/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/parallel-misc-2-unrolled.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 05:30:48,168 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 05:30:48,208 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 05:30:48,215 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 05:30:48,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 05:30:48,245 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 05:30:48,245 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 05:30:48,246 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 05:30:48,246 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 05:30:48,246 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 05:30:48,246 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 05:30:48,247 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 05:30:48,247 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 05:30:48,247 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 05:30:48,247 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 05:30:48,247 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 05:30:48,248 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 05:30:48,248 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 05:30:48,248 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 05:30:48,248 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 05:30:48,249 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 05:30:48,249 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 05:30:48,249 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 05:30:48,249 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 05:30:48,250 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 05:30:48,250 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 05:30:48,250 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 05:30:48,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:30:48,251 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 05:30:48,251 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 05:30:48,251 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 05:30:48,251 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 05:30:48,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 05:30:48,252 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 05:30:48,252 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 05:30:48,252 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 05:30:48,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 05:30:48,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 05:30:48,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 05:30:48,474 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 05:30:48,475 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 05:30:48,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-2-unrolled.wvr.c [2023-08-25 05:30:49,494 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 05:30:49,675 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 05:30:49,676 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-2-unrolled.wvr.c [2023-08-25 05:30:49,684 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/707e7e644/e9a5583c340b46f8a83477a2d2cd4ffd/FLAG8dec79a35 [2023-08-25 05:30:49,697 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/707e7e644/e9a5583c340b46f8a83477a2d2cd4ffd [2023-08-25 05:30:49,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 05:30:49,702 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 05:30:49,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 05:30:49,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 05:30:49,706 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 05:30:49,707 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:30:49" (1/1) ... [2023-08-25 05:30:49,707 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46e6a21b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:49, skipping insertion in model container [2023-08-25 05:30:49,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:30:49" (1/1) ... [2023-08-25 05:30:49,722 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 05:30:49,857 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:30:49,865 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 05:30:49,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:30:49,900 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 05:30:49,900 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 05:30:49,904 INFO L206 MainTranslator]: Completed translation [2023-08-25 05:30:49,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:49 WrapperNode [2023-08-25 05:30:49,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 05:30:49,905 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 05:30:49,906 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 05:30:49,906 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 05:30:49,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:49" (1/1) ... [2023-08-25 05:30:49,923 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:49" (1/1) ... [2023-08-25 05:30:49,940 INFO L138 Inliner]: procedures = 20, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 112 [2023-08-25 05:30:49,941 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 05:30:49,941 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 05:30:49,941 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 05:30:49,942 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 05:30:49,947 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:49" (1/1) ... [2023-08-25 05:30:49,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:49" (1/1) ... [2023-08-25 05:30:49,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:49" (1/1) ... [2023-08-25 05:30:49,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:49" (1/1) ... [2023-08-25 05:30:49,965 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:49" (1/1) ... [2023-08-25 05:30:49,967 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:49" (1/1) ... [2023-08-25 05:30:49,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:49" (1/1) ... [2023-08-25 05:30:49,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:49" (1/1) ... [2023-08-25 05:30:49,970 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 05:30:49,971 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 05:30:49,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 05:30:49,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 05:30:49,971 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:49" (1/1) ... [2023-08-25 05:30:49,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:30:49,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:30:49,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 05:30:50,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 05:30:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 05:30:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 05:30:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 05:30:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 05:30:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 05:30:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 05:30:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 05:30:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 05:30:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 05:30:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 05:30:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 05:30:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 05:30:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 05:30:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 05:30:50,029 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 05:30:50,112 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 05:30:50,113 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 05:30:50,396 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 05:30:50,431 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 05:30:50,432 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-25 05:30:50,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:30:50 BoogieIcfgContainer [2023-08-25 05:30:50,433 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 05:30:50,435 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 05:30:50,435 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 05:30:50,441 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 05:30:50,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:30:49" (1/3) ... [2023-08-25 05:30:50,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0db2c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:30:50, skipping insertion in model container [2023-08-25 05:30:50,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:30:49" (2/3) ... [2023-08-25 05:30:50,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0db2c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:30:50, skipping insertion in model container [2023-08-25 05:30:50,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:30:50" (3/3) ... [2023-08-25 05:30:50,443 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled.wvr.c [2023-08-25 05:30:50,454 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 05:30:50,454 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-08-25 05:30:50,454 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 05:30:50,503 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 05:30:50,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 207 places, 208 transitions, 432 flow [2023-08-25 05:30:50,594 INFO L124 PetriNetUnfolderBase]: 8/206 cut-off events. [2023-08-25 05:30:50,594 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 05:30:50,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 206 events. 8/206 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 312 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 128. Up to 2 conditions per place. [2023-08-25 05:30:50,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 207 places, 208 transitions, 432 flow [2023-08-25 05:30:50,604 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 196 places, 197 transitions, 406 flow [2023-08-25 05:30:50,606 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 05:30:50,611 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 196 places, 197 transitions, 406 flow [2023-08-25 05:30:50,613 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 196 places, 197 transitions, 406 flow [2023-08-25 05:30:50,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 196 places, 197 transitions, 406 flow [2023-08-25 05:30:50,636 INFO L124 PetriNetUnfolderBase]: 8/197 cut-off events. [2023-08-25 05:30:50,636 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 05:30:50,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 197 events. 8/197 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 312 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 128. Up to 2 conditions per place. [2023-08-25 05:30:50,639 INFO L119 LiptonReduction]: Number of co-enabled transitions 5616 [2023-08-25 05:30:54,865 INFO L134 LiptonReduction]: Checked pairs total: 15387 [2023-08-25 05:30:54,865 INFO L136 LiptonReduction]: Total number of compositions: 255 [2023-08-25 05:30:54,875 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 05:30:54,879 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@726aba05, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 05:30:54,879 INFO L358 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2023-08-25 05:30:54,880 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 05:30:54,880 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 05:30:54,880 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 05:30:54,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:54,881 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 05:30:54,881 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-25 05:30:54,883 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:54,884 INFO L85 PathProgramCache]: Analyzing trace with hash 869, now seen corresponding path program 1 times [2023-08-25 05:30:54,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:54,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861598719] [2023-08-25 05:30:54,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:54,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:54,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:30:54,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:54,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861598719] [2023-08-25 05:30:54,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861598719] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:30:54,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:30:54,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 05:30:54,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242504895] [2023-08-25 05:30:54,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:30:54,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 05:30:54,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:54,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 05:30:54,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 05:30:54,966 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 463 [2023-08-25 05:30:54,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 53 transitions, 118 flow. Second operand has 2 states, 2 states have (on average 187.5) internal successors, (375), 2 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:54,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:54,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 463 [2023-08-25 05:30:54,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:30:55,034 INFO L124 PetriNetUnfolderBase]: 65/134 cut-off events. [2023-08-25 05:30:55,034 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-25 05:30:55,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 134 events. 65/134 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 444 event pairs, 45 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 218. Up to 117 conditions per place. [2023-08-25 05:30:55,036 INFO L140 encePairwiseOnDemand]: 431/463 looper letters, 17 selfloop transitions, 0 changer transitions 0/21 dead transitions. [2023-08-25 05:30:55,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 21 transitions, 88 flow [2023-08-25 05:30:55,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 05:30:55,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 05:30:55,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 423 transitions. [2023-08-25 05:30:55,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45680345572354214 [2023-08-25 05:30:55,046 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 423 transitions. [2023-08-25 05:30:55,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 423 transitions. [2023-08-25 05:30:55,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:30:55,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 423 transitions. [2023-08-25 05:30:55,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 463.0) internal successors, (1389), 3 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,056 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 463.0) internal successors, (1389), 3 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,057 INFO L175 Difference]: Start difference. First operand has 56 places, 53 transitions, 118 flow. Second operand 2 states and 423 transitions. [2023-08-25 05:30:55,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 21 transitions, 88 flow [2023-08-25 05:30:55,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 80 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 05:30:55,061 INFO L231 Difference]: Finished difference. Result has 23 places, 21 transitions, 46 flow [2023-08-25 05:30:55,062 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=46, PETRI_PLACES=23, PETRI_TRANSITIONS=21} [2023-08-25 05:30:55,066 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -33 predicate places. [2023-08-25 05:30:55,066 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 21 transitions, 46 flow [2023-08-25 05:30:55,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 187.5) internal successors, (375), 2 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,066 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:55,067 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 05:30:55,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 05:30:55,067 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-25 05:30:55,068 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:55,068 INFO L85 PathProgramCache]: Analyzing trace with hash 26778041, now seen corresponding path program 1 times [2023-08-25 05:30:55,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:55,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561393527] [2023-08-25 05:30:55,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:55,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:55,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:30:55,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:55,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561393527] [2023-08-25 05:30:55,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561393527] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:30:55,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:30:55,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:30:55,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283620484] [2023-08-25 05:30:55,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:30:55,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:30:55,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:55,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:30:55,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:30:55,140 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 463 [2023-08-25 05:30:55,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 21 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:55,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 463 [2023-08-25 05:30:55,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:30:55,189 INFO L124 PetriNetUnfolderBase]: 101/178 cut-off events. [2023-08-25 05:30:55,189 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 05:30:55,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 178 events. 101/178 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 522 event pairs, 32 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 363. Up to 173 conditions per place. [2023-08-25 05:30:55,190 INFO L140 encePairwiseOnDemand]: 459/463 looper letters, 22 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2023-08-25 05:30:55,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 24 transitions, 101 flow [2023-08-25 05:30:55,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:30:55,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:30:55,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2023-08-25 05:30:55,195 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4031677465802736 [2023-08-25 05:30:55,195 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 560 transitions. [2023-08-25 05:30:55,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 560 transitions. [2023-08-25 05:30:55,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:30:55,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 560 transitions. [2023-08-25 05:30:55,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,202 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,202 INFO L175 Difference]: Start difference. First operand has 23 places, 21 transitions, 46 flow. Second operand 3 states and 560 transitions. [2023-08-25 05:30:55,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 24 transitions, 101 flow [2023-08-25 05:30:55,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 24 transitions, 101 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:30:55,203 INFO L231 Difference]: Finished difference. Result has 24 places, 21 transitions, 56 flow [2023-08-25 05:30:55,203 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=24, PETRI_TRANSITIONS=21} [2023-08-25 05:30:55,204 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -32 predicate places. [2023-08-25 05:30:55,205 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 21 transitions, 56 flow [2023-08-25 05:30:55,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:55,205 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:30:55,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 05:30:55,208 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-25 05:30:55,210 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:55,210 INFO L85 PathProgramCache]: Analyzing trace with hash 454438028, now seen corresponding path program 1 times [2023-08-25 05:30:55,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:55,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814509014] [2023-08-25 05:30:55,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:55,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:55,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:30:55,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:55,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814509014] [2023-08-25 05:30:55,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814509014] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:30:55,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:30:55,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 05:30:55,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099499721] [2023-08-25 05:30:55,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:30:55,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:30:55,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:55,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:30:55,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:30:55,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 463 [2023-08-25 05:30:55,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 21 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:55,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 463 [2023-08-25 05:30:55,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:30:55,437 INFO L124 PetriNetUnfolderBase]: 104/202 cut-off events. [2023-08-25 05:30:55,437 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-08-25 05:30:55,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 202 events. 104/202 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 643 event pairs, 20 based on Foata normal form. 1/202 useless extension candidates. Maximal degree in co-relation 438. Up to 131 conditions per place. [2023-08-25 05:30:55,438 INFO L140 encePairwiseOnDemand]: 459/463 looper letters, 27 selfloop transitions, 3 changer transitions 1/33 dead transitions. [2023-08-25 05:30:55,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 33 transitions, 149 flow [2023-08-25 05:30:55,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:30:55,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:30:55,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 573 transitions. [2023-08-25 05:30:55,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41252699784017277 [2023-08-25 05:30:55,440 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 573 transitions. [2023-08-25 05:30:55,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 573 transitions. [2023-08-25 05:30:55,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:30:55,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 573 transitions. [2023-08-25 05:30:55,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,444 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 463.0) internal successors, (1852), 4 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,444 INFO L175 Difference]: Start difference. First operand has 24 places, 21 transitions, 56 flow. Second operand 3 states and 573 transitions. [2023-08-25 05:30:55,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 33 transitions, 149 flow [2023-08-25 05:30:55,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 33 transitions, 149 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:30:55,445 INFO L231 Difference]: Finished difference. Result has 27 places, 23 transitions, 75 flow [2023-08-25 05:30:55,445 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=27, PETRI_TRANSITIONS=23} [2023-08-25 05:30:55,445 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -29 predicate places. [2023-08-25 05:30:55,445 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 23 transitions, 75 flow [2023-08-25 05:30:55,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,446 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:55,446 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:30:55,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 05:30:55,446 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-25 05:30:55,446 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:55,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1120087099, now seen corresponding path program 1 times [2023-08-25 05:30:55,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:55,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224341425] [2023-08-25 05:30:55,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:55,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:55,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:30:55,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:55,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224341425] [2023-08-25 05:30:55,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224341425] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:30:55,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:30:55,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:30:55,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85524076] [2023-08-25 05:30:55,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:30:55,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:30:55,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:55,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:30:55,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:30:55,575 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 463 [2023-08-25 05:30:55,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 75 flow. Second operand has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:55,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 463 [2023-08-25 05:30:55,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:30:55,695 INFO L124 PetriNetUnfolderBase]: 116/226 cut-off events. [2023-08-25 05:30:55,696 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2023-08-25 05:30:55,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 226 events. 116/226 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 778 event pairs, 15 based on Foata normal form. 2/227 useless extension candidates. Maximal degree in co-relation 541. Up to 87 conditions per place. [2023-08-25 05:30:55,698 INFO L140 encePairwiseOnDemand]: 456/463 looper letters, 36 selfloop transitions, 10 changer transitions 4/52 dead transitions. [2023-08-25 05:30:55,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 52 transitions, 255 flow [2023-08-25 05:30:55,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:30:55,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:30:55,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 883 transitions. [2023-08-25 05:30:55,702 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38142548596112313 [2023-08-25 05:30:55,702 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 883 transitions. [2023-08-25 05:30:55,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 883 transitions. [2023-08-25 05:30:55,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:30:55,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 883 transitions. [2023-08-25 05:30:55,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 176.6) internal successors, (883), 5 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,710 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,710 INFO L175 Difference]: Start difference. First operand has 27 places, 23 transitions, 75 flow. Second operand 5 states and 883 transitions. [2023-08-25 05:30:55,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 52 transitions, 255 flow [2023-08-25 05:30:55,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 52 transitions, 251 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:30:55,713 INFO L231 Difference]: Finished difference. Result has 32 places, 31 transitions, 137 flow [2023-08-25 05:30:55,713 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=137, PETRI_PLACES=32, PETRI_TRANSITIONS=31} [2023-08-25 05:30:55,714 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -24 predicate places. [2023-08-25 05:30:55,714 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 31 transitions, 137 flow [2023-08-25 05:30:55,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:55,715 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:30:55,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 05:30:55,715 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-25 05:30:55,716 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:55,716 INFO L85 PathProgramCache]: Analyzing trace with hash 236316549, now seen corresponding path program 2 times [2023-08-25 05:30:55,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:55,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437749053] [2023-08-25 05:30:55,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:55,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:55,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:30:55,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:55,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437749053] [2023-08-25 05:30:55,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437749053] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:30:55,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:30:55,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:30:55,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560366028] [2023-08-25 05:30:55,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:30:55,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:30:55,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:55,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:30:55,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:30:55,823 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 463 [2023-08-25 05:30:55,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 31 transitions, 137 flow. Second operand has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:55,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 463 [2023-08-25 05:30:55,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:30:55,939 INFO L124 PetriNetUnfolderBase]: 139/275 cut-off events. [2023-08-25 05:30:55,939 INFO L125 PetriNetUnfolderBase]: For 205/205 co-relation queries the response was YES. [2023-08-25 05:30:55,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 788 conditions, 275 events. 139/275 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1038 event pairs, 18 based on Foata normal form. 12/286 useless extension candidates. Maximal degree in co-relation 780. Up to 126 conditions per place. [2023-08-25 05:30:55,943 INFO L140 encePairwiseOnDemand]: 457/463 looper letters, 39 selfloop transitions, 9 changer transitions 3/53 dead transitions. [2023-08-25 05:30:55,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 53 transitions, 312 flow [2023-08-25 05:30:55,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:30:55,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:30:55,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 881 transitions. [2023-08-25 05:30:55,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38056155507559397 [2023-08-25 05:30:55,945 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 881 transitions. [2023-08-25 05:30:55,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 881 transitions. [2023-08-25 05:30:55,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:30:55,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 881 transitions. [2023-08-25 05:30:55,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 176.2) internal successors, (881), 5 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,952 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,952 INFO L175 Difference]: Start difference. First operand has 32 places, 31 transitions, 137 flow. Second operand 5 states and 881 transitions. [2023-08-25 05:30:55,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 53 transitions, 312 flow [2023-08-25 05:30:55,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 53 transitions, 312 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:30:55,956 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 179 flow [2023-08-25 05:30:55,957 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=179, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2023-08-25 05:30:55,958 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -18 predicate places. [2023-08-25 05:30:55,959 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 179 flow [2023-08-25 05:30:55,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:55,959 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:55,959 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:30:55,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 05:30:55,960 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-25 05:30:55,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:55,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1808058285, now seen corresponding path program 1 times [2023-08-25 05:30:55,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:55,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771691541] [2023-08-25 05:30:55,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:55,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:56,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:30:56,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:56,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771691541] [2023-08-25 05:30:56,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771691541] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:30:56,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:30:56,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:30:56,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150117510] [2023-08-25 05:30:56,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:30:56,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:30:56,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:56,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:30:56,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:30:56,043 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 463 [2023-08-25 05:30:56,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:56,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 463 [2023-08-25 05:30:56,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:30:56,132 INFO L124 PetriNetUnfolderBase]: 143/281 cut-off events. [2023-08-25 05:30:56,132 INFO L125 PetriNetUnfolderBase]: For 393/397 co-relation queries the response was YES. [2023-08-25 05:30:56,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 281 events. 143/281 cut-off events. For 393/397 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1032 event pairs, 15 based on Foata normal form. 8/288 useless extension candidates. Maximal degree in co-relation 901. Up to 174 conditions per place. [2023-08-25 05:30:56,134 INFO L140 encePairwiseOnDemand]: 456/463 looper letters, 39 selfloop transitions, 9 changer transitions 6/56 dead transitions. [2023-08-25 05:30:56,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 56 transitions, 368 flow [2023-08-25 05:30:56,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:30:56,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:30:56,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 879 transitions. [2023-08-25 05:30:56,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3796976241900648 [2023-08-25 05:30:56,136 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 879 transitions. [2023-08-25 05:30:56,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 879 transitions. [2023-08-25 05:30:56,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:30:56,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 879 transitions. [2023-08-25 05:30:56,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 175.8) internal successors, (879), 5 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,141 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,141 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 179 flow. Second operand 5 states and 879 transitions. [2023-08-25 05:30:56,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 56 transitions, 368 flow [2023-08-25 05:30:56,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 56 transitions, 356 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-25 05:30:56,143 INFO L231 Difference]: Finished difference. Result has 42 places, 36 transitions, 214 flow [2023-08-25 05:30:56,143 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=214, PETRI_PLACES=42, PETRI_TRANSITIONS=36} [2023-08-25 05:30:56,144 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -14 predicate places. [2023-08-25 05:30:56,144 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 36 transitions, 214 flow [2023-08-25 05:30:56,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:56,144 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:30:56,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 05:30:56,145 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-25 05:30:56,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:56,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1716462719, now seen corresponding path program 2 times [2023-08-25 05:30:56,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:56,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269492358] [2023-08-25 05:30:56,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:56,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:56,191 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:30:56,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:56,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269492358] [2023-08-25 05:30:56,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269492358] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:30:56,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:30:56,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:30:56,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611006777] [2023-08-25 05:30:56,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:30:56,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:30:56,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:56,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:30:56,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:30:56,194 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 463 [2023-08-25 05:30:56,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 36 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:56,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 463 [2023-08-25 05:30:56,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:30:56,278 INFO L124 PetriNetUnfolderBase]: 151/292 cut-off events. [2023-08-25 05:30:56,278 INFO L125 PetriNetUnfolderBase]: For 524/524 co-relation queries the response was YES. [2023-08-25 05:30:56,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1019 conditions, 292 events. 151/292 cut-off events. For 524/524 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 991 event pairs, 21 based on Foata normal form. 10/301 useless extension candidates. Maximal degree in co-relation 1006. Up to 203 conditions per place. [2023-08-25 05:30:56,280 INFO L140 encePairwiseOnDemand]: 457/463 looper letters, 39 selfloop transitions, 8 changer transitions 0/49 dead transitions. [2023-08-25 05:30:56,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 49 transitions, 359 flow [2023-08-25 05:30:56,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:30:56,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:30:56,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 872 transitions. [2023-08-25 05:30:56,282 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37667386609071274 [2023-08-25 05:30:56,282 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 872 transitions. [2023-08-25 05:30:56,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 872 transitions. [2023-08-25 05:30:56,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:30:56,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 872 transitions. [2023-08-25 05:30:56,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 174.4) internal successors, (872), 5 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,286 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,286 INFO L175 Difference]: Start difference. First operand has 42 places, 36 transitions, 214 flow. Second operand 5 states and 872 transitions. [2023-08-25 05:30:56,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 49 transitions, 359 flow [2023-08-25 05:30:56,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 49 transitions, 351 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-08-25 05:30:56,288 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 246 flow [2023-08-25 05:30:56,288 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=246, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2023-08-25 05:30:56,289 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -8 predicate places. [2023-08-25 05:30:56,289 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 246 flow [2023-08-25 05:30:56,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:56,290 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:30:56,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 05:30:56,291 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-25 05:30:56,291 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:56,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1705559524, now seen corresponding path program 1 times [2023-08-25 05:30:56,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:56,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193473416] [2023-08-25 05:30:56,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:56,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:56,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-25 05:30:56,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:56,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193473416] [2023-08-25 05:30:56,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193473416] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:30:56,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:30:56,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:30:56,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305178489] [2023-08-25 05:30:56,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:30:56,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:30:56,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:56,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:30:56,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:30:56,467 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 463 [2023-08-25 05:30:56,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 246 flow. Second operand has 5 states, 5 states have (on average 184.4) internal successors, (922), 5 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:56,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 463 [2023-08-25 05:30:56,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:30:56,557 INFO L124 PetriNetUnfolderBase]: 208/405 cut-off events. [2023-08-25 05:30:56,557 INFO L125 PetriNetUnfolderBase]: For 1033/1033 co-relation queries the response was YES. [2023-08-25 05:30:56,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1513 conditions, 405 events. 208/405 cut-off events. For 1033/1033 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1569 event pairs, 78 based on Foata normal form. 1/405 useless extension candidates. Maximal degree in co-relation 1497. Up to 160 conditions per place. [2023-08-25 05:30:56,559 INFO L140 encePairwiseOnDemand]: 457/463 looper letters, 31 selfloop transitions, 17 changer transitions 17/67 dead transitions. [2023-08-25 05:30:56,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 67 transitions, 553 flow [2023-08-25 05:30:56,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:30:56,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:30:56,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 947 transitions. [2023-08-25 05:30:56,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4090712742980562 [2023-08-25 05:30:56,561 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 947 transitions. [2023-08-25 05:30:56,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 947 transitions. [2023-08-25 05:30:56,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:30:56,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 947 transitions. [2023-08-25 05:30:56,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 189.4) internal successors, (947), 5 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,566 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,566 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 246 flow. Second operand 5 states and 947 transitions. [2023-08-25 05:30:56,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 67 transitions, 553 flow [2023-08-25 05:30:56,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 67 transitions, 528 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-08-25 05:30:56,569 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 333 flow [2023-08-25 05:30:56,569 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=333, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2023-08-25 05:30:56,569 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2023-08-25 05:30:56,570 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 333 flow [2023-08-25 05:30:56,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 184.4) internal successors, (922), 5 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:56,570 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:30:56,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 05:30:56,570 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-25 05:30:56,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:56,571 INFO L85 PathProgramCache]: Analyzing trace with hash 703931846, now seen corresponding path program 2 times [2023-08-25 05:30:56,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:56,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095611637] [2023-08-25 05:30:56,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:56,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:56,679 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:30:56,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:56,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095611637] [2023-08-25 05:30:56,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095611637] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:30:56,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172104954] [2023-08-25 05:30:56,680 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 05:30:56,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:30:56,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:30:56,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:30:56,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 05:30:56,790 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 05:30:56,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:30:56,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 14 conjunts are in the unsatisfiable core [2023-08-25 05:30:56,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:30:56,843 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:30:56,843 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:30:56,882 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:30:56,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172104954] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:30:56,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:30:56,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2023-08-25 05:30:56,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150024189] [2023-08-25 05:30:56,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:30:56,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:30:56,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:56,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:30:56,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:30:56,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 463 [2023-08-25 05:30:56,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 333 flow. Second operand has 5 states, 5 states have (on average 184.4) internal successors, (922), 5 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:56,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 463 [2023-08-25 05:30:56,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:30:56,983 INFO L124 PetriNetUnfolderBase]: 226/439 cut-off events. [2023-08-25 05:30:56,983 INFO L125 PetriNetUnfolderBase]: For 1641/1641 co-relation queries the response was YES. [2023-08-25 05:30:56,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1863 conditions, 439 events. 226/439 cut-off events. For 1641/1641 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1737 event pairs, 70 based on Foata normal form. 1/439 useless extension candidates. Maximal degree in co-relation 1844. Up to 253 conditions per place. [2023-08-25 05:30:56,986 INFO L140 encePairwiseOnDemand]: 457/463 looper letters, 43 selfloop transitions, 16 changer transitions 5/66 dead transitions. [2023-08-25 05:30:56,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 66 transitions, 629 flow [2023-08-25 05:30:56,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:30:56,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:30:56,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 943 transitions. [2023-08-25 05:30:56,988 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40734341252699785 [2023-08-25 05:30:56,988 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 943 transitions. [2023-08-25 05:30:56,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 943 transitions. [2023-08-25 05:30:56,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:30:56,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 943 transitions. [2023-08-25 05:30:56,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 188.6) internal successors, (943), 5 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,992 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 463.0) internal successors, (2778), 6 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,993 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 333 flow. Second operand 5 states and 943 transitions. [2023-08-25 05:30:56,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 66 transitions, 629 flow [2023-08-25 05:30:56,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 66 transitions, 591 flow, removed 15 selfloop flow, removed 2 redundant places. [2023-08-25 05:30:56,996 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 460 flow [2023-08-25 05:30:56,997 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=460, PETRI_PLACES=58, PETRI_TRANSITIONS=50} [2023-08-25 05:30:56,997 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 2 predicate places. [2023-08-25 05:30:56,997 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 460 flow [2023-08-25 05:30:56,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 184.4) internal successors, (922), 5 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:56,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:30:56,998 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:30:57,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 05:30:57,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:30:57,208 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-08-25 05:30:57,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:30:57,208 INFO L85 PathProgramCache]: Analyzing trace with hash 82166610, now seen corresponding path program 3 times [2023-08-25 05:30:57,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:30:57,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427814404] [2023-08-25 05:30:57,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:30:57,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:30:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:30:57,326 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 05:30:57,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:30:57,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427814404] [2023-08-25 05:30:57,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427814404] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:30:57,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692265081] [2023-08-25 05:30:57,327 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 05:30:57,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:30:57,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:30:57,328 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:30:57,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 05:30:57,413 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 05:30:57,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:30:57,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 14 conjunts are in the unsatisfiable core [2023-08-25 05:30:57,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:30:57,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 05:30:57,452 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:30:57,487 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 05:30:57,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692265081] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:30:57,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:30:57,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2023-08-25 05:30:57,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876955317] [2023-08-25 05:30:57,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:30:57,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:30:57,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:30:57,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:30:57,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:30:57,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 463 [2023-08-25 05:30:57,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 50 transitions, 460 flow. Second operand has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:57,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:30:57,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 463 [2023-08-25 05:30:57,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:30:57,601 INFO L124 PetriNetUnfolderBase]: 223/441 cut-off events. [2023-08-25 05:30:57,602 INFO L125 PetriNetUnfolderBase]: For 1929/1929 co-relation queries the response was YES. [2023-08-25 05:30:57,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1957 conditions, 441 events. 223/441 cut-off events. For 1929/1929 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1827 event pairs, 78 based on Foata normal form. 1/441 useless extension candidates. Maximal degree in co-relation 1934. Up to 242 conditions per place. [2023-08-25 05:30:57,603 INFO L140 encePairwiseOnDemand]: 457/463 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2023-08-25 05:30:57,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 64 transitions, 666 flow [2023-08-25 05:30:57,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:30:57,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:30:57,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1118 transitions. [2023-08-25 05:30:57,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40244780417566595 [2023-08-25 05:30:57,606 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1118 transitions. [2023-08-25 05:30:57,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1118 transitions. [2023-08-25 05:30:57,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:30:57,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1118 transitions. [2023-08-25 05:30:57,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 186.33333333333334) internal successors, (1118), 6 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:57,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 463.0) internal successors, (3241), 7 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:57,611 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 463.0) internal successors, (3241), 7 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:57,611 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 460 flow. Second operand 6 states and 1118 transitions. [2023-08-25 05:30:57,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 64 transitions, 666 flow [2023-08-25 05:30:57,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 64 transitions, 650 flow, removed 8 selfloop flow, removed 0 redundant places. [2023-08-25 05:30:57,615 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2023-08-25 05:30:57,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2023-08-25 05:30:57,615 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 6 predicate places. [2023-08-25 05:30:57,615 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2023-08-25 05:30:57,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:30:57,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (54 of 55 remaining) [2023-08-25 05:30:57,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (53 of 55 remaining) [2023-08-25 05:30:57,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (52 of 55 remaining) [2023-08-25 05:30:57,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (51 of 55 remaining) [2023-08-25 05:30:57,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (50 of 55 remaining) [2023-08-25 05:30:57,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (49 of 55 remaining) [2023-08-25 05:30:57,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (48 of 55 remaining) [2023-08-25 05:30:57,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (47 of 55 remaining) [2023-08-25 05:30:57,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (46 of 55 remaining) [2023-08-25 05:30:57,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (45 of 55 remaining) [2023-08-25 05:30:57,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (44 of 55 remaining) [2023-08-25 05:30:57,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (43 of 55 remaining) [2023-08-25 05:30:57,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (42 of 55 remaining) [2023-08-25 05:30:57,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (41 of 55 remaining) [2023-08-25 05:30:57,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (40 of 55 remaining) [2023-08-25 05:30:57,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (39 of 55 remaining) [2023-08-25 05:30:57,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (38 of 55 remaining) [2023-08-25 05:30:57,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (37 of 55 remaining) [2023-08-25 05:30:57,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (36 of 55 remaining) [2023-08-25 05:30:57,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (35 of 55 remaining) [2023-08-25 05:30:57,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 55 remaining) [2023-08-25 05:30:57,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 55 remaining) [2023-08-25 05:30:57,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 55 remaining) [2023-08-25 05:30:57,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 55 remaining) [2023-08-25 05:30:57,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 55 remaining) [2023-08-25 05:30:57,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 55 remaining) [2023-08-25 05:30:57,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 55 remaining) [2023-08-25 05:30:57,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 55 remaining) [2023-08-25 05:30:57,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (26 of 55 remaining) [2023-08-25 05:30:57,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (25 of 55 remaining) [2023-08-25 05:30:57,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (24 of 55 remaining) [2023-08-25 05:30:57,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (23 of 55 remaining) [2023-08-25 05:30:57,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONASSERT (22 of 55 remaining) [2023-08-25 05:30:57,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 55 remaining) [2023-08-25 05:30:57,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 55 remaining) [2023-08-25 05:30:57,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (19 of 55 remaining) [2023-08-25 05:30:57,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (18 of 55 remaining) [2023-08-25 05:30:57,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (17 of 55 remaining) [2023-08-25 05:30:57,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (16 of 55 remaining) [2023-08-25 05:30:57,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (15 of 55 remaining) [2023-08-25 05:30:57,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (14 of 55 remaining) [2023-08-25 05:30:57,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (13 of 55 remaining) [2023-08-25 05:30:57,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (12 of 55 remaining) [2023-08-25 05:30:57,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (11 of 55 remaining) [2023-08-25 05:30:57,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (10 of 55 remaining) [2023-08-25 05:30:57,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (9 of 55 remaining) [2023-08-25 05:30:57,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (8 of 55 remaining) [2023-08-25 05:30:57,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (7 of 55 remaining) [2023-08-25 05:30:57,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (6 of 55 remaining) [2023-08-25 05:30:57,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (5 of 55 remaining) [2023-08-25 05:30:57,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (4 of 55 remaining) [2023-08-25 05:30:57,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (3 of 55 remaining) [2023-08-25 05:30:57,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (2 of 55 remaining) [2023-08-25 05:30:57,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (1 of 55 remaining) [2023-08-25 05:30:57,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (0 of 55 remaining) [2023-08-25 05:30:57,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 05:30:57,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-08-25 05:30:57,832 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1] [2023-08-25 05:30:57,835 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 05:30:57,835 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 05:30:57,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:30:57 BasicIcfg [2023-08-25 05:30:57,837 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 05:30:57,838 INFO L158 Benchmark]: Toolchain (without parser) took 8135.07ms. Allocated memory was 371.2MB in the beginning and 480.2MB in the end (delta: 109.1MB). Free memory was 348.3MB in the beginning and 298.7MB in the end (delta: 49.7MB). Peak memory consumption was 159.2MB. Max. memory is 16.0GB. [2023-08-25 05:30:57,838 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 371.2MB. Free memory is still 348.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 05:30:57,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.85ms. Allocated memory is still 371.2MB. Free memory was 347.8MB in the beginning and 336.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-25 05:30:57,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.32ms. Allocated memory is still 371.2MB. Free memory was 336.8MB in the beginning and 334.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 05:30:57,838 INFO L158 Benchmark]: Boogie Preprocessor took 29.08ms. Allocated memory is still 371.2MB. Free memory was 334.7MB in the beginning and 333.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 05:30:57,838 INFO L158 Benchmark]: RCFGBuilder took 462.88ms. Allocated memory is still 371.2MB. Free memory was 333.1MB in the beginning and 309.6MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-25 05:30:57,839 INFO L158 Benchmark]: TraceAbstraction took 7402.35ms. Allocated memory was 371.2MB in the beginning and 480.2MB in the end (delta: 109.1MB). Free memory was 309.0MB in the beginning and 298.7MB in the end (delta: 10.3MB). Peak memory consumption was 121.5MB. Max. memory is 16.0GB. [2023-08-25 05:30:57,839 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 371.2MB. Free memory is still 348.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 200.85ms. Allocated memory is still 371.2MB. Free memory was 347.8MB in the beginning and 336.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 35.32ms. Allocated memory is still 371.2MB. Free memory was 336.8MB in the beginning and 334.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.08ms. Allocated memory is still 371.2MB. Free memory was 334.7MB in the beginning and 333.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 462.88ms. Allocated memory is still 371.2MB. Free memory was 333.1MB in the beginning and 309.6MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 7402.35ms. Allocated memory was 371.2MB in the beginning and 480.2MB in the end (delta: 109.1MB). Free memory was 309.0MB in the beginning and 298.7MB in the end (delta: 10.3MB). Peak memory consumption was 121.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3s, 196 PlacesBefore, 56 PlacesAfterwards, 197 TransitionsBefore, 53 TransitionsAfterwards, 5616 CoEnabledTransitionPairs, 10 FixpointIterations, 119 TrivialSequentialCompositions, 112 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 7 ConcurrentYvCompositions, 4 ChoiceCompositions, 255 TotalNumberOfCompositions, 15387 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8995, independent: 8579, independent conditional: 0, independent unconditional: 8579, dependent: 416, dependent conditional: 0, dependent unconditional: 416, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3331, independent: 3272, independent conditional: 0, independent unconditional: 3272, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8995, independent: 5307, independent conditional: 0, independent unconditional: 5307, dependent: 357, dependent conditional: 0, dependent unconditional: 357, unknown: 3331, unknown conditional: 0, unknown unconditional: 3331] , Statistics on independence cache: Total cache size (in pairs): 295, Positive cache size: 267, Positive conditional cache size: 0, Positive unconditional cache size: 267, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 40]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 40]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 279 locations, 55 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.3s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 110 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 644 IncrementalHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 0 mSDtfsCounter, 644 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 86 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=460occurred in iteration=9, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 219 ConstructedInterpolants, 0 QuantifiedInterpolants, 1816 SizeOfPredicates, 0 NumberOfNonLiveVariables, 380 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 27/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 33 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 05:30:57,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...