/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-atomic/lamport-b.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 18:21:52,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 18:21:52,952 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 18:21:52,958 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 18:21:52,958 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 18:21:52,984 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 18:21:52,985 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 18:21:52,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 18:21:52,989 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 18:21:52,992 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 18:21:52,992 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 18:21:52,993 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 18:21:52,993 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 18:21:52,994 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 18:21:52,994 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 18:21:52,994 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 18:21:52,994 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 18:21:52,994 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 18:21:52,994 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 18:21:52,995 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 18:21:52,995 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 18:21:52,995 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 18:21:52,995 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 18:21:52,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 18:21:52,996 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 18:21:52,996 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 18:21:52,996 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 18:21:52,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:21:52,997 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 18:21:52,997 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 18:21:52,997 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 18:21:52,998 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 18:21:52,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 18:21:52,998 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 18:21:52,998 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 18:21:52,998 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-24 18:21:53,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 18:21:53,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 18:21:53,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 18:21:53,267 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 18:21:53,269 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 18:21:53,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport-b.i [2023-08-24 18:21:54,216 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 18:21:54,447 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 18:21:54,447 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport-b.i [2023-08-24 18:21:54,458 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0300228/72b362302d0b40eab556d2d764c54058/FLAG058157316 [2023-08-24 18:21:54,470 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0300228/72b362302d0b40eab556d2d764c54058 [2023-08-24 18:21:54,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 18:21:54,474 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 18:21:54,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 18:21:54,477 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 18:21:54,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 18:21:54,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:21:54" (1/1) ... [2023-08-24 18:21:54,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@569234a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:21:54, skipping insertion in model container [2023-08-24 18:21:54,480 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:21:54" (1/1) ... [2023-08-24 18:21:54,517 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 18:21:54,776 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:21:54,783 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 18:21:54,809 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [249] [2023-08-24 18:21:54,810 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [249] [2023-08-24 18:21:54,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:21:54,866 INFO L206 MainTranslator]: Completed translation [2023-08-24 18:21:54,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:21:54 WrapperNode [2023-08-24 18:21:54,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 18:21:54,868 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 18:21:54,868 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 18:21:54,868 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 18:21:54,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:21:54" (1/1) ... [2023-08-24 18:21:54,901 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:21:54" (1/1) ... [2023-08-24 18:21:54,928 INFO L138 Inliner]: procedures = 167, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 226 [2023-08-24 18:21:54,928 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 18:21:54,929 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 18:21:54,929 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 18:21:54,929 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 18:21:54,935 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:21:54" (1/1) ... [2023-08-24 18:21:54,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:21:54" (1/1) ... [2023-08-24 18:21:54,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:21:54" (1/1) ... [2023-08-24 18:21:54,954 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:21:54" (1/1) ... [2023-08-24 18:21:54,959 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:21:54" (1/1) ... [2023-08-24 18:21:54,961 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:21:54" (1/1) ... [2023-08-24 18:21:54,962 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:21:54" (1/1) ... [2023-08-24 18:21:54,963 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:21:54" (1/1) ... [2023-08-24 18:21:54,970 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 18:21:54,971 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 18:21:54,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 18:21:54,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 18:21:54,971 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:21:54" (1/1) ... [2023-08-24 18:21:54,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:21:54,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 18:21:55,011 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 18:21:55,029 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 18:21:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 18:21:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-08-24 18:21:55,040 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-08-24 18:21:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-24 18:21:55,040 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-24 18:21:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 18:21:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 18:21:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 18:21:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 18:21:55,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 18:21:55,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 18:21:55,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 18:21:55,043 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 18:21:55,168 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 18:21:55,169 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 18:21:55,415 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 18:21:55,422 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 18:21:55,422 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-24 18:21:55,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:21:55 BoogieIcfgContainer [2023-08-24 18:21:55,424 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 18:21:55,425 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 18:21:55,425 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 18:21:55,427 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 18:21:55,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 06:21:54" (1/3) ... [2023-08-24 18:21:55,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4836690a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:21:55, skipping insertion in model container [2023-08-24 18:21:55,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:21:54" (2/3) ... [2023-08-24 18:21:55,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4836690a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:21:55, skipping insertion in model container [2023-08-24 18:21:55,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:21:55" (3/3) ... [2023-08-24 18:21:55,429 INFO L112 eAbstractionObserver]: Analyzing ICFG lamport-b.i [2023-08-24 18:21:55,445 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 18:21:55,445 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-08-24 18:21:55,445 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 18:21:55,534 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-24 18:21:55,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 236 places, 255 transitions, 526 flow [2023-08-24 18:21:55,627 INFO L124 PetriNetUnfolderBase]: 26/253 cut-off events. [2023-08-24 18:21:55,627 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 18:21:55,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 253 events. 26/253 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 796 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 219. Up to 5 conditions per place. [2023-08-24 18:21:55,642 INFO L82 GeneralOperation]: Start removeDead. Operand has 236 places, 255 transitions, 526 flow [2023-08-24 18:21:55,654 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 225 places, 244 transitions, 497 flow [2023-08-24 18:21:55,656 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:21:55,661 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 225 places, 244 transitions, 497 flow [2023-08-24 18:21:55,663 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 225 places, 244 transitions, 497 flow [2023-08-24 18:21:55,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 225 places, 244 transitions, 497 flow [2023-08-24 18:21:55,694 INFO L124 PetriNetUnfolderBase]: 26/244 cut-off events. [2023-08-24 18:21:55,694 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-24 18:21:55,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 244 events. 26/244 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 802 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 219. Up to 5 conditions per place. [2023-08-24 18:21:55,703 INFO L119 LiptonReduction]: Number of co-enabled transitions 26600 [2023-08-24 18:21:57,564 INFO L134 LiptonReduction]: Checked pairs total: 138598 [2023-08-24 18:21:57,564 INFO L136 LiptonReduction]: Total number of compositions: 113 [2023-08-24 18:21:57,579 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 18:21:57,584 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;@2d7d9849, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 18:21:57,584 INFO L358 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2023-08-24 18:21:57,591 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 18:21:57,592 INFO L124 PetriNetUnfolderBase]: 2/12 cut-off events. [2023-08-24 18:21:57,592 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:21:57,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:21:57,592 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-24 18:21:57,592 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-24 18:21:57,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:21:57,596 INFO L85 PathProgramCache]: Analyzing trace with hash 916450334, now seen corresponding path program 1 times [2023-08-24 18:21:57,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:21:57,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861585638] [2023-08-24 18:21:57,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:21:57,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:21:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:21:57,752 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 18:21:57,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:21:57,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861585638] [2023-08-24 18:21:57,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861585638] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:21:57,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:21:57,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 18:21:57,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593683609] [2023-08-24 18:21:57,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:21:57,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 18:21:57,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:21:57,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 18:21:57,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 18:21:57,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 368 [2023-08-24 18:21:57,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 163 transitions, 335 flow. Second operand has 2 states, 2 states have (on average 237.5) internal successors, (475), 2 states have internal predecessors, (475), 0 states have call successors, (0), 0 states 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 18:21:57,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:21:57,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 368 [2023-08-24 18:21:57,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:21:58,194 INFO L124 PetriNetUnfolderBase]: 1619/4764 cut-off events. [2023-08-24 18:21:58,195 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2023-08-24 18:21:58,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7044 conditions, 4764 events. 1619/4764 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 40123 event pairs, 1257 based on Foata normal form. 331/4238 useless extension candidates. Maximal degree in co-relation 6858. Up to 2213 conditions per place. [2023-08-24 18:21:58,214 INFO L140 encePairwiseOnDemand]: 352/368 looper letters, 46 selfloop transitions, 0 changer transitions 0/144 dead transitions. [2023-08-24 18:21:58,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 144 transitions, 389 flow [2023-08-24 18:21:58,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 18:21:58,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 18:21:58,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 532 transitions. [2023-08-24 18:21:58,226 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7228260869565217 [2023-08-24 18:21:58,227 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 532 transitions. [2023-08-24 18:21:58,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 532 transitions. [2023-08-24 18:21:58,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:21:58,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 532 transitions. [2023-08-24 18:21:58,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 266.0) internal successors, (532), 2 states have internal predecessors, (532), 0 states have call successors, (0), 0 states 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 18:21:58,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:21:58,238 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:21:58,239 INFO L175 Difference]: Start difference. First operand has 144 places, 163 transitions, 335 flow. Second operand 2 states and 532 transitions. [2023-08-24 18:21:58,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 144 transitions, 389 flow [2023-08-24 18:21:58,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 144 transitions, 384 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-24 18:21:58,246 INFO L231 Difference]: Finished difference. Result has 137 places, 144 transitions, 292 flow [2023-08-24 18:21:58,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=292, PETRI_PLACES=137, PETRI_TRANSITIONS=144} [2023-08-24 18:21:58,249 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -7 predicate places. [2023-08-24 18:21:58,249 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 144 transitions, 292 flow [2023-08-24 18:21:58,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 237.5) internal successors, (475), 2 states have internal predecessors, (475), 0 states have call successors, (0), 0 states 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 18:21:58,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:21:58,250 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-24 18:21:58,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 18:21:58,250 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-24 18:21:58,251 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:21:58,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1657555410, now seen corresponding path program 1 times [2023-08-24 18:21:58,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:21:58,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040637992] [2023-08-24 18:21:58,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:21:58,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:21:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:21:58,322 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 18:21:58,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:21:58,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040637992] [2023-08-24 18:21:58,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040637992] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:21:58,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:21:58,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:21:58,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286084384] [2023-08-24 18:21:58,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:21:58,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:21:58,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:21:58,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:21:58,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:21:58,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 368 [2023-08-24 18:21:58,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 144 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states 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 18:21:58,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:21:58,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 368 [2023-08-24 18:21:58,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:21:58,652 INFO L124 PetriNetUnfolderBase]: 2467/6184 cut-off events. [2023-08-24 18:21:58,653 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 18:21:58,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9794 conditions, 6184 events. 2467/6184 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 50256 event pairs, 1821 based on Foata normal form. 0/4966 useless extension candidates. Maximal degree in co-relation 9791. Up to 3283 conditions per place. [2023-08-24 18:21:58,680 INFO L140 encePairwiseOnDemand]: 363/368 looper letters, 79 selfloop transitions, 4 changer transitions 0/171 dead transitions. [2023-08-24 18:21:58,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 171 transitions, 514 flow [2023-08-24 18:21:58,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:21:58,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:21:58,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 738 transitions. [2023-08-24 18:21:58,682 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6684782608695652 [2023-08-24 18:21:58,682 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 738 transitions. [2023-08-24 18:21:58,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 738 transitions. [2023-08-24 18:21:58,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:21:58,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 738 transitions. [2023-08-24 18:21:58,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 0 states have call successors, (0), 0 states 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 18:21:58,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states 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 18:21:58,688 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states 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 18:21:58,688 INFO L175 Difference]: Start difference. First operand has 137 places, 144 transitions, 292 flow. Second operand 3 states and 738 transitions. [2023-08-24 18:21:58,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 171 transitions, 514 flow [2023-08-24 18:21:58,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 171 transitions, 514 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:21:58,693 INFO L231 Difference]: Finished difference. Result has 141 places, 147 transitions, 322 flow [2023-08-24 18:21:58,693 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=141, PETRI_TRANSITIONS=147} [2023-08-24 18:21:58,694 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -3 predicate places. [2023-08-24 18:21:58,694 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 147 transitions, 322 flow [2023-08-24 18:21:58,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states 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 18:21:58,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:21:58,695 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:21:58,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 18:21:58,696 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-24 18:21:58,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:21:58,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1136795139, now seen corresponding path program 1 times [2023-08-24 18:21:58,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:21:58,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54751708] [2023-08-24 18:21:58,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:21:58,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:21:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:21:58,752 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 18:21:58,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:21:58,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54751708] [2023-08-24 18:21:58,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54751708] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:21:58,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:21:58,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:21:58,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822987525] [2023-08-24 18:21:58,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:21:58,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:21:58,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:21:58,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:21:58,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:21:58,755 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 368 [2023-08-24 18:21:58,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 147 transitions, 322 flow. Second operand has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states 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 18:21:58,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:21:58,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 368 [2023-08-24 18:21:58,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:21:59,110 INFO L124 PetriNetUnfolderBase]: 2516/6374 cut-off events. [2023-08-24 18:21:59,110 INFO L125 PetriNetUnfolderBase]: For 383/432 co-relation queries the response was YES. [2023-08-24 18:21:59,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10448 conditions, 6374 events. 2516/6374 cut-off events. For 383/432 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 52834 event pairs, 1802 based on Foata normal form. 0/5110 useless extension candidates. Maximal degree in co-relation 10443. Up to 3366 conditions per place. [2023-08-24 18:21:59,142 INFO L140 encePairwiseOnDemand]: 363/368 looper letters, 81 selfloop transitions, 4 changer transitions 0/176 dead transitions. [2023-08-24 18:21:59,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 176 transitions, 561 flow [2023-08-24 18:21:59,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:21:59,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:21:59,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 738 transitions. [2023-08-24 18:21:59,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6684782608695652 [2023-08-24 18:21:59,144 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 738 transitions. [2023-08-24 18:21:59,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 738 transitions. [2023-08-24 18:21:59,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:21:59,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 738 transitions. [2023-08-24 18:21:59,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 0 states have call successors, (0), 0 states 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 18:21:59,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states 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 18:21:59,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states 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 18:21:59,148 INFO L175 Difference]: Start difference. First operand has 141 places, 147 transitions, 322 flow. Second operand 3 states and 738 transitions. [2023-08-24 18:21:59,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 176 transitions, 561 flow [2023-08-24 18:21:59,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 176 transitions, 549 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:21:59,151 INFO L231 Difference]: Finished difference. Result has 143 places, 150 transitions, 344 flow [2023-08-24 18:21:59,151 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=143, PETRI_TRANSITIONS=150} [2023-08-24 18:21:59,152 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -1 predicate places. [2023-08-24 18:21:59,152 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 150 transitions, 344 flow [2023-08-24 18:21:59,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states 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 18:21:59,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:21:59,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:21:59,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 18:21:59,153 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-24 18:21:59,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:21:59,153 INFO L85 PathProgramCache]: Analyzing trace with hash -993367207, now seen corresponding path program 1 times [2023-08-24 18:21:59,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:21:59,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44188709] [2023-08-24 18:21:59,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:21:59,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:21:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:21:59,171 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 18:21:59,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:21:59,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44188709] [2023-08-24 18:21:59,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44188709] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:21:59,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:21:59,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:21:59,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95210852] [2023-08-24 18:21:59,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:21:59,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:21:59,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:21:59,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:21:59,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:21:59,174 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 368 [2023-08-24 18:21:59,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 150 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states 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 18:21:59,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:21:59,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 368 [2023-08-24 18:21:59,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:21:59,607 INFO L124 PetriNetUnfolderBase]: 2667/6993 cut-off events. [2023-08-24 18:21:59,607 INFO L125 PetriNetUnfolderBase]: For 530/615 co-relation queries the response was YES. [2023-08-24 18:21:59,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11481 conditions, 6993 events. 2667/6993 cut-off events. For 530/615 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 59998 event pairs, 1847 based on Foata normal form. 0/5701 useless extension candidates. Maximal degree in co-relation 11475. Up to 3533 conditions per place. [2023-08-24 18:21:59,636 INFO L140 encePairwiseOnDemand]: 362/368 looper letters, 81 selfloop transitions, 5 changer transitions 0/179 dead transitions. [2023-08-24 18:21:59,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 179 transitions, 586 flow [2023-08-24 18:21:59,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:21:59,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:21:59,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 747 transitions. [2023-08-24 18:21:59,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6766304347826086 [2023-08-24 18:21:59,638 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 747 transitions. [2023-08-24 18:21:59,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 747 transitions. [2023-08-24 18:21:59,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:21:59,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 747 transitions. [2023-08-24 18:21:59,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states 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 18:21:59,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states 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 18:21:59,642 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states 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 18:21:59,642 INFO L175 Difference]: Start difference. First operand has 143 places, 150 transitions, 344 flow. Second operand 3 states and 747 transitions. [2023-08-24 18:21:59,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 179 transitions, 586 flow [2023-08-24 18:21:59,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 179 transitions, 574 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:21:59,646 INFO L231 Difference]: Finished difference. Result has 145 places, 154 transitions, 374 flow [2023-08-24 18:21:59,646 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=145, PETRI_TRANSITIONS=154} [2023-08-24 18:21:59,647 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 1 predicate places. [2023-08-24 18:21:59,647 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 154 transitions, 374 flow [2023-08-24 18:21:59,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states 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 18:21:59,647 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:21:59,647 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:21:59,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 18:21:59,648 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-24 18:21:59,648 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:21:59,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1143117092, now seen corresponding path program 1 times [2023-08-24 18:21:59,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:21:59,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470003513] [2023-08-24 18:21:59,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:21:59,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:21:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:21:59,666 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 18:21:59,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:21:59,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470003513] [2023-08-24 18:21:59,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470003513] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:21:59,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:21:59,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:21:59,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827615902] [2023-08-24 18:21:59,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:21:59,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:21:59,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:21:59,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:21:59,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:21:59,668 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 368 [2023-08-24 18:21:59,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 154 transitions, 374 flow. Second operand has 3 states, 3 states have (on average 202.0) internal successors, (606), 3 states have internal predecessors, (606), 0 states have call successors, (0), 0 states 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 18:21:59,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:21:59,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 368 [2023-08-24 18:21:59,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:22:00,414 INFO L124 PetriNetUnfolderBase]: 6231/14483 cut-off events. [2023-08-24 18:22:00,414 INFO L125 PetriNetUnfolderBase]: For 1102/1283 co-relation queries the response was YES. [2023-08-24 18:22:00,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25958 conditions, 14483 events. 6231/14483 cut-off events. For 1102/1283 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 129007 event pairs, 2067 based on Foata normal form. 0/12119 useless extension candidates. Maximal degree in co-relation 25951. Up to 5392 conditions per place. [2023-08-24 18:22:00,488 INFO L140 encePairwiseOnDemand]: 340/368 looper letters, 125 selfloop transitions, 21 changer transitions 0/222 dead transitions. [2023-08-24 18:22:00,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 222 transitions, 833 flow [2023-08-24 18:22:00,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:22:00,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:22:00,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 743 transitions. [2023-08-24 18:22:00,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6730072463768116 [2023-08-24 18:22:00,490 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 743 transitions. [2023-08-24 18:22:00,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 743 transitions. [2023-08-24 18:22:00,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:22:00,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 743 transitions. [2023-08-24 18:22:00,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.66666666666666) internal successors, (743), 3 states have internal predecessors, (743), 0 states have call successors, (0), 0 states 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 18:22:00,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states 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 18:22:00,494 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states 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 18:22:00,494 INFO L175 Difference]: Start difference. First operand has 145 places, 154 transitions, 374 flow. Second operand 3 states and 743 transitions. [2023-08-24 18:22:00,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 222 transitions, 833 flow [2023-08-24 18:22:00,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 222 transitions, 817 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:22:00,499 INFO L231 Difference]: Finished difference. Result has 147 places, 175 transitions, 552 flow [2023-08-24 18:22:00,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=552, PETRI_PLACES=147, PETRI_TRANSITIONS=175} [2023-08-24 18:22:00,500 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 3 predicate places. [2023-08-24 18:22:00,500 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 175 transitions, 552 flow [2023-08-24 18:22:00,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.0) internal successors, (606), 3 states have internal predecessors, (606), 0 states have call successors, (0), 0 states 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 18:22:00,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:22:00,500 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:22:00,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-24 18:22:00,501 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-24 18:22:00,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:22:00,501 INFO L85 PathProgramCache]: Analyzing trace with hash -445995473, now seen corresponding path program 1 times [2023-08-24 18:22:00,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:22:00,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409518819] [2023-08-24 18:22:00,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:22:00,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:22:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:22:00,519 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 18:22:00,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:22:00,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409518819] [2023-08-24 18:22:00,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409518819] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:22:00,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:22:00,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:22:00,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487305454] [2023-08-24 18:22:00,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:22:00,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:22:00,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:22:00,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:22:00,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:22:00,522 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 368 [2023-08-24 18:22:00,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 175 transitions, 552 flow. Second operand has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:22:00,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:22:00,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 368 [2023-08-24 18:22:00,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:22:01,360 INFO L124 PetriNetUnfolderBase]: 5163/13601 cut-off events. [2023-08-24 18:22:01,361 INFO L125 PetriNetUnfolderBase]: For 2527/2716 co-relation queries the response was YES. [2023-08-24 18:22:01,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25373 conditions, 13601 events. 5163/13601 cut-off events. For 2527/2716 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 130302 event pairs, 3402 based on Foata normal form. 18/11595 useless extension candidates. Maximal degree in co-relation 25365. Up to 7226 conditions per place. [2023-08-24 18:22:01,406 INFO L140 encePairwiseOnDemand]: 363/368 looper letters, 95 selfloop transitions, 5 changer transitions 0/209 dead transitions. [2023-08-24 18:22:01,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 209 transitions, 859 flow [2023-08-24 18:22:01,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:22:01,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:22:01,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 748 transitions. [2023-08-24 18:22:01,409 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.677536231884058 [2023-08-24 18:22:01,409 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 748 transitions. [2023-08-24 18:22:01,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 748 transitions. [2023-08-24 18:22:01,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:22:01,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 748 transitions. [2023-08-24 18:22:01,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 0 states have call successors, (0), 0 states 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 18:22:01,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states 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 18:22:01,412 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states 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 18:22:01,413 INFO L175 Difference]: Start difference. First operand has 147 places, 175 transitions, 552 flow. Second operand 3 states and 748 transitions. [2023-08-24 18:22:01,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 209 transitions, 859 flow [2023-08-24 18:22:01,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 209 transitions, 811 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:22:01,422 INFO L231 Difference]: Finished difference. Result has 148 places, 178 transitions, 541 flow [2023-08-24 18:22:01,422 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=541, PETRI_PLACES=148, PETRI_TRANSITIONS=178} [2023-08-24 18:22:01,423 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 4 predicate places. [2023-08-24 18:22:01,425 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 178 transitions, 541 flow [2023-08-24 18:22:01,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:22:01,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:22:01,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:22:01,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-24 18:22:01,427 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-24 18:22:01,428 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:22:01,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1755959376, now seen corresponding path program 1 times [2023-08-24 18:22:01,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:22:01,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799939415] [2023-08-24 18:22:01,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:22:01,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:22:01,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:22:01,461 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 18:22:01,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:22:01,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799939415] [2023-08-24 18:22:01,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799939415] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:22:01,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:22:01,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:22:01,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904837445] [2023-08-24 18:22:01,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:22:01,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:22:01,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:22:01,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:22:01,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:22:01,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 368 [2023-08-24 18:22:01,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 178 transitions, 541 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states 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 18:22:01,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:22:01,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 368 [2023-08-24 18:22:01,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:22:02,739 INFO L124 PetriNetUnfolderBase]: 7042/17038 cut-off events. [2023-08-24 18:22:02,739 INFO L125 PetriNetUnfolderBase]: For 2533/3094 co-relation queries the response was YES. [2023-08-24 18:22:02,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33224 conditions, 17038 events. 7042/17038 cut-off events. For 2533/3094 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 164754 event pairs, 2357 based on Foata normal form. 170/14890 useless extension candidates. Maximal degree in co-relation 33215. Up to 5876 conditions per place. [2023-08-24 18:22:02,801 INFO L140 encePairwiseOnDemand]: 349/368 looper letters, 129 selfloop transitions, 11 changer transitions 0/242 dead transitions. [2023-08-24 18:22:02,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 242 transitions, 1006 flow [2023-08-24 18:22:02,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:22:02,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:22:02,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 770 transitions. [2023-08-24 18:22:02,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.697463768115942 [2023-08-24 18:22:02,803 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 770 transitions. [2023-08-24 18:22:02,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 770 transitions. [2023-08-24 18:22:02,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:22:02,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 770 transitions. [2023-08-24 18:22:02,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 0 states have call successors, (0), 0 states 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 18:22:02,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states 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 18:22:02,806 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states 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 18:22:02,806 INFO L175 Difference]: Start difference. First operand has 148 places, 178 transitions, 541 flow. Second operand 3 states and 770 transitions. [2023-08-24 18:22:02,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 242 transitions, 1006 flow [2023-08-24 18:22:02,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 242 transitions, 999 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 18:22:02,812 INFO L231 Difference]: Finished difference. Result has 151 places, 188 transitions, 636 flow [2023-08-24 18:22:02,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=636, PETRI_PLACES=151, PETRI_TRANSITIONS=188} [2023-08-24 18:22:02,813 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 7 predicate places. [2023-08-24 18:22:02,813 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 188 transitions, 636 flow [2023-08-24 18:22:02,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states 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 18:22:02,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:22:02,814 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:22:02,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-24 18:22:02,814 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-24 18:22:02,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:22:02,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1755996888, now seen corresponding path program 1 times [2023-08-24 18:22:02,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:22:02,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765565836] [2023-08-24 18:22:02,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:22:02,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:22:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:22:02,829 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 18:22:02,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:22:02,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765565836] [2023-08-24 18:22:02,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765565836] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:22:02,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:22:02,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:22:02,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234007435] [2023-08-24 18:22:02,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:22:02,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:22:02,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:22:02,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:22:02,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:22:02,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 368 [2023-08-24 18:22:02,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 188 transitions, 636 flow. Second operand has 3 states, 3 states have (on average 201.0) internal successors, (603), 3 states have internal predecessors, (603), 0 states have call successors, (0), 0 states 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 18:22:02,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:22:02,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 368 [2023-08-24 18:22:02,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:22:04,080 INFO L124 PetriNetUnfolderBase]: 8043/18797 cut-off events. [2023-08-24 18:22:04,080 INFO L125 PetriNetUnfolderBase]: For 4366/4917 co-relation queries the response was YES. [2023-08-24 18:22:04,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39667 conditions, 18797 events. 8043/18797 cut-off events. For 4366/4917 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 180742 event pairs, 5334 based on Foata normal form. 50/16230 useless extension candidates. Maximal degree in co-relation 39657. Up to 12212 conditions per place. [2023-08-24 18:22:04,223 INFO L140 encePairwiseOnDemand]: 359/368 looper letters, 132 selfloop transitions, 14 changer transitions 0/232 dead transitions. [2023-08-24 18:22:04,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 232 transitions, 1070 flow [2023-08-24 18:22:04,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:22:04,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:22:04,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 703 transitions. [2023-08-24 18:22:04,226 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6367753623188406 [2023-08-24 18:22:04,226 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 703 transitions. [2023-08-24 18:22:04,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 703 transitions. [2023-08-24 18:22:04,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:22:04,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 703 transitions. [2023-08-24 18:22:04,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:22:04,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states 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 18:22:04,232 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states 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 18:22:04,232 INFO L175 Difference]: Start difference. First operand has 151 places, 188 transitions, 636 flow. Second operand 3 states and 703 transitions. [2023-08-24 18:22:04,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 232 transitions, 1070 flow [2023-08-24 18:22:04,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 232 transitions, 1048 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:22:04,253 INFO L231 Difference]: Finished difference. Result has 152 places, 200 transitions, 728 flow [2023-08-24 18:22:04,253 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=728, PETRI_PLACES=152, PETRI_TRANSITIONS=200} [2023-08-24 18:22:04,253 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 8 predicate places. [2023-08-24 18:22:04,253 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 200 transitions, 728 flow [2023-08-24 18:22:04,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.0) internal successors, (603), 3 states have internal predecessors, (603), 0 states have call successors, (0), 0 states 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 18:22:04,254 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:22:04,254 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 18:22:04,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-24 18:22:04,254 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-24 18:22:04,254 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:22:04,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1851576756, now seen corresponding path program 1 times [2023-08-24 18:22:04,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:22:04,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296859754] [2023-08-24 18:22:04,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:22:04,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:22:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:22:04,264 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 18:22:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:22:04,280 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 18:22:04,280 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 18:22:04,280 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (67 of 68 remaining) [2023-08-24 18:22:04,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (66 of 68 remaining) [2023-08-24 18:22:04,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (65 of 68 remaining) [2023-08-24 18:22:04,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (64 of 68 remaining) [2023-08-24 18:22:04,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (63 of 68 remaining) [2023-08-24 18:22:04,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONASSERT (62 of 68 remaining) [2023-08-24 18:22:04,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (61 of 68 remaining) [2023-08-24 18:22:04,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (60 of 68 remaining) [2023-08-24 18:22:04,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (59 of 68 remaining) [2023-08-24 18:22:04,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (58 of 68 remaining) [2023-08-24 18:22:04,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (57 of 68 remaining) [2023-08-24 18:22:04,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (56 of 68 remaining) [2023-08-24 18:22:04,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (55 of 68 remaining) [2023-08-24 18:22:04,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (54 of 68 remaining) [2023-08-24 18:22:04,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (53 of 68 remaining) [2023-08-24 18:22:04,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (52 of 68 remaining) [2023-08-24 18:22:04,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (51 of 68 remaining) [2023-08-24 18:22:04,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (50 of 68 remaining) [2023-08-24 18:22:04,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (49 of 68 remaining) [2023-08-24 18:22:04,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (48 of 68 remaining) [2023-08-24 18:22:04,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (47 of 68 remaining) [2023-08-24 18:22:04,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONASSERT (46 of 68 remaining) [2023-08-24 18:22:04,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (45 of 68 remaining) [2023-08-24 18:22:04,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (44 of 68 remaining) [2023-08-24 18:22:04,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (43 of 68 remaining) [2023-08-24 18:22:04,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 68 remaining) [2023-08-24 18:22:04,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 68 remaining) [2023-08-24 18:22:04,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 68 remaining) [2023-08-24 18:22:04,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (39 of 68 remaining) [2023-08-24 18:22:04,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (38 of 68 remaining) [2023-08-24 18:22:04,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (37 of 68 remaining) [2023-08-24 18:22:04,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (36 of 68 remaining) [2023-08-24 18:22:04,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (35 of 68 remaining) [2023-08-24 18:22:04,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 68 remaining) [2023-08-24 18:22:04,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 68 remaining) [2023-08-24 18:22:04,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 68 remaining) [2023-08-24 18:22:04,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 68 remaining) [2023-08-24 18:22:04,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (30 of 68 remaining) [2023-08-24 18:22:04,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (29 of 68 remaining) [2023-08-24 18:22:04,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (28 of 68 remaining) [2023-08-24 18:22:04,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (27 of 68 remaining) [2023-08-24 18:22:04,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONASSERT (26 of 68 remaining) [2023-08-24 18:22:04,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (25 of 68 remaining) [2023-08-24 18:22:04,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (24 of 68 remaining) [2023-08-24 18:22:04,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (23 of 68 remaining) [2023-08-24 18:22:04,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (22 of 68 remaining) [2023-08-24 18:22:04,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (21 of 68 remaining) [2023-08-24 18:22:04,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (20 of 68 remaining) [2023-08-24 18:22:04,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (19 of 68 remaining) [2023-08-24 18:22:04,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (18 of 68 remaining) [2023-08-24 18:22:04,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (17 of 68 remaining) [2023-08-24 18:22:04,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (16 of 68 remaining) [2023-08-24 18:22:04,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (15 of 68 remaining) [2023-08-24 18:22:04,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 68 remaining) [2023-08-24 18:22:04,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 68 remaining) [2023-08-24 18:22:04,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 68 remaining) [2023-08-24 18:22:04,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONASSERT (11 of 68 remaining) [2023-08-24 18:22:04,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (10 of 68 remaining) [2023-08-24 18:22:04,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 68 remaining) [2023-08-24 18:22:04,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (8 of 68 remaining) [2023-08-24 18:22:04,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 68 remaining) [2023-08-24 18:22:04,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 68 remaining) [2023-08-24 18:22:04,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 68 remaining) [2023-08-24 18:22:04,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 68 remaining) [2023-08-24 18:22:04,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 68 remaining) [2023-08-24 18:22:04,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (2 of 68 remaining) [2023-08-24 18:22:04,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (1 of 68 remaining) [2023-08-24 18:22:04,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (0 of 68 remaining) [2023-08-24 18:22:04,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-24 18:22:04,287 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:22:04,291 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 18:22:04,291 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 18:22:04,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 06:22:04 BasicIcfg [2023-08-24 18:22:04,310 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 18:22:04,310 INFO L158 Benchmark]: Toolchain (without parser) took 9835.93ms. Allocated memory was 352.3MB in the beginning and 2.2GB in the end (delta: 1.8GB). Free memory was 327.2MB in the beginning and 1.9GB in the end (delta: -1.6GB). Peak memory consumption was 289.6MB. Max. memory is 16.0GB. [2023-08-24 18:22:04,310 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 352.3MB. Free memory is still 328.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 18:22:04,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.54ms. Allocated memory is still 352.3MB. Free memory was 326.6MB in the beginning and 306.7MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-24 18:22:04,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.68ms. Allocated memory is still 352.3MB. Free memory was 306.7MB in the beginning and 304.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-24 18:22:04,311 INFO L158 Benchmark]: Boogie Preprocessor took 40.93ms. Allocated memory is still 352.3MB. Free memory was 304.1MB in the beginning and 302.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 18:22:04,311 INFO L158 Benchmark]: RCFGBuilder took 453.14ms. Allocated memory is still 352.3MB. Free memory was 302.0MB in the beginning and 282.0MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-24 18:22:04,311 INFO L158 Benchmark]: TraceAbstraction took 8884.91ms. Allocated memory was 352.3MB in the beginning and 2.2GB in the end (delta: 1.8GB). Free memory was 281.6MB in the beginning and 1.9GB in the end (delta: -1.6GB). Peak memory consumption was 245.6MB. Max. memory is 16.0GB. [2023-08-24 18:22:04,312 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 352.3MB. Free memory is still 328.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 390.54ms. Allocated memory is still 352.3MB. Free memory was 326.6MB in the beginning and 306.7MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 60.68ms. Allocated memory is still 352.3MB. Free memory was 306.7MB in the beginning and 304.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 40.93ms. Allocated memory is still 352.3MB. Free memory was 304.1MB in the beginning and 302.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 453.14ms. Allocated memory is still 352.3MB. Free memory was 302.0MB in the beginning and 282.0MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 8884.91ms. Allocated memory was 352.3MB in the beginning and 2.2GB in the end (delta: 1.8GB). Free memory was 281.6MB in the beginning and 1.9GB in the end (delta: -1.6GB). Peak memory consumption was 245.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 249]: Unsoundness Warning unspecified type, defaulting to int C: short [249] - GenericResultAtLocation [Line: 249]: Unsoundness Warning unspecified type, defaulting to int C: short [249] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 225 PlacesBefore, 144 PlacesAfterwards, 244 TransitionsBefore, 163 TransitionsAfterwards, 26600 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 83 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 0 ChoiceCompositions, 113 TotalNumberOfCompositions, 138598 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 45990, independent: 44559, independent conditional: 0, independent unconditional: 44559, dependent: 1431, dependent conditional: 0, dependent unconditional: 1431, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 12255, independent: 12051, independent conditional: 0, independent unconditional: 12051, dependent: 204, dependent conditional: 0, dependent unconditional: 204, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 45990, independent: 32508, independent conditional: 0, independent unconditional: 32508, dependent: 1227, dependent conditional: 0, dependent unconditional: 1227, unknown: 12255, unknown conditional: 0, unknown unconditional: 12255] , Statistics on independence cache: Total cache size (in pairs): 3380, Positive cache size: 3229, Positive conditional cache size: 0, Positive unconditional cache size: 3229, Negative cache size: 151, Negative conditional cache size: 0, Negative unconditional cache size: 151, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 690]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int x, y; [L685] 0 int b1, b2; [L686] 0 int X; [L740] 0 pthread_t t1, t2; [L741] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [X=0, b1=0, b2=0, pthread_create(&t1, 0, thr1, 0)=-2, t1={3:0}, t2={5:0}, x=0, y=0] [L688] COND TRUE 1 1 [L689] 1 b1 = 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=0, x=0, y=0] [L742] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [X=0, b1=1, b2=0, pthread_create(&t2, 0, thr2, 0)=-1, t1={3:0}, t2={5:0}, x=0, y=0] [L690] 1 x = 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=0, x=1, y=0] [L714] COND TRUE 2 1 [L715] 2 b2 = 1 [L716] 2 x = 2 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=1, x=2, y=0] [L690] 1 x = 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=1, x = 1=51, x=2, y=0] Now there is a data race on ~x~0 between C: x = 2 [716] and C: x = 1 [690] - UnprovableResult [Line: 733]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 734]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 735]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 736]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 727]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 743]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 742]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 741]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 408 locations, 68 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: 8.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 225 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 225 mSDsluCounter, 107 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 994 IncrementalHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 107 mSDtfsCounter, 994 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=728occurred in iteration=8, InterpolantAutomatonStates: 23, 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, 0.2s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-24 18:22:04,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...