./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/13-privatized_40-traces-ex-6_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 5ccb5cdd0373226e681809d7804324f4019c28126fdbac8b5748755015258b65 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:26:16,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:26:16,215 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:26:16,219 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:26:16,222 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:26:16,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:26:16,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:26:16,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:26:16,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:26:16,249 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:26:16,249 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:26:16,249 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:26:16,250 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:26:16,250 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:26:16,251 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:26:16,251 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:26:16,251 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:26:16,252 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:26:16,252 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:26:16,252 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:26:16,253 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:26:16,256 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:26:16,257 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:26:16,257 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:26:16,257 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:26:16,257 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:26:16,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:26:16,258 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:26:16,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:26:16,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:26:16,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:26:16,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:26:16,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:26:16,259 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:26:16,260 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:26:16,260 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:26:16,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:26:16,264 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:26:16,264 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:26:16,264 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:26:16,264 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:26:16,265 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ccb5cdd0373226e681809d7804324f4019c28126fdbac8b5748755015258b65 [2024-10-24 15:26:16,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:26:16,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:26:16,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:26:16,535 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:26:16,535 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:26:16,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i [2024-10-24 15:26:18,059 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:26:18,300 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:26:18,301 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i [2024-10-24 15:26:18,314 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85f87d543/8e7079bff4664f18a3439ef97a323a2e/FLAGd449ecc8a [2024-10-24 15:26:18,327 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85f87d543/8e7079bff4664f18a3439ef97a323a2e [2024-10-24 15:26:18,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:26:18,331 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:26:18,332 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:26:18,332 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:26:18,337 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:26:18,338 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:26:18" (1/1) ... [2024-10-24 15:26:18,339 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ab00e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:18, skipping insertion in model container [2024-10-24 15:26:18,341 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:26:18" (1/1) ... [2024-10-24 15:26:18,388 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:26:18,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:26:18,772 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:26:18,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:26:18,865 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:26:18,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:18 WrapperNode [2024-10-24 15:26:18,866 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:26:18,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:26:18,867 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:26:18,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:26:18,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:18" (1/1) ... [2024-10-24 15:26:18,892 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:18" (1/1) ... [2024-10-24 15:26:18,915 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2024-10-24 15:26:18,916 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:26:18,917 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:26:18,917 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:26:18,917 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:26:18,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:18" (1/1) ... [2024-10-24 15:26:18,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:18" (1/1) ... [2024-10-24 15:26:18,949 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:18" (1/1) ... [2024-10-24 15:26:18,949 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:18" (1/1) ... [2024-10-24 15:26:18,956 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:18" (1/1) ... [2024-10-24 15:26:18,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:18" (1/1) ... [2024-10-24 15:26:18,963 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:18" (1/1) ... [2024-10-24 15:26:18,967 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:18" (1/1) ... [2024-10-24 15:26:18,969 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:26:18,974 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:26:18,974 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:26:18,974 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:26:18,975 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:18" (1/1) ... [2024-10-24 15:26:18,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:26:18,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:26:19,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 15:26:19,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 15:26:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:26:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:26:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 15:26:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 15:26:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:26:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:26:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:26:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:26:19,062 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:26:19,176 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:26:19,178 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:26:19,309 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:26:19,310 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:26:19,341 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:26:19,341 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 15:26:19,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:26:19 BoogieIcfgContainer [2024-10-24 15:26:19,342 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:26:19,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:26:19,344 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:26:19,347 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:26:19,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:26:18" (1/3) ... [2024-10-24 15:26:19,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1342ed2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:26:19, skipping insertion in model container [2024-10-24 15:26:19,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:26:18" (2/3) ... [2024-10-24 15:26:19,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1342ed2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:26:19, skipping insertion in model container [2024-10-24 15:26:19,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:26:19" (3/3) ... [2024-10-24 15:26:19,350 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2024-10-24 15:26:19,368 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:26:19,368 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-24 15:26:19,369 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:26:19,420 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 15:26:19,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 164 flow [2024-10-24 15:26:19,487 INFO L124 PetriNetUnfolderBase]: 2/79 cut-off events. [2024-10-24 15:26:19,487 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:26:19,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 2/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 74 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2024-10-24 15:26:19,493 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 80 transitions, 164 flow [2024-10-24 15:26:19,499 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 79 transitions, 161 flow [2024-10-24 15:26:19,508 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:26:19,514 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;@5ff25a5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:26:19,514 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-24 15:26:19,532 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:26:19,532 INFO L124 PetriNetUnfolderBase]: 0/44 cut-off events. [2024-10-24 15:26:19,532 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:26:19,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:26:19,533 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] [2024-10-24 15:26:19,534 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:26:19,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:26:19,541 INFO L85 PathProgramCache]: Analyzing trace with hash -932706531, now seen corresponding path program 1 times [2024-10-24 15:26:19,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:26:19,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429582876] [2024-10-24 15:26:19,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:26:19,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:26:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:26:19,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:26:19,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:26:19,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429582876] [2024-10-24 15:26:19,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429582876] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:26:19,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:26:19,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:26:19,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658204562] [2024-10-24 15:26:19,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:26:19,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:26:19,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:26:19,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:26:19,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:26:19,889 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 80 [2024-10-24 15:26:19,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 79 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2024-10-24 15:26:19,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:26:19,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 80 [2024-10-24 15:26:19,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:26:19,989 INFO L124 PetriNetUnfolderBase]: 36/227 cut-off events. [2024-10-24 15:26:19,991 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:26:19,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 227 events. 36/227 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 915 event pairs, 28 based on Foata normal form. 19/233 useless extension candidates. Maximal degree in co-relation 287. Up to 73 conditions per place. [2024-10-24 15:26:19,997 INFO L140 encePairwiseOnDemand]: 73/80 looper letters, 17 selfloop transitions, 4 changer transitions 0/81 dead transitions. [2024-10-24 15:26:19,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 81 transitions, 207 flow [2024-10-24 15:26:19,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:26:20,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:26:20,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 212 transitions. [2024-10-24 15:26:20,010 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8833333333333333 [2024-10-24 15:26:20,013 INFO L175 Difference]: Start difference. First operand has 81 places, 79 transitions, 161 flow. Second operand 3 states and 212 transitions. [2024-10-24 15:26:20,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 81 transitions, 207 flow [2024-10-24 15:26:20,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 81 transitions, 206 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:26:20,022 INFO L231 Difference]: Finished difference. Result has 82 places, 78 transitions, 182 flow [2024-10-24 15:26:20,024 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=82, PETRI_TRANSITIONS=78} [2024-10-24 15:26:20,027 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 1 predicate places. [2024-10-24 15:26:20,028 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 78 transitions, 182 flow [2024-10-24 15:26:20,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2024-10-24 15:26:20,028 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:26:20,028 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] [2024-10-24 15:26:20,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:26:20,029 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:26:20,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:26:20,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1653427043, now seen corresponding path program 1 times [2024-10-24 15:26:20,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:26:20,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523169131] [2024-10-24 15:26:20,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:26:20,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:26:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:26:20,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:26:20,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:26:20,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523169131] [2024-10-24 15:26:20,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523169131] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:26:20,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:26:20,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:26:20,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900350794] [2024-10-24 15:26:20,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:26:20,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:26:20,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:26:20,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:26:20,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:26:20,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 80 [2024-10-24 15:26:20,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 78 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2024-10-24 15:26:20,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:26:20,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 80 [2024-10-24 15:26:20,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:26:20,249 INFO L124 PetriNetUnfolderBase]: 37/343 cut-off events. [2024-10-24 15:26:20,249 INFO L125 PetriNetUnfolderBase]: For 28/30 co-relation queries the response was YES. [2024-10-24 15:26:20,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 343 events. 37/343 cut-off events. For 28/30 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1782 event pairs, 20 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 455. Up to 64 conditions per place. [2024-10-24 15:26:20,254 INFO L140 encePairwiseOnDemand]: 75/80 looper letters, 15 selfloop transitions, 5 changer transitions 1/85 dead transitions. [2024-10-24 15:26:20,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 85 transitions, 242 flow [2024-10-24 15:26:20,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:26:20,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:26:20,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2024-10-24 15:26:20,258 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8875 [2024-10-24 15:26:20,260 INFO L175 Difference]: Start difference. First operand has 82 places, 78 transitions, 182 flow. Second operand 3 states and 213 transitions. [2024-10-24 15:26:20,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 85 transitions, 242 flow [2024-10-24 15:26:20,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 85 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:26:20,263 INFO L231 Difference]: Finished difference. Result has 84 places, 81 transitions, 210 flow [2024-10-24 15:26:20,265 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=84, PETRI_TRANSITIONS=81} [2024-10-24 15:26:20,265 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 3 predicate places. [2024-10-24 15:26:20,266 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 81 transitions, 210 flow [2024-10-24 15:26:20,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2024-10-24 15:26:20,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:26:20,266 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] [2024-10-24 15:26:20,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:26:20,267 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:26:20,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:26:20,269 INFO L85 PathProgramCache]: Analyzing trace with hash -63758668, now seen corresponding path program 1 times [2024-10-24 15:26:20,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:26:20,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933466954] [2024-10-24 15:26:20,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:26:20,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:26:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:26:20,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:26:20,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:26:20,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933466954] [2024-10-24 15:26:20,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933466954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:26:20,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:26:20,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:26:20,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850685717] [2024-10-24 15:26:20,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:26:20,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:26:20,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:26:20,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:26:20,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:26:20,378 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 80 [2024-10-24 15:26:20,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 81 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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) [2024-10-24 15:26:20,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:26:20,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 80 [2024-10-24 15:26:20,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:26:20,453 INFO L124 PetriNetUnfolderBase]: 40/338 cut-off events. [2024-10-24 15:26:20,453 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-10-24 15:26:20,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 543 conditions, 338 events. 40/338 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1669 event pairs, 26 based on Foata normal form. 0/323 useless extension candidates. Maximal degree in co-relation 507. Up to 84 conditions per place. [2024-10-24 15:26:20,457 INFO L140 encePairwiseOnDemand]: 75/80 looper letters, 18 selfloop transitions, 4 changer transitions 3/87 dead transitions. [2024-10-24 15:26:20,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 87 transitions, 276 flow [2024-10-24 15:26:20,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:26:20,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:26:20,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2024-10-24 15:26:20,462 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2024-10-24 15:26:20,462 INFO L175 Difference]: Start difference. First operand has 84 places, 81 transitions, 210 flow. Second operand 3 states and 208 transitions. [2024-10-24 15:26:20,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 87 transitions, 276 flow [2024-10-24 15:26:20,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 87 transitions, 264 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:26:20,468 INFO L231 Difference]: Finished difference. Result has 86 places, 81 transitions, 224 flow [2024-10-24 15:26:20,468 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=86, PETRI_TRANSITIONS=81} [2024-10-24 15:26:20,469 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 5 predicate places. [2024-10-24 15:26:20,470 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 81 transitions, 224 flow [2024-10-24 15:26:20,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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) [2024-10-24 15:26:20,471 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:26:20,471 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] [2024-10-24 15:26:20,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:26:20,472 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:26:20,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:26:20,473 INFO L85 PathProgramCache]: Analyzing trace with hash -2103795233, now seen corresponding path program 1 times [2024-10-24 15:26:20,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:26:20,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932854329] [2024-10-24 15:26:20,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:26:20,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:26:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:26:20,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:26:20,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:26:20,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932854329] [2024-10-24 15:26:20,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932854329] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:26:20,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:26:20,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 15:26:20,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759824635] [2024-10-24 15:26:20,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:26:20,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:26:20,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:26:20,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:26:20,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:26:20,919 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 80 [2024-10-24 15:26:20,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 81 transitions, 224 flow. Second operand has 6 states, 6 states have (on average 68.33333333333333) internal successors, (410), 6 states have internal predecessors, (410), 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) [2024-10-24 15:26:20,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:26:20,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 80 [2024-10-24 15:26:20,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:26:20,997 INFO L124 PetriNetUnfolderBase]: 8/218 cut-off events. [2024-10-24 15:26:20,997 INFO L125 PetriNetUnfolderBase]: For 40/42 co-relation queries the response was YES. [2024-10-24 15:26:21,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 218 events. 8/218 cut-off events. For 40/42 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 818 event pairs, 3 based on Foata normal form. 3/212 useless extension candidates. Maximal degree in co-relation 281. Up to 17 conditions per place. [2024-10-24 15:26:21,000 INFO L140 encePairwiseOnDemand]: 75/80 looper letters, 6 selfloop transitions, 5 changer transitions 2/79 dead transitions. [2024-10-24 15:26:21,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 79 transitions, 232 flow [2024-10-24 15:26:21,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 15:26:21,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 15:26:21,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 350 transitions. [2024-10-24 15:26:21,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.875 [2024-10-24 15:26:21,004 INFO L175 Difference]: Start difference. First operand has 86 places, 81 transitions, 224 flow. Second operand 5 states and 350 transitions. [2024-10-24 15:26:21,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 79 transitions, 232 flow [2024-10-24 15:26:21,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 79 transitions, 212 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-10-24 15:26:21,008 INFO L231 Difference]: Finished difference. Result has 85 places, 76 transitions, 190 flow [2024-10-24 15:26:21,009 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=190, PETRI_PLACES=85, PETRI_TRANSITIONS=76} [2024-10-24 15:26:21,009 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 4 predicate places. [2024-10-24 15:26:21,009 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 76 transitions, 190 flow [2024-10-24 15:26:21,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.33333333333333) internal successors, (410), 6 states have internal predecessors, (410), 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) [2024-10-24 15:26:21,010 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:26:21,011 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] [2024-10-24 15:26:21,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:26:21,012 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:26:21,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:26:21,015 INFO L85 PathProgramCache]: Analyzing trace with hash 2064716704, now seen corresponding path program 1 times [2024-10-24 15:26:21,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:26:21,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764032631] [2024-10-24 15:26:21,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:26:21,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:26:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:26:21,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:26:21,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:26:21,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764032631] [2024-10-24 15:26:21,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764032631] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:26:21,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:26:21,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:26:21,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44619206] [2024-10-24 15:26:21,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:26:21,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:26:21,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:26:21,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:26:21,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:26:21,150 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 80 [2024-10-24 15:26:21,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 76 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2024-10-24 15:26:21,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:26:21,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 80 [2024-10-24 15:26:21,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:26:21,191 INFO L124 PetriNetUnfolderBase]: 3/188 cut-off events. [2024-10-24 15:26:21,191 INFO L125 PetriNetUnfolderBase]: For 15/19 co-relation queries the response was YES. [2024-10-24 15:26:21,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 188 events. 3/188 cut-off events. For 15/19 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 651 event pairs, 1 based on Foata normal form. 4/183 useless extension candidates. Maximal degree in co-relation 219. Up to 15 conditions per place. [2024-10-24 15:26:21,192 INFO L140 encePairwiseOnDemand]: 75/80 looper letters, 5 selfloop transitions, 4 changer transitions 3/79 dead transitions. [2024-10-24 15:26:21,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 79 transitions, 222 flow [2024-10-24 15:26:21,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:26:21,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:26:21,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2024-10-24 15:26:21,194 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9083333333333333 [2024-10-24 15:26:21,194 INFO L175 Difference]: Start difference. First operand has 85 places, 76 transitions, 190 flow. Second operand 3 states and 218 transitions. [2024-10-24 15:26:21,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 79 transitions, 222 flow [2024-10-24 15:26:21,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 79 transitions, 215 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 15:26:21,196 INFO L231 Difference]: Finished difference. Result has 85 places, 76 transitions, 198 flow [2024-10-24 15:26:21,196 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=85, PETRI_TRANSITIONS=76} [2024-10-24 15:26:21,197 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 4 predicate places. [2024-10-24 15:26:21,197 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 76 transitions, 198 flow [2024-10-24 15:26:21,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2024-10-24 15:26:21,198 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:26:21,198 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] [2024-10-24 15:26:21,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 15:26:21,198 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:26:21,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:26:21,199 INFO L85 PathProgramCache]: Analyzing trace with hash -302807890, now seen corresponding path program 2 times [2024-10-24 15:26:21,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:26:21,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260060069] [2024-10-24 15:26:21,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:26:21,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:26:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:26:21,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:26:21,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:26:21,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260060069] [2024-10-24 15:26:21,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260060069] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:26:21,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:26:21,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:26:21,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065113520] [2024-10-24 15:26:21,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:26:21,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 15:26:21,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:26:21,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 15:26:21,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:26:21,446 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 80 [2024-10-24 15:26:21,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 76 transitions, 198 flow. Second operand has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 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) [2024-10-24 15:26:21,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:26:21,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 80 [2024-10-24 15:26:21,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:26:21,493 INFO L124 PetriNetUnfolderBase]: 0/95 cut-off events. [2024-10-24 15:26:21,494 INFO L125 PetriNetUnfolderBase]: For 17/18 co-relation queries the response was YES. [2024-10-24 15:26:21,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 95 events. 0/95 cut-off events. For 17/18 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 2/95 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2024-10-24 15:26:21,495 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2024-10-24 15:26:21,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 72 transitions, 198 flow [2024-10-24 15:26:21,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 15:26:21,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 15:26:21,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 346 transitions. [2024-10-24 15:26:21,497 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.865 [2024-10-24 15:26:21,497 INFO L175 Difference]: Start difference. First operand has 85 places, 76 transitions, 198 flow. Second operand 5 states and 346 transitions. [2024-10-24 15:26:21,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 72 transitions, 198 flow [2024-10-24 15:26:21,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 72 transitions, 174 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-10-24 15:26:21,501 INFO L231 Difference]: Finished difference. Result has 81 places, 0 transitions, 0 flow [2024-10-24 15:26:21,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=81, PETRI_TRANSITIONS=0} [2024-10-24 15:26:21,503 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 0 predicate places. [2024-10-24 15:26:21,504 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 0 transitions, 0 flow [2024-10-24 15:26:21,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 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) [2024-10-24 15:26:21,507 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2024-10-24 15:26:21,508 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2024-10-24 15:26:21,508 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-10-24 15:26:21,508 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-10-24 15:26:21,509 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-10-24 15:26:21,509 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-10-24 15:26:21,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 15:26:21,509 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-10-24 15:26:21,515 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 15:26:21,515 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 15:26:21,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:26:21 BasicIcfg [2024-10-24 15:26:21,525 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 15:26:21,526 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 15:26:21,526 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 15:26:21,527 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 15:26:21,527 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:26:19" (3/4) ... [2024-10-24 15:26:21,529 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 15:26:21,532 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-24 15:26:21,536 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-24 15:26:21,537 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 15:26:21,537 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-24 15:26:21,538 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 15:26:21,624 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 15:26:21,625 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 15:26:21,625 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 15:26:21,626 INFO L158 Benchmark]: Toolchain (without parser) took 3295.16ms. Allocated memory was 169.9MB in the beginning and 211.8MB in the end (delta: 41.9MB). Free memory was 100.3MB in the beginning and 168.1MB in the end (delta: -67.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:26:21,627 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 78.3MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:26:21,627 INFO L158 Benchmark]: CACSL2BoogieTranslator took 533.98ms. Allocated memory is still 169.9MB. Free memory was 100.1MB in the beginning and 78.7MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-24 15:26:21,627 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.80ms. Allocated memory is still 169.9MB. Free memory was 78.7MB in the beginning and 76.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:26:21,628 INFO L158 Benchmark]: Boogie Preprocessor took 56.00ms. Allocated memory is still 169.9MB. Free memory was 76.6MB in the beginning and 140.5MB in the end (delta: -63.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2024-10-24 15:26:21,628 INFO L158 Benchmark]: RCFGBuilder took 368.57ms. Allocated memory is still 169.9MB. Free memory was 140.5MB in the beginning and 125.0MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-24 15:26:21,629 INFO L158 Benchmark]: TraceAbstraction took 2181.71ms. Allocated memory was 169.9MB in the beginning and 211.8MB in the end (delta: 41.9MB). Free memory was 124.1MB in the beginning and 172.3MB in the end (delta: -48.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:26:21,631 INFO L158 Benchmark]: Witness Printer took 99.00ms. Allocated memory is still 211.8MB. Free memory was 171.3MB in the beginning and 168.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 15:26:21,633 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 78.3MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 533.98ms. Allocated memory is still 169.9MB. Free memory was 100.1MB in the beginning and 78.7MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.80ms. Allocated memory is still 169.9MB. Free memory was 78.7MB in the beginning and 76.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.00ms. Allocated memory is still 169.9MB. Free memory was 76.6MB in the beginning and 140.5MB in the end (delta: -63.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * RCFGBuilder took 368.57ms. Allocated memory is still 169.9MB. Free memory was 140.5MB in the beginning and 125.0MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2181.71ms. Allocated memory was 169.9MB in the beginning and 211.8MB in the end (delta: 41.9MB). Free memory was 124.1MB in the beginning and 172.3MB in the end (delta: -48.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 99.00ms. Allocated memory is still 211.8MB. Free memory was 171.3MB in the beginning and 168.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 689]: 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, 104 locations, 6 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: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 197 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 308 IncrementalHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 34 mSDtfsCounter, 308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=224occurred in iteration=3, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 271 NumberOfCodeBlocks, 271 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 265 ConstructedInterpolants, 0 QuantifiedInterpolants, 586 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 15:26:21,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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