/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_05-funloop_hard2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 06:58:57,471 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 06:58:57,534 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-VariableLbe.epf [2023-08-26 06:58:57,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 06:58:57,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 06:58:57,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 06:58:57,562 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 06:58:57,562 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 06:58:57,562 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 06:58:57,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 06:58:57,565 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 06:58:57,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 06:58:57,566 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 06:58:57,567 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 06:58:57,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 06:58:57,567 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 06:58:57,567 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 06:58:57,567 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 06:58:57,567 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 06:58:57,568 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 06:58:57,568 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 06:58:57,568 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 06:58:57,569 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 06:58:57,569 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 06:58:57,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 06:58:57,569 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 06:58:57,569 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 06:58:57,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:58:57,570 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 06:58:57,570 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 06:58:57,571 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 06:58:57,571 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 06:58:57,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 06:58:57,571 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 06:58:57,571 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 06:58:57,572 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 06:58:57,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 06:58:57,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 06:58:57,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 06:58:57,875 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 06:58:57,875 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 06:58:57,876 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_05-funloop_hard2.i [2023-08-26 06:58:58,774 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 06:58:58,988 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 06:58:58,989 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_05-funloop_hard2.i [2023-08-26 06:58:59,009 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32a5fabf9/2cf72315c2384bac8fecbf3172056185/FLAG9413f21de [2023-08-26 06:58:59,019 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32a5fabf9/2cf72315c2384bac8fecbf3172056185 [2023-08-26 06:58:59,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 06:58:59,024 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 06:58:59,024 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 06:58:59,025 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 06:58:59,026 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 06:58:59,027 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:58:59" (1/1) ... [2023-08-26 06:58:59,028 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f9db48c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:59, skipping insertion in model container [2023-08-26 06:58:59,028 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:58:59" (1/1) ... [2023-08-26 06:58:59,072 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 06:58:59,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:58:59,405 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 06:58:59,426 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 06:58:59,427 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 06:58:59,432 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [736] [2023-08-26 06:58:59,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:58:59,496 INFO L206 MainTranslator]: Completed translation [2023-08-26 06:58:59,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:59 WrapperNode [2023-08-26 06:58:59,497 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 06:58:59,497 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 06:58:59,498 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 06:58:59,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 06:58:59,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:59" (1/1) ... [2023-08-26 06:58:59,526 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:59" (1/1) ... [2023-08-26 06:58:59,541 INFO L138 Inliner]: procedures = 262, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 116 [2023-08-26 06:58:59,542 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 06:58:59,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 06:58:59,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 06:58:59,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 06:58:59,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:59" (1/1) ... [2023-08-26 06:58:59,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:59" (1/1) ... [2023-08-26 06:58:59,555 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:59" (1/1) ... [2023-08-26 06:58:59,555 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:59" (1/1) ... [2023-08-26 06:58:59,562 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:59" (1/1) ... [2023-08-26 06:58:59,564 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:59" (1/1) ... [2023-08-26 06:58:59,565 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:59" (1/1) ... [2023-08-26 06:58:59,565 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:59" (1/1) ... [2023-08-26 06:58:59,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 06:58:59,568 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 06:58:59,568 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 06:58:59,568 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 06:58:59,568 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:59" (1/1) ... [2023-08-26 06:58:59,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:58:59,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:58:59,593 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) [2023-08-26 06:58:59,609 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 [2023-08-26 06:58:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 06:58:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 06:58:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 06:58:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 06:58:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 06:58:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 06:58:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 06:58:59,644 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 06:58:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 06:58:59,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 06:58:59,645 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 06:58:59,761 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 06:58:59,762 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 06:58:59,946 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 06:58:59,951 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 06:58:59,951 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-26 06:58:59,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:58:59 BoogieIcfgContainer [2023-08-26 06:58:59,952 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 06:58:59,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 06:58:59,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 06:58:59,956 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 06:58:59,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 06:58:59" (1/3) ... [2023-08-26 06:58:59,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c900504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:58:59, skipping insertion in model container [2023-08-26 06:58:59,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:58:59" (2/3) ... [2023-08-26 06:58:59,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c900504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:58:59, skipping insertion in model container [2023-08-26 06:58:59,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:58:59" (3/3) ... [2023-08-26 06:58:59,957 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2023-08-26 06:58:59,968 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 06:58:59,968 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-26 06:58:59,968 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 06:59:00,012 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 06:59:00,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 123 transitions, 251 flow [2023-08-26 06:59:00,071 INFO L124 PetriNetUnfolderBase]: 6/122 cut-off events. [2023-08-26 06:59:00,071 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:59:00,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 122 events. 6/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 223 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2023-08-26 06:59:00,077 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 123 transitions, 251 flow [2023-08-26 06:59:00,080 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 122 transitions, 247 flow [2023-08-26 06:59:00,082 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 06:59:00,088 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 122 transitions, 247 flow [2023-08-26 06:59:00,089 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 122 transitions, 247 flow [2023-08-26 06:59:00,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 122 transitions, 247 flow [2023-08-26 06:59:00,112 INFO L124 PetriNetUnfolderBase]: 6/122 cut-off events. [2023-08-26 06:59:00,112 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:59:00,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 122 events. 6/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 223 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2023-08-26 06:59:00,115 INFO L119 LiptonReduction]: Number of co-enabled transitions 4588 [2023-08-26 06:59:01,408 INFO L134 LiptonReduction]: Checked pairs total: 13982 [2023-08-26 06:59:01,408 INFO L136 LiptonReduction]: Total number of compositions: 70 [2023-08-26 06:59:01,424 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 06:59:01,430 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7e05d726, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 06:59:01,430 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-26 06:59:01,434 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 06:59:01,434 INFO L124 PetriNetUnfolderBase]: 1/25 cut-off events. [2023-08-26 06:59:01,434 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:59:01,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:59:01,435 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:59:01,435 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 06:59:01,439 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:59:01,440 INFO L85 PathProgramCache]: Analyzing trace with hash -307406795, now seen corresponding path program 1 times [2023-08-26 06:59:01,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:59:01,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503242740] [2023-08-26 06:59:01,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:01,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:59:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:01,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:59:01,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:59:01,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503242740] [2023-08-26 06:59:01,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503242740] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:59:01,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:59:01,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:59:01,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443328163] [2023-08-26 06:59:01,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:59:01,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:59:01,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:59:01,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:59:01,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:59:01,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 193 [2023-08-26 06:59:01,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2023-08-26 06:59:01,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:59:01,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 193 [2023-08-26 06:59:01,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:59:01,700 INFO L124 PetriNetUnfolderBase]: 106/409 cut-off events. [2023-08-26 06:59:01,700 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:59:01,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 409 events. 106/409 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2218 event pairs, 84 based on Foata normal form. 0/376 useless extension candidates. Maximal degree in co-relation 612. Up to 213 conditions per place. [2023-08-26 06:59:01,704 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 24 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2023-08-26 06:59:01,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 56 transitions, 167 flow [2023-08-26 06:59:01,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:59:01,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:59:01,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2023-08-26 06:59:01,712 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6217616580310881 [2023-08-26 06:59:01,713 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 360 transitions. [2023-08-26 06:59:01,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 360 transitions. [2023-08-26 06:59:01,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:59:01,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 360 transitions. [2023-08-26 06:59:01,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2023-08-26 06:59:01,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-08-26 06:59:01,721 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-08-26 06:59:01,722 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 113 flow. Second operand 3 states and 360 transitions. [2023-08-26 06:59:01,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 56 transitions, 167 flow [2023-08-26 06:59:01,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 56 transitions, 166 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:59:01,725 INFO L231 Difference]: Finished difference. Result has 58 places, 56 transitions, 124 flow [2023-08-26 06:59:01,726 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=58, PETRI_TRANSITIONS=56} [2023-08-26 06:59:01,728 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 2 predicate places. [2023-08-26 06:59:01,728 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 56 transitions, 124 flow [2023-08-26 06:59:01,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2023-08-26 06:59:01,729 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:59:01,729 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:59:01,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 06:59:01,729 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 06:59:01,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:59:01,729 INFO L85 PathProgramCache]: Analyzing trace with hash -196145994, now seen corresponding path program 1 times [2023-08-26 06:59:01,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:59:01,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181134017] [2023-08-26 06:59:01,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:01,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:59:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:01,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:59:01,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:59:01,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181134017] [2023-08-26 06:59:01,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181134017] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:59:01,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66028827] [2023-08-26 06:59:01,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:01,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:59:01,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:59:01,792 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) [2023-08-26 06:59:01,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 06:59:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:01,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 06:59:01,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:59:01,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:59:01,878 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 06:59:01,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:59:01,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66028827] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 06:59:01,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 06:59:01,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-26 06:59:01,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51115147] [2023-08-26 06:59:01,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 06:59:01,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 06:59:01,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:59:01,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 06:59:01,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-26 06:59:01,895 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 193 [2023-08-26 06:59:01,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 56 transitions, 124 flow. Second operand has 7 states, 7 states have (on average 112.71428571428571) internal successors, (789), 7 states have internal predecessors, (789), 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) [2023-08-26 06:59:01,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:59:01,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 193 [2023-08-26 06:59:01,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:59:01,986 INFO L124 PetriNetUnfolderBase]: 106/412 cut-off events. [2023-08-26 06:59:01,986 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:59:01,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 642 conditions, 412 events. 106/412 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2218 event pairs, 84 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 631. Up to 213 conditions per place. [2023-08-26 06:59:01,988 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 24 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2023-08-26 06:59:01,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 59 transitions, 194 flow [2023-08-26 06:59:01,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:59:01,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:59:01,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 698 transitions. [2023-08-26 06:59:01,991 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6027633851468048 [2023-08-26 06:59:01,991 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 698 transitions. [2023-08-26 06:59:01,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 698 transitions. [2023-08-26 06:59:01,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:59:01,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 698 transitions. [2023-08-26 06:59:01,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 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) [2023-08-26 06:59:01,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-08-26 06:59:01,995 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-08-26 06:59:01,996 INFO L175 Difference]: Start difference. First operand has 58 places, 56 transitions, 124 flow. Second operand 6 states and 698 transitions. [2023-08-26 06:59:01,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 59 transitions, 194 flow [2023-08-26 06:59:01,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 59 transitions, 190 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-26 06:59:01,997 INFO L231 Difference]: Finished difference. Result has 65 places, 59 transitions, 156 flow [2023-08-26 06:59:01,997 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=156, PETRI_PLACES=65, PETRI_TRANSITIONS=59} [2023-08-26 06:59:01,998 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 9 predicate places. [2023-08-26 06:59:01,998 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 59 transitions, 156 flow [2023-08-26 06:59:01,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 112.71428571428571) internal successors, (789), 7 states have internal predecessors, (789), 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) [2023-08-26 06:59:01,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:59:01,998 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:59:02,005 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-26 06:59:02,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:59:02,203 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 06:59:02,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:59:02,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1656156277, now seen corresponding path program 2 times [2023-08-26 06:59:02,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:59:02,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656348288] [2023-08-26 06:59:02,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:02,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:59:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:02,344 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:59:02,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:59:02,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656348288] [2023-08-26 06:59:02,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656348288] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:59:02,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488097399] [2023-08-26 06:59:02,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 06:59:02,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:59:02,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:59:02,346 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) [2023-08-26 06:59:02,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-26 06:59:02,453 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 06:59:02,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 06:59:02,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-26 06:59:02,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:59:02,478 INFO L351 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 [2023-08-26 06:59:02,493 INFO L351 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 [2023-08-26 06:59:02,514 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 06:59:02,515 INFO L351 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 [2023-08-26 06:59:02,547 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 06:59:02,547 INFO L351 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 [2023-08-26 06:59:02,566 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 06:59:02,566 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 06:59:02,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488097399] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:59:02,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-26 06:59:02,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2023-08-26 06:59:02,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796758484] [2023-08-26 06:59:02,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:59:02,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:59:02,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:59:02,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:59:02,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-08-26 06:59:02,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 193 [2023-08-26 06:59:02,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2023-08-26 06:59:02,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:59:02,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 193 [2023-08-26 06:59:02,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:59:02,833 INFO L124 PetriNetUnfolderBase]: 697/1398 cut-off events. [2023-08-26 06:59:02,833 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 06:59:02,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2823 conditions, 1398 events. 697/1398 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 6835 event pairs, 438 based on Foata normal form. 0/1192 useless extension candidates. Maximal degree in co-relation 2790. Up to 1190 conditions per place. [2023-08-26 06:59:02,840 INFO L140 encePairwiseOnDemand]: 182/193 looper letters, 115 selfloop transitions, 22 changer transitions 0/137 dead transitions. [2023-08-26 06:59:02,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 137 transitions, 586 flow [2023-08-26 06:59:02,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:59:02,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:59:02,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 596 transitions. [2023-08-26 06:59:02,842 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5146804835924007 [2023-08-26 06:59:02,842 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 596 transitions. [2023-08-26 06:59:02,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 596 transitions. [2023-08-26 06:59:02,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:59:02,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 596 transitions. [2023-08-26 06:59:02,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.33333333333333) internal successors, (596), 6 states have internal predecessors, (596), 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) [2023-08-26 06:59:02,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-08-26 06:59:02,845 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-08-26 06:59:02,845 INFO L175 Difference]: Start difference. First operand has 65 places, 59 transitions, 156 flow. Second operand 6 states and 596 transitions. [2023-08-26 06:59:02,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 137 transitions, 586 flow [2023-08-26 06:59:02,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 137 transitions, 572 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-26 06:59:02,848 INFO L231 Difference]: Finished difference. Result has 74 places, 80 transitions, 292 flow [2023-08-26 06:59:02,848 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=292, PETRI_PLACES=74, PETRI_TRANSITIONS=80} [2023-08-26 06:59:02,849 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 18 predicate places. [2023-08-26 06:59:02,849 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 80 transitions, 292 flow [2023-08-26 06:59:02,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2023-08-26 06:59:02,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:59:02,849 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:59:02,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-26 06:59:03,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-08-26 06:59:03,056 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 06:59:03,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:59:03,056 INFO L85 PathProgramCache]: Analyzing trace with hash 2126752866, now seen corresponding path program 1 times [2023-08-26 06:59:03,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:59:03,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071503761] [2023-08-26 06:59:03,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:03,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:59:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:03,086 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 06:59:03,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:59:03,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071503761] [2023-08-26 06:59:03,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071503761] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:59:03,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:59:03,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 06:59:03,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122074844] [2023-08-26 06:59:03,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:59:03,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:59:03,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:59:03,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:59:03,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:59:03,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 193 [2023-08-26 06:59:03,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 80 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2023-08-26 06:59:03,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:59:03,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 193 [2023-08-26 06:59:03,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:59:03,175 INFO L124 PetriNetUnfolderBase]: 271/933 cut-off events. [2023-08-26 06:59:03,175 INFO L125 PetriNetUnfolderBase]: For 97/101 co-relation queries the response was YES. [2023-08-26 06:59:03,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1881 conditions, 933 events. 271/933 cut-off events. For 97/101 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 5556 event pairs, 106 based on Foata normal form. 0/876 useless extension candidates. Maximal degree in co-relation 1850. Up to 285 conditions per place. [2023-08-26 06:59:03,178 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 43 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2023-08-26 06:59:03,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 95 transitions, 418 flow [2023-08-26 06:59:03,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:59:03,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:59:03,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2023-08-26 06:59:03,180 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6442141623488774 [2023-08-26 06:59:03,180 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2023-08-26 06:59:03,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2023-08-26 06:59:03,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:59:03,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2023-08-26 06:59:03,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2023-08-26 06:59:03,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-08-26 06:59:03,182 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-08-26 06:59:03,182 INFO L175 Difference]: Start difference. First operand has 74 places, 80 transitions, 292 flow. Second operand 3 states and 373 transitions. [2023-08-26 06:59:03,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 95 transitions, 418 flow [2023-08-26 06:59:03,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 95 transitions, 418 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 06:59:03,192 INFO L231 Difference]: Finished difference. Result has 77 places, 81 transitions, 304 flow [2023-08-26 06:59:03,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=304, PETRI_PLACES=77, PETRI_TRANSITIONS=81} [2023-08-26 06:59:03,193 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 21 predicate places. [2023-08-26 06:59:03,193 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 81 transitions, 304 flow [2023-08-26 06:59:03,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2023-08-26 06:59:03,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:59:03,198 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:59:03,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 06:59:03,198 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 06:59:03,199 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:59:03,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1507803411, now seen corresponding path program 1 times [2023-08-26 06:59:03,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:59:03,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803085341] [2023-08-26 06:59:03,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:03,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:59:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:03,282 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:59:03,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:59:03,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803085341] [2023-08-26 06:59:03,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803085341] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:59:03,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858074759] [2023-08-26 06:59:03,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:03,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:59:03,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:59:03,285 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) [2023-08-26 06:59:03,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-26 06:59:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:03,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-26 06:59:03,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:59:03,360 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:59:03,360 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 06:59:03,395 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:59:03,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858074759] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 06:59:03,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 06:59:03,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-26 06:59:03,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130632736] [2023-08-26 06:59:03,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 06:59:03,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-26 06:59:03,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:59:03,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-26 06:59:03,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-26 06:59:03,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 193 [2023-08-26 06:59:03,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 81 transitions, 304 flow. Second operand has 13 states, 13 states have (on average 112.38461538461539) internal successors, (1461), 13 states have internal predecessors, (1461), 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) [2023-08-26 06:59:03,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:59:03,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 193 [2023-08-26 06:59:03,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:59:03,498 INFO L124 PetriNetUnfolderBase]: 274/978 cut-off events. [2023-08-26 06:59:03,499 INFO L125 PetriNetUnfolderBase]: For 155/165 co-relation queries the response was YES. [2023-08-26 06:59:03,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1981 conditions, 978 events. 274/978 cut-off events. For 155/165 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 5846 event pairs, 148 based on Foata normal form. 6/944 useless extension candidates. Maximal degree in co-relation 1924. Up to 459 conditions per place. [2023-08-26 06:59:03,503 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 26 selfloop transitions, 11 changer transitions 0/87 dead transitions. [2023-08-26 06:59:03,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 87 transitions, 414 flow [2023-08-26 06:59:03,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 06:59:03,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 06:59:03,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1373 transitions. [2023-08-26 06:59:03,505 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.592832469775475 [2023-08-26 06:59:03,505 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1373 transitions. [2023-08-26 06:59:03,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1373 transitions. [2023-08-26 06:59:03,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:59:03,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1373 transitions. [2023-08-26 06:59:03,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 114.41666666666667) internal successors, (1373), 12 states have internal predecessors, (1373), 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) [2023-08-26 06:59:03,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 193.0) internal successors, (2509), 13 states have internal predecessors, (2509), 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) [2023-08-26 06:59:03,511 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 193.0) internal successors, (2509), 13 states have internal predecessors, (2509), 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) [2023-08-26 06:59:03,511 INFO L175 Difference]: Start difference. First operand has 77 places, 81 transitions, 304 flow. Second operand 12 states and 1373 transitions. [2023-08-26 06:59:03,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 87 transitions, 414 flow [2023-08-26 06:59:03,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 87 transitions, 412 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:59:03,515 INFO L231 Difference]: Finished difference. Result has 93 places, 87 transitions, 386 flow [2023-08-26 06:59:03,515 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=386, PETRI_PLACES=93, PETRI_TRANSITIONS=87} [2023-08-26 06:59:03,517 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 37 predicate places. [2023-08-26 06:59:03,517 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 87 transitions, 386 flow [2023-08-26 06:59:03,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.38461538461539) internal successors, (1461), 13 states have internal predecessors, (1461), 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) [2023-08-26 06:59:03,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:59:03,518 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:59:03,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-26 06:59:03,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:59:03,722 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 06:59:03,722 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:59:03,723 INFO L85 PathProgramCache]: Analyzing trace with hash -921228941, now seen corresponding path program 2 times [2023-08-26 06:59:03,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:59:03,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075938435] [2023-08-26 06:59:03,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:03,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:59:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:03,973 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:03,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:59:03,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075938435] [2023-08-26 06:59:03,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075938435] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:59:03,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:59:03,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:59:03,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059033907] [2023-08-26 06:59:03,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:59:03,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:59:03,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:59:03,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:59:03,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:59:03,976 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 193 [2023-08-26 06:59:03,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 87 transitions, 386 flow. Second operand has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2023-08-26 06:59:03,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:59:03,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 193 [2023-08-26 06:59:03,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:59:04,390 INFO L124 PetriNetUnfolderBase]: 1284/2578 cut-off events. [2023-08-26 06:59:04,390 INFO L125 PetriNetUnfolderBase]: For 738/738 co-relation queries the response was YES. [2023-08-26 06:59:04,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6324 conditions, 2578 events. 1284/2578 cut-off events. For 738/738 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 14122 event pairs, 479 based on Foata normal form. 0/2323 useless extension candidates. Maximal degree in co-relation 6243. Up to 1894 conditions per place. [2023-08-26 06:59:04,402 INFO L140 encePairwiseOnDemand]: 178/193 looper letters, 207 selfloop transitions, 46 changer transitions 0/253 dead transitions. [2023-08-26 06:59:04,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 253 transitions, 1418 flow [2023-08-26 06:59:04,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:59:04,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:59:04,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 656 transitions. [2023-08-26 06:59:04,404 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5664939550949913 [2023-08-26 06:59:04,404 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 656 transitions. [2023-08-26 06:59:04,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 656 transitions. [2023-08-26 06:59:04,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:59:04,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 656 transitions. [2023-08-26 06:59:04,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 109.33333333333333) internal successors, (656), 6 states have internal predecessors, (656), 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) [2023-08-26 06:59:04,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-08-26 06:59:04,406 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-08-26 06:59:04,406 INFO L175 Difference]: Start difference. First operand has 93 places, 87 transitions, 386 flow. Second operand 6 states and 656 transitions. [2023-08-26 06:59:04,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 253 transitions, 1418 flow [2023-08-26 06:59:04,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 253 transitions, 1370 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-26 06:59:04,412 INFO L231 Difference]: Finished difference. Result has 98 places, 132 transitions, 692 flow [2023-08-26 06:59:04,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=692, PETRI_PLACES=98, PETRI_TRANSITIONS=132} [2023-08-26 06:59:04,413 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 42 predicate places. [2023-08-26 06:59:04,413 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 132 transitions, 692 flow [2023-08-26 06:59:04,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2023-08-26 06:59:04,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:59:04,413 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:59:04,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 06:59:04,413 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 06:59:04,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:59:04,414 INFO L85 PathProgramCache]: Analyzing trace with hash -864941956, now seen corresponding path program 1 times [2023-08-26 06:59:04,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:59:04,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130746298] [2023-08-26 06:59:04,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:04,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:59:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:04,652 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:04,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:59:04,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130746298] [2023-08-26 06:59:04,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130746298] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:59:04,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:59:04,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:59:04,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873303686] [2023-08-26 06:59:04,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:59:04,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:59:04,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:59:04,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:59:04,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:59:04,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 193 [2023-08-26 06:59:04,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 132 transitions, 692 flow. Second operand has 6 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 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) [2023-08-26 06:59:04,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:59:04,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 193 [2023-08-26 06:59:04,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:59:05,082 INFO L124 PetriNetUnfolderBase]: 1468/2946 cut-off events. [2023-08-26 06:59:05,082 INFO L125 PetriNetUnfolderBase]: For 2067/2067 co-relation queries the response was YES. [2023-08-26 06:59:05,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8689 conditions, 2946 events. 1468/2946 cut-off events. For 2067/2067 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 16313 event pairs, 593 based on Foata normal form. 0/2710 useless extension candidates. Maximal degree in co-relation 8628. Up to 2556 conditions per place. [2023-08-26 06:59:05,097 INFO L140 encePairwiseOnDemand]: 178/193 looper letters, 163 selfloop transitions, 58 changer transitions 0/221 dead transitions. [2023-08-26 06:59:05,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 221 transitions, 1476 flow [2023-08-26 06:59:05,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:59:05,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:59:05,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 583 transitions. [2023-08-26 06:59:05,099 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5034542314335061 [2023-08-26 06:59:05,099 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 583 transitions. [2023-08-26 06:59:05,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 583 transitions. [2023-08-26 06:59:05,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:59:05,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 583 transitions. [2023-08-26 06:59:05,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.16666666666667) internal successors, (583), 6 states have internal predecessors, (583), 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) [2023-08-26 06:59:05,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-08-26 06:59:05,101 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-08-26 06:59:05,102 INFO L175 Difference]: Start difference. First operand has 98 places, 132 transitions, 692 flow. Second operand 6 states and 583 transitions. [2023-08-26 06:59:05,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 221 transitions, 1476 flow [2023-08-26 06:59:05,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 221 transitions, 1476 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 06:59:05,110 INFO L231 Difference]: Finished difference. Result has 108 places, 180 transitions, 1202 flow [2023-08-26 06:59:05,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1202, PETRI_PLACES=108, PETRI_TRANSITIONS=180} [2023-08-26 06:59:05,111 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 52 predicate places. [2023-08-26 06:59:05,111 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 180 transitions, 1202 flow [2023-08-26 06:59:05,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 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) [2023-08-26 06:59:05,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:59:05,112 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:59:05,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 06:59:05,112 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 06:59:05,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:59:05,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1258989738, now seen corresponding path program 1 times [2023-08-26 06:59:05,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:59:05,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163590189] [2023-08-26 06:59:05,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:05,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:59:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:05,313 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:05,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:59:05,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163590189] [2023-08-26 06:59:05,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163590189] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:59:05,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:59:05,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:59:05,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971933455] [2023-08-26 06:59:05,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:59:05,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:59:05,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:59:05,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:59:05,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:59:05,324 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 193 [2023-08-26 06:59:05,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 180 transitions, 1202 flow. Second operand has 6 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 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) [2023-08-26 06:59:05,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:59:05,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 193 [2023-08-26 06:59:05,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:59:05,802 INFO L124 PetriNetUnfolderBase]: 1715/3440 cut-off events. [2023-08-26 06:59:05,802 INFO L125 PetriNetUnfolderBase]: For 4555/4555 co-relation queries the response was YES. [2023-08-26 06:59:05,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11874 conditions, 3440 events. 1715/3440 cut-off events. For 4555/4555 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 19972 event pairs, 521 based on Foata normal form. 0/3244 useless extension candidates. Maximal degree in co-relation 11808. Up to 2891 conditions per place. [2023-08-26 06:59:05,821 INFO L140 encePairwiseOnDemand]: 170/193 looper letters, 236 selfloop transitions, 103 changer transitions 8/347 dead transitions. [2023-08-26 06:59:05,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 347 transitions, 2642 flow [2023-08-26 06:59:05,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:59:05,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:59:05,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 643 transitions. [2023-08-26 06:59:05,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5552677029360967 [2023-08-26 06:59:05,823 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 643 transitions. [2023-08-26 06:59:05,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 643 transitions. [2023-08-26 06:59:05,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:59:05,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 643 transitions. [2023-08-26 06:59:05,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 107.16666666666667) internal successors, (643), 6 states have internal predecessors, (643), 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) [2023-08-26 06:59:05,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-08-26 06:59:05,825 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-08-26 06:59:05,825 INFO L175 Difference]: Start difference. First operand has 108 places, 180 transitions, 1202 flow. Second operand 6 states and 643 transitions. [2023-08-26 06:59:05,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 347 transitions, 2642 flow [2023-08-26 06:59:05,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 347 transitions, 2578 flow, removed 32 selfloop flow, removed 0 redundant places. [2023-08-26 06:59:05,841 INFO L231 Difference]: Finished difference. Result has 118 places, 265 transitions, 2054 flow [2023-08-26 06:59:05,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2054, PETRI_PLACES=118, PETRI_TRANSITIONS=265} [2023-08-26 06:59:05,842 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 62 predicate places. [2023-08-26 06:59:05,842 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 265 transitions, 2054 flow [2023-08-26 06:59:05,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 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) [2023-08-26 06:59:05,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:59:05,842 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:59:05,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 06:59:05,842 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 06:59:05,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:59:05,843 INFO L85 PathProgramCache]: Analyzing trace with hash 205448697, now seen corresponding path program 1 times [2023-08-26 06:59:05,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:59:05,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124077557] [2023-08-26 06:59:05,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:05,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:59:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:06,147 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 06:59:06,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:59:06,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124077557] [2023-08-26 06:59:06,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124077557] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:59:06,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011667739] [2023-08-26 06:59:06,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:06,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:59:06,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:59:06,149 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) [2023-08-26 06:59:06,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-26 06:59:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:06,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-26 06:59:06,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:59:06,291 INFO L351 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 [2023-08-26 06:59:06,307 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:06,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 06:59:06,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011667739] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:59:06,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-26 06:59:06,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-26 06:59:06,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693913828] [2023-08-26 06:59:06,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:59:06,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:59:06,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:59:06,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:59:06,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-26 06:59:06,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 193 [2023-08-26 06:59:06,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 265 transitions, 2054 flow. Second operand has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 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) [2023-08-26 06:59:06,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:59:06,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 193 [2023-08-26 06:59:06,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:59:06,682 INFO L124 PetriNetUnfolderBase]: 1309/3130 cut-off events. [2023-08-26 06:59:06,682 INFO L125 PetriNetUnfolderBase]: For 6458/6596 co-relation queries the response was YES. [2023-08-26 06:59:06,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11731 conditions, 3130 events. 1309/3130 cut-off events. For 6458/6596 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 21178 event pairs, 214 based on Foata normal form. 18/3024 useless extension candidates. Maximal degree in co-relation 11660. Up to 1056 conditions per place. [2023-08-26 06:59:06,702 INFO L140 encePairwiseOnDemand]: 185/193 looper letters, 174 selfloop transitions, 12 changer transitions 0/334 dead transitions. [2023-08-26 06:59:06,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 334 transitions, 3030 flow [2023-08-26 06:59:06,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:59:06,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:59:06,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 556 transitions. [2023-08-26 06:59:06,704 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48013816925734026 [2023-08-26 06:59:06,704 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 556 transitions. [2023-08-26 06:59:06,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 556 transitions. [2023-08-26 06:59:06,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:59:06,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 556 transitions. [2023-08-26 06:59:06,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 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) [2023-08-26 06:59:06,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-08-26 06:59:06,717 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-08-26 06:59:06,717 INFO L175 Difference]: Start difference. First operand has 118 places, 265 transitions, 2054 flow. Second operand 6 states and 556 transitions. [2023-08-26 06:59:06,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 334 transitions, 3030 flow [2023-08-26 06:59:06,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 334 transitions, 2884 flow, removed 73 selfloop flow, removed 0 redundant places. [2023-08-26 06:59:06,744 INFO L231 Difference]: Finished difference. Result has 126 places, 273 transitions, 2036 flow [2023-08-26 06:59:06,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=1940, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2036, PETRI_PLACES=126, PETRI_TRANSITIONS=273} [2023-08-26 06:59:06,746 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 70 predicate places. [2023-08-26 06:59:06,746 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 273 transitions, 2036 flow [2023-08-26 06:59:06,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 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) [2023-08-26 06:59:06,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:59:06,746 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:59:06,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-26 06:59:06,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:59:06,952 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 06:59:06,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:59:06,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1600309825, now seen corresponding path program 2 times [2023-08-26 06:59:06,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:59:06,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223602169] [2023-08-26 06:59:06,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:06,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:59:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:07,320 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 06:59:07,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:59:07,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223602169] [2023-08-26 06:59:07,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223602169] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:59:07,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427880846] [2023-08-26 06:59:07,321 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 06:59:07,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:59:07,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:59:07,322 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) [2023-08-26 06:59:07,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-26 06:59:07,401 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 06:59:07,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 06:59:07,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-26 06:59:07,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:59:07,431 INFO L351 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 [2023-08-26 06:59:07,465 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:07,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 06:59:07,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427880846] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:59:07,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-26 06:59:07,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-26 06:59:07,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877059749] [2023-08-26 06:59:07,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:59:07,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:59:07,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:59:07,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:59:07,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-08-26 06:59:07,467 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 193 [2023-08-26 06:59:07,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 273 transitions, 2036 flow. Second operand has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 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) [2023-08-26 06:59:07,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:59:07,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 193 [2023-08-26 06:59:07,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:59:08,195 INFO L124 PetriNetUnfolderBase]: 2657/6345 cut-off events. [2023-08-26 06:59:08,195 INFO L125 PetriNetUnfolderBase]: For 13313/13583 co-relation queries the response was YES. [2023-08-26 06:59:08,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24628 conditions, 6345 events. 2657/6345 cut-off events. For 13313/13583 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 48804 event pairs, 330 based on Foata normal form. 18/6147 useless extension candidates. Maximal degree in co-relation 24552. Up to 1531 conditions per place. [2023-08-26 06:59:08,286 INFO L140 encePairwiseOnDemand]: 185/193 looper letters, 304 selfloop transitions, 19 changer transitions 0/471 dead transitions. [2023-08-26 06:59:08,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 471 transitions, 3972 flow [2023-08-26 06:59:08,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:59:08,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:59:08,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 585 transitions. [2023-08-26 06:59:08,287 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5051813471502591 [2023-08-26 06:59:08,288 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 585 transitions. [2023-08-26 06:59:08,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 585 transitions. [2023-08-26 06:59:08,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:59:08,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 585 transitions. [2023-08-26 06:59:08,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 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) [2023-08-26 06:59:08,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-08-26 06:59:08,291 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-08-26 06:59:08,291 INFO L175 Difference]: Start difference. First operand has 126 places, 273 transitions, 2036 flow. Second operand 6 states and 585 transitions. [2023-08-26 06:59:08,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 471 transitions, 3972 flow [2023-08-26 06:59:08,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 471 transitions, 3946 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 06:59:08,326 INFO L231 Difference]: Finished difference. Result has 131 places, 285 transitions, 2195 flow [2023-08-26 06:59:08,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=2022, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2195, PETRI_PLACES=131, PETRI_TRANSITIONS=285} [2023-08-26 06:59:08,326 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 75 predicate places. [2023-08-26 06:59:08,326 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 285 transitions, 2195 flow [2023-08-26 06:59:08,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 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) [2023-08-26 06:59:08,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:59:08,327 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:59:08,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-08-26 06:59:08,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-08-26 06:59:08,534 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 06:59:08,534 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:59:08,534 INFO L85 PathProgramCache]: Analyzing trace with hash -648742066, now seen corresponding path program 1 times [2023-08-26 06:59:08,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:59:08,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152973971] [2023-08-26 06:59:08,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:08,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:59:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:08,830 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 06:59:08,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:59:08,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152973971] [2023-08-26 06:59:08,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152973971] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:59:08,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650963055] [2023-08-26 06:59:08,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:08,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:59:08,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:59:08,831 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) [2023-08-26 06:59:08,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-26 06:59:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:08,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-26 06:59:08,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:59:08,959 INFO L351 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 [2023-08-26 06:59:08,991 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:08,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 06:59:08,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650963055] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:59:08,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-26 06:59:08,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-26 06:59:08,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144471762] [2023-08-26 06:59:08,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:59:08,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:59:08,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:59:08,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:59:08,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-26 06:59:08,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 193 [2023-08-26 06:59:08,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 285 transitions, 2195 flow. Second operand has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 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) [2023-08-26 06:59:08,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:59:08,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 193 [2023-08-26 06:59:08,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:59:09,661 INFO L124 PetriNetUnfolderBase]: 2359/5714 cut-off events. [2023-08-26 06:59:09,661 INFO L125 PetriNetUnfolderBase]: For 13239/13468 co-relation queries the response was YES. [2023-08-26 06:59:09,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22969 conditions, 5714 events. 2359/5714 cut-off events. For 13239/13468 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 43648 event pairs, 297 based on Foata normal form. 21/5530 useless extension candidates. Maximal degree in co-relation 22890. Up to 1492 conditions per place. [2023-08-26 06:59:09,695 INFO L140 encePairwiseOnDemand]: 186/193 looper letters, 306 selfloop transitions, 22 changer transitions 0/476 dead transitions. [2023-08-26 06:59:09,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 476 transitions, 4082 flow [2023-08-26 06:59:09,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 06:59:09,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 06:59:09,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 673 transitions. [2023-08-26 06:59:09,697 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4981495188749075 [2023-08-26 06:59:09,697 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 673 transitions. [2023-08-26 06:59:09,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 673 transitions. [2023-08-26 06:59:09,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:59:09,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 673 transitions. [2023-08-26 06:59:09,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 96.14285714285714) internal successors, (673), 7 states have internal predecessors, (673), 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) [2023-08-26 06:59:09,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 193.0) internal successors, (1544), 8 states have internal predecessors, (1544), 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) [2023-08-26 06:59:09,700 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 193.0) internal successors, (1544), 8 states have internal predecessors, (1544), 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) [2023-08-26 06:59:09,700 INFO L175 Difference]: Start difference. First operand has 131 places, 285 transitions, 2195 flow. Second operand 7 states and 673 transitions. [2023-08-26 06:59:09,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 476 transitions, 4082 flow [2023-08-26 06:59:09,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 476 transitions, 4079 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-26 06:59:09,738 INFO L231 Difference]: Finished difference. Result has 139 places, 288 transitions, 2288 flow [2023-08-26 06:59:09,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=2168, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2288, PETRI_PLACES=139, PETRI_TRANSITIONS=288} [2023-08-26 06:59:09,739 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 83 predicate places. [2023-08-26 06:59:09,739 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 288 transitions, 2288 flow [2023-08-26 06:59:09,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 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) [2023-08-26 06:59:09,739 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:59:09,739 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:59:09,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-08-26 06:59:09,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:59:09,944 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 06:59:09,944 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:59:09,944 INFO L85 PathProgramCache]: Analyzing trace with hash -399232869, now seen corresponding path program 3 times [2023-08-26 06:59:09,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:59:09,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792048518] [2023-08-26 06:59:09,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:09,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:59:09,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:10,222 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 06:59:10,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:59:10,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792048518] [2023-08-26 06:59:10,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792048518] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:59:10,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886434134] [2023-08-26 06:59:10,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-26 06:59:10,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:59:10,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:59:10,223 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) [2023-08-26 06:59:10,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-26 06:59:10,310 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-08-26 06:59:10,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 06:59:10,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-26 06:59:10,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:59:10,340 INFO L351 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 [2023-08-26 06:59:10,367 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:10,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 06:59:10,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886434134] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:59:10,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-26 06:59:10,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-26 06:59:10,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561114667] [2023-08-26 06:59:10,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:59:10,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:59:10,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:59:10,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:59:10,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-26 06:59:10,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 193 [2023-08-26 06:59:10,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 288 transitions, 2288 flow. Second operand has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 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) [2023-08-26 06:59:10,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:59:10,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 193 [2023-08-26 06:59:10,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:59:11,009 INFO L124 PetriNetUnfolderBase]: 2387/5685 cut-off events. [2023-08-26 06:59:11,009 INFO L125 PetriNetUnfolderBase]: For 14789/15044 co-relation queries the response was YES. [2023-08-26 06:59:11,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23094 conditions, 5685 events. 2387/5685 cut-off events. For 14789/15044 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 43807 event pairs, 449 based on Foata normal form. 29/5479 useless extension candidates. Maximal degree in co-relation 23011. Up to 2445 conditions per place. [2023-08-26 06:59:11,040 INFO L140 encePairwiseOnDemand]: 186/193 looper letters, 188 selfloop transitions, 17 changer transitions 0/353 dead transitions. [2023-08-26 06:59:11,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 353 transitions, 3287 flow [2023-08-26 06:59:11,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:59:11,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:59:11,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 554 transitions. [2023-08-26 06:59:11,041 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4784110535405872 [2023-08-26 06:59:11,041 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 554 transitions. [2023-08-26 06:59:11,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 554 transitions. [2023-08-26 06:59:11,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:59:11,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 554 transitions. [2023-08-26 06:59:11,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.33333333333333) internal successors, (554), 6 states have internal predecessors, (554), 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) [2023-08-26 06:59:11,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-08-26 06:59:11,044 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-08-26 06:59:11,044 INFO L175 Difference]: Start difference. First operand has 139 places, 288 transitions, 2288 flow. Second operand 6 states and 554 transitions. [2023-08-26 06:59:11,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 353 transitions, 3287 flow [2023-08-26 06:59:11,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 353 transitions, 3247 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-26 06:59:11,075 INFO L231 Difference]: Finished difference. Result has 143 places, 291 transitions, 2335 flow [2023-08-26 06:59:11,075 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=2209, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2335, PETRI_PLACES=143, PETRI_TRANSITIONS=291} [2023-08-26 06:59:11,076 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 87 predicate places. [2023-08-26 06:59:11,076 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 291 transitions, 2335 flow [2023-08-26 06:59:11,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 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) [2023-08-26 06:59:11,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:59:11,076 INFO L208 CegarLoopForPetriNet]: trace histogram [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] [2023-08-26 06:59:11,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-26 06:59:11,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:59:11,281 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 06:59:11,281 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:59:11,281 INFO L85 PathProgramCache]: Analyzing trace with hash -167655919, now seen corresponding path program 1 times [2023-08-26 06:59:11,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:59:11,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934781772] [2023-08-26 06:59:11,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:11,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:59:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:11,321 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:11,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:59:11,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934781772] [2023-08-26 06:59:11,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934781772] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:59:11,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80015709] [2023-08-26 06:59:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:11,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:59:11,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:59:11,323 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) [2023-08-26 06:59:11,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-26 06:59:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:11,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 06:59:11,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:59:11,440 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:11,440 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 06:59:11,458 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:11,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80015709] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 06:59:11,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 06:59:11,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-08-26 06:59:11,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034008463] [2023-08-26 06:59:11,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 06:59:11,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 06:59:11,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:59:11,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 06:59:11,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-26 06:59:11,460 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 193 [2023-08-26 06:59:11,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 291 transitions, 2335 flow. Second operand has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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) [2023-08-26 06:59:11,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:59:11,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 193 [2023-08-26 06:59:11,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:59:12,646 INFO L124 PetriNetUnfolderBase]: 3942/9649 cut-off events. [2023-08-26 06:59:12,646 INFO L125 PetriNetUnfolderBase]: For 27954/28308 co-relation queries the response was YES. [2023-08-26 06:59:12,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39815 conditions, 9649 events. 3942/9649 cut-off events. For 27954/28308 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 73687 event pairs, 412 based on Foata normal form. 125/9597 useless extension candidates. Maximal degree in co-relation 39730. Up to 2067 conditions per place. [2023-08-26 06:59:12,702 INFO L140 encePairwiseOnDemand]: 189/193 looper letters, 195 selfloop transitions, 23 changer transitions 0/424 dead transitions. [2023-08-26 06:59:12,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 424 transitions, 4057 flow [2023-08-26 06:59:12,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:59:12,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:59:12,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 745 transitions. [2023-08-26 06:59:12,704 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6433506044905009 [2023-08-26 06:59:12,704 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 745 transitions. [2023-08-26 06:59:12,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 745 transitions. [2023-08-26 06:59:12,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:59:12,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 745 transitions. [2023-08-26 06:59:12,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 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) [2023-08-26 06:59:12,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-08-26 06:59:12,707 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2023-08-26 06:59:12,707 INFO L175 Difference]: Start difference. First operand has 143 places, 291 transitions, 2335 flow. Second operand 6 states and 745 transitions. [2023-08-26 06:59:12,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 424 transitions, 4057 flow [2023-08-26 06:59:12,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 424 transitions, 4029 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-08-26 06:59:12,762 INFO L231 Difference]: Finished difference. Result has 150 places, 300 transitions, 2501 flow [2023-08-26 06:59:12,762 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=2313, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2501, PETRI_PLACES=150, PETRI_TRANSITIONS=300} [2023-08-26 06:59:12,762 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 94 predicate places. [2023-08-26 06:59:12,762 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 300 transitions, 2501 flow [2023-08-26 06:59:12,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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) [2023-08-26 06:59:12,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:59:12,763 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:59:12,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-08-26 06:59:12,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-08-26 06:59:12,968 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 06:59:12,968 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:59:12,968 INFO L85 PathProgramCache]: Analyzing trace with hash 24325413, now seen corresponding path program 1 times [2023-08-26 06:59:12,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:59:12,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839786126] [2023-08-26 06:59:12,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:12,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:59:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:13,799 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:13,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:59:13,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839786126] [2023-08-26 06:59:13,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839786126] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:59:13,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056290287] [2023-08-26 06:59:13,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:13,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:59:13,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:59:13,800 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) [2023-08-26 06:59:13,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-26 06:59:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:13,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 54 conjunts are in the unsatisfiable core [2023-08-26 06:59:13,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:59:14,067 INFO L351 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 [2023-08-26 06:59:14,093 INFO L351 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 21 treesize of output 20 [2023-08-26 06:59:14,129 INFO L351 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 0 case distinctions, treesize of input 30 treesize of output 32 [2023-08-26 06:59:14,171 INFO L351 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 0 case distinctions, treesize of input 39 treesize of output 44 [2023-08-26 06:59:14,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,325 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-26 06:59:14,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,370 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-26 06:59:14,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,390 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-26 06:59:14,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,416 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-26 06:59:14,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:14,457 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-26 06:59:14,482 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:14,482 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 06:59:15,764 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:15,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056290287] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 06:59:15,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 06:59:15,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 31 [2023-08-26 06:59:15,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965026526] [2023-08-26 06:59:15,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 06:59:15,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-26 06:59:15,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:59:15,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-26 06:59:15,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=794, Unknown=0, NotChecked=0, Total=992 [2023-08-26 06:59:15,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 193 [2023-08-26 06:59:15,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 300 transitions, 2501 flow. Second operand has 32 states, 32 states have (on average 52.21875) internal successors, (1671), 32 states have internal predecessors, (1671), 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) [2023-08-26 06:59:15,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:59:15,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 193 [2023-08-26 06:59:15,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:59:21,605 INFO L124 PetriNetUnfolderBase]: 7038/14177 cut-off events. [2023-08-26 06:59:21,606 INFO L125 PetriNetUnfolderBase]: For 47074/47074 co-relation queries the response was YES. [2023-08-26 06:59:21,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65914 conditions, 14177 events. 7038/14177 cut-off events. For 47074/47074 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 98111 event pairs, 788 based on Foata normal form. 14/13778 useless extension candidates. Maximal degree in co-relation 65827. Up to 5763 conditions per place. [2023-08-26 06:59:21,676 INFO L140 encePairwiseOnDemand]: 171/193 looper letters, 751 selfloop transitions, 120 changer transitions 14/885 dead transitions. [2023-08-26 06:59:21,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 885 transitions, 8869 flow [2023-08-26 06:59:21,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-26 06:59:21,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-26 06:59:21,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1055 transitions. [2023-08-26 06:59:21,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39045151739452255 [2023-08-26 06:59:21,680 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1055 transitions. [2023-08-26 06:59:21,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1055 transitions. [2023-08-26 06:59:21,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:59:21,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1055 transitions. [2023-08-26 06:59:21,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 75.35714285714286) internal successors, (1055), 14 states have internal predecessors, (1055), 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) [2023-08-26 06:59:21,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 193.0) internal successors, (2895), 15 states have internal predecessors, (2895), 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) [2023-08-26 06:59:21,686 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 193.0) internal successors, (2895), 15 states have internal predecessors, (2895), 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) [2023-08-26 06:59:21,686 INFO L175 Difference]: Start difference. First operand has 150 places, 300 transitions, 2501 flow. Second operand 14 states and 1055 transitions. [2023-08-26 06:59:21,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 885 transitions, 8869 flow [2023-08-26 06:59:21,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 885 transitions, 8677 flow, removed 78 selfloop flow, removed 1 redundant places. [2023-08-26 06:59:21,781 INFO L231 Difference]: Finished difference. Result has 173 places, 396 transitions, 4022 flow [2023-08-26 06:59:21,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=2463, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4022, PETRI_PLACES=173, PETRI_TRANSITIONS=396} [2023-08-26 06:59:21,781 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 117 predicate places. [2023-08-26 06:59:21,781 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 396 transitions, 4022 flow [2023-08-26 06:59:21,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 52.21875) internal successors, (1671), 32 states have internal predecessors, (1671), 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) [2023-08-26 06:59:21,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:59:21,782 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:59:21,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-08-26 06:59:21,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-08-26 06:59:21,983 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 06:59:21,984 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:59:21,984 INFO L85 PathProgramCache]: Analyzing trace with hash 985556970, now seen corresponding path program 1 times [2023-08-26 06:59:21,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:59:21,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327868253] [2023-08-26 06:59:21,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:21,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:59:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:22,453 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:22,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:59:22,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327868253] [2023-08-26 06:59:22,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327868253] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:59:22,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404409799] [2023-08-26 06:59:22,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:22,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:59:22,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:59:22,454 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) [2023-08-26 06:59:22,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-26 06:59:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:22,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 46 conjunts are in the unsatisfiable core [2023-08-26 06:59:22,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:59:22,791 INFO L351 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 [2023-08-26 06:59:22,862 INFO L351 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 [2023-08-26 06:59:22,890 INFO L351 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 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-26 06:59:22,926 INFO L351 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-26 06:59:22,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:22,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:22,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:22,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:22,979 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-26 06:59:23,007 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:23,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 06:59:23,628 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:23,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404409799] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 06:59:23,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 06:59:23,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-26 06:59:23,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154402090] [2023-08-26 06:59:23,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 06:59:23,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-26 06:59:23,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:59:23,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-26 06:59:23,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=770, Unknown=0, NotChecked=0, Total=930 [2023-08-26 06:59:23,631 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 193 [2023-08-26 06:59:23,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 396 transitions, 4022 flow. Second operand has 31 states, 31 states have (on average 52.32258064516129) internal successors, (1622), 31 states have internal predecessors, (1622), 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) [2023-08-26 06:59:23,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:59:23,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 193 [2023-08-26 06:59:23,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:59:30,725 INFO L124 PetriNetUnfolderBase]: 10326/20765 cut-off events. [2023-08-26 06:59:30,726 INFO L125 PetriNetUnfolderBase]: For 96951/96951 co-relation queries the response was YES. [2023-08-26 06:59:30,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104145 conditions, 20765 events. 10326/20765 cut-off events. For 96951/96951 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 155366 event pairs, 1808 based on Foata normal form. 97/20601 useless extension candidates. Maximal degree in co-relation 104045. Up to 10855 conditions per place. [2023-08-26 06:59:30,877 INFO L140 encePairwiseOnDemand]: 171/193 looper letters, 1069 selfloop transitions, 168 changer transitions 14/1251 dead transitions. [2023-08-26 06:59:30,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 1251 transitions, 13871 flow [2023-08-26 06:59:30,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-26 06:59:30,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-26 06:59:30,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1249 transitions. [2023-08-26 06:59:30,882 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3806766229807985 [2023-08-26 06:59:30,882 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1249 transitions. [2023-08-26 06:59:30,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1249 transitions. [2023-08-26 06:59:30,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:59:30,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1249 transitions. [2023-08-26 06:59:30,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 73.47058823529412) internal successors, (1249), 17 states have internal predecessors, (1249), 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) [2023-08-26 06:59:30,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 193.0) internal successors, (3474), 18 states have internal predecessors, (3474), 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) [2023-08-26 06:59:30,891 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 193.0) internal successors, (3474), 18 states have internal predecessors, (3474), 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) [2023-08-26 06:59:30,891 INFO L175 Difference]: Start difference. First operand has 173 places, 396 transitions, 4022 flow. Second operand 17 states and 1249 transitions. [2023-08-26 06:59:30,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 1251 transitions, 13871 flow [2023-08-26 06:59:31,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 1251 transitions, 13808 flow, removed 28 selfloop flow, removed 2 redundant places. [2023-08-26 06:59:31,176 INFO L231 Difference]: Finished difference. Result has 199 places, 512 transitions, 6208 flow [2023-08-26 06:59:31,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=3983, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=6208, PETRI_PLACES=199, PETRI_TRANSITIONS=512} [2023-08-26 06:59:31,177 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 143 predicate places. [2023-08-26 06:59:31,177 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 512 transitions, 6208 flow [2023-08-26 06:59:31,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 52.32258064516129) internal successors, (1622), 31 states have internal predecessors, (1622), 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) [2023-08-26 06:59:31,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:59:31,178 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:59:31,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-26 06:59:31,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-08-26 06:59:31,383 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 06:59:31,383 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:59:31,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1716370128, now seen corresponding path program 1 times [2023-08-26 06:59:31,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:59:31,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001534286] [2023-08-26 06:59:31,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:31,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:59:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:31,940 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:31,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:59:31,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001534286] [2023-08-26 06:59:31,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001534286] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:59:31,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809742033] [2023-08-26 06:59:31,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:31,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:59:31,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:59:31,942 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) [2023-08-26 06:59:31,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-08-26 06:59:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:32,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 46 conjunts are in the unsatisfiable core [2023-08-26 06:59:32,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:59:32,291 INFO L351 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 [2023-08-26 06:59:32,318 INFO L351 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 [2023-08-26 06:59:32,349 INFO L351 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 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-26 06:59:32,385 INFO L351 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-26 06:59:32,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:32,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:32,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:32,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:32,438 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-26 06:59:32,466 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:32,467 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 06:59:33,097 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:33,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809742033] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 06:59:33,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 06:59:33,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-26 06:59:33,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538609328] [2023-08-26 06:59:33,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 06:59:33,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-26 06:59:33,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:59:33,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-26 06:59:33,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=770, Unknown=0, NotChecked=0, Total=930 [2023-08-26 06:59:33,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 193 [2023-08-26 06:59:33,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 512 transitions, 6208 flow. Second operand has 31 states, 31 states have (on average 50.32258064516129) internal successors, (1560), 31 states have internal predecessors, (1560), 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) [2023-08-26 06:59:33,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:59:33,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 193 [2023-08-26 06:59:33,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:59:39,848 INFO L124 PetriNetUnfolderBase]: 11317/22747 cut-off events. [2023-08-26 06:59:39,848 INFO L125 PetriNetUnfolderBase]: For 141646/141646 co-relation queries the response was YES. [2023-08-26 06:59:39,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122776 conditions, 22747 events. 11317/22747 cut-off events. For 141646/141646 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 173573 event pairs, 2149 based on Foata normal form. 52/22538 useless extension candidates. Maximal degree in co-relation 122664. Up to 11686 conditions per place. [2023-08-26 06:59:40,009 INFO L140 encePairwiseOnDemand]: 172/193 looper letters, 1013 selfloop transitions, 184 changer transitions 4/1201 dead transitions. [2023-08-26 06:59:40,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 1201 transitions, 15120 flow [2023-08-26 06:59:40,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-26 06:59:40,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-26 06:59:40,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1141 transitions. [2023-08-26 06:59:40,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3477598293203292 [2023-08-26 06:59:40,011 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1141 transitions. [2023-08-26 06:59:40,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1141 transitions. [2023-08-26 06:59:40,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:59:40,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1141 transitions. [2023-08-26 06:59:40,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 67.11764705882354) internal successors, (1141), 17 states have internal predecessors, (1141), 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) [2023-08-26 06:59:40,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 193.0) internal successors, (3474), 18 states have internal predecessors, (3474), 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) [2023-08-26 06:59:40,016 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 193.0) internal successors, (3474), 18 states have internal predecessors, (3474), 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) [2023-08-26 06:59:40,016 INFO L175 Difference]: Start difference. First operand has 199 places, 512 transitions, 6208 flow. Second operand 17 states and 1141 transitions. [2023-08-26 06:59:40,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 1201 transitions, 15120 flow [2023-08-26 06:59:40,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 1201 transitions, 15013 flow, removed 53 selfloop flow, removed 1 redundant places. [2023-08-26 06:59:40,530 INFO L231 Difference]: Finished difference. Result has 224 places, 648 transitions, 8728 flow [2023-08-26 06:59:40,530 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=6155, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=512, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=8728, PETRI_PLACES=224, PETRI_TRANSITIONS=648} [2023-08-26 06:59:40,530 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 168 predicate places. [2023-08-26 06:59:40,530 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 648 transitions, 8728 flow [2023-08-26 06:59:40,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 50.32258064516129) internal successors, (1560), 31 states have internal predecessors, (1560), 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) [2023-08-26 06:59:40,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:59:40,531 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:59:40,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-08-26 06:59:40,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-08-26 06:59:40,733 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 06:59:40,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:59:40,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1834829114, now seen corresponding path program 2 times [2023-08-26 06:59:40,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:59:40,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084415041] [2023-08-26 06:59:40,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:59:40,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:59:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:59:41,361 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:41,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:59:41,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084415041] [2023-08-26 06:59:41,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084415041] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 06:59:41,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673581911] [2023-08-26 06:59:41,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 06:59:41,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 06:59:41,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:59:41,363 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) [2023-08-26 06:59:41,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-08-26 06:59:41,499 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-26 06:59:41,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 06:59:41,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 49 conjunts are in the unsatisfiable core [2023-08-26 06:59:41,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 06:59:41,657 INFO L351 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 [2023-08-26 06:59:41,689 INFO L351 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 [2023-08-26 06:59:41,720 INFO L351 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 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-26 06:59:41,761 INFO L351 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-26 06:59:41,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,850 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-26 06:59:41,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,867 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-26 06:59:41,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,888 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-26 06:59:41,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,904 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-26 06:59:41,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 06:59:41,943 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-26 06:59:41,968 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:41,968 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 06:59:52,596 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 06:59:52,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673581911] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 06:59:52,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 06:59:52,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 31 [2023-08-26 06:59:52,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117721710] [2023-08-26 06:59:52,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 06:59:52,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-26 06:59:52,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:59:52,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-26 06:59:52,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=797, Unknown=1, NotChecked=0, Total=992 [2023-08-26 06:59:52,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 193 [2023-08-26 06:59:52,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 648 transitions, 8728 flow. Second operand has 32 states, 32 states have (on average 52.21875) internal successors, (1671), 32 states have internal predecessors, (1671), 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) [2023-08-26 06:59:52,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:59:52,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 193 [2023-08-26 06:59:52,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:00:07,422 INFO L124 PetriNetUnfolderBase]: 15481/31099 cut-off events. [2023-08-26 07:00:07,422 INFO L125 PetriNetUnfolderBase]: For 231509/231509 co-relation queries the response was YES. [2023-08-26 07:00:07,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177224 conditions, 31099 events. 15481/31099 cut-off events. For 231509/231509 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 251618 event pairs, 2429 based on Foata normal form. 74/30778 useless extension candidates. Maximal degree in co-relation 177101. Up to 11235 conditions per place. [2023-08-26 07:00:07,687 INFO L140 encePairwiseOnDemand]: 171/193 looper letters, 1230 selfloop transitions, 289 changer transitions 16/1535 dead transitions. [2023-08-26 07:00:07,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 1535 transitions, 20708 flow [2023-08-26 07:00:07,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-26 07:00:07,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-26 07:00:07,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1219 transitions. [2023-08-26 07:00:07,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3947538860103627 [2023-08-26 07:00:07,689 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1219 transitions. [2023-08-26 07:00:07,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1219 transitions. [2023-08-26 07:00:07,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:00:07,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1219 transitions. [2023-08-26 07:00:07,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 76.1875) internal successors, (1219), 16 states have internal predecessors, (1219), 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) [2023-08-26 07:00:07,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 193.0) internal successors, (3281), 17 states have internal predecessors, (3281), 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) [2023-08-26 07:00:07,693 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 193.0) internal successors, (3281), 17 states have internal predecessors, (3281), 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) [2023-08-26 07:00:07,693 INFO L175 Difference]: Start difference. First operand has 224 places, 648 transitions, 8728 flow. Second operand 16 states and 1219 transitions. [2023-08-26 07:00:07,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 1535 transitions, 20708 flow [2023-08-26 07:00:08,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 1535 transitions, 20542 flow, removed 64 selfloop flow, removed 2 redundant places. [2023-08-26 07:00:08,865 INFO L231 Difference]: Finished difference. Result has 247 places, 775 transitions, 11924 flow [2023-08-26 07:00:08,866 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=8608, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=648, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=11924, PETRI_PLACES=247, PETRI_TRANSITIONS=775} [2023-08-26 07:00:08,866 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 191 predicate places. [2023-08-26 07:00:08,866 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 775 transitions, 11924 flow [2023-08-26 07:00:08,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 52.21875) internal successors, (1671), 32 states have internal predecessors, (1671), 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) [2023-08-26 07:00:08,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:00:08,867 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:00:08,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-08-26 07:00:09,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-08-26 07:00:09,071 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 07:00:09,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:00:09,071 INFO L85 PathProgramCache]: Analyzing trace with hash -858027458, now seen corresponding path program 2 times [2023-08-26 07:00:09,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:00:09,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766559235] [2023-08-26 07:00:09,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:00:09,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:00:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:00:09,490 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:00:09,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:00:09,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766559235] [2023-08-26 07:00:09,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766559235] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 07:00:09,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884940476] [2023-08-26 07:00:09,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 07:00:09,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:00:09,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:00:09,491 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) [2023-08-26 07:00:09,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-08-26 07:00:09,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-26 07:00:09,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 07:00:09,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 47 conjunts are in the unsatisfiable core [2023-08-26 07:00:09,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:00:09,848 INFO L351 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 [2023-08-26 07:00:09,880 INFO L351 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 [2023-08-26 07:00:09,916 INFO L351 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 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-26 07:00:09,957 INFO L351 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-26 07:00:10,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:10,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:10,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:10,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:10,079 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-26 07:00:10,109 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:00:10,109 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:00:20,976 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:00:20,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884940476] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:00:20,976 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 07:00:20,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-26 07:00:20,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069028237] [2023-08-26 07:00:20,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 07:00:20,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-26 07:00:20,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:00:20,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-26 07:00:20,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=741, Unknown=4, NotChecked=0, Total=930 [2023-08-26 07:00:20,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 193 [2023-08-26 07:00:20,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 775 transitions, 11924 flow. Second operand has 31 states, 31 states have (on average 50.32258064516129) internal successors, (1560), 31 states have internal predecessors, (1560), 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) [2023-08-26 07:00:20,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:00:20,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 193 [2023-08-26 07:00:20,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:00:31,047 INFO L124 PetriNetUnfolderBase]: 16722/33581 cut-off events. [2023-08-26 07:00:31,048 INFO L125 PetriNetUnfolderBase]: For 326601/326601 co-relation queries the response was YES. [2023-08-26 07:00:31,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203524 conditions, 33581 events. 16722/33581 cut-off events. For 326601/326601 co-relation queries the response was YES. Maximal size of possible extension queue 496. Compared 276316 event pairs, 3790 based on Foata normal form. 26/33212 useless extension candidates. Maximal degree in co-relation 203390. Up to 19012 conditions per place. [2023-08-26 07:00:31,360 INFO L140 encePairwiseOnDemand]: 172/193 looper letters, 1082 selfloop transitions, 296 changer transitions 2/1380 dead transitions. [2023-08-26 07:00:31,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 1380 transitions, 21222 flow [2023-08-26 07:00:31,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-26 07:00:31,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-26 07:00:31,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1080 transitions. [2023-08-26 07:00:31,362 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34974093264248707 [2023-08-26 07:00:31,362 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1080 transitions. [2023-08-26 07:00:31,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1080 transitions. [2023-08-26 07:00:31,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:00:31,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1080 transitions. [2023-08-26 07:00:31,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 67.5) internal successors, (1080), 16 states have internal predecessors, (1080), 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) [2023-08-26 07:00:31,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 193.0) internal successors, (3281), 17 states have internal predecessors, (3281), 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) [2023-08-26 07:00:31,365 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 193.0) internal successors, (3281), 17 states have internal predecessors, (3281), 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) [2023-08-26 07:00:31,365 INFO L175 Difference]: Start difference. First operand has 247 places, 775 transitions, 11924 flow. Second operand 16 states and 1080 transitions. [2023-08-26 07:00:31,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 1380 transitions, 21222 flow [2023-08-26 07:00:33,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 1380 transitions, 20870 flow, removed 58 selfloop flow, removed 5 redundant places. [2023-08-26 07:00:33,160 INFO L231 Difference]: Finished difference. Result has 266 places, 906 transitions, 14929 flow [2023-08-26 07:00:33,161 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=11689, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=775, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=14929, PETRI_PLACES=266, PETRI_TRANSITIONS=906} [2023-08-26 07:00:33,161 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 210 predicate places. [2023-08-26 07:00:33,161 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 906 transitions, 14929 flow [2023-08-26 07:00:33,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 50.32258064516129) internal successors, (1560), 31 states have internal predecessors, (1560), 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) [2023-08-26 07:00:33,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:00:33,162 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:00:33,167 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-08-26 07:00:33,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-08-26 07:00:33,362 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 07:00:33,363 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:00:33,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1668155084, now seen corresponding path program 3 times [2023-08-26 07:00:33,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:00:33,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957483119] [2023-08-26 07:00:33,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:00:33,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:00:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:00:33,987 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:00:33,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:00:33,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957483119] [2023-08-26 07:00:33,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957483119] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 07:00:33,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989274401] [2023-08-26 07:00:33,988 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-26 07:00:33,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:00:33,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:00:33,988 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) [2023-08-26 07:00:33,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-08-26 07:00:34,127 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-26 07:00:34,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 07:00:34,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 54 conjunts are in the unsatisfiable core [2023-08-26 07:00:34,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:00:34,297 INFO L351 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 [2023-08-26 07:00:34,324 INFO L351 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 [2023-08-26 07:00:34,356 INFO L351 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 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-26 07:00:34,394 INFO L351 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-26 07:00:34,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,496 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-26 07:00:34,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,514 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-26 07:00:34,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,532 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-26 07:00:34,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,553 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-26 07:00:34,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:00:34,592 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-26 07:00:34,617 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:00:34,617 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:00:51,268 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:00:51,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989274401] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:00:51,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 07:00:51,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 32 [2023-08-26 07:00:51,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974066879] [2023-08-26 07:00:51,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 07:00:51,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-08-26 07:00:51,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:00:51,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-08-26 07:00:51,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=870, Unknown=5, NotChecked=0, Total=1056 [2023-08-26 07:00:51,270 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 193 [2023-08-26 07:00:51,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 906 transitions, 14929 flow. Second operand has 33 states, 33 states have (on average 52.121212121212125) internal successors, (1720), 33 states have internal predecessors, (1720), 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) [2023-08-26 07:00:51,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:00:51,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 193 [2023-08-26 07:00:51,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:01:15,447 INFO L124 PetriNetUnfolderBase]: 30359/60905 cut-off events. [2023-08-26 07:01:15,447 INFO L125 PetriNetUnfolderBase]: For 643794/643794 co-relation queries the response was YES. [2023-08-26 07:01:16,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376425 conditions, 60905 events. 30359/60905 cut-off events. For 643794/643794 co-relation queries the response was YES. Maximal size of possible extension queue 792. Compared 549480 event pairs, 4272 based on Foata normal form. 103/60109 useless extension candidates. Maximal degree in co-relation 376282. Up to 12396 conditions per place. [2023-08-26 07:01:16,528 INFO L140 encePairwiseOnDemand]: 171/193 looper letters, 2595 selfloop transitions, 797 changer transitions 32/3424 dead transitions. [2023-08-26 07:01:16,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 3424 transitions, 52461 flow [2023-08-26 07:01:16,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-08-26 07:01:16,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-08-26 07:01:16,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2371 transitions. [2023-08-26 07:01:16,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40949913644214164 [2023-08-26 07:01:16,531 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2371 transitions. [2023-08-26 07:01:16,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2371 transitions. [2023-08-26 07:01:16,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:01:16,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2371 transitions. [2023-08-26 07:01:16,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 79.03333333333333) internal successors, (2371), 30 states have internal predecessors, (2371), 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) [2023-08-26 07:01:16,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 193.0) internal successors, (5983), 31 states have internal predecessors, (5983), 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) [2023-08-26 07:01:16,538 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 193.0) internal successors, (5983), 31 states have internal predecessors, (5983), 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) [2023-08-26 07:01:16,538 INFO L175 Difference]: Start difference. First operand has 266 places, 906 transitions, 14929 flow. Second operand 30 states and 2371 transitions. [2023-08-26 07:01:16,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 3424 transitions, 52461 flow [2023-08-26 07:01:22,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 3424 transitions, 51835 flow, removed 48 selfloop flow, removed 5 redundant places. [2023-08-26 07:01:22,200 INFO L231 Difference]: Finished difference. Result has 311 places, 1463 transitions, 29004 flow [2023-08-26 07:01:22,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=14718, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=906, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=267, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=29004, PETRI_PLACES=311, PETRI_TRANSITIONS=1463} [2023-08-26 07:01:22,201 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 255 predicate places. [2023-08-26 07:01:22,201 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 1463 transitions, 29004 flow [2023-08-26 07:01:22,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 52.121212121212125) internal successors, (1720), 33 states have internal predecessors, (1720), 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) [2023-08-26 07:01:22,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:01:22,202 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:01:22,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-08-26 07:01:22,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:01:22,402 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 07:01:22,403 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:01:22,403 INFO L85 PathProgramCache]: Analyzing trace with hash 261043352, now seen corresponding path program 3 times [2023-08-26 07:01:22,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:01:22,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222504359] [2023-08-26 07:01:22,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:01:22,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:01:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:01:22,788 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:01:22,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:01:22,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222504359] [2023-08-26 07:01:22,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222504359] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 07:01:22,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065124072] [2023-08-26 07:01:22,788 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-26 07:01:22,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:01:22,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:01:22,789 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) [2023-08-26 07:01:22,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-08-26 07:01:22,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-26 07:01:22,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 07:01:22,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 46 conjunts are in the unsatisfiable core [2023-08-26 07:01:22,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:01:23,172 INFO L351 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 [2023-08-26 07:01:23,213 INFO L351 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 [2023-08-26 07:01:23,247 INFO L351 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 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-26 07:01:23,295 INFO L351 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-26 07:01:23,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:01:23,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:01:23,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:01:23,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:01:23,389 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-26 07:01:23,417 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:01:23,417 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:01:33,086 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:01:33,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065124072] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:01:33,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 07:01:33,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-08-26 07:01:33,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034543857] [2023-08-26 07:01:33,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 07:01:33,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-26 07:01:33,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:01:33,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-26 07:01:33,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=814, Unknown=4, NotChecked=0, Total=992 [2023-08-26 07:01:33,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 193 [2023-08-26 07:01:33,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 1463 transitions, 29004 flow. Second operand has 32 states, 32 states have (on average 50.21875) internal successors, (1607), 32 states have internal predecessors, (1607), 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) [2023-08-26 07:01:33,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:01:33,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 193 [2023-08-26 07:01:33,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:02:08,156 INFO L124 PetriNetUnfolderBase]: 38297/76880 cut-off events. [2023-08-26 07:02:08,156 INFO L125 PetriNetUnfolderBase]: For 1062654/1062654 co-relation queries the response was YES. [2023-08-26 07:02:09,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 510269 conditions, 76880 events. 38297/76880 cut-off events. For 1062654/1062654 co-relation queries the response was YES. Maximal size of possible extension queue 886. Compared 686429 event pairs, 11257 based on Foata normal form. 29/75800 useless extension candidates. Maximal degree in co-relation 510105. Up to 52596 conditions per place. [2023-08-26 07:02:09,494 INFO L140 encePairwiseOnDemand]: 171/193 looper letters, 2592 selfloop transitions, 573 changer transitions 0/3165 dead transitions. [2023-08-26 07:02:09,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 3165 transitions, 57252 flow [2023-08-26 07:02:09,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-08-26 07:02:09,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-08-26 07:02:09,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 2003 transitions. [2023-08-26 07:02:09,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3578702876541004 [2023-08-26 07:02:09,497 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 2003 transitions. [2023-08-26 07:02:09,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 2003 transitions. [2023-08-26 07:02:09,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:02:09,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 2003 transitions. [2023-08-26 07:02:09,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 69.06896551724138) internal successors, (2003), 29 states have internal predecessors, (2003), 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) [2023-08-26 07:02:09,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 193.0) internal successors, (5790), 30 states have internal predecessors, (5790), 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) [2023-08-26 07:02:09,503 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 193.0) internal successors, (5790), 30 states have internal predecessors, (5790), 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) [2023-08-26 07:02:09,503 INFO L175 Difference]: Start difference. First operand has 311 places, 1463 transitions, 29004 flow. Second operand 29 states and 2003 transitions. [2023-08-26 07:02:09,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 3165 transitions, 57252 flow [2023-08-26 07:02:17,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 3165 transitions, 56500 flow, removed 181 selfloop flow, removed 6 redundant places. [2023-08-26 07:02:17,902 INFO L231 Difference]: Finished difference. Result has 354 places, 1822 transitions, 37183 flow [2023-08-26 07:02:17,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=28414, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=239, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=37183, PETRI_PLACES=354, PETRI_TRANSITIONS=1822} [2023-08-26 07:02:17,903 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 298 predicate places. [2023-08-26 07:02:17,903 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 1822 transitions, 37183 flow [2023-08-26 07:02:17,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 50.21875) internal successors, (1607), 32 states have internal predecessors, (1607), 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) [2023-08-26 07:02:17,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:02:17,904 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:02:17,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-08-26 07:02:18,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:02:18,104 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 07:02:18,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:02:18,104 INFO L85 PathProgramCache]: Analyzing trace with hash 59243400, now seen corresponding path program 1 times [2023-08-26 07:02:18,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:02:18,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841231251] [2023-08-26 07:02:18,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:02:18,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:02:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:02:18,465 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:02:18,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:02:18,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841231251] [2023-08-26 07:02:18,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841231251] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 07:02:18,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513421024] [2023-08-26 07:02:18,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:02:18,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:02:18,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:02:18,467 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) [2023-08-26 07:02:18,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-08-26 07:02:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:02:18,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 41 conjunts are in the unsatisfiable core [2023-08-26 07:02:18,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:02:18,831 INFO L351 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 [2023-08-26 07:02:18,860 INFO L351 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 [2023-08-26 07:02:18,892 INFO L351 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 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-26 07:02:18,932 INFO L351 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-26 07:02:19,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:02:19,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:02:19,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:02:19,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:02:19,025 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-26 07:02:19,052 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:02:19,052 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:02:28,819 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:02:28,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513421024] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:02:28,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 07:02:28,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-08-26 07:02:28,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453469454] [2023-08-26 07:02:28,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 07:02:28,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-26 07:02:28,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:02:28,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-26 07:02:28,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=808, Unknown=3, NotChecked=0, Total=992 [2023-08-26 07:02:28,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 193 [2023-08-26 07:02:28,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 1822 transitions, 37183 flow. Second operand has 32 states, 32 states have (on average 50.21875) internal successors, (1607), 32 states have internal predecessors, (1607), 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) [2023-08-26 07:02:28,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:02:28,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 193 [2023-08-26 07:02:28,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:03:12,595 INFO L124 PetriNetUnfolderBase]: 40050/80478 cut-off events. [2023-08-26 07:03:12,596 INFO L125 PetriNetUnfolderBase]: For 1241970/1241970 co-relation queries the response was YES. [2023-08-26 07:03:13,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 563590 conditions, 80478 events. 40050/80478 cut-off events. For 1241970/1241970 co-relation queries the response was YES. Maximal size of possible extension queue 910. Compared 727444 event pairs, 8609 based on Foata normal form. 284/79470 useless extension candidates. Maximal degree in co-relation 563405. Up to 25884 conditions per place. [2023-08-26 07:03:14,253 INFO L140 encePairwiseOnDemand]: 163/193 looper letters, 3420 selfloop transitions, 780 changer transitions 34/4234 dead transitions. [2023-08-26 07:03:14,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 4234 transitions, 75015 flow [2023-08-26 07:03:14,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-08-26 07:03:14,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2023-08-26 07:03:14,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2563 transitions. [2023-08-26 07:03:14,257 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40241796200345425 [2023-08-26 07:03:14,257 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 2563 transitions. [2023-08-26 07:03:14,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 2563 transitions. [2023-08-26 07:03:14,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:03:14,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 2563 transitions. [2023-08-26 07:03:14,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 77.66666666666667) internal successors, (2563), 33 states have internal predecessors, (2563), 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) [2023-08-26 07:03:14,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 193.0) internal successors, (6562), 34 states have internal predecessors, (6562), 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) [2023-08-26 07:03:14,264 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 193.0) internal successors, (6562), 34 states have internal predecessors, (6562), 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) [2023-08-26 07:03:14,264 INFO L175 Difference]: Start difference. First operand has 354 places, 1822 transitions, 37183 flow. Second operand 33 states and 2563 transitions. [2023-08-26 07:03:14,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 4234 transitions, 75015 flow [2023-08-26 07:03:26,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 4234 transitions, 74366 flow, removed 324 selfloop flow, removed 1 redundant places. [2023-08-26 07:03:26,942 INFO L231 Difference]: Finished difference. Result has 408 places, 2297 transitions, 46843 flow [2023-08-26 07:03:26,943 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=36654, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1822, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=367, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=46843, PETRI_PLACES=408, PETRI_TRANSITIONS=2297} [2023-08-26 07:03:26,943 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 352 predicate places. [2023-08-26 07:03:26,943 INFO L495 AbstractCegarLoop]: Abstraction has has 408 places, 2297 transitions, 46843 flow [2023-08-26 07:03:26,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 50.21875) internal successors, (1607), 32 states have internal predecessors, (1607), 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) [2023-08-26 07:03:26,944 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:03:26,944 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:03:26,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-08-26 07:03:27,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:03:27,148 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 07:03:27,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:03:27,149 INFO L85 PathProgramCache]: Analyzing trace with hash 555953484, now seen corresponding path program 4 times [2023-08-26 07:03:27,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:03:27,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339325171] [2023-08-26 07:03:27,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:03:27,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:03:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:03:27,530 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:03:27,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:03:27,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339325171] [2023-08-26 07:03:27,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339325171] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 07:03:27,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522818859] [2023-08-26 07:03:27,531 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-26 07:03:27,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:03:27,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:03:27,532 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) [2023-08-26 07:03:27,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-08-26 07:03:27,719 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-26 07:03:27,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 07:03:27,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 43 conjunts are in the unsatisfiable core [2023-08-26 07:03:27,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:03:27,946 INFO L351 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 [2023-08-26 07:03:27,972 INFO L351 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 [2023-08-26 07:03:27,999 INFO L351 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 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-26 07:03:28,042 INFO L351 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-26 07:03:28,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:03:28,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:03:28,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:03:28,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:03:28,081 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-26 07:03:28,107 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:03:28,107 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:03:28,713 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:03:28,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522818859] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:03:28,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 07:03:28,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-08-26 07:03:28,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737666450] [2023-08-26 07:03:28,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 07:03:28,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-26 07:03:28,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:03:28,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-26 07:03:28,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=826, Unknown=0, NotChecked=0, Total=992 [2023-08-26 07:03:28,715 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 193 [2023-08-26 07:03:28,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 2297 transitions, 46843 flow. Second operand has 32 states, 32 states have (on average 52.21875) internal successors, (1671), 32 states have internal predecessors, (1671), 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) [2023-08-26 07:03:28,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:03:28,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 193 [2023-08-26 07:03:28,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:04:39,181 INFO L124 PetriNetUnfolderBase]: 50270/100981 cut-off events. [2023-08-26 07:04:39,182 INFO L125 PetriNetUnfolderBase]: For 1830789/1830789 co-relation queries the response was YES. [2023-08-26 07:04:41,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 756084 conditions, 100981 events. 50270/100981 cut-off events. For 1830789/1830789 co-relation queries the response was YES. Maximal size of possible extension queue 1183. Compared 950689 event pairs, 9233 based on Foata normal form. 153/99277 useless extension candidates. Maximal degree in co-relation 755875. Up to 25031 conditions per place. [2023-08-26 07:04:41,795 INFO L140 encePairwiseOnDemand]: 170/193 looper letters, 4015 selfloop transitions, 1253 changer transitions 38/5306 dead transitions. [2023-08-26 07:04:41,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 5306 transitions, 100270 flow [2023-08-26 07:04:41,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-08-26 07:04:41,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-08-26 07:04:41,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 2838 transitions. [2023-08-26 07:04:41,798 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40846286701208984 [2023-08-26 07:04:41,798 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 2838 transitions. [2023-08-26 07:04:41,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 2838 transitions. [2023-08-26 07:04:41,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:04:41,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 2838 transitions. [2023-08-26 07:04:41,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 78.83333333333333) internal successors, (2838), 36 states have internal predecessors, (2838), 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) [2023-08-26 07:04:41,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 193.0) internal successors, (7141), 37 states have internal predecessors, (7141), 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) [2023-08-26 07:04:41,806 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 193.0) internal successors, (7141), 37 states have internal predecessors, (7141), 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) [2023-08-26 07:04:41,806 INFO L175 Difference]: Start difference. First operand has 408 places, 2297 transitions, 46843 flow. Second operand 36 states and 2838 transitions. [2023-08-26 07:04:41,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 5306 transitions, 100270 flow [2023-08-26 07:05:13,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 5306 transitions, 99081 flow, removed 594 selfloop flow, removed 1 redundant places. [2023-08-26 07:05:13,589 INFO L231 Difference]: Finished difference. Result has 464 places, 2831 transitions, 63294 flow [2023-08-26 07:05:13,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=46096, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=737, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=63294, PETRI_PLACES=464, PETRI_TRANSITIONS=2831} [2023-08-26 07:05:13,590 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 408 predicate places. [2023-08-26 07:05:13,591 INFO L495 AbstractCegarLoop]: Abstraction has has 464 places, 2831 transitions, 63294 flow [2023-08-26 07:05:13,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 52.21875) internal successors, (1671), 32 states have internal predecessors, (1671), 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) [2023-08-26 07:05:13,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:05:13,591 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:05:13,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-08-26 07:05:13,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:05:13,795 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 07:05:13,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:05:13,796 INFO L85 PathProgramCache]: Analyzing trace with hash -610637988, now seen corresponding path program 5 times [2023-08-26 07:05:13,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:05:13,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107332865] [2023-08-26 07:05:13,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:05:13,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:05:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:05:14,397 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:05:14,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:05:14,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107332865] [2023-08-26 07:05:14,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107332865] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 07:05:14,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736904252] [2023-08-26 07:05:14,397 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-26 07:05:14,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:05:14,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:05:14,398 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) [2023-08-26 07:05:14,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-08-26 07:05:14,784 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-08-26 07:05:14,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 07:05:14,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 54 conjunts are in the unsatisfiable core [2023-08-26 07:05:14,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:05:14,945 INFO L351 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 [2023-08-26 07:05:14,974 INFO L351 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 [2023-08-26 07:05:15,010 INFO L351 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 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-26 07:05:15,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:05:15,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:05:15,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:05:15,086 INFO L351 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-26 07:05:15,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:05:15,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:05:15,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:05:15,102 INFO L351 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 0 case distinctions, treesize of input 35 treesize of output 40 [2023-08-26 07:05:15,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:05:15,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:05:15,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:05:15,129 INFO L351 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 0 case distinctions, treesize of input 35 treesize of output 40 [2023-08-26 07:05:15,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:05:15,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:05:15,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:05:15,143 INFO L351 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 0 case distinctions, treesize of input 35 treesize of output 40 [2023-08-26 07:05:15,157 INFO L351 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-26 07:05:15,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:05:15,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:05:15,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:05:15,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:05:15,218 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-26 07:05:15,245 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:05:15,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:05:42,694 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:05:42,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736904252] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:05:42,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 07:05:42,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 32 [2023-08-26 07:05:42,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110183959] [2023-08-26 07:05:42,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 07:05:42,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-08-26 07:05:42,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:05:42,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-08-26 07:05:42,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=888, Unknown=7, NotChecked=0, Total=1056 [2023-08-26 07:05:42,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 193 [2023-08-26 07:05:42,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 2831 transitions, 63294 flow. Second operand has 33 states, 33 states have (on average 52.121212121212125) internal successors, (1720), 33 states have internal predecessors, (1720), 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) [2023-08-26 07:05:42,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:05:42,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 193 [2023-08-26 07:05:42,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:07:09,199 INFO L124 PetriNetUnfolderBase]: 52704/105823 cut-off events. [2023-08-26 07:07:09,199 INFO L125 PetriNetUnfolderBase]: For 2549844/2549844 co-relation queries the response was YES. [2023-08-26 07:07:11,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 846016 conditions, 105823 events. 52704/105823 cut-off events. For 2549844/2549844 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 1004704 event pairs, 9139 based on Foata normal form. 150/104058 useless extension candidates. Maximal degree in co-relation 845784. Up to 25780 conditions per place. [2023-08-26 07:07:12,099 INFO L140 encePairwiseOnDemand]: 171/193 looper letters, 3550 selfloop transitions, 1528 changer transitions 34/5112 dead transitions. [2023-08-26 07:07:12,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 5112 transitions, 108884 flow [2023-08-26 07:07:12,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-08-26 07:07:12,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-08-26 07:07:12,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 2526 transitions. [2023-08-26 07:07:12,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40900259067357514 [2023-08-26 07:07:12,102 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 2526 transitions. [2023-08-26 07:07:12,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 2526 transitions. [2023-08-26 07:07:12,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:07:12,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 2526 transitions. [2023-08-26 07:07:12,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 78.9375) internal successors, (2526), 32 states have internal predecessors, (2526), 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) [2023-08-26 07:07:12,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 193.0) internal successors, (6369), 33 states have internal predecessors, (6369), 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) [2023-08-26 07:07:12,109 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 193.0) internal successors, (6369), 33 states have internal predecessors, (6369), 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) [2023-08-26 07:07:12,109 INFO L175 Difference]: Start difference. First operand has 464 places, 2831 transitions, 63294 flow. Second operand 32 states and 2526 transitions. [2023-08-26 07:07:12,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 5112 transitions, 108884 flow [2023-08-26 07:07:52,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 5112 transitions, 107527 flow, removed 532 selfloop flow, removed 7 redundant places. [2023-08-26 07:07:52,238 INFO L231 Difference]: Finished difference. Result has 498 places, 3101 transitions, 75123 flow [2023-08-26 07:07:52,239 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=62285, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2831, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1258, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=75123, PETRI_PLACES=498, PETRI_TRANSITIONS=3101} [2023-08-26 07:07:52,240 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 442 predicate places. [2023-08-26 07:07:52,240 INFO L495 AbstractCegarLoop]: Abstraction has has 498 places, 3101 transitions, 75123 flow [2023-08-26 07:07:52,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 52.121212121212125) internal successors, (1720), 33 states have internal predecessors, (1720), 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) [2023-08-26 07:07:52,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:07:52,240 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:07:52,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-08-26 07:07:52,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:07:52,446 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 07:07:52,446 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:07:52,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1798025093, now seen corresponding path program 1 times [2023-08-26 07:07:52,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:07:52,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925094403] [2023-08-26 07:07:52,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:07:52,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:07:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:07:53,037 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:07:53,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:07:53,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925094403] [2023-08-26 07:07:53,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925094403] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 07:07:53,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115650986] [2023-08-26 07:07:53,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:07:53,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:07:53,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:07:53,039 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) [2023-08-26 07:07:53,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-08-26 07:07:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:07:53,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 54 conjunts are in the unsatisfiable core [2023-08-26 07:07:53,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:07:53,384 INFO L351 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 [2023-08-26 07:07:53,408 INFO L351 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 21 treesize of output 20 [2023-08-26 07:07:53,446 INFO L351 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 0 case distinctions, treesize of input 30 treesize of output 32 [2023-08-26 07:07:53,489 INFO L351 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 0 case distinctions, treesize of input 39 treesize of output 44 [2023-08-26 07:07:53,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,581 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-26 07:07:53,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,604 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-26 07:07:53,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,625 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-26 07:07:53,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,643 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-26 07:07:53,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:07:53,683 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-26 07:07:53,712 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:07:53,712 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:07:54,881 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:07:54,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115650986] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:07:54,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 07:07:54,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 32 [2023-08-26 07:07:54,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370146798] [2023-08-26 07:07:54,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 07:07:54,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-08-26 07:07:54,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:07:54,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-08-26 07:07:54,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=875, Unknown=0, NotChecked=0, Total=1056 [2023-08-26 07:07:54,883 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 193 [2023-08-26 07:07:54,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 3101 transitions, 75123 flow. Second operand has 33 states, 33 states have (on average 52.121212121212125) internal successors, (1720), 33 states have internal predecessors, (1720), 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) [2023-08-26 07:07:54,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:07:54,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 193 [2023-08-26 07:07:54,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:09:35,162 INFO L124 PetriNetUnfolderBase]: 53515/107445 cut-off events. [2023-08-26 07:09:35,162 INFO L125 PetriNetUnfolderBase]: For 2961251/2961251 co-relation queries the response was YES. [2023-08-26 07:09:37,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 886068 conditions, 107445 events. 53515/107445 cut-off events. For 2961251/2961251 co-relation queries the response was YES. Maximal size of possible extension queue 1331. Compared 1022542 event pairs, 12131 based on Foata normal form. 103/105633 useless extension candidates. Maximal degree in co-relation 885826. Up to 30553 conditions per place. [2023-08-26 07:09:38,457 INFO L140 encePairwiseOnDemand]: 175/193 looper letters, 4255 selfloop transitions, 1218 changer transitions 0/5473 dead transitions. [2023-08-26 07:09:38,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 5473 transitions, 129901 flow [2023-08-26 07:09:38,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-08-26 07:09:38,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-08-26 07:09:38,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 1963 transitions. [2023-08-26 07:09:38,460 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36324944485566246 [2023-08-26 07:09:38,460 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 1963 transitions. [2023-08-26 07:09:38,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 1963 transitions. [2023-08-26 07:09:38,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:09:38,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 1963 transitions. [2023-08-26 07:09:38,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 70.10714285714286) internal successors, (1963), 28 states have internal predecessors, (1963), 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) [2023-08-26 07:09:38,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 193.0) internal successors, (5597), 29 states have internal predecessors, (5597), 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) [2023-08-26 07:09:38,465 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 193.0) internal successors, (5597), 29 states have internal predecessors, (5597), 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) [2023-08-26 07:09:38,465 INFO L175 Difference]: Start difference. First operand has 498 places, 3101 transitions, 75123 flow. Second operand 28 states and 1963 transitions. [2023-08-26 07:09:38,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 5473 transitions, 129901 flow [2023-08-26 07:10:16,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 5473 transitions, 127473 flow, removed 264 selfloop flow, removed 20 redundant places. [2023-08-26 07:10:16,978 INFO L231 Difference]: Finished difference. Result has 527 places, 3581 transitions, 91202 flow [2023-08-26 07:10:16,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=73312, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=751, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=91202, PETRI_PLACES=527, PETRI_TRANSITIONS=3581} [2023-08-26 07:10:16,980 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 471 predicate places. [2023-08-26 07:10:16,980 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 3581 transitions, 91202 flow [2023-08-26 07:10:16,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 52.121212121212125) internal successors, (1720), 33 states have internal predecessors, (1720), 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) [2023-08-26 07:10:16,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:10:16,981 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:10:16,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-08-26 07:10:17,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:10:17,186 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-26 07:10:17,187 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:10:17,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1193576628, now seen corresponding path program 6 times [2023-08-26 07:10:17,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:10:17,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487145213] [2023-08-26 07:10:17,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:10:17,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:10:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:10:17,815 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:10:17,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:10:17,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487145213] [2023-08-26 07:10:17,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487145213] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 07:10:17,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89626750] [2023-08-26 07:10:17,815 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-26 07:10:17,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:10:17,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:10:17,816 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) [2023-08-26 07:10:17,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-08-26 07:10:18,044 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2023-08-26 07:10:18,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 07:10:18,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 58 conjunts are in the unsatisfiable core [2023-08-26 07:10:18,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:10:18,203 INFO L351 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 [2023-08-26 07:10:18,234 INFO L351 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 [2023-08-26 07:10:18,301 INFO L351 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 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-26 07:10:18,334 INFO L351 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 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-26 07:10:18,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,375 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-26 07:10:18,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,396 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-26 07:10:18,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,412 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-26 07:10:18,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,436 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-26 07:10:18,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:10:18,506 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 60 [2023-08-26 07:10:22,549 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:10:22,549 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:10:28,304 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-26 07:10:28,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89626750] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:10:28,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 07:10:28,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 14] total 35 [2023-08-26 07:10:28,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070870585] [2023-08-26 07:10:28,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 07:10:28,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-08-26 07:10:28,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:10:28,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-08-26 07:10:28,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1078, Unknown=1, NotChecked=0, Total=1260 [2023-08-26 07:10:28,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 193 [2023-08-26 07:10:28,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 3581 transitions, 91202 flow. Second operand has 36 states, 36 states have (on average 51.861111111111114) internal successors, (1867), 36 states have internal predecessors, (1867), 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) [2023-08-26 07:10:28,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:10:28,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 193 [2023-08-26 07:10:28,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:10:36,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-26 07:10:42,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-26 07:10:44,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-26 07:10:46,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-26 07:10:49,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-26 07:10:53,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-26 07:10:56,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-26 07:11:00,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-26 07:11:05,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-26 07:11:08,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] Received shutdown request... [2023-08-26 07:12:07,248 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-26 07:12:07,248 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 [2023-08-26 07:12:08,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-08-26 07:12:08,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-08-26 07:12:08,972 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2023-08-26 07:12:08,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-26 07:12:08,972 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-08-26 07:12:08,973 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-08-26 07:12:08,973 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-08-26 07:12:08,973 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-08-26 07:12:08,973 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2023-08-26 07:12:08,973 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 9 remaining) [2023-08-26 07:12:08,973 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-08-26 07:12:08,973 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-08-26 07:12:08,973 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-08-26 07:12:08,974 INFO L445 BasicCegarLoop]: Path program histogram: [6, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:12:08,987 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 07:12:08,987 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 07:12:08,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 07:12:08 BasicIcfg [2023-08-26 07:12:08,995 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 07:12:08,995 INFO L158 Benchmark]: Toolchain (without parser) took 789971.27ms. Allocated memory was 362.8MB in the beginning and 12.4GB in the end (delta: 12.0GB). Free memory was 336.8MB in the beginning and 9.7GB in the end (delta: -9.3GB). Peak memory consumption was 6.7GB. Max. memory is 16.0GB. [2023-08-26 07:12:08,995 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 362.8MB. Free memory was 340.8MB in the beginning and 340.6MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 07:12:08,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.28ms. Allocated memory is still 362.8MB. Free memory was 336.1MB in the beginning and 308.1MB in the end (delta: 28.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-26 07:12:08,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.45ms. Allocated memory is still 362.8MB. Free memory was 308.1MB in the beginning and 305.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 07:12:08,996 INFO L158 Benchmark]: Boogie Preprocessor took 25.07ms. Allocated memory is still 362.8MB. Free memory was 305.3MB in the beginning and 303.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 07:12:08,996 INFO L158 Benchmark]: RCFGBuilder took 384.53ms. Allocated memory is still 362.8MB. Free memory was 303.2MB in the beginning and 285.8MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-26 07:12:08,997 INFO L158 Benchmark]: TraceAbstraction took 789040.99ms. Allocated memory was 362.8MB in the beginning and 12.4GB in the end (delta: 12.0GB). Free memory was 285.1MB in the beginning and 9.7GB in the end (delta: -9.4GB). Peak memory consumption was 6.7GB. Max. memory is 16.0GB. [2023-08-26 07:12:09,002 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 362.8MB. Free memory was 340.8MB in the beginning and 340.6MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 472.28ms. Allocated memory is still 362.8MB. Free memory was 336.1MB in the beginning and 308.1MB in the end (delta: 28.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 44.45ms. Allocated memory is still 362.8MB. Free memory was 308.1MB in the beginning and 305.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.07ms. Allocated memory is still 362.8MB. Free memory was 305.3MB in the beginning and 303.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 384.53ms. Allocated memory is still 362.8MB. Free memory was 303.2MB in the beginning and 285.8MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 789040.99ms. Allocated memory was 362.8MB in the beginning and 12.4GB in the end (delta: 12.0GB). Free memory was 285.1MB in the beginning and 9.7GB in the end (delta: -9.4GB). Peak memory consumption was 6.7GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 736]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [736] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3s, 120 PlacesBefore, 56 PlacesAfterwards, 122 TransitionsBefore, 55 TransitionsAfterwards, 4588 CoEnabledTransitionPairs, 4 FixpointIterations, 17 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 70 TotalNumberOfCompositions, 13982 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4029, independent: 3617, independent conditional: 0, independent unconditional: 3617, dependent: 412, dependent conditional: 0, dependent unconditional: 412, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2128, independent: 2064, independent conditional: 0, independent unconditional: 2064, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4029, independent: 1553, independent conditional: 0, independent unconditional: 1553, dependent: 348, dependent conditional: 0, dependent unconditional: 348, unknown: 2128, unknown conditional: 0, unknown unconditional: 2128] , Statistics on independence cache: Total cache size (in pairs): 277, Positive cache size: 232, Positive conditional cache size: 0, Positive unconditional cache size: 232, Negative cache size: 45, Negative conditional cache size: 0, Negative unconditional cache size: 45, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 923]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 939]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 923]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 939]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 923]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 936]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 923]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 155 locations, 9 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: 788.9s, OverallIterations: 25, TraceHistogramMax: 10, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 666.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 9369 SdHoareTripleChecker+Valid, 81.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9369 mSDsluCounter, 3827 SdHoareTripleChecker+Invalid, 75.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3102 mSDsCounter, 2025 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45998 IncrementalHoareTripleChecker+Invalid, 48033 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2025 mSolverCounterUnsat, 725 mSDtfsCounter, 45998 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1772 GetRequests, 1067 SyntacticMatches, 23 SemanticMatches, 682 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9304 ImplicationChecksByTransitivity, 112.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91202occurred in iteration=24, InterpolantAutomatonStates: 347, 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: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 113.5s InterpolantComputationTime, 1583 NumberOfCodeBlocks, 1537 NumberOfCodeBlocksAsserted, 57 NumberOfCheckSat, 2125 ConstructedInterpolants, 104 QuantifiedInterpolants, 37088 SizeOfPredicates, 202 NumberOfNonLiveVariables, 4658 ConjunctsInSsa, 733 ConjunctsInUnsatCore, 60 InterpolantComputations, 10 PerfectInterpolantSequences, 2738/3056 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