./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:06:38,667 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:06:38,738 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:06:38,759 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:06:38,760 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:06:38,798 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:06:38,799 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:06:38,799 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:06:38,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:06:38,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:06:38,802 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:06:38,803 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:06:38,803 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:06:38,805 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:06:38,805 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:06:38,805 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:06:38,805 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:06:38,806 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:06:38,806 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:06:38,806 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:06:38,806 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:06:38,809 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:06:38,810 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:06:38,810 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:06:38,810 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:06:38,810 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:06:38,810 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:06:38,811 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:06:38,811 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:06:38,811 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:06:38,811 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:06:38,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:06:38,812 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:06:38,812 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:06:38,812 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:06:38,812 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:06:38,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:06:38,813 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:06:38,814 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:06:38,815 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:06:38,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:06:38,815 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 [2024-10-11 17:06:39,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:06:39,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:06:39,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:06:39,107 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:06:39,107 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:06:39,108 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2024-10-11 17:06:40,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:06:40,824 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:06:40,828 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2024-10-11 17:06:40,850 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/713822d77/c4580a851d6145a2845a25c858098804/FLAGfabecafa1 [2024-10-11 17:06:40,871 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/713822d77/c4580a851d6145a2845a25c858098804 [2024-10-11 17:06:40,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:06:40,877 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:06:40,880 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:06:40,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:06:40,888 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:06:40,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:06:40" (1/1) ... [2024-10-11 17:06:40,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f63ee44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:40, skipping insertion in model container [2024-10-11 17:06:40,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:06:40" (1/1) ... [2024-10-11 17:06:40,935 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:06:41,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:06:41,446 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:06:41,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:06:41,579 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:06:41,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:41 WrapperNode [2024-10-11 17:06:41,580 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:06:41,581 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:06:41,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:06:41,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:06:41,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:41" (1/1) ... [2024-10-11 17:06:41,615 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:41" (1/1) ... [2024-10-11 17:06:41,641 INFO L138 Inliner]: procedures = 266, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2024-10-11 17:06:41,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:06:41,642 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:06:41,642 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:06:41,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:06:41,651 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:41" (1/1) ... [2024-10-11 17:06:41,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:41" (1/1) ... [2024-10-11 17:06:41,656 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:41" (1/1) ... [2024-10-11 17:06:41,658 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:41" (1/1) ... [2024-10-11 17:06:41,667 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:41" (1/1) ... [2024-10-11 17:06:41,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:41" (1/1) ... [2024-10-11 17:06:41,672 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:41" (1/1) ... [2024-10-11 17:06:41,673 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:41" (1/1) ... [2024-10-11 17:06:41,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:06:41,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:06:41,677 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:06:41,677 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:06:41,677 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:41" (1/1) ... [2024-10-11 17:06:41,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:06:41,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:06:41,719 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:06:41,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:06:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:06:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:06:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:06:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:06:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 17:06:41,782 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 17:06:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:06:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:06:41,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:06:41,785 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:06:41,918 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:06:41,921 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:06:42,098 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:06:42,098 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:06:42,128 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:06:42,129 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 17:06:42,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:06:42 BoogieIcfgContainer [2024-10-11 17:06:42,130 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:06:42,132 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:06:42,132 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:06:42,135 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:06:42,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:06:40" (1/3) ... [2024-10-11 17:06:42,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eadc703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:06:42, skipping insertion in model container [2024-10-11 17:06:42,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:41" (2/3) ... [2024-10-11 17:06:42,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eadc703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:06:42, skipping insertion in model container [2024-10-11 17:06:42,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:06:42" (3/3) ... [2024-10-11 17:06:42,139 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2024-10-11 17:06:42,156 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:06:42,156 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 17:06:42,156 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:06:42,203 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 17:06:42,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 81 transitions, 166 flow [2024-10-11 17:06:42,312 INFO L124 PetriNetUnfolderBase]: 1/80 cut-off events. [2024-10-11 17:06:42,312 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:06:42,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 1/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-10-11 17:06:42,317 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 81 transitions, 166 flow [2024-10-11 17:06:42,320 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 80 transitions, 163 flow [2024-10-11 17:06:42,329 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:06:42,336 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;@4e4e6f80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:06:42,336 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-11 17:06:42,353 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:06:42,353 INFO L124 PetriNetUnfolderBase]: 1/58 cut-off events. [2024-10-11 17:06:42,353 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:06:42,353 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:42,354 INFO L204 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] [2024-10-11 17:06:42,355 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:06:42,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:42,360 INFO L85 PathProgramCache]: Analyzing trace with hash 986417451, now seen corresponding path program 1 times [2024-10-11 17:06:42,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:42,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710228611] [2024-10-11 17:06:42,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:42,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:43,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:43,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:43,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710228611] [2024-10-11 17:06:43,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710228611] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:43,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:43,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:06:43,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796570986] [2024-10-11 17:06:43,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:43,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:06:43,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:43,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:06:43,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:06:43,521 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 81 [2024-10-11 17:06:43,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 80 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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) [2024-10-11 17:06:43,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:43,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 81 [2024-10-11 17:06:43,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:43,749 INFO L124 PetriNetUnfolderBase]: 79/347 cut-off events. [2024-10-11 17:06:43,751 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:06:43,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 347 events. 79/347 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1519 event pairs, 25 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 484. Up to 130 conditions per place. [2024-10-11 17:06:43,758 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 21 selfloop transitions, 22 changer transitions 4/109 dead transitions. [2024-10-11 17:06:43,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 109 transitions, 315 flow [2024-10-11 17:06:43,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:06:43,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:06:43,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 426 transitions. [2024-10-11 17:06:43,776 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8765432098765432 [2024-10-11 17:06:43,779 INFO L175 Difference]: Start difference. First operand has 83 places, 80 transitions, 163 flow. Second operand 6 states and 426 transitions. [2024-10-11 17:06:43,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 109 transitions, 315 flow [2024-10-11 17:06:43,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 109 transitions, 314 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:06:43,790 INFO L231 Difference]: Finished difference. Result has 92 places, 101 transitions, 312 flow [2024-10-11 17:06:43,792 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=92, PETRI_TRANSITIONS=101} [2024-10-11 17:06:43,798 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 9 predicate places. [2024-10-11 17:06:43,798 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 101 transitions, 312 flow [2024-10-11 17:06:43,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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) [2024-10-11 17:06:43,799 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:43,799 INFO L204 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] [2024-10-11 17:06:43,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:06:43,800 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:06:43,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:43,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1846228120, now seen corresponding path program 1 times [2024-10-11 17:06:43,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:43,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966272600] [2024-10-11 17:06:43,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:43,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:44,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:44,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:44,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966272600] [2024-10-11 17:06:44,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966272600] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:44,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:44,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:06:44,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431211694] [2024-10-11 17:06:44,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:44,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:06:44,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:44,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:06:44,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:06:44,235 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 81 [2024-10-11 17:06:44,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 101 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 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) [2024-10-11 17:06:44,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:44,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 81 [2024-10-11 17:06:44,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:44,427 INFO L124 PetriNetUnfolderBase]: 144/520 cut-off events. [2024-10-11 17:06:44,427 INFO L125 PetriNetUnfolderBase]: For 144/146 co-relation queries the response was YES. [2024-10-11 17:06:44,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 520 events. 144/520 cut-off events. For 144/146 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2603 event pairs, 43 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 1108. Up to 241 conditions per place. [2024-10-11 17:06:44,435 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 38 selfloop transitions, 29 changer transitions 7/136 dead transitions. [2024-10-11 17:06:44,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 136 transitions, 600 flow [2024-10-11 17:06:44,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:06:44,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:06:44,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 416 transitions. [2024-10-11 17:06:44,438 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8559670781893004 [2024-10-11 17:06:44,438 INFO L175 Difference]: Start difference. First operand has 92 places, 101 transitions, 312 flow. Second operand 6 states and 416 transitions. [2024-10-11 17:06:44,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 136 transitions, 600 flow [2024-10-11 17:06:44,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 136 transitions, 600 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:06:44,451 INFO L231 Difference]: Finished difference. Result has 102 places, 125 transitions, 566 flow [2024-10-11 17:06:44,452 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=566, PETRI_PLACES=102, PETRI_TRANSITIONS=125} [2024-10-11 17:06:44,453 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 19 predicate places. [2024-10-11 17:06:44,453 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 125 transitions, 566 flow [2024-10-11 17:06:44,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 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) [2024-10-11 17:06:44,454 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:44,454 INFO L204 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] [2024-10-11 17:06:44,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:06:44,455 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:06:44,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:44,457 INFO L85 PathProgramCache]: Analyzing trace with hash 878789003, now seen corresponding path program 1 times [2024-10-11 17:06:44,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:44,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437765928] [2024-10-11 17:06:44,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:44,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:44,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:44,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:44,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437765928] [2024-10-11 17:06:44,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437765928] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:44,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:44,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 17:06:44,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877356647] [2024-10-11 17:06:44,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:44,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 17:06:44,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:44,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 17:06:44,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-11 17:06:45,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 81 [2024-10-11 17:06:45,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 125 transitions, 566 flow. Second operand has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 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) [2024-10-11 17:06:45,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:45,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 81 [2024-10-11 17:06:45,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:45,161 INFO L124 PetriNetUnfolderBase]: 88/454 cut-off events. [2024-10-11 17:06:45,161 INFO L125 PetriNetUnfolderBase]: For 188/192 co-relation queries the response was YES. [2024-10-11 17:06:45,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1083 conditions, 454 events. 88/454 cut-off events. For 188/192 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2341 event pairs, 7 based on Foata normal form. 2/454 useless extension candidates. Maximal degree in co-relation 862. Up to 83 conditions per place. [2024-10-11 17:06:45,164 INFO L140 encePairwiseOnDemand]: 73/81 looper letters, 11 selfloop transitions, 4 changer transitions 13/137 dead transitions. [2024-10-11 17:06:45,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 137 transitions, 646 flow [2024-10-11 17:06:45,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 17:06:45,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 17:06:45,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 491 transitions. [2024-10-11 17:06:45,166 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8659611992945326 [2024-10-11 17:06:45,166 INFO L175 Difference]: Start difference. First operand has 102 places, 125 transitions, 566 flow. Second operand 7 states and 491 transitions. [2024-10-11 17:06:45,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 137 transitions, 646 flow [2024-10-11 17:06:45,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 137 transitions, 628 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-11 17:06:45,175 INFO L231 Difference]: Finished difference. Result has 111 places, 123 transitions, 562 flow [2024-10-11 17:06:45,175 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=562, PETRI_PLACES=111, PETRI_TRANSITIONS=123} [2024-10-11 17:06:45,176 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 28 predicate places. [2024-10-11 17:06:45,177 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 123 transitions, 562 flow [2024-10-11 17:06:45,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 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) [2024-10-11 17:06:45,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:45,178 INFO L204 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] [2024-10-11 17:06:45,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:06:45,178 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:06:45,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:45,179 INFO L85 PathProgramCache]: Analyzing trace with hash -752278149, now seen corresponding path program 1 times [2024-10-11 17:06:45,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:45,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999952897] [2024-10-11 17:06:45,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:45,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:45,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:45,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:45,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999952897] [2024-10-11 17:06:45,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999952897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:45,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:45,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:06:45,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755107854] [2024-10-11 17:06:45,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:45,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:06:45,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:45,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:06:45,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:06:46,290 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-10-11 17:06:46,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 123 transitions, 562 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:46,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:46,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-10-11 17:06:46,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:46,853 INFO L124 PetriNetUnfolderBase]: 241/702 cut-off events. [2024-10-11 17:06:46,853 INFO L125 PetriNetUnfolderBase]: For 686/692 co-relation queries the response was YES. [2024-10-11 17:06:46,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2193 conditions, 702 events. 241/702 cut-off events. For 686/692 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3587 event pairs, 24 based on Foata normal form. 15/715 useless extension candidates. Maximal degree in co-relation 2136. Up to 144 conditions per place. [2024-10-11 17:06:46,859 INFO L140 encePairwiseOnDemand]: 65/81 looper letters, 105 selfloop transitions, 41 changer transitions 34/230 dead transitions. [2024-10-11 17:06:46,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 230 transitions, 1560 flow [2024-10-11 17:06:46,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 17:06:46,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 17:06:46,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 846 transitions. [2024-10-11 17:06:46,863 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6962962962962963 [2024-10-11 17:06:46,863 INFO L175 Difference]: Start difference. First operand has 111 places, 123 transitions, 562 flow. Second operand 15 states and 846 transitions. [2024-10-11 17:06:46,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 230 transitions, 1560 flow [2024-10-11 17:06:46,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 230 transitions, 1532 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-10-11 17:06:46,875 INFO L231 Difference]: Finished difference. Result has 127 places, 146 transitions, 908 flow [2024-10-11 17:06:46,875 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=908, PETRI_PLACES=127, PETRI_TRANSITIONS=146} [2024-10-11 17:06:46,876 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 44 predicate places. [2024-10-11 17:06:46,876 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 146 transitions, 908 flow [2024-10-11 17:06:46,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:46,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:46,877 INFO L204 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] [2024-10-11 17:06:46,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:06:46,878 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:06:46,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:46,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1100070851, now seen corresponding path program 2 times [2024-10-11 17:06:46,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:46,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381130420] [2024-10-11 17:06:46,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:46,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:47,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:47,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:47,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381130420] [2024-10-11 17:06:47,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381130420] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:47,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:47,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:06:47,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681288185] [2024-10-11 17:06:47,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:47,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:06:47,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:47,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:06:47,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:06:47,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-10-11 17:06:47,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 146 transitions, 908 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:47,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:47,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-10-11 17:06:47,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:48,480 INFO L124 PetriNetUnfolderBase]: 206/641 cut-off events. [2024-10-11 17:06:48,481 INFO L125 PetriNetUnfolderBase]: For 1660/1672 co-relation queries the response was YES. [2024-10-11 17:06:48,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2506 conditions, 641 events. 206/641 cut-off events. For 1660/1672 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3363 event pairs, 38 based on Foata normal form. 17/656 useless extension candidates. Maximal degree in co-relation 2429. Up to 290 conditions per place. [2024-10-11 17:06:48,487 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 75 selfloop transitions, 39 changer transitions 32/196 dead transitions. [2024-10-11 17:06:48,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 196 transitions, 1494 flow [2024-10-11 17:06:48,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 17:06:48,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 17:06:48,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 752 transitions. [2024-10-11 17:06:48,489 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7141500474833808 [2024-10-11 17:06:48,489 INFO L175 Difference]: Start difference. First operand has 127 places, 146 transitions, 908 flow. Second operand 13 states and 752 transitions. [2024-10-11 17:06:48,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 196 transitions, 1494 flow [2024-10-11 17:06:48,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 196 transitions, 1416 flow, removed 6 selfloop flow, removed 10 redundant places. [2024-10-11 17:06:48,506 INFO L231 Difference]: Finished difference. Result has 130 places, 146 transitions, 977 flow [2024-10-11 17:06:48,506 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=977, PETRI_PLACES=130, PETRI_TRANSITIONS=146} [2024-10-11 17:06:48,507 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 47 predicate places. [2024-10-11 17:06:48,508 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 146 transitions, 977 flow [2024-10-11 17:06:48,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:48,509 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:48,509 INFO L204 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] [2024-10-11 17:06:48,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 17:06:48,510 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:06:48,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:48,510 INFO L85 PathProgramCache]: Analyzing trace with hash -765698169, now seen corresponding path program 3 times [2024-10-11 17:06:48,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:48,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858440381] [2024-10-11 17:06:48,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:48,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:48,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:48,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:48,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858440381] [2024-10-11 17:06:48,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858440381] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:48,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:48,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:06:48,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265965425] [2024-10-11 17:06:48,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:48,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:06:48,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:48,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:06:48,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:06:49,630 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-10-11 17:06:49,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 146 transitions, 977 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:49,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:49,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-10-11 17:06:49,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:50,232 INFO L124 PetriNetUnfolderBase]: 289/838 cut-off events. [2024-10-11 17:06:50,232 INFO L125 PetriNetUnfolderBase]: For 3142/3158 co-relation queries the response was YES. [2024-10-11 17:06:50,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3563 conditions, 838 events. 289/838 cut-off events. For 3142/3158 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4758 event pairs, 32 based on Foata normal form. 20/855 useless extension candidates. Maximal degree in co-relation 3485. Up to 280 conditions per place. [2024-10-11 17:06:50,240 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 132 selfloop transitions, 62 changer transitions 15/259 dead transitions. [2024-10-11 17:06:50,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 259 transitions, 2389 flow [2024-10-11 17:06:50,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 17:06:50,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 17:06:50,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 847 transitions. [2024-10-11 17:06:50,242 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.697119341563786 [2024-10-11 17:06:50,242 INFO L175 Difference]: Start difference. First operand has 130 places, 146 transitions, 977 flow. Second operand 15 states and 847 transitions. [2024-10-11 17:06:50,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 259 transitions, 2389 flow [2024-10-11 17:06:50,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 259 transitions, 2271 flow, removed 9 selfloop flow, removed 10 redundant places. [2024-10-11 17:06:50,263 INFO L231 Difference]: Finished difference. Result has 140 places, 184 transitions, 1566 flow [2024-10-11 17:06:50,265 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1566, PETRI_PLACES=140, PETRI_TRANSITIONS=184} [2024-10-11 17:06:50,266 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 57 predicate places. [2024-10-11 17:06:50,267 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 184 transitions, 1566 flow [2024-10-11 17:06:50,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:50,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:50,268 INFO L204 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] [2024-10-11 17:06:50,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 17:06:50,269 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:06:50,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:50,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1837082241, now seen corresponding path program 4 times [2024-10-11 17:06:50,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:50,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467843394] [2024-10-11 17:06:50,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:50,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:50,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:50,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:50,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467843394] [2024-10-11 17:06:50,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467843394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:50,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:50,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:06:50,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793330177] [2024-10-11 17:06:50,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:50,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:06:50,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:50,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:06:50,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:06:51,183 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-10-11 17:06:51,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 184 transitions, 1566 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:51,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:51,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-10-11 17:06:51,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:51,848 INFO L124 PetriNetUnfolderBase]: 308/885 cut-off events. [2024-10-11 17:06:51,849 INFO L125 PetriNetUnfolderBase]: For 5242/5267 co-relation queries the response was YES. [2024-10-11 17:06:51,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4280 conditions, 885 events. 308/885 cut-off events. For 5242/5267 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5108 event pairs, 42 based on Foata normal form. 31/913 useless extension candidates. Maximal degree in co-relation 4195. Up to 429 conditions per place. [2024-10-11 17:06:51,858 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 111 selfloop transitions, 64 changer transitions 29/254 dead transitions. [2024-10-11 17:06:51,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 254 transitions, 2527 flow [2024-10-11 17:06:51,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 17:06:51,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 17:06:51,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 858 transitions. [2024-10-11 17:06:51,861 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7061728395061728 [2024-10-11 17:06:51,861 INFO L175 Difference]: Start difference. First operand has 140 places, 184 transitions, 1566 flow. Second operand 15 states and 858 transitions. [2024-10-11 17:06:51,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 254 transitions, 2527 flow [2024-10-11 17:06:51,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 254 transitions, 2423 flow, removed 31 selfloop flow, removed 8 redundant places. [2024-10-11 17:06:51,888 INFO L231 Difference]: Finished difference. Result has 152 places, 197 transitions, 1888 flow [2024-10-11 17:06:51,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1492, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1888, PETRI_PLACES=152, PETRI_TRANSITIONS=197} [2024-10-11 17:06:51,889 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 69 predicate places. [2024-10-11 17:06:51,889 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 197 transitions, 1888 flow [2024-10-11 17:06:51,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:51,890 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:51,890 INFO L204 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] [2024-10-11 17:06:51,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:06:51,890 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:06:51,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:51,891 INFO L85 PathProgramCache]: Analyzing trace with hash -137656509, now seen corresponding path program 1 times [2024-10-11 17:06:51,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:51,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822653888] [2024-10-11 17:06:51,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:51,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:52,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:52,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:52,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822653888] [2024-10-11 17:06:52,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822653888] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:52,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:52,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:06:52,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777732439] [2024-10-11 17:06:52,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:52,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:06:52,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:52,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:06:52,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:06:52,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-10-11 17:06:52,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 197 transitions, 1888 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:52,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:52,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-10-11 17:06:52,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:53,349 INFO L124 PetriNetUnfolderBase]: 282/807 cut-off events. [2024-10-11 17:06:53,349 INFO L125 PetriNetUnfolderBase]: For 5541/5565 co-relation queries the response was YES. [2024-10-11 17:06:53,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4291 conditions, 807 events. 282/807 cut-off events. For 5541/5565 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4539 event pairs, 29 based on Foata normal form. 24/827 useless extension candidates. Maximal degree in co-relation 4201. Up to 179 conditions per place. [2024-10-11 17:06:53,357 INFO L140 encePairwiseOnDemand]: 66/81 looper letters, 132 selfloop transitions, 61 changer transitions 14/262 dead transitions. [2024-10-11 17:06:53,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 262 transitions, 2998 flow [2024-10-11 17:06:53,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 17:06:53,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 17:06:53,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 669 transitions. [2024-10-11 17:06:53,360 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6882716049382716 [2024-10-11 17:06:53,361 INFO L175 Difference]: Start difference. First operand has 152 places, 197 transitions, 1888 flow. Second operand 12 states and 669 transitions. [2024-10-11 17:06:53,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 262 transitions, 2998 flow [2024-10-11 17:06:53,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 262 transitions, 2880 flow, removed 17 selfloop flow, removed 8 redundant places. [2024-10-11 17:06:53,393 INFO L231 Difference]: Finished difference. Result has 152 places, 191 transitions, 1884 flow [2024-10-11 17:06:53,394 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1790, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1884, PETRI_PLACES=152, PETRI_TRANSITIONS=191} [2024-10-11 17:06:53,396 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 69 predicate places. [2024-10-11 17:06:53,396 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 191 transitions, 1884 flow [2024-10-11 17:06:53,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:53,397 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:53,397 INFO L204 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] [2024-10-11 17:06:53,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:06:53,398 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:06:53,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:53,399 INFO L85 PathProgramCache]: Analyzing trace with hash -181087335, now seen corresponding path program 5 times [2024-10-11 17:06:53,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:53,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112402673] [2024-10-11 17:06:53,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:53,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:53,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:53,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:53,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112402673] [2024-10-11 17:06:53,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112402673] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:53,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:53,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:06:53,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167710691] [2024-10-11 17:06:53,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:53,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:06:53,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:53,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:06:53,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:06:54,277 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-10-11 17:06:54,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 191 transitions, 1884 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:54,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:54,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-10-11 17:06:54,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:54,831 INFO L124 PetriNetUnfolderBase]: 286/802 cut-off events. [2024-10-11 17:06:54,831 INFO L125 PetriNetUnfolderBase]: For 6379/6416 co-relation queries the response was YES. [2024-10-11 17:06:54,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4588 conditions, 802 events. 286/802 cut-off events. For 6379/6416 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4369 event pairs, 35 based on Foata normal form. 30/829 useless extension candidates. Maximal degree in co-relation 4498. Up to 426 conditions per place. [2024-10-11 17:06:54,839 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 93 selfloop transitions, 43 changer transitions 51/233 dead transitions. [2024-10-11 17:06:54,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 233 transitions, 2673 flow [2024-10-11 17:06:54,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 17:06:54,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-11 17:06:54,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 790 transitions. [2024-10-11 17:06:54,842 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6966490299823633 [2024-10-11 17:06:54,842 INFO L175 Difference]: Start difference. First operand has 152 places, 191 transitions, 1884 flow. Second operand 14 states and 790 transitions. [2024-10-11 17:06:54,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 233 transitions, 2673 flow [2024-10-11 17:06:54,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 233 transitions, 2497 flow, removed 4 selfloop flow, removed 12 redundant places. [2024-10-11 17:06:54,876 INFO L231 Difference]: Finished difference. Result has 156 places, 166 transitions, 1549 flow [2024-10-11 17:06:54,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1758, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1549, PETRI_PLACES=156, PETRI_TRANSITIONS=166} [2024-10-11 17:06:54,877 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 73 predicate places. [2024-10-11 17:06:54,878 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 166 transitions, 1549 flow [2024-10-11 17:06:54,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:54,878 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:54,878 INFO L204 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] [2024-10-11 17:06:54,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:06:54,879 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:06:54,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:54,879 INFO L85 PathProgramCache]: Analyzing trace with hash -972754177, now seen corresponding path program 6 times [2024-10-11 17:06:54,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:54,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873612867] [2024-10-11 17:06:54,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:54,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:55,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:55,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:55,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873612867] [2024-10-11 17:06:55,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873612867] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:55,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:55,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:06:55,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81139874] [2024-10-11 17:06:55,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:55,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:06:55,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:55,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:06:55,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:06:55,630 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-10-11 17:06:55,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 166 transitions, 1549 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:55,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:55,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-10-11 17:06:55,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:56,168 INFO L124 PetriNetUnfolderBase]: 217/694 cut-off events. [2024-10-11 17:06:56,168 INFO L125 PetriNetUnfolderBase]: For 7022/7049 co-relation queries the response was YES. [2024-10-11 17:06:56,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3771 conditions, 694 events. 217/694 cut-off events. For 7022/7049 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3772 event pairs, 34 based on Foata normal form. 19/710 useless extension candidates. Maximal degree in co-relation 3675. Up to 351 conditions per place. [2024-10-11 17:06:56,177 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 100 selfloop transitions, 44 changer transitions 20/210 dead transitions. [2024-10-11 17:06:56,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 210 transitions, 2366 flow [2024-10-11 17:06:56,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 17:06:56,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-11 17:06:56,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 785 transitions. [2024-10-11 17:06:56,180 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6922398589065256 [2024-10-11 17:06:56,180 INFO L175 Difference]: Start difference. First operand has 156 places, 166 transitions, 1549 flow. Second operand 14 states and 785 transitions. [2024-10-11 17:06:56,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 210 transitions, 2366 flow [2024-10-11 17:06:56,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 210 transitions, 2053 flow, removed 50 selfloop flow, removed 17 redundant places. [2024-10-11 17:06:56,215 INFO L231 Difference]: Finished difference. Result has 156 places, 173 transitions, 1579 flow [2024-10-11 17:06:56,217 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1326, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1579, PETRI_PLACES=156, PETRI_TRANSITIONS=173} [2024-10-11 17:06:56,217 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 73 predicate places. [2024-10-11 17:06:56,217 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 173 transitions, 1579 flow [2024-10-11 17:06:56,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:56,219 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:56,219 INFO L204 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] [2024-10-11 17:06:56,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 17:06:56,219 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:06:56,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:56,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1849243779, now seen corresponding path program 7 times [2024-10-11 17:06:56,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:56,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864709225] [2024-10-11 17:06:56,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:56,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:56,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:56,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:56,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864709225] [2024-10-11 17:06:56,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864709225] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:56,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:56,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:06:56,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450402282] [2024-10-11 17:06:56,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:56,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:06:56,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:56,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:06:56,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:06:56,984 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-10-11 17:06:56,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 173 transitions, 1579 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:56,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:56,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-10-11 17:06:56,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:57,508 INFO L124 PetriNetUnfolderBase]: 249/765 cut-off events. [2024-10-11 17:06:57,509 INFO L125 PetriNetUnfolderBase]: For 6569/6609 co-relation queries the response was YES. [2024-10-11 17:06:57,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3969 conditions, 765 events. 249/765 cut-off events. For 6569/6609 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4247 event pairs, 42 based on Foata normal form. 30/792 useless extension candidates. Maximal degree in co-relation 3875. Up to 275 conditions per place. [2024-10-11 17:06:57,518 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 141 selfloop transitions, 61 changer transitions 16/264 dead transitions. [2024-10-11 17:06:57,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 264 transitions, 2958 flow [2024-10-11 17:06:57,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 17:06:57,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 17:06:57,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 841 transitions. [2024-10-11 17:06:57,520 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6921810699588478 [2024-10-11 17:06:57,520 INFO L175 Difference]: Start difference. First operand has 156 places, 173 transitions, 1579 flow. Second operand 15 states and 841 transitions. [2024-10-11 17:06:57,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 264 transitions, 2958 flow [2024-10-11 17:06:57,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 264 transitions, 2897 flow, removed 18 selfloop flow, removed 8 redundant places. [2024-10-11 17:06:57,553 INFO L231 Difference]: Finished difference. Result has 168 places, 193 transitions, 2028 flow [2024-10-11 17:06:57,554 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1549, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2028, PETRI_PLACES=168, PETRI_TRANSITIONS=193} [2024-10-11 17:06:57,554 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 85 predicate places. [2024-10-11 17:06:57,555 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 193 transitions, 2028 flow [2024-10-11 17:06:57,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:57,555 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:57,555 INFO L204 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] [2024-10-11 17:06:57,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 17:06:57,556 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:06:57,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:57,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1388040677, now seen corresponding path program 8 times [2024-10-11 17:06:57,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:57,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082934797] [2024-10-11 17:06:57,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:57,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:57,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:57,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:57,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082934797] [2024-10-11 17:06:57,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082934797] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:57,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:57,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:06:57,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967042624] [2024-10-11 17:06:57,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:57,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:06:57,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:57,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:06:57,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:06:58,394 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-10-11 17:06:58,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 193 transitions, 2028 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:58,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:58,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-10-11 17:06:58,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:58,835 INFO L124 PetriNetUnfolderBase]: 251/754 cut-off events. [2024-10-11 17:06:58,835 INFO L125 PetriNetUnfolderBase]: For 9120/9160 co-relation queries the response was YES. [2024-10-11 17:06:58,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4381 conditions, 754 events. 251/754 cut-off events. For 9120/9160 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4141 event pairs, 22 based on Foata normal form. 36/789 useless extension candidates. Maximal degree in co-relation 4281. Up to 329 conditions per place. [2024-10-11 17:06:58,844 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 142 selfloop transitions, 57 changer transitions 20/265 dead transitions. [2024-10-11 17:06:58,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 265 transitions, 3322 flow [2024-10-11 17:06:58,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 17:06:58,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 17:06:58,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 838 transitions. [2024-10-11 17:06:58,852 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6897119341563785 [2024-10-11 17:06:58,853 INFO L175 Difference]: Start difference. First operand has 168 places, 193 transitions, 2028 flow. Second operand 15 states and 838 transitions. [2024-10-11 17:06:58,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 265 transitions, 3322 flow [2024-10-11 17:06:58,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 265 transitions, 3119 flow, removed 65 selfloop flow, removed 10 redundant places. [2024-10-11 17:06:58,898 INFO L231 Difference]: Finished difference. Result has 177 places, 206 transitions, 2257 flow [2024-10-11 17:06:58,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1863, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2257, PETRI_PLACES=177, PETRI_TRANSITIONS=206} [2024-10-11 17:06:58,900 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 94 predicate places. [2024-10-11 17:06:58,900 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 206 transitions, 2257 flow [2024-10-11 17:06:58,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:58,900 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:58,901 INFO L204 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] [2024-10-11 17:06:58,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 17:06:58,901 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:06:58,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:58,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1674150571, now seen corresponding path program 9 times [2024-10-11 17:06:58,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:58,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957171232] [2024-10-11 17:06:58,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:58,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:59,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:59,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:59,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957171232] [2024-10-11 17:06:59,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957171232] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:59,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:59,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:06:59,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926236357] [2024-10-11 17:06:59,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:59,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:06:59,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:59,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:06:59,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:06:59,725 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-10-11 17:06:59,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 206 transitions, 2257 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:06:59,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:59,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-10-11 17:06:59,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:00,182 INFO L124 PetriNetUnfolderBase]: 228/716 cut-off events. [2024-10-11 17:07:00,182 INFO L125 PetriNetUnfolderBase]: For 8916/8959 co-relation queries the response was YES. [2024-10-11 17:07:00,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4166 conditions, 716 events. 228/716 cut-off events. For 8916/8959 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3913 event pairs, 19 based on Foata normal form. 41/756 useless extension candidates. Maximal degree in co-relation 4062. Up to 360 conditions per place. [2024-10-11 17:07:00,190 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 123 selfloop transitions, 50 changer transitions 32/251 dead transitions. [2024-10-11 17:07:00,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 251 transitions, 3189 flow [2024-10-11 17:07:00,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 17:07:00,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 17:07:00,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 836 transitions. [2024-10-11 17:07:00,192 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6880658436213992 [2024-10-11 17:07:00,193 INFO L175 Difference]: Start difference. First operand has 177 places, 206 transitions, 2257 flow. Second operand 15 states and 836 transitions. [2024-10-11 17:07:00,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 251 transitions, 3189 flow [2024-10-11 17:07:00,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 251 transitions, 3024 flow, removed 55 selfloop flow, removed 11 redundant places. [2024-10-11 17:07:00,228 INFO L231 Difference]: Finished difference. Result has 184 places, 201 transitions, 2189 flow [2024-10-11 17:07:00,229 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2114, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2189, PETRI_PLACES=184, PETRI_TRANSITIONS=201} [2024-10-11 17:07:00,229 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 101 predicate places. [2024-10-11 17:07:00,229 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 201 transitions, 2189 flow [2024-10-11 17:07:00,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:07:00,230 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:00,230 INFO L204 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] [2024-10-11 17:07:00,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 17:07:00,230 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:07:00,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:00,231 INFO L85 PathProgramCache]: Analyzing trace with hash -246324857, now seen corresponding path program 10 times [2024-10-11 17:07:00,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:00,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820394357] [2024-10-11 17:07:00,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:00,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:00,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:00,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:00,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820394357] [2024-10-11 17:07:00,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820394357] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:00,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:00,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:07:00,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339838586] [2024-10-11 17:07:00,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:00,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:07:00,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:00,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:07:00,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:07:00,960 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-10-11 17:07:00,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 201 transitions, 2189 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:07:00,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:00,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-10-11 17:07:00,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:01,411 INFO L124 PetriNetUnfolderBase]: 250/796 cut-off events. [2024-10-11 17:07:01,412 INFO L125 PetriNetUnfolderBase]: For 12174/12212 co-relation queries the response was YES. [2024-10-11 17:07:01,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4630 conditions, 796 events. 250/796 cut-off events. For 12174/12212 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4568 event pairs, 34 based on Foata normal form. 38/832 useless extension candidates. Maximal degree in co-relation 4523. Up to 352 conditions per place. [2024-10-11 17:07:01,420 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 148 selfloop transitions, 64 changer transitions 13/271 dead transitions. [2024-10-11 17:07:01,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 271 transitions, 3509 flow [2024-10-11 17:07:01,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 17:07:01,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 17:07:01,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 840 transitions. [2024-10-11 17:07:01,423 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.691358024691358 [2024-10-11 17:07:01,423 INFO L175 Difference]: Start difference. First operand has 184 places, 201 transitions, 2189 flow. Second operand 15 states and 840 transitions. [2024-10-11 17:07:01,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 271 transitions, 3509 flow [2024-10-11 17:07:01,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 271 transitions, 3395 flow, removed 27 selfloop flow, removed 11 redundant places. [2024-10-11 17:07:01,459 INFO L231 Difference]: Finished difference. Result has 189 places, 219 transitions, 2605 flow [2024-10-11 17:07:01,459 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2115, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2605, PETRI_PLACES=189, PETRI_TRANSITIONS=219} [2024-10-11 17:07:01,460 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 106 predicate places. [2024-10-11 17:07:01,460 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 219 transitions, 2605 flow [2024-10-11 17:07:01,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:07:01,460 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:01,460 INFO L204 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] [2024-10-11 17:07:01,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 17:07:01,461 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:07:01,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:01,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1976196377, now seen corresponding path program 11 times [2024-10-11 17:07:01,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:01,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590870846] [2024-10-11 17:07:01,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:01,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:01,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:01,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:01,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590870846] [2024-10-11 17:07:01,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590870846] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:01,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:01,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:07:01,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602817261] [2024-10-11 17:07:01,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:01,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:07:01,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:01,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:07:01,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:07:02,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-10-11 17:07:02,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 219 transitions, 2605 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:07:02,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:02,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-10-11 17:07:02,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:02,531 INFO L124 PetriNetUnfolderBase]: 244/793 cut-off events. [2024-10-11 17:07:02,531 INFO L125 PetriNetUnfolderBase]: For 13142/13187 co-relation queries the response was YES. [2024-10-11 17:07:02,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4814 conditions, 793 events. 244/793 cut-off events. For 13142/13187 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4618 event pairs, 35 based on Foata normal form. 27/817 useless extension candidates. Maximal degree in co-relation 4704. Up to 444 conditions per place. [2024-10-11 17:07:02,541 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 134 selfloop transitions, 52 changer transitions 15/247 dead transitions. [2024-10-11 17:07:02,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 247 transitions, 3316 flow [2024-10-11 17:07:02,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 17:07:02,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-11 17:07:02,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 774 transitions. [2024-10-11 17:07:02,543 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6825396825396826 [2024-10-11 17:07:02,543 INFO L175 Difference]: Start difference. First operand has 189 places, 219 transitions, 2605 flow. Second operand 14 states and 774 transitions. [2024-10-11 17:07:02,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 247 transitions, 3316 flow [2024-10-11 17:07:02,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 247 transitions, 3150 flow, removed 64 selfloop flow, removed 9 redundant places. [2024-10-11 17:07:02,594 INFO L231 Difference]: Finished difference. Result has 197 places, 221 transitions, 2631 flow [2024-10-11 17:07:02,594 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2453, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2631, PETRI_PLACES=197, PETRI_TRANSITIONS=221} [2024-10-11 17:07:02,595 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 114 predicate places. [2024-10-11 17:07:02,595 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 221 transitions, 2631 flow [2024-10-11 17:07:02,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:07:02,595 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:02,595 INFO L204 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] [2024-10-11 17:07:02,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 17:07:02,596 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:07:02,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:02,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1675784521, now seen corresponding path program 12 times [2024-10-11 17:07:02,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:02,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616630855] [2024-10-11 17:07:02,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:02,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:02,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:02,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:02,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616630855] [2024-10-11 17:07:02,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616630855] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:02,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:02,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:07:02,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030141965] [2024-10-11 17:07:02,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:02,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:07:02,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:02,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:07:02,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:07:03,414 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-10-11 17:07:03,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 221 transitions, 2631 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:07:03,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:03,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-10-11 17:07:03,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:03,828 INFO L124 PetriNetUnfolderBase]: 235/780 cut-off events. [2024-10-11 17:07:03,828 INFO L125 PetriNetUnfolderBase]: For 12688/12722 co-relation queries the response was YES. [2024-10-11 17:07:03,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4637 conditions, 780 events. 235/780 cut-off events. For 12688/12722 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4518 event pairs, 34 based on Foata normal form. 31/808 useless extension candidates. Maximal degree in co-relation 4524. Up to 409 conditions per place. [2024-10-11 17:07:03,836 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 134 selfloop transitions, 55 changer transitions 29/264 dead transitions. [2024-10-11 17:07:03,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 264 transitions, 3582 flow [2024-10-11 17:07:03,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 17:07:03,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 17:07:03,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 835 transitions. [2024-10-11 17:07:03,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6872427983539094 [2024-10-11 17:07:03,839 INFO L175 Difference]: Start difference. First operand has 197 places, 221 transitions, 2631 flow. Second operand 15 states and 835 transitions. [2024-10-11 17:07:03,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 264 transitions, 3582 flow [2024-10-11 17:07:03,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 264 transitions, 3425 flow, removed 35 selfloop flow, removed 11 redundant places. [2024-10-11 17:07:03,885 INFO L231 Difference]: Finished difference. Result has 204 places, 218 transitions, 2608 flow [2024-10-11 17:07:03,886 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2498, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2608, PETRI_PLACES=204, PETRI_TRANSITIONS=218} [2024-10-11 17:07:03,886 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 121 predicate places. [2024-10-11 17:07:03,886 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 218 transitions, 2608 flow [2024-10-11 17:07:03,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:07:03,887 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:03,887 INFO L204 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] [2024-10-11 17:07:03,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 17:07:03,887 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:07:03,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:03,887 INFO L85 PathProgramCache]: Analyzing trace with hash 621319205, now seen corresponding path program 13 times [2024-10-11 17:07:03,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:03,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031410786] [2024-10-11 17:07:03,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:03,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:04,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:04,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:04,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031410786] [2024-10-11 17:07:04,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031410786] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:04,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:04,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:07:04,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726089975] [2024-10-11 17:07:04,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:04,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:07:04,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:04,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:07:04,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:07:04,813 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-10-11 17:07:04,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 218 transitions, 2608 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:07:04,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:04,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-10-11 17:07:04,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:05,233 INFO L124 PetriNetUnfolderBase]: 232/792 cut-off events. [2024-10-11 17:07:05,233 INFO L125 PetriNetUnfolderBase]: For 13627/13658 co-relation queries the response was YES. [2024-10-11 17:07:05,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4702 conditions, 792 events. 232/792 cut-off events. For 13627/13658 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4655 event pairs, 36 based on Foata normal form. 28/817 useless extension candidates. Maximal degree in co-relation 4588. Up to 417 conditions per place. [2024-10-11 17:07:05,242 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 138 selfloop transitions, 55 changer transitions 23/262 dead transitions. [2024-10-11 17:07:05,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 262 transitions, 3622 flow [2024-10-11 17:07:05,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 17:07:05,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 17:07:05,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 832 transitions. [2024-10-11 17:07:05,244 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6847736625514403 [2024-10-11 17:07:05,244 INFO L175 Difference]: Start difference. First operand has 204 places, 218 transitions, 2608 flow. Second operand 15 states and 832 transitions. [2024-10-11 17:07:05,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 262 transitions, 3622 flow [2024-10-11 17:07:05,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 262 transitions, 3531 flow, removed 25 selfloop flow, removed 10 redundant places. [2024-10-11 17:07:05,301 INFO L231 Difference]: Finished difference. Result has 210 places, 223 transitions, 2770 flow [2024-10-11 17:07:05,301 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2540, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2770, PETRI_PLACES=210, PETRI_TRANSITIONS=223} [2024-10-11 17:07:05,302 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 127 predicate places. [2024-10-11 17:07:05,302 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 223 transitions, 2770 flow [2024-10-11 17:07:05,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:07:05,302 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:05,303 INFO L204 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] [2024-10-11 17:07:05,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 17:07:05,303 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:07:05,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:05,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2081652893, now seen corresponding path program 14 times [2024-10-11 17:07:05,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:05,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287287357] [2024-10-11 17:07:05,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:05,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:05,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:05,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:05,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287287357] [2024-10-11 17:07:05,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287287357] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:05,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:05,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:07:05,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432709860] [2024-10-11 17:07:05,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:05,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:07:05,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:05,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:07:05,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:07:06,159 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-10-11 17:07:06,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 223 transitions, 2770 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:07:06,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:06,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-10-11 17:07:06,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:06,722 INFO L124 PetriNetUnfolderBase]: 221/753 cut-off events. [2024-10-11 17:07:06,722 INFO L125 PetriNetUnfolderBase]: For 13880/13907 co-relation queries the response was YES. [2024-10-11 17:07:06,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4570 conditions, 753 events. 221/753 cut-off events. For 13880/13907 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4342 event pairs, 34 based on Foata normal form. 27/769 useless extension candidates. Maximal degree in co-relation 4453. Up to 363 conditions per place. [2024-10-11 17:07:06,728 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 138 selfloop transitions, 61 changer transitions 26/271 dead transitions. [2024-10-11 17:07:06,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 271 transitions, 3866 flow [2024-10-11 17:07:06,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 17:07:06,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 17:07:06,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 834 transitions. [2024-10-11 17:07:06,729 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6864197530864198 [2024-10-11 17:07:06,730 INFO L175 Difference]: Start difference. First operand has 210 places, 223 transitions, 2770 flow. Second operand 15 states and 834 transitions. [2024-10-11 17:07:06,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 271 transitions, 3866 flow [2024-10-11 17:07:06,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 271 transitions, 3734 flow, removed 46 selfloop flow, removed 12 redundant places. [2024-10-11 17:07:06,776 INFO L231 Difference]: Finished difference. Result has 217 places, 221 transitions, 2831 flow [2024-10-11 17:07:06,776 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2694, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2831, PETRI_PLACES=217, PETRI_TRANSITIONS=221} [2024-10-11 17:07:06,777 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 134 predicate places. [2024-10-11 17:07:06,777 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 221 transitions, 2831 flow [2024-10-11 17:07:06,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 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) [2024-10-11 17:07:06,777 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:06,777 INFO L204 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] [2024-10-11 17:07:06,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 17:07:06,778 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:07:06,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:06,778 INFO L85 PathProgramCache]: Analyzing trace with hash -24746395, now seen corresponding path program 1 times [2024-10-11 17:07:06,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:06,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745193669] [2024-10-11 17:07:06,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:06,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:07,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:07,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:07,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745193669] [2024-10-11 17:07:07,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745193669] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:07,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:07,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:07:07,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714026440] [2024-10-11 17:07:07,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:07,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:07:07,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:07,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:07:07,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:07:07,524 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-10-11 17:07:07,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 221 transitions, 2831 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 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) [2024-10-11 17:07:07,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:07,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-10-11 17:07:07,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:07,988 INFO L124 PetriNetUnfolderBase]: 208/740 cut-off events. [2024-10-11 17:07:07,988 INFO L125 PetriNetUnfolderBase]: For 12410/12438 co-relation queries the response was YES. [2024-10-11 17:07:07,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4386 conditions, 740 events. 208/740 cut-off events. For 12410/12438 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4322 event pairs, 16 based on Foata normal form. 14/750 useless extension candidates. Maximal degree in co-relation 4266. Up to 223 conditions per place. [2024-10-11 17:07:07,995 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 123 selfloop transitions, 64 changer transitions 29/262 dead transitions. [2024-10-11 17:07:07,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 262 transitions, 3753 flow [2024-10-11 17:07:07,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-11 17:07:07,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-11 17:07:07,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 977 transitions. [2024-10-11 17:07:07,997 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6700960219478738 [2024-10-11 17:07:07,998 INFO L175 Difference]: Start difference. First operand has 217 places, 221 transitions, 2831 flow. Second operand 18 states and 977 transitions. [2024-10-11 17:07:07,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 262 transitions, 3753 flow [2024-10-11 17:07:08,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 262 transitions, 3581 flow, removed 73 selfloop flow, removed 10 redundant places. [2024-10-11 17:07:08,053 INFO L231 Difference]: Finished difference. Result has 218 places, 210 transitions, 2629 flow [2024-10-11 17:07:08,053 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2699, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2629, PETRI_PLACES=218, PETRI_TRANSITIONS=210} [2024-10-11 17:07:08,054 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 135 predicate places. [2024-10-11 17:07:08,054 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 210 transitions, 2629 flow [2024-10-11 17:07:08,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 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) [2024-10-11 17:07:08,055 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:08,055 INFO L204 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] [2024-10-11 17:07:08,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 17:07:08,055 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:07:08,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:08,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1196613613, now seen corresponding path program 2 times [2024-10-11 17:07:08,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:08,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48789733] [2024-10-11 17:07:08,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:08,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:08,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:08,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:08,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48789733] [2024-10-11 17:07:08,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48789733] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:08,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:08,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:07:08,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620998130] [2024-10-11 17:07:08,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:08,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:07:08,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:08,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:07:08,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:07:08,769 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-10-11 17:07:08,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 210 transitions, 2629 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 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) [2024-10-11 17:07:08,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:08,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-10-11 17:07:08,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:09,207 INFO L124 PetriNetUnfolderBase]: 195/720 cut-off events. [2024-10-11 17:07:09,208 INFO L125 PetriNetUnfolderBase]: For 12654/12682 co-relation queries the response was YES. [2024-10-11 17:07:09,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4163 conditions, 720 events. 195/720 cut-off events. For 12654/12682 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4212 event pairs, 16 based on Foata normal form. 14/730 useless extension candidates. Maximal degree in co-relation 4041. Up to 223 conditions per place. [2024-10-11 17:07:09,214 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 113 selfloop transitions, 56 changer transitions 37/252 dead transitions. [2024-10-11 17:07:09,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 252 transitions, 3605 flow [2024-10-11 17:07:09,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 17:07:09,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-10-11 17:07:09,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1077 transitions. [2024-10-11 17:07:09,218 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6648148148148149 [2024-10-11 17:07:09,218 INFO L175 Difference]: Start difference. First operand has 218 places, 210 transitions, 2629 flow. Second operand 20 states and 1077 transitions. [2024-10-11 17:07:09,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 252 transitions, 3605 flow [2024-10-11 17:07:09,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 252 transitions, 3396 flow, removed 35 selfloop flow, removed 17 redundant places. [2024-10-11 17:07:09,269 INFO L231 Difference]: Finished difference. Result has 222 places, 198 transitions, 2401 flow [2024-10-11 17:07:09,271 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2482, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2401, PETRI_PLACES=222, PETRI_TRANSITIONS=198} [2024-10-11 17:07:09,271 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 139 predicate places. [2024-10-11 17:07:09,271 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 198 transitions, 2401 flow [2024-10-11 17:07:09,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 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) [2024-10-11 17:07:09,273 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:09,273 INFO L204 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] [2024-10-11 17:07:09,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 17:07:09,273 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-10-11 17:07:09,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:09,274 INFO L85 PathProgramCache]: Analyzing trace with hash 681139153, now seen corresponding path program 3 times [2024-10-11 17:07:09,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:09,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521217546] [2024-10-11 17:07:09,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:09,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:09,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:09,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521217546] [2024-10-11 17:07:09,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521217546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:09,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:09,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 17:07:09,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525338527] [2024-10-11 17:07:09,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:09,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 17:07:09,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:09,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 17:07:09,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:07:10,024 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-10-11 17:07:10,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 198 transitions, 2401 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 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) [2024-10-11 17:07:10,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:10,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-10-11 17:07:10,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:10,527 INFO L124 PetriNetUnfolderBase]: 155/593 cut-off events. [2024-10-11 17:07:10,527 INFO L125 PetriNetUnfolderBase]: For 10525/10553 co-relation queries the response was YES. [2024-10-11 17:07:10,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3356 conditions, 593 events. 155/593 cut-off events. For 10525/10553 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3252 event pairs, 2 based on Foata normal form. 45/638 useless extension candidates. Maximal degree in co-relation 3291. Up to 159 conditions per place. [2024-10-11 17:07:10,531 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 0 selfloop transitions, 0 changer transitions 260/260 dead transitions. [2024-10-11 17:07:10,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 260 transitions, 3481 flow [2024-10-11 17:07:10,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-11 17:07:10,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-10-11 17:07:10,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1282 transitions. [2024-10-11 17:07:10,534 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6594650205761317 [2024-10-11 17:07:10,534 INFO L175 Difference]: Start difference. First operand has 222 places, 198 transitions, 2401 flow. Second operand 24 states and 1282 transitions. [2024-10-11 17:07:10,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 260 transitions, 3481 flow [2024-10-11 17:07:10,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 260 transitions, 3214 flow, removed 48 selfloop flow, removed 22 redundant places. [2024-10-11 17:07:10,566 INFO L231 Difference]: Finished difference. Result has 208 places, 0 transitions, 0 flow [2024-10-11 17:07:10,567 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2230, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=0, PETRI_PLACES=208, PETRI_TRANSITIONS=0} [2024-10-11 17:07:10,567 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 125 predicate places. [2024-10-11 17:07:10,567 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 0 transitions, 0 flow [2024-10-11 17:07:10,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 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) [2024-10-11 17:07:10,570 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2024-10-11 17:07:10,570 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-10-11 17:07:10,570 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2024-10-11 17:07:10,570 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2024-10-11 17:07:10,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 17:07:10,571 INFO L407 BasicCegarLoop]: Path program histogram: [14, 3, 1, 1, 1, 1] [2024-10-11 17:07:10,575 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 17:07:10,575 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 17:07:10,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:07:10 BasicIcfg [2024-10-11 17:07:10,580 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 17:07:10,580 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 17:07:10,580 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 17:07:10,580 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 17:07:10,581 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:06:42" (3/4) ... [2024-10-11 17:07:10,582 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 17:07:10,585 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-11 17:07:10,588 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 17:07:10,588 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 17:07:10,588 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 17:07:10,676 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 17:07:10,676 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 17:07:10,676 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 17:07:10,677 INFO L158 Benchmark]: Toolchain (without parser) took 29799.68ms. Allocated memory was 155.2MB in the beginning and 453.0MB in the end (delta: 297.8MB). Free memory was 98.1MB in the beginning and 231.1MB in the end (delta: -133.0MB). Peak memory consumption was 166.7MB. Max. memory is 16.1GB. [2024-10-11 17:07:10,677 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 155.2MB. Free memory is still 119.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:07:10,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 700.44ms. Allocated memory is still 155.2MB. Free memory was 98.1MB in the beginning and 67.9MB in the end (delta: 30.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-10-11 17:07:10,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.42ms. Allocated memory is still 155.2MB. Free memory was 67.9MB in the beginning and 65.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:07:10,680 INFO L158 Benchmark]: Boogie Preprocessor took 33.28ms. Allocated memory is still 155.2MB. Free memory was 65.7MB in the beginning and 63.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:07:10,680 INFO L158 Benchmark]: RCFGBuilder took 453.42ms. Allocated memory is still 155.2MB. Free memory was 63.7MB in the beginning and 47.8MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-11 17:07:10,681 INFO L158 Benchmark]: TraceAbstraction took 28447.86ms. Allocated memory was 155.2MB in the beginning and 453.0MB in the end (delta: 297.8MB). Free memory was 46.9MB in the beginning and 235.3MB in the end (delta: -188.4MB). Peak memory consumption was 110.0MB. Max. memory is 16.1GB. [2024-10-11 17:07:10,681 INFO L158 Benchmark]: Witness Printer took 96.08ms. Allocated memory is still 453.0MB. Free memory was 235.3MB in the beginning and 231.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 17:07:10,682 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 155.2MB. Free memory is still 119.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 700.44ms. Allocated memory is still 155.2MB. Free memory was 98.1MB in the beginning and 67.9MB in the end (delta: 30.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.42ms. Allocated memory is still 155.2MB. Free memory was 67.9MB in the beginning and 65.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.28ms. Allocated memory is still 155.2MB. Free memory was 65.7MB in the beginning and 63.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 453.42ms. Allocated memory is still 155.2MB. Free memory was 63.7MB in the beginning and 47.8MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 28447.86ms. Allocated memory was 155.2MB in the beginning and 453.0MB in the end (delta: 297.8MB). Free memory was 46.9MB in the beginning and 235.3MB in the end (delta: -188.4MB). Peak memory consumption was 110.0MB. Max. memory is 16.1GB. * Witness Printer took 96.08ms. Allocated memory is still 453.0MB. Free memory was 235.3MB in the beginning and 231.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 999]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 994]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 99 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 28.3s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 14, EmptinessCheckTime: 0.0s, AutomataDifference: 20.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7611 SdHoareTripleChecker+Valid, 12.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6557 mSDsluCounter, 13445 SdHoareTripleChecker+Invalid, 10.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12803 mSDsCounter, 618 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24361 IncrementalHoareTripleChecker+Invalid, 24979 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 618 mSolverCounterUnsat, 642 mSDtfsCounter, 24361 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 465 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 438 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1211 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2831occurred in iteration=18, InterpolantAutomatonStates: 298, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 1220 NumberOfCodeBlocks, 1220 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1199 ConstructedInterpolants, 0 QuantifiedInterpolants, 7979 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 17:07:10,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE