./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:51:25,770 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:51:25,848 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:51:25,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:51:25,851 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:51:25,865 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:51:25,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:51:25,865 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:51:25,866 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:51:25,866 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:51:25,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:51:25,867 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:51:25,867 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:51:25,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:51:25,867 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:51:25,868 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:51:25,868 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:51:25,868 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:51:25,868 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:51:25,869 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:51:25,869 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:51:25,872 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:51:25,872 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:51:25,873 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:51:25,873 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:51:25,873 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:51:25,873 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:51:25,874 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:51:25,874 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:51:25,874 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:51:25,875 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:51:25,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:51:25,875 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:51:25,875 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:51:25,876 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:51:25,876 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:51:25,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:51:25,876 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:51:25,877 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:51:25,877 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:51:25,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:51:25,878 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 [2024-11-09 06:51:26,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:51:26,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:51:26,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:51:26,169 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:51:26,169 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:51:26,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2024-11-09 06:51:27,698 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:51:27,958 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:51:27,958 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2024-11-09 06:51:27,976 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/925dbccc0/d989a81d21234857b0197362ae39f426/FLAGc56d6c710 [2024-11-09 06:51:27,989 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/925dbccc0/d989a81d21234857b0197362ae39f426 [2024-11-09 06:51:27,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:51:27,992 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:51:27,996 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:51:27,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:51:28,001 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:51:28,002 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:51:27" (1/1) ... [2024-11-09 06:51:28,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78a0edd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:28, skipping insertion in model container [2024-11-09 06:51:28,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:51:27" (1/1) ... [2024-11-09 06:51:28,044 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:51:28,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:51:28,573 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:51:28,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:51:28,690 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:51:28,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:28 WrapperNode [2024-11-09 06:51:28,691 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:51:28,692 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:51:28,692 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:51:28,692 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:51:28,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:28" (1/1) ... [2024-11-09 06:51:28,722 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:28" (1/1) ... [2024-11-09 06:51:28,761 INFO L138 Inliner]: procedures = 263, calls = 70, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 156 [2024-11-09 06:51:28,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:51:28,762 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:51:28,762 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:51:28,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:51:28,778 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:28" (1/1) ... [2024-11-09 06:51:28,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:28" (1/1) ... [2024-11-09 06:51:28,792 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:28" (1/1) ... [2024-11-09 06:51:28,794 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:28" (1/1) ... [2024-11-09 06:51:28,806 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:28" (1/1) ... [2024-11-09 06:51:28,814 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:28" (1/1) ... [2024-11-09 06:51:28,820 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:28" (1/1) ... [2024-11-09 06:51:28,822 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:28" (1/1) ... [2024-11-09 06:51:28,827 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:51:28,828 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:51:28,829 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:51:28,829 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:51:28,830 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:28" (1/1) ... [2024-11-09 06:51:28,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:51:28,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:28,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 06:51:28,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 06:51:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 06:51:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:51:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:51:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 06:51:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:51:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 06:51:28,917 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 06:51:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:51:28,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:51:28,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:51:28,919 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:51:29,104 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:51:29,106 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:51:29,390 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:51:29,390 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:51:29,416 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:51:29,417 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 06:51:29,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:51:29 BoogieIcfgContainer [2024-11-09 06:51:29,418 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:51:29,420 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:51:29,420 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:51:29,423 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:51:29,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:51:27" (1/3) ... [2024-11-09 06:51:29,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53bfdf12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:51:29, skipping insertion in model container [2024-11-09 06:51:29,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:28" (2/3) ... [2024-11-09 06:51:29,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53bfdf12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:51:29, skipping insertion in model container [2024-11-09 06:51:29,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:51:29" (3/3) ... [2024-11-09 06:51:29,427 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_02-funloop_norace.i [2024-11-09 06:51:29,444 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:51:29,444 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 06:51:29,445 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:51:29,516 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 06:51:29,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 162 transitions, 328 flow [2024-11-09 06:51:29,641 INFO L124 PetriNetUnfolderBase]: 6/161 cut-off events. [2024-11-09 06:51:29,642 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:51:29,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 161 events. 6/161 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 126 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2024-11-09 06:51:29,650 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 162 transitions, 328 flow [2024-11-09 06:51:29,655 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 161 transitions, 325 flow [2024-11-09 06:51:29,664 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:51:29,670 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@58bf7493, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:51:29,671 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-09 06:51:29,704 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:51:29,704 INFO L124 PetriNetUnfolderBase]: 4/119 cut-off events. [2024-11-09 06:51:29,704 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:51:29,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:29,705 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:29,706 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:29,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:29,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1917384507, now seen corresponding path program 1 times [2024-11-09 06:51:29,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:29,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722099016] [2024-11-09 06:51:29,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:29,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:30,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:30,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:30,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722099016] [2024-11-09 06:51:30,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722099016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:30,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:30,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:51:30,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395297527] [2024-11-09 06:51:30,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:30,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:51:30,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:30,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:51:30,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:51:30,274 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 162 [2024-11-09 06:51:30,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 161 transitions, 325 flow. Second operand has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:30,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:30,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 162 [2024-11-09 06:51:30,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:30,402 INFO L124 PetriNetUnfolderBase]: 13/246 cut-off events. [2024-11-09 06:51:30,403 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:51:30,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 246 events. 13/246 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 399 event pairs, 6 based on Foata normal form. 10/242 useless extension candidates. Maximal degree in co-relation 183. Up to 28 conditions per place. [2024-11-09 06:51:30,408 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 10 selfloop transitions, 2 changer transitions 0/159 dead transitions. [2024-11-09 06:51:30,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 159 transitions, 345 flow [2024-11-09 06:51:30,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:51:30,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:51:30,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 461 transitions. [2024-11-09 06:51:30,426 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.948559670781893 [2024-11-09 06:51:30,429 INFO L175 Difference]: Start difference. First operand has 159 places, 161 transitions, 325 flow. Second operand 3 states and 461 transitions. [2024-11-09 06:51:30,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 159 transitions, 345 flow [2024-11-09 06:51:30,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 159 transitions, 344 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:51:30,440 INFO L231 Difference]: Finished difference. Result has 161 places, 159 transitions, 330 flow [2024-11-09 06:51:30,444 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=161, PETRI_TRANSITIONS=159} [2024-11-09 06:51:30,448 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 2 predicate places. [2024-11-09 06:51:30,449 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 159 transitions, 330 flow [2024-11-09 06:51:30,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:30,450 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:30,450 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:30,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:51:30,451 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:30,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:30,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1917798043, now seen corresponding path program 1 times [2024-11-09 06:51:30,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:30,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764873878] [2024-11-09 06:51:30,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:30,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:30,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:30,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:30,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764873878] [2024-11-09 06:51:30,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764873878] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:30,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902337587] [2024-11-09 06:51:30,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:30,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:30,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:30,717 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) [2024-11-09 06:51:30,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:51:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:30,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:51:30,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:30,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:30,916 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:51:30,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:30,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902337587] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:51:30,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:51:30,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 06:51:30,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306684648] [2024-11-09 06:51:30,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:51:30,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:51:30,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:30,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:51:30,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:51:31,009 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 162 [2024-11-09 06:51:31,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 159 transitions, 330 flow. Second operand has 10 states, 10 states have (on average 147.0) internal successors, (1470), 10 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:31,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:31,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 162 [2024-11-09 06:51:31,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:31,170 INFO L124 PetriNetUnfolderBase]: 13/253 cut-off events. [2024-11-09 06:51:31,171 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:51:31,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 253 events. 13/253 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 394 event pairs, 6 based on Foata normal form. 2/241 useless extension candidates. Maximal degree in co-relation 221. Up to 28 conditions per place. [2024-11-09 06:51:31,177 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 14 selfloop transitions, 9 changer transitions 0/167 dead transitions. [2024-11-09 06:51:31,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 167 transitions, 394 flow [2024-11-09 06:51:31,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:51:31,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:51:31,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1330 transitions. [2024-11-09 06:51:31,187 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9122085048010974 [2024-11-09 06:51:31,188 INFO L175 Difference]: Start difference. First operand has 161 places, 159 transitions, 330 flow. Second operand 9 states and 1330 transitions. [2024-11-09 06:51:31,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 167 transitions, 394 flow [2024-11-09 06:51:31,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 167 transitions, 392 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:51:31,195 INFO L231 Difference]: Finished difference. Result has 171 places, 165 transitions, 378 flow [2024-11-09 06:51:31,195 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=378, PETRI_PLACES=171, PETRI_TRANSITIONS=165} [2024-11-09 06:51:31,196 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 12 predicate places. [2024-11-09 06:51:31,197 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 165 transitions, 378 flow [2024-11-09 06:51:31,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 147.0) internal successors, (1470), 10 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:31,198 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:31,199 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:31,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:51:31,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:31,400 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:31,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:31,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1842992485, now seen corresponding path program 2 times [2024-11-09 06:51:31,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:31,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128660138] [2024-11-09 06:51:31,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:31,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:31,697 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:31,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:31,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128660138] [2024-11-09 06:51:31,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128660138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:31,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49525654] [2024-11-09 06:51:31,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:51:31,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:31,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:31,706 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) [2024-11-09 06:51:31,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:51:31,809 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:51:31,810 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:51:31,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:51:31,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:31,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 06:51:31,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-09 06:51:31,939 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:51:31,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-09 06:51:31,987 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:51:31,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-09 06:51:32,022 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 06:51:32,023 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:51:32,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49525654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:32,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:51:32,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-09 06:51:32,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79817553] [2024-11-09 06:51:32,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:32,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:51:32,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:32,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:51:32,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:32,150 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 162 [2024-11-09 06:51:32,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 165 transitions, 378 flow. Second operand has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:32,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:32,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 162 [2024-11-09 06:51:32,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:32,340 INFO L124 PetriNetUnfolderBase]: 150/840 cut-off events. [2024-11-09 06:51:32,341 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-09 06:51:32,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1168 conditions, 840 events. 150/840 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4704 event pairs, 62 based on Foata normal form. 0/781 useless extension candidates. Maximal degree in co-relation 1057. Up to 240 conditions per place. [2024-11-09 06:51:32,346 INFO L140 encePairwiseOnDemand]: 151/162 looper letters, 30 selfloop transitions, 22 changer transitions 0/194 dead transitions. [2024-11-09 06:51:32,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 194 transitions, 540 flow [2024-11-09 06:51:32,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:51:32,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:51:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 869 transitions. [2024-11-09 06:51:32,350 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8940329218106996 [2024-11-09 06:51:32,350 INFO L175 Difference]: Start difference. First operand has 171 places, 165 transitions, 378 flow. Second operand 6 states and 869 transitions. [2024-11-09 06:51:32,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 194 transitions, 540 flow [2024-11-09 06:51:32,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 194 transitions, 534 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-09 06:51:32,357 INFO L231 Difference]: Finished difference. Result has 180 places, 186 transitions, 522 flow [2024-11-09 06:51:32,358 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=522, PETRI_PLACES=180, PETRI_TRANSITIONS=186} [2024-11-09 06:51:32,359 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 21 predicate places. [2024-11-09 06:51:32,359 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 186 transitions, 522 flow [2024-11-09 06:51:32,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:32,362 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:32,362 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:32,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:51:32,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-09 06:51:32,567 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:32,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:32,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1999671179, now seen corresponding path program 1 times [2024-11-09 06:51:32,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:32,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672084447] [2024-11-09 06:51:32,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:32,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:32,744 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:32,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:32,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672084447] [2024-11-09 06:51:32,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672084447] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:32,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25741444] [2024-11-09 06:51:32,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:32,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:32,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:32,749 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) [2024-11-09 06:51:32,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:51:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:32,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:51:32,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:32,900 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:32,900 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:51:33,006 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:33,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25741444] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:51:33,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:51:33,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-09 06:51:33,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435194801] [2024-11-09 06:51:33,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:51:33,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 06:51:33,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:33,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 06:51:33,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-09 06:51:33,050 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 162 [2024-11-09 06:51:33,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 186 transitions, 522 flow. Second operand has 18 states, 18 states have (on average 147.0) internal successors, (2646), 18 states have internal predecessors, (2646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:33,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:33,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 162 [2024-11-09 06:51:33,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:33,306 INFO L124 PetriNetUnfolderBase]: 61/586 cut-off events. [2024-11-09 06:51:33,307 INFO L125 PetriNetUnfolderBase]: For 50/53 co-relation queries the response was YES. [2024-11-09 06:51:33,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 881 conditions, 586 events. 61/586 cut-off events. For 50/53 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2312 event pairs, 11 based on Foata normal form. 4/556 useless extension candidates. Maximal degree in co-relation 693. Up to 63 conditions per place. [2024-11-09 06:51:33,311 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 18 selfloop transitions, 21 changer transitions 0/204 dead transitions. [2024-11-09 06:51:33,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 204 transitions, 688 flow [2024-11-09 06:51:33,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 06:51:33,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-09 06:51:33,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3088 transitions. [2024-11-09 06:51:33,318 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9077013521457966 [2024-11-09 06:51:33,318 INFO L175 Difference]: Start difference. First operand has 180 places, 186 transitions, 522 flow. Second operand 21 states and 3088 transitions. [2024-11-09 06:51:33,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 204 transitions, 688 flow [2024-11-09 06:51:33,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 204 transitions, 688 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:33,325 INFO L231 Difference]: Finished difference. Result has 205 places, 199 transitions, 652 flow [2024-11-09 06:51:33,325 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=652, PETRI_PLACES=205, PETRI_TRANSITIONS=199} [2024-11-09 06:51:33,326 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 46 predicate places. [2024-11-09 06:51:33,326 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 199 transitions, 652 flow [2024-11-09 06:51:33,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 147.0) internal successors, (2646), 18 states have internal predecessors, (2646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:33,329 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:33,329 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:33,346 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 06:51:33,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:33,530 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:33,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:33,531 INFO L85 PathProgramCache]: Analyzing trace with hash -104290187, now seen corresponding path program 2 times [2024-11-09 06:51:33,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:33,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616424946] [2024-11-09 06:51:33,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:33,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:33,909 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:33,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:33,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616424946] [2024-11-09 06:51:33,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616424946] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:33,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608446871] [2024-11-09 06:51:33,913 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:51:33,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:33,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:33,917 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) [2024-11-09 06:51:33,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:51:34,010 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:51:34,010 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:51:34,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 06:51:34,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:34,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 06:51:34,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-09 06:51:34,077 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:51:34,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-09 06:51:34,112 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:51:34,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-09 06:51:34,144 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 06:51:34,145 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:51:34,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608446871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:34,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:51:34,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-09 06:51:34,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032572503] [2024-11-09 06:51:34,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:34,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:51:34,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:34,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:51:34,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-09 06:51:34,310 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 162 [2024-11-09 06:51:34,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 199 transitions, 652 flow. Second operand has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:34,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:34,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 162 [2024-11-09 06:51:34,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:34,559 INFO L124 PetriNetUnfolderBase]: 206/1098 cut-off events. [2024-11-09 06:51:34,560 INFO L125 PetriNetUnfolderBase]: For 231/251 co-relation queries the response was YES. [2024-11-09 06:51:34,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1886 conditions, 1098 events. 206/1098 cut-off events. For 231/251 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6544 event pairs, 62 based on Foata normal form. 5/1041 useless extension candidates. Maximal degree in co-relation 1691. Up to 330 conditions per place. [2024-11-09 06:51:34,567 INFO L140 encePairwiseOnDemand]: 151/162 looper letters, 47 selfloop transitions, 30 changer transitions 0/236 dead transitions. [2024-11-09 06:51:34,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 236 transitions, 922 flow [2024-11-09 06:51:34,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:51:34,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:51:34,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 869 transitions. [2024-11-09 06:51:34,569 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8940329218106996 [2024-11-09 06:51:34,570 INFO L175 Difference]: Start difference. First operand has 205 places, 199 transitions, 652 flow. Second operand 6 states and 869 transitions. [2024-11-09 06:51:34,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 236 transitions, 922 flow [2024-11-09 06:51:34,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 236 transitions, 898 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-09 06:51:34,577 INFO L231 Difference]: Finished difference. Result has 209 places, 228 transitions, 878 flow [2024-11-09 06:51:34,577 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=878, PETRI_PLACES=209, PETRI_TRANSITIONS=228} [2024-11-09 06:51:34,578 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 50 predicate places. [2024-11-09 06:51:34,578 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 228 transitions, 878 flow [2024-11-09 06:51:34,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:34,579 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:34,579 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:34,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 06:51:34,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:34,784 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:34,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:34,785 INFO L85 PathProgramCache]: Analyzing trace with hash 170209770, now seen corresponding path program 1 times [2024-11-09 06:51:34,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:34,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906083536] [2024-11-09 06:51:34,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:34,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:35,173 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:35,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:35,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906083536] [2024-11-09 06:51:35,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906083536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:35,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105230621] [2024-11-09 06:51:35,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:35,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:35,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:35,177 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) [2024-11-09 06:51:35,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:51:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:35,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:51:35,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:35,381 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:51:35,605 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:35,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105230621] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:51:35,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:51:35,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-09 06:51:35,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711906797] [2024-11-09 06:51:35,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:51:35,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 06:51:35,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:35,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 06:51:35,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-09 06:51:35,652 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 162 [2024-11-09 06:51:35,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 228 transitions, 878 flow. Second operand has 23 states, 23 states have (on average 147.08695652173913) internal successors, (3383), 23 states have internal predecessors, (3383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:35,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:35,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 162 [2024-11-09 06:51:35,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:36,098 INFO L124 PetriNetUnfolderBase]: 117/846 cut-off events. [2024-11-09 06:51:36,098 INFO L125 PetriNetUnfolderBase]: For 365/378 co-relation queries the response was YES. [2024-11-09 06:51:36,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1585 conditions, 846 events. 117/846 cut-off events. For 365/378 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4358 event pairs, 14 based on Foata normal form. 8/817 useless extension candidates. Maximal degree in co-relation 1309. Up to 84 conditions per place. [2024-11-09 06:51:36,103 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 21 selfloop transitions, 30 changer transitions 0/245 dead transitions. [2024-11-09 06:51:36,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 245 transitions, 1102 flow [2024-11-09 06:51:36,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 06:51:36,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-09 06:51:36,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4404 transitions. [2024-11-09 06:51:36,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9061728395061729 [2024-11-09 06:51:36,112 INFO L175 Difference]: Start difference. First operand has 209 places, 228 transitions, 878 flow. Second operand 30 states and 4404 transitions. [2024-11-09 06:51:36,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 245 transitions, 1102 flow [2024-11-09 06:51:36,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 245 transitions, 1102 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:36,120 INFO L231 Difference]: Finished difference. Result has 242 places, 238 transitions, 1030 flow [2024-11-09 06:51:36,121 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=878, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1030, PETRI_PLACES=242, PETRI_TRANSITIONS=238} [2024-11-09 06:51:36,122 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 83 predicate places. [2024-11-09 06:51:36,122 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 238 transitions, 1030 flow [2024-11-09 06:51:36,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 147.08695652173913) internal successors, (3383), 23 states have internal predecessors, (3383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:36,123 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:36,123 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:36,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 06:51:36,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:36,328 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:36,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:36,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1618788682, now seen corresponding path program 2 times [2024-11-09 06:51:36,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:36,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347402319] [2024-11-09 06:51:36,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:36,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:36,879 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:36,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:36,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347402319] [2024-11-09 06:51:36,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347402319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:36,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:36,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:51:36,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424975024] [2024-11-09 06:51:36,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:36,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:51:36,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:36,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:51:36,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:51:36,976 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 162 [2024-11-09 06:51:36,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 238 transitions, 1030 flow. Second operand has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:36,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:36,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 162 [2024-11-09 06:51:36,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:37,376 INFO L124 PetriNetUnfolderBase]: 422/1653 cut-off events. [2024-11-09 06:51:37,376 INFO L125 PetriNetUnfolderBase]: For 1031/1073 co-relation queries the response was YES. [2024-11-09 06:51:37,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3663 conditions, 1653 events. 422/1653 cut-off events. For 1031/1073 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 10530 event pairs, 107 based on Foata normal form. 12/1574 useless extension candidates. Maximal degree in co-relation 3386. Up to 718 conditions per place. [2024-11-09 06:51:37,389 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 76 selfloop transitions, 57 changer transitions 0/293 dead transitions. [2024-11-09 06:51:37,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 293 transitions, 1540 flow [2024-11-09 06:51:37,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:51:37,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:51:37,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 855 transitions. [2024-11-09 06:51:37,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8796296296296297 [2024-11-09 06:51:37,392 INFO L175 Difference]: Start difference. First operand has 242 places, 238 transitions, 1030 flow. Second operand 6 states and 855 transitions. [2024-11-09 06:51:37,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 293 transitions, 1540 flow [2024-11-09 06:51:37,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 293 transitions, 1494 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-09 06:51:37,403 INFO L231 Difference]: Finished difference. Result has 234 places, 285 transitions, 1482 flow [2024-11-09 06:51:37,403 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=984, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1482, PETRI_PLACES=234, PETRI_TRANSITIONS=285} [2024-11-09 06:51:37,405 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 75 predicate places. [2024-11-09 06:51:37,405 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 285 transitions, 1482 flow [2024-11-09 06:51:37,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:37,406 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:37,406 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:37,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:51:37,406 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:37,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:37,407 INFO L85 PathProgramCache]: Analyzing trace with hash 883185170, now seen corresponding path program 1 times [2024-11-09 06:51:37,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:37,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070452587] [2024-11-09 06:51:37,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:37,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:37,926 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:37,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:37,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070452587] [2024-11-09 06:51:37,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070452587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:37,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:37,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:51:37,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032551616] [2024-11-09 06:51:37,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:37,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:51:37,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:37,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:51:37,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:51:38,014 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 162 [2024-11-09 06:51:38,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 285 transitions, 1482 flow. Second operand has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:38,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:38,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 162 [2024-11-09 06:51:38,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:38,497 INFO L124 PetriNetUnfolderBase]: 542/2093 cut-off events. [2024-11-09 06:51:38,497 INFO L125 PetriNetUnfolderBase]: For 2465/2523 co-relation queries the response was YES. [2024-11-09 06:51:38,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5260 conditions, 2093 events. 542/2093 cut-off events. For 2465/2523 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 14550 event pairs, 113 based on Foata normal form. 13/2020 useless extension candidates. Maximal degree in co-relation 5000. Up to 894 conditions per place. [2024-11-09 06:51:38,519 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 113 selfloop transitions, 71 changer transitions 0/346 dead transitions. [2024-11-09 06:51:38,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 346 transitions, 2204 flow [2024-11-09 06:51:38,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:51:38,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:51:38,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 855 transitions. [2024-11-09 06:51:38,522 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8796296296296297 [2024-11-09 06:51:38,522 INFO L175 Difference]: Start difference. First operand has 234 places, 285 transitions, 1482 flow. Second operand 6 states and 855 transitions. [2024-11-09 06:51:38,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 346 transitions, 2204 flow [2024-11-09 06:51:38,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 346 transitions, 2140 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:38,542 INFO L231 Difference]: Finished difference. Result has 244 places, 338 transitions, 2094 flow [2024-11-09 06:51:38,543 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=1424, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2094, PETRI_PLACES=244, PETRI_TRANSITIONS=338} [2024-11-09 06:51:38,546 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 85 predicate places. [2024-11-09 06:51:38,546 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 338 transitions, 2094 flow [2024-11-09 06:51:38,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:38,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:38,547 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:38,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:51:38,547 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:38,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:38,548 INFO L85 PathProgramCache]: Analyzing trace with hash -448336135, now seen corresponding path program 1 times [2024-11-09 06:51:38,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:38,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672049660] [2024-11-09 06:51:38,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:38,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:39,137 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:39,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:39,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672049660] [2024-11-09 06:51:39,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672049660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:39,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:39,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:51:39,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620148343] [2024-11-09 06:51:39,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:39,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:51:39,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:39,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:51:39,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:51:40,245 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-09 06:51:40,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 338 transitions, 2094 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:40,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:40,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-09 06:51:40,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:41,285 INFO L124 PetriNetUnfolderBase]: 1065/4194 cut-off events. [2024-11-09 06:51:41,286 INFO L125 PetriNetUnfolderBase]: For 5704/5837 co-relation queries the response was YES. [2024-11-09 06:51:41,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11555 conditions, 4194 events. 1065/4194 cut-off events. For 5704/5837 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 33520 event pairs, 161 based on Foata normal form. 43/4211 useless extension candidates. Maximal degree in co-relation 11278. Up to 580 conditions per place. [2024-11-09 06:51:41,323 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 65 selfloop transitions, 15 changer transitions 6/397 dead transitions. [2024-11-09 06:51:41,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 397 transitions, 2384 flow [2024-11-09 06:51:41,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:51:41,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:51:41,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1277 transitions. [2024-11-09 06:51:41,327 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8758573388203018 [2024-11-09 06:51:41,328 INFO L175 Difference]: Start difference. First operand has 244 places, 338 transitions, 2094 flow. Second operand 9 states and 1277 transitions. [2024-11-09 06:51:41,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 397 transitions, 2384 flow [2024-11-09 06:51:41,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 397 transitions, 2302 flow, removed 41 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:41,373 INFO L231 Difference]: Finished difference. Result has 259 places, 353 transitions, 2130 flow [2024-11-09 06:51:41,373 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2012, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2130, PETRI_PLACES=259, PETRI_TRANSITIONS=353} [2024-11-09 06:51:41,374 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 100 predicate places. [2024-11-09 06:51:41,374 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 353 transitions, 2130 flow [2024-11-09 06:51:41,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:41,375 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:41,375 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:41,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:51:41,375 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:41,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:41,376 INFO L85 PathProgramCache]: Analyzing trace with hash -869332119, now seen corresponding path program 2 times [2024-11-09 06:51:41,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:41,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145155126] [2024-11-09 06:51:41,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:41,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:41,963 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:41,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:41,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145155126] [2024-11-09 06:51:41,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145155126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:41,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:41,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:51:41,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636652885] [2024-11-09 06:51:41,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:41,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:51:41,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:41,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:51:41,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:51:43,092 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-09 06:51:43,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 353 transitions, 2130 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:43,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:43,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-09 06:51:43,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:45,287 INFO L124 PetriNetUnfolderBase]: 2043/7592 cut-off events. [2024-11-09 06:51:45,287 INFO L125 PetriNetUnfolderBase]: For 11092/11371 co-relation queries the response was YES. [2024-11-09 06:51:45,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22329 conditions, 7592 events. 2043/7592 cut-off events. For 11092/11371 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 68088 event pairs, 273 based on Foata normal form. 87/7625 useless extension candidates. Maximal degree in co-relation 22044. Up to 1199 conditions per place. [2024-11-09 06:51:45,362 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 110 selfloop transitions, 20 changer transitions 3/444 dead transitions. [2024-11-09 06:51:45,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 444 transitions, 2796 flow [2024-11-09 06:51:45,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:51:45,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:51:45,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1276 transitions. [2024-11-09 06:51:45,366 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8751714677640604 [2024-11-09 06:51:45,366 INFO L175 Difference]: Start difference. First operand has 259 places, 353 transitions, 2130 flow. Second operand 9 states and 1276 transitions. [2024-11-09 06:51:45,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 444 transitions, 2796 flow [2024-11-09 06:51:45,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 444 transitions, 2796 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:45,426 INFO L231 Difference]: Finished difference. Result has 274 places, 370 transitions, 2310 flow [2024-11-09 06:51:45,427 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2130, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2310, PETRI_PLACES=274, PETRI_TRANSITIONS=370} [2024-11-09 06:51:45,427 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 115 predicate places. [2024-11-09 06:51:45,428 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 370 transitions, 2310 flow [2024-11-09 06:51:45,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:45,428 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:45,429 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:45,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:51:45,429 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:45,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:45,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1700604081, now seen corresponding path program 3 times [2024-11-09 06:51:45,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:45,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478417613] [2024-11-09 06:51:45,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:45,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:45,911 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:45,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:45,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478417613] [2024-11-09 06:51:45,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478417613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:45,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:45,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:51:45,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285157995] [2024-11-09 06:51:45,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:45,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:51:45,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:45,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:51:45,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:51:47,141 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-09 06:51:47,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 370 transitions, 2310 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:47,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:47,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-09 06:51:47,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:49,061 INFO L124 PetriNetUnfolderBase]: 2340/8634 cut-off events. [2024-11-09 06:51:49,062 INFO L125 PetriNetUnfolderBase]: For 14725/15140 co-relation queries the response was YES. [2024-11-09 06:51:49,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26701 conditions, 8634 events. 2340/8634 cut-off events. For 14725/15140 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 78796 event pairs, 290 based on Foata normal form. 92/8667 useless extension candidates. Maximal degree in co-relation 26408. Up to 1316 conditions per place. [2024-11-09 06:51:49,133 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 117 selfloop transitions, 22 changer transitions 4/454 dead transitions. [2024-11-09 06:51:49,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 454 transitions, 3094 flow [2024-11-09 06:51:49,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:51:49,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:51:49,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1281 transitions. [2024-11-09 06:51:49,137 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8786008230452675 [2024-11-09 06:51:49,138 INFO L175 Difference]: Start difference. First operand has 274 places, 370 transitions, 2310 flow. Second operand 9 states and 1281 transitions. [2024-11-09 06:51:49,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 454 transitions, 3094 flow [2024-11-09 06:51:49,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 454 transitions, 3056 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:49,224 INFO L231 Difference]: Finished difference. Result has 287 places, 382 transitions, 2479 flow [2024-11-09 06:51:49,225 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2296, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2479, PETRI_PLACES=287, PETRI_TRANSITIONS=382} [2024-11-09 06:51:49,225 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 128 predicate places. [2024-11-09 06:51:49,225 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 382 transitions, 2479 flow [2024-11-09 06:51:49,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:49,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:49,226 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:49,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:51:49,227 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:49,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:49,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1977146507, now seen corresponding path program 4 times [2024-11-09 06:51:49,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:49,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280169365] [2024-11-09 06:51:49,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:49,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:49,781 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:49,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:49,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280169365] [2024-11-09 06:51:49,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280169365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:49,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:49,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:51:49,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164045839] [2024-11-09 06:51:49,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:49,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:51:49,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:49,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:51:49,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:51:50,865 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-09 06:51:50,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 382 transitions, 2479 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:50,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:50,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-09 06:51:50,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:52,794 INFO L124 PetriNetUnfolderBase]: 2637/9651 cut-off events. [2024-11-09 06:51:52,794 INFO L125 PetriNetUnfolderBase]: For 18643/19086 co-relation queries the response was YES. [2024-11-09 06:51:52,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30570 conditions, 9651 events. 2637/9651 cut-off events. For 18643/19086 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 90120 event pairs, 292 based on Foata normal form. 107/9691 useless extension candidates. Maximal degree in co-relation 30271. Up to 1577 conditions per place. [2024-11-09 06:51:52,867 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 132 selfloop transitions, 27 changer transitions 2/472 dead transitions. [2024-11-09 06:51:52,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 472 transitions, 3428 flow [2024-11-09 06:51:52,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:51:52,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:51:52,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1281 transitions. [2024-11-09 06:51:52,869 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8786008230452675 [2024-11-09 06:51:52,869 INFO L175 Difference]: Start difference. First operand has 287 places, 382 transitions, 2479 flow. Second operand 9 states and 1281 transitions. [2024-11-09 06:51:52,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 472 transitions, 3428 flow [2024-11-09 06:51:52,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 472 transitions, 3349 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-09 06:51:52,968 INFO L231 Difference]: Finished difference. Result has 297 places, 394 transitions, 2655 flow [2024-11-09 06:51:52,969 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2453, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2655, PETRI_PLACES=297, PETRI_TRANSITIONS=394} [2024-11-09 06:51:52,970 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 138 predicate places. [2024-11-09 06:51:52,970 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 394 transitions, 2655 flow [2024-11-09 06:51:52,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:52,971 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:52,971 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:52,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 06:51:52,972 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:52,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:52,972 INFO L85 PathProgramCache]: Analyzing trace with hash -945444439, now seen corresponding path program 5 times [2024-11-09 06:51:52,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:52,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607931221] [2024-11-09 06:51:52,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:52,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:53,524 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:53,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:53,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607931221] [2024-11-09 06:51:53,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607931221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:53,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:53,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:51:53,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972408693] [2024-11-09 06:51:53,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:53,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:51:53,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:53,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:51:53,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:51:54,679 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-09 06:51:54,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 394 transitions, 2655 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:54,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:54,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-09 06:51:54,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:57,221 INFO L124 PetriNetUnfolderBase]: 2967/10860 cut-off events. [2024-11-09 06:51:57,222 INFO L125 PetriNetUnfolderBase]: For 23517/24084 co-relation queries the response was YES. [2024-11-09 06:51:57,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35144 conditions, 10860 events. 2967/10860 cut-off events. For 23517/24084 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 104246 event pairs, 320 based on Foata normal form. 101/10883 useless extension candidates. Maximal degree in co-relation 34840. Up to 1710 conditions per place. [2024-11-09 06:51:57,322 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 133 selfloop transitions, 29 changer transitions 2/475 dead transitions. [2024-11-09 06:51:57,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 475 transitions, 3634 flow [2024-11-09 06:51:57,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:51:57,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:51:57,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1284 transitions. [2024-11-09 06:51:57,324 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8806584362139918 [2024-11-09 06:51:57,324 INFO L175 Difference]: Start difference. First operand has 297 places, 394 transitions, 2655 flow. Second operand 9 states and 1284 transitions. [2024-11-09 06:51:57,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 475 transitions, 3634 flow [2024-11-09 06:51:57,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 475 transitions, 3543 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-11-09 06:51:57,452 INFO L231 Difference]: Finished difference. Result has 308 places, 409 transitions, 2893 flow [2024-11-09 06:51:57,453 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2614, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2893, PETRI_PLACES=308, PETRI_TRANSITIONS=409} [2024-11-09 06:51:57,454 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 149 predicate places. [2024-11-09 06:51:57,454 INFO L471 AbstractCegarLoop]: Abstraction has has 308 places, 409 transitions, 2893 flow [2024-11-09 06:51:57,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:57,455 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:57,456 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:57,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:51:57,456 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:57,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:57,456 INFO L85 PathProgramCache]: Analyzing trace with hash -998215493, now seen corresponding path program 6 times [2024-11-09 06:51:57,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:57,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233500015] [2024-11-09 06:51:57,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:57,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:57,976 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:57,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:57,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233500015] [2024-11-09 06:51:57,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233500015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:57,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:57,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:51:57,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846805008] [2024-11-09 06:51:57,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:57,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:51:57,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:57,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:51:57,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:51:58,897 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-09 06:51:58,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 409 transitions, 2893 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:58,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:58,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-09 06:51:58,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:01,434 INFO L124 PetriNetUnfolderBase]: 3289/11996 cut-off events. [2024-11-09 06:52:01,434 INFO L125 PetriNetUnfolderBase]: For 29684/30279 co-relation queries the response was YES. [2024-11-09 06:52:01,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39697 conditions, 11996 events. 3289/11996 cut-off events. For 29684/30279 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 118019 event pairs, 326 based on Foata normal form. 108/12019 useless extension candidates. Maximal degree in co-relation 39387. Up to 1963 conditions per place. [2024-11-09 06:52:01,529 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 149 selfloop transitions, 34 changer transitions 1/495 dead transitions. [2024-11-09 06:52:01,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 495 transitions, 4017 flow [2024-11-09 06:52:01,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:01,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:01,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1284 transitions. [2024-11-09 06:52:01,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8806584362139918 [2024-11-09 06:52:01,532 INFO L175 Difference]: Start difference. First operand has 308 places, 409 transitions, 2893 flow. Second operand 9 states and 1284 transitions. [2024-11-09 06:52:01,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 495 transitions, 4017 flow [2024-11-09 06:52:01,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 495 transitions, 3921 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-09 06:52:01,701 INFO L231 Difference]: Finished difference. Result has 320 places, 424 transitions, 3136 flow [2024-11-09 06:52:01,703 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2834, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3136, PETRI_PLACES=320, PETRI_TRANSITIONS=424} [2024-11-09 06:52:01,704 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 161 predicate places. [2024-11-09 06:52:01,704 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 424 transitions, 3136 flow [2024-11-09 06:52:01,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:01,706 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:01,706 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:01,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:52:01,707 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:52:01,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:01,707 INFO L85 PathProgramCache]: Analyzing trace with hash 139229261, now seen corresponding path program 7 times [2024-11-09 06:52:01,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:01,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686347255] [2024-11-09 06:52:01,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:01,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:02,093 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:02,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:02,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686347255] [2024-11-09 06:52:02,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686347255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:02,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:02,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:02,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109856640] [2024-11-09 06:52:02,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:02,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:02,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:02,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:02,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:03,177 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-09 06:52:03,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 424 transitions, 3136 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:03,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:03,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-09 06:52:03,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:05,860 INFO L124 PetriNetUnfolderBase]: 3633/13230 cut-off events. [2024-11-09 06:52:05,860 INFO L125 PetriNetUnfolderBase]: For 37931/38570 co-relation queries the response was YES. [2024-11-09 06:52:05,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44950 conditions, 13230 events. 3633/13230 cut-off events. For 37931/38570 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 133161 event pairs, 413 based on Foata normal form. 100/13230 useless extension candidates. Maximal degree in co-relation 44634. Up to 2106 conditions per place. [2024-11-09 06:52:05,972 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 148 selfloop transitions, 36 changer transitions 0/495 dead transitions. [2024-11-09 06:52:05,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 495 transitions, 4233 flow [2024-11-09 06:52:05,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:05,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:05,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1286 transitions. [2024-11-09 06:52:05,974 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8820301783264746 [2024-11-09 06:52:05,975 INFO L175 Difference]: Start difference. First operand has 320 places, 424 transitions, 3136 flow. Second operand 9 states and 1286 transitions. [2024-11-09 06:52:05,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 495 transitions, 4233 flow [2024-11-09 06:52:06,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 495 transitions, 4133 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-09 06:52:06,144 INFO L231 Difference]: Finished difference. Result has 333 places, 443 transitions, 3486 flow [2024-11-09 06:52:06,145 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=3058, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3486, PETRI_PLACES=333, PETRI_TRANSITIONS=443} [2024-11-09 06:52:06,145 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 174 predicate places. [2024-11-09 06:52:06,145 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 443 transitions, 3486 flow [2024-11-09 06:52:06,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:06,146 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:06,146 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:06,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 06:52:06,146 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:52:06,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:06,147 INFO L85 PathProgramCache]: Analyzing trace with hash -344748101, now seen corresponding path program 8 times [2024-11-09 06:52:06,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:06,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644164680] [2024-11-09 06:52:06,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:06,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:06,667 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:06,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:06,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644164680] [2024-11-09 06:52:06,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644164680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:06,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:06,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:06,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353045487] [2024-11-09 06:52:06,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:06,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:06,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:06,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:06,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:07,134 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-09 06:52:07,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 443 transitions, 3486 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:07,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:07,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-09 06:52:07,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:10,287 INFO L124 PetriNetUnfolderBase]: 4229/15229 cut-off events. [2024-11-09 06:52:10,288 INFO L125 PetriNetUnfolderBase]: For 49021/49911 co-relation queries the response was YES. [2024-11-09 06:52:10,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52767 conditions, 15229 events. 4229/15229 cut-off events. For 49021/49911 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 159022 event pairs, 427 based on Foata normal form. 127/15244 useless extension candidates. Maximal degree in co-relation 52444. Up to 2514 conditions per place. [2024-11-09 06:52:10,430 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 169 selfloop transitions, 45 changer transitions 0/525 dead transitions. [2024-11-09 06:52:10,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 525 transitions, 4789 flow [2024-11-09 06:52:10,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:10,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:10,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1288 transitions. [2024-11-09 06:52:10,432 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8834019204389575 [2024-11-09 06:52:10,432 INFO L175 Difference]: Start difference. First operand has 333 places, 443 transitions, 3486 flow. Second operand 9 states and 1288 transitions. [2024-11-09 06:52:10,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 525 transitions, 4789 flow [2024-11-09 06:52:10,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 525 transitions, 4685 flow, removed 52 selfloop flow, removed 0 redundant places. [2024-11-09 06:52:10,642 INFO L231 Difference]: Finished difference. Result has 348 places, 461 transitions, 3838 flow [2024-11-09 06:52:10,643 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=3382, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3838, PETRI_PLACES=348, PETRI_TRANSITIONS=461} [2024-11-09 06:52:10,643 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 189 predicate places. [2024-11-09 06:52:10,643 INFO L471 AbstractCegarLoop]: Abstraction has has 348 places, 461 transitions, 3838 flow [2024-11-09 06:52:10,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:10,644 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:10,644 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:10,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 06:52:10,644 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:52:10,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:10,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1733159267, now seen corresponding path program 9 times [2024-11-09 06:52:10,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:10,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713179832] [2024-11-09 06:52:10,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:10,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:11,254 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:11,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:11,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713179832] [2024-11-09 06:52:11,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713179832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:11,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:11,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:11,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448552773] [2024-11-09 06:52:11,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:11,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:11,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:11,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:11,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:11,731 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-09 06:52:11,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 461 transitions, 3838 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:11,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:11,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-09 06:52:11,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:15,202 INFO L124 PetriNetUnfolderBase]: 4818/17260 cut-off events. [2024-11-09 06:52:15,202 INFO L125 PetriNetUnfolderBase]: For 60755/61725 co-relation queries the response was YES. [2024-11-09 06:52:15,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61007 conditions, 17260 events. 4818/17260 cut-off events. For 60755/61725 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 186285 event pairs, 476 based on Foata normal form. 140/17277 useless extension candidates. Maximal degree in co-relation 60676. Up to 2857 conditions per place. [2024-11-09 06:52:15,342 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 184 selfloop transitions, 46 changer transitions 0/541 dead transitions. [2024-11-09 06:52:15,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 541 transitions, 5096 flow [2024-11-09 06:52:15,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:15,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:15,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1288 transitions. [2024-11-09 06:52:15,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8834019204389575 [2024-11-09 06:52:15,344 INFO L175 Difference]: Start difference. First operand has 348 places, 461 transitions, 3838 flow. Second operand 9 states and 1288 transitions. [2024-11-09 06:52:15,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 541 transitions, 5096 flow [2024-11-09 06:52:15,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 541 transitions, 5010 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-09 06:52:15,784 INFO L231 Difference]: Finished difference. Result has 362 places, 478 transitions, 4161 flow [2024-11-09 06:52:15,785 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=3752, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4161, PETRI_PLACES=362, PETRI_TRANSITIONS=478} [2024-11-09 06:52:15,785 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 203 predicate places. [2024-11-09 06:52:15,785 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 478 transitions, 4161 flow [2024-11-09 06:52:15,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:15,786 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:15,786 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:15,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 06:52:15,786 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:52:15,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:15,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1581331279, now seen corresponding path program 10 times [2024-11-09 06:52:15,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:15,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063581531] [2024-11-09 06:52:15,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:15,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:16,150 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:16,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:16,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063581531] [2024-11-09 06:52:16,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063581531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:16,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:16,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:16,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035737778] [2024-11-09 06:52:16,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:16,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:16,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:16,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:16,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:17,040 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-09 06:52:17,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 478 transitions, 4161 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:17,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:17,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-09 06:52:17,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:21,232 INFO L124 PetriNetUnfolderBase]: 5106/18204 cut-off events. [2024-11-09 06:52:21,232 INFO L125 PetriNetUnfolderBase]: For 69118/70153 co-relation queries the response was YES. [2024-11-09 06:52:21,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65251 conditions, 18204 events. 5106/18204 cut-off events. For 69118/70153 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 198930 event pairs, 505 based on Foata normal form. 161/18239 useless extension candidates. Maximal degree in co-relation 64913. Up to 3031 conditions per place. [2024-11-09 06:52:21,386 INFO L140 encePairwiseOnDemand]: 146/162 looper letters, 183 selfloop transitions, 53 changer transitions 0/547 dead transitions. [2024-11-09 06:52:21,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 547 transitions, 5463 flow [2024-11-09 06:52:21,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:21,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:21,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1290 transitions. [2024-11-09 06:52:21,388 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8847736625514403 [2024-11-09 06:52:21,388 INFO L175 Difference]: Start difference. First operand has 362 places, 478 transitions, 4161 flow. Second operand 9 states and 1290 transitions. [2024-11-09 06:52:21,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 547 transitions, 5463 flow [2024-11-09 06:52:21,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 547 transitions, 5310 flow, removed 57 selfloop flow, removed 2 redundant places. [2024-11-09 06:52:21,676 INFO L231 Difference]: Finished difference. Result has 372 places, 492 transitions, 4440 flow [2024-11-09 06:52:21,676 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=4064, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4440, PETRI_PLACES=372, PETRI_TRANSITIONS=492} [2024-11-09 06:52:21,677 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 213 predicate places. [2024-11-09 06:52:21,677 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 492 transitions, 4440 flow [2024-11-09 06:52:21,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:21,677 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:21,678 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:21,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 06:52:21,678 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:52:21,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:21,678 INFO L85 PathProgramCache]: Analyzing trace with hash -870785091, now seen corresponding path program 11 times [2024-11-09 06:52:21,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:21,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697966347] [2024-11-09 06:52:21,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:21,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:22,033 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:22,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:22,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697966347] [2024-11-09 06:52:22,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697966347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:22,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:22,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:22,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133127613] [2024-11-09 06:52:22,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:22,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:22,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:22,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:22,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:22,692 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-09 06:52:22,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 492 transitions, 4440 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:22,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:22,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-09 06:52:22,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:27,000 INFO L124 PetriNetUnfolderBase]: 5112/18202 cut-off events. [2024-11-09 06:52:27,000 INFO L125 PetriNetUnfolderBase]: For 74043/75069 co-relation queries the response was YES. [2024-11-09 06:52:27,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65959 conditions, 18202 events. 5112/18202 cut-off events. For 74043/75069 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 198903 event pairs, 506 based on Foata normal form. 169/18240 useless extension candidates. Maximal degree in co-relation 65617. Up to 3039 conditions per place. [2024-11-09 06:52:27,152 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 186 selfloop transitions, 57 changer transitions 0/554 dead transitions. [2024-11-09 06:52:27,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 554 transitions, 5666 flow [2024-11-09 06:52:27,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:27,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:27,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1291 transitions. [2024-11-09 06:52:27,154 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8854595336076817 [2024-11-09 06:52:27,154 INFO L175 Difference]: Start difference. First operand has 372 places, 492 transitions, 4440 flow. Second operand 9 states and 1291 transitions. [2024-11-09 06:52:27,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 554 transitions, 5666 flow [2024-11-09 06:52:27,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 554 transitions, 5506 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-11-09 06:52:27,443 INFO L231 Difference]: Finished difference. Result has 381 places, 504 transitions, 4710 flow [2024-11-09 06:52:27,444 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=4304, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=492, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4710, PETRI_PLACES=381, PETRI_TRANSITIONS=504} [2024-11-09 06:52:27,444 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 222 predicate places. [2024-11-09 06:52:27,444 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 504 transitions, 4710 flow [2024-11-09 06:52:27,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:27,445 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:27,445 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:27,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 06:52:27,445 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:52:27,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:27,445 INFO L85 PathProgramCache]: Analyzing trace with hash -54689603, now seen corresponding path program 12 times [2024-11-09 06:52:27,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:27,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884413975] [2024-11-09 06:52:27,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:27,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:27,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:27,777 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:27,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:27,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884413975] [2024-11-09 06:52:27,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884413975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:27,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:27,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:27,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343424218] [2024-11-09 06:52:27,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:27,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:27,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:27,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:27,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:28,419 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-09 06:52:28,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 504 transitions, 4710 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:28,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:28,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-09 06:52:28,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:32,466 INFO L124 PetriNetUnfolderBase]: 5106/18206 cut-off events. [2024-11-09 06:52:32,466 INFO L125 PetriNetUnfolderBase]: For 78291/79430 co-relation queries the response was YES. [2024-11-09 06:52:32,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66433 conditions, 18206 events. 5106/18206 cut-off events. For 78291/79430 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 198988 event pairs, 501 based on Foata normal form. 165/18239 useless extension candidates. Maximal degree in co-relation 66086. Up to 3035 conditions per place. [2024-11-09 06:52:32,928 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 198 selfloop transitions, 52 changer transitions 0/561 dead transitions. [2024-11-09 06:52:32,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 561 transitions, 5914 flow [2024-11-09 06:52:32,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:52:32,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:52:32,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1294 transitions. [2024-11-09 06:52:32,930 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.887517146776406 [2024-11-09 06:52:32,930 INFO L175 Difference]: Start difference. First operand has 381 places, 504 transitions, 4710 flow. Second operand 9 states and 1294 transitions. [2024-11-09 06:52:32,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 561 transitions, 5914 flow [2024-11-09 06:52:33,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 561 transitions, 5704 flow, removed 75 selfloop flow, removed 3 redundant places. [2024-11-09 06:52:33,250 INFO L231 Difference]: Finished difference. Result has 390 places, 512 transitions, 4848 flow [2024-11-09 06:52:33,250 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=4574, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4848, PETRI_PLACES=390, PETRI_TRANSITIONS=512} [2024-11-09 06:52:33,251 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 231 predicate places. [2024-11-09 06:52:33,251 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 512 transitions, 4848 flow [2024-11-09 06:52:33,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:33,251 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:33,252 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:33,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 06:52:33,252 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:52:33,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:33,252 INFO L85 PathProgramCache]: Analyzing trace with hash 2014276001, now seen corresponding path program 13 times [2024-11-09 06:52:33,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:33,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404160715] [2024-11-09 06:52:33,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:33,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:33,561 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:33,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:33,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404160715] [2024-11-09 06:52:33,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404160715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:33,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:33,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:52:33,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645112992] [2024-11-09 06:52:33,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:33,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:52:33,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:33,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:52:33,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:52:34,121 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-09 06:52:34,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 512 transitions, 4848 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:34,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:34,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-09 06:52:34,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand