./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a0803bc25bdee4cec741e6286f7294c3704d91bb65e5684830693d517eafafb --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:10:49,167 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:10:49,221 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:10:49,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:10:49,229 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:10:49,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:10:49,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:10:49,247 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:10:49,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:10:49,248 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:10:49,248 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:10:49,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:10:49,249 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:10:49,249 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:10:49,250 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:10:49,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:10:49,250 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:10:49,251 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:10:49,251 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:10:49,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:10:49,251 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:10:49,251 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:10:49,251 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:10:49,251 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:10:49,251 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a0803bc25bdee4cec741e6286f7294c3704d91bb65e5684830693d517eafafb [2025-02-08 05:10:49,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:10:49,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:10:49,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:10:49,463 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:10:49,463 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:10:49,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i [2025-02-08 05:10:50,630 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cd4692930/3adc2e84f75d4c05a46bdf878b4a0315/FLAG387681688 [2025-02-08 05:10:50,962 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:10:50,962 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i [2025-02-08 05:10:50,977 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cd4692930/3adc2e84f75d4c05a46bdf878b4a0315/FLAG387681688 [2025-02-08 05:10:50,992 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cd4692930/3adc2e84f75d4c05a46bdf878b4a0315 [2025-02-08 05:10:50,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:10:50,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:10:50,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:10:50,998 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:10:51,001 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:10:51,002 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:10:50" (1/1) ... [2025-02-08 05:10:51,002 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ccf8b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:51, skipping insertion in model container [2025-02-08 05:10:51,003 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:10:50" (1/1) ... [2025-02-08 05:10:51,036 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:10:51,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:10:51,256 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:10:51,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:10:51,314 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:10:51,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:51 WrapperNode [2025-02-08 05:10:51,315 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:10:51,316 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:10:51,316 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:10:51,316 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:10:51,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:51" (1/1) ... [2025-02-08 05:10:51,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:51" (1/1) ... [2025-02-08 05:10:51,343 INFO L138 Inliner]: procedures = 170, calls = 30, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 138 [2025-02-08 05:10:51,343 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:10:51,344 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:10:51,344 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:10:51,344 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:10:51,349 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:51" (1/1) ... [2025-02-08 05:10:51,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:51" (1/1) ... [2025-02-08 05:10:51,355 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:51" (1/1) ... [2025-02-08 05:10:51,355 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:51" (1/1) ... [2025-02-08 05:10:51,363 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:51" (1/1) ... [2025-02-08 05:10:51,364 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:51" (1/1) ... [2025-02-08 05:10:51,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:51" (1/1) ... [2025-02-08 05:10:51,366 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:51" (1/1) ... [2025-02-08 05:10:51,367 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:10:51,368 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:10:51,368 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:10:51,368 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:10:51,369 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:51" (1/1) ... [2025-02-08 05:10:51,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:10:51,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:10:51,391 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 05:10:51,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 05:10:51,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-08 05:10:51,408 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-08 05:10:51,408 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-08 05:10:51,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-08 05:10:51,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:10:51,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 05:10:51,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 05:10:51,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:10:51,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:10:51,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:10:51,410 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 05:10:51,487 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:10:51,488 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:10:51,684 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:10:51,684 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:10:51,810 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:10:51,810 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:10:51,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:10:51 BoogieIcfgContainer [2025-02-08 05:10:51,811 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:10:51,812 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:10:51,812 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:10:51,817 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:10:51,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:10:50" (1/3) ... [2025-02-08 05:10:51,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2ded64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:10:51, skipping insertion in model container [2025-02-08 05:10:51,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:10:51" (2/3) ... [2025-02-08 05:10:51,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2ded64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:10:51, skipping insertion in model container [2025-02-08 05:10:51,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:10:51" (3/3) ... [2025-02-08 05:10:51,819 INFO L128 eAbstractionObserver]: Analyzing ICFG 12_fmaxsymopt_cas.i [2025-02-08 05:10:51,828 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:10:51,830 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 12_fmaxsymopt_cas.i that has 2 procedures, 116 locations, 1 initial locations, 3 loop locations, and 8 error locations. [2025-02-08 05:10:51,832 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:10:51,908 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:10:51,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 124 transitions, 252 flow [2025-02-08 05:10:51,998 INFO L124 PetriNetUnfolderBase]: 8/131 cut-off events. [2025-02-08 05:10:52,001 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:10:52,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 131 events. 8/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 221 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 102. Up to 3 conditions per place. [2025-02-08 05:10:52,006 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 124 transitions, 252 flow [2025-02-08 05:10:52,009 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 124 transitions, 252 flow [2025-02-08 05:10:52,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:10:52,027 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@66b8936, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:10:52,027 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2025-02-08 05:10:52,035 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:10:52,036 INFO L124 PetriNetUnfolderBase]: 0/41 cut-off events. [2025-02-08 05:10:52,036 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:10:52,036 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:52,037 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:10:52,037 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2025-02-08 05:10:52,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:52,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1874714124, now seen corresponding path program 1 times [2025-02-08 05:10:52,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:52,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928144065] [2025-02-08 05:10:52,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:52,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:52,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 05:10:52,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 05:10:52,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:52,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:10:52,131 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:10:52,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 05:10:52,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 05:10:52,152 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:52,152 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:10:52,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:10:52,177 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:10:52,178 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2025-02-08 05:10:52,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2025-02-08 05:10:52,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2025-02-08 05:10:52,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2025-02-08 05:10:52,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2025-02-08 05:10:52,180 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2025-02-08 05:10:52,181 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2025-02-08 05:10:52,181 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2025-02-08 05:10:52,181 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2025-02-08 05:10:52,181 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2025-02-08 05:10:52,181 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2025-02-08 05:10:52,181 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2025-02-08 05:10:52,181 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2025-02-08 05:10:52,181 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2025-02-08 05:10:52,181 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2025-02-08 05:10:52,181 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2025-02-08 05:10:52,182 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2025-02-08 05:10:52,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:10:52,182 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 05:10:52,186 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:10:52,186 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-08 05:10:52,319 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:10:52,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 207 places, 218 transitions, 446 flow [2025-02-08 05:10:52,399 INFO L124 PetriNetUnfolderBase]: 16/234 cut-off events. [2025-02-08 05:10:52,399 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 05:10:52,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 234 events. 16/234 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 698 event pairs, 0 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 195. Up to 3 conditions per place. [2025-02-08 05:10:52,404 INFO L82 GeneralOperation]: Start removeDead. Operand has 207 places, 218 transitions, 446 flow [2025-02-08 05:10:52,407 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 218 transitions, 446 flow [2025-02-08 05:10:52,408 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:10:52,409 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@66b8936, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:10:52,409 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2025-02-08 05:10:52,421 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:10:52,424 INFO L124 PetriNetUnfolderBase]: 1/64 cut-off events. [2025-02-08 05:10:52,424 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 05:10:52,424 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:52,424 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:10:52,425 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2025-02-08 05:10:52,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:52,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1827190791, now seen corresponding path program 1 times [2025-02-08 05:10:52,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:52,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420725090] [2025-02-08 05:10:52,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:52,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:52,444 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-08 05:10:52,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-08 05:10:52,457 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:52,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:10:52,457 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:10:52,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-08 05:10:52,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-08 05:10:52,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:52,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:10:52,485 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:10:52,485 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:10:52,485 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2025-02-08 05:10:52,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2025-02-08 05:10:52,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2025-02-08 05:10:52,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2025-02-08 05:10:52,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2025-02-08 05:10:52,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2025-02-08 05:10:52,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2025-02-08 05:10:52,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2025-02-08 05:10:52,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2025-02-08 05:10:52,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2025-02-08 05:10:52,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2025-02-08 05:10:52,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2025-02-08 05:10:52,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2025-02-08 05:10:52,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2025-02-08 05:10:52,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2025-02-08 05:10:52,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2025-02-08 05:10:52,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2025-02-08 05:10:52,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2025-02-08 05:10:52,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2025-02-08 05:10:52,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2025-02-08 05:10:52,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2025-02-08 05:10:52,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2025-02-08 05:10:52,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2025-02-08 05:10:52,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2025-02-08 05:10:52,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2025-02-08 05:10:52,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 05:10:52,486 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 05:10:52,490 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:10:52,490 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-08 05:10:52,573 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:10:52,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 312 transitions, 642 flow [2025-02-08 05:10:52,633 INFO L124 PetriNetUnfolderBase]: 24/337 cut-off events. [2025-02-08 05:10:52,634 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-08 05:10:52,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 337 events. 24/337 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1270 event pairs, 0 based on Foata normal form. 0/282 useless extension candidates. Maximal degree in co-relation 288. Up to 4 conditions per place. [2025-02-08 05:10:52,638 INFO L82 GeneralOperation]: Start removeDead. Operand has 295 places, 312 transitions, 642 flow [2025-02-08 05:10:52,641 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 295 places, 312 transitions, 642 flow [2025-02-08 05:10:52,642 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:10:52,642 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@66b8936, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:10:52,642 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2025-02-08 05:10:52,682 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:10:52,683 INFO L124 PetriNetUnfolderBase]: 2/93 cut-off events. [2025-02-08 05:10:52,683 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-08 05:10:52,683 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:52,683 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:10:52,683 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-02-08 05:10:52,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:52,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1046250785, now seen corresponding path program 1 times [2025-02-08 05:10:52,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:52,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587925555] [2025-02-08 05:10:52,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:52,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:52,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-08 05:10:52,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-08 05:10:52,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:52,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:10:52,703 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:10:52,706 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-08 05:10:52,718 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-08 05:10:52,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:52,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:10:52,729 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:10:52,729 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:10:52,729 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2025-02-08 05:10:52,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2025-02-08 05:10:52,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2025-02-08 05:10:52,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2025-02-08 05:10:52,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2025-02-08 05:10:52,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2025-02-08 05:10:52,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2025-02-08 05:10:52,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2025-02-08 05:10:52,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2025-02-08 05:10:52,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2025-02-08 05:10:52,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2025-02-08 05:10:52,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2025-02-08 05:10:52,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2025-02-08 05:10:52,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2025-02-08 05:10:52,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2025-02-08 05:10:52,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2025-02-08 05:10:52,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2025-02-08 05:10:52,730 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2025-02-08 05:10:52,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2025-02-08 05:10:52,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2025-02-08 05:10:52,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2025-02-08 05:10:52,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2025-02-08 05:10:52,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2025-02-08 05:10:52,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2025-02-08 05:10:52,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2025-02-08 05:10:52,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2025-02-08 05:10:52,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2025-02-08 05:10:52,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2025-02-08 05:10:52,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2025-02-08 05:10:52,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2025-02-08 05:10:52,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2025-02-08 05:10:52,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2025-02-08 05:10:52,731 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2025-02-08 05:10:52,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:10:52,731 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 05:10:52,732 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:10:52,732 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-02-08 05:10:52,812 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:10:52,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 383 places, 406 transitions, 840 flow [2025-02-08 05:10:52,875 INFO L124 PetriNetUnfolderBase]: 32/440 cut-off events. [2025-02-08 05:10:52,875 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-08 05:10:52,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 440 events. 32/440 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1900 event pairs, 0 based on Foata normal form. 0/367 useless extension candidates. Maximal degree in co-relation 381. Up to 5 conditions per place. [2025-02-08 05:10:52,885 INFO L82 GeneralOperation]: Start removeDead. Operand has 383 places, 406 transitions, 840 flow [2025-02-08 05:10:52,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 383 places, 406 transitions, 840 flow [2025-02-08 05:10:52,892 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:10:52,893 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@66b8936, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:10:52,893 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2025-02-08 05:10:52,904 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:10:52,905 INFO L124 PetriNetUnfolderBase]: 3/136 cut-off events. [2025-02-08 05:10:52,905 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-08 05:10:52,905 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:52,905 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 4, 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] [2025-02-08 05:10:52,905 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-02-08 05:10:52,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:52,906 INFO L85 PathProgramCache]: Analyzing trace with hash -2016805564, now seen corresponding path program 1 times [2025-02-08 05:10:52,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:52,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83327381] [2025-02-08 05:10:52,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:52,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:52,922 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-08 05:10:52,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-08 05:10:52,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:52,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:10:52,936 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:10:52,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-08 05:10:52,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-08 05:10:52,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:52,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:10:52,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:10:52,991 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:10:52,991 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2025-02-08 05:10:52,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2025-02-08 05:10:52,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2025-02-08 05:10:52,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2025-02-08 05:10:52,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2025-02-08 05:10:52,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2025-02-08 05:10:52,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (34 of 41 remaining) [2025-02-08 05:10:52,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2025-02-08 05:10:52,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2025-02-08 05:10:52,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2025-02-08 05:10:52,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2025-02-08 05:10:52,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2025-02-08 05:10:52,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2025-02-08 05:10:52,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2025-02-08 05:10:52,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2025-02-08 05:10:52,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2025-02-08 05:10:52,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2025-02-08 05:10:52,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2025-02-08 05:10:52,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 05:10:52,993 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 05:10:52,993 WARN L246 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:10:52,993 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2025-02-08 05:10:53,098 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:10:53,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 471 places, 500 transitions, 1040 flow [2025-02-08 05:10:53,223 INFO L124 PetriNetUnfolderBase]: 40/543 cut-off events. [2025-02-08 05:10:53,224 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2025-02-08 05:10:53,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 543 events. 40/543 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2593 event pairs, 0 based on Foata normal form. 0/452 useless extension candidates. Maximal degree in co-relation 474. Up to 6 conditions per place. [2025-02-08 05:10:53,228 INFO L82 GeneralOperation]: Start removeDead. Operand has 471 places, 500 transitions, 1040 flow [2025-02-08 05:10:53,234 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 471 places, 500 transitions, 1040 flow [2025-02-08 05:10:53,236 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:10:53,237 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@66b8936, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:10:53,237 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2025-02-08 05:10:53,261 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:10:53,263 INFO L124 PetriNetUnfolderBase]: 4/167 cut-off events. [2025-02-08 05:10:53,263 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-02-08 05:10:53,263 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:53,263 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:10:53,264 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-02-08 05:10:53,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:53,264 INFO L85 PathProgramCache]: Analyzing trace with hash 423620244, now seen corresponding path program 1 times [2025-02-08 05:10:53,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:53,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402081361] [2025-02-08 05:10:53,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:53,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:53,274 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-02-08 05:10:53,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-02-08 05:10:53,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:53,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:10:53,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:10:53,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:10:53,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402081361] [2025-02-08 05:10:53,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402081361] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:10:53,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:10:53,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:10:53,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361227077] [2025-02-08 05:10:53,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:10:53,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:10:53,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:10:53,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:10:53,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:10:54,803 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 500 [2025-02-08 05:10:54,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 500 transitions, 1040 flow. Second operand has 6 states, 6 states have (on average 433.6666666666667) internal successors, (2602), 6 states have internal predecessors, (2602), 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) [2025-02-08 05:10:54,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:10:54,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 500 [2025-02-08 05:10:54,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:10:59,502 INFO L124 PetriNetUnfolderBase]: 1778/16712 cut-off events. [2025-02-08 05:10:59,502 INFO L125 PetriNetUnfolderBase]: For 3507/3507 co-relation queries the response was YES. [2025-02-08 05:10:59,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19758 conditions, 16712 events. 1778/16712 cut-off events. For 3507/3507 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 208375 event pairs, 702 based on Foata normal form. 3568/18070 useless extension candidates. Maximal degree in co-relation 8625. Up to 1468 conditions per place. [2025-02-08 05:10:59,815 INFO L140 encePairwiseOnDemand]: 448/500 looper letters, 37 selfloop transitions, 22 changer transitions 0/483 dead transitions. [2025-02-08 05:10:59,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 483 transitions, 1252 flow [2025-02-08 05:10:59,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:10:59,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:10:59,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2825 transitions. [2025-02-08 05:10:59,841 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9416666666666667 [2025-02-08 05:10:59,842 INFO L175 Difference]: Start difference. First operand has 471 places, 500 transitions, 1040 flow. Second operand 6 states and 2825 transitions. [2025-02-08 05:10:59,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 483 transitions, 1252 flow [2025-02-08 05:10:59,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 483 transitions, 1192 flow, removed 30 selfloop flow, removed 0 redundant places. [2025-02-08 05:10:59,864 INFO L231 Difference]: Finished difference. Result has 447 places, 467 transitions, 1070 flow [2025-02-08 05:10:59,866 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=920, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1070, PETRI_PLACES=447, PETRI_TRANSITIONS=467} [2025-02-08 05:10:59,868 INFO L279 CegarLoopForPetriNet]: 471 programPoint places, -24 predicate places. [2025-02-08 05:10:59,868 INFO L471 AbstractCegarLoop]: Abstraction has has 447 places, 467 transitions, 1070 flow [2025-02-08 05:10:59,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 433.6666666666667) internal successors, (2602), 6 states have internal predecessors, (2602), 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) [2025-02-08 05:10:59,872 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:10:59,872 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:10:59,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 05:10:59,872 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-02-08 05:10:59,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:10:59,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1387742237, now seen corresponding path program 1 times [2025-02-08 05:10:59,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:10:59,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555228730] [2025-02-08 05:10:59,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:10:59,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:10:59,886 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-02-08 05:10:59,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-02-08 05:10:59,894 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:10:59,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:10:59,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:10:59,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:10:59,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555228730] [2025-02-08 05:10:59,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555228730] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:10:59,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:10:59,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:10:59,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136831006] [2025-02-08 05:10:59,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:10:59,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:10:59,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:10:59,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:10:59,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:10:59,954 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 500 [2025-02-08 05:10:59,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 467 transitions, 1070 flow. Second operand has 3 states, 3 states have (on average 439.0) internal successors, (1317), 3 states have internal predecessors, (1317), 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) [2025-02-08 05:10:59,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:10:59,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 500 [2025-02-08 05:10:59,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:11:04,782 INFO L124 PetriNetUnfolderBase]: 2510/21794 cut-off events. [2025-02-08 05:11:04,783 INFO L125 PetriNetUnfolderBase]: For 3725/6082 co-relation queries the response was YES. [2025-02-08 05:11:05,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27789 conditions, 21794 events. 2510/21794 cut-off events. For 3725/6082 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 287169 event pairs, 711 based on Foata normal form. 63/18977 useless extension candidates. Maximal degree in co-relation 25927. Up to 1659 conditions per place. [2025-02-08 05:11:05,135 INFO L140 encePairwiseOnDemand]: 497/500 looper letters, 57 selfloop transitions, 3 changer transitions 0/493 dead transitions. [2025-02-08 05:11:05,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 493 transitions, 1340 flow [2025-02-08 05:11:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:11:05,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:11:05,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1338 transitions. [2025-02-08 05:11:05,141 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.892 [2025-02-08 05:11:05,141 INFO L175 Difference]: Start difference. First operand has 447 places, 467 transitions, 1070 flow. Second operand 3 states and 1338 transitions. [2025-02-08 05:11:05,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 493 transitions, 1340 flow [2025-02-08 05:11:05,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 493 transitions, 1340 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:11:05,154 INFO L231 Difference]: Finished difference. Result has 450 places, 469 transitions, 1095 flow [2025-02-08 05:11:05,155 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=1070, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1095, PETRI_PLACES=450, PETRI_TRANSITIONS=469} [2025-02-08 05:11:05,157 INFO L279 CegarLoopForPetriNet]: 471 programPoint places, -21 predicate places. [2025-02-08 05:11:05,157 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 469 transitions, 1095 flow [2025-02-08 05:11:05,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 439.0) internal successors, (1317), 3 states have internal predecessors, (1317), 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) [2025-02-08 05:11:05,158 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:11:05,158 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 5, 5, 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] [2025-02-08 05:11:05,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 05:11:05,158 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-02-08 05:11:05,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:11:05,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1020573662, now seen corresponding path program 1 times [2025-02-08 05:11:05,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:11:05,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122939266] [2025-02-08 05:11:05,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:11:05,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:11:05,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-02-08 05:11:05,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-02-08 05:11:05,176 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:11:05,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:11:05,177 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:11:05,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-02-08 05:11:05,186 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-02-08 05:11:05,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:11:05,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:11:05,203 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:11:05,203 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:11:05,203 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2025-02-08 05:11:05,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2025-02-08 05:11:05,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2025-02-08 05:11:05,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2025-02-08 05:11:05,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2025-02-08 05:11:05,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2025-02-08 05:11:05,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2025-02-08 05:11:05,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2025-02-08 05:11:05,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2025-02-08 05:11:05,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2025-02-08 05:11:05,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2025-02-08 05:11:05,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2025-02-08 05:11:05,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2025-02-08 05:11:05,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 05:11:05,205 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-08 05:11:05,205 WARN L246 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:11:05,205 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2025-02-08 05:11:05,330 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:11:05,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 559 places, 594 transitions, 1242 flow [2025-02-08 05:11:05,420 INFO L124 PetriNetUnfolderBase]: 48/646 cut-off events. [2025-02-08 05:11:05,420 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2025-02-08 05:11:05,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 646 events. 48/646 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3256 event pairs, 0 based on Foata normal form. 0/537 useless extension candidates. Maximal degree in co-relation 567. Up to 7 conditions per place. [2025-02-08 05:11:05,433 INFO L82 GeneralOperation]: Start removeDead. Operand has 559 places, 594 transitions, 1242 flow [2025-02-08 05:11:05,440 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 559 places, 594 transitions, 1242 flow [2025-02-08 05:11:05,440 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:11:05,441 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@66b8936, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:11:05,441 INFO L334 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2025-02-08 05:11:05,450 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:11:05,450 INFO L124 PetriNetUnfolderBase]: 4/167 cut-off events. [2025-02-08 05:11:05,450 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-02-08 05:11:05,450 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:11:05,450 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:11:05,451 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2025-02-08 05:11:05,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:11:05,451 INFO L85 PathProgramCache]: Analyzing trace with hash -306371031, now seen corresponding path program 1 times [2025-02-08 05:11:05,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:11:05,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193325670] [2025-02-08 05:11:05,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:11:05,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:11:05,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-02-08 05:11:05,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-02-08 05:11:05,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:11:05,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:11:05,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:11:05,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:11:05,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193325670] [2025-02-08 05:11:05,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193325670] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:11:05,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:11:05,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:11:05,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732378871] [2025-02-08 05:11:05,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:11:05,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:11:05,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:11:05,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:11:05,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:11:06,658 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 515 out of 594 [2025-02-08 05:11:06,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 559 places, 594 transitions, 1242 flow. Second operand has 6 states, 6 states have (on average 516.6666666666666) internal successors, (3100), 6 states have internal predecessors, (3100), 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) [2025-02-08 05:11:06,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:11:06,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 515 of 594 [2025-02-08 05:11:06,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:11:17,274 INFO L124 PetriNetUnfolderBase]: 4259/35694 cut-off events. [2025-02-08 05:11:17,277 INFO L125 PetriNetUnfolderBase]: For 10549/10549 co-relation queries the response was YES. [2025-02-08 05:11:18,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43131 conditions, 35694 events. 4259/35694 cut-off events. For 10549/10549 co-relation queries the response was YES. Maximal size of possible extension queue 585. Compared 500411 event pairs, 1856 based on Foata normal form. 9408/40408 useless extension candidates. Maximal degree in co-relation 19695. Up to 3613 conditions per place. [2025-02-08 05:11:18,389 INFO L140 encePairwiseOnDemand]: 533/594 looper letters, 43 selfloop transitions, 26 changer transitions 0/575 dead transitions. [2025-02-08 05:11:18,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 575 transitions, 1522 flow [2025-02-08 05:11:18,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:11:18,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:11:18,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3373 transitions. [2025-02-08 05:11:18,401 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9464085297418631 [2025-02-08 05:11:18,404 INFO L175 Difference]: Start difference. First operand has 559 places, 594 transitions, 1242 flow. Second operand 6 states and 3373 transitions. [2025-02-08 05:11:18,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 524 places, 575 transitions, 1522 flow [2025-02-08 05:11:18,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 575 transitions, 1422 flow, removed 50 selfloop flow, removed 0 redundant places. [2025-02-08 05:11:18,418 INFO L231 Difference]: Finished difference. Result has 529 places, 555 transitions, 1270 flow [2025-02-08 05:11:18,419 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1094, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1270, PETRI_PLACES=529, PETRI_TRANSITIONS=555} [2025-02-08 05:11:18,420 INFO L279 CegarLoopForPetriNet]: 559 programPoint places, -30 predicate places. [2025-02-08 05:11:18,420 INFO L471 AbstractCegarLoop]: Abstraction has has 529 places, 555 transitions, 1270 flow [2025-02-08 05:11:18,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 516.6666666666666) internal successors, (3100), 6 states have internal predecessors, (3100), 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) [2025-02-08 05:11:18,424 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:11:18,424 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:11:18,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 05:11:18,424 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2025-02-08 05:11:18,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:11:18,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1752332608, now seen corresponding path program 1 times [2025-02-08 05:11:18,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:11:18,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030986581] [2025-02-08 05:11:18,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:11:18,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:11:18,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-02-08 05:11:18,441 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-02-08 05:11:18,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:11:18,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:11:18,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:11:18,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:11:18,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030986581] [2025-02-08 05:11:18,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030986581] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:11:18,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:11:18,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:11:18,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526845004] [2025-02-08 05:11:18,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:11:18,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:11:18,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:11:18,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:11:18,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:11:18,562 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 520 out of 594 [2025-02-08 05:11:18,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 555 transitions, 1270 flow. Second operand has 3 states, 3 states have (on average 522.0) internal successors, (1566), 3 states have internal predecessors, (1566), 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) [2025-02-08 05:11:18,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:11:18,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 520 of 594 [2025-02-08 05:11:18,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:11:31,531 INFO L124 PetriNetUnfolderBase]: 6247/49551 cut-off events. [2025-02-08 05:11:31,531 INFO L125 PetriNetUnfolderBase]: For 9909/14755 co-relation queries the response was YES. [2025-02-08 05:11:32,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63996 conditions, 49551 events. 6247/49551 cut-off events. For 9909/14755 co-relation queries the response was YES. Maximal size of possible extension queue 828. Compared 735799 event pairs, 1834 based on Foata normal form. 153/43224 useless extension candidates. Maximal degree in co-relation 60263. Up to 4286 conditions per place. [2025-02-08 05:11:32,897 INFO L140 encePairwiseOnDemand]: 591/594 looper letters, 69 selfloop transitions, 3 changer transitions 0/587 dead transitions. [2025-02-08 05:11:32,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 587 transitions, 1599 flow [2025-02-08 05:11:32,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:11:32,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:11:32,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1591 transitions. [2025-02-08 05:11:32,901 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8928170594837261 [2025-02-08 05:11:32,901 INFO L175 Difference]: Start difference. First operand has 529 places, 555 transitions, 1270 flow. Second operand 3 states and 1591 transitions. [2025-02-08 05:11:32,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 587 transitions, 1599 flow [2025-02-08 05:11:32,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 587 transitions, 1599 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:11:32,923 INFO L231 Difference]: Finished difference. Result has 532 places, 557 transitions, 1295 flow [2025-02-08 05:11:32,924 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1270, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=555, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=552, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1295, PETRI_PLACES=532, PETRI_TRANSITIONS=557} [2025-02-08 05:11:32,924 INFO L279 CegarLoopForPetriNet]: 559 programPoint places, -27 predicate places. [2025-02-08 05:11:32,924 INFO L471 AbstractCegarLoop]: Abstraction has has 532 places, 557 transitions, 1295 flow [2025-02-08 05:11:32,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 522.0) internal successors, (1566), 3 states have internal predecessors, (1566), 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) [2025-02-08 05:11:32,925 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:11:32,925 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:11:32,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 05:11:32,925 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2025-02-08 05:11:32,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:11:32,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1790899286, now seen corresponding path program 1 times [2025-02-08 05:11:32,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:11:32,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970699042] [2025-02-08 05:11:32,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:11:32,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:11:32,936 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-02-08 05:11:32,939 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-02-08 05:11:32,939 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:11:32,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:11:33,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:11:33,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:11:33,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970699042] [2025-02-08 05:11:33,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970699042] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:11:33,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:11:33,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:11:33,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815084253] [2025-02-08 05:11:33,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:11:33,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:11:33,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:11:33,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:11:33,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:11:34,111 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 515 out of 594 [2025-02-08 05:11:34,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 557 transitions, 1295 flow. Second operand has 6 states, 6 states have (on average 516.8333333333334) internal successors, (3101), 6 states have internal predecessors, (3101), 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) [2025-02-08 05:11:34,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:11:34,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 515 of 594 [2025-02-08 05:11:34,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand