/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread/stateful01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 18:19:12,347 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 18:19:12,416 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-24 18:19:12,420 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 18:19:12,420 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 18:19:12,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 18:19:12,458 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 18:19:12,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 18:19:12,459 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 18:19:12,462 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 18:19:12,462 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 18:19:12,463 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 18:19:12,463 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 18:19:12,464 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 18:19:12,464 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 18:19:12,464 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 18:19:12,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 18:19:12,465 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 18:19:12,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 18:19:12,465 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 18:19:12,466 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 18:19:12,466 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 18:19:12,466 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 18:19:12,467 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 18:19:12,467 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 18:19:12,467 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 18:19:12,468 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 18:19:12,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:19:12,468 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 18:19:12,468 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 18:19:12,469 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 18:19:12,469 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 18:19:12,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 18:19:12,470 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 18:19:12,470 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 18:19:12,470 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-24 18:19:12,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 18:19:12,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 18:19:12,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 18:19:12,821 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 18:19:12,822 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 18:19:12,823 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2023-08-24 18:19:13,959 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 18:19:14,233 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 18:19:14,234 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2023-08-24 18:19:14,250 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f43a37caa/10b4c79f21c44dc580dd09826b1abbfe/FLAGf977e0268 [2023-08-24 18:19:14,267 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f43a37caa/10b4c79f21c44dc580dd09826b1abbfe [2023-08-24 18:19:14,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 18:19:14,273 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 18:19:14,275 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 18:19:14,276 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 18:19:14,278 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 18:19:14,279 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:19:14" (1/1) ... [2023-08-24 18:19:14,280 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c96fdf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:14, skipping insertion in model container [2023-08-24 18:19:14,280 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:19:14" (1/1) ... [2023-08-24 18:19:14,325 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 18:19:14,641 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:19:14,654 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 18:19:14,683 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [257] [2023-08-24 18:19:14,685 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [257] [2023-08-24 18:19:14,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:19:14,749 INFO L206 MainTranslator]: Completed translation [2023-08-24 18:19:14,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:14 WrapperNode [2023-08-24 18:19:14,750 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 18:19:14,751 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 18:19:14,751 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 18:19:14,751 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 18:19:14,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:14" (1/1) ... [2023-08-24 18:19:14,780 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:14" (1/1) ... [2023-08-24 18:19:14,803 INFO L138 Inliner]: procedures = 168, calls = 35, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2023-08-24 18:19:14,803 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 18:19:14,804 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 18:19:14,804 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 18:19:14,804 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 18:19:14,814 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:14" (1/1) ... [2023-08-24 18:19:14,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:14" (1/1) ... [2023-08-24 18:19:14,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:14" (1/1) ... [2023-08-24 18:19:14,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:14" (1/1) ... [2023-08-24 18:19:14,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:14" (1/1) ... [2023-08-24 18:19:14,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:14" (1/1) ... [2023-08-24 18:19:14,827 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:14" (1/1) ... [2023-08-24 18:19:14,828 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:14" (1/1) ... [2023-08-24 18:19:14,830 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 18:19:14,831 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 18:19:14,831 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 18:19:14,831 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 18:19:14,832 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:14" (1/1) ... [2023-08-24 18:19:14,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:19:14,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 18:19:14,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-24 18:19:14,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-24 18:19:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 18:19:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-24 18:19:14,893 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-24 18:19:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-24 18:19:14,894 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-24 18:19:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 18:19:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-24 18:19:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 18:19:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 18:19:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 18:19:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 18:19:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 18:19:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 18:19:14,896 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 18:19:15,021 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 18:19:15,023 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 18:19:15,343 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 18:19:15,354 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 18:19:15,354 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-24 18:19:15,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:19:15 BoogieIcfgContainer [2023-08-24 18:19:15,357 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 18:19:15,359 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 18:19:15,359 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 18:19:15,362 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 18:19:15,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 06:19:14" (1/3) ... [2023-08-24 18:19:15,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73919aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:19:15, skipping insertion in model container [2023-08-24 18:19:15,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:19:14" (2/3) ... [2023-08-24 18:19:15,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73919aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:19:15, skipping insertion in model container [2023-08-24 18:19:15,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:19:15" (3/3) ... [2023-08-24 18:19:15,364 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2023-08-24 18:19:15,379 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 18:19:15,380 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2023-08-24 18:19:15,380 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 18:19:15,458 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-24 18:19:15,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 159 transitions, 334 flow [2023-08-24 18:19:15,602 INFO L124 PetriNetUnfolderBase]: 3/157 cut-off events. [2023-08-24 18:19:15,602 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 18:19:15,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 157 events. 3/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 158 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2023-08-24 18:19:15,608 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 159 transitions, 334 flow [2023-08-24 18:19:15,615 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 144 transitions, 300 flow [2023-08-24 18:19:15,618 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:19:15,630 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 144 transitions, 300 flow [2023-08-24 18:19:15,634 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 144 transitions, 300 flow [2023-08-24 18:19:15,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 144 transitions, 300 flow [2023-08-24 18:19:15,680 INFO L124 PetriNetUnfolderBase]: 1/144 cut-off events. [2023-08-24 18:19:15,680 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 18:19:15,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 144 events. 1/144 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 134 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2023-08-24 18:19:15,684 INFO L119 LiptonReduction]: Number of co-enabled transitions 3576 [2023-08-24 18:19:19,132 INFO L134 LiptonReduction]: Checked pairs total: 17081 [2023-08-24 18:19:19,132 INFO L136 LiptonReduction]: Total number of compositions: 115 [2023-08-24 18:19:19,144 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 18:19:19,149 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;@5fbe4293, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 18:19:19,150 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-08-24 18:19:19,150 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 18:19:19,151 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-24 18:19:19,151 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:19:19,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:19,151 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-24 18:19:19,152 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:19,156 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:19,156 INFO L85 PathProgramCache]: Analyzing trace with hash 536, now seen corresponding path program 1 times [2023-08-24 18:19:19,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:19,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311660308] [2023-08-24 18:19:19,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:19,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:19:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:19:19,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:19:19,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311660308] [2023-08-24 18:19:19,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311660308] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:19:19,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:19:19,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-24 18:19:19,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850210391] [2023-08-24 18:19:19,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:19:19,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 18:19:19,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:19:19,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 18:19:19,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 18:19:19,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 274 [2023-08-24 18:19:19,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 53 transitions, 118 flow. Second operand has 2 states, 2 states have (on average 152.5) internal successors, (305), 2 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:19,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:19:19,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 274 [2023-08-24 18:19:19,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:19:19,412 INFO L124 PetriNetUnfolderBase]: 189/495 cut-off events. [2023-08-24 18:19:19,412 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 18:19:19,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 878 conditions, 495 events. 189/495 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2539 event pairs, 189 based on Foata normal form. 0/443 useless extension candidates. Maximal degree in co-relation 795. Up to 353 conditions per place. [2023-08-24 18:19:19,422 INFO L140 encePairwiseOnDemand]: 268/274 looper letters, 23 selfloop transitions, 0 changer transitions 0/47 dead transitions. [2023-08-24 18:19:19,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 152 flow [2023-08-24 18:19:19,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 18:19:19,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 18:19:19,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 333 transitions. [2023-08-24 18:19:19,441 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6076642335766423 [2023-08-24 18:19:19,441 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 333 transitions. [2023-08-24 18:19:19,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 333 transitions. [2023-08-24 18:19:19,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:19:19,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 333 transitions. [2023-08-24 18:19:19,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 166.5) internal successors, (333), 2 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:19,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:19,456 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:19,458 INFO L175 Difference]: Start difference. First operand has 60 places, 53 transitions, 118 flow. Second operand 2 states and 333 transitions. [2023-08-24 18:19:19,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 152 flow [2023-08-24 18:19:19,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 47 transitions, 144 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-24 18:19:19,464 INFO L231 Difference]: Finished difference. Result has 51 places, 47 transitions, 98 flow [2023-08-24 18:19:19,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=98, PETRI_PLACES=51, PETRI_TRANSITIONS=47} [2023-08-24 18:19:19,471 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -9 predicate places. [2023-08-24 18:19:19,471 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 98 flow [2023-08-24 18:19:19,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 152.5) internal successors, (305), 2 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:19,472 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:19,472 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-24 18:19:19,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 18:19:19,472 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:19,480 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:19,480 INFO L85 PathProgramCache]: Analyzing trace with hash 508849554, now seen corresponding path program 1 times [2023-08-24 18:19:19,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:19,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376104170] [2023-08-24 18:19:19,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:19,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:19:19,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:19:19,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:19:19,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376104170] [2023-08-24 18:19:19,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376104170] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:19:19,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:19:19,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:19:19,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770780511] [2023-08-24 18:19:19,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:19:19,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:19:19,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:19:19,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:19:19,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:19:19,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 274 [2023-08-24 18:19:19,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:19,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:19:19,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 274 [2023-08-24 18:19:19,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:19:19,770 INFO L124 PetriNetUnfolderBase]: 576/1267 cut-off events. [2023-08-24 18:19:19,771 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-24 18:19:19,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2307 conditions, 1267 events. 576/1267 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 7319 event pairs, 353 based on Foata normal form. 0/1099 useless extension candidates. Maximal degree in co-relation 2304. Up to 728 conditions per place. [2023-08-24 18:19:19,777 INFO L140 encePairwiseOnDemand]: 265/274 looper letters, 53 selfloop transitions, 7 changer transitions 0/74 dead transitions. [2023-08-24 18:19:19,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 74 transitions, 274 flow [2023-08-24 18:19:19,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:19:19,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:19:19,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 464 transitions. [2023-08-24 18:19:19,780 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5644768856447688 [2023-08-24 18:19:19,780 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 464 transitions. [2023-08-24 18:19:19,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 464 transitions. [2023-08-24 18:19:19,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:19:19,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 464 transitions. [2023-08-24 18:19:19,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:19,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:19,784 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:19,784 INFO L175 Difference]: Start difference. First operand has 51 places, 47 transitions, 98 flow. Second operand 3 states and 464 transitions. [2023-08-24 18:19:19,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 74 transitions, 274 flow [2023-08-24 18:19:19,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 74 transitions, 274 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:19:19,786 INFO L231 Difference]: Finished difference. Result has 55 places, 53 transitions, 154 flow [2023-08-24 18:19:19,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=55, PETRI_TRANSITIONS=53} [2023-08-24 18:19:19,787 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -5 predicate places. [2023-08-24 18:19:19,787 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 154 flow [2023-08-24 18:19:19,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:19,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:19,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:19:19,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 18:19:19,788 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:19,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:19,789 INFO L85 PathProgramCache]: Analyzing trace with hash -586492104, now seen corresponding path program 1 times [2023-08-24 18:19:19,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:19,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363763223] [2023-08-24 18:19:19,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:19,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:19:19,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:19:19,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:19:19,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363763223] [2023-08-24 18:19:19,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363763223] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:19:19,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:19:19,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:19:19,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753174836] [2023-08-24 18:19:19,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:19:19,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:19:19,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:19:19,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:19:19,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:19:19,842 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 274 [2023-08-24 18:19:19,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:19,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:19:19,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 274 [2023-08-24 18:19:19,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:19:19,987 INFO L124 PetriNetUnfolderBase]: 584/1263 cut-off events. [2023-08-24 18:19:19,987 INFO L125 PetriNetUnfolderBase]: For 377/381 co-relation queries the response was YES. [2023-08-24 18:19:19,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2690 conditions, 1263 events. 584/1263 cut-off events. For 377/381 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 7096 event pairs, 442 based on Foata normal form. 0/1149 useless extension candidates. Maximal degree in co-relation 2685. Up to 954 conditions per place. [2023-08-24 18:19:19,995 INFO L140 encePairwiseOnDemand]: 269/274 looper letters, 51 selfloop transitions, 6 changer transitions 0/71 dead transitions. [2023-08-24 18:19:19,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 71 transitions, 321 flow [2023-08-24 18:19:19,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:19:19,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:19:19,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 447 transitions. [2023-08-24 18:19:19,997 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5437956204379562 [2023-08-24 18:19:19,997 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 447 transitions. [2023-08-24 18:19:19,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 447 transitions. [2023-08-24 18:19:19,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:19:19,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 447 transitions. [2023-08-24 18:19:19,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,001 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,001 INFO L175 Difference]: Start difference. First operand has 55 places, 53 transitions, 154 flow. Second operand 3 states and 447 transitions. [2023-08-24 18:19:20,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 71 transitions, 321 flow [2023-08-24 18:19:20,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 71 transitions, 301 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:19:20,005 INFO L231 Difference]: Finished difference. Result has 56 places, 57 transitions, 182 flow [2023-08-24 18:19:20,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=56, PETRI_TRANSITIONS=57} [2023-08-24 18:19:20,006 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2023-08-24 18:19:20,006 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 57 transitions, 182 flow [2023-08-24 18:19:20,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:20,007 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:19:20,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 18:19:20,007 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:20,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:20,008 INFO L85 PathProgramCache]: Analyzing trace with hash 85118785, now seen corresponding path program 1 times [2023-08-24 18:19:20,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:20,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654976651] [2023-08-24 18:19:20,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:20,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:19:20,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:19:20,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:19:20,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654976651] [2023-08-24 18:19:20,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654976651] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:19:20,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:19:20,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:19:20,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851466465] [2023-08-24 18:19:20,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:19:20,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:19:20,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:19:20,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:19:20,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:19:20,096 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 274 [2023-08-24 18:19:20,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 57 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:19:20,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 274 [2023-08-24 18:19:20,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:19:20,299 INFO L124 PetriNetUnfolderBase]: 605/1330 cut-off events. [2023-08-24 18:19:20,299 INFO L125 PetriNetUnfolderBase]: For 460/464 co-relation queries the response was YES. [2023-08-24 18:19:20,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2892 conditions, 1330 events. 605/1330 cut-off events. For 460/464 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7705 event pairs, 409 based on Foata normal form. 0/1190 useless extension candidates. Maximal degree in co-relation 2886. Up to 921 conditions per place. [2023-08-24 18:19:20,307 INFO L140 encePairwiseOnDemand]: 268/274 looper letters, 53 selfloop transitions, 9 changer transitions 0/76 dead transitions. [2023-08-24 18:19:20,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 76 transitions, 370 flow [2023-08-24 18:19:20,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:19:20,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:19:20,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2023-08-24 18:19:20,309 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5425790754257908 [2023-08-24 18:19:20,309 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2023-08-24 18:19:20,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2023-08-24 18:19:20,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:19:20,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2023-08-24 18:19:20,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,313 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,313 INFO L175 Difference]: Start difference. First operand has 56 places, 57 transitions, 182 flow. Second operand 3 states and 446 transitions. [2023-08-24 18:19:20,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 76 transitions, 370 flow [2023-08-24 18:19:20,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 76 transitions, 361 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 18:19:20,318 INFO L231 Difference]: Finished difference. Result has 59 places, 62 transitions, 244 flow [2023-08-24 18:19:20,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=59, PETRI_TRANSITIONS=62} [2023-08-24 18:19:20,320 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -1 predicate places. [2023-08-24 18:19:20,320 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 62 transitions, 244 flow [2023-08-24 18:19:20,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:20,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:19:20,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 18:19:20,321 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:20,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:20,322 INFO L85 PathProgramCache]: Analyzing trace with hash 641065944, now seen corresponding path program 1 times [2023-08-24 18:19:20,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:20,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241429857] [2023-08-24 18:19:20,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:20,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:19:20,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:19:20,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:19:20,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241429857] [2023-08-24 18:19:20,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241429857] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:19:20,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:19:20,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 18:19:20,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427937466] [2023-08-24 18:19:20,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:19:20,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:19:20,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:19:20,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:19:20,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:19:20,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 274 [2023-08-24 18:19:20,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 62 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:19:20,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 274 [2023-08-24 18:19:20,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:19:20,558 INFO L124 PetriNetUnfolderBase]: 89/362 cut-off events. [2023-08-24 18:19:20,558 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2023-08-24 18:19:20,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 362 events. 89/362 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1567 event pairs, 24 based on Foata normal form. 52/398 useless extension candidates. Maximal degree in co-relation 736. Up to 169 conditions per place. [2023-08-24 18:19:20,560 INFO L140 encePairwiseOnDemand]: 266/274 looper letters, 23 selfloop transitions, 8 changer transitions 0/48 dead transitions. [2023-08-24 18:19:20,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 48 transitions, 200 flow [2023-08-24 18:19:20,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:19:20,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:19:20,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 443 transitions. [2023-08-24 18:19:20,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5389294403892944 [2023-08-24 18:19:20,564 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 443 transitions. [2023-08-24 18:19:20,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 443 transitions. [2023-08-24 18:19:20,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:19:20,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 443 transitions. [2023-08-24 18:19:20,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,567 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,567 INFO L175 Difference]: Start difference. First operand has 59 places, 62 transitions, 244 flow. Second operand 3 states and 443 transitions. [2023-08-24 18:19:20,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 48 transitions, 200 flow [2023-08-24 18:19:20,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 48 transitions, 164 flow, removed 7 selfloop flow, removed 8 redundant places. [2023-08-24 18:19:20,570 INFO L231 Difference]: Finished difference. Result has 49 places, 43 transitions, 106 flow [2023-08-24 18:19:20,570 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=49, PETRI_TRANSITIONS=43} [2023-08-24 18:19:20,570 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -11 predicate places. [2023-08-24 18:19:20,571 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 43 transitions, 106 flow [2023-08-24 18:19:20,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,571 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:20,571 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:19:20,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-24 18:19:20,572 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:20,572 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:20,572 INFO L85 PathProgramCache]: Analyzing trace with hash 659776238, now seen corresponding path program 1 times [2023-08-24 18:19:20,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:20,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101605710] [2023-08-24 18:19:20,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:20,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:19:20,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:19:20,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:19:20,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101605710] [2023-08-24 18:19:20,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101605710] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:19:20,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:19:20,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:19:20,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266533543] [2023-08-24 18:19:20,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:19:20,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:19:20,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:19:20,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:19:20,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:19:20,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 274 [2023-08-24 18:19:20,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 43 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:19:20,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 274 [2023-08-24 18:19:20,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:19:20,669 INFO L124 PetriNetUnfolderBase]: 101/340 cut-off events. [2023-08-24 18:19:20,669 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-08-24 18:19:20,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 672 conditions, 340 events. 101/340 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1317 event pairs, 76 based on Foata normal form. 0/320 useless extension candidates. Maximal degree in co-relation 668. Up to 189 conditions per place. [2023-08-24 18:19:20,671 INFO L140 encePairwiseOnDemand]: 267/274 looper letters, 28 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2023-08-24 18:19:20,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 46 transitions, 180 flow [2023-08-24 18:19:20,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:19:20,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:19:20,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2023-08-24 18:19:20,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5316301703163017 [2023-08-24 18:19:20,673 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2023-08-24 18:19:20,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2023-08-24 18:19:20,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:19:20,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2023-08-24 18:19:20,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,676 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,677 INFO L175 Difference]: Start difference. First operand has 49 places, 43 transitions, 106 flow. Second operand 3 states and 437 transitions. [2023-08-24 18:19:20,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 46 transitions, 180 flow [2023-08-24 18:19:20,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 46 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 18:19:20,678 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 104 flow [2023-08-24 18:19:20,678 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2023-08-24 18:19:20,679 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -12 predicate places. [2023-08-24 18:19:20,679 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 104 flow [2023-08-24 18:19:20,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,680 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:20,680 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:19:20,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-24 18:19:20,680 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:20,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:20,680 INFO L85 PathProgramCache]: Analyzing trace with hash -874329719, now seen corresponding path program 1 times [2023-08-24 18:19:20,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:20,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640201865] [2023-08-24 18:19:20,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:20,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:19:20,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:19:20,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:19:20,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640201865] [2023-08-24 18:19:20,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640201865] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:19:20,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:19:20,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:19:20,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631970596] [2023-08-24 18:19:20,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:19:20,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:19:20,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:19:20,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:19:20,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:19:20,709 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 274 [2023-08-24 18:19:20,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:19:20,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 274 [2023-08-24 18:19:20,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:19:20,787 INFO L124 PetriNetUnfolderBase]: 96/325 cut-off events. [2023-08-24 18:19:20,787 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2023-08-24 18:19:20,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 648 conditions, 325 events. 96/325 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1241 event pairs, 91 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 643. Up to 229 conditions per place. [2023-08-24 18:19:20,789 INFO L140 encePairwiseOnDemand]: 271/274 looper letters, 28 selfloop transitions, 2 changer transitions 0/43 dead transitions. [2023-08-24 18:19:20,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 43 transitions, 169 flow [2023-08-24 18:19:20,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:19:20,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:19:20,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2023-08-24 18:19:20,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5194647201946472 [2023-08-24 18:19:20,790 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 427 transitions. [2023-08-24 18:19:20,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 427 transitions. [2023-08-24 18:19:20,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:19:20,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 427 transitions. [2023-08-24 18:19:20,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,793 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,793 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 104 flow. Second operand 3 states and 427 transitions. [2023-08-24 18:19:20,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 43 transitions, 169 flow [2023-08-24 18:19:20,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 43 transitions, 159 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:19:20,795 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 96 flow [2023-08-24 18:19:20,795 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=47, PETRI_TRANSITIONS=40} [2023-08-24 18:19:20,796 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -13 predicate places. [2023-08-24 18:19:20,796 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 96 flow [2023-08-24 18:19:20,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:20,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:19:20,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-24 18:19:20,797 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:20,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:20,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1197532919, now seen corresponding path program 1 times [2023-08-24 18:19:20,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:20,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126588089] [2023-08-24 18:19:20,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:20,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:20,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:19:20,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:19:20,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:19:20,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126588089] [2023-08-24 18:19:20,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126588089] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:19:20,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:19:20,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:19:20,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922682538] [2023-08-24 18:19:20,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:19:20,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:19:20,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:19:20,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:19:20,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:19:20,824 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 274 [2023-08-24 18:19:20,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:19:20,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 274 [2023-08-24 18:19:20,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:19:20,882 INFO L124 PetriNetUnfolderBase]: 91/312 cut-off events. [2023-08-24 18:19:20,883 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-08-24 18:19:20,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 312 events. 91/312 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1181 event pairs, 81 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 599. Up to 203 conditions per place. [2023-08-24 18:19:20,884 INFO L140 encePairwiseOnDemand]: 271/274 looper letters, 27 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2023-08-24 18:19:20,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 42 transitions, 159 flow [2023-08-24 18:19:20,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:19:20,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:19:20,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 426 transitions. [2023-08-24 18:19:20,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5182481751824818 [2023-08-24 18:19:20,886 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 426 transitions. [2023-08-24 18:19:20,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 426 transitions. [2023-08-24 18:19:20,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:19:20,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 426 transitions. [2023-08-24 18:19:20,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,889 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,889 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 96 flow. Second operand 3 states and 426 transitions. [2023-08-24 18:19:20,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 42 transitions, 159 flow [2023-08-24 18:19:20,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 42 transitions, 155 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:19:20,890 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 94 flow [2023-08-24 18:19:20,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2023-08-24 18:19:20,891 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -14 predicate places. [2023-08-24 18:19:20,891 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 94 flow [2023-08-24 18:19:20,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:19:20,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:19:20,892 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:19:20,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-24 18:19:20,892 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-08-24 18:19:20,892 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:19:20,893 INFO L85 PathProgramCache]: Analyzing trace with hash -695715557, now seen corresponding path program 1 times [2023-08-24 18:19:20,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:19:20,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276939611] [2023-08-24 18:19:20,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:19:20,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:19:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:19:20,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 18:19:20,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:19:20,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 18:19:20,971 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 18:19:20,972 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONASSERT (24 of 25 remaining) [2023-08-24 18:19:20,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2023-08-24 18:19:20,973 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2023-08-24 18:19:20,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2023-08-24 18:19:20,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2023-08-24 18:19:20,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2023-08-24 18:19:20,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2023-08-24 18:19:20,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2023-08-24 18:19:20,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2023-08-24 18:19:20,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2023-08-24 18:19:20,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2023-08-24 18:19:20,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2023-08-24 18:19:20,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2023-08-24 18:19:20,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2023-08-24 18:19:20,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2023-08-24 18:19:20,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 25 remaining) [2023-08-24 18:19:20,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 25 remaining) [2023-08-24 18:19:20,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2023-08-24 18:19:20,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2023-08-24 18:19:20,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2023-08-24 18:19:20,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2023-08-24 18:19:20,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2023-08-24 18:19:20,976 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2023-08-24 18:19:20,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2023-08-24 18:19:20,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2023-08-24 18:19:20,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-24 18:19:20,977 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:19:20,982 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 18:19:20,982 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 18:19:21,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 06:19:21 BasicIcfg [2023-08-24 18:19:21,038 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 18:19:21,039 INFO L158 Benchmark]: Toolchain (without parser) took 6765.76ms. Allocated memory was 354.4MB in the beginning and 505.4MB in the end (delta: 151.0MB). Free memory was 330.1MB in the beginning and 302.1MB in the end (delta: 28.0MB). Peak memory consumption was 181.0MB. Max. memory is 16.0GB. [2023-08-24 18:19:21,039 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 354.4MB. Free memory is still 331.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 18:19:21,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.71ms. Allocated memory is still 354.4MB. Free memory was 330.0MB in the beginning and 309.9MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-24 18:19:21,040 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.35ms. Allocated memory is still 354.4MB. Free memory was 309.9MB in the beginning and 307.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 18:19:21,040 INFO L158 Benchmark]: Boogie Preprocessor took 26.24ms. Allocated memory is still 354.4MB. Free memory was 307.8MB in the beginning and 306.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 18:19:21,040 INFO L158 Benchmark]: RCFGBuilder took 526.17ms. Allocated memory is still 354.4MB. Free memory was 306.1MB in the beginning and 288.5MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-24 18:19:21,041 INFO L158 Benchmark]: TraceAbstraction took 5679.44ms. Allocated memory was 354.4MB in the beginning and 505.4MB in the end (delta: 151.0MB). Free memory was 287.7MB in the beginning and 302.1MB in the end (delta: -14.4MB). Peak memory consumption was 137.0MB. Max. memory is 16.0GB. [2023-08-24 18:19:21,042 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 354.4MB. Free memory is still 331.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 474.71ms. Allocated memory is still 354.4MB. Free memory was 330.0MB in the beginning and 309.9MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 52.35ms. Allocated memory is still 354.4MB. Free memory was 309.9MB in the beginning and 307.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.24ms. Allocated memory is still 354.4MB. Free memory was 307.8MB in the beginning and 306.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 526.17ms. Allocated memory is still 354.4MB. Free memory was 306.1MB in the beginning and 288.5MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 5679.44ms. Allocated memory was 354.4MB in the beginning and 505.4MB in the end (delta: 151.0MB). Free memory was 287.7MB in the beginning and 302.1MB in the end (delta: -14.4MB). Peak memory consumption was 137.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 257]: Unsoundness Warning unspecified type, defaulting to int C: short [257] - GenericResultAtLocation [Line: 257]: Unsoundness Warning unspecified type, defaulting to int C: short [257] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5s, 150 PlacesBefore, 60 PlacesAfterwards, 144 TransitionsBefore, 53 TransitionsAfterwards, 3576 CoEnabledTransitionPairs, 7 FixpointIterations, 66 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 115 TotalNumberOfCompositions, 17081 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6907, independent: 6355, independent conditional: 0, independent unconditional: 6355, dependent: 552, dependent conditional: 0, dependent unconditional: 552, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1856, independent: 1793, independent conditional: 0, independent unconditional: 1793, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6907, independent: 4562, independent conditional: 0, independent unconditional: 4562, dependent: 489, dependent conditional: 0, dependent unconditional: 489, unknown: 1856, unknown conditional: 0, unknown unconditional: 1856] , Statistics on independence cache: Total cache size (in pairs): 400, Positive cache size: 362, Positive conditional cache size: 0, Positive unconditional cache size: 362, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 20]: assertion can be violated assertion can be violated We found a FailurePath: [L692] 0 pthread_mutex_t ma, mb; [L693] 0 int data1, data2; [L716] 0 pthread_t t1, t2; [L719] 0 data1 = 10 [L720] 0 data2 = 10 [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, pthread_create(&t1, 0, thread1, 0)=-1, t1={6:0}, t2={5:0}] [L697] 1 data1++ VAL [arg={0:0}, arg={0:0}, data1++=10, data1++=52, data1=11, data2=10, ma={3:0}, mb={4:0}] [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1++=10, data1++=52, data1=11, data2=10, ma={3:0}, mb={4:0}, pthread_create(&t2, 0, thread2, 0)=0, t1={6:0}, t2={5:0}] [L723] EXPR 0 \read(t1) [L723] 0 pthread_join(t1, 0) VAL [\read(t1)=-1, arg={0:0}, arg={0:0}, arg={0:0}, data1++=10, data1++=52, data1=11, data2=10, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L697] 1 data1++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=10, ma={3:0}, mb={4:0}] [L707] 2 data1+=5 [L700] 1 data2++ [L702] 1 return 0; [L710] 2 data2-=6 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] [L712] 2 return 0; [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\read(t1)=-1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L724] EXPR 0 \read(t2) [L724] 0 pthread_join(t2, 0) VAL [\read(t2)=0, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L724] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\read(t2)=0, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L725] EXPR 0 data1==16 [L725] 0 data1==16 && data2==5 [L725] EXPR 0 data2==5 [L725] 0 data1==16 && data2==5 [L725] COND TRUE 0 data1==16 && data2==5 [L727] CALL 0 reach_error() [L20] COND FALSE 0 !(0) [L20] 0 __assert_fail ("0", "stateful01-1.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] - 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: 697]: 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: 700]: 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: 707]: 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: 710]: 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: 720]: 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: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: 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: 722]: 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, 219 locations, 25 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 78 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 433 IncrementalHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 42 mSDtfsCounter, 433 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=244occurred in iteration=4, 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, 0.3s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 76 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 18:19:21,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...