:57:13,090 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-14 22:57:13,090 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:57:13,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-14 22:57:13,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:57:13,195 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 22:57:13,195 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:57:13,319 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 22:57:13,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707159965] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:57:13,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:57:13,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 19 [2025-03-14 22:57:13,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165044582] [2025-03-14 22:57:13,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:57:13,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 22:57:13,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:57:13,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 22:57:13,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2025-03-14 22:57:13,321 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 143 [2025-03-14 22:57:13,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 5024 transitions, 118216 flow. Second operand has 9 states, 9 states have (on average 98.88888888888889) internal successors, (890), 9 states have internal predecessors, (890), 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 22:57:13,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:57:13,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 143 [2025-03-14 22:57:13,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:57:25,552 INFO L124 PetriNetUnfolderBase]: 14365/24954 cut-off events. [2025-03-14 22:57:25,552 INFO L125 PetriNetUnfolderBase]: For 154217/161675 co-relation queries the response was YES. [2025-03-14 22:57:25,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262408 conditions, 24954 events. 14365/24954 cut-off events. For 154217/161675 co-relation queries the response was YES. Maximal size of possible extension queue 1099. Compared 205527 event pairs, 139 based on Foata normal form. 140/22539 useless extension candidates. Maximal degree in co-relation 256219. Up to 14689 conditions per place. [2025-03-14 22:57:25,870 INFO L140 encePairwiseOnDemand]: 125/143 looper letters, 3261 selfloop transitions, 1089 changer transitions 113/4872 dead transitions. [2025-03-14 22:57:25,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 4872 transitions, 123300 flow [2025-03-14 22:57:25,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-14 22:57:25,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-14 22:57:25,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1178 transitions. [2025-03-14 22:57:25,872 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7488874761602035 [2025-03-14 22:57:25,872 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 149 predicate places. [2025-03-14 22:57:25,872 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 4872 transitions, 123300 flow [2025-03-14 22:57:25,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 98.88888888888889) internal successors, (890), 9 states have internal predecessors, (890), 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 22:57:25,873 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:57:25,873 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] [2025-03-14 22:57:25,878 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 22:57:26,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:57:26,073 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 22:57:26,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:57:26,074 INFO L85 PathProgramCache]: Analyzing trace with hash -2075648108, now seen corresponding path program 10 times [2025-03-14 22:57:26,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:57:26,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58689156] [2025-03-14 22:57:26,074 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:57:26,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:57:26,082 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:57:26,083 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:57:26,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:57:26,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:57:26,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58689156] [2025-03-14 22:57:26,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58689156] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:57:26,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190499481] [2025-03-14 22:57:26,174 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:57:26,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:57:26,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:57:26,176 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 22:57:26,177 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 22:57:26,233 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:57:26,233 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:57:26,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-14 22:57:26,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:57:26,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:57:26,313 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:57:26,431 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 22:57:26,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190499481] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:57:26,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:57:26,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11, 9] total 21 [2025-03-14 22:57:26,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64423637] [2025-03-14 22:57:26,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:57:26,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 22:57:26,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:57:26,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 22:57:26,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2025-03-14 22:57:26,432 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 143 [2025-03-14 22:57:26,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 4872 transitions, 123300 flow. Second operand has 9 states, 9 states have (on average 98.88888888888889) internal successors, (890), 9 states have internal predecessors, (890), 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 22:57:26,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:57:26,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 143 [2025-03-14 22:57:26,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:57:38,203 INFO L124 PetriNetUnfolderBase]: 14175/24553 cut-off events. [2025-03-14 22:57:38,204 INFO L125 PetriNetUnfolderBase]: For 179380/187703 co-relation queries the response was YES. [2025-03-14 22:57:38,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276764 conditions, 24553 events. 14175/24553 cut-off events. For 179380/187703 co-relation queries the response was YES. Maximal size of possible extension queue 1073. Compared 201096 event pairs, 150 based on Foata normal form. 130/22208 useless extension candidates. Maximal degree in co-relation 242346. Up to 14479 conditions per place. [2025-03-14 22:57:38,511 INFO L140 encePairwiseOnDemand]: 128/143 looper letters, 3306 selfloop transitions, 917 changer transitions 113/4745 dead transitions. [2025-03-14 22:57:38,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 4745 transitions, 128586 flow [2025-03-14 22:57:38,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-14 22:57:38,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-14 22:57:38,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1160 transitions. [2025-03-14 22:57:38,512 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7374443738080102 [2025-03-14 22:57:38,512 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 159 predicate places. [2025-03-14 22:57:38,512 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 4745 transitions, 128586 flow [2025-03-14 22:57:38,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 98.88888888888889) internal successors, (890), 9 states have internal predecessors, (890), 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 22:57:38,513 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:57:38,513 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] [2025-03-14 22:57:38,519 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 22:57:38,713 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,SelfDestructingSolverStorable14 [2025-03-14 22:57:38,713 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 22:57:38,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:57:38,714 INFO L85 PathProgramCache]: Analyzing trace with hash 460930669, now seen corresponding path program 1 times [2025-03-14 22:57:38,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:57:38,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314224080] [2025-03-14 22:57:38,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:57:38,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:57:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:57:39,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:57:39,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:57:39,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314224080] [2025-03-14 22:57:39,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314224080] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:57:39,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:57:39,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-03-14 22:57:39,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406616075] [2025-03-14 22:57:39,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:57:39,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-14 22:57:39,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:57:39,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-14 22:57:39,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2025-03-14 22:57:39,112 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 143 [2025-03-14 22:57:39,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 4745 transitions, 128586 flow. Second operand has 17 states, 17 states have (on average 74.58823529411765) internal successors, (1268), 17 states have internal predecessors, (1268), 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 22:57:39,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:57:39,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 143 [2025-03-14 22:57:39,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:57:53,688 INFO L124 PetriNetUnfolderBase]: 17908/31501 cut-off events. [2025-03-14 22:57:53,688 INFO L125 PetriNetUnfolderBase]: For 308770/325090 co-relation queries the response was YES. [2025-03-14 22:57:53,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375941 conditions, 31501 events. 17908/31501 cut-off events. For 308770/325090 co-relation queries the response was YES. Maximal size of possible extension queue 1531. Compared 276359 event pairs, 175 based on Foata normal form. 315/28536 useless extension candidates. Maximal degree in co-relation 324197. Up to 19079 conditions per place. [2025-03-14 22:57:54,172 INFO L140 encePairwiseOnDemand]: 117/143 looper letters, 4893 selfloop transitions, 1432 changer transitions 149/7542 dead transitions. [2025-03-14 22:57:54,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 7542 transitions, 217429 flow [2025-03-14 22:57:54,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-14 22:57:54,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2025-03-14 22:57:54,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 2169 transitions. [2025-03-14 22:57:54,174 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5417082917082917 [2025-03-14 22:57:54,175 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 186 predicate places. [2025-03-14 22:57:54,175 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 7542 transitions, 217429 flow [2025-03-14 22:57:54,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 74.58823529411765) internal successors, (1268), 17 states have internal predecessors, (1268), 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 22:57:54,175 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:57:54,175 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] [2025-03-14 22:57:54,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-14 22:57:54,176 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 22:57:54,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:57:54,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1081671658, now seen corresponding path program 1 times [2025-03-14 22:57:54,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:57:54,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998880102] [2025-03-14 22:57:54,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:57:54,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:57:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:57:54,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:57:54,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:57:54,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998880102] [2025-03-14 22:57:54,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998880102] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:57:54,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274777849] [2025-03-14 22:57:54,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:57:54,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:57:54,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:57:54,870 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 22:57:54,872 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 22:57:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:57:54,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-03-14 22:57:54,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:57:55,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-14 22:57:55,436 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 22:57:55,436 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:57:55,629 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:57:55,629 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 23 treesize of output 16 [2025-03-14 22:57:55,831 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 22:57:55,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274777849] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:57:55,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:57:55,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 15, 14] total 42 [2025-03-14 22:57:55,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610612685] [2025-03-14 22:57:55,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:57:55,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2025-03-14 22:57:55,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:57:55,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2025-03-14 22:57:55,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1508, Unknown=0, NotChecked=0, Total=1722 [2025-03-14 22:57:55,833 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 143 [2025-03-14 22:57:55,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 7542 transitions, 217429 flow. Second operand has 42 states, 42 states have (on average 55.76190476190476) internal successors, (2342), 42 states have internal predecessors, (2342), 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 22:57:55,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:57:55,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 143 [2025-03-14 22:57:55,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:58:45,884 INFO L124 PetriNetUnfolderBase]: 30336/53409 cut-off events. [2025-03-14 22:58:45,884 INFO L125 PetriNetUnfolderBase]: For 662951/671016 co-relation queries the response was YES. [2025-03-14 22:58:46,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694771 conditions, 53409 events. 30336/53409 cut-off events. For 662951/671016 co-relation queries the response was YES. Maximal size of possible extension queue 2759. Compared 506868 event pairs, 326 based on Foata normal form. 416/48344 useless extension candidates. Maximal degree in co-relation 682447. Up to 33686 conditions per place. [2025-03-14 22:58:46,741 INFO L140 encePairwiseOnDemand]: 99/143 looper letters, 10475 selfloop transitions, 5714 changer transitions 224/16458 dead transitions. [2025-03-14 22:58:46,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 16458 transitions, 511780 flow [2025-03-14 22:58:46,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2025-03-14 22:58:46,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2025-03-14 22:58:46,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 5555 transitions. [2025-03-14 22:58:46,749 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.4089068825910931 [2025-03-14 22:58:46,750 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 280 predicate places. [2025-03-14 22:58:46,750 INFO L471 AbstractCegarLoop]: Abstraction has has 425 places, 16458 transitions, 511780 flow [2025-03-14 22:58:46,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 55.76190476190476) internal successors, (2342), 42 states have internal predecessors, (2342), 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 22:58:46,751 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:58:46,751 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] [2025-03-14 22:58:46,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-14 22:58:46,955 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,SelfDestructingSolverStorable16 [2025-03-14 22:58:46,955 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 22:58:46,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:58:46,956 INFO L85 PathProgramCache]: Analyzing trace with hash -980513814, now seen corresponding path program 2 times [2025-03-14 22:58:46,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:58:46,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412376259] [2025-03-14 22:58:46,956 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:58:46,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:58:46,971 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:58:46,971 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:58:47,443 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 22:58:47,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:58:47,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412376259] [2025-03-14 22:58:47,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412376259] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:58:47,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734905972] [2025-03-14 22:58:47,444 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:58:47,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:58:47,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:58:47,446 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 22:58:47,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-14 22:58:47,515 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:58:47,515 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:58:47,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 49 conjuncts are in the unsatisfiable core [2025-03-14 22:58:47,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:58:47,622 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 22:58:47,911 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:58:47,911 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 17 treesize of output 15 [2025-03-14 22:58:48,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:58:48,017 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:58:48,495 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 22:58:48,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734905972] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:58:48,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:58:48,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22, 15] total 40 [2025-03-14 22:58:48,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388124356] [2025-03-14 22:58:48,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:58:48,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2025-03-14 22:58:48,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:58:48,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2025-03-14 22:58:48,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=1327, Unknown=0, NotChecked=0, Total=1560 [2025-03-14 22:58:48,497 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 143 [2025-03-14 22:58:48,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 16458 transitions, 511780 flow. Second operand has 40 states, 40 states have (on average 57.225) internal successors, (2289), 40 states have internal predecessors, (2289), 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 22:58:48,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:58:48,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 143 [2025-03-14 22:58:48,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 23:02:18,922 INFO L124 PetriNetUnfolderBase]: 38643/67284 cut-off events. [2025-03-14 23:02:18,923 INFO L125 PetriNetUnfolderBase]: For 903818/915841 co-relation queries the response was YES. [2025-03-14 23:02:19,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 934834 conditions, 67284 events. 38643/67284 cut-off events. For 903818/915841 co-relation queries the response was YES. Maximal size of possible extension queue 3506. Compared 650012 event pairs, 315 based on Foata normal form. 944/61488 useless extension candidates. Maximal degree in co-relation 799598. Up to 42111 conditions per place. [2025-03-14 23:02:20,110 INFO L140 encePairwiseOnDemand]: 99/143 looper letters, 12378 selfloop transitions, 10156 changer transitions 317/22898 dead transitions. [2025-03-14 23:02:20,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 606 places, 22898 transitions, 746386 flow [2025-03-14 23:02:20,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2025-03-14 23:02:20,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2025-03-14 23:02:20,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 11104 transitions. [2025-03-14 23:02:20,118 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.42665027280411894 [2025-03-14 23:02:20,118 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 461 predicate places. [2025-03-14 23:02:20,118 INFO L471 AbstractCegarLoop]: Abstraction has has 606 places, 22898 transitions, 746386 flow [2025-03-14 23:02:20,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 57.225) internal successors, (2289), 40 states have internal predecessors, (2289), 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 23:02:20,119 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 23:02:20,119 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] [2025-03-14 23:02:20,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-14 23:02:20,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-14 23:02:20,323 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 23:02:20,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 23:02:20,324 INFO L85 PathProgramCache]: Analyzing trace with hash -491037306, now seen corresponding path program 3 times [2025-03-14 23:02:20,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 23:02:20,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130249458] [2025-03-14 23:02:20,324 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 23:02:20,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 23:02:20,342 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 23:02:20,342 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 23:02:20,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 23:02:20,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 23:02:20,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130249458] [2025-03-14 23:02:20,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130249458] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 23:02:20,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 23:02:20,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2025-03-14 23:02:20,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792687759] [2025-03-14 23:02:20,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 23:02:20,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-14 23:02:20,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 23:02:20,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-14 23:02:20,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2025-03-14 23:02:20,721 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 143 [2025-03-14 23:02:20,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 22898 transitions, 746386 flow. Second operand has 22 states, 22 states have (on average 62.18181818181818) internal successors, (1368), 22 states have internal predecessors, (1368), 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 23:02:20,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 23:02:20,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 143 [2025-03-14 23:02:20,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 23:08:14,892 INFO L124 PetriNetUnfolderBase]: 38899/67805 cut-off events. [2025-03-14 23:08:14,893 INFO L125 PetriNetUnfolderBase]: For 962377/971023 co-relation queries the response was YES. [2025-03-14 23:08:15,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1001186 conditions, 67805 events. 38899/67805 cut-off events. For 962377/971023 co-relation queries the response was YES. Maximal size of possible extension queue 3550. Compared 657114 event pairs, 310 based on Foata normal form. 350/61381 useless extension candidates. Maximal degree in co-relation 986100. Up to 42475 conditions per place. [2025-03-14 23:08:16,321 INFO L140 encePairwiseOnDemand]: 109/143 looper letters, 17959 selfloop transitions, 4822 changer transitions 350/23187 dead transitions. [2025-03-14 23:08:16,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 648 places, 23187 transitions, 801608 flow [2025-03-14 23:08:16,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2025-03-14 23:08:16,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2025-03-14 23:08:16,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 2925 transitions. [2025-03-14 23:08:16,341 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.47568710359408034 [2025-03-14 23:08:16,342 INFO L298 CegarLoopForPetriNet]: 145 programPoint places, 503 predicate places. [2025-03-14 23:08:16,343 INFO L471 AbstractCegarLoop]: Abstraction has has 648 places, 23187 transitions, 801608 flow [2025-03-14 23:08:16,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 62.18181818181818) internal successors, (1368), 22 states have internal predecessors, (1368), 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 23:08:16,348 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 23:08:16,348 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] [2025-03-14 23:08:16,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-14 23:08:16,348 INFO L396 AbstractCegarLoop]: === Iteration 20 === 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 23:08:16,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 23:08:16,350 INFO L85 PathProgramCache]: Analyzing trace with hash 925751478, now seen corresponding path program 4 times [2025-03-14 23:08:16,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 23:08:16,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017867633] [2025-03-14 23:08:16,350 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 23:08:16,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 23:08:16,478 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 23:08:16,481 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 23:08:17,735 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 23:08:17,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 23:08:17,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017867633] [2025-03-14 23:08:17,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017867633] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 23:08:17,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209841459] [2025-03-14 23:08:17,736 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 23:08:17,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 23:08:17,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 23:08:17,741 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 23:08:17,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-14 23:08:17,853 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 23:08:17,854 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 23:08:17,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 50 conjuncts are in the unsatisfiable core [2025-03-14 23:08:17,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 23:08:18,132 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 23:08:19,106 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 23:08:19,107 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 17 treesize of output 15 [2025-03-14 23:08:19,625 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 23:08:19,625 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 23:08:21,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2025-03-14 23:08:21,220 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 23:08:21,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 70 treesize of output 62 [2025-03-14 23:08:21,839 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 23:08:21,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209841459] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 23:08:21,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 23:08:21,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 25, 22] total 61 [2025-03-14 23:08:21,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067399254] [2025-03-14 23:08:21,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 23:08:21,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2025-03-14 23:08:21,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 23:08:21,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2025-03-14 23:08:21,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=542, Invalid=3118, Unknown=0, NotChecked=0, Total=3660 [2025-03-14 23:08:21,851 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 143 [2025-03-14 23:08:21,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 648 places, 23187 transitions, 801608 flow. Second operand has 61 states, 61 states have (on average 53.36065573770492) internal successors, (3255), 61 states have internal predecessors, (3255), 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 23:08:21,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 23:08:21,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 143 [2025-03-14 23:08:21,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2025-03-14 23:10:07,678 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 23:10:07,678 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2025-03-14 23:10:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2025-03-14 23:10:07,739 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-03-14 23:10:07,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-14 23:10:07,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 23:10:07,940 WARN L596 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (61states, 50/143 universal loopers) in iteration 20,while PetriNetUnfolder was constructing finite prefix that currently has 252963 conditions, 15976 events (8958/15975 cut-off events. For 220829/237152 co-relation queries the response was YES. Maximal size of possible extension queue 3130. Compared 154980 event pairs, 40 based on Foata normal form. 184/17273 useless extension candidates. Maximal degree in co-relation 241212. Up to 9726 conditions per place.). [2025-03-14 23:10:07,944 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-03-14 23:10:07,944 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-03-14 23:10:07,944 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-03-14 23:10:07,944 INFO L422 BasicCegarLoop]: Path program histogram: [10, 4, 1, 1, 1, 1, 1, 1] [2025-03-14 23:10:07,952 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-14 23:10:07,952 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-14 23:10:07,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.03 11:10:07 BasicIcfg [2025-03-14 23:10:07,959 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-14 23:10:07,960 INFO L158 Benchmark]: Toolchain (without parser) took 822770.48ms. Allocated memory was 71.3MB in the beginning and 3.0GB in the end (delta: 2.9GB). Free memory was 43.6MB in the beginning and 580.9MB in the end (delta: -537.3MB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2025-03-14 23:10:07,960 INFO L158 Benchmark]: CDTParser took 1.22ms. Allocated memory is still 71.3MB. Free memory is still 36.2MB. There was no memory consumed. Max. memory is 8.0GB. [2025-03-14 23:10:07,960 INFO L158 Benchmark]: CACSL2BoogieTranslator took 197.83ms. Allocated memory is still 71.3MB. Free memory was 43.4MB in the beginning and 31.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-03-14 23:10:07,961 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.45ms. Allocated memory is still 71.3MB. Free memory was 31.3MB in the beginning and 29.5MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-14 23:10:07,961 INFO L158 Benchmark]: Boogie Preprocessor took 32.20ms. Allocated memory is still 71.3MB. Free memory was 29.5MB in the beginning and 28.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-14 23:10:07,961 INFO L158 Benchmark]: RCFGBuilder took 475.45ms. Allocated memory is still 71.3MB. Free memory was 28.1MB in the beginning and 18.8MB in the end (delta: 9.3MB). Peak memory consumption was 15.6MB. Max. memory is 8.0GB. [2025-03-14 23:10:07,961 INFO L158 Benchmark]: TraceAbstraction took 822025.17ms. Allocated memory was 71.3MB in the beginning and 3.0GB in the end (delta: 2.9GB). Free memory was 17.6MB in the beginning and 580.9MB in the end (delta: -563.3MB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2025-03-14 23:10:07,963 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.22ms. Allocated memory is still 71.3MB. Free memory is still 36.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 197.83ms. Allocated memory is still 71.3MB. Free memory was 43.4MB in the beginning and 31.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.45ms. Allocated memory is still 71.3MB. Free memory was 31.3MB in the beginning and 29.5MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.20ms. Allocated memory is still 71.3MB. Free memory was 29.5MB in the beginning and 28.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 475.45ms. Allocated memory is still 71.3MB. Free memory was 28.1MB in the beginning and 18.8MB in the end (delta: 9.3MB). Peak memory consumption was 15.6MB. Max. memory is 8.0GB. * TraceAbstraction took 822025.17ms. Allocated memory was 71.3MB in the beginning and 3.0GB in the end (delta: 2.9GB). Free memory was 17.6MB in the beginning and 580.9MB in the end (delta: -563.3MB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (61states, 50/143 universal loopers) in iteration 20,while PetriNetUnfolder was constructing finite prefix that currently has 252963 conditions, 15976 events (8958/15975 cut-off events. For 220829/237152 co-relation queries the response was YES. Maximal size of possible extension queue 3130. Compared 154980 event pairs, 40 based on Foata normal form. 184/17273 useless extension candidates. Maximal degree in co-relation 241212. Up to 9726 conditions per place.). - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (61states, 50/143 universal loopers) in iteration 20,while PetriNetUnfolder was constructing finite prefix that currently has 252963 conditions, 15976 events (8958/15975 cut-off events. For 220829/237152 co-relation queries the response was YES. Maximal size of possible extension queue 3130. Compared 154980 event pairs, 40 based on Foata normal form. 184/17273 useless extension candidates. Maximal degree in co-relation 241212. Up to 9726 conditions per place.). - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (61states, 50/143 universal loopers) in iteration 20,while PetriNetUnfolder was constructing finite prefix that currently has 252963 conditions, 15976 events (8958/15975 cut-off events. For 220829/237152 co-relation queries the response was YES. Maximal size of possible extension queue 3130. Compared 154980 event pairs, 40 based on Foata normal form. 184/17273 useless extension candidates. Maximal degree in co-relation 241212. Up to 9726 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 (61states, 50/143 universal loopers) in iteration 20,while PetriNetUnfolder was constructing finite prefix that currently has 252963 conditions, 15976 events (8958/15975 cut-off events. For 220829/237152 co-relation queries the response was YES. Maximal size of possible extension queue 3130. Compared 154980 event pairs, 40 based on Foata normal form. 184/17273 useless extension candidates. Maximal degree in co-relation 241212. Up to 9726 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 172 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: 821.9s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 804.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5684 SdHoareTripleChecker+Valid, 8.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5684 mSDsluCounter, 10761 SdHoareTripleChecker+Invalid, 7.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9555 mSDsCounter, 372 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17658 IncrementalHoareTripleChecker+Invalid, 18030 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 372 mSolverCounterUnsat, 1206 mSDtfsCounter, 17658 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3363 GetRequests, 2474 SyntacticMatches, 13 SemanticMatches, 876 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36459 ImplicationChecksByTransitivity, 14.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=801608occurred in iteration=19, InterpolantAutomatonStates: 531, 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, 13.4s InterpolantComputationTime, 3630 NumberOfCodeBlocks, 3566 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 4890 ConstructedInterpolants, 72 QuantifiedInterpolants, 24054 SizeOfPredicates, 140 NumberOfNonLiveVariables, 2834 ConjunctsInSsa, 195 ConjunctsInUnsatCore, 42 InterpolantComputations, 17 PerfectInterpolantSequences, 31/64 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