./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/pthread-atomic/read_write_lock-2b.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/pthread-atomic/read_write_lock-2b.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 7b71c781c26c072fdf5838e0877462128517513c3df1f3bde9f2474cb4533ecb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:04:00,969 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:04:01,049 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:04:01,055 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:04:01,057 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:04:01,087 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:04:01,088 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:04:01,088 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:04:01,089 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:04:01,090 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:04:01,091 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:04:01,092 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:04:01,092 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:04:01,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:04:01,093 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:04:01,093 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:04:01,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:04:01,095 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:04:01,095 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:04:01,096 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:04:01,096 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:04:01,099 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:04:01,099 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:04:01,100 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:04:01,100 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:04:01,100 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:04:01,100 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:04:01,101 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:04:01,101 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:04:01,101 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:04:01,101 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:04:01,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:04:01,102 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:04:01,102 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:04:01,102 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:04:01,102 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:04:01,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:04:01,103 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:04:01,103 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:04:01,103 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:04:01,104 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:04:01,105 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b71c781c26c072fdf5838e0877462128517513c3df1f3bde9f2474cb4533ecb [2024-10-24 15:04:01,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:04:01,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:04:01,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:04:01,376 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:04:01,377 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:04:01,378 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-2b.i [2024-10-24 15:04:02,846 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:04:03,084 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:04:03,084 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-2b.i [2024-10-24 15:04:03,098 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a3b623ef/410a80e88ce64052aed6605e65a8564e/FLAG7fcd01306 [2024-10-24 15:04:03,113 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a3b623ef/410a80e88ce64052aed6605e65a8564e [2024-10-24 15:04:03,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:04:03,116 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:04:03,117 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:04:03,118 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:04:03,122 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:04:03,123 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:04:03" (1/1) ... [2024-10-24 15:04:03,123 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38370b99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:03, skipping insertion in model container [2024-10-24 15:04:03,124 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:04:03" (1/1) ... [2024-10-24 15:04:03,169 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:04:03,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:04:03,551 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:04:03,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:04:03,654 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:04:03,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:03 WrapperNode [2024-10-24 15:04:03,654 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:04:03,656 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:04:03,656 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:04:03,656 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:04:03,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:03" (1/1) ... [2024-10-24 15:04:03,681 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:03" (1/1) ... [2024-10-24 15:04:03,706 INFO L138 Inliner]: procedures = 169, calls = 15, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 123 [2024-10-24 15:04:03,706 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:04:03,707 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:04:03,707 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:04:03,707 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:04:03,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:03" (1/1) ... [2024-10-24 15:04:03,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:03" (1/1) ... [2024-10-24 15:04:03,722 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:03" (1/1) ... [2024-10-24 15:04:03,722 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:03" (1/1) ... [2024-10-24 15:04:03,727 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:03" (1/1) ... [2024-10-24 15:04:03,737 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:03" (1/1) ... [2024-10-24 15:04:03,739 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:03" (1/1) ... [2024-10-24 15:04:03,743 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:03" (1/1) ... [2024-10-24 15:04:03,750 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:04:03,751 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:04:03,751 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:04:03,751 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:04:03,752 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:03" (1/1) ... [2024-10-24 15:04:03,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:04:03,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:04:03,814 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 15:04:03,822 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 15:04:03,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:04:03,872 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2024-10-24 15:04:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2024-10-24 15:04:03,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:04:03,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:04:03,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:04:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-10-24 15:04:03,873 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-10-24 15:04:03,874 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 15:04:04,011 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:04:04,012 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:04:04,228 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:04:04,228 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:04:04,334 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:04:04,334 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 15:04:04,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:04:04 BoogieIcfgContainer [2024-10-24 15:04:04,335 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:04:04,337 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:04:04,337 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:04:04,345 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:04:04,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:04:03" (1/3) ... [2024-10-24 15:04:04,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7803c79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:04:04, skipping insertion in model container [2024-10-24 15:04:04,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:03" (2/3) ... [2024-10-24 15:04:04,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7803c79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:04:04, skipping insertion in model container [2024-10-24 15:04:04,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:04:04" (3/3) ... [2024-10-24 15:04:04,349 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-2b.i [2024-10-24 15:04:04,367 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:04:04,367 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-10-24 15:04:04,367 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:04:04,450 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-24 15:04:04,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 174 transitions, 376 flow [2024-10-24 15:04:04,573 INFO L124 PetriNetUnfolderBase]: 4/170 cut-off events. [2024-10-24 15:04:04,574 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 15:04:04,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 170 events. 4/170 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 408 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 148. Up to 2 conditions per place. [2024-10-24 15:04:04,585 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 174 transitions, 376 flow [2024-10-24 15:04:04,590 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 165 transitions, 351 flow [2024-10-24 15:04:04,600 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:04:04,610 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;@b1b7af3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:04:04,610 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-10-24 15:04:04,617 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:04:04,618 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-10-24 15:04:04,618 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:04:04,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:04,619 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] [2024-10-24 15:04:04,619 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-24 15:04:04,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:04,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1940056406, now seen corresponding path program 1 times [2024-10-24 15:04:04,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:04,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449465676] [2024-10-24 15:04:04,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:04,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:04:04,833 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 15:04:04,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:04:04,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449465676] [2024-10-24 15:04:04,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449465676] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:04:04,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:04:04,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 15:04:04,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772539294] [2024-10-24 15:04:04,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:04:04,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 15:04:04,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:04:04,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 15:04:04,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 15:04:04,871 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 174 [2024-10-24 15:04:04,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 165 transitions, 351 flow. Second operand has 2 states, 2 states have (on average 145.0) internal successors, (290), 2 states have internal predecessors, (290), 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 15:04:04,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:04:04,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 174 [2024-10-24 15:04:04,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:04:05,070 INFO L124 PetriNetUnfolderBase]: 51/829 cut-off events. [2024-10-24 15:04:05,070 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-10-24 15:04:05,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 974 conditions, 829 events. 51/829 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5446 event pairs, 51 based on Foata normal form. 38/718 useless extension candidates. Maximal degree in co-relation 860. Up to 96 conditions per place. [2024-10-24 15:04:05,088 INFO L140 encePairwiseOnDemand]: 158/174 looper letters, 11 selfloop transitions, 0 changer transitions 0/145 dead transitions. [2024-10-24 15:04:05,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 145 transitions, 333 flow [2024-10-24 15:04:05,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 15:04:05,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-24 15:04:05,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 315 transitions. [2024-10-24 15:04:05,105 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9051724137931034 [2024-10-24 15:04:05,107 INFO L175 Difference]: Start difference. First operand has 174 places, 165 transitions, 351 flow. Second operand 2 states and 315 transitions. [2024-10-24 15:04:05,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 145 transitions, 333 flow [2024-10-24 15:04:05,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 145 transitions, 320 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-24 15:04:05,118 INFO L231 Difference]: Finished difference. Result has 152 places, 145 transitions, 298 flow [2024-10-24 15:04:05,121 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=298, PETRI_PLACES=152, PETRI_TRANSITIONS=145} [2024-10-24 15:04:05,124 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -22 predicate places. [2024-10-24 15:04:05,125 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 145 transitions, 298 flow [2024-10-24 15:04:05,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 145.0) internal successors, (290), 2 states have internal predecessors, (290), 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 15:04:05,126 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:05,126 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] [2024-10-24 15:04:05,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:04:05,128 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-24 15:04:05,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:05,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1414159397, now seen corresponding path program 1 times [2024-10-24 15:04:05,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:05,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258313149] [2024-10-24 15:04:05,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:05,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:04:05,246 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 15:04:05,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:04:05,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258313149] [2024-10-24 15:04:05,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258313149] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:04:05,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:04:05,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:04:05,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407033528] [2024-10-24 15:04:05,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:04:05,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:04:05,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:04:05,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:04:05,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:04:05,291 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 174 [2024-10-24 15:04:05,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 145 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:04:05,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:04:05,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 174 [2024-10-24 15:04:05,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:04:06,174 INFO L124 PetriNetUnfolderBase]: 1206/5690 cut-off events. [2024-10-24 15:04:06,175 INFO L125 PetriNetUnfolderBase]: For 55/82 co-relation queries the response was YES. [2024-10-24 15:04:06,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7732 conditions, 5690 events. 1206/5690 cut-off events. For 55/82 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 62145 event pairs, 746 based on Foata normal form. 0/4662 useless extension candidates. Maximal degree in co-relation 7729. Up to 1501 conditions per place. [2024-10-24 15:04:06,226 INFO L140 encePairwiseOnDemand]: 165/174 looper letters, 26 selfloop transitions, 8 changer transitions 0/158 dead transitions. [2024-10-24 15:04:06,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 158 transitions, 396 flow [2024-10-24 15:04:06,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:04:06,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:04:06,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2024-10-24 15:04:06,230 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8371647509578544 [2024-10-24 15:04:06,230 INFO L175 Difference]: Start difference. First operand has 152 places, 145 transitions, 298 flow. Second operand 3 states and 437 transitions. [2024-10-24 15:04:06,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 158 transitions, 396 flow [2024-10-24 15:04:06,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 158 transitions, 396 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:04:06,240 INFO L231 Difference]: Finished difference. Result has 156 places, 152 transitions, 360 flow [2024-10-24 15:04:06,242 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=360, PETRI_PLACES=156, PETRI_TRANSITIONS=152} [2024-10-24 15:04:06,242 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -18 predicate places. [2024-10-24 15:04:06,243 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 152 transitions, 360 flow [2024-10-24 15:04:06,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:04:06,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:06,244 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] [2024-10-24 15:04:06,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:04:06,244 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-24 15:04:06,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:06,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1846805203, now seen corresponding path program 1 times [2024-10-24 15:04:06,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:06,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540164218] [2024-10-24 15:04:06,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:06,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:04:06,330 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 15:04:06,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:04:06,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540164218] [2024-10-24 15:04:06,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540164218] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:04:06,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:04:06,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:04:06,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767148323] [2024-10-24 15:04:06,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:04:06,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:04:06,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:04:06,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:04:06,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:04:06,370 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 174 [2024-10-24 15:04:06,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 152 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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 15:04:06,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:04:06,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 174 [2024-10-24 15:04:06,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:04:08,547 INFO L124 PetriNetUnfolderBase]: 3944/17282 cut-off events. [2024-10-24 15:04:08,548 INFO L125 PetriNetUnfolderBase]: For 3687/4562 co-relation queries the response was YES. [2024-10-24 15:04:08,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27404 conditions, 17282 events. 3944/17282 cut-off events. For 3687/4562 co-relation queries the response was YES. Maximal size of possible extension queue 728. Compared 226825 event pairs, 1120 based on Foata normal form. 27/14140 useless extension candidates. Maximal degree in co-relation 27399. Up to 3401 conditions per place. [2024-10-24 15:04:08,750 INFO L140 encePairwiseOnDemand]: 160/174 looper letters, 39 selfloop transitions, 15 changer transitions 0/176 dead transitions. [2024-10-24 15:04:08,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 176 transitions, 556 flow [2024-10-24 15:04:08,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:04:08,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:04:08,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 438 transitions. [2024-10-24 15:04:08,753 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8390804597701149 [2024-10-24 15:04:08,754 INFO L175 Difference]: Start difference. First operand has 156 places, 152 transitions, 360 flow. Second operand 3 states and 438 transitions. [2024-10-24 15:04:08,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 176 transitions, 556 flow [2024-10-24 15:04:08,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 176 transitions, 528 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:04:08,786 INFO L231 Difference]: Finished difference. Result has 158 places, 167 transitions, 494 flow [2024-10-24 15:04:08,786 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=494, PETRI_PLACES=158, PETRI_TRANSITIONS=167} [2024-10-24 15:04:08,788 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -16 predicate places. [2024-10-24 15:04:08,788 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 167 transitions, 494 flow [2024-10-24 15:04:08,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 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 15:04:08,789 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:08,789 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] [2024-10-24 15:04:08,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:04:08,789 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting writerErr4ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-24 15:04:08,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:08,790 INFO L85 PathProgramCache]: Analyzing trace with hash 325322583, now seen corresponding path program 1 times [2024-10-24 15:04:08,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:08,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813381828] [2024-10-24 15:04:08,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:08,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:04:08,850 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 15:04:08,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:04:08,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813381828] [2024-10-24 15:04:08,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813381828] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:04:08,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:04:08,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:04:08,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786301654] [2024-10-24 15:04:08,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:04:08,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:04:08,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:04:08,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:04:08,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:04:08,868 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 174 [2024-10-24 15:04:08,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 167 transitions, 494 flow. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 15:04:08,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:04:08,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 174 [2024-10-24 15:04:08,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:04:11,254 INFO L124 PetriNetUnfolderBase]: 3945/19878 cut-off events. [2024-10-24 15:04:11,254 INFO L125 PetriNetUnfolderBase]: For 5156/7871 co-relation queries the response was YES. [2024-10-24 15:04:11,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32496 conditions, 19878 events. 3945/19878 cut-off events. For 5156/7871 co-relation queries the response was YES. Maximal size of possible extension queue 881. Compared 277830 event pairs, 1184 based on Foata normal form. 32/16376 useless extension candidates. Maximal degree in co-relation 32490. Up to 3043 conditions per place. [2024-10-24 15:04:11,519 INFO L140 encePairwiseOnDemand]: 166/174 looper letters, 19 selfloop transitions, 7 changer transitions 0/176 dead transitions. [2024-10-24 15:04:11,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 176 transitions, 568 flow [2024-10-24 15:04:11,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:04:11,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:04:11,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 441 transitions. [2024-10-24 15:04:11,522 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8448275862068966 [2024-10-24 15:04:11,523 INFO L175 Difference]: Start difference. First operand has 158 places, 167 transitions, 494 flow. Second operand 3 states and 441 transitions. [2024-10-24 15:04:11,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 176 transitions, 568 flow [2024-10-24 15:04:11,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 176 transitions, 538 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:04:11,543 INFO L231 Difference]: Finished difference. Result has 160 places, 173 transitions, 518 flow [2024-10-24 15:04:11,543 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=518, PETRI_PLACES=160, PETRI_TRANSITIONS=173} [2024-10-24 15:04:11,544 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -14 predicate places. [2024-10-24 15:04:11,544 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 173 transitions, 518 flow [2024-10-24 15:04:11,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 15:04:11,545 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:11,545 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] [2024-10-24 15:04:11,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:04:11,545 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-24 15:04:11,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:11,547 INFO L85 PathProgramCache]: Analyzing trace with hash 734303005, now seen corresponding path program 1 times [2024-10-24 15:04:11,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:11,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879017347] [2024-10-24 15:04:11,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:11,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:04:11,785 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 15:04:11,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:04:11,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879017347] [2024-10-24 15:04:11,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879017347] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:04:11,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:04:11,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:04:11,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961018840] [2024-10-24 15:04:11,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:04:11,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 15:04:11,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:04:11,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 15:04:11,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:04:11,816 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 174 [2024-10-24 15:04:11,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 173 transitions, 518 flow. Second operand has 5 states, 5 states have (on average 139.2) internal successors, (696), 5 states have internal predecessors, (696), 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 15:04:11,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:04:11,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 174 [2024-10-24 15:04:11,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:04:16,000 INFO L124 PetriNetUnfolderBase]: 10151/44991 cut-off events. [2024-10-24 15:04:16,001 INFO L125 PetriNetUnfolderBase]: For 7778/13048 co-relation queries the response was YES. [2024-10-24 15:04:16,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73637 conditions, 44991 events. 10151/44991 cut-off events. For 7778/13048 co-relation queries the response was YES. Maximal size of possible extension queue 1820. Compared 691863 event pairs, 2356 based on Foata normal form. 77/36416 useless extension candidates. Maximal degree in co-relation 73630. Up to 6509 conditions per place. [2024-10-24 15:04:16,497 INFO L140 encePairwiseOnDemand]: 164/174 looper letters, 31 selfloop transitions, 17 changer transitions 0/201 dead transitions. [2024-10-24 15:04:16,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 201 transitions, 707 flow [2024-10-24 15:04:16,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 15:04:16,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 15:04:16,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 735 transitions. [2024-10-24 15:04:16,499 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8448275862068966 [2024-10-24 15:04:16,499 INFO L175 Difference]: Start difference. First operand has 160 places, 173 transitions, 518 flow. Second operand 5 states and 735 transitions. [2024-10-24 15:04:16,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 201 transitions, 707 flow [2024-10-24 15:04:16,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 201 transitions, 689 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:04:16,556 INFO L231 Difference]: Finished difference. Result has 165 places, 187 transitions, 627 flow [2024-10-24 15:04:16,556 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=627, PETRI_PLACES=165, PETRI_TRANSITIONS=187} [2024-10-24 15:04:16,557 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -9 predicate places. [2024-10-24 15:04:16,557 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 187 transitions, 627 flow [2024-10-24 15:04:16,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 139.2) internal successors, (696), 5 states have internal predecessors, (696), 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 15:04:16,558 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:16,558 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] [2024-10-24 15:04:16,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 15:04:16,559 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-24 15:04:16,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:16,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1604632537, now seen corresponding path program 2 times [2024-10-24 15:04:16,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:16,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837120491] [2024-10-24 15:04:16,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:16,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:04:16,648 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 15:04:16,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:04:16,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837120491] [2024-10-24 15:04:16,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837120491] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:04:16,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:04:16,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:04:16,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622092105] [2024-10-24 15:04:16,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:04:16,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:04:16,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:04:16,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:04:16,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:04:16,659 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 174 [2024-10-24 15:04:16,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 187 transitions, 627 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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 15:04:16,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:04:16,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 174 [2024-10-24 15:04:16,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:04:18,470 INFO L124 PetriNetUnfolderBase]: 2626/18284 cut-off events. [2024-10-24 15:04:18,471 INFO L125 PetriNetUnfolderBase]: For 4127/5017 co-relation queries the response was YES. [2024-10-24 15:04:18,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29075 conditions, 18284 events. 2626/18284 cut-off events. For 4127/5017 co-relation queries the response was YES. Maximal size of possible extension queue 726. Compared 263604 event pairs, 808 based on Foata normal form. 141/15058 useless extension candidates. Maximal degree in co-relation 29066. Up to 2621 conditions per place. [2024-10-24 15:04:18,610 INFO L140 encePairwiseOnDemand]: 168/174 looper letters, 19 selfloop transitions, 7 changer transitions 0/182 dead transitions. [2024-10-24 15:04:18,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 182 transitions, 637 flow [2024-10-24 15:04:18,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:04:18,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:04:18,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2024-10-24 15:04:18,612 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8544061302681992 [2024-10-24 15:04:18,613 INFO L175 Difference]: Start difference. First operand has 165 places, 187 transitions, 627 flow. Second operand 3 states and 446 transitions. [2024-10-24 15:04:18,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 182 transitions, 637 flow [2024-10-24 15:04:18,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 182 transitions, 623 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-10-24 15:04:18,622 INFO L231 Difference]: Finished difference. Result has 166 places, 177 transitions, 569 flow [2024-10-24 15:04:18,623 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=569, PETRI_PLACES=166, PETRI_TRANSITIONS=177} [2024-10-24 15:04:18,624 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -8 predicate places. [2024-10-24 15:04:18,624 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 177 transitions, 569 flow [2024-10-24 15:04:18,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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 15:04:18,624 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:18,625 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] [2024-10-24 15:04:18,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 15:04:18,625 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr4ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-24 15:04:18,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:18,626 INFO L85 PathProgramCache]: Analyzing trace with hash 129534938, now seen corresponding path program 1 times [2024-10-24 15:04:18,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:18,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079039207] [2024-10-24 15:04:18,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:18,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:04:18,659 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 15:04:18,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:04:18,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079039207] [2024-10-24 15:04:18,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079039207] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:04:18,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:04:18,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:04:18,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284851869] [2024-10-24 15:04:18,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:04:18,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:04:18,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:04:18,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:04:18,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:04:18,680 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 174 [2024-10-24 15:04:18,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 177 transitions, 569 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 15:04:18,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:04:18,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 174 [2024-10-24 15:04:18,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:04:21,593 INFO L124 PetriNetUnfolderBase]: 5685/31584 cut-off events. [2024-10-24 15:04:21,594 INFO L125 PetriNetUnfolderBase]: For 12547/13712 co-relation queries the response was YES. [2024-10-24 15:04:21,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53926 conditions, 31584 events. 5685/31584 cut-off events. For 12547/13712 co-relation queries the response was YES. Maximal size of possible extension queue 1298. Compared 483246 event pairs, 2138 based on Foata normal form. 3/25667 useless extension candidates. Maximal degree in co-relation 53917. Up to 3939 conditions per place. [2024-10-24 15:04:22,051 INFO L140 encePairwiseOnDemand]: 168/174 looper letters, 33 selfloop transitions, 5 changer transitions 0/189 dead transitions. [2024-10-24 15:04:22,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 189 transitions, 699 flow [2024-10-24 15:04:22,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:04:22,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:04:22,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 438 transitions. [2024-10-24 15:04:22,053 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8390804597701149 [2024-10-24 15:04:22,054 INFO L175 Difference]: Start difference. First operand has 166 places, 177 transitions, 569 flow. Second operand 3 states and 438 transitions. [2024-10-24 15:04:22,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 189 transitions, 699 flow [2024-10-24 15:04:22,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 189 transitions, 679 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:04:22,072 INFO L231 Difference]: Finished difference. Result has 168 places, 181 transitions, 593 flow [2024-10-24 15:04:22,072 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=593, PETRI_PLACES=168, PETRI_TRANSITIONS=181} [2024-10-24 15:04:22,073 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -6 predicate places. [2024-10-24 15:04:22,073 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 181 transitions, 593 flow [2024-10-24 15:04:22,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 15:04:22,074 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:22,074 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 15:04:22,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 15:04:22,075 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-24 15:04:22,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:22,075 INFO L85 PathProgramCache]: Analyzing trace with hash -832909560, now seen corresponding path program 1 times [2024-10-24 15:04:22,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:22,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954645085] [2024-10-24 15:04:22,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:22,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:04:22,108 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 15:04:22,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:04:22,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954645085] [2024-10-24 15:04:22,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954645085] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:04:22,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:04:22,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:04:22,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767531784] [2024-10-24 15:04:22,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:04:22,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:04:22,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:04:22,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:04:22,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:04:22,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 174 [2024-10-24 15:04:22,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 181 transitions, 593 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:04:22,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:04:22,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 174 [2024-10-24 15:04:22,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:04:25,616 INFO L124 PetriNetUnfolderBase]: 7006/40751 cut-off events. [2024-10-24 15:04:25,616 INFO L125 PetriNetUnfolderBase]: For 18036/22780 co-relation queries the response was YES. [2024-10-24 15:04:25,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71946 conditions, 40751 events. 7006/40751 cut-off events. For 18036/22780 co-relation queries the response was YES. Maximal size of possible extension queue 1799. Compared 655619 event pairs, 2320 based on Foata normal form. 159/33627 useless extension candidates. Maximal degree in co-relation 71936. Up to 7090 conditions per place. [2024-10-24 15:04:26,210 INFO L140 encePairwiseOnDemand]: 166/174 looper letters, 43 selfloop transitions, 12 changer transitions 0/194 dead transitions. [2024-10-24 15:04:26,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 194 transitions, 765 flow [2024-10-24 15:04:26,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:04:26,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:04:26,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 433 transitions. [2024-10-24 15:04:26,212 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8295019157088123 [2024-10-24 15:04:26,213 INFO L175 Difference]: Start difference. First operand has 168 places, 181 transitions, 593 flow. Second operand 3 states and 433 transitions. [2024-10-24 15:04:26,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 194 transitions, 765 flow [2024-10-24 15:04:26,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 194 transitions, 755 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:04:26,290 INFO L231 Difference]: Finished difference. Result has 170 places, 191 transitions, 705 flow [2024-10-24 15:04:26,290 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=705, PETRI_PLACES=170, PETRI_TRANSITIONS=191} [2024-10-24 15:04:26,291 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -4 predicate places. [2024-10-24 15:04:26,291 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 191 transitions, 705 flow [2024-10-24 15:04:26,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:04:26,292 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:26,292 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] [2024-10-24 15:04:26,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 15:04:26,292 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting readerErr5ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-24 15:04:26,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:26,293 INFO L85 PathProgramCache]: Analyzing trace with hash 2095129202, now seen corresponding path program 1 times [2024-10-24 15:04:26,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:26,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059015597] [2024-10-24 15:04:26,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:26,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:04:26,318 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 15:04:26,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:04:26,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059015597] [2024-10-24 15:04:26,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059015597] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:04:26,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:04:26,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:04:26,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193845405] [2024-10-24 15:04:26,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:04:26,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:04:26,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:04:26,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:04:26,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:04:26,339 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 174 [2024-10-24 15:04:26,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 191 transitions, 705 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 15:04:26,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:04:26,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 174 [2024-10-24 15:04:26,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:04:28,993 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][201], [37#L718-4true, Black: 193#true, 162#L708-4true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 56#L700-1true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 19#L699-3true, 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-10-24 15:04:28,993 INFO L294 olderBase$Statistics]: this new event has 81 ancestors and is cut-off event [2024-10-24 15:04:28,993 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2024-10-24 15:04:28,993 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2024-10-24 15:04:28,993 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2024-10-24 15:04:29,314 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][143], [37#L718-4true, 162#L708-4true, Black: 193#true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 34#L700true, 85#L700-1true, Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-10-24 15:04:29,315 INFO L294 olderBase$Statistics]: this new event has 82 ancestors and is cut-off event [2024-10-24 15:04:29,315 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-10-24 15:04:29,315 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-10-24 15:04:29,315 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-10-24 15:04:29,339 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][143], [37#L718-4true, Black: 193#true, 162#L708-4true, 47#L700true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 56#L700-1true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-10-24 15:04:29,339 INFO L294 olderBase$Statistics]: this new event has 82 ancestors and is cut-off event [2024-10-24 15:04:29,340 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-10-24 15:04:29,340 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-10-24 15:04:29,340 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-10-24 15:04:29,370 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][201], [37#L718-4true, Black: 193#true, 162#L708-4true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), 69#L700-3true, Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 19#L699-3true, 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-10-24 15:04:29,371 INFO L294 olderBase$Statistics]: this new event has 83 ancestors and is cut-off event [2024-10-24 15:04:29,371 INFO L297 olderBase$Statistics]: existing Event has 83 ancestors and is cut-off event [2024-10-24 15:04:29,371 INFO L297 olderBase$Statistics]: existing Event has 83 ancestors and is cut-off event [2024-10-24 15:04:29,371 INFO L297 olderBase$Statistics]: existing Event has 83 ancestors and is cut-off event [2024-10-24 15:04:29,734 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][200], [37#L718-4true, Black: 193#true, 162#L708-4true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 35#writerErr4ASSERT_VIOLATIONDATA_RACEtrue, Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 64#L699-3true, 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-10-24 15:04:29,734 INFO L294 olderBase$Statistics]: this new event has 84 ancestors and is cut-off event [2024-10-24 15:04:29,734 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-10-24 15:04:29,734 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-10-24 15:04:29,734 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-10-24 15:04:29,883 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][143], [37#L718-4true, Black: 193#true, 162#L708-4true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 34#L700true, Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 184#true, 226#(= |#race~y~0| 0), 144#L700-3true, Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-10-24 15:04:29,883 INFO L294 olderBase$Statistics]: this new event has 84 ancestors and is cut-off event [2024-10-24 15:04:29,883 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-10-24 15:04:29,883 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-10-24 15:04:29,883 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-10-24 15:04:29,937 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][143], [37#L718-4true, 162#L708-4true, Black: 193#true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 47#L700true, 186#true, 173#L708-3true, 219#true, 69#L700-3true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 226#(= |#race~y~0| 0), 184#true, Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-10-24 15:04:29,937 INFO L294 olderBase$Statistics]: this new event has 84 ancestors and is cut-off event [2024-10-24 15:04:29,937 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-10-24 15:04:29,937 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-10-24 15:04:29,937 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-10-24 15:04:29,997 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][143], [37#L718-4true, Black: 193#true, 162#L708-4true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 40#L700-4true, 34#L700true, Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-10-24 15:04:29,997 INFO L294 olderBase$Statistics]: this new event has 85 ancestors and is cut-off event [2024-10-24 15:04:29,997 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-10-24 15:04:29,997 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-10-24 15:04:29,997 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-10-24 15:04:30,013 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][143], [37#L718-4true, 162#L708-4true, Black: 193#true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 34#L700true, 35#writerErr4ASSERT_VIOLATIONDATA_RACEtrue, Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-10-24 15:04:30,013 INFO L294 olderBase$Statistics]: this new event has 85 ancestors and is cut-off event [2024-10-24 15:04:30,013 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-10-24 15:04:30,013 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-10-24 15:04:30,013 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-10-24 15:04:30,104 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][143], [37#L718-4true, Black: 193#true, 162#L708-4true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 34#L700true, 27#L701true, Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-10-24 15:04:30,104 INFO L294 olderBase$Statistics]: this new event has 86 ancestors and is cut-off event [2024-10-24 15:04:30,105 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-10-24 15:04:30,105 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-10-24 15:04:30,105 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-10-24 15:04:30,542 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([358] L708-2-->L708-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][143], [Black: 193#true, 162#L708-4true, Black: 200#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~w~0|), 186#true, 66#L719-1true, 173#L708-3true, 219#true, Black: 206#(and (= ~r~0 0) (= ~w~0 0)), Black: 207#(and (<= 1 ~r~0) (= ~w~0 0)), 34#L700true, Black: 216#(= |#race~y~0| |readerThread1of1ForFork1_#t~nondet8#1|), 184#true, 226#(= |#race~y~0| 0), Black: 221#(= |writerThread1of1ForFork2_#t~nondet6#1| |#race~x~0|), Black: 190#(= |writerThread1of1ForFork3_#t~nondet6#1| |#race~x~0|)]) [2024-10-24 15:04:30,542 INFO L294 olderBase$Statistics]: this new event has 91 ancestors and is cut-off event [2024-10-24 15:04:30,542 INFO L297 olderBase$Statistics]: existing Event has 91 ancestors and is cut-off event [2024-10-24 15:04:30,542 INFO L297 olderBase$Statistics]: existing Event has 91 ancestors and is cut-off event [2024-10-24 15:04:30,542 INFO L297 olderBase$Statistics]: existing Event has 91 ancestors and is cut-off event [2024-10-24 15:04:31,186 INFO L124 PetriNetUnfolderBase]: 9119/53734 cut-off events. [2024-10-24 15:04:31,186 INFO L125 PetriNetUnfolderBase]: For 30731/34489 co-relation queries the response was YES. [2024-10-24 15:04:31,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98737 conditions, 53734 events. 9119/53734 cut-off events. For 30731/34489 co-relation queries the response was YES. Maximal size of possible extension queue 2443. Compared 906941 event pairs, 1957 based on Foata normal form. 247/45329 useless extension candidates. Maximal degree in co-relation 98726. Up to 7235 conditions per place. [2024-10-24 15:04:31,627 INFO L140 encePairwiseOnDemand]: 166/174 looper letters, 39 selfloop transitions, 7 changer transitions 0/209 dead transitions. [2024-10-24 15:04:31,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 209 transitions, 875 flow [2024-10-24 15:04:31,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:04:31,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:04:31,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2024-10-24 15:04:31,629 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8505747126436781 [2024-10-24 15:04:31,629 INFO L175 Difference]: Start difference. First operand has 170 places, 191 transitions, 705 flow. Second operand 3 states and 444 transitions. [2024-10-24 15:04:31,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 209 transitions, 875 flow [2024-10-24 15:04:31,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 209 transitions, 835 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-10-24 15:04:31,732 INFO L231 Difference]: Finished difference. Result has 172 places, 197 transitions, 727 flow [2024-10-24 15:04:31,732 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=727, PETRI_PLACES=172, PETRI_TRANSITIONS=197} [2024-10-24 15:04:31,733 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -2 predicate places. [2024-10-24 15:04:31,733 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 197 transitions, 727 flow [2024-10-24 15:04:31,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 15:04:31,734 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:04:31,734 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] [2024-10-24 15:04:31,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 15:04:31,734 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting writerErr4ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-24 15:04:31,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:04:31,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1425409966, now seen corresponding path program 1 times [2024-10-24 15:04:31,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:04:31,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068018646] [2024-10-24 15:04:31,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:04:31,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:04:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:04:31,751 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 15:04:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:04:31,785 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 15:04:31,785 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 15:04:31,786 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2024-10-24 15:04:31,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2024-10-24 15:04:31,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2024-10-24 15:04:31,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2024-10-24 15:04:31,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2024-10-24 15:04:31,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2024-10-24 15:04:31,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2024-10-24 15:04:31,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2024-10-24 15:04:31,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2024-10-24 15:04:31,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2024-10-24 15:04:31,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 46 remaining) [2024-10-24 15:04:31,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 46 remaining) [2024-10-24 15:04:31,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 46 remaining) [2024-10-24 15:04:31,793 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 46 remaining) [2024-10-24 15:04:31,793 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2024-10-24 15:04:31,793 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2024-10-24 15:04:31,793 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2024-10-24 15:04:31,793 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2024-10-24 15:04:31,793 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2024-10-24 15:04:31,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2024-10-24 15:04:31,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2024-10-24 15:04:31,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2024-10-24 15:04:31,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2024-10-24 15:04:31,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2024-10-24 15:04:31,795 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2024-10-24 15:04:31,795 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2024-10-24 15:04:31,795 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2024-10-24 15:04:31,795 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2024-10-24 15:04:31,795 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2024-10-24 15:04:31,795 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2024-10-24 15:04:31,795 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2024-10-24 15:04:31,795 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2024-10-24 15:04:31,796 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2024-10-24 15:04:31,796 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2024-10-24 15:04:31,796 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2024-10-24 15:04:31,796 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2024-10-24 15:04:31,796 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2024-10-24 15:04:31,796 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2024-10-24 15:04:31,796 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2024-10-24 15:04:31,796 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2024-10-24 15:04:31,796 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2024-10-24 15:04:31,796 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2024-10-24 15:04:31,797 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2024-10-24 15:04:31,797 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2024-10-24 15:04:31,797 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2024-10-24 15:04:31,797 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2024-10-24 15:04:31,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 15:04:31,797 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:04:31,851 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 15:04:31,852 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 15:04:31,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:04:31 BasicIcfg [2024-10-24 15:04:31,861 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 15:04:31,861 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 15:04:31,861 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 15:04:31,861 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 15:04:31,862 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:04:04" (3/4) ... [2024-10-24 15:04:31,867 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 15:04:31,868 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 15:04:31,869 INFO L158 Benchmark]: Toolchain (without parser) took 28753.05ms. Allocated memory was 159.4MB in the beginning and 12.6GB in the end (delta: 12.5GB). Free memory was 103.5MB in the beginning and 10.8GB in the end (delta: -10.7GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-10-24 15:04:31,872 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 159.4MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:04:31,874 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.43ms. Allocated memory is still 159.4MB. Free memory was 103.1MB in the beginning and 81.4MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-24 15:04:31,874 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.67ms. Allocated memory is still 159.4MB. Free memory was 81.2MB in the beginning and 79.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:04:31,875 INFO L158 Benchmark]: Boogie Preprocessor took 42.98ms. Allocated memory is still 159.4MB. Free memory was 79.1MB in the beginning and 77.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:04:31,878 INFO L158 Benchmark]: RCFGBuilder took 584.31ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 77.5MB in the beginning and 168.0MB in the end (delta: -90.5MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-10-24 15:04:31,878 INFO L158 Benchmark]: TraceAbstraction took 27523.81ms. Allocated memory was 209.7MB in the beginning and 12.6GB in the end (delta: 12.4GB). Free memory was 167.0MB in the beginning and 10.8GB in the end (delta: -10.6GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-10-24 15:04:31,878 INFO L158 Benchmark]: Witness Printer took 7.45ms. Allocated memory is still 12.6GB. Free memory is still 10.8GB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:04:31,880 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 159.4MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 537.43ms. Allocated memory is still 159.4MB. Free memory was 103.1MB in the beginning and 81.4MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.67ms. Allocated memory is still 159.4MB. Free memory was 81.2MB in the beginning and 79.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.98ms. Allocated memory is still 159.4MB. Free memory was 79.1MB in the beginning and 77.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 584.31ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 77.5MB in the beginning and 168.0MB in the end (delta: -90.5MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * TraceAbstraction took 27523.81ms. Allocated memory was 209.7MB in the beginning and 12.6GB in the end (delta: 12.4GB). Free memory was 167.0MB in the beginning and 10.8GB in the end (delta: -10.6GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. * Witness Printer took 7.45ms. Allocated memory is still 12.6GB. Free memory is still 10.8GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 700]: Data race detected Data race detected The following path leads to a data race: [L688] 0 int w=0, r=0, x, y; VAL [r=0, w=0, x=0, y=0] [L714] 0 pthread_t t1, t2, t3, t4; VAL [r=0, w=0, x=0, y=0] [L715] FCALL, FORK 0 pthread_create(&t1, 0, writer, 0) VAL [r=0, t1=-1, w=0, x=0, y=0] [L716] FCALL, FORK 0 pthread_create(&t2, 0, reader, 0) VAL [r=0, t1=-1, t2=0, w=0, x=0, y=0] [L704] 2 int l; VAL [\old(arg)={0:0}, arg={0:0}, r=0, w=0, x=0, y=0] [L698] CALL 1 __VERIFIER_atomic_take_write_lock() [L690] EXPR 1 w==0 [L690] EXPR 1 w==0 && r==0 [L690] EXPR 1 r==0 [L690] EXPR 1 w==0 && r==0 [L690] CALL 1 assume_abort_if_not(w==0 && r==0) [L3] COND FALSE 1 !(!cond) [L690] RET 1 assume_abort_if_not(w==0 && r==0) [L691] 1 w = 1 [L698] RET 1 __VERIFIER_atomic_take_write_lock() [L699] 1 x = 3 VAL [\old(arg)={0:0}, arg={0:0}, r=0, w=1, x=3, y=0] [L700] 1 w = 0 VAL [\old(arg)={0:0}, arg={0:0}, r=0, w=0, x=3, y=0] [L705] CALL 2 __VERIFIER_atomic_take_read_lock() [L694] EXPR 2 w==0 [L694] CALL 2 assume_abort_if_not(w==0) [L3] COND FALSE 2 !(!cond) [L694] RET 2 assume_abort_if_not(w==0) [L695] EXPR 2 r+1 [L695] 2 r = r+1 [L705] RET 2 __VERIFIER_atomic_take_read_lock() [L700] 1 w = 0 VAL [\old(arg)={0:0}, arg={0:0}, r=1, w=0, x=3, y=0] Now there is a data race on ~w~0 between C: w==0 [694] and C: w = 0 [700] - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 236 locations, 46 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: 27.3s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 26.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 255 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 420 IncrementalHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 56 mSDtfsCounter, 420 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=727occurred in iteration=9, InterpolantAutomatonStates: 28, 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, 0.6s InterpolantComputationTime, 335 NumberOfCodeBlocks, 335 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 450 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-24 15:04:31,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE