/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread/stateful01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 18:19:23,316 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 18:19:23,400 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 [2023-08-24 18:19:23,410 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 18:19:23,411 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 18:19:23,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 18:19:23,444 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 18:19:23,449 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 18:19:23,449 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 18:19:23,453 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 18:19:23,453 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 18:19:23,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 18:19:23,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 18:19:23,455 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 18:19:23,455 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 18:19:23,455 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 18:19:23,455 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 18:19:23,455 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 18:19:23,455 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 18:19:23,456 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 18:19:23,456 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 18:19:23,457 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 18:19:23,457 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 18:19:23,457 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 18:19:23,458 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 18:19:23,458 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 18:19:23,458 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 18:19:23,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:19:23,458 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 18:19:23,459 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 18:19:23,459 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 18:19:23,460 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 18:19:23,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 18:19:23,460 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 18:19:23,460 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 18:19:23,460 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-24 18:19:23,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 18:19:23,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 18:19:23,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 18:19:23,796 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 18:19:23,797 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 18:19:23,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2023-08-24 18:19:25,025 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 18:19:25,326 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 18:19:25,327 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i [2023-08-24 18:19:25,355 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4075524e/d74e1555379e4d2fa6a3d345bb50a933/FLAG27795267a [2023-08-24 18:19:25,369 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4075524e/d74e1555379e4d2fa6a3d345bb50a933 [2023-08-24 18:19:25,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 18:19:25,375 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 18:19:25,377 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 18:19:25,377 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 18:19:25,379 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 18:19:25,381 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:19:25" (1/1) ... [2023-08-24 18:19:25,382 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2308183c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:25, skipping insertion in model container [2023-08-24 18:19:25,382 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:19:25" (1/1) ... [2023-08-24 18:19:25,427 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 18:19:25,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:19:25,729 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 18:19:25,746 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [257] [2023-08-24 18:19:25,748 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [257] [2023-08-24 18:19:25,765 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:19:25,799 INFO L206 MainTranslator]: Completed translation [2023-08-24 18:19:25,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:25 WrapperNode [2023-08-24 18:19:25,799 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 18:19:25,800 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 18:19:25,800 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 18:19:25,800 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 18:19:25,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:25" (1/1) ... [2023-08-24 18:19:25,817 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:25" (1/1) ... [2023-08-24 18:19:25,836 INFO L138 Inliner]: procedures = 168, calls = 35, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2023-08-24 18:19:25,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 18:19:25,837 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 18:19:25,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 18:19:25,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 18:19:25,844 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:25" (1/1) ... [2023-08-24 18:19:25,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:25" (1/1) ... [2023-08-24 18:19:25,847 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:25" (1/1) ... [2023-08-24 18:19:25,847 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:25" (1/1) ... [2023-08-24 18:19:25,854 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:25" (1/1) ... [2023-08-24 18:19:25,856 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:25" (1/1) ... [2023-08-24 18:19:25,858 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:25" (1/1) ... [2023-08-24 18:19:25,859 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:25" (1/1) ... [2023-08-24 18:19:25,861 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 18:19:25,862 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 18:19:25,862 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 18:19:25,862 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 18:19:25,862 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:25" (1/1) ... [2023-08-24 18:19:25,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:19:25,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 18:19:25,902 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) [2023-08-24 18:19:25,923 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 [2023-08-24 18:19:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 18:19:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-24 18:19:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-24 18:19:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-24 18:19:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-24 18:19:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 18:19:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-24 18:19:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 18:19:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 18:19:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 18:19:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 18:19:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 18:19:25,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 18:19:25,941 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 18:19:26,049 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 18:19:26,051 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 18:19:26,262 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 18:19:26,269 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 18:19:26,270 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-24 18:19:26,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:19:26 BoogieIcfgContainer [2023-08-24 18:19:26,272 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 18:19:26,274 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 18:19:26,274 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 18:19:26,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 18:19:26,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 06:19:25" (1/3) ... [2023-08-24 18:19:26,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44985cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:19:26, skipping insertion in model container [2023-08-24 18:19:26,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:25" (2/3) ... [2023-08-24 18:19:26,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44985cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:19:26, skipping insertion in model container [2023-08-24 18:19:26,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:19:26" (3/3) ... [2023-08-24 18:19:26,279 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2023-08-24 18:19:26,294 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 18:19:26,294 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2023-08-24 18:19:26,294 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 18:19:26,353 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-24 18:19:26,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 159 transitions, 334 flow [2023-08-24 18:19:26,483 INFO L124 PetriNetUnfolderBase]: 3/157 cut-off events. [2023-08-24 18:19:26,484 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 18:19:26,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 157 events. 3/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 158 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2023-08-24 18:19:26,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 159 transitions, 334 flow [2023-08-24 18:19:26,498 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 144 transitions, 300 flow [2023-08-24 18:19:26,501 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:19:26,512 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 144 transitions, 300 flow [2023-08-24 18:19:26,519 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 144 transitions, 300 flow [2023-08-24 18:19:26,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 144 transitions, 300 flow [2023-08-24 18:19:26,570 INFO L124 PetriNetUnfolderBase]: 1/144 cut-off events. [2023-08-24 18:19:26,570 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 18:19:26,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 144 events. 1/144 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 134 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2023-08-24 18:19:26,574 INFO L119 LiptonReduction]: Number of co-enabled transitions 3576 [2023-08-24 18:19:30,150 INFO L134 LiptonReduction]: Checked pairs total: 17081 [2023-08-24 18:19:30,151 INFO L136 LiptonReduction]: Total number of compositions: 115 [2023-08-24 18:19:30,166 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 18:19:30,172 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;@26b64a2c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 18:19:30,172 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-08-24 18:19:30,173 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 18:19:30,173 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-24 18:19:30,173 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:19:30,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:30,174 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-24 18:19:30,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:30,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:30,179 INFO L85 PathProgramCache]: Analyzing trace with hash 536, now seen corresponding path program 1 times [2023-08-24 18:19:30,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:30,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529925205] [2023-08-24 18:19:30,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:30,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:19:30,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:19:30,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:19:30,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529925205] [2023-08-24 18:19:30,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529925205] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:19:30,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:19:30,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-24 18:19:30,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770324940] [2023-08-24 18:19:30,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:19:30,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 18:19:30,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:19:30,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 18:19:30,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 18:19:30,313 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 274 [2023-08-24 18:19:30,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 53 transitions, 118 flow. Second operand has 2 states, 2 states have (on average 152.5) internal successors, (305), 2 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:30,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:19:30,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 274 [2023-08-24 18:19:30,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:19:30,431 INFO L124 PetriNetUnfolderBase]: 189/495 cut-off events. [2023-08-24 18:19:30,431 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 18:19:30,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 878 conditions, 495 events. 189/495 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2539 event pairs, 189 based on Foata normal form. 0/443 useless extension candidates. Maximal degree in co-relation 795. Up to 353 conditions per place. [2023-08-24 18:19:30,437 INFO L140 encePairwiseOnDemand]: 268/274 looper letters, 23 selfloop transitions, 0 changer transitions 0/47 dead transitions. [2023-08-24 18:19:30,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 152 flow [2023-08-24 18:19:30,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 18:19:30,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 18:19:30,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 333 transitions. [2023-08-24 18:19:30,452 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6076642335766423 [2023-08-24 18:19:30,452 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 333 transitions. [2023-08-24 18:19:30,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 333 transitions. [2023-08-24 18:19:30,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:19:30,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 333 transitions. [2023-08-24 18:19:30,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 166.5) internal successors, (333), 2 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:30,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:30,463 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:30,464 INFO L175 Difference]: Start difference. First operand has 60 places, 53 transitions, 118 flow. Second operand 2 states and 333 transitions. [2023-08-24 18:19:30,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 152 flow [2023-08-24 18:19:30,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 47 transitions, 144 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-24 18:19:30,469 INFO L231 Difference]: Finished difference. Result has 51 places, 47 transitions, 98 flow [2023-08-24 18:19:30,471 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=98, PETRI_PLACES=51, PETRI_TRANSITIONS=47} [2023-08-24 18:19:30,473 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -9 predicate places. [2023-08-24 18:19:30,474 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 98 flow [2023-08-24 18:19:30,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 152.5) internal successors, (305), 2 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:30,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:30,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-24 18:19:30,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 18:19:30,475 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:30,475 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:30,475 INFO L85 PathProgramCache]: Analyzing trace with hash 508849554, now seen corresponding path program 1 times [2023-08-24 18:19:30,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:30,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765433656] [2023-08-24 18:19:30,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:30,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:19:30,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:19:30,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:19:30,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765433656] [2023-08-24 18:19:30,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765433656] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:19:30,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:19:30,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:19:30,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967820418] [2023-08-24 18:19:30,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:19:30,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:19:30,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:19:30,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:19:30,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:19:30,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 274 [2023-08-24 18:19:30,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:30,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:19:30,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 274 [2023-08-24 18:19:30,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:19:30,794 INFO L124 PetriNetUnfolderBase]: 576/1267 cut-off events. [2023-08-24 18:19:30,794 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-24 18:19:30,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2307 conditions, 1267 events. 576/1267 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 7319 event pairs, 353 based on Foata normal form. 0/1099 useless extension candidates. Maximal degree in co-relation 2304. Up to 728 conditions per place. [2023-08-24 18:19:30,803 INFO L140 encePairwiseOnDemand]: 265/274 looper letters, 53 selfloop transitions, 7 changer transitions 0/74 dead transitions. [2023-08-24 18:19:30,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 74 transitions, 274 flow [2023-08-24 18:19:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:19:30,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:19:30,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 464 transitions. [2023-08-24 18:19:30,808 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5644768856447688 [2023-08-24 18:19:30,808 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 464 transitions. [2023-08-24 18:19:30,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 464 transitions. [2023-08-24 18:19:30,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:19:30,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 464 transitions. [2023-08-24 18:19:30,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:30,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:30,815 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:30,815 INFO L175 Difference]: Start difference. First operand has 51 places, 47 transitions, 98 flow. Second operand 3 states and 464 transitions. [2023-08-24 18:19:30,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 74 transitions, 274 flow [2023-08-24 18:19:30,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 74 transitions, 274 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:19:30,817 INFO L231 Difference]: Finished difference. Result has 55 places, 53 transitions, 154 flow [2023-08-24 18:19:30,818 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=55, PETRI_TRANSITIONS=53} [2023-08-24 18:19:30,818 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -5 predicate places. [2023-08-24 18:19:30,819 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 154 flow [2023-08-24 18:19:30,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:30,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:30,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:19:30,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 18:19:30,821 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:30,825 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:30,826 INFO L85 PathProgramCache]: Analyzing trace with hash -586492104, now seen corresponding path program 1 times [2023-08-24 18:19:30,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:30,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074074741] [2023-08-24 18:19:30,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:30,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:19:30,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:19:30,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:19:30,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074074741] [2023-08-24 18:19:30,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074074741] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:19:30,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:19:30,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:19:30,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379414850] [2023-08-24 18:19:30,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:19:30,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:19:30,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:19:30,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:19:30,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:19:30,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 274 [2023-08-24 18:19:30,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:30,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:19:30,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 274 [2023-08-24 18:19:30,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:19:31,059 INFO L124 PetriNetUnfolderBase]: 584/1263 cut-off events. [2023-08-24 18:19:31,059 INFO L125 PetriNetUnfolderBase]: For 377/381 co-relation queries the response was YES. [2023-08-24 18:19:31,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2690 conditions, 1263 events. 584/1263 cut-off events. For 377/381 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 7096 event pairs, 442 based on Foata normal form. 0/1149 useless extension candidates. Maximal degree in co-relation 2685. Up to 954 conditions per place. [2023-08-24 18:19:31,067 INFO L140 encePairwiseOnDemand]: 269/274 looper letters, 51 selfloop transitions, 6 changer transitions 0/71 dead transitions. [2023-08-24 18:19:31,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 71 transitions, 321 flow [2023-08-24 18:19:31,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:19:31,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:19:31,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 447 transitions. [2023-08-24 18:19:31,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5437956204379562 [2023-08-24 18:19:31,069 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 447 transitions. [2023-08-24 18:19:31,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 447 transitions. [2023-08-24 18:19:31,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:19:31,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 447 transitions. [2023-08-24 18:19:31,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,072 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,073 INFO L175 Difference]: Start difference. First operand has 55 places, 53 transitions, 154 flow. Second operand 3 states and 447 transitions. [2023-08-24 18:19:31,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 71 transitions, 321 flow [2023-08-24 18:19:31,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 71 transitions, 301 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:19:31,079 INFO L231 Difference]: Finished difference. Result has 56 places, 57 transitions, 182 flow [2023-08-24 18:19:31,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=56, PETRI_TRANSITIONS=57} [2023-08-24 18:19:31,080 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2023-08-24 18:19:31,083 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 57 transitions, 182 flow [2023-08-24 18:19:31,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,083 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:31,084 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:19:31,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 18:19:31,084 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:31,084 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:31,084 INFO L85 PathProgramCache]: Analyzing trace with hash 85118785, now seen corresponding path program 1 times [2023-08-24 18:19:31,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:31,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980384753] [2023-08-24 18:19:31,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:31,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:19:31,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:19:31,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:19:31,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980384753] [2023-08-24 18:19:31,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980384753] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:19:31,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:19:31,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:19:31,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896760209] [2023-08-24 18:19:31,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:19:31,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:19:31,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:19:31,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:19:31,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:19:31,160 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 274 [2023-08-24 18:19:31,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 57 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:19:31,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 274 [2023-08-24 18:19:31,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:19:31,302 INFO L124 PetriNetUnfolderBase]: 605/1330 cut-off events. [2023-08-24 18:19:31,302 INFO L125 PetriNetUnfolderBase]: For 460/464 co-relation queries the response was YES. [2023-08-24 18:19:31,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2892 conditions, 1330 events. 605/1330 cut-off events. For 460/464 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7705 event pairs, 409 based on Foata normal form. 0/1190 useless extension candidates. Maximal degree in co-relation 2886. Up to 921 conditions per place. [2023-08-24 18:19:31,310 INFO L140 encePairwiseOnDemand]: 268/274 looper letters, 53 selfloop transitions, 9 changer transitions 0/76 dead transitions. [2023-08-24 18:19:31,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 76 transitions, 370 flow [2023-08-24 18:19:31,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:19:31,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:19:31,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2023-08-24 18:19:31,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5425790754257908 [2023-08-24 18:19:31,312 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2023-08-24 18:19:31,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2023-08-24 18:19:31,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:19:31,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2023-08-24 18:19:31,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,315 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,316 INFO L175 Difference]: Start difference. First operand has 56 places, 57 transitions, 182 flow. Second operand 3 states and 446 transitions. [2023-08-24 18:19:31,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 76 transitions, 370 flow [2023-08-24 18:19:31,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 76 transitions, 361 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 18:19:31,319 INFO L231 Difference]: Finished difference. Result has 59 places, 62 transitions, 244 flow [2023-08-24 18:19:31,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=59, PETRI_TRANSITIONS=62} [2023-08-24 18:19:31,320 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -1 predicate places. [2023-08-24 18:19:31,320 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 62 transitions, 244 flow [2023-08-24 18:19:31,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:31,320 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:19:31,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 18:19:31,321 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:31,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:31,321 INFO L85 PathProgramCache]: Analyzing trace with hash 641065944, now seen corresponding path program 1 times [2023-08-24 18:19:31,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:31,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931624737] [2023-08-24 18:19:31,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:31,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:19:31,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:19:31,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:19:31,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931624737] [2023-08-24 18:19:31,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931624737] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:19:31,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:19:31,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 18:19:31,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686680634] [2023-08-24 18:19:31,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:19:31,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:19:31,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:19:31,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:19:31,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:19:31,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 274 [2023-08-24 18:19:31,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 62 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:19:31,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 274 [2023-08-24 18:19:31,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:19:31,488 INFO L124 PetriNetUnfolderBase]: 89/362 cut-off events. [2023-08-24 18:19:31,488 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2023-08-24 18:19:31,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 362 events. 89/362 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1567 event pairs, 24 based on Foata normal form. 52/398 useless extension candidates. Maximal degree in co-relation 736. Up to 169 conditions per place. [2023-08-24 18:19:31,490 INFO L140 encePairwiseOnDemand]: 266/274 looper letters, 23 selfloop transitions, 8 changer transitions 0/48 dead transitions. [2023-08-24 18:19:31,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 48 transitions, 200 flow [2023-08-24 18:19:31,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:19:31,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:19:31,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 443 transitions. [2023-08-24 18:19:31,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5389294403892944 [2023-08-24 18:19:31,492 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 443 transitions. [2023-08-24 18:19:31,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 443 transitions. [2023-08-24 18:19:31,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:19:31,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 443 transitions. [2023-08-24 18:19:31,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,496 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,496 INFO L175 Difference]: Start difference. First operand has 59 places, 62 transitions, 244 flow. Second operand 3 states and 443 transitions. [2023-08-24 18:19:31,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 48 transitions, 200 flow [2023-08-24 18:19:31,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 48 transitions, 164 flow, removed 7 selfloop flow, removed 8 redundant places. [2023-08-24 18:19:31,499 INFO L231 Difference]: Finished difference. Result has 49 places, 43 transitions, 106 flow [2023-08-24 18:19:31,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=49, PETRI_TRANSITIONS=43} [2023-08-24 18:19:31,499 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -11 predicate places. [2023-08-24 18:19:31,500 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 43 transitions, 106 flow [2023-08-24 18:19:31,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:31,500 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:19:31,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-24 18:19:31,501 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:31,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:31,501 INFO L85 PathProgramCache]: Analyzing trace with hash 659776238, now seen corresponding path program 1 times [2023-08-24 18:19:31,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:31,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362443177] [2023-08-24 18:19:31,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:31,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:19:31,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:19:31,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:19:31,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362443177] [2023-08-24 18:19:31,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362443177] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:19:31,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:19:31,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:19:31,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635538848] [2023-08-24 18:19:31,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:19:31,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:19:31,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:19:31,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:19:31,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:19:31,537 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 274 [2023-08-24 18:19:31,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 43 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:19:31,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 274 [2023-08-24 18:19:31,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:19:31,625 INFO L124 PetriNetUnfolderBase]: 101/340 cut-off events. [2023-08-24 18:19:31,625 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-08-24 18:19:31,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 672 conditions, 340 events. 101/340 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1317 event pairs, 76 based on Foata normal form. 0/320 useless extension candidates. Maximal degree in co-relation 668. Up to 189 conditions per place. [2023-08-24 18:19:31,627 INFO L140 encePairwiseOnDemand]: 267/274 looper letters, 28 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2023-08-24 18:19:31,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 46 transitions, 180 flow [2023-08-24 18:19:31,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:19:31,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:19:31,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2023-08-24 18:19:31,629 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5316301703163017 [2023-08-24 18:19:31,629 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2023-08-24 18:19:31,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2023-08-24 18:19:31,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:19:31,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2023-08-24 18:19:31,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,632 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,632 INFO L175 Difference]: Start difference. First operand has 49 places, 43 transitions, 106 flow. Second operand 3 states and 437 transitions. [2023-08-24 18:19:31,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 46 transitions, 180 flow [2023-08-24 18:19:31,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 46 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 18:19:31,634 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 104 flow [2023-08-24 18:19:31,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2023-08-24 18:19:31,635 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -12 predicate places. [2023-08-24 18:19:31,635 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 104 flow [2023-08-24 18:19:31,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:31,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:19:31,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-24 18:19:31,636 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:31,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:31,636 INFO L85 PathProgramCache]: Analyzing trace with hash -874329719, now seen corresponding path program 1 times [2023-08-24 18:19:31,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:31,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064363010] [2023-08-24 18:19:31,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:31,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:19:31,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:19:31,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:19:31,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064363010] [2023-08-24 18:19:31,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064363010] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:19:31,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:19:31,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:19:31,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179571290] [2023-08-24 18:19:31,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:19:31,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:19:31,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:19:31,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:19:31,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:19:31,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 274 [2023-08-24 18:19:31,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:19:31,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 274 [2023-08-24 18:19:31,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:19:31,737 INFO L124 PetriNetUnfolderBase]: 96/325 cut-off events. [2023-08-24 18:19:31,737 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2023-08-24 18:19:31,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 648 conditions, 325 events. 96/325 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1241 event pairs, 91 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 643. Up to 229 conditions per place. [2023-08-24 18:19:31,739 INFO L140 encePairwiseOnDemand]: 271/274 looper letters, 28 selfloop transitions, 2 changer transitions 0/43 dead transitions. [2023-08-24 18:19:31,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 43 transitions, 169 flow [2023-08-24 18:19:31,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:19:31,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:19:31,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2023-08-24 18:19:31,740 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5194647201946472 [2023-08-24 18:19:31,741 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 427 transitions. [2023-08-24 18:19:31,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 427 transitions. [2023-08-24 18:19:31,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:19:31,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 427 transitions. [2023-08-24 18:19:31,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,744 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,744 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 104 flow. Second operand 3 states and 427 transitions. [2023-08-24 18:19:31,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 43 transitions, 169 flow [2023-08-24 18:19:31,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 43 transitions, 159 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:19:31,745 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 96 flow [2023-08-24 18:19:31,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=47, PETRI_TRANSITIONS=40} [2023-08-24 18:19:31,746 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -13 predicate places. [2023-08-24 18:19:31,746 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 96 flow [2023-08-24 18:19:31,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:31,747 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:19:31,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-24 18:19:31,747 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:31,747 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:31,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1197532919, now seen corresponding path program 1 times [2023-08-24 18:19:31,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:31,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973190228] [2023-08-24 18:19:31,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:31,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:19:31,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:19:31,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:19:31,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973190228] [2023-08-24 18:19:31,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973190228] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:19:31,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:19:31,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:19:31,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546104508] [2023-08-24 18:19:31,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:19:31,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:19:31,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:19:31,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:19:31,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:19:31,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 274 [2023-08-24 18:19:31,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:19:31,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 274 [2023-08-24 18:19:31,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:19:31,829 INFO L124 PetriNetUnfolderBase]: 91/312 cut-off events. [2023-08-24 18:19:31,830 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-08-24 18:19:31,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 312 events. 91/312 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1181 event pairs, 81 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 599. Up to 203 conditions per place. [2023-08-24 18:19:31,831 INFO L140 encePairwiseOnDemand]: 271/274 looper letters, 27 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2023-08-24 18:19:31,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 42 transitions, 159 flow [2023-08-24 18:19:31,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:19:31,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:19:31,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 426 transitions. [2023-08-24 18:19:31,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5182481751824818 [2023-08-24 18:19:31,833 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 426 transitions. [2023-08-24 18:19:31,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 426 transitions. [2023-08-24 18:19:31,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:19:31,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 426 transitions. [2023-08-24 18:19:31,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,836 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,836 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 96 flow. Second operand 3 states and 426 transitions. [2023-08-24 18:19:31,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 42 transitions, 159 flow [2023-08-24 18:19:31,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 42 transitions, 155 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:19:31,837 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 94 flow [2023-08-24 18:19:31,837 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2023-08-24 18:19:31,838 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -14 predicate places. [2023-08-24 18:19:31,838 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 94 flow [2023-08-24 18:19:31,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:31,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:31,838 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:19:31,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-24 18:19:31,839 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:31,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:31,839 INFO L85 PathProgramCache]: Analyzing trace with hash -695715557, now seen corresponding path program 1 times [2023-08-24 18:19:31,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:31,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373696399] [2023-08-24 18:19:31,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:31,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:19:32,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:19:32,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:19:32,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373696399] [2023-08-24 18:19:32,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373696399] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:19:32,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:19:32,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-24 18:19:32,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646535933] [2023-08-24 18:19:32,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:19:32,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-24 18:19:32,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:19:32,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-24 18:19:32,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-24 18:19:32,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 274 [2023-08-24 18:19:32,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 94 flow. Second operand has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:32,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:19:32,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 274 [2023-08-24 18:19:32,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:19:32,185 INFO L124 PetriNetUnfolderBase]: 109/413 cut-off events. [2023-08-24 18:19:32,185 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-08-24 18:19:32,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 413 events. 109/413 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1848 event pairs, 18 based on Foata normal form. 1/410 useless extension candidates. Maximal degree in co-relation 771. Up to 116 conditions per place. [2023-08-24 18:19:32,186 INFO L140 encePairwiseOnDemand]: 268/274 looper letters, 24 selfloop transitions, 2 changer transitions 35/75 dead transitions. [2023-08-24 18:19:32,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 75 transitions, 304 flow [2023-08-24 18:19:32,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-24 18:19:32,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-24 18:19:32,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1077 transitions. [2023-08-24 18:19:32,189 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5615224191866528 [2023-08-24 18:19:32,189 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1077 transitions. [2023-08-24 18:19:32,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1077 transitions. [2023-08-24 18:19:32,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:19:32,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1077 transitions. [2023-08-24 18:19:32,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 153.85714285714286) internal successors, (1077), 7 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:32,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 274.0) internal successors, (2192), 8 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:32,195 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 274.0) internal successors, (2192), 8 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:32,195 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 94 flow. Second operand 7 states and 1077 transitions. [2023-08-24 18:19:32,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 75 transitions, 304 flow [2023-08-24 18:19:32,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 75 transitions, 296 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:19:32,196 INFO L231 Difference]: Finished difference. Result has 54 places, 39 transitions, 104 flow [2023-08-24 18:19:32,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=104, PETRI_PLACES=54, PETRI_TRANSITIONS=39} [2023-08-24 18:19:32,197 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2023-08-24 18:19:32,197 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 39 transitions, 104 flow [2023-08-24 18:19:32,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:32,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:32,198 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:19:32,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-24 18:19:32,198 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:32,199 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:32,199 INFO L85 PathProgramCache]: Analyzing trace with hash -306255131, now seen corresponding path program 2 times [2023-08-24 18:19:32,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:32,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821884323] [2023-08-24 18:19:32,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:32,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:32,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:19:32,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:19:32,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:19:32,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821884323] [2023-08-24 18:19:32,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821884323] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:19:32,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:19:32,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-24 18:19:32,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440573365] [2023-08-24 18:19:32,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:19:32,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-24 18:19:32,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:19:32,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-24 18:19:32,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-24 18:19:32,393 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 274 [2023-08-24 18:19:32,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 39 transitions, 104 flow. Second operand has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:32,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:19:32,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 274 [2023-08-24 18:19:32,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:19:32,509 INFO L124 PetriNetUnfolderBase]: 46/186 cut-off events. [2023-08-24 18:19:32,510 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-08-24 18:19:32,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 186 events. 46/186 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 517 event pairs, 10 based on Foata normal form. 1/186 useless extension candidates. Maximal degree in co-relation 352. Up to 71 conditions per place. [2023-08-24 18:19:32,510 INFO L140 encePairwiseOnDemand]: 268/274 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2023-08-24 18:19:32,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 186 flow [2023-08-24 18:19:32,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-24 18:19:32,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-24 18:19:32,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1049 transitions. [2023-08-24 18:19:32,514 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5469238790406674 [2023-08-24 18:19:32,514 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1049 transitions. [2023-08-24 18:19:32,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1049 transitions. [2023-08-24 18:19:32,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:19:32,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1049 transitions. [2023-08-24 18:19:32,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 149.85714285714286) internal successors, (1049), 7 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:32,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 274.0) internal successors, (2192), 8 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:32,520 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 274.0) internal successors, (2192), 8 states have internal predecessors, (2192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:32,520 INFO L175 Difference]: Start difference. First operand has 54 places, 39 transitions, 104 flow. Second operand 7 states and 1049 transitions. [2023-08-24 18:19:32,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 186 flow [2023-08-24 18:19:32,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 47 transitions, 178 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-24 18:19:32,521 INFO L231 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2023-08-24 18:19:32,522 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=51, PETRI_TRANSITIONS=0} [2023-08-24 18:19:32,523 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -9 predicate places. [2023-08-24 18:19:32,523 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 0 transitions, 0 flow [2023-08-24 18:19:32,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:32,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (24 of 25 remaining) [2023-08-24 18:19:32,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2023-08-24 18:19:32,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2023-08-24 18:19:32,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2023-08-24 18:19:32,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2023-08-24 18:19:32,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2023-08-24 18:19:32,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2023-08-24 18:19:32,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2023-08-24 18:19:32,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2023-08-24 18:19:32,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2023-08-24 18:19:32,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2023-08-24 18:19:32,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2023-08-24 18:19:32,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2023-08-24 18:19:32,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2023-08-24 18:19:32,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONASSERT (10 of 25 remaining) [2023-08-24 18:19:32,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 25 remaining) [2023-08-24 18:19:32,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 25 remaining) [2023-08-24 18:19:32,528 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2023-08-24 18:19:32,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2023-08-24 18:19:32,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2023-08-24 18:19:32,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2023-08-24 18:19:32,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2023-08-24 18:19:32,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2023-08-24 18:19:32,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2023-08-24 18:19:32,531 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2023-08-24 18:19:32,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-24 18:19:32,531 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:19:32,536 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 18:19:32,536 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 18:19:32,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 06:19:32 BasicIcfg [2023-08-24 18:19:32,539 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 18:19:32,540 INFO L158 Benchmark]: Toolchain (without parser) took 7164.83ms. Allocated memory was 394.3MB in the beginning and 478.2MB in the end (delta: 83.9MB). Free memory was 368.9MB in the beginning and 256.9MB in the end (delta: 112.0MB). Peak memory consumption was 197.8MB. Max. memory is 16.0GB. [2023-08-24 18:19:32,540 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 394.3MB. Free memory was 371.7MB in the beginning and 371.5MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 18:19:32,540 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.64ms. Allocated memory is still 394.3MB. Free memory was 368.9MB in the beginning and 349.2MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-24 18:19:32,541 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.81ms. Allocated memory is still 394.3MB. Free memory was 349.2MB in the beginning and 347.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 18:19:32,541 INFO L158 Benchmark]: Boogie Preprocessor took 23.61ms. Allocated memory is still 394.3MB. Free memory was 347.1MB in the beginning and 345.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 18:19:32,541 INFO L158 Benchmark]: RCFGBuilder took 410.24ms. Allocated memory is still 394.3MB. Free memory was 345.0MB in the beginning and 327.0MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-24 18:19:32,542 INFO L158 Benchmark]: TraceAbstraction took 6265.25ms. Allocated memory was 394.3MB in the beginning and 478.2MB in the end (delta: 83.9MB). Free memory was 326.2MB in the beginning and 256.9MB in the end (delta: 69.3MB). Peak memory consumption was 155.8MB. Max. memory is 16.0GB. [2023-08-24 18:19:32,543 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 394.3MB. Free memory was 371.7MB in the beginning and 371.5MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 422.64ms. Allocated memory is still 394.3MB. Free memory was 368.9MB in the beginning and 349.2MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 36.81ms. Allocated memory is still 394.3MB. Free memory was 349.2MB in the beginning and 347.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.61ms. Allocated memory is still 394.3MB. Free memory was 347.1MB in the beginning and 345.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 410.24ms. Allocated memory is still 394.3MB. Free memory was 345.0MB in the beginning and 327.0MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 6265.25ms. Allocated memory was 394.3MB in the beginning and 478.2MB in the end (delta: 83.9MB). Free memory was 326.2MB in the beginning and 256.9MB in the end (delta: 69.3MB). Peak memory consumption was 155.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 257]: Unsoundness Warning unspecified type, defaulting to int C: short [257] - GenericResultAtLocation [Line: 257]: Unsoundness Warning unspecified type, defaulting to int C: short [257] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 150 PlacesBefore, 60 PlacesAfterwards, 144 TransitionsBefore, 53 TransitionsAfterwards, 3576 CoEnabledTransitionPairs, 7 FixpointIterations, 66 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 115 TotalNumberOfCompositions, 17081 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6907, independent: 6355, independent conditional: 0, independent unconditional: 6355, dependent: 552, dependent conditional: 0, dependent unconditional: 552, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1856, independent: 1793, independent conditional: 0, independent unconditional: 1793, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6907, independent: 4562, independent conditional: 0, independent unconditional: 4562, dependent: 489, dependent conditional: 0, dependent unconditional: 489, unknown: 1856, unknown conditional: 0, unknown unconditional: 1856] , Statistics on independence cache: Total cache size (in pairs): 400, Positive cache size: 362, Positive conditional cache size: 0, Positive unconditional cache size: 362, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 719]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 20]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 219 locations, 25 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 748 IncrementalHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 42 mSDtfsCounter, 748 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=4, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 638 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-24 18:19:32,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...