/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread/stack_longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 07:51:17,300 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 07:51:17,390 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 07:51:17,395 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 07:51:17,396 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 07:51:17,428 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 07:51:17,429 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 07:51:17,429 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 07:51:17,430 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 07:51:17,434 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 07:51:17,434 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 07:51:17,434 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 07:51:17,435 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 07:51:17,436 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 07:51:17,436 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 07:51:17,436 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 07:51:17,436 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 07:51:17,437 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 07:51:17,437 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 07:51:17,437 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 07:51:17,437 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 07:51:17,438 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 07:51:17,438 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 07:51:17,439 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 07:51:17,439 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 07:51:17,439 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 07:51:17,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 07:51:17,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:51:17,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 07:51:17,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 07:51:17,441 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 07:51:17,441 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 07:51:17,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 07:51:17,441 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 07:51:17,442 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 07:51:17,442 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 07:51:17,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 07:51:17,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 07:51:17,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 07:51:17,779 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 07:51:17,779 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 07:51:17,780 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longer-1.i [2023-08-25 07:51:19,025 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 07:51:19,295 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 07:51:19,296 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longer-1.i [2023-08-25 07:51:19,321 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57b1e333c/1ae318c444204497b199d59813e72a23/FLAGb928cefcd [2023-08-25 07:51:19,334 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57b1e333c/1ae318c444204497b199d59813e72a23 [2023-08-25 07:51:19,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 07:51:19,338 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 07:51:19,339 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 07:51:19,339 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 07:51:19,341 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 07:51:19,342 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:51:19" (1/1) ... [2023-08-25 07:51:19,343 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77627c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:51:19, skipping insertion in model container [2023-08-25 07:51:19,343 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:51:19" (1/1) ... [2023-08-25 07:51:19,401 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 07:51:19,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:51:19,931 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 07:51:19,960 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-25 07:51:19,962 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-25 07:51:19,974 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [753] [2023-08-25 07:51:20,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:51:20,073 INFO L206 MainTranslator]: Completed translation [2023-08-25 07:51:20,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:51:20 WrapperNode [2023-08-25 07:51:20,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 07:51:20,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 07:51:20,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 07:51:20,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 07:51:20,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:51:20" (1/1) ... [2023-08-25 07:51:20,113 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:51:20" (1/1) ... [2023-08-25 07:51:20,140 INFO L138 Inliner]: procedures = 277, calls = 40, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 210 [2023-08-25 07:51:20,141 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 07:51:20,142 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 07:51:20,142 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 07:51:20,142 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 07:51:20,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:51:20" (1/1) ... [2023-08-25 07:51:20,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:51:20" (1/1) ... [2023-08-25 07:51:20,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:51:20" (1/1) ... [2023-08-25 07:51:20,156 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:51:20" (1/1) ... [2023-08-25 07:51:20,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:51:20" (1/1) ... [2023-08-25 07:51:20,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:51:20" (1/1) ... [2023-08-25 07:51:20,179 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:51:20" (1/1) ... [2023-08-25 07:51:20,181 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:51:20" (1/1) ... [2023-08-25 07:51:20,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 07:51:20,194 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 07:51:20,194 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 07:51:20,194 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 07:51:20,195 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:51:20" (1/1) ... [2023-08-25 07:51:20,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:51:20,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:51:20,229 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 07:51:20,239 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 07:51:20,270 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-08-25 07:51:20,271 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-08-25 07:51:20,271 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-08-25 07:51:20,271 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-08-25 07:51:20,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 07:51:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 07:51:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 07:51:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 07:51:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 07:51:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 07:51:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 07:51:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 07:51:20,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 07:51:20,274 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 07:51:20,457 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 07:51:20,459 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 07:51:20,840 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 07:51:20,849 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 07:51:20,853 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-25 07:51:20,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:51:20 BoogieIcfgContainer [2023-08-25 07:51:20,855 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 07:51:20,857 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 07:51:20,857 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 07:51:20,859 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 07:51:20,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:51:19" (1/3) ... [2023-08-25 07:51:20,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@511d6a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:51:20, skipping insertion in model container [2023-08-25 07:51:20,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:51:20" (2/3) ... [2023-08-25 07:51:20,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@511d6a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:51:20, skipping insertion in model container [2023-08-25 07:51:20,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:51:20" (3/3) ... [2023-08-25 07:51:20,862 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2023-08-25 07:51:20,878 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 07:51:20,878 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-08-25 07:51:20,879 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 07:51:20,986 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 07:51:21,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 223 places, 228 transitions, 472 flow [2023-08-25 07:51:21,103 INFO L124 PetriNetUnfolderBase]: 12/226 cut-off events. [2023-08-25 07:51:21,109 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 07:51:21,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 226 events. 12/226 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 598 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 184. Up to 3 conditions per place. [2023-08-25 07:51:21,120 INFO L82 GeneralOperation]: Start removeDead. Operand has 223 places, 228 transitions, 472 flow [2023-08-25 07:51:21,130 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 212 places, 217 transitions, 443 flow [2023-08-25 07:51:21,135 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 07:51:21,146 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 212 places, 217 transitions, 443 flow [2023-08-25 07:51:21,148 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 212 places, 217 transitions, 443 flow [2023-08-25 07:51:21,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 212 places, 217 transitions, 443 flow [2023-08-25 07:51:21,195 INFO L124 PetriNetUnfolderBase]: 12/217 cut-off events. [2023-08-25 07:51:21,195 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 07:51:21,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 217 events. 12/217 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 541 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 184. Up to 3 conditions per place. [2023-08-25 07:51:21,207 INFO L119 LiptonReduction]: Number of co-enabled transitions 19012 [2023-08-25 07:51:24,920 INFO L134 LiptonReduction]: Checked pairs total: 66547 [2023-08-25 07:51:24,920 INFO L136 LiptonReduction]: Total number of compositions: 160 [2023-08-25 07:51:24,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 07:51:24,936 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;@6274bc59, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 07:51:24,937 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2023-08-25 07:51:24,941 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 07:51:24,941 INFO L124 PetriNetUnfolderBase]: 1/12 cut-off events. [2023-08-25 07:51:24,941 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:51:24,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:51:24,942 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 07:51:24,942 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 29 more)] === [2023-08-25 07:51:24,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:51:24,946 INFO L85 PathProgramCache]: Analyzing trace with hash -94742553, now seen corresponding path program 1 times [2023-08-25 07:51:24,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:51:24,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430118705] [2023-08-25 07:51:24,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:51:24,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:51:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:51:25,148 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 07:51:25,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:51:25,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430118705] [2023-08-25 07:51:25,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430118705] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:51:25,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:51:25,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:51:25,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831366152] [2023-08-25 07:51:25,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:51:25,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:51:25,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:51:25,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:51:25,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:51:25,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 388 [2023-08-25 07:51:25,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 88 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 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 07:51:25,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:51:25,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 388 [2023-08-25 07:51:25,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:51:25,826 INFO L124 PetriNetUnfolderBase]: 2646/5322 cut-off events. [2023-08-25 07:51:25,826 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2023-08-25 07:51:25,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9903 conditions, 5322 events. 2646/5322 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 33642 event pairs, 873 based on Foata normal form. 96/4529 useless extension candidates. Maximal degree in co-relation 9314. Up to 2921 conditions per place. [2023-08-25 07:51:25,875 INFO L140 encePairwiseOnDemand]: 367/388 looper letters, 94 selfloop transitions, 14 changer transitions 0/137 dead transitions. [2023-08-25 07:51:25,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 137 transitions, 505 flow [2023-08-25 07:51:25,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:51:25,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:51:25,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 689 transitions. [2023-08-25 07:51:25,893 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5919243986254296 [2023-08-25 07:51:25,893 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 689 transitions. [2023-08-25 07:51:25,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 689 transitions. [2023-08-25 07:51:25,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:51:25,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 689 transitions. [2023-08-25 07:51:25,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 0 states have call successors, (0), 0 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 07:51:25,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 388.0) internal successors, (1552), 4 states have internal predecessors, (1552), 0 states have call successors, (0), 0 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 07:51:25,914 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 388.0) internal successors, (1552), 4 states have internal predecessors, (1552), 0 states have call successors, (0), 0 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 07:51:25,916 INFO L175 Difference]: Start difference. First operand has 89 places, 88 transitions, 185 flow. Second operand 3 states and 689 transitions. [2023-08-25 07:51:25,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 137 transitions, 505 flow [2023-08-25 07:51:25,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 137 transitions, 497 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 07:51:25,926 INFO L231 Difference]: Finished difference. Result has 90 places, 101 transitions, 302 flow [2023-08-25 07:51:25,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=302, PETRI_PLACES=90, PETRI_TRANSITIONS=101} [2023-08-25 07:51:25,931 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 1 predicate places. [2023-08-25 07:51:25,931 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 101 transitions, 302 flow [2023-08-25 07:51:25,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 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 07:51:25,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:51:25,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:51:25,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 07:51:25,933 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 29 more)] === [2023-08-25 07:51:25,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:51:25,934 INFO L85 PathProgramCache]: Analyzing trace with hash -360144720, now seen corresponding path program 1 times [2023-08-25 07:51:25,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:51:25,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593406744] [2023-08-25 07:51:25,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:51:25,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:51:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:51:26,027 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 07:51:26,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:51:26,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593406744] [2023-08-25 07:51:26,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593406744] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:51:26,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:51:26,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:51:26,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233921455] [2023-08-25 07:51:26,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:51:26,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:51:26,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:51:26,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:51:26,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:51:26,030 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 388 [2023-08-25 07:51:26,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 101 transitions, 302 flow. Second operand has 3 states, 3 states have (on average 211.66666666666666) internal successors, (635), 3 states have internal predecessors, (635), 0 states have call successors, (0), 0 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 07:51:26,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:51:26,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 388 [2023-08-25 07:51:26,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:51:26,770 INFO L124 PetriNetUnfolderBase]: 3762/8021 cut-off events. [2023-08-25 07:51:26,770 INFO L125 PetriNetUnfolderBase]: For 894/940 co-relation queries the response was YES. [2023-08-25 07:51:26,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15957 conditions, 8021 events. 3762/8021 cut-off events. For 894/940 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 59924 event pairs, 1125 based on Foata normal form. 0/6807 useless extension candidates. Maximal degree in co-relation 15296. Up to 3391 conditions per place. [2023-08-25 07:51:26,837 INFO L140 encePairwiseOnDemand]: 384/388 looper letters, 91 selfloop transitions, 3 changer transitions 0/145 dead transitions. [2023-08-25 07:51:26,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 145 transitions, 609 flow [2023-08-25 07:51:26,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:51:26,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:51:26,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 712 transitions. [2023-08-25 07:51:26,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6116838487972509 [2023-08-25 07:51:26,840 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 712 transitions. [2023-08-25 07:51:26,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 712 transitions. [2023-08-25 07:51:26,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:51:26,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 712 transitions. [2023-08-25 07:51:26,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:51:26,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 388.0) internal successors, (1552), 4 states have internal predecessors, (1552), 0 states have call successors, (0), 0 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 07:51:26,845 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 388.0) internal successors, (1552), 4 states have internal predecessors, (1552), 0 states have call successors, (0), 0 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 07:51:26,845 INFO L175 Difference]: Start difference. First operand has 90 places, 101 transitions, 302 flow. Second operand 3 states and 712 transitions. [2023-08-25 07:51:26,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 145 transitions, 609 flow [2023-08-25 07:51:26,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 145 transitions, 571 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:51:26,856 INFO L231 Difference]: Finished difference. Result has 92 places, 104 transitions, 300 flow [2023-08-25 07:51:26,857 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=92, PETRI_TRANSITIONS=104} [2023-08-25 07:51:26,857 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 3 predicate places. [2023-08-25 07:51:26,857 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 104 transitions, 300 flow [2023-08-25 07:51:26,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.66666666666666) internal successors, (635), 3 states have internal predecessors, (635), 0 states have call successors, (0), 0 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 07:51:26,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:51:26,858 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:51:26,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 07:51:26,859 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err5ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 29 more)] === [2023-08-25 07:51:26,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:51:26,859 INFO L85 PathProgramCache]: Analyzing trace with hash -853253128, now seen corresponding path program 1 times [2023-08-25 07:51:26,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:51:26,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083317146] [2023-08-25 07:51:26,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:51:26,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:51:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:51:26,916 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 07:51:26,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:51:26,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083317146] [2023-08-25 07:51:26,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083317146] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:51:26,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:51:26,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:51:26,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026518644] [2023-08-25 07:51:26,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:51:26,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:51:26,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:51:26,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:51:26,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:51:26,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 388 [2023-08-25 07:51:26,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 104 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 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 07:51:26,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:51:26,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 388 [2023-08-25 07:51:26,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:51:28,043 INFO L124 PetriNetUnfolderBase]: 5731/12222 cut-off events. [2023-08-25 07:51:28,044 INFO L125 PetriNetUnfolderBase]: For 923/957 co-relation queries the response was YES. [2023-08-25 07:51:28,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24458 conditions, 12222 events. 5731/12222 cut-off events. For 923/957 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 98213 event pairs, 2027 based on Foata normal form. 0/10474 useless extension candidates. Maximal degree in co-relation 23546. Up to 5971 conditions per place. [2023-08-25 07:51:28,119 INFO L140 encePairwiseOnDemand]: 383/388 looper letters, 86 selfloop transitions, 4 changer transitions 0/144 dead transitions. [2023-08-25 07:51:28,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 144 transitions, 583 flow [2023-08-25 07:51:28,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:51:28,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:51:28,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 696 transitions. [2023-08-25 07:51:28,121 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5979381443298969 [2023-08-25 07:51:28,122 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 696 transitions. [2023-08-25 07:51:28,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 696 transitions. [2023-08-25 07:51:28,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:51:28,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 696 transitions. [2023-08-25 07:51:28,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 0 states have call successors, (0), 0 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 07:51:28,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 388.0) internal successors, (1552), 4 states have internal predecessors, (1552), 0 states have call successors, (0), 0 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 07:51:28,127 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 388.0) internal successors, (1552), 4 states have internal predecessors, (1552), 0 states have call successors, (0), 0 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 07:51:28,127 INFO L175 Difference]: Start difference. First operand has 92 places, 104 transitions, 300 flow. Second operand 3 states and 696 transitions. [2023-08-25 07:51:28,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 144 transitions, 583 flow [2023-08-25 07:51:28,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 144 transitions, 575 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:51:28,133 INFO L231 Difference]: Finished difference. Result has 94 places, 107 transitions, 324 flow [2023-08-25 07:51:28,133 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=94, PETRI_TRANSITIONS=107} [2023-08-25 07:51:28,134 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 5 predicate places. [2023-08-25 07:51:28,134 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 107 transitions, 324 flow [2023-08-25 07:51:28,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 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 07:51:28,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:51:28,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:51:28,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 07:51:28,135 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 29 more)] === [2023-08-25 07:51:28,135 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:51:28,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1761708474, now seen corresponding path program 1 times [2023-08-25 07:51:28,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:51:28,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152781422] [2023-08-25 07:51:28,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:51:28,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:51:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:51:28,411 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 07:51:28,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:51:28,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152781422] [2023-08-25 07:51:28,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152781422] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:51:28,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:51:28,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 07:51:28,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920110379] [2023-08-25 07:51:28,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:51:28,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 07:51:28,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:51:28,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 07:51:28,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 07:51:28,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 388 [2023-08-25 07:51:28,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 107 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 0 states have call successors, (0), 0 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 07:51:28,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:51:28,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 388 [2023-08-25 07:51:28,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:51:35,137 INFO L124 PetriNetUnfolderBase]: 53641/89821 cut-off events. [2023-08-25 07:51:35,137 INFO L125 PetriNetUnfolderBase]: For 17365/17831 co-relation queries the response was YES. [2023-08-25 07:51:35,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194774 conditions, 89821 events. 53641/89821 cut-off events. For 17365/17831 co-relation queries the response was YES. Maximal size of possible extension queue 1906. Compared 789983 event pairs, 15857 based on Foata normal form. 29/76011 useless extension candidates. Maximal degree in co-relation 192617. Up to 46655 conditions per place. [2023-08-25 07:51:35,755 INFO L140 encePairwiseOnDemand]: 378/388 looper letters, 268 selfloop transitions, 21 changer transitions 0/326 dead transitions. [2023-08-25 07:51:35,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 326 transitions, 1517 flow [2023-08-25 07:51:35,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 07:51:35,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 07:51:35,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1355 transitions. [2023-08-25 07:51:35,759 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5820446735395189 [2023-08-25 07:51:35,760 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1355 transitions. [2023-08-25 07:51:35,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1355 transitions. [2023-08-25 07:51:35,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:51:35,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1355 transitions. [2023-08-25 07:51:35,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 225.83333333333334) internal successors, (1355), 6 states have internal predecessors, (1355), 0 states have call successors, (0), 0 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 07:51:35,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 388.0) internal successors, (2716), 7 states have internal predecessors, (2716), 0 states have call successors, (0), 0 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 07:51:35,769 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 388.0) internal successors, (2716), 7 states have internal predecessors, (2716), 0 states have call successors, (0), 0 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 07:51:35,770 INFO L175 Difference]: Start difference. First operand has 94 places, 107 transitions, 324 flow. Second operand 6 states and 1355 transitions. [2023-08-25 07:51:35,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 326 transitions, 1517 flow [2023-08-25 07:51:35,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 326 transitions, 1485 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:51:35,790 INFO L231 Difference]: Finished difference. Result has 102 places, 127 transitions, 458 flow [2023-08-25 07:51:35,791 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=458, PETRI_PLACES=102, PETRI_TRANSITIONS=127} [2023-08-25 07:51:35,793 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 13 predicate places. [2023-08-25 07:51:35,793 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 127 transitions, 458 flow [2023-08-25 07:51:35,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 0 states have call successors, (0), 0 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 07:51:35,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:51:35,794 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:51:35,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 07:51:35,795 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err6ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 29 more)] === [2023-08-25 07:51:35,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:51:35,796 INFO L85 PathProgramCache]: Analyzing trace with hash -887198299, now seen corresponding path program 1 times [2023-08-25 07:51:35,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:51:35,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531245399] [2023-08-25 07:51:35,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:51:35,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:51:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:51:36,021 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 07:51:36,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:51:36,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531245399] [2023-08-25 07:51:36,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531245399] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:51:36,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:51:36,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:51:36,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553488101] [2023-08-25 07:51:36,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:51:36,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:51:36,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:51:36,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:51:36,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:51:36,023 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 388 [2023-08-25 07:51:36,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 127 transitions, 458 flow. Second operand has 3 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:51:36,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:51:36,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 388 [2023-08-25 07:51:36,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:51:38,972 INFO L124 PetriNetUnfolderBase]: 15245/37529 cut-off events. [2023-08-25 07:51:38,972 INFO L125 PetriNetUnfolderBase]: For 6636/7021 co-relation queries the response was YES. [2023-08-25 07:51:39,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78964 conditions, 37529 events. 15245/37529 cut-off events. For 6636/7021 co-relation queries the response was YES. Maximal size of possible extension queue 897. Compared 403327 event pairs, 7191 based on Foata normal form. 7/31675 useless extension candidates. Maximal degree in co-relation 78346. Up to 24953 conditions per place. [2023-08-25 07:51:39,341 INFO L140 encePairwiseOnDemand]: 385/388 looper letters, 79 selfloop transitions, 2 changer transitions 0/153 dead transitions. [2023-08-25 07:51:39,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 153 transitions, 699 flow [2023-08-25 07:51:39,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:51:39,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:51:39,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 698 transitions. [2023-08-25 07:51:39,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5996563573883161 [2023-08-25 07:51:39,344 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 698 transitions. [2023-08-25 07:51:39,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 698 transitions. [2023-08-25 07:51:39,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:51:39,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 698 transitions. [2023-08-25 07:51:39,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.66666666666666) internal successors, (698), 3 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:51:39,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 388.0) internal successors, (1552), 4 states have internal predecessors, (1552), 0 states have call successors, (0), 0 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 07:51:39,350 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 388.0) internal successors, (1552), 4 states have internal predecessors, (1552), 0 states have call successors, (0), 0 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 07:51:39,350 INFO L175 Difference]: Start difference. First operand has 102 places, 127 transitions, 458 flow. Second operand 3 states and 698 transitions. [2023-08-25 07:51:39,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 153 transitions, 699 flow [2023-08-25 07:51:39,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 153 transitions, 699 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 07:51:39,368 INFO L231 Difference]: Finished difference. Result has 105 places, 128 transitions, 470 flow [2023-08-25 07:51:39,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=470, PETRI_PLACES=105, PETRI_TRANSITIONS=128} [2023-08-25 07:51:39,371 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 16 predicate places. [2023-08-25 07:51:39,371 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 128 transitions, 470 flow [2023-08-25 07:51:39,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:51:39,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:51:39,372 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:51:39,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 07:51:39,372 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 29 more)] === [2023-08-25 07:51:39,372 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:51:39,373 INFO L85 PathProgramCache]: Analyzing trace with hash -44230461, now seen corresponding path program 1 times [2023-08-25 07:51:39,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:51:39,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446689145] [2023-08-25 07:51:39,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:51:39,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:51:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:51:39,655 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 07:51:39,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:51:39,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446689145] [2023-08-25 07:51:39,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446689145] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:51:39,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:51:39,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 07:51:39,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430887281] [2023-08-25 07:51:39,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:51:39,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 07:51:39,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:51:39,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 07:51:39,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 07:51:39,662 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 388 [2023-08-25 07:51:39,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 128 transitions, 470 flow. Second operand has 6 states, 6 states have (on average 185.16666666666666) internal successors, (1111), 6 states have internal predecessors, (1111), 0 states have call successors, (0), 0 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 07:51:39,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:51:39,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 388 [2023-08-25 07:51:39,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:51:48,413 INFO L124 PetriNetUnfolderBase]: 59025/103614 cut-off events. [2023-08-25 07:51:48,413 INFO L125 PetriNetUnfolderBase]: For 60173/60356 co-relation queries the response was YES. [2023-08-25 07:51:48,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265526 conditions, 103614 events. 59025/103614 cut-off events. For 60173/60356 co-relation queries the response was YES. Maximal size of possible extension queue 1654. Compared 930014 event pairs, 31312 based on Foata normal form. 0/93106 useless extension candidates. Maximal degree in co-relation 264610. Up to 83848 conditions per place. [2023-08-25 07:51:49,194 INFO L140 encePairwiseOnDemand]: 374/388 looper letters, 191 selfloop transitions, 44 changer transitions 0/271 dead transitions. [2023-08-25 07:51:49,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 271 transitions, 1388 flow [2023-08-25 07:51:49,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 07:51:49,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 07:51:49,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1289 transitions. [2023-08-25 07:51:49,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5536941580756014 [2023-08-25 07:51:49,198 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1289 transitions. [2023-08-25 07:51:49,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1289 transitions. [2023-08-25 07:51:49,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:51:49,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1289 transitions. [2023-08-25 07:51:49,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 214.83333333333334) internal successors, (1289), 6 states have internal predecessors, (1289), 0 states have call successors, (0), 0 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 07:51:49,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 388.0) internal successors, (2716), 7 states have internal predecessors, (2716), 0 states have call successors, (0), 0 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 07:51:49,206 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 388.0) internal successors, (2716), 7 states have internal predecessors, (2716), 0 states have call successors, (0), 0 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 07:51:49,206 INFO L175 Difference]: Start difference. First operand has 105 places, 128 transitions, 470 flow. Second operand 6 states and 1289 transitions. [2023-08-25 07:51:49,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 271 transitions, 1388 flow [2023-08-25 07:51:49,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 271 transitions, 1386 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 07:51:49,651 INFO L231 Difference]: Finished difference. Result has 113 places, 167 transitions, 774 flow [2023-08-25 07:51:49,652 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=774, PETRI_PLACES=113, PETRI_TRANSITIONS=167} [2023-08-25 07:51:49,652 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 24 predicate places. [2023-08-25 07:51:49,653 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 167 transitions, 774 flow [2023-08-25 07:51:49,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.16666666666666) internal successors, (1111), 6 states have internal predecessors, (1111), 0 states have call successors, (0), 0 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 07:51:49,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:51:49,653 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:51:49,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 07:51:49,654 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 29 more)] === [2023-08-25 07:51:49,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:51:49,654 INFO L85 PathProgramCache]: Analyzing trace with hash -412101459, now seen corresponding path program 1 times [2023-08-25 07:51:49,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:51:49,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992695103] [2023-08-25 07:51:49,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:51:49,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:51:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:51:49,691 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 07:51:49,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:51:49,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992695103] [2023-08-25 07:51:49,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992695103] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:51:49,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:51:49,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 07:51:49,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932690613] [2023-08-25 07:51:49,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:51:49,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:51:49,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:51:49,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:51:49,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:51:49,693 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 388 [2023-08-25 07:51:49,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 167 transitions, 774 flow. Second operand has 3 states, 3 states have (on average 212.0) internal successors, (636), 3 states have internal predecessors, (636), 0 states have call successors, (0), 0 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 07:51:49,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:51:49,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 388 [2023-08-25 07:51:49,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:51:53,938 INFO L124 PetriNetUnfolderBase]: 20508/48090 cut-off events. [2023-08-25 07:51:53,938 INFO L125 PetriNetUnfolderBase]: For 24441/26617 co-relation queries the response was YES. [2023-08-25 07:51:54,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114928 conditions, 48090 events. 20508/48090 cut-off events. For 24441/26617 co-relation queries the response was YES. Maximal size of possible extension queue 1126. Compared 517935 event pairs, 8506 based on Foata normal form. 576/43654 useless extension candidates. Maximal degree in co-relation 108524. Up to 27644 conditions per place. [2023-08-25 07:51:54,227 INFO L140 encePairwiseOnDemand]: 385/388 looper letters, 96 selfloop transitions, 2 changer transitions 0/209 dead transitions. [2023-08-25 07:51:54,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 209 transitions, 1122 flow [2023-08-25 07:51:54,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:51:54,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:51:54,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 703 transitions. [2023-08-25 07:51:54,230 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6039518900343642 [2023-08-25 07:51:54,230 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 703 transitions. [2023-08-25 07:51:54,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 703 transitions. [2023-08-25 07:51:54,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:51:54,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 703 transitions. [2023-08-25 07:51:54,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 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 07:51:54,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 388.0) internal successors, (1552), 4 states have internal predecessors, (1552), 0 states have call successors, (0), 0 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 07:51:54,235 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 388.0) internal successors, (1552), 4 states have internal predecessors, (1552), 0 states have call successors, (0), 0 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 07:51:54,235 INFO L175 Difference]: Start difference. First operand has 113 places, 167 transitions, 774 flow. Second operand 3 states and 703 transitions. [2023-08-25 07:51:54,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 209 transitions, 1122 flow [2023-08-25 07:51:54,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 209 transitions, 1098 flow, removed 12 selfloop flow, removed 0 redundant places. [2023-08-25 07:51:54,447 INFO L231 Difference]: Finished difference. Result has 116 places, 168 transitions, 762 flow [2023-08-25 07:51:54,448 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=762, PETRI_PLACES=116, PETRI_TRANSITIONS=168} [2023-08-25 07:51:54,448 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 27 predicate places. [2023-08-25 07:51:54,448 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 168 transitions, 762 flow [2023-08-25 07:51:54,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 212.0) internal successors, (636), 3 states have internal predecessors, (636), 0 states have call successors, (0), 0 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 07:51:54,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:51:54,449 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:51:54,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 07:51:54,449 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 29 more)] === [2023-08-25 07:51:54,450 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:51:54,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1450007878, now seen corresponding path program 1 times [2023-08-25 07:51:54,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:51:54,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835387547] [2023-08-25 07:51:54,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:51:54,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:51:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:51:54,888 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 07:51:54,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:51:54,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835387547] [2023-08-25 07:51:54,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835387547] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:51:54,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:51:54,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 07:51:54,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017189485] [2023-08-25 07:51:54,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:51:54,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 07:51:54,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:51:54,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 07:51:54,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-08-25 07:51:54,895 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 388 [2023-08-25 07:51:54,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 168 transitions, 762 flow. Second operand has 10 states, 10 states have (on average 179.7) internal successors, (1797), 10 states have internal predecessors, (1797), 0 states have call successors, (0), 0 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 07:51:54,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:51:54,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 388 [2023-08-25 07:51:54,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:52:07,152 INFO L124 PetriNetUnfolderBase]: 77516/135650 cut-off events. [2023-08-25 07:52:07,153 INFO L125 PetriNetUnfolderBase]: For 102649/102950 co-relation queries the response was YES. [2023-08-25 07:52:07,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 384668 conditions, 135650 events. 77516/135650 cut-off events. For 102649/102950 co-relation queries the response was YES. Maximal size of possible extension queue 2405. Compared 1279947 event pairs, 25723 based on Foata normal form. 2523/126120 useless extension candidates. Maximal degree in co-relation 355070. Up to 57810 conditions per place. [2023-08-25 07:52:08,044 INFO L140 encePairwiseOnDemand]: 375/388 looper letters, 446 selfloop transitions, 33 changer transitions 0/515 dead transitions. [2023-08-25 07:52:08,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 515 transitions, 2971 flow [2023-08-25 07:52:08,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 07:52:08,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 07:52:08,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1927 transitions. [2023-08-25 07:52:08,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5518327605956472 [2023-08-25 07:52:08,050 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1927 transitions. [2023-08-25 07:52:08,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1927 transitions. [2023-08-25 07:52:08,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:52:08,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1927 transitions. [2023-08-25 07:52:08,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 214.11111111111111) internal successors, (1927), 9 states have internal predecessors, (1927), 0 states have call successors, (0), 0 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 07:52:08,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 388.0) internal successors, (3880), 10 states have internal predecessors, (3880), 0 states have call successors, (0), 0 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 07:52:08,060 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 388.0) internal successors, (3880), 10 states have internal predecessors, (3880), 0 states have call successors, (0), 0 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 07:52:08,060 INFO L175 Difference]: Start difference. First operand has 116 places, 168 transitions, 762 flow. Second operand 9 states and 1927 transitions. [2023-08-25 07:52:08,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 515 transitions, 2971 flow [2023-08-25 07:52:12,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 515 transitions, 2960 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 07:52:12,215 INFO L231 Difference]: Finished difference. Result has 127 places, 180 transitions, 978 flow [2023-08-25 07:52:12,215 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=978, PETRI_PLACES=127, PETRI_TRANSITIONS=180} [2023-08-25 07:52:12,216 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 38 predicate places. [2023-08-25 07:52:12,216 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 180 transitions, 978 flow [2023-08-25 07:52:12,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 179.7) internal successors, (1797), 10 states have internal predecessors, (1797), 0 states have call successors, (0), 0 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 07:52:12,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:52:12,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:52:12,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 07:52:12,217 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 29 more)] === [2023-08-25 07:52:12,218 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:52:12,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1867245836, now seen corresponding path program 2 times [2023-08-25 07:52:12,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:52:12,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451462829] [2023-08-25 07:52:12,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:52:12,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:52:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:52:12,619 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 07:52:12,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:52:12,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451462829] [2023-08-25 07:52:12,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451462829] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:52:12,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:52:12,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 07:52:12,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978055241] [2023-08-25 07:52:12,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:52:12,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 07:52:12,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:52:12,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 07:52:12,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-25 07:52:12,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 388 [2023-08-25 07:52:12,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 180 transitions, 978 flow. Second operand has 10 states, 10 states have (on average 179.7) internal successors, (1797), 10 states have internal predecessors, (1797), 0 states have call successors, (0), 0 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 07:52:12,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:52:12,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 388 [2023-08-25 07:52:12,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:52:32,252 INFO L124 PetriNetUnfolderBase]: 110686/190397 cut-off events. [2023-08-25 07:52:32,252 INFO L125 PetriNetUnfolderBase]: For 268887/269302 co-relation queries the response was YES. [2023-08-25 07:52:33,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592902 conditions, 190397 events. 110686/190397 cut-off events. For 268887/269302 co-relation queries the response was YES. Maximal size of possible extension queue 3239. Compared 1823563 event pairs, 26018 based on Foata normal form. 2890/179854 useless extension candidates. Maximal degree in co-relation 591796. Up to 64652 conditions per place. [2023-08-25 07:52:33,655 INFO L140 encePairwiseOnDemand]: 379/388 looper letters, 503 selfloop transitions, 51 changer transitions 0/590 dead transitions. [2023-08-25 07:52:33,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 590 transitions, 3830 flow [2023-08-25 07:52:33,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 07:52:33,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 07:52:33,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2270 transitions. [2023-08-25 07:52:33,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5318650421743205 [2023-08-25 07:52:33,661 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2270 transitions. [2023-08-25 07:52:33,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2270 transitions. [2023-08-25 07:52:33,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:52:33,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2270 transitions. [2023-08-25 07:52:33,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 206.36363636363637) internal successors, (2270), 11 states have internal predecessors, (2270), 0 states have call successors, (0), 0 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 07:52:33,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 388.0) internal successors, (4656), 12 states have internal predecessors, (4656), 0 states have call successors, (0), 0 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 07:52:33,673 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 388.0) internal successors, (4656), 12 states have internal predecessors, (4656), 0 states have call successors, (0), 0 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 07:52:33,674 INFO L175 Difference]: Start difference. First operand has 127 places, 180 transitions, 978 flow. Second operand 11 states and 2270 transitions. [2023-08-25 07:52:33,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 590 transitions, 3830 flow [2023-08-25 07:52:40,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 590 transitions, 3787 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 07:52:40,941 INFO L231 Difference]: Finished difference. Result has 140 places, 220 transitions, 1448 flow [2023-08-25 07:52:40,942 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=955, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1448, PETRI_PLACES=140, PETRI_TRANSITIONS=220} [2023-08-25 07:52:40,942 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 51 predicate places. [2023-08-25 07:52:40,942 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 220 transitions, 1448 flow [2023-08-25 07:52:40,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 179.7) internal successors, (1797), 10 states have internal predecessors, (1797), 0 states have call successors, (0), 0 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 07:52:40,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:52:40,943 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:52:40,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 07:52:40,944 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 29 more)] === [2023-08-25 07:52:40,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:52:40,945 INFO L85 PathProgramCache]: Analyzing trace with hash -88202224, now seen corresponding path program 3 times [2023-08-25 07:52:40,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:52:40,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410475604] [2023-08-25 07:52:40,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:52:40,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:52:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:52:41,350 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 07:52:41,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:52:41,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410475604] [2023-08-25 07:52:41,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410475604] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:52:41,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:52:41,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 07:52:41,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716109283] [2023-08-25 07:52:41,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:52:41,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 07:52:41,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:52:41,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 07:52:41,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-25 07:52:41,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 388 [2023-08-25 07:52:41,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 220 transitions, 1448 flow. Second operand has 10 states, 10 states have (on average 179.7) internal successors, (1797), 10 states have internal predecessors, (1797), 0 states have call successors, (0), 0 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 07:52:41,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:52:41,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 388 [2023-08-25 07:52:41,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:53:06,401 INFO L124 PetriNetUnfolderBase]: 129521/226068 cut-off events. [2023-08-25 07:53:06,401 INFO L125 PetriNetUnfolderBase]: For 632960/633646 co-relation queries the response was YES. [2023-08-25 07:53:07,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 788560 conditions, 226068 events. 129521/226068 cut-off events. For 632960/633646 co-relation queries the response was YES. Maximal size of possible extension queue 3988. Compared 2260536 event pairs, 42248 based on Foata normal form. 2582/211718 useless extension candidates. Maximal degree in co-relation 787410. Up to 81670 conditions per place. [2023-08-25 07:53:08,193 INFO L140 encePairwiseOnDemand]: 375/388 looper letters, 555 selfloop transitions, 59 changer transitions 0/650 dead transitions. [2023-08-25 07:53:08,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 650 transitions, 4480 flow [2023-08-25 07:53:08,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 07:53:08,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 07:53:08,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2162 transitions. [2023-08-25 07:53:08,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5572164948453608 [2023-08-25 07:53:08,198 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2162 transitions. [2023-08-25 07:53:08,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2162 transitions. [2023-08-25 07:53:08,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:53:08,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2162 transitions. [2023-08-25 07:53:08,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 216.2) internal successors, (2162), 10 states have internal predecessors, (2162), 0 states have call successors, (0), 0 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 07:53:08,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 388.0) internal successors, (4268), 11 states have internal predecessors, (4268), 0 states have call successors, (0), 0 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 07:53:08,209 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 388.0) internal successors, (4268), 11 states have internal predecessors, (4268), 0 states have call successors, (0), 0 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 07:53:08,209 INFO L175 Difference]: Start difference. First operand has 140 places, 220 transitions, 1448 flow. Second operand 10 states and 2162 transitions. [2023-08-25 07:53:08,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 650 transitions, 4480 flow [2023-08-25 07:54:28,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 650 transitions, 4395 flow, removed 16 selfloop flow, removed 2 redundant places. [2023-08-25 07:54:28,190 INFO L231 Difference]: Finished difference. Result has 152 places, 245 transitions, 1930 flow [2023-08-25 07:54:28,191 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=1413, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1930, PETRI_PLACES=152, PETRI_TRANSITIONS=245} [2023-08-25 07:54:28,191 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 63 predicate places. [2023-08-25 07:54:28,191 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 245 transitions, 1930 flow [2023-08-25 07:54:28,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 179.7) internal successors, (1797), 10 states have internal predecessors, (1797), 0 states have call successors, (0), 0 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 07:54:28,192 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:54:28,193 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:54:28,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 07:54:28,193 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 29 more)] === [2023-08-25 07:54:28,193 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:54:28,193 INFO L85 PathProgramCache]: Analyzing trace with hash 762984089, now seen corresponding path program 1 times [2023-08-25 07:54:28,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:54:28,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114017828] [2023-08-25 07:54:28,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:54:28,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:54:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:54:28,511 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 07:54:28,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:54:28,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114017828] [2023-08-25 07:54:28,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114017828] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:54:28,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:54:28,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 07:54:28,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968069930] [2023-08-25 07:54:28,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:54:28,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 07:54:28,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:54:28,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 07:54:28,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-25 07:54:28,514 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 388 [2023-08-25 07:54:28,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 245 transitions, 1930 flow. Second operand has 10 states, 10 states have (on average 174.7) internal successors, (1747), 10 states have internal predecessors, (1747), 0 states have call successors, (0), 0 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 07:54:28,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:54:28,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 388 [2023-08-25 07:54:28,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand