/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_02-funloop_norace.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 01:37:49,662 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 01:37:49,716 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 [2023-11-30 01:37:49,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 01:37:49,748 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 01:37:49,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 01:37:49,749 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 01:37:49,750 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 01:37:49,750 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 01:37:49,751 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 01:37:49,752 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 01:37:49,752 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 01:37:49,752 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 01:37:49,754 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 01:37:49,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 01:37:49,755 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 01:37:49,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 01:37:49,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 01:37:49,755 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 01:37:49,755 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 01:37:49,755 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 01:37:49,756 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 01:37:49,756 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 01:37:49,756 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 01:37:49,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 01:37:49,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 01:37:49,757 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 01:37:49,757 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 01:37:49,757 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 01:37:49,757 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 01:37:49,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 01:37:49,758 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 01:37:49,758 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 01:37:49,758 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2023-11-30 01:37:49,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 01:37:49,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 01:37:49,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 01:37:49,944 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 01:37:49,944 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 01:37:49,945 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_02-funloop_norace.i [2023-11-30 01:37:51,002 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 01:37:51,272 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 01:37:51,272 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_02-funloop_norace.i [2023-11-30 01:37:51,297 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee2332daf/f4661185fd84471b8777059d474c354d/FLAGd39052013 [2023-11-30 01:37:51,308 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee2332daf/f4661185fd84471b8777059d474c354d [2023-11-30 01:37:51,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 01:37:51,313 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 01:37:51,316 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 01:37:51,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 01:37:51,319 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 01:37:51,320 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:37:51" (1/1) ... [2023-11-30 01:37:51,321 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a19c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:51, skipping insertion in model container [2023-11-30 01:37:51,321 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:37:51" (1/1) ... [2023-11-30 01:37:51,368 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 01:37:51,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 01:37:51,720 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 01:37:51,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 01:37:51,790 INFO L206 MainTranslator]: Completed translation [2023-11-30 01:37:51,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:51 WrapperNode [2023-11-30 01:37:51,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 01:37:51,791 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 01:37:51,791 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 01:37:51,791 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 01:37:51,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:51" (1/1) ... [2023-11-30 01:37:51,820 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:51" (1/1) ... [2023-11-30 01:37:51,846 INFO L138 Inliner]: procedures = 263, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 101 [2023-11-30 01:37:51,846 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 01:37:51,847 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 01:37:51,847 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 01:37:51,847 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 01:37:51,853 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:51" (1/1) ... [2023-11-30 01:37:51,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:51" (1/1) ... [2023-11-30 01:37:51,862 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:51" (1/1) ... [2023-11-30 01:37:51,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:51" (1/1) ... [2023-11-30 01:37:51,876 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:51" (1/1) ... [2023-11-30 01:37:51,878 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:51" (1/1) ... [2023-11-30 01:37:51,879 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:51" (1/1) ... [2023-11-30 01:37:51,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:51" (1/1) ... [2023-11-30 01:37:51,881 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 01:37:51,882 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 01:37:51,882 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 01:37:51,882 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 01:37:51,882 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:51" (1/1) ... [2023-11-30 01:37:51,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 01:37:51,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:37:51,932 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) [2023-11-30 01:37:51,956 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 [2023-11-30 01:37:51,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 01:37:51,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 01:37:51,976 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 01:37:51,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 01:37:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 01:37:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 01:37:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 01:37:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-30 01:37:51,980 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-30 01:37:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 01:37:51,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 01:37:51,982 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 01:37:52,098 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 01:37:52,100 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 01:37:52,294 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 01:37:52,308 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 01:37:52,308 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-30 01:37:52,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:37:52 BoogieIcfgContainer [2023-11-30 01:37:52,309 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 01:37:52,311 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 01:37:52,311 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 01:37:52,313 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 01:37:52,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:37:51" (1/3) ... [2023-11-30 01:37:52,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9edcd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:37:52, skipping insertion in model container [2023-11-30 01:37:52,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:37:51" (2/3) ... [2023-11-30 01:37:52,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9edcd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:37:52, skipping insertion in model container [2023-11-30 01:37:52,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:37:52" (3/3) ... [2023-11-30 01:37:52,314 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_02-funloop_norace.i [2023-11-30 01:37:52,326 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 01:37:52,326 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-30 01:37:52,326 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 01:37:52,366 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 01:37:52,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 105 transitions, 214 flow [2023-11-30 01:37:52,419 INFO L124 PetriNetUnfolderBase]: 6/104 cut-off events. [2023-11-30 01:37:52,420 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 01:37:52,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 6/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 133 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2023-11-30 01:37:52,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 105 transitions, 214 flow [2023-11-30 01:37:52,426 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 104 transitions, 211 flow [2023-11-30 01:37:52,432 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 01:37:52,437 INFO L362 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@4ffd0926, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 01:37:52,437 INFO L363 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-30 01:37:52,446 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 01:37:52,447 INFO L124 PetriNetUnfolderBase]: 4/62 cut-off events. [2023-11-30 01:37:52,447 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 01:37:52,447 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:37:52,447 INFO L232 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] [2023-11-30 01:37:52,448 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:37:52,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:37:52,456 INFO L85 PathProgramCache]: Analyzing trace with hash 568433259, now seen corresponding path program 1 times [2023-11-30 01:37:52,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:37:52,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613041146] [2023-11-30 01:37:52,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:37:52,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:37:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:37:52,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:37:52,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:37:52,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613041146] [2023-11-30 01:37:52,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613041146] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:37:52,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 01:37:52,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 01:37:52,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538746500] [2023-11-30 01:37:52,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:37:52,641 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 01:37:52,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:37:52,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 01:37:52,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 01:37:52,665 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 105 [2023-11-30 01:37:52,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 104 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2023-11-30 01:37:52,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:37:52,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 105 [2023-11-30 01:37:52,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:37:52,725 INFO L124 PetriNetUnfolderBase]: 14/225 cut-off events. [2023-11-30 01:37:52,726 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 01:37:52,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 225 events. 14/225 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 624 event pairs, 6 based on Foata normal form. 10/217 useless extension candidates. Maximal degree in co-relation 222. Up to 32 conditions per place. [2023-11-30 01:37:52,728 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 16 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2023-11-30 01:37:52,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 105 transitions, 249 flow [2023-11-30 01:37:52,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 01:37:52,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 01:37:52,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2023-11-30 01:37:52,745 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2023-11-30 01:37:52,745 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 287 transitions. [2023-11-30 01:37:52,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 287 transitions. [2023-11-30 01:37:52,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:37:52,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 287 transitions. [2023-11-30 01:37:52,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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) [2023-11-30 01:37:52,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2023-11-30 01:37:52,755 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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) [2023-11-30 01:37:52,757 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 2 predicate places. [2023-11-30 01:37:52,758 INFO L500 AbstractCegarLoop]: Abstraction has has 104 places, 105 transitions, 249 flow [2023-11-30 01:37:52,758 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2023-11-30 01:37:52,758 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:37:52,758 INFO L232 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] [2023-11-30 01:37:52,758 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 01:37:52,758 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:37:52,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:37:52,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1694617169, now seen corresponding path program 1 times [2023-11-30 01:37:52,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:37:52,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142834518] [2023-11-30 01:37:52,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:37:52,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:37:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:37:52,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:37:52,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:37:52,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142834518] [2023-11-30 01:37:52,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142834518] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:37:52,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169757072] [2023-11-30 01:37:52,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:37:52,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:37:52,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:37:52,948 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) [2023-11-30 01:37:52,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-30 01:37:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:37:53,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 01:37:53,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:37:53,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:37:53,070 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 01:37:53,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:37:53,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169757072] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 01:37:53,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 01:37:53,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-30 01:37:53,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470480506] [2023-11-30 01:37:53,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 01:37:53,100 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:37:53,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:37:53,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:37:53,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-30 01:37:53,102 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 105 [2023-11-30 01:37:53,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 105 transitions, 249 flow. Second operand has 10 states, 10 states have (on average 89.3) internal successors, (893), 10 states have internal predecessors, (893), 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) [2023-11-30 01:37:53,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:37:53,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 105 [2023-11-30 01:37:53,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:37:53,202 INFO L124 PetriNetUnfolderBase]: 14/232 cut-off events. [2023-11-30 01:37:53,202 INFO L125 PetriNetUnfolderBase]: For 19/23 co-relation queries the response was YES. [2023-11-30 01:37:53,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 232 events. 14/232 cut-off events. For 19/23 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 619 event pairs, 6 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 244. Up to 37 conditions per place. [2023-11-30 01:37:53,204 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 17 selfloop transitions, 9 changer transitions 0/112 dead transitions. [2023-11-30 01:37:53,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 112 transitions, 325 flow [2023-11-30 01:37:53,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 01:37:53,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 01:37:53,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 811 transitions. [2023-11-30 01:37:53,210 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8582010582010582 [2023-11-30 01:37:53,211 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 811 transitions. [2023-11-30 01:37:53,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 811 transitions. [2023-11-30 01:37:53,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:37:53,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 811 transitions. [2023-11-30 01:37:53,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 90.11111111111111) internal successors, (811), 9 states have internal predecessors, (811), 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) [2023-11-30 01:37:53,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 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) [2023-11-30 01:37:53,248 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 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) [2023-11-30 01:37:53,249 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 10 predicate places. [2023-11-30 01:37:53,249 INFO L500 AbstractCegarLoop]: Abstraction has has 112 places, 112 transitions, 325 flow [2023-11-30 01:37:53,250 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 89.3) internal successors, (893), 10 states have internal predecessors, (893), 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) [2023-11-30 01:37:53,250 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:37:53,250 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:37:53,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-30 01:37:53,477 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:37:53,477 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:37:53,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:37:53,478 INFO L85 PathProgramCache]: Analyzing trace with hash -881010897, now seen corresponding path program 2 times [2023-11-30 01:37:53,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:37:53,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206906876] [2023-11-30 01:37:53,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:37:53,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:37:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:37:53,648 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:37:53,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:37:53,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206906876] [2023-11-30 01:37:53,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206906876] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:37:53,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590361103] [2023-11-30 01:37:53,652 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 01:37:53,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:37:53,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:37:53,658 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) [2023-11-30 01:37:53,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-30 01:37:53,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 01:37:53,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:37:53,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-30 01:37:53,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:37:53,776 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 11 treesize of output 7 [2023-11-30 01:37:53,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 21 treesize of output 20 [2023-11-30 01:37:53,830 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 01:37:53,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 30 treesize of output 32 [2023-11-30 01:37:53,866 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 01:37:53,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-11-30 01:37:53,888 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-30 01:37:53,888 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:37:53,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590361103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:37:53,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:37:53,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2023-11-30 01:37:53,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289537947] [2023-11-30 01:37:53,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:37:53,889 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 01:37:53,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:37:53,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 01:37:53,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-30 01:37:53,890 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 105 [2023-11-30 01:37:53,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 112 transitions, 325 flow. Second operand has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 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) [2023-11-30 01:37:53,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:37:53,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 105 [2023-11-30 01:37:53,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:37:54,249 INFO L124 PetriNetUnfolderBase]: 400/1446 cut-off events. [2023-11-30 01:37:54,249 INFO L125 PetriNetUnfolderBase]: For 314/318 co-relation queries the response was YES. [2023-11-30 01:37:54,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2524 conditions, 1446 events. 400/1446 cut-off events. For 314/318 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 9233 event pairs, 180 based on Foata normal form. 0/1313 useless extension candidates. Maximal degree in co-relation 2445. Up to 609 conditions per place. [2023-11-30 01:37:54,260 INFO L140 encePairwiseOnDemand]: 94/105 looper letters, 74 selfloop transitions, 22 changer transitions 0/174 dead transitions. [2023-11-30 01:37:54,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 174 transitions, 673 flow [2023-11-30 01:37:54,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 01:37:54,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 01:37:54,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 505 transitions. [2023-11-30 01:37:54,261 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8015873015873016 [2023-11-30 01:37:54,261 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 505 transitions. [2023-11-30 01:37:54,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 505 transitions. [2023-11-30 01:37:54,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:37:54,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 505 transitions. [2023-11-30 01:37:54,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 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) [2023-11-30 01:37:54,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2023-11-30 01:37:54,265 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2023-11-30 01:37:54,266 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 15 predicate places. [2023-11-30 01:37:54,266 INFO L500 AbstractCegarLoop]: Abstraction has has 117 places, 174 transitions, 673 flow [2023-11-30 01:37:54,266 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 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) [2023-11-30 01:37:54,266 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:37:54,267 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:37:54,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-30 01:37:54,474 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-30 01:37:54,474 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:37:54,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:37:54,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1811549991, now seen corresponding path program 1 times [2023-11-30 01:37:54,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:37:54,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495898413] [2023-11-30 01:37:54,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:37:54,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:37:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:37:54,579 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:37:54,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:37:54,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495898413] [2023-11-30 01:37:54,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495898413] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:37:54,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788457435] [2023-11-30 01:37:54,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:37:54,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:37:54,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:37:54,597 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) [2023-11-30 01:37:54,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-30 01:37:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:37:54,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-30 01:37:54,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:37:54,711 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:37:54,711 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 01:37:54,774 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:37:54,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788457435] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 01:37:54,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 01:37:54,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-30 01:37:54,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845455876] [2023-11-30 01:37:54,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 01:37:54,776 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-30 01:37:54,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:37:54,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-30 01:37:54,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-30 01:37:54,778 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 105 [2023-11-30 01:37:54,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 174 transitions, 673 flow. Second operand has 18 states, 18 states have (on average 89.38888888888889) internal successors, (1609), 18 states have internal predecessors, (1609), 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) [2023-11-30 01:37:54,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:37:54,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 105 [2023-11-30 01:37:54,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:37:55,046 INFO L124 PetriNetUnfolderBase]: 400/1466 cut-off events. [2023-11-30 01:37:55,046 INFO L125 PetriNetUnfolderBase]: For 650/656 co-relation queries the response was YES. [2023-11-30 01:37:55,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2746 conditions, 1466 events. 400/1466 cut-off events. For 650/656 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 9281 event pairs, 180 based on Foata normal form. 0/1333 useless extension candidates. Maximal degree in co-relation 2569. Up to 609 conditions per place. [2023-11-30 01:37:55,052 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 33 selfloop transitions, 21 changer transitions 0/194 dead transitions. [2023-11-30 01:37:55,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 194 transitions, 893 flow [2023-11-30 01:37:55,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-30 01:37:55,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-30 01:37:55,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1877 transitions. [2023-11-30 01:37:55,055 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8512471655328798 [2023-11-30 01:37:55,055 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1877 transitions. [2023-11-30 01:37:55,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1877 transitions. [2023-11-30 01:37:55,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:37:55,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1877 transitions. [2023-11-30 01:37:55,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 89.38095238095238) internal successors, (1877), 21 states have internal predecessors, (1877), 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) [2023-11-30 01:37:55,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 105.0) internal successors, (2310), 22 states have internal predecessors, (2310), 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) [2023-11-30 01:37:55,063 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 105.0) internal successors, (2310), 22 states have internal predecessors, (2310), 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) [2023-11-30 01:37:55,064 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 35 predicate places. [2023-11-30 01:37:55,064 INFO L500 AbstractCegarLoop]: Abstraction has has 137 places, 194 transitions, 893 flow [2023-11-30 01:37:55,064 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 89.38888888888889) internal successors, (1609), 18 states have internal predecessors, (1609), 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) [2023-11-30 01:37:55,065 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:37:55,065 INFO L232 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:37:55,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-30 01:37:55,269 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:37:55,272 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:37:55,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:37:55,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1488763431, now seen corresponding path program 2 times [2023-11-30 01:37:55,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:37:55,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853941711] [2023-11-30 01:37:55,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:37:55,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:37:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:37:55,476 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:37:55,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:37:55,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853941711] [2023-11-30 01:37:55,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853941711] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:37:55,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406376346] [2023-11-30 01:37:55,479 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 01:37:55,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:37:55,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:37:55,499 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) [2023-11-30 01:37:55,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-30 01:37:55,585 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 01:37:55,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:37:55,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-30 01:37:55,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:37:55,679 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 11 treesize of output 7 [2023-11-30 01:37:55,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-30 01:37:55,725 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 01:37:55,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-30 01:37:55,757 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 01:37:55,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-30 01:37:55,781 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-30 01:37:55,781 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:37:55,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406376346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:37:55,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:37:55,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [17] total 25 [2023-11-30 01:37:55,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593185028] [2023-11-30 01:37:55,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:37:55,782 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:37:55,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:37:55,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:37:55,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2023-11-30 01:37:55,783 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 105 [2023-11-30 01:37:55,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 194 transitions, 893 flow. Second operand has 10 states, 10 states have (on average 56.7) internal successors, (567), 10 states have internal predecessors, (567), 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) [2023-11-30 01:37:55,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:37:55,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 105 [2023-11-30 01:37:55,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:37:56,548 INFO L124 PetriNetUnfolderBase]: 1252/3319 cut-off events. [2023-11-30 01:37:56,549 INFO L125 PetriNetUnfolderBase]: For 2283/2351 co-relation queries the response was YES. [2023-11-30 01:37:56,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8510 conditions, 3319 events. 1252/3319 cut-off events. For 2283/2351 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 22137 event pairs, 431 based on Foata normal form. 0/3031 useless extension candidates. Maximal degree in co-relation 8321. Up to 1457 conditions per place. [2023-11-30 01:37:56,563 INFO L140 encePairwiseOnDemand]: 86/105 looper letters, 283 selfloop transitions, 53 changer transitions 0/416 dead transitions. [2023-11-30 01:37:56,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 416 transitions, 2561 flow [2023-11-30 01:37:56,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 01:37:56,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 01:37:56,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 730 transitions. [2023-11-30 01:37:56,565 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6952380952380952 [2023-11-30 01:37:56,565 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 730 transitions. [2023-11-30 01:37:56,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 730 transitions. [2023-11-30 01:37:56,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:37:56,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 730 transitions. [2023-11-30 01:37:56,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 73.0) internal successors, (730), 10 states have internal predecessors, (730), 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) [2023-11-30 01:37:56,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:37:56,568 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:37:56,569 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 44 predicate places. [2023-11-30 01:37:56,569 INFO L500 AbstractCegarLoop]: Abstraction has has 146 places, 416 transitions, 2561 flow [2023-11-30 01:37:56,569 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 56.7) internal successors, (567), 10 states have internal predecessors, (567), 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) [2023-11-30 01:37:56,569 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:37:56,569 INFO L232 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:37:56,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-30 01:37:56,774 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:37:56,774 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:37:56,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:37:56,774 INFO L85 PathProgramCache]: Analyzing trace with hash 504128436, now seen corresponding path program 1 times [2023-11-30 01:37:56,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:37:56,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898054359] [2023-11-30 01:37:56,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:37:56,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:37:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:37:56,987 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:37:56,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:37:56,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898054359] [2023-11-30 01:37:56,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898054359] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:37:56,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679519390] [2023-11-30 01:37:56,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:37:56,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:37:56,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:37:56,989 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) [2023-11-30 01:37:57,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-30 01:37:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:37:57,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-30 01:37:57,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:37:57,181 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:37:57,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 01:37:57,404 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 01:37:57,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679519390] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 01:37:57,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 01:37:57,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-11-30 01:37:57,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098510481] [2023-11-30 01:37:57,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 01:37:57,405 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-30 01:37:57,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:37:57,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-30 01:37:57,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-30 01:37:57,407 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 105 [2023-11-30 01:37:57,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 416 transitions, 2561 flow. Second operand has 23 states, 23 states have (on average 89.52173913043478) internal successors, (2059), 23 states have internal predecessors, (2059), 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) [2023-11-30 01:37:57,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:37:57,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 105 [2023-11-30 01:37:57,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:37:57,968 INFO L124 PetriNetUnfolderBase]: 1257/3433 cut-off events. [2023-11-30 01:37:57,968 INFO L125 PetriNetUnfolderBase]: For 3331/3404 co-relation queries the response was YES. [2023-11-30 01:37:57,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8982 conditions, 3433 events. 1257/3433 cut-off events. For 3331/3404 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 23013 event pairs, 440 based on Foata normal form. 0/3136 useless extension candidates. Maximal degree in co-relation 8676. Up to 1467 conditions per place. [2023-11-30 01:37:57,986 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 63 selfloop transitions, 30 changer transitions 0/431 dead transitions. [2023-11-30 01:37:57,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 431 transitions, 2867 flow [2023-11-30 01:37:57,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-30 01:37:57,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-30 01:37:57,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2674 transitions. [2023-11-30 01:37:57,990 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8488888888888889 [2023-11-30 01:37:57,990 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2674 transitions. [2023-11-30 01:37:57,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2674 transitions. [2023-11-30 01:37:57,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:37:57,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2674 transitions. [2023-11-30 01:37:57,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 89.13333333333334) internal successors, (2674), 30 states have internal predecessors, (2674), 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) [2023-11-30 01:37:57,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 105.0) internal successors, (3255), 31 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) [2023-11-30 01:37:57,999 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 105.0) internal successors, (3255), 31 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) [2023-11-30 01:37:58,001 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 73 predicate places. [2023-11-30 01:37:58,001 INFO L500 AbstractCegarLoop]: Abstraction has has 175 places, 431 transitions, 2867 flow [2023-11-30 01:37:58,002 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 89.52173913043478) internal successors, (2059), 23 states have internal predecessors, (2059), 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) [2023-11-30 01:37:58,002 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:37:58,002 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:37:58,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-30 01:37:58,209 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:37:58,209 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:37:58,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:37:58,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1195660400, now seen corresponding path program 2 times [2023-11-30 01:37:58,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:37:58,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085222421] [2023-11-30 01:37:58,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:37:58,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:37:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:37:58,538 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:37:58,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:37:58,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085222421] [2023-11-30 01:37:58,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085222421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:37:58,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 01:37:58,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 01:37:58,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082451648] [2023-11-30 01:37:58,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:37:58,539 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 01:37:58,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:37:58,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 01:37:58,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 01:37:58,540 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 105 [2023-11-30 01:37:58,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 431 transitions, 2867 flow. Second operand has 6 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 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) [2023-11-30 01:37:58,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:37:58,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 105 [2023-11-30 01:37:58,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:37:59,025 INFO L124 PetriNetUnfolderBase]: 1548/4141 cut-off events. [2023-11-30 01:37:59,025 INFO L125 PetriNetUnfolderBase]: For 5349/5580 co-relation queries the response was YES. [2023-11-30 01:37:59,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13214 conditions, 4141 events. 1548/4141 cut-off events. For 5349/5580 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 28621 event pairs, 383 based on Foata normal form. 1/3811 useless extension candidates. Maximal degree in co-relation 12906. Up to 2102 conditions per place. [2023-11-30 01:37:59,048 INFO L140 encePairwiseOnDemand]: 90/105 looper letters, 336 selfloop transitions, 107 changer transitions 0/572 dead transitions. [2023-11-30 01:37:59,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 572 transitions, 4723 flow [2023-11-30 01:37:59,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 01:37:59,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 01:37:59,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 494 transitions. [2023-11-30 01:37:59,049 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7841269841269841 [2023-11-30 01:37:59,049 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 494 transitions. [2023-11-30 01:37:59,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 494 transitions. [2023-11-30 01:37:59,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:37:59,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 494 transitions. [2023-11-30 01:37:59,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.33333333333333) internal successors, (494), 6 states have internal predecessors, (494), 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) [2023-11-30 01:37:59,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2023-11-30 01:37:59,051 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2023-11-30 01:37:59,052 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 78 predicate places. [2023-11-30 01:37:59,052 INFO L500 AbstractCegarLoop]: Abstraction has has 180 places, 572 transitions, 4723 flow [2023-11-30 01:37:59,052 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 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) [2023-11-30 01:37:59,052 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:37:59,052 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:37:59,052 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 01:37:59,052 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:37:59,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:37:59,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1173931621, now seen corresponding path program 1 times [2023-11-30 01:37:59,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:37:59,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406637099] [2023-11-30 01:37:59,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:37:59,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:37:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:37:59,389 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:37:59,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:37:59,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406637099] [2023-11-30 01:37:59,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406637099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:37:59,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 01:37:59,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 01:37:59,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124797163] [2023-11-30 01:37:59,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:37:59,392 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 01:37:59,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:37:59,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 01:37:59,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 01:37:59,393 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 105 [2023-11-30 01:37:59,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 572 transitions, 4723 flow. Second operand has 6 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 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) [2023-11-30 01:37:59,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:37:59,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 105 [2023-11-30 01:37:59,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:38:00,252 INFO L124 PetriNetUnfolderBase]: 1889/5002 cut-off events. [2023-11-30 01:38:00,252 INFO L125 PetriNetUnfolderBase]: For 7532/7654 co-relation queries the response was YES. [2023-11-30 01:38:00,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18769 conditions, 5002 events. 1889/5002 cut-off events. For 7532/7654 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 35475 event pairs, 410 based on Foata normal form. 0/4632 useless extension candidates. Maximal degree in co-relation 18459. Up to 2610 conditions per place. [2023-11-30 01:38:00,276 INFO L140 encePairwiseOnDemand]: 90/105 looper letters, 460 selfloop transitions, 148 changer transitions 0/733 dead transitions. [2023-11-30 01:38:00,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 733 transitions, 7349 flow [2023-11-30 01:38:00,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 01:38:00,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 01:38:00,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 494 transitions. [2023-11-30 01:38:00,278 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7841269841269841 [2023-11-30 01:38:00,278 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 494 transitions. [2023-11-30 01:38:00,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 494 transitions. [2023-11-30 01:38:00,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:38:00,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 494 transitions. [2023-11-30 01:38:00,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.33333333333333) internal successors, (494), 6 states have internal predecessors, (494), 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) [2023-11-30 01:38:00,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2023-11-30 01:38:00,280 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 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) [2023-11-30 01:38:00,282 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 83 predicate places. [2023-11-30 01:38:00,282 INFO L500 AbstractCegarLoop]: Abstraction has has 185 places, 733 transitions, 7349 flow [2023-11-30 01:38:00,282 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 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) [2023-11-30 01:38:00,282 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:38:00,282 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:38:00,282 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 01:38:00,283 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:38:00,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:38:00,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1956100134, now seen corresponding path program 1 times [2023-11-30 01:38:00,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:38:00,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893308830] [2023-11-30 01:38:00,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:38:00,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:38:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:38:01,000 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:38:01,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:38:01,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893308830] [2023-11-30 01:38:01,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893308830] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:38:01,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618464017] [2023-11-30 01:38:01,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:38:01,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:38:01,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:38:01,002 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) [2023-11-30 01:38:01,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-30 01:38:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:38:01,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:38:01,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:38:01,246 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 13 treesize of output 9 [2023-11-30 01:38:01,274 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:38:01,274 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:38:01,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618464017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:38:01,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:38:01,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2023-11-30 01:38:01,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945520376] [2023-11-30 01:38:01,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:38:01,275 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:38:01,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:38:01,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:38:01,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2023-11-30 01:38:01,276 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:38:01,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 733 transitions, 7349 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:38:01,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:38:01,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:38:01,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:38:03,406 INFO L124 PetriNetUnfolderBase]: 4601/10861 cut-off events. [2023-11-30 01:38:03,406 INFO L125 PetriNetUnfolderBase]: For 22060/22189 co-relation queries the response was YES. [2023-11-30 01:38:03,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50307 conditions, 10861 events. 4601/10861 cut-off events. For 22060/22189 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 87149 event pairs, 732 based on Foata normal form. 29/10220 useless extension candidates. Maximal degree in co-relation 49981. Up to 5954 conditions per place. [2023-11-30 01:38:03,479 INFO L140 encePairwiseOnDemand]: 88/105 looper letters, 1696 selfloop transitions, 53 changer transitions 0/1829 dead transitions. [2023-11-30 01:38:03,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 1829 transitions, 22259 flow [2023-11-30 01:38:03,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 01:38:03,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 01:38:03,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 714 transitions. [2023-11-30 01:38:03,481 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.68 [2023-11-30 01:38:03,481 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 714 transitions. [2023-11-30 01:38:03,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 714 transitions. [2023-11-30 01:38:03,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:38:03,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 714 transitions. [2023-11-30 01:38:03,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 71.4) internal successors, (714), 10 states have internal predecessors, (714), 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) [2023-11-30 01:38:03,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:38:03,484 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:38:03,485 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 92 predicate places. [2023-11-30 01:38:03,485 INFO L500 AbstractCegarLoop]: Abstraction has has 194 places, 1829 transitions, 22259 flow [2023-11-30 01:38:03,485 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:38:03,485 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:38:03,485 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:38:03,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-30 01:38:03,690 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:38:03,691 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:38:03,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:38:03,691 INFO L85 PathProgramCache]: Analyzing trace with hash -548030454, now seen corresponding path program 2 times [2023-11-30 01:38:03,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:38:03,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693671790] [2023-11-30 01:38:03,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:38:03,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:38:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:38:04,211 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:38:04,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:38:04,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693671790] [2023-11-30 01:38:04,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693671790] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:38:04,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949740822] [2023-11-30 01:38:04,211 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 01:38:04,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:38:04,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:38:04,236 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) [2023-11-30 01:38:04,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-30 01:38:04,349 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 01:38:04,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:38:04,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:38:04,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:38:04,460 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 13 treesize of output 9 [2023-11-30 01:38:04,538 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:38:04,538 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:38:04,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949740822] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:38:04,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:38:04,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2023-11-30 01:38:04,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41855302] [2023-11-30 01:38:04,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:38:04,539 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:38:04,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:38:04,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:38:04,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-11-30 01:38:04,540 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:38:04,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 1829 transitions, 22259 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:38:04,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:38:04,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:38:04,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:38:09,343 INFO L124 PetriNetUnfolderBase]: 7431/17520 cut-off events. [2023-11-30 01:38:09,343 INFO L125 PetriNetUnfolderBase]: For 45191/45471 co-relation queries the response was YES. [2023-11-30 01:38:09,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94724 conditions, 17520 events. 7431/17520 cut-off events. For 45191/45471 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 145856 event pairs, 880 based on Foata normal form. 42/16520 useless extension candidates. Maximal degree in co-relation 94382. Up to 9531 conditions per place. [2023-11-30 01:38:09,569 INFO L140 encePairwiseOnDemand]: 90/105 looper letters, 2836 selfloop transitions, 167 changer transitions 6/3089 dead transitions. [2023-11-30 01:38:09,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 3089 transitions, 43543 flow [2023-11-30 01:38:09,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 01:38:09,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 01:38:09,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 672 transitions. [2023-11-30 01:38:09,572 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.64 [2023-11-30 01:38:09,572 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 672 transitions. [2023-11-30 01:38:09,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 672 transitions. [2023-11-30 01:38:09,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:38:09,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 672 transitions. [2023-11-30 01:38:09,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 67.2) internal successors, (672), 10 states have internal predecessors, (672), 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) [2023-11-30 01:38:09,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:38:09,574 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:38:09,575 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 101 predicate places. [2023-11-30 01:38:09,575 INFO L500 AbstractCegarLoop]: Abstraction has has 203 places, 3089 transitions, 43543 flow [2023-11-30 01:38:09,575 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:38:09,575 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:38:09,575 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:38:09,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-30 01:38:09,801 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:38:09,801 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:38:09,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:38:09,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1596970905, now seen corresponding path program 1 times [2023-11-30 01:38:09,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:38:09,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903436650] [2023-11-30 01:38:09,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:38:09,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:38:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:38:10,391 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:38:10,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:38:10,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903436650] [2023-11-30 01:38:10,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903436650] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:38:10,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648916888] [2023-11-30 01:38:10,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:38:10,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:38:10,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:38:10,412 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) [2023-11-30 01:38:10,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-30 01:38:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:38:10,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:38:10,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:38:10,695 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 13 treesize of output 9 [2023-11-30 01:38:10,728 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:38:10,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:38:10,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648916888] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:38:10,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:38:10,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2023-11-30 01:38:10,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789279035] [2023-11-30 01:38:10,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:38:10,730 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:38:10,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:38:10,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:38:10,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2023-11-30 01:38:10,731 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:38:10,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 3089 transitions, 43543 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:38:10,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:38:10,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:38:10,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:38:19,039 INFO L124 PetriNetUnfolderBase]: 9109/21514 cut-off events. [2023-11-30 01:38:19,039 INFO L125 PetriNetUnfolderBase]: For 69060/69622 co-relation queries the response was YES. [2023-11-30 01:38:19,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133509 conditions, 21514 events. 9109/21514 cut-off events. For 69060/69622 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 188362 event pairs, 917 based on Foata normal form. 77/20367 useless extension candidates. Maximal degree in co-relation 133151. Up to 11785 conditions per place. [2023-11-30 01:38:19,157 INFO L140 encePairwiseOnDemand]: 89/105 looper letters, 3896 selfloop transitions, 73 changer transitions 6/4055 dead transitions. [2023-11-30 01:38:19,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 4055 transitions, 65353 flow [2023-11-30 01:38:19,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 01:38:19,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 01:38:19,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 732 transitions. [2023-11-30 01:38:19,159 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6971428571428572 [2023-11-30 01:38:19,159 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 732 transitions. [2023-11-30 01:38:19,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 732 transitions. [2023-11-30 01:38:19,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:38:19,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 732 transitions. [2023-11-30 01:38:19,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 73.2) internal successors, (732), 10 states have internal predecessors, (732), 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) [2023-11-30 01:38:19,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:38:19,162 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:38:19,162 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 110 predicate places. [2023-11-30 01:38:19,162 INFO L500 AbstractCegarLoop]: Abstraction has has 212 places, 4055 transitions, 65353 flow [2023-11-30 01:38:19,162 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:38:19,162 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:38:19,162 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:38:19,167 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-30 01:38:19,367 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-30 01:38:19,367 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:38:19,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:38:19,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1604893295, now seen corresponding path program 2 times [2023-11-30 01:38:19,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:38:19,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140453184] [2023-11-30 01:38:19,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:38:19,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:38:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:38:19,769 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:38:19,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:38:19,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140453184] [2023-11-30 01:38:19,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140453184] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:38:19,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871511905] [2023-11-30 01:38:19,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 01:38:19,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:38:19,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:38:19,770 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) [2023-11-30 01:38:19,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-30 01:38:19,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 01:38:19,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:38:19,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:38:19,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:38:20,015 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 13 treesize of output 9 [2023-11-30 01:38:20,065 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:38:20,065 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:38:20,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871511905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:38:20,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:38:20,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2023-11-30 01:38:20,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693950679] [2023-11-30 01:38:20,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:38:20,066 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:38:20,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:38:20,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:38:20,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-11-30 01:38:20,067 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:38:20,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 4055 transitions, 65353 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:38:20,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:38:20,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:38:20,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:38:32,301 INFO L124 PetriNetUnfolderBase]: 9817/23167 cut-off events. [2023-11-30 01:38:32,302 INFO L125 PetriNetUnfolderBase]: For 92876/93823 co-relation queries the response was YES. [2023-11-30 01:38:32,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162526 conditions, 23167 events. 9817/23167 cut-off events. For 92876/93823 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 206893 event pairs, 1018 based on Foata normal form. 95/21939 useless extension candidates. Maximal degree in co-relation 162152. Up to 12815 conditions per place. [2023-11-30 01:38:32,606 INFO L140 encePairwiseOnDemand]: 89/105 looper letters, 4335 selfloop transitions, 75 changer transitions 6/4496 dead transitions. [2023-11-30 01:38:32,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 4496 transitions, 81469 flow [2023-11-30 01:38:32,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 01:38:32,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 01:38:32,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 749 transitions. [2023-11-30 01:38:32,625 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7133333333333334 [2023-11-30 01:38:32,625 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 749 transitions. [2023-11-30 01:38:32,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 749 transitions. [2023-11-30 01:38:32,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:38:32,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 749 transitions. [2023-11-30 01:38:32,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 74.9) internal successors, (749), 10 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) [2023-11-30 01:38:32,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:38:32,631 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:38:32,631 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 119 predicate places. [2023-11-30 01:38:32,631 INFO L500 AbstractCegarLoop]: Abstraction has has 221 places, 4496 transitions, 81469 flow [2023-11-30 01:38:32,631 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:38:32,631 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:38:32,632 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:38:32,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-30 01:38:32,836 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:38:32,836 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:38:32,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:38:32,837 INFO L85 PathProgramCache]: Analyzing trace with hash 947548813, now seen corresponding path program 3 times [2023-11-30 01:38:32,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:38:32,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840056267] [2023-11-30 01:38:32,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:38:32,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:38:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:38:33,342 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:38:33,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:38:33,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840056267] [2023-11-30 01:38:33,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840056267] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:38:33,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242448864] [2023-11-30 01:38:33,343 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-30 01:38:33,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:38:33,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:38:33,344 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) [2023-11-30 01:38:33,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-30 01:38:33,435 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-30 01:38:33,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:38:33,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:38:33,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:38:33,599 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 13 treesize of output 9 [2023-11-30 01:38:33,627 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:38:33,627 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:38:33,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242448864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:38:33,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:38:33,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2023-11-30 01:38:33,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98565332] [2023-11-30 01:38:33,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:38:33,628 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:38:33,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:38:33,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:38:33,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2023-11-30 01:38:33,629 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:38:33,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 4496 transitions, 81469 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:38:33,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:38:33,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:38:33,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:38:48,560 INFO L124 PetriNetUnfolderBase]: 10442/24720 cut-off events. [2023-11-30 01:38:48,560 INFO L125 PetriNetUnfolderBase]: For 121433/122619 co-relation queries the response was YES. [2023-11-30 01:38:48,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192816 conditions, 24720 events. 10442/24720 cut-off events. For 121433/122619 co-relation queries the response was YES. Maximal size of possible extension queue 529. Compared 223466 event pairs, 1034 based on Foata normal form. 138/23444 useless extension candidates. Maximal degree in co-relation 192426. Up to 13716 conditions per place. [2023-11-30 01:38:48,725 INFO L140 encePairwiseOnDemand]: 88/105 looper letters, 4590 selfloop transitions, 100 changer transitions 8/4778 dead transitions. [2023-11-30 01:38:48,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 4778 transitions, 96069 flow [2023-11-30 01:38:48,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 01:38:48,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 01:38:48,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 947 transitions. [2023-11-30 01:38:48,728 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6937728937728938 [2023-11-30 01:38:48,728 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 947 transitions. [2023-11-30 01:38:48,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 947 transitions. [2023-11-30 01:38:48,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:38:48,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 947 transitions. [2023-11-30 01:38:48,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.84615384615384) internal successors, (947), 13 states have internal predecessors, (947), 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) [2023-11-30 01:38:48,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2023-11-30 01:38:48,735 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2023-11-30 01:38:48,735 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 131 predicate places. [2023-11-30 01:38:48,735 INFO L500 AbstractCegarLoop]: Abstraction has has 233 places, 4778 transitions, 96069 flow [2023-11-30 01:38:48,736 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:38:48,736 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:38:48,739 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:38:48,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-30 01:38:48,944 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-30 01:38:48,944 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:38:48,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:38:48,945 INFO L85 PathProgramCache]: Analyzing trace with hash -697406079, now seen corresponding path program 4 times [2023-11-30 01:38:48,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:38:48,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037825865] [2023-11-30 01:38:48,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:38:48,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:38:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:38:49,459 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:38:49,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:38:49,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037825865] [2023-11-30 01:38:49,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037825865] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:38:49,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556240541] [2023-11-30 01:38:49,459 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-30 01:38:49,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:38:49,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:38:49,481 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) [2023-11-30 01:38:49,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-30 01:38:49,635 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-30 01:38:49,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:38:49,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-30 01:38:49,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:38:49,712 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 13 treesize of output 9 [2023-11-30 01:38:49,723 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:38:49,723 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:38:49,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556240541] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:38:49,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:38:49,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2023-11-30 01:38:49,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276776809] [2023-11-30 01:38:49,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:38:49,724 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 01:38:49,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:38:49,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 01:38:49,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2023-11-30 01:38:49,725 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:38:49,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 4778 transitions, 96069 flow. Second operand has 9 states, 9 states have (on average 45.666666666666664) internal successors, (411), 9 states have internal predecessors, (411), 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) [2023-11-30 01:38:49,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:38:49,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:38:49,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:39:05,935 INFO L124 PetriNetUnfolderBase]: 10470/24922 cut-off events. [2023-11-30 01:39:05,935 INFO L125 PetriNetUnfolderBase]: For 148657/150071 co-relation queries the response was YES. [2023-11-30 01:39:05,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213498 conditions, 24922 events. 10470/24922 cut-off events. For 148657/150071 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 222984 event pairs, 826 based on Foata normal form. 157/23657 useless extension candidates. Maximal degree in co-relation 213092. Up to 13746 conditions per place. [2023-11-30 01:39:06,109 INFO L140 encePairwiseOnDemand]: 89/105 looper letters, 4313 selfloop transitions, 321 changer transitions 10/4724 dead transitions. [2023-11-30 01:39:06,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 4724 transitions, 104111 flow [2023-11-30 01:39:06,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-30 01:39:06,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-30 01:39:06,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1150 transitions. [2023-11-30 01:39:06,111 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7301587301587301 [2023-11-30 01:39:06,111 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1150 transitions. [2023-11-30 01:39:06,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1150 transitions. [2023-11-30 01:39:06,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:39:06,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1150 transitions. [2023-11-30 01:39:06,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 76.66666666666667) internal successors, (1150), 15 states have internal predecessors, (1150), 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) [2023-11-30 01:39:06,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 105.0) internal successors, (1680), 16 states have internal predecessors, (1680), 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) [2023-11-30 01:39:06,121 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 105.0) internal successors, (1680), 16 states have internal predecessors, (1680), 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) [2023-11-30 01:39:06,121 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 145 predicate places. [2023-11-30 01:39:06,121 INFO L500 AbstractCegarLoop]: Abstraction has has 247 places, 4724 transitions, 104111 flow [2023-11-30 01:39:06,122 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 45.666666666666664) internal successors, (411), 9 states have internal predecessors, (411), 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) [2023-11-30 01:39:06,122 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:39:06,122 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:39:06,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-30 01:39:06,326 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-30 01:39:06,326 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:39:06,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:39:06,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1881452985, now seen corresponding path program 5 times [2023-11-30 01:39:06,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:39:06,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744707690] [2023-11-30 01:39:06,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:39:06,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:39:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:39:07,081 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:39:07,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:39:07,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744707690] [2023-11-30 01:39:07,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744707690] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:39:07,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159778783] [2023-11-30 01:39:07,082 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-30 01:39:07,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:39:07,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:39:07,092 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:39:07,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-30 01:39:07,270 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2023-11-30 01:39:07,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:39:07,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:39:07,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:39:07,405 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 13 treesize of output 9 [2023-11-30 01:39:07,479 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:39:07,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:39:07,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159778783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:39:07,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:39:07,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2023-11-30 01:39:07,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943714456] [2023-11-30 01:39:07,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:39:07,480 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:39:07,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:39:07,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:39:07,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-11-30 01:39:07,480 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:39:07,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 4724 transitions, 104111 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:39:07,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:39:07,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:39:07,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:39:23,532 INFO L124 PetriNetUnfolderBase]: 10496/24999 cut-off events. [2023-11-30 01:39:23,534 INFO L125 PetriNetUnfolderBase]: For 177760/179360 co-relation queries the response was YES. [2023-11-30 01:39:23,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233872 conditions, 24999 events. 10496/24999 cut-off events. For 177760/179360 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 223777 event pairs, 826 based on Foata normal form. 110/23688 useless extension candidates. Maximal degree in co-relation 233450. Up to 13805 conditions per place. [2023-11-30 01:39:23,724 INFO L140 encePairwiseOnDemand]: 90/105 looper letters, 4546 selfloop transitions, 116 changer transitions 10/4752 dead transitions. [2023-11-30 01:39:23,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 4752 transitions, 114063 flow [2023-11-30 01:39:23,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 01:39:23,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 01:39:23,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 715 transitions. [2023-11-30 01:39:23,726 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2023-11-30 01:39:23,726 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 715 transitions. [2023-11-30 01:39:23,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 715 transitions. [2023-11-30 01:39:23,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:39:23,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 715 transitions. [2023-11-30 01:39:23,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 71.5) internal successors, (715), 10 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 01:39:23,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:39:23,733 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:39:23,734 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 154 predicate places. [2023-11-30 01:39:23,734 INFO L500 AbstractCegarLoop]: Abstraction has has 256 places, 4752 transitions, 114063 flow [2023-11-30 01:39:23,734 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:39:23,734 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:39:23,734 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:39:23,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-30 01:39:23,940 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-30 01:39:23,940 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:39:23,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:39:23,941 INFO L85 PathProgramCache]: Analyzing trace with hash 442135033, now seen corresponding path program 6 times [2023-11-30 01:39:23,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:39:23,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790032719] [2023-11-30 01:39:23,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:39:23,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:39:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:39:24,260 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:39:24,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:39:24,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790032719] [2023-11-30 01:39:24,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790032719] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:39:24,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074467441] [2023-11-30 01:39:24,261 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-30 01:39:24,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:39:24,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:39:24,277 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:39:24,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-30 01:39:24,447 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2023-11-30 01:39:24,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:39:24,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:39:24,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:39:24,649 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 13 treesize of output 9 [2023-11-30 01:39:24,730 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:39:24,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:39:24,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074467441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:39:24,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:39:24,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2023-11-30 01:39:24,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366550004] [2023-11-30 01:39:24,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:39:24,731 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:39:24,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:39:24,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:39:24,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2023-11-30 01:39:24,732 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:39:24,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 4752 transitions, 114063 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:39:24,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:39:24,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:39:24,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:39:41,822 INFO L124 PetriNetUnfolderBase]: 10496/25016 cut-off events. [2023-11-30 01:39:41,822 INFO L125 PetriNetUnfolderBase]: For 209121/210925 co-relation queries the response was YES. [2023-11-30 01:39:41,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253743 conditions, 25016 events. 10496/25016 cut-off events. For 209121/210925 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 224142 event pairs, 846 based on Foata normal form. 121/23717 useless extension candidates. Maximal degree in co-relation 253305. Up to 13815 conditions per place. [2023-11-30 01:39:42,086 INFO L140 encePairwiseOnDemand]: 89/105 looper letters, 4596 selfloop transitions, 79 changer transitions 10/4765 dead transitions. [2023-11-30 01:39:42,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 4765 transitions, 123745 flow [2023-11-30 01:39:42,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 01:39:42,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 01:39:42,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 733 transitions. [2023-11-30 01:39:42,087 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6980952380952381 [2023-11-30 01:39:42,087 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 733 transitions. [2023-11-30 01:39:42,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 733 transitions. [2023-11-30 01:39:42,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:39:42,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 733 transitions. [2023-11-30 01:39:42,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 73.3) internal successors, (733), 10 states have internal predecessors, (733), 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) [2023-11-30 01:39:42,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:39:42,089 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:39:42,089 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 163 predicate places. [2023-11-30 01:39:42,089 INFO L500 AbstractCegarLoop]: Abstraction has has 265 places, 4765 transitions, 123745 flow [2023-11-30 01:39:42,090 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:39:42,090 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:39:42,090 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:39:42,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-30 01:39:42,296 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-30 01:39:42,296 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:39:42,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:39:42,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1021148439, now seen corresponding path program 7 times [2023-11-30 01:39:42,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:39:42,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684879559] [2023-11-30 01:39:42,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:39:42,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:39:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:39:42,606 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:39:42,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:39:42,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684879559] [2023-11-30 01:39:42,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684879559] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:39:42,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239654191] [2023-11-30 01:39:42,606 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-30 01:39:42,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:39:42,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:39:42,608 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:39:42,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-30 01:39:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:39:42,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:39:42,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:39:42,904 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 13 treesize of output 9 [2023-11-30 01:39:42,922 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:39:42,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:39:42,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239654191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:39:42,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:39:42,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2023-11-30 01:39:42,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877368768] [2023-11-30 01:39:42,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:39:42,923 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:39:42,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:39:42,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:39:42,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2023-11-30 01:39:42,924 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:39:42,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 4765 transitions, 123745 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:39:42,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:39:42,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:39:42,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:40:00,524 INFO L124 PetriNetUnfolderBase]: 10401/24850 cut-off events. [2023-11-30 01:40:00,524 INFO L125 PetriNetUnfolderBase]: For 241101/243120 co-relation queries the response was YES. [2023-11-30 01:40:00,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271482 conditions, 24850 events. 10401/24850 cut-off events. For 241101/243120 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 221890 event pairs, 832 based on Foata normal form. 132/23557 useless extension candidates. Maximal degree in co-relation 271028. Up to 13713 conditions per place. [2023-11-30 01:40:00,741 INFO L140 encePairwiseOnDemand]: 88/105 looper letters, 4381 selfloop transitions, 127 changer transitions 12/4600 dead transitions. [2023-11-30 01:40:00,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 4600 transitions, 128387 flow [2023-11-30 01:40:00,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 01:40:00,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 01:40:00,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 904 transitions. [2023-11-30 01:40:00,750 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6622710622710622 [2023-11-30 01:40:00,750 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 904 transitions. [2023-11-30 01:40:00,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 904 transitions. [2023-11-30 01:40:00,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:40:00,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 904 transitions. [2023-11-30 01:40:00,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 69.53846153846153) internal successors, (904), 13 states have internal predecessors, (904), 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) [2023-11-30 01:40:00,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2023-11-30 01:40:00,753 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2023-11-30 01:40:00,753 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 175 predicate places. [2023-11-30 01:40:00,753 INFO L500 AbstractCegarLoop]: Abstraction has has 277 places, 4600 transitions, 128387 flow [2023-11-30 01:40:00,753 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:40:00,753 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:40:00,753 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:40:00,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-30 01:40:00,958 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:40:00,958 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:40:00,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:40:00,959 INFO L85 PathProgramCache]: Analyzing trace with hash 744737319, now seen corresponding path program 8 times [2023-11-30 01:40:00,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:40:00,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951453706] [2023-11-30 01:40:00,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:40:00,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:40:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:40:01,545 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:40:01,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:40:01,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951453706] [2023-11-30 01:40:01,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951453706] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:40:01,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701918101] [2023-11-30 01:40:01,545 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 01:40:01,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:40:01,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:40:01,547 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:40:01,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-30 01:40:01,746 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 01:40:01,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:40:01,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:40:01,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:40:01,926 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 13 treesize of output 9 [2023-11-30 01:40:01,975 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:40:01,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:40:01,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701918101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:40:01,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:40:01,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2023-11-30 01:40:01,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065089425] [2023-11-30 01:40:01,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:40:01,978 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:40:01,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:40:01,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:40:01,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-11-30 01:40:01,984 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:40:01,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 4600 transitions, 128387 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:40:01,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:40:01,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:40:01,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:40:21,315 INFO L124 PetriNetUnfolderBase]: 11112/26530 cut-off events. [2023-11-30 01:40:21,316 INFO L125 PetriNetUnfolderBase]: For 300086/302869 co-relation queries the response was YES. [2023-11-30 01:40:21,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310803 conditions, 26530 events. 11112/26530 cut-off events. For 300086/302869 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 240604 event pairs, 854 based on Foata normal form. 106/25119 useless extension candidates. Maximal degree in co-relation 310333. Up to 14713 conditions per place. [2023-11-30 01:40:21,565 INFO L140 encePairwiseOnDemand]: 89/105 looper letters, 4883 selfloop transitions, 87 changer transitions 12/5062 dead transitions. [2023-11-30 01:40:21,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 5062 transitions, 151407 flow [2023-11-30 01:40:21,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 01:40:21,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 01:40:21,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 729 transitions. [2023-11-30 01:40:21,567 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6942857142857143 [2023-11-30 01:40:21,567 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 729 transitions. [2023-11-30 01:40:21,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 729 transitions. [2023-11-30 01:40:21,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:40:21,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 729 transitions. [2023-11-30 01:40:21,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.9) internal successors, (729), 10 states have internal predecessors, (729), 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) [2023-11-30 01:40:21,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:40:21,569 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:40:21,569 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 184 predicate places. [2023-11-30 01:40:21,569 INFO L500 AbstractCegarLoop]: Abstraction has has 286 places, 5062 transitions, 151407 flow [2023-11-30 01:40:21,569 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:40:21,569 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:40:21,569 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:40:21,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-30 01:40:21,774 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-30 01:40:21,774 INFO L425 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:40:21,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:40:21,774 INFO L85 PathProgramCache]: Analyzing trace with hash -602780829, now seen corresponding path program 9 times [2023-11-30 01:40:21,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:40:21,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22798310] [2023-11-30 01:40:21,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:40:21,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:40:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:40:22,197 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:40:22,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:40:22,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22798310] [2023-11-30 01:40:22,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22798310] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:40:22,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713843536] [2023-11-30 01:40:22,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-30 01:40:22,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:40:22,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:40:22,214 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:40:22,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-30 01:40:22,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-30 01:40:22,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:40:22,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:40:22,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:40:22,528 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 13 treesize of output 9 [2023-11-30 01:40:22,550 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:40:22,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:40:22,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713843536] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:40:22,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:40:22,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2023-11-30 01:40:22,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438776351] [2023-11-30 01:40:22,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:40:22,551 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:40:22,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:40:22,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:40:22,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-11-30 01:40:22,552 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:40:22,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 5062 transitions, 151407 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:40:22,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:40:22,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:40:22,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:40:45,541 INFO L124 PetriNetUnfolderBase]: 11770/28096 cut-off events. [2023-11-30 01:40:45,541 INFO L125 PetriNetUnfolderBase]: For 364315/367389 co-relation queries the response was YES. [2023-11-30 01:40:45,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351309 conditions, 28096 events. 11770/28096 cut-off events. For 364315/367389 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 257877 event pairs, 892 based on Foata normal form. 151/26634 useless extension candidates. Maximal degree in co-relation 350823. Up to 15622 conditions per place. [2023-11-30 01:40:45,985 INFO L140 encePairwiseOnDemand]: 88/105 looper letters, 5213 selfloop transitions, 117 changer transitions 12/5422 dead transitions. [2023-11-30 01:40:45,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 5422 transitions, 173013 flow [2023-11-30 01:40:45,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 01:40:45,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 01:40:45,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 926 transitions. [2023-11-30 01:40:45,987 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6783882783882784 [2023-11-30 01:40:45,987 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 926 transitions. [2023-11-30 01:40:45,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 926 transitions. [2023-11-30 01:40:45,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:40:45,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 926 transitions. [2023-11-30 01:40:45,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 71.23076923076923) internal successors, (926), 13 states have internal predecessors, (926), 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) [2023-11-30 01:40:45,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2023-11-30 01:40:45,989 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2023-11-30 01:40:45,989 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 196 predicate places. [2023-11-30 01:40:45,989 INFO L500 AbstractCegarLoop]: Abstraction has has 298 places, 5422 transitions, 173013 flow [2023-11-30 01:40:45,990 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:40:45,990 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:40:45,990 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:40:45,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-30 01:40:46,198 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:40:46,198 INFO L425 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:40:46,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:40:46,198 INFO L85 PathProgramCache]: Analyzing trace with hash 50712487, now seen corresponding path program 10 times [2023-11-30 01:40:46,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:40:46,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959201961] [2023-11-30 01:40:46,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:40:46,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:40:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:40:46,494 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:40:46,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:40:46,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959201961] [2023-11-30 01:40:46,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959201961] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:40:46,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209208099] [2023-11-30 01:40:46,494 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-30 01:40:46,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:40:46,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:40:46,495 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:40:46,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-30 01:40:46,675 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-30 01:40:46,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:40:46,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-30 01:40:46,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:40:46,816 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 11 treesize of output 7 [2023-11-30 01:40:46,845 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:40:46,845 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:40:46,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209208099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:40:46,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:40:46,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2023-11-30 01:40:46,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624229566] [2023-11-30 01:40:46,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:40:46,846 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:40:46,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:40:46,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:40:46,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2023-11-30 01:40:46,847 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:40:46,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 5422 transitions, 173013 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:40:46,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:40:46,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:40:46,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:41:10,643 INFO L124 PetriNetUnfolderBase]: 11770/28116 cut-off events. [2023-11-30 01:41:10,643 INFO L125 PetriNetUnfolderBase]: For 413953/417314 co-relation queries the response was YES. [2023-11-30 01:41:10,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373608 conditions, 28116 events. 11770/28116 cut-off events. For 413953/417314 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 258180 event pairs, 885 based on Foata normal form. 152/26655 useless extension candidates. Maximal degree in co-relation 373106. Up to 15633 conditions per place. [2023-11-30 01:41:10,925 INFO L140 encePairwiseOnDemand]: 89/105 looper letters, 5224 selfloop transitions, 119 changer transitions 12/5435 dead transitions. [2023-11-30 01:41:10,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 5435 transitions, 184139 flow [2023-11-30 01:41:10,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 01:41:10,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 01:41:10,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 712 transitions. [2023-11-30 01:41:10,942 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6780952380952381 [2023-11-30 01:41:10,942 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 712 transitions. [2023-11-30 01:41:10,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 712 transitions. [2023-11-30 01:41:10,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:41:10,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 712 transitions. [2023-11-30 01:41:10,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 71.2) internal successors, (712), 10 states have internal predecessors, (712), 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) [2023-11-30 01:41:10,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:41:10,944 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:41:10,945 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 205 predicate places. [2023-11-30 01:41:10,945 INFO L500 AbstractCegarLoop]: Abstraction has has 307 places, 5435 transitions, 184139 flow [2023-11-30 01:41:10,945 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:41:10,945 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:41:10,945 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:41:10,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-30 01:41:11,156 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:41:11,156 INFO L425 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:41:11,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:41:11,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1042174063, now seen corresponding path program 11 times [2023-11-30 01:41:11,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:41:11,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282898709] [2023-11-30 01:41:11,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:41:11,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:41:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:41:11,474 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:41:11,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:41:11,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282898709] [2023-11-30 01:41:11,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282898709] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:41:11,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699141927] [2023-11-30 01:41:11,475 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-30 01:41:11,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:41:11,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:41:11,497 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:41:11,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-30 01:41:11,656 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2023-11-30 01:41:11,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:41:11,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:41:11,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:41:11,817 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 13 treesize of output 9 [2023-11-30 01:41:11,834 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:41:11,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:41:11,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699141927] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:41:11,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:41:11,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2023-11-30 01:41:11,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629749933] [2023-11-30 01:41:11,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:41:11,834 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:41:11,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:41:11,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:41:11,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2023-11-30 01:41:11,835 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:41:11,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 5435 transitions, 184139 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:41:11,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:41:11,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:41:11,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:41:37,383 INFO L124 PetriNetUnfolderBase]: 11775/28136 cut-off events. [2023-11-30 01:41:37,383 INFO L125 PetriNetUnfolderBase]: For 463786/467403 co-relation queries the response was YES. [2023-11-30 01:41:37,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 396275 conditions, 28136 events. 11775/28136 cut-off events. For 463786/467403 co-relation queries the response was YES. Maximal size of possible extension queue 433. Compared 258423 event pairs, 865 based on Foata normal form. 179/26697 useless extension candidates. Maximal degree in co-relation 395757. Up to 15595 conditions per place. [2023-11-30 01:41:37,856 INFO L140 encePairwiseOnDemand]: 88/105 looper letters, 5222 selfloop transitions, 88 changer transitions 12/5402 dead transitions. [2023-11-30 01:41:37,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 5402 transitions, 193523 flow [2023-11-30 01:41:37,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 01:41:37,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 01:41:37,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 901 transitions. [2023-11-30 01:41:37,858 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6600732600732601 [2023-11-30 01:41:37,858 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 901 transitions. [2023-11-30 01:41:37,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 901 transitions. [2023-11-30 01:41:37,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:41:37,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 901 transitions. [2023-11-30 01:41:37,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 69.3076923076923) internal successors, (901), 13 states have internal predecessors, (901), 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) [2023-11-30 01:41:37,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2023-11-30 01:41:37,860 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2023-11-30 01:41:37,860 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 217 predicate places. [2023-11-30 01:41:37,860 INFO L500 AbstractCegarLoop]: Abstraction has has 319 places, 5402 transitions, 193523 flow [2023-11-30 01:41:37,861 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:41:37,861 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:41:37,861 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:41:37,871 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-30 01:41:38,065 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:41:38,065 INFO L425 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:41:38,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:41:38,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1044048566, now seen corresponding path program 3 times [2023-11-30 01:41:38,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:41:38,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298218247] [2023-11-30 01:41:38,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:41:38,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:41:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:41:38,468 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:41:38,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:41:38,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298218247] [2023-11-30 01:41:38,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298218247] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:41:38,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173174658] [2023-11-30 01:41:38,468 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-30 01:41:38,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:41:38,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:41:38,469 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:41:38,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-30 01:41:38,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-30 01:41:38,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:41:38,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:41:38,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:41:38,737 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 13 treesize of output 9 [2023-11-30 01:41:38,835 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:41:38,835 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:41:38,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173174658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:41:38,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:41:38,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2023-11-30 01:41:38,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801939486] [2023-11-30 01:41:38,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:41:38,836 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:41:38,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:41:38,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:41:38,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2023-11-30 01:41:38,836 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:41:38,837 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 5402 transitions, 193523 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:41:38,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:41:38,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:41:38,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:42:04,911 INFO L124 PetriNetUnfolderBase]: 11881/28410 cut-off events. [2023-11-30 01:42:04,912 INFO L125 PetriNetUnfolderBase]: For 525445/529389 co-relation queries the response was YES. [2023-11-30 01:42:04,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422494 conditions, 28410 events. 11881/28410 cut-off events. For 525445/529389 co-relation queries the response was YES. Maximal size of possible extension queue 433. Compared 261442 event pairs, 865 based on Foata normal form. 153/26942 useless extension candidates. Maximal degree in co-relation 421960. Up to 15673 conditions per place. [2023-11-30 01:42:05,216 INFO L140 encePairwiseOnDemand]: 90/105 looper letters, 5297 selfloop transitions, 167 changer transitions 12/5556 dead transitions. [2023-11-30 01:42:05,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 5556 transitions, 209853 flow [2023-11-30 01:42:05,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 01:42:05,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 01:42:05,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 695 transitions. [2023-11-30 01:42:05,217 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6619047619047619 [2023-11-30 01:42:05,217 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 695 transitions. [2023-11-30 01:42:05,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 695 transitions. [2023-11-30 01:42:05,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:42:05,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 695 transitions. [2023-11-30 01:42:05,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 69.5) internal successors, (695), 10 states have internal predecessors, (695), 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) [2023-11-30 01:42:05,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:42:05,219 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:42:05,219 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 226 predicate places. [2023-11-30 01:42:05,219 INFO L500 AbstractCegarLoop]: Abstraction has has 328 places, 5556 transitions, 209853 flow [2023-11-30 01:42:05,219 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:42:05,219 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:42:05,219 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:42:05,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-30 01:42:05,424 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:42:05,424 INFO L425 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:42:05,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:42:05,424 INFO L85 PathProgramCache]: Analyzing trace with hash -111958685, now seen corresponding path program 12 times [2023-11-30 01:42:05,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:42:05,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774728032] [2023-11-30 01:42:05,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:42:05,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:42:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:42:05,720 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:42:05,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:42:05,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774728032] [2023-11-30 01:42:05,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774728032] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:42:05,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142099540] [2023-11-30 01:42:05,721 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-30 01:42:05,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:42:05,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:42:05,722 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:42:05,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-30 01:42:05,863 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2023-11-30 01:42:05,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:42:05,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:42:05,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:42:06,010 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 13 treesize of output 9 [2023-11-30 01:42:06,050 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:42:06,050 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:42:06,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142099540] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:42:06,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:42:06,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2023-11-30 01:42:06,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152729843] [2023-11-30 01:42:06,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:42:06,050 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:42:06,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:42:06,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:42:06,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2023-11-30 01:42:06,051 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:42:06,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 5556 transitions, 209853 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:42:06,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:42:06,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:42:06,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:42:33,576 INFO L124 PetriNetUnfolderBase]: 11881/28427 cut-off events. [2023-11-30 01:42:33,576 INFO L125 PetriNetUnfolderBase]: For 584080/587881 co-relation queries the response was YES. [2023-11-30 01:42:33,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 445118 conditions, 28427 events. 11881/28427 cut-off events. For 584080/587881 co-relation queries the response was YES. Maximal size of possible extension queue 433. Compared 261726 event pairs, 876 based on Foata normal form. 159/26966 useless extension candidates. Maximal degree in co-relation 444568. Up to 15685 conditions per place. [2023-11-30 01:42:33,898 INFO L140 encePairwiseOnDemand]: 89/105 looper letters, 5360 selfloop transitions, 117 changer transitions 12/5569 dead transitions. [2023-11-30 01:42:33,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 5569 transitions, 221325 flow [2023-11-30 01:42:33,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 01:42:33,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 01:42:33,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 713 transitions. [2023-11-30 01:42:33,900 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.679047619047619 [2023-11-30 01:42:33,900 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 713 transitions. [2023-11-30 01:42:33,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 713 transitions. [2023-11-30 01:42:33,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:42:33,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 713 transitions. [2023-11-30 01:42:33,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 71.3) internal successors, (713), 10 states have internal predecessors, (713), 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) [2023-11-30 01:42:33,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:42:33,901 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:42:33,902 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 235 predicate places. [2023-11-30 01:42:33,902 INFO L500 AbstractCegarLoop]: Abstraction has has 337 places, 5569 transitions, 221325 flow [2023-11-30 01:42:33,902 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:42:33,902 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:42:33,902 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:42:33,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-30 01:42:34,107 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-30 01:42:34,107 INFO L425 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:42:34,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:42:34,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1039788931, now seen corresponding path program 13 times [2023-11-30 01:42:34,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:42:34,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470172259] [2023-11-30 01:42:34,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:42:34,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:42:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:42:34,364 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:42:34,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:42:34,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470172259] [2023-11-30 01:42:34,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470172259] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:42:34,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175848865] [2023-11-30 01:42:34,364 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-30 01:42:34,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:42:34,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:42:34,365 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:42:34,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-30 01:42:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:42:34,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:42:34,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:42:34,680 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 13 treesize of output 9 [2023-11-30 01:42:34,695 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:42:34,695 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:42:34,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175848865] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:42:34,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:42:34,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2023-11-30 01:42:34,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068417766] [2023-11-30 01:42:34,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:42:34,696 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:42:34,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:42:34,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:42:34,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2023-11-30 01:42:34,697 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:42:34,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 5569 transitions, 221325 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:42:34,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:42:34,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:42:34,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:43:01,212 INFO L124 PetriNetUnfolderBase]: 11775/28231 cut-off events. [2023-11-30 01:43:01,213 INFO L125 PetriNetUnfolderBase]: For 640842/644908 co-relation queries the response was YES. [2023-11-30 01:43:01,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463942 conditions, 28231 events. 11775/28231 cut-off events. For 640842/644908 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 260291 event pairs, 853 based on Foata normal form. 176/26786 useless extension candidates. Maximal degree in co-relation 463376. Up to 15572 conditions per place. [2023-11-30 01:43:01,548 INFO L140 encePairwiseOnDemand]: 88/105 looper letters, 5203 selfloop transitions, 111 changer transitions 14/5408 dead transitions. [2023-11-30 01:43:01,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 5408 transitions, 225419 flow [2023-11-30 01:43:01,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 01:43:01,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 01:43:01,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 884 transitions. [2023-11-30 01:43:01,552 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6476190476190476 [2023-11-30 01:43:01,552 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 884 transitions. [2023-11-30 01:43:01,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 884 transitions. [2023-11-30 01:43:01,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:43:01,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 884 transitions. [2023-11-30 01:43:01,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 68.0) internal successors, (884), 13 states have internal predecessors, (884), 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) [2023-11-30 01:43:01,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2023-11-30 01:43:01,554 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2023-11-30 01:43:01,558 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 247 predicate places. [2023-11-30 01:43:01,558 INFO L500 AbstractCegarLoop]: Abstraction has has 349 places, 5408 transitions, 225419 flow [2023-11-30 01:43:01,558 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:43:01,559 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:43:01,559 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:43:01,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-30 01:43:01,764 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-30 01:43:01,764 INFO L425 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:43:01,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:43:01,764 INFO L85 PathProgramCache]: Analyzing trace with hash 781182393, now seen corresponding path program 14 times [2023-11-30 01:43:01,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:43:01,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360822794] [2023-11-30 01:43:01,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:43:01,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:43:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:43:02,102 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:43:02,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:43:02,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360822794] [2023-11-30 01:43:02,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360822794] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:43:02,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674380823] [2023-11-30 01:43:02,103 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 01:43:02,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:43:02,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:43:02,104 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:43:02,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-30 01:43:02,344 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 01:43:02,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:43:02,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:43:02,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:43:02,476 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 13 treesize of output 9 [2023-11-30 01:43:02,553 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:43:02,553 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:43:02,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674380823] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:43:02,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:43:02,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2023-11-30 01:43:02,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459738233] [2023-11-30 01:43:02,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:43:02,554 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:43:02,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:43:02,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:43:02,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2023-11-30 01:43:02,554 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:43:02,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 5408 transitions, 225419 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:43:02,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:43:02,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:43:02,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:43:35,261 INFO L124 PetriNetUnfolderBase]: 12622/30231 cut-off events. [2023-11-30 01:43:35,261 INFO L125 PetriNetUnfolderBase]: For 760550/765247 co-relation queries the response was YES. [2023-11-30 01:43:35,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 520816 conditions, 30231 events. 12622/30231 cut-off events. For 760550/765247 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 282083 event pairs, 893 based on Foata normal form. 94/28608 useless extension candidates. Maximal degree in co-relation 520234. Up to 16748 conditions per place. [2023-11-30 01:43:35,789 INFO L140 encePairwiseOnDemand]: 90/105 looper letters, 5722 selfloop transitions, 96 changer transitions 14/5912 dead transitions. [2023-11-30 01:43:35,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 5912 transitions, 258423 flow [2023-11-30 01:43:35,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 01:43:35,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 01:43:35,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 711 transitions. [2023-11-30 01:43:35,790 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6771428571428572 [2023-11-30 01:43:35,790 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 711 transitions. [2023-11-30 01:43:35,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 711 transitions. [2023-11-30 01:43:35,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:43:35,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 711 transitions. [2023-11-30 01:43:35,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 71.1) internal successors, (711), 10 states have internal predecessors, (711), 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) [2023-11-30 01:43:35,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:43:35,792 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:43:35,792 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 256 predicate places. [2023-11-30 01:43:35,792 INFO L500 AbstractCegarLoop]: Abstraction has has 358 places, 5912 transitions, 258423 flow [2023-11-30 01:43:35,792 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:43:35,792 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:43:35,792 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:43:35,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-30 01:43:35,996 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:43:35,996 INFO L425 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:43:35,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:43:35,997 INFO L85 PathProgramCache]: Analyzing trace with hash -658135559, now seen corresponding path program 15 times [2023-11-30 01:43:35,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:43:35,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840468483] [2023-11-30 01:43:35,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:43:35,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:43:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:43:36,361 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:43:36,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:43:36,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840468483] [2023-11-30 01:43:36,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840468483] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:43:36,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737213130] [2023-11-30 01:43:36,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-30 01:43:36,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:43:36,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:43:36,363 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:43:36,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-30 01:43:36,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-30 01:43:36,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:43:36,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:43:36,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:43:36,708 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 13 treesize of output 9 [2023-11-30 01:43:36,768 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:43:36,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:43:36,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737213130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:43:36,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:43:36,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2023-11-30 01:43:36,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136283639] [2023-11-30 01:43:36,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:43:36,770 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:43:36,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:43:36,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:43:36,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-11-30 01:43:36,773 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:43:36,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 5912 transitions, 258423 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:43:36,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:43:36,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:43:36,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:44:13,503 INFO L124 PetriNetUnfolderBase]: 13333/31935 cut-off events. [2023-11-30 01:44:13,504 INFO L125 PetriNetUnfolderBase]: For 887759/892854 co-relation queries the response was YES. [2023-11-30 01:44:13,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 574781 conditions, 31935 events. 13333/31935 cut-off events. For 887759/892854 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 301391 event pairs, 946 based on Foata normal form. 102/30230 useless extension candidates. Maximal degree in co-relation 574183. Up to 17783 conditions per place. [2023-11-30 01:44:13,941 INFO L140 encePairwiseOnDemand]: 89/105 looper letters, 6160 selfloop transitions, 99 changer transitions 14/6353 dead transitions. [2023-11-30 01:44:13,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 6353 transitions, 290601 flow [2023-11-30 01:44:13,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 01:44:13,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 01:44:13,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 729 transitions. [2023-11-30 01:44:13,943 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6942857142857143 [2023-11-30 01:44:13,943 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 729 transitions. [2023-11-30 01:44:13,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 729 transitions. [2023-11-30 01:44:13,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:44:13,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 729 transitions. [2023-11-30 01:44:13,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.9) internal successors, (729), 10 states have internal predecessors, (729), 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) [2023-11-30 01:44:13,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:44:13,945 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:44:13,945 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 265 predicate places. [2023-11-30 01:44:13,945 INFO L500 AbstractCegarLoop]: Abstraction has has 367 places, 6353 transitions, 290601 flow [2023-11-30 01:44:13,960 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:44:13,960 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:44:13,960 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:44:13,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-30 01:44:14,165 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:44:14,165 INFO L425 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:44:14,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:44:14,166 INFO L85 PathProgramCache]: Analyzing trace with hash -79122153, now seen corresponding path program 16 times [2023-11-30 01:44:14,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:44:14,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524695822] [2023-11-30 01:44:14,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:44:14,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:44:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:44:14,672 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:44:14,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:44:14,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524695822] [2023-11-30 01:44:14,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524695822] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:44:14,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702101029] [2023-11-30 01:44:14,672 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-30 01:44:14,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:44:14,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:44:14,678 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:44:14,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-30 01:44:14,940 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-30 01:44:14,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:44:14,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 44 conjunts are in the unsatisfiable core [2023-11-30 01:44:14,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:44:15,122 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 11 treesize of output 7 [2023-11-30 01:44:15,138 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-30 01:44:15,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 01:44:15,161 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 18 treesize of output 12 [2023-11-30 01:44:15,272 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:44:15,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702101029] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-30 01:44:15,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-30 01:44:15,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11, 18] total 26 [2023-11-30 01:44:15,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584565992] [2023-11-30 01:44:15,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:44:15,273 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 01:44:15,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:44:15,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 01:44:15,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2023-11-30 01:44:15,274 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:44:15,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 6353 transitions, 290601 flow. Second operand has 9 states, 9 states have (on average 45.666666666666664) internal successors, (411), 9 states have internal predecessors, (411), 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) [2023-11-30 01:44:15,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:44:15,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:44:15,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:44:57,694 INFO L124 PetriNetUnfolderBase]: 12697/30467 cut-off events. [2023-11-30 01:44:57,694 INFO L125 PetriNetUnfolderBase]: For 923263/928797 co-relation queries the response was YES. [2023-11-30 01:44:57,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 572812 conditions, 30467 events. 12697/30467 cut-off events. For 923263/928797 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 285053 event pairs, 893 based on Foata normal form. 145/28895 useless extension candidates. Maximal degree in co-relation 572198. Up to 16886 conditions per place. [2023-11-30 01:44:58,107 INFO L140 encePairwiseOnDemand]: 89/105 looper letters, 5463 selfloop transitions, 421 changer transitions 14/5978 dead transitions. [2023-11-30 01:44:58,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 5978 transitions, 284895 flow [2023-11-30 01:44:58,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 01:44:58,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 01:44:58,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1028 transitions. [2023-11-30 01:44:58,110 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6993197278911565 [2023-11-30 01:44:58,110 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1028 transitions. [2023-11-30 01:44:58,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1028 transitions. [2023-11-30 01:44:58,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:44:58,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1028 transitions. [2023-11-30 01:44:58,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.42857142857143) internal successors, (1028), 14 states have internal predecessors, (1028), 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) [2023-11-30 01:44:58,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 105.0) internal successors, (1575), 15 states have internal predecessors, (1575), 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) [2023-11-30 01:44:58,112 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 105.0) internal successors, (1575), 15 states have internal predecessors, (1575), 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) [2023-11-30 01:44:58,112 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 278 predicate places. [2023-11-30 01:44:58,112 INFO L500 AbstractCegarLoop]: Abstraction has has 380 places, 5978 transitions, 284895 flow [2023-11-30 01:44:58,113 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 45.666666666666664) internal successors, (411), 9 states have internal predecessors, (411), 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) [2023-11-30 01:44:58,113 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:44:58,113 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:44:58,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-30 01:44:58,318 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-30 01:44:58,318 INFO L425 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:44:58,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:44:58,318 INFO L85 PathProgramCache]: Analyzing trace with hash -731735185, now seen corresponding path program 17 times [2023-11-30 01:44:58,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:44:58,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321971820] [2023-11-30 01:44:58,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:44:58,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:44:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:44:58,570 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:44:58,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:44:58,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321971820] [2023-11-30 01:44:58,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321971820] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:44:58,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011695528] [2023-11-30 01:44:58,571 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-30 01:44:58,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:44:58,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:44:58,571 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:44:58,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-30 01:44:58,753 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2023-11-30 01:44:58,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:44:58,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:44:58,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:44:58,891 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 13 treesize of output 9 [2023-11-30 01:44:58,933 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:44:58,933 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:44:58,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011695528] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:44:58,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:44:58,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2023-11-30 01:44:58,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135450034] [2023-11-30 01:44:58,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:44:58,934 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:44:58,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:44:58,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:44:58,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-11-30 01:44:58,935 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:44:58,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 5978 transitions, 284895 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:44:58,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:44:58,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:44:58,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:45:38,777 INFO L124 PetriNetUnfolderBase]: 12697/30484 cut-off events. [2023-11-30 01:45:38,777 INFO L125 PetriNetUnfolderBase]: For 1002910/1008755 co-relation queries the response was YES. [2023-11-30 01:45:38,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 597104 conditions, 30484 events. 12697/30484 cut-off events. For 1002910/1008755 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 285232 event pairs, 913 based on Foata normal form. 115/28883 useless extension candidates. Maximal degree in co-relation 596474. Up to 16897 conditions per place. [2023-11-30 01:45:39,242 INFO L140 encePairwiseOnDemand]: 89/105 looper letters, 5794 selfloop transitions, 103 changer transitions 14/5991 dead transitions. [2023-11-30 01:45:39,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 5991 transitions, 297341 flow [2023-11-30 01:45:39,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 01:45:39,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 01:45:39,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 708 transitions. [2023-11-30 01:45:39,253 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6742857142857143 [2023-11-30 01:45:39,253 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 708 transitions. [2023-11-30 01:45:39,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 708 transitions. [2023-11-30 01:45:39,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:45:39,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 708 transitions. [2023-11-30 01:45:39,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 70.8) internal successors, (708), 10 states have internal predecessors, (708), 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) [2023-11-30 01:45:39,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:45:39,255 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:45:39,259 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 287 predicate places. [2023-11-30 01:45:39,259 INFO L500 AbstractCegarLoop]: Abstraction has has 389 places, 5991 transitions, 297341 flow [2023-11-30 01:45:39,259 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:45:39,259 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:45:39,259 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:45:39,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-30 01:45:39,465 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-30 01:45:39,465 INFO L425 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:45:39,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:45:39,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1895162543, now seen corresponding path program 18 times [2023-11-30 01:45:39,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:45:39,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989053770] [2023-11-30 01:45:39,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:45:39,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:45:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:45:39,928 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:45:39,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:45:39,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989053770] [2023-11-30 01:45:39,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989053770] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:45:39,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550534615] [2023-11-30 01:45:39,928 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-30 01:45:39,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:45:39,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:45:39,948 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:45:39,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-30 01:45:40,126 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2023-11-30 01:45:40,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:45:40,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:45:40,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:45:40,289 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 13 treesize of output 9 [2023-11-30 01:45:40,307 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:45:40,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:45:40,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550534615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:45:40,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:45:40,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2023-11-30 01:45:40,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553823898] [2023-11-30 01:45:40,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:45:40,308 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:45:40,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:45:40,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:45:40,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2023-11-30 01:45:40,308 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:45:40,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 5991 transitions, 297341 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:45:40,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:45:40,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:45:40,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:46:24,097 INFO L124 PetriNetUnfolderBase]: 13368/32078 cut-off events. [2023-11-30 01:46:24,097 INFO L125 PetriNetUnfolderBase]: For 1148175/1154717 co-relation queries the response was YES. [2023-11-30 01:46:24,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 653450 conditions, 32078 events. 13368/32078 cut-off events. For 1148175/1154717 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 303670 event pairs, 937 based on Foata normal form. 154/30421 useless extension candidates. Maximal degree in co-relation 652804. Up to 17811 conditions per place. [2023-11-30 01:46:24,671 INFO L140 encePairwiseOnDemand]: 88/105 looper letters, 6168 selfloop transitions, 103 changer transitions 14/6365 dead transitions. [2023-11-30 01:46:24,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 6365 transitions, 328725 flow [2023-11-30 01:46:24,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 01:46:24,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 01:46:24,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 897 transitions. [2023-11-30 01:46:24,673 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2023-11-30 01:46:24,673 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 897 transitions. [2023-11-30 01:46:24,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 897 transitions. [2023-11-30 01:46:24,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:46:24,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 897 transitions. [2023-11-30 01:46:24,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 69.0) internal successors, (897), 13 states have internal predecessors, (897), 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) [2023-11-30 01:46:24,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2023-11-30 01:46:24,675 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2023-11-30 01:46:24,676 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 299 predicate places. [2023-11-30 01:46:24,676 INFO L500 AbstractCegarLoop]: Abstraction has has 401 places, 6365 transitions, 328725 flow [2023-11-30 01:46:24,676 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:46:24,676 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:46:24,676 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:46:24,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-30 01:46:24,884 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-30 01:46:24,884 INFO L425 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:46:24,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:46:24,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1597725799, now seen corresponding path program 19 times [2023-11-30 01:46:24,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:46:24,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957824218] [2023-11-30 01:46:24,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:46:24,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:46:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:46:25,195 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:46:25,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:46:25,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957824218] [2023-11-30 01:46:25,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957824218] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:46:25,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494147160] [2023-11-30 01:46:25,195 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-30 01:46:25,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:46:25,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:46:25,197 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:46:25,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-30 01:46:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:46:25,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:46:25,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:46:25,528 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 13 treesize of output 9 [2023-11-30 01:46:25,559 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:46:25,559 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:46:25,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494147160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:46:25,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:46:25,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2023-11-30 01:46:25,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709963508] [2023-11-30 01:46:25,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:46:25,560 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:46:25,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:46:25,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:46:25,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-11-30 01:46:25,560 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:46:25,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 6365 transitions, 328725 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:46:25,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:46:25,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:46:25,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:47:13,709 INFO L124 PetriNetUnfolderBase]: 13368/32097 cut-off events. [2023-11-30 01:47:13,710 INFO L125 PetriNetUnfolderBase]: For 1243632/1250580 co-relation queries the response was YES. [2023-11-30 01:47:13,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679018 conditions, 32097 events. 13368/32097 cut-off events. For 1243632/1250580 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 303899 event pairs, 937 based on Foata normal form. 150/30436 useless extension candidates. Maximal degree in co-relation 678356. Up to 17821 conditions per place. [2023-11-30 01:47:14,342 INFO L140 encePairwiseOnDemand]: 89/105 looper letters, 6133 selfloop transitions, 151 changer transitions 14/6378 dead transitions. [2023-11-30 01:47:14,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 6378 transitions, 341997 flow [2023-11-30 01:47:14,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 01:47:14,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 01:47:14,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 691 transitions. [2023-11-30 01:47:14,343 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6580952380952381 [2023-11-30 01:47:14,343 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 691 transitions. [2023-11-30 01:47:14,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 691 transitions. [2023-11-30 01:47:14,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:47:14,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 691 transitions. [2023-11-30 01:47:14,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 69.1) internal successors, (691), 10 states have internal predecessors, (691), 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) [2023-11-30 01:47:14,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:47:14,345 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:47:14,345 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 308 predicate places. [2023-11-30 01:47:14,345 INFO L500 AbstractCegarLoop]: Abstraction has has 410 places, 6378 transitions, 341997 flow [2023-11-30 01:47:14,346 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:47:14,346 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:47:14,346 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:47:14,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-30 01:47:14,551 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:47:14,552 INFO L425 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:47:14,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:47:14,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1797676671, now seen corresponding path program 20 times [2023-11-30 01:47:14,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:47:14,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644734748] [2023-11-30 01:47:14,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:47:14,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:47:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:47:15,051 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:47:15,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:47:15,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644734748] [2023-11-30 01:47:15,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644734748] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:47:15,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994830851] [2023-11-30 01:47:15,051 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 01:47:15,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:47:15,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:47:15,052 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:47:15,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-30 01:47:15,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 01:47:15,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:47:15,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:47:15,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:47:15,384 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 13 treesize of output 9 [2023-11-30 01:47:15,401 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:47:15,401 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:47:15,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994830851] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:47:15,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:47:15,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2023-11-30 01:47:15,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831617212] [2023-11-30 01:47:15,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:47:15,401 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:47:15,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:47:15,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:47:15,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2023-11-30 01:47:15,402 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:47:15,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 6378 transitions, 341997 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:47:15,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:47:15,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:47:15,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:48:06,535 INFO L124 PetriNetUnfolderBase]: 13287/31954 cut-off events. [2023-11-30 01:48:06,535 INFO L125 PetriNetUnfolderBase]: For 1329539/1336766 co-relation queries the response was YES. [2023-11-30 01:48:06,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 700869 conditions, 31954 events. 13287/31954 cut-off events. For 1329539/1336766 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 303451 event pairs, 921 based on Foata normal form. 178/30318 useless extension candidates. Maximal degree in co-relation 700191. Up to 17726 conditions per place. [2023-11-30 01:48:07,030 INFO L140 encePairwiseOnDemand]: 88/105 looper letters, 6036 selfloop transitions, 110 changer transitions 16/6242 dead transitions. [2023-11-30 01:48:07,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 6242 transitions, 346851 flow [2023-11-30 01:48:07,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 01:48:07,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 01:48:07,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 881 transitions. [2023-11-30 01:48:07,032 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6454212454212455 [2023-11-30 01:48:07,032 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 881 transitions. [2023-11-30 01:48:07,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 881 transitions. [2023-11-30 01:48:07,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:48:07,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 881 transitions. [2023-11-30 01:48:07,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 67.76923076923077) internal successors, (881), 13 states have internal predecessors, (881), 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) [2023-11-30 01:48:07,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2023-11-30 01:48:07,034 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2023-11-30 01:48:07,034 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 320 predicate places. [2023-11-30 01:48:07,034 INFO L500 AbstractCegarLoop]: Abstraction has has 422 places, 6242 transitions, 346851 flow [2023-11-30 01:48:07,034 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:48:07,034 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:48:07,034 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:48:07,042 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-30 01:48:07,239 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:48:07,239 INFO L425 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:48:07,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:48:07,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1981037935, now seen corresponding path program 21 times [2023-11-30 01:48:07,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:48:07,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524281328] [2023-11-30 01:48:07,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:48:07,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:48:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:48:07,590 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:48:07,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:48:07,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524281328] [2023-11-30 01:48:07,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524281328] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:48:07,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294056006] [2023-11-30 01:48:07,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-30 01:48:07,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:48:07,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:48:07,604 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:48:07,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-30 01:48:07,807 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-30 01:48:07,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:48:07,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:48:07,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:48:07,933 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 13 treesize of output 9 [2023-11-30 01:48:08,009 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:48:08,010 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:48:08,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294056006] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:48:08,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:48:08,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2023-11-30 01:48:08,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770077694] [2023-11-30 01:48:08,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:48:08,010 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:48:08,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:48:08,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:48:08,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-11-30 01:48:08,011 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:48:08,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 6242 transitions, 346851 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:48:08,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:48:08,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:48:08,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:48:59,318 INFO L124 PetriNetUnfolderBase]: 13313/32032 cut-off events. [2023-11-30 01:48:59,319 INFO L125 PetriNetUnfolderBase]: For 1434781/1442525 co-relation queries the response was YES. [2023-11-30 01:48:59,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 727821 conditions, 32032 events. 13313/32032 cut-off events. For 1434781/1442525 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 304308 event pairs, 914 based on Foata normal form. 145/30364 useless extension candidates. Maximal degree in co-relation 727127. Up to 17785 conditions per place. [2023-11-30 01:48:59,851 INFO L140 encePairwiseOnDemand]: 90/105 looper letters, 6040 selfloop transitions, 134 changer transitions 16/6270 dead transitions. [2023-11-30 01:48:59,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 6270 transitions, 360791 flow [2023-11-30 01:48:59,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 01:48:59,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 01:48:59,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 694 transitions. [2023-11-30 01:48:59,853 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.660952380952381 [2023-11-30 01:48:59,853 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 694 transitions. [2023-11-30 01:48:59,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 694 transitions. [2023-11-30 01:48:59,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:48:59,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 694 transitions. [2023-11-30 01:48:59,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 69.4) internal successors, (694), 10 states have internal predecessors, (694), 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) [2023-11-30 01:48:59,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:48:59,856 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 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) [2023-11-30 01:48:59,856 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 329 predicate places. [2023-11-30 01:48:59,857 INFO L500 AbstractCegarLoop]: Abstraction has has 431 places, 6270 transitions, 360791 flow [2023-11-30 01:48:59,857 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:48:59,857 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:48:59,857 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:48:59,863 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-30 01:49:00,060 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:49:00,060 INFO L425 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:49:00,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:49:00,061 INFO L85 PathProgramCache]: Analyzing trace with hash 874611409, now seen corresponding path program 22 times [2023-11-30 01:49:00,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:49:00,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783151724] [2023-11-30 01:49:00,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:49:00,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:49:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:49:00,551 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:49:00,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:49:00,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783151724] [2023-11-30 01:49:00,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783151724] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:49:00,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780564748] [2023-11-30 01:49:00,552 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-30 01:49:00,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:49:00,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:49:00,553 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:49:00,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-30 01:49:00,812 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-30 01:49:00,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:49:00,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 44 conjunts are in the unsatisfiable core [2023-11-30 01:49:00,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:49:01,053 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 11 treesize of output 7 [2023-11-30 01:49:01,095 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-30 01:49:01,095 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 01:49:01,128 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 18 treesize of output 12 [2023-11-30 01:49:01,206 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:49:01,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780564748] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-30 01:49:01,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-30 01:49:01,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11, 18] total 27 [2023-11-30 01:49:01,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744246580] [2023-11-30 01:49:01,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:49:01,206 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-30 01:49:01,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:49:01,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-30 01:49:01,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=624, Unknown=0, NotChecked=0, Total=702 [2023-11-30 01:49:01,207 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:49:01,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 6270 transitions, 360791 flow. Second operand has 9 states, 9 states have (on average 45.666666666666664) internal successors, (411), 9 states have internal predecessors, (411), 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) [2023-11-30 01:49:01,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:49:01,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:49:01,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:50:01,215 INFO L124 PetriNetUnfolderBase]: 14707/35438 cut-off events. [2023-11-30 01:50:01,215 INFO L125 PetriNetUnfolderBase]: For 1692890/1700150 co-relation queries the response was YES. [2023-11-30 01:50:01,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 830339 conditions, 35438 events. 14707/35438 cut-off events. For 1692890/1700150 co-relation queries the response was YES. Maximal size of possible extension queue 670. Compared 341165 event pairs, 1008 based on Foata normal form. 131/33559 useless extension candidates. Maximal degree in co-relation 829629. Up to 19592 conditions per place. [2023-11-30 01:50:01,827 INFO L140 encePairwiseOnDemand]: 90/105 looper letters, 6474 selfloop transitions, 560 changer transitions 16/7130 dead transitions. [2023-11-30 01:50:01,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 7130 transitions, 424835 flow [2023-11-30 01:50:01,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 01:50:01,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 01:50:01,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 984 transitions. [2023-11-30 01:50:01,832 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6693877551020408 [2023-11-30 01:50:01,832 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 984 transitions. [2023-11-30 01:50:01,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 984 transitions. [2023-11-30 01:50:01,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:50:01,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 984 transitions. [2023-11-30 01:50:01,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 70.28571428571429) internal successors, (984), 14 states have internal predecessors, (984), 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) [2023-11-30 01:50:01,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 105.0) internal successors, (1575), 15 states have internal predecessors, (1575), 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) [2023-11-30 01:50:01,834 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 105.0) internal successors, (1575), 15 states have internal predecessors, (1575), 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) [2023-11-30 01:50:01,834 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 342 predicate places. [2023-11-30 01:50:01,834 INFO L500 AbstractCegarLoop]: Abstraction has has 444 places, 7130 transitions, 424835 flow [2023-11-30 01:50:01,834 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 45.666666666666664) internal successors, (411), 9 states have internal predecessors, (411), 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) [2023-11-30 01:50:01,834 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:50:01,834 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:50:01,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-30 01:50:02,040 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-30 01:50:02,040 INFO L425 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:50:02,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:50:02,040 INFO L85 PathProgramCache]: Analyzing trace with hash -793458159, now seen corresponding path program 23 times [2023-11-30 01:50:02,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:50:02,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537132395] [2023-11-30 01:50:02,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:50:02,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:50:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:50:02,499 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:50:02,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:50:02,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537132395] [2023-11-30 01:50:02,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537132395] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:50:02,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387118975] [2023-11-30 01:50:02,499 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-30 01:50:02,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:50:02,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:50:02,500 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:50:02,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-30 01:50:02,715 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2023-11-30 01:50:02,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:50:02,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:50:02,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:50:03,013 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 13 treesize of output 9 [2023-11-30 01:50:03,029 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:50:03,029 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:50:03,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387118975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:50:03,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:50:03,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2023-11-30 01:50:03,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618870340] [2023-11-30 01:50:03,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:50:03,030 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:50:03,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:50:03,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:50:03,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-11-30 01:50:03,031 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:50:03,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 7130 transitions, 424835 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:50:03,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:50:03,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:50:03,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 01:51:16,242 INFO L124 PetriNetUnfolderBase]: 14586/35185 cut-off events. [2023-11-30 01:51:16,243 INFO L125 PetriNetUnfolderBase]: For 1798622/1806211 co-relation queries the response was YES. [2023-11-30 01:51:16,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 851339 conditions, 35185 events. 14586/35185 cut-off events. For 1798622/1806211 co-relation queries the response was YES. Maximal size of possible extension queue 734. Compared 339618 event pairs, 988 based on Foata normal form. 141/33321 useless extension candidates. Maximal degree in co-relation 850613. Up to 19452 conditions per place. [2023-11-30 01:51:16,868 INFO L140 encePairwiseOnDemand]: 88/105 looper letters, 6778 selfloop transitions, 148 changer transitions 16/7022 dead transitions. [2023-11-30 01:51:16,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 7022 transitions, 432113 flow [2023-11-30 01:51:16,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 01:51:16,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 01:51:16,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 860 transitions. [2023-11-30 01:51:16,874 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.63003663003663 [2023-11-30 01:51:16,874 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 860 transitions. [2023-11-30 01:51:16,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 860 transitions. [2023-11-30 01:51:16,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 01:51:16,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 860 transitions. [2023-11-30 01:51:16,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 66.15384615384616) internal successors, (860), 13 states have internal predecessors, (860), 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) [2023-11-30 01:51:16,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2023-11-30 01:51:16,878 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 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) [2023-11-30 01:51:16,879 INFO L307 CegarLoopForPetriNet]: 102 programPoint places, 354 predicate places. [2023-11-30 01:51:16,879 INFO L500 AbstractCegarLoop]: Abstraction has has 456 places, 7022 transitions, 432113 flow [2023-11-30 01:51:16,879 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:51:16,879 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 01:51:16,879 INFO L232 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 01:51:16,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-30 01:51:17,084 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:51:17,084 INFO L425 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 01:51:17,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 01:51:17,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1551228669, now seen corresponding path program 24 times [2023-11-30 01:51:17,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 01:51:17,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243591091] [2023-11-30 01:51:17,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 01:51:17,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 01:51:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 01:51:17,459 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-30 01:51:17,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 01:51:17,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243591091] [2023-11-30 01:51:17,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243591091] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 01:51:17,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562613954] [2023-11-30 01:51:17,459 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-30 01:51:17,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:51:17,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 01:51:17,460 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 01:51:17,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-30 01:51:17,623 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2023-11-30 01:51:17,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 01:51:17,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-30 01:51:17,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 01:51:17,943 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 13 treesize of output 9 [2023-11-30 01:51:17,963 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-30 01:51:17,963 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 01:51:17,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562613954] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 01:51:17,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 01:51:17,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2023-11-30 01:51:17,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200998989] [2023-11-30 01:51:17,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 01:51:17,964 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 01:51:17,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 01:51:17,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 01:51:17,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-11-30 01:51:17,964 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 105 [2023-11-30 01:51:17,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 7022 transitions, 432113 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2023-11-30 01:51:17,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 01:51:17,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 105 [2023-11-30 01:51:17,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-11-30 01:51:55,856 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-30 01:51:55,856 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 [2023-11-30 01:51:55,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 01:51:55,881 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-11-30 01:51:55,887 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-30 01:51:56,086 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 01:51:56,088 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (10states, 42/105 universal loopers) in iteration 35,while PetriNetUnfolder was constructing finite prefix that currently has 457094 conditions, 17723 events (7025/17722 cut-off events. For 963435/971999 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 173299 event pairs, 238 based on Foata normal form. 199/17722 useless extension candidates. Maximal degree in co-relation 456352. Up to 9654 conditions per place.). [2023-11-30 01:51:56,089 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-11-30 01:51:56,089 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-30 01:51:56,089 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-11-30 01:51:56,089 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-11-30 01:51:56,089 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-11-30 01:51:56,089 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-11-30 01:51:56,090 INFO L457 BasicCegarLoop]: Path program histogram: [24, 3, 2, 2, 2, 1, 1] [2023-11-30 01:51:56,094 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 01:51:56,094 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 01:51:56,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:51:56 BasicIcfg [2023-11-30 01:51:56,101 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 01:51:56,101 INFO L158 Benchmark]: Toolchain (without parser) took 844788.16ms. Allocated memory was 608.2MB in the beginning and 6.5GB in the end (delta: 5.9GB). Free memory was 552.2MB in the beginning and 2.0GB in the end (delta: -1.5GB). Peak memory consumption was 5.3GB. Max. memory is 16.0GB. [2023-11-30 01:51:56,101 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 352.3MB. Free memory is still 300.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 01:51:56,101 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.76ms. Allocated memory is still 608.2MB. Free memory was 551.9MB in the beginning and 523.9MB in the end (delta: 28.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-11-30 01:51:56,102 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.43ms. Allocated memory is still 608.2MB. Free memory was 523.9MB in the beginning and 521.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 01:51:56,102 INFO L158 Benchmark]: Boogie Preprocessor took 34.37ms. Allocated memory is still 608.2MB. Free memory was 521.3MB in the beginning and 519.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 01:51:56,102 INFO L158 Benchmark]: RCFGBuilder took 427.73ms. Allocated memory is still 608.2MB. Free memory was 519.2MB in the beginning and 561.5MB in the end (delta: -42.3MB). Peak memory consumption was 14.3MB. Max. memory is 16.0GB. [2023-11-30 01:51:56,102 INFO L158 Benchmark]: TraceAbstraction took 843789.74ms. Allocated memory was 608.2MB in the beginning and 6.5GB in the end (delta: 5.9GB). Free memory was 561.3MB in the beginning and 2.0GB in the end (delta: -1.5GB). Peak memory consumption was 5.3GB. Max. memory is 16.0GB. [2023-11-30 01:51:56,104 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 352.3MB. Free memory is still 300.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 474.76ms. Allocated memory is still 608.2MB. Free memory was 551.9MB in the beginning and 523.9MB in the end (delta: 28.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 55.43ms. Allocated memory is still 608.2MB. Free memory was 523.9MB in the beginning and 521.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.37ms. Allocated memory is still 608.2MB. Free memory was 521.3MB in the beginning and 519.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 427.73ms. Allocated memory is still 608.2MB. Free memory was 519.2MB in the beginning and 561.5MB in the end (delta: -42.3MB). Peak memory consumption was 14.3MB. Max. memory is 16.0GB. * TraceAbstraction took 843789.74ms. Allocated memory was 608.2MB in the beginning and 6.5GB in the end (delta: 5.9GB). Free memory was 561.3MB in the beginning and 2.0GB in the end (delta: -1.5GB). Peak memory consumption was 5.3GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 923]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (10states, 42/105 universal loopers) in iteration 35,while PetriNetUnfolder was constructing finite prefix that currently has 457094 conditions, 17723 events (7025/17722 cut-off events. For 963435/971999 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 173299 event pairs, 238 based on Foata normal form. 199/17722 useless extension candidates. Maximal degree in co-relation 456352. Up to 9654 conditions per place.). - TimeoutResultAtElement [Line: 923]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (10states, 42/105 universal loopers) in iteration 35,while PetriNetUnfolder was constructing finite prefix that currently has 457094 conditions, 17723 events (7025/17722 cut-off events. For 963435/971999 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 173299 event pairs, 238 based on Foata normal form. 199/17722 useless extension candidates. Maximal degree in co-relation 456352. Up to 9654 conditions per place.). - TimeoutResultAtElement [Line: 937]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (10states, 42/105 universal loopers) in iteration 35,while PetriNetUnfolder was constructing finite prefix that currently has 457094 conditions, 17723 events (7025/17722 cut-off events. For 963435/971999 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 173299 event pairs, 238 based on Foata normal form. 199/17722 useless extension candidates. Maximal degree in co-relation 456352. Up to 9654 conditions per place.). - TimeoutResultAtElement [Line: 923]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (10states, 42/105 universal loopers) in iteration 35,while PetriNetUnfolder was constructing finite prefix that currently has 457094 conditions, 17723 events (7025/17722 cut-off events. For 963435/971999 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 173299 event pairs, 238 based on Foata normal form. 199/17722 useless extension candidates. Maximal degree in co-relation 456352. Up to 9654 conditions per place.). - TimeoutResultAtElement [Line: 923]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (10states, 42/105 universal loopers) in iteration 35,while PetriNetUnfolder was constructing finite prefix that currently has 457094 conditions, 17723 events (7025/17722 cut-off events. For 963435/971999 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 173299 event pairs, 238 based on Foata normal form. 199/17722 useless extension candidates. Maximal degree in co-relation 456352. Up to 9654 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 139 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 843.7s, OverallIterations: 35, TraceHistogramMax: 10, PathProgramHistogramMax: 24, EmptinessCheckTime: 0.0s, AutomataDifference: 811.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11165 SdHoareTripleChecker+Valid, 10.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11165 mSDsluCounter, 17378 SdHoareTripleChecker+Invalid, 8.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13587 mSDsCounter, 112 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16987 IncrementalHoareTripleChecker+Invalid, 17099 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 112 mSolverCounterUnsat, 3791 mSDtfsCounter, 16987 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3917 GetRequests, 3128 SyntacticMatches, 11 SemanticMatches, 778 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3836 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=432113occurred in iteration=34, InterpolantAutomatonStates: 388, 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: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 19.2s InterpolantComputationTime, 6145 NumberOfCodeBlocks, 5395 NumberOfCodeBlocksAsserted, 111 NumberOfCheckSat, 6429 ConstructedInterpolants, 0 QuantifiedInterpolants, 23562 SizeOfPredicates, 316 NumberOfNonLiveVariables, 6095 ConjunctsInSsa, 800 ConjunctsInUnsatCore, 72 InterpolantComputations, 32 PerfectInterpolantSequences, 12708/14283 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown