./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc 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/36_stack_cas_p0_vs_concur-race.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 e7fe0631e7f950e2868c8cb954edca4f6de3fdffbf6debba58771511fbac2e8b --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:00:37,593 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:00:37,641 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:00:37,644 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:00:37,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:00:37,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:00:37,658 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:00:37,659 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:00:37,659 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:00:37,659 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:00:37,659 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:00:37,659 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:00:37,659 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:00:37,659 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:00:37,659 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:00:37,659 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:00:37,659 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:00:37,659 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:00:37,659 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:00:37,659 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:00:37,660 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:00:37,660 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:00:37,660 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:00:37,660 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:00:37,660 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:00:37,660 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:00:37,660 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:00:37,660 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:00:37,660 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:00:37,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:00:37,660 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:00:37,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:00:37,660 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:00:37,660 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:00:37,660 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:00:37,660 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:00:37,660 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:00:37,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:00:37,660 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:00:37,660 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:00:37,661 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:00:37,661 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:00:37,661 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 -> e7fe0631e7f950e2868c8cb954edca4f6de3fdffbf6debba58771511fbac2e8b [2025-02-06 09:00:37,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:00:37,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:00:37,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:00:37,883 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:00:37,883 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:00:37,884 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i [2025-02-06 09:00:39,018 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2105cf17f/bf65d4739b2b49dc83b8622bee8e684b/FLAGec201f428 [2025-02-06 09:00:39,361 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:00:39,362 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i [2025-02-06 09:00:39,374 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2105cf17f/bf65d4739b2b49dc83b8622bee8e684b/FLAGec201f428 [2025-02-06 09:00:39,619 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2105cf17f/bf65d4739b2b49dc83b8622bee8e684b [2025-02-06 09:00:39,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:00:39,622 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:00:39,623 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:00:39,623 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:00:39,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:00:39,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:00:39" (1/1) ... [2025-02-06 09:00:39,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@151009c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:39, skipping insertion in model container [2025-02-06 09:00:39,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:00:39" (1/1) ... [2025-02-06 09:00:39,642 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:00:39,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:00:39,834 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:00:39,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:00:39,904 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:00:39,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:39 WrapperNode [2025-02-06 09:00:39,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:00:39,906 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:00:39,906 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:00:39,906 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:00:39,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:39" (1/1) ... [2025-02-06 09:00:39,929 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:39" (1/1) ... [2025-02-06 09:00:39,953 INFO L138 Inliner]: procedures = 170, calls = 33, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 246 [2025-02-06 09:00:39,957 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:00:39,958 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:00:39,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:00:39,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:00:39,963 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:39" (1/1) ... [2025-02-06 09:00:39,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:39" (1/1) ... [2025-02-06 09:00:39,971 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:39" (1/1) ... [2025-02-06 09:00:39,971 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:39" (1/1) ... [2025-02-06 09:00:39,981 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:39" (1/1) ... [2025-02-06 09:00:39,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:39" (1/1) ... [2025-02-06 09:00:39,984 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:39" (1/1) ... [2025-02-06 09:00:39,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:39" (1/1) ... [2025-02-06 09:00:39,986 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:00:39,987 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:00:39,987 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:00:39,987 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:00:39,987 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:39" (1/1) ... [2025-02-06 09:00:39,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:00:40,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:00:40,024 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) [2025-02-06 09:00:40,028 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 [2025-02-06 09:00:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:00:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-06 09:00:40,054 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-06 09:00:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:00:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:00:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:00:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:00:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:00:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:00:40,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:00:40,055 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:00:40,155 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:00:40,156 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:00:40,590 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:00:40,590 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:00:40,697 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:00:40,697 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:00:40,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:00:40 BoogieIcfgContainer [2025-02-06 09:00:40,698 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:00:40,699 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:00:40,699 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:00:40,702 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:00:40,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:00:39" (1/3) ... [2025-02-06 09:00:40,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47fe6950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:00:40, skipping insertion in model container [2025-02-06 09:00:40,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:00:39" (2/3) ... [2025-02-06 09:00:40,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47fe6950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:00:40, skipping insertion in model container [2025-02-06 09:00:40,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:00:40" (3/3) ... [2025-02-06 09:00:40,704 INFO L128 eAbstractionObserver]: Analyzing ICFG 36_stack_cas_p0_vs_concur-race.i [2025-02-06 09:00:40,713 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:00:40,714 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 36_stack_cas_p0_vs_concur-race.i that has 2 procedures, 208 locations, 1 initial locations, 3 loop locations, and 19 error locations. [2025-02-06 09:00:40,714 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:00:40,822 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:00:40,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 216 transitions, 436 flow [2025-02-06 09:00:40,907 INFO L124 PetriNetUnfolderBase]: 8/223 cut-off events. [2025-02-06 09:00:40,912 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:00:40,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 223 events. 8/223 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 184 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 136. Up to 3 conditions per place. [2025-02-06 09:00:40,919 INFO L82 GeneralOperation]: Start removeDead. Operand has 211 places, 216 transitions, 436 flow [2025-02-06 09:00:40,923 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 211 places, 216 transitions, 436 flow [2025-02-06 09:00:40,929 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:00:40,935 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;@192711ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:00:40,936 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2025-02-06 09:00:40,956 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:00:40,956 INFO L124 PetriNetUnfolderBase]: 0/102 cut-off events. [2025-02-06 09:00:40,956 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:00:40,957 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:40,957 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, 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] [2025-02-06 09:00:40,958 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2025-02-06 09:00:40,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:40,963 INFO L85 PathProgramCache]: Analyzing trace with hash 785760111, now seen corresponding path program 1 times [2025-02-06 09:00:40,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:40,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509591005] [2025-02-06 09:00:40,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:40,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:41,035 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-02-06 09:00:41,068 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-02-06 09:00:41,068 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:41,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:00:41,069 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:00:41,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-02-06 09:00:41,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-02-06 09:00:41,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:41,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:00:41,156 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:00:41,158 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:00:41,159 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2025-02-06 09:00:41,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2025-02-06 09:00:41,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2025-02-06 09:00:41,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2025-02-06 09:00:41,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2025-02-06 09:00:41,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2025-02-06 09:00:41,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2025-02-06 09:00:41,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2025-02-06 09:00:41,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2025-02-06 09:00:41,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2025-02-06 09:00:41,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2025-02-06 09:00:41,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2025-02-06 09:00:41,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2025-02-06 09:00:41,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2025-02-06 09:00:41,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2025-02-06 09:00:41,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2025-02-06 09:00:41,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2025-02-06 09:00:41,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2025-02-06 09:00:41,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2025-02-06 09:00:41,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2025-02-06 09:00:41,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2025-02-06 09:00:41,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2025-02-06 09:00:41,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2025-02-06 09:00:41,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2025-02-06 09:00:41,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2025-02-06 09:00:41,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2025-02-06 09:00:41,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2025-02-06 09:00:41,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2025-02-06 09:00:41,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2025-02-06 09:00:41,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2025-02-06 09:00:41,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2025-02-06 09:00:41,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2025-02-06 09:00:41,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2025-02-06 09:00:41,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2025-02-06 09:00:41,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2025-02-06 09:00:41,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2025-02-06 09:00:41,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2025-02-06 09:00:41,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2025-02-06 09:00:41,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2025-02-06 09:00:41,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:00:41,168 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-06 09:00:41,171 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:00:41,172 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 09:00:41,251 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:00:41,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 333 places, 344 transitions, 698 flow [2025-02-06 09:00:41,370 INFO L124 PetriNetUnfolderBase]: 16/360 cut-off events. [2025-02-06 09:00:41,371 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 09:00:41,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 360 events. 16/360 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 734 event pairs, 0 based on Foata normal form. 0/303 useless extension candidates. Maximal degree in co-relation 263. Up to 3 conditions per place. [2025-02-06 09:00:41,379 INFO L82 GeneralOperation]: Start removeDead. Operand has 333 places, 344 transitions, 698 flow [2025-02-06 09:00:41,384 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 333 places, 344 transitions, 698 flow [2025-02-06 09:00:41,385 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:00:41,386 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;@192711ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:00:41,386 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2025-02-06 09:00:41,399 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:00:41,400 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2025-02-06 09:00:41,400 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:00:41,400 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:41,400 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, 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] [2025-02-06 09:00:41,400 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err18ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2025-02-06 09:00:41,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:41,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1096647149, now seen corresponding path program 1 times [2025-02-06 09:00:41,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:41,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922504030] [2025-02-06 09:00:41,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:41,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:41,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-02-06 09:00:41,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-02-06 09:00:41,463 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:41,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:00:41,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:00:41,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:00:41,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922504030] [2025-02-06 09:00:41,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922504030] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:00:41,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:00:41,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 09:00:41,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844590877] [2025-02-06 09:00:41,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:00:41,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:00:41,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:00:41,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:00:41,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:00:41,622 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 344 [2025-02-06 09:00:41,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 344 transitions, 698 flow. Second operand has 2 states, 2 states have (on average 304.0) internal successors, (608), 2 states have internal predecessors, (608), 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) [2025-02-06 09:00:41,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:00:41,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 344 [2025-02-06 09:00:41,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:00:41,762 INFO L124 PetriNetUnfolderBase]: 25/533 cut-off events. [2025-02-06 09:00:41,762 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2025-02-06 09:00:41,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 573 conditions, 533 events. 25/533 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1375 event pairs, 6 based on Foata normal form. 41/512 useless extension candidates. Maximal degree in co-relation 197. Up to 26 conditions per place. [2025-02-06 09:00:41,781 INFO L140 encePairwiseOnDemand]: 313/344 looper letters, 8 selfloop transitions, 0 changer transitions 0/294 dead transitions. [2025-02-06 09:00:41,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 294 transitions, 614 flow [2025-02-06 09:00:41,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:00:41,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 09:00:41,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 645 transitions. [2025-02-06 09:00:41,795 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9375 [2025-02-06 09:00:41,797 INFO L175 Difference]: Start difference. First operand has 333 places, 344 transitions, 698 flow. Second operand 2 states and 645 transitions. [2025-02-06 09:00:41,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 294 transitions, 614 flow [2025-02-06 09:00:41,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 294 transitions, 614 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:00:41,808 INFO L231 Difference]: Finished difference. Result has 292 places, 294 transitions, 598 flow [2025-02-06 09:00:41,810 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=598, PETRI_PLACES=292, PETRI_TRANSITIONS=294} [2025-02-06 09:00:41,812 INFO L279 CegarLoopForPetriNet]: 333 programPoint places, -41 predicate places. [2025-02-06 09:00:41,812 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 294 transitions, 598 flow [2025-02-06 09:00:41,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 304.0) internal successors, (608), 2 states have internal predecessors, (608), 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) [2025-02-06 09:00:41,813 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:41,813 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, 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, 1, 1, 1, 1, 1, 1] [2025-02-06 09:00:41,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 09:00:41,813 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2025-02-06 09:00:41,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:41,814 INFO L85 PathProgramCache]: Analyzing trace with hash 175521262, now seen corresponding path program 1 times [2025-02-06 09:00:41,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:41,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871598792] [2025-02-06 09:00:41,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:41,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:41,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-06 09:00:41,860 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-06 09:00:41,860 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:41,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:00:41,861 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:00:41,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-06 09:00:41,875 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-06 09:00:41,875 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:41,875 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:00:41,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:00:41,883 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:00:41,883 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2025-02-06 09:00:41,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2025-02-06 09:00:41,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2025-02-06 09:00:41,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2025-02-06 09:00:41,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2025-02-06 09:00:41,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2025-02-06 09:00:41,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2025-02-06 09:00:41,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2025-02-06 09:00:41,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2025-02-06 09:00:41,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2025-02-06 09:00:41,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2025-02-06 09:00:41,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2025-02-06 09:00:41,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2025-02-06 09:00:41,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2025-02-06 09:00:41,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2025-02-06 09:00:41,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2025-02-06 09:00:41,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2025-02-06 09:00:41,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2025-02-06 09:00:41,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2025-02-06 09:00:41,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2025-02-06 09:00:41,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2025-02-06 09:00:41,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2025-02-06 09:00:41,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2025-02-06 09:00:41,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2025-02-06 09:00:41,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2025-02-06 09:00:41,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2025-02-06 09:00:41,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2025-02-06 09:00:41,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2025-02-06 09:00:41,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2025-02-06 09:00:41,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2025-02-06 09:00:41,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2025-02-06 09:00:41,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2025-02-06 09:00:41,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2025-02-06 09:00:41,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2025-02-06 09:00:41,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2025-02-06 09:00:41,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2025-02-06 09:00:41,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2025-02-06 09:00:41,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2025-02-06 09:00:41,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2025-02-06 09:00:41,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2025-02-06 09:00:41,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2025-02-06 09:00:41,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2025-02-06 09:00:41,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2025-02-06 09:00:41,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2025-02-06 09:00:41,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2025-02-06 09:00:41,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2025-02-06 09:00:41,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2025-02-06 09:00:41,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2025-02-06 09:00:41,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2025-02-06 09:00:41,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2025-02-06 09:00:41,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2025-02-06 09:00:41,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2025-02-06 09:00:41,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2025-02-06 09:00:41,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2025-02-06 09:00:41,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2025-02-06 09:00:41,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2025-02-06 09:00:41,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2025-02-06 09:00:41,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2025-02-06 09:00:41,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:00:41,887 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 09:00:41,888 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:00:41,888 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-06 09:00:41,962 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:00:41,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 455 places, 472 transitions, 962 flow [2025-02-06 09:00:42,053 INFO L124 PetriNetUnfolderBase]: 24/497 cut-off events. [2025-02-06 09:00:42,054 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-06 09:00:42,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 510 conditions, 497 events. 24/497 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1509 event pairs, 0 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 390. Up to 4 conditions per place. [2025-02-06 09:00:42,059 INFO L82 GeneralOperation]: Start removeDead. Operand has 455 places, 472 transitions, 962 flow [2025-02-06 09:00:42,063 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 455 places, 472 transitions, 962 flow [2025-02-06 09:00:42,064 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:00:42,064 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;@192711ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:00:42,064 INFO L334 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2025-02-06 09:00:42,070 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:00:42,071 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2025-02-06 09:00:42,071 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:00:42,071 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:42,071 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, 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] [2025-02-06 09:00:42,071 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err18ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2025-02-06 09:00:42,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:42,072 INFO L85 PathProgramCache]: Analyzing trace with hash -237146478, now seen corresponding path program 1 times [2025-02-06 09:00:42,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:42,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479536379] [2025-02-06 09:00:42,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:42,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:42,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-02-06 09:00:42,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-02-06 09:00:42,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:42,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:00:42,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:00:42,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:00:42,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479536379] [2025-02-06 09:00:42,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479536379] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:00:42,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:00:42,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 09:00:42,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548852348] [2025-02-06 09:00:42,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:00:42,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:00:42,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:00:42,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:00:42,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:00:42,156 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 472 [2025-02-06 09:00:42,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 472 transitions, 962 flow. Second operand has 2 states, 2 states have (on average 412.0) internal successors, (824), 2 states have internal predecessors, (824), 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) [2025-02-06 09:00:42,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:00:42,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 472 [2025-02-06 09:00:42,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:00:42,546 INFO L124 PetriNetUnfolderBase]: 115/1583 cut-off events. [2025-02-06 09:00:42,547 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2025-02-06 09:00:42,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1750 conditions, 1583 events. 115/1583 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 8802 event pairs, 42 based on Foata normal form. 172/1536 useless extension candidates. Maximal degree in co-relation 566. Up to 116 conditions per place. [2025-02-06 09:00:42,573 INFO L140 encePairwiseOnDemand]: 426/472 looper letters, 12 selfloop transitions, 0 changer transitions 0/399 dead transitions. [2025-02-06 09:00:42,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 399 transitions, 840 flow [2025-02-06 09:00:42,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:00:42,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 09:00:42,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 880 transitions. [2025-02-06 09:00:42,576 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9322033898305084 [2025-02-06 09:00:42,576 INFO L175 Difference]: Start difference. First operand has 455 places, 472 transitions, 962 flow. Second operand 2 states and 880 transitions. [2025-02-06 09:00:42,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 399 transitions, 840 flow [2025-02-06 09:00:42,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 399 transitions, 838 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-02-06 09:00:42,584 INFO L231 Difference]: Finished difference. Result has 395 places, 399 transitions, 814 flow [2025-02-06 09:00:42,584 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=814, PETRI_PLACES=395, PETRI_TRANSITIONS=399} [2025-02-06 09:00:42,585 INFO L279 CegarLoopForPetriNet]: 455 programPoint places, -60 predicate places. [2025-02-06 09:00:42,585 INFO L471 AbstractCegarLoop]: Abstraction has has 395 places, 399 transitions, 814 flow [2025-02-06 09:00:42,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 412.0) internal successors, (824), 2 states have internal predecessors, (824), 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) [2025-02-06 09:00:42,586 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:42,586 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, 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] [2025-02-06 09:00:42,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 09:00:42,587 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2025-02-06 09:00:42,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:42,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1623283452, now seen corresponding path program 1 times [2025-02-06 09:00:42,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:42,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355571821] [2025-02-06 09:00:42,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:42,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:42,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-02-06 09:00:42,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-02-06 09:00:42,647 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:42,647 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:00:43,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:00:43,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:00:43,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355571821] [2025-02-06 09:00:43,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355571821] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:00:43,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:00:43,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:00:43,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839760288] [2025-02-06 09:00:43,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:00:43,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:00:43,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:00:43,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:00:43,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:00:44,131 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 472 [2025-02-06 09:00:44,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 399 transitions, 814 flow. Second operand has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 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) [2025-02-06 09:00:44,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:00:44,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 472 [2025-02-06 09:00:44,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:00:46,341 INFO L124 PetriNetUnfolderBase]: 1813/14248 cut-off events. [2025-02-06 09:00:46,342 INFO L125 PetriNetUnfolderBase]: For 646/646 co-relation queries the response was YES. [2025-02-06 09:00:46,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17037 conditions, 14248 events. 1813/14248 cut-off events. For 646/646 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 162979 event pairs, 263 based on Foata normal form. 0/12014 useless extension candidates. Maximal degree in co-relation 17031. Up to 1696 conditions per place. [2025-02-06 09:00:46,481 INFO L140 encePairwiseOnDemand]: 440/472 looper letters, 56 selfloop transitions, 46 changer transitions 0/461 dead transitions. [2025-02-06 09:00:46,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 461 transitions, 1182 flow [2025-02-06 09:00:46,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:00:46,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:00:46,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2398 transitions. [2025-02-06 09:00:46,486 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8467514124293786 [2025-02-06 09:00:46,486 INFO L175 Difference]: Start difference. First operand has 395 places, 399 transitions, 814 flow. Second operand 6 states and 2398 transitions. [2025-02-06 09:00:46,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 461 transitions, 1182 flow [2025-02-06 09:00:46,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 461 transitions, 1182 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:00:46,496 INFO L231 Difference]: Finished difference. Result has 405 places, 444 transitions, 1150 flow [2025-02-06 09:00:46,497 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1150, PETRI_PLACES=405, PETRI_TRANSITIONS=444} [2025-02-06 09:00:46,497 INFO L279 CegarLoopForPetriNet]: 455 programPoint places, -50 predicate places. [2025-02-06 09:00:46,497 INFO L471 AbstractCegarLoop]: Abstraction has has 405 places, 444 transitions, 1150 flow [2025-02-06 09:00:46,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 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) [2025-02-06 09:00:46,499 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:46,499 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, 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, 1, 1, 1, 1, 1, 1] [2025-02-06 09:00:46,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 09:00:46,499 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2025-02-06 09:00:46,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:46,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1635532204, now seen corresponding path program 1 times [2025-02-06 09:00:46,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:46,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985408006] [2025-02-06 09:00:46,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:46,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:46,516 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-02-06 09:00:46,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-02-06 09:00:46,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:46,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:00:46,528 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:00:46,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-02-06 09:00:46,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-02-06 09:00:46,541 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:46,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:00:46,551 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:00:46,551 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:00:46,551 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (76 of 77 remaining) [2025-02-06 09:00:46,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (75 of 77 remaining) [2025-02-06 09:00:46,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (74 of 77 remaining) [2025-02-06 09:00:46,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (73 of 77 remaining) [2025-02-06 09:00:46,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (72 of 77 remaining) [2025-02-06 09:00:46,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (71 of 77 remaining) [2025-02-06 09:00:46,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (70 of 77 remaining) [2025-02-06 09:00:46,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (69 of 77 remaining) [2025-02-06 09:00:46,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (68 of 77 remaining) [2025-02-06 09:00:46,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 77 remaining) [2025-02-06 09:00:46,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (66 of 77 remaining) [2025-02-06 09:00:46,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (65 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (64 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (63 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (62 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (61 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (60 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (59 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (58 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (57 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (56 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (55 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (54 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (53 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (52 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (51 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (50 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (49 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (48 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (46 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (45 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (42 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 77 remaining) [2025-02-06 09:00:46,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (36 of 77 remaining) [2025-02-06 09:00:46,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 77 remaining) [2025-02-06 09:00:46,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 77 remaining) [2025-02-06 09:00:46,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 77 remaining) [2025-02-06 09:00:46,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (32 of 77 remaining) [2025-02-06 09:00:46,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 77 remaining) [2025-02-06 09:00:46,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 77 remaining) [2025-02-06 09:00:46,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 77 remaining) [2025-02-06 09:00:46,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 77 remaining) [2025-02-06 09:00:46,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 77 remaining) [2025-02-06 09:00:46,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (26 of 77 remaining) [2025-02-06 09:00:46,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 77 remaining) [2025-02-06 09:00:46,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 77 remaining) [2025-02-06 09:00:46,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 77 remaining) [2025-02-06 09:00:46,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 77 remaining) [2025-02-06 09:00:46,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 77 remaining) [2025-02-06 09:00:46,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 77 remaining) [2025-02-06 09:00:46,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 77 remaining) [2025-02-06 09:00:46,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 77 remaining) [2025-02-06 09:00:46,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (17 of 77 remaining) [2025-02-06 09:00:46,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (16 of 77 remaining) [2025-02-06 09:00:46,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 77 remaining) [2025-02-06 09:00:46,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 77 remaining) [2025-02-06 09:00:46,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 77 remaining) [2025-02-06 09:00:46,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 77 remaining) [2025-02-06 09:00:46,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 77 remaining) [2025-02-06 09:00:46,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 77 remaining) [2025-02-06 09:00:46,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 77 remaining) [2025-02-06 09:00:46,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 77 remaining) [2025-02-06 09:00:46,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 77 remaining) [2025-02-06 09:00:46,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 77 remaining) [2025-02-06 09:00:46,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 77 remaining) [2025-02-06 09:00:46,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 77 remaining) [2025-02-06 09:00:46,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 77 remaining) [2025-02-06 09:00:46,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 77 remaining) [2025-02-06 09:00:46,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 77 remaining) [2025-02-06 09:00:46,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 77 remaining) [2025-02-06 09:00:46,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 09:00:46,556 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-06 09:00:46,556 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:00:46,556 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-02-06 09:00:46,664 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:00:46,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 577 places, 600 transitions, 1228 flow [2025-02-06 09:00:46,877 INFO L124 PetriNetUnfolderBase]: 32/634 cut-off events. [2025-02-06 09:00:46,877 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-06 09:00:46,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 653 conditions, 634 events. 32/634 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2353 event pairs, 0 based on Foata normal form. 0/521 useless extension candidates. Maximal degree in co-relation 517. Up to 5 conditions per place. [2025-02-06 09:00:46,886 INFO L82 GeneralOperation]: Start removeDead. Operand has 577 places, 600 transitions, 1228 flow [2025-02-06 09:00:46,894 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 577 places, 600 transitions, 1228 flow [2025-02-06 09:00:46,896 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:00:46,897 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;@192711ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:00:46,897 INFO L334 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2025-02-06 09:00:46,903 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:00:46,903 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2025-02-06 09:00:46,903 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:00:46,903 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:46,904 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, 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] [2025-02-06 09:00:46,904 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err18ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2025-02-06 09:00:46,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:46,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1577017711, now seen corresponding path program 1 times [2025-02-06 09:00:46,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:46,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500724666] [2025-02-06 09:00:46,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:46,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:46,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-02-06 09:00:46,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-02-06 09:00:46,931 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:46,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:00:46,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:00:46,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:00:46,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500724666] [2025-02-06 09:00:46,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500724666] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:00:46,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:00:46,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 09:00:46,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822730206] [2025-02-06 09:00:46,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:00:46,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:00:46,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:00:46,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:00:46,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:00:46,955 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 519 out of 600 [2025-02-06 09:00:46,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 600 transitions, 1228 flow. Second operand has 2 states, 2 states have (on average 520.0) internal successors, (1040), 2 states have internal predecessors, (1040), 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) [2025-02-06 09:00:46,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:00:46,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 519 of 600 [2025-02-06 09:00:46,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:00:47,846 INFO L124 PetriNetUnfolderBase]: 466/4814 cut-off events. [2025-02-06 09:00:47,847 INFO L125 PetriNetUnfolderBase]: For 496/496 co-relation queries the response was YES. [2025-02-06 09:00:47,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5468 conditions, 4814 events. 466/4814 cut-off events. For 496/496 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 40425 event pairs, 204 based on Foata normal form. 697/4786 useless extension candidates. Maximal degree in co-relation 1736. Up to 467 conditions per place. [2025-02-06 09:00:47,937 INFO L140 encePairwiseOnDemand]: 539/600 looper letters, 16 selfloop transitions, 0 changer transitions 0/504 dead transitions. [2025-02-06 09:00:47,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 504 transitions, 1068 flow [2025-02-06 09:00:47,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:00:47,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 09:00:47,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1115 transitions. [2025-02-06 09:00:47,941 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9291666666666667 [2025-02-06 09:00:47,941 INFO L175 Difference]: Start difference. First operand has 577 places, 600 transitions, 1228 flow. Second operand 2 states and 1115 transitions. [2025-02-06 09:00:47,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 504 transitions, 1068 flow [2025-02-06 09:00:47,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 504 transitions, 1062 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-02-06 09:00:47,947 INFO L231 Difference]: Finished difference. Result has 498 places, 504 transitions, 1030 flow [2025-02-06 09:00:47,947 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1030, PETRI_PLACES=498, PETRI_TRANSITIONS=504} [2025-02-06 09:00:47,948 INFO L279 CegarLoopForPetriNet]: 577 programPoint places, -79 predicate places. [2025-02-06 09:00:47,948 INFO L471 AbstractCegarLoop]: Abstraction has has 498 places, 504 transitions, 1030 flow [2025-02-06 09:00:47,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 520.0) internal successors, (1040), 2 states have internal predecessors, (1040), 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) [2025-02-06 09:00:47,949 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:47,949 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, 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] [2025-02-06 09:00:47,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 09:00:47,949 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2025-02-06 09:00:47,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:47,950 INFO L85 PathProgramCache]: Analyzing trace with hash 583513179, now seen corresponding path program 1 times [2025-02-06 09:00:47,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:47,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746244381] [2025-02-06 09:00:47,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:47,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:48,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-02-06 09:00:48,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-02-06 09:00:48,014 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:48,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:00:48,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:00:48,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:00:48,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746244381] [2025-02-06 09:00:48,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746244381] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:00:48,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:00:48,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:00:48,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365670499] [2025-02-06 09:00:48,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:00:48,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:00:48,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:00:48,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:00:48,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:00:49,463 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 490 out of 600 [2025-02-06 09:00:49,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 504 transitions, 1030 flow. Second operand has 6 states, 6 states have (on average 491.5) internal successors, (2949), 6 states have internal predecessors, (2949), 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) [2025-02-06 09:00:49,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:00:49,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 490 of 600 [2025-02-06 09:00:49,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:00:58,804 INFO L124 PetriNetUnfolderBase]: 8295/51307 cut-off events. [2025-02-06 09:00:58,805 INFO L125 PetriNetUnfolderBase]: For 3013/3013 co-relation queries the response was YES. [2025-02-06 09:00:59,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62981 conditions, 51307 events. 8295/51307 cut-off events. For 3013/3013 co-relation queries the response was YES. Maximal size of possible extension queue 765. Compared 712603 event pairs, 1556 based on Foata normal form. 0/42683 useless extension candidates. Maximal degree in co-relation 62974. Up to 7809 conditions per place. [2025-02-06 09:00:59,701 INFO L140 encePairwiseOnDemand]: 565/600 looper letters, 64 selfloop transitions, 58 changer transitions 0/582 dead transitions. [2025-02-06 09:00:59,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 582 transitions, 1490 flow [2025-02-06 09:00:59,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:00:59,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:00:59,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3066 transitions. [2025-02-06 09:00:59,707 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8516666666666667 [2025-02-06 09:00:59,707 INFO L175 Difference]: Start difference. First operand has 498 places, 504 transitions, 1030 flow. Second operand 6 states and 3066 transitions. [2025-02-06 09:00:59,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 582 transitions, 1490 flow [2025-02-06 09:00:59,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 503 places, 582 transitions, 1490 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:00:59,718 INFO L231 Difference]: Finished difference. Result has 508 places, 561 transitions, 1444 flow [2025-02-06 09:00:59,719 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1444, PETRI_PLACES=508, PETRI_TRANSITIONS=561} [2025-02-06 09:00:59,719 INFO L279 CegarLoopForPetriNet]: 577 programPoint places, -69 predicate places. [2025-02-06 09:00:59,719 INFO L471 AbstractCegarLoop]: Abstraction has has 508 places, 561 transitions, 1444 flow [2025-02-06 09:00:59,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 491.5) internal successors, (2949), 6 states have internal predecessors, (2949), 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) [2025-02-06 09:00:59,721 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:00:59,721 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, 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] [2025-02-06 09:00:59,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 09:00:59,721 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2025-02-06 09:00:59,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:00:59,722 INFO L85 PathProgramCache]: Analyzing trace with hash 901502778, now seen corresponding path program 1 times [2025-02-06 09:00:59,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:00:59,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738590966] [2025-02-06 09:00:59,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:00:59,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:00:59,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-06 09:00:59,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-06 09:00:59,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:00:59,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:01:00,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:01:00,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:01:00,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738590966] [2025-02-06 09:01:00,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738590966] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:01:00,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:01:00,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:01:00,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89316205] [2025-02-06 09:01:00,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:01:00,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:01:00,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:01:00,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:01:00,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:01:01,299 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 490 out of 600 [2025-02-06 09:01:01,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 561 transitions, 1444 flow. Second operand has 6 states, 6 states have (on average 491.6666666666667) internal successors, (2950), 6 states have internal predecessors, (2950), 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) [2025-02-06 09:01:01,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:01:01,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 490 of 600 [2025-02-06 09:01:01,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand