./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/stack-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 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/stack-1.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 a5e93db72222dd521789305cbf7823ac91f269c62c97020d54f95f5ba14d3fd2 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:24:23,744 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:24:23,814 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:24:23,827 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:24:23,828 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:24:23,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:24:23,860 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:24:23,860 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:24:23,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:24:23,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:24:23,864 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:24:23,864 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:24:23,864 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:24:23,865 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:24:23,865 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:24:23,869 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:24:23,869 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:24:23,870 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:24:23,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:24:23,870 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:24:23,870 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:24:23,871 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:24:23,871 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:24:23,871 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:24:23,872 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:24:23,872 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:24:23,872 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:24:23,872 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:24:23,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:24:23,873 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:24:23,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:24:23,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:24:23,874 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:24:23,874 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:24:23,875 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:24:23,876 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:24:23,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:24:23,876 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:24:23,876 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:24:23,877 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:24:23,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:24:23,878 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5e93db72222dd521789305cbf7823ac91f269c62c97020d54f95f5ba14d3fd2 [2024-11-20 13:24:24,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:24:24,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:24:24,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:24:24,256 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:24:24,256 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:24:24,257 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/stack-1.i [2024-11-20 13:24:25,634 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:24:25,934 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:24:25,935 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/stack-1.i [2024-11-20 13:24:25,955 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03a7da256/d297034e5ac048c795d6f247326613ee/FLAGc987eeeee [2024-11-20 13:24:26,208 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03a7da256/d297034e5ac048c795d6f247326613ee [2024-11-20 13:24:26,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:24:26,211 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:24:26,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:24:26,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:24:26,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:24:26,219 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:24:26" (1/1) ... [2024-11-20 13:24:26,220 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b24c12a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:26, skipping insertion in model container [2024-11-20 13:24:26,220 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:24:26" (1/1) ... [2024-11-20 13:24:26,272 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:24:26,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:24:26,821 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:24:26,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:24:26,954 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:24:26,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:26 WrapperNode [2024-11-20 13:24:26,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:24:26,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:24:26,956 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:24:26,956 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:24:26,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:26" (1/1) ... [2024-11-20 13:24:27,015 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:26" (1/1) ... [2024-11-20 13:24:27,060 INFO L138 Inliner]: procedures = 277, calls = 36, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 188 [2024-11-20 13:24:27,061 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:24:27,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:24:27,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:24:27,062 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:24:27,071 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:26" (1/1) ... [2024-11-20 13:24:27,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:26" (1/1) ... [2024-11-20 13:24:27,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:26" (1/1) ... [2024-11-20 13:24:27,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:26" (1/1) ... [2024-11-20 13:24:27,097 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:26" (1/1) ... [2024-11-20 13:24:27,104 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:26" (1/1) ... [2024-11-20 13:24:27,106 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:26" (1/1) ... [2024-11-20 13:24:27,112 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:26" (1/1) ... [2024-11-20 13:24:27,116 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:24:27,119 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:24:27,119 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:24:27,119 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:24:27,120 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:26" (1/1) ... [2024-11-20 13:24:27,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:24:27,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:24:27,154 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) [2024-11-20 13:24:27,163 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 [2024-11-20 13:24:27,210 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-20 13:24:27,211 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-20 13:24:27,211 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-20 13:24:27,211 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-20 13:24:27,212 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:24:27,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:24:27,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:24:27,212 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:24:27,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:24:27,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:24:27,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:24:27,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:24:27,214 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:24:27,375 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:24:27,378 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:24:27,738 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:24:27,738 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:24:27,776 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:24:27,777 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 13:24:27,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:24:27 BoogieIcfgContainer [2024-11-20 13:24:27,777 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:24:27,781 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:24:27,782 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:24:27,786 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:24:27,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:24:26" (1/3) ... [2024-11-20 13:24:27,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604d1e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:24:27, skipping insertion in model container [2024-11-20 13:24:27,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:26" (2/3) ... [2024-11-20 13:24:27,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604d1e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:24:27, skipping insertion in model container [2024-11-20 13:24:27,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:24:27" (3/3) ... [2024-11-20 13:24:27,789 INFO L112 eAbstractionObserver]: Analyzing ICFG stack-1.i [2024-11-20 13:24:27,809 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:24:27,809 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-11-20 13:24:27,809 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:24:27,920 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 13:24:27,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 205 places, 210 transitions, 434 flow [2024-11-20 13:24:28,055 INFO L124 PetriNetUnfolderBase]: 12/208 cut-off events. [2024-11-20 13:24:28,055 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 13:24:28,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 208 events. 12/208 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 498 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 173. Up to 3 conditions per place. [2024-11-20 13:24:28,068 INFO L82 GeneralOperation]: Start removeDead. Operand has 205 places, 210 transitions, 434 flow [2024-11-20 13:24:28,076 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 203 transitions, 415 flow [2024-11-20 13:24:28,090 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:24:28,098 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;@1b7276c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:24:28,099 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-20 13:24:28,117 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:24:28,117 INFO L124 PetriNetUnfolderBase]: 2/67 cut-off events. [2024-11-20 13:24:28,117 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:24:28,118 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:28,118 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:28,119 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-11-20 13:24:28,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:28,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1775855262, now seen corresponding path program 1 times [2024-11-20 13:24:28,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:28,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493232253] [2024-11-20 13:24:28,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:28,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:28,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:28,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:28,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493232253] [2024-11-20 13:24:28,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493232253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:28,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:28,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:24:28,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560316290] [2024-11-20 13:24:28,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:28,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:24:28,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:28,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:24:28,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:24:28,518 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 210 [2024-11-20 13:24:28,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 203 transitions, 415 flow. Second operand has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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) [2024-11-20 13:24:28,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:28,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 210 [2024-11-20 13:24:28,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:28,953 INFO L124 PetriNetUnfolderBase]: 270/2320 cut-off events. [2024-11-20 13:24:28,954 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2024-11-20 13:24:28,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2928 conditions, 2320 events. 270/2320 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 16628 event pairs, 76 based on Foata normal form. 219/2307 useless extension candidates. Maximal degree in co-relation 2656. Up to 405 conditions per place. [2024-11-20 13:24:28,968 INFO L140 encePairwiseOnDemand]: 180/210 looper letters, 36 selfloop transitions, 16 changer transitions 0/212 dead transitions. [2024-11-20 13:24:28,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 212 transitions, 543 flow [2024-11-20 13:24:28,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:24:28,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:24:28,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 583 transitions. [2024-11-20 13:24:28,986 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9253968253968254 [2024-11-20 13:24:28,989 INFO L175 Difference]: Start difference. First operand has 198 places, 203 transitions, 415 flow. Second operand 3 states and 583 transitions. [2024-11-20 13:24:28,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 212 transitions, 543 flow [2024-11-20 13:24:28,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 212 transitions, 535 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 13:24:29,001 INFO L231 Difference]: Finished difference. Result has 193 places, 206 transitions, 526 flow [2024-11-20 13:24:29,004 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=526, PETRI_PLACES=193, PETRI_TRANSITIONS=206} [2024-11-20 13:24:29,007 INFO L277 CegarLoopForPetriNet]: 198 programPoint places, -5 predicate places. [2024-11-20 13:24:29,009 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 206 transitions, 526 flow [2024-11-20 13:24:29,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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) [2024-11-20 13:24:29,010 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:29,011 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:29,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:24:29,012 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-11-20 13:24:29,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:29,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1411018928, now seen corresponding path program 1 times [2024-11-20 13:24:29,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:29,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329434331] [2024-11-20 13:24:29,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:29,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:29,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:29,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:29,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329434331] [2024-11-20 13:24:29,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329434331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:29,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:29,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:24:29,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561276943] [2024-11-20 13:24:29,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:29,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:24:29,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:29,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:24:29,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:24:29,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 210 [2024-11-20 13:24:29,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 206 transitions, 526 flow. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 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) [2024-11-20 13:24:29,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:29,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 210 [2024-11-20 13:24:29,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:29,615 INFO L124 PetriNetUnfolderBase]: 283/2930 cut-off events. [2024-11-20 13:24:29,616 INFO L125 PetriNetUnfolderBase]: For 124/124 co-relation queries the response was YES. [2024-11-20 13:24:29,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3775 conditions, 2930 events. 283/2930 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22323 event pairs, 90 based on Foata normal form. 21/2696 useless extension candidates. Maximal degree in co-relation 3508. Up to 340 conditions per place. [2024-11-20 13:24:29,631 INFO L140 encePairwiseOnDemand]: 205/210 looper letters, 18 selfloop transitions, 3 changer transitions 0/213 dead transitions. [2024-11-20 13:24:29,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 213 transitions, 585 flow [2024-11-20 13:24:29,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:24:29,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:24:29,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 581 transitions. [2024-11-20 13:24:29,634 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9222222222222223 [2024-11-20 13:24:29,634 INFO L175 Difference]: Start difference. First operand has 193 places, 206 transitions, 526 flow. Second operand 3 states and 581 transitions. [2024-11-20 13:24:29,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 213 transitions, 585 flow [2024-11-20 13:24:29,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 213 transitions, 553 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:24:29,645 INFO L231 Difference]: Finished difference. Result has 194 places, 207 transitions, 511 flow [2024-11-20 13:24:29,647 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=511, PETRI_PLACES=194, PETRI_TRANSITIONS=207} [2024-11-20 13:24:29,648 INFO L277 CegarLoopForPetriNet]: 198 programPoint places, -4 predicate places. [2024-11-20 13:24:29,648 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 207 transitions, 511 flow [2024-11-20 13:24:29,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 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) [2024-11-20 13:24:29,649 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:29,649 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:29,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:24:29,649 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-11-20 13:24:29,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:29,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1663630154, now seen corresponding path program 1 times [2024-11-20 13:24:29,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:29,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612862293] [2024-11-20 13:24:29,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:29,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:30,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:30,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:30,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612862293] [2024-11-20 13:24:30,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612862293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:30,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:30,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:30,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000359777] [2024-11-20 13:24:30,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:30,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:30,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:30,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:30,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:30,476 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 210 [2024-11-20 13:24:30,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 207 transitions, 511 flow. Second operand has 6 states, 6 states have (on average 177.83333333333334) internal successors, (1067), 6 states have internal predecessors, (1067), 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) [2024-11-20 13:24:30,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:30,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 210 [2024-11-20 13:24:30,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:31,197 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([594] L1009-3-->L1014-2: Formula: (and (= |v_t2Thread1of1ForFork0_#t~ret48#1_1| 0) (= |v_#pthreadsMutex_31| (store |v_#pthreadsMutex_32| |v_~#m~0.base_22| (store (select |v_#pthreadsMutex_32| |v_~#m~0.base_22|) |v_~#m~0.offset_22| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_32|, ~#m~0.base=|v_~#m~0.base_22|, ~#m~0.offset=|v_~#m~0.offset_22|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_31|, ~#m~0.base=|v_~#m~0.base_22|, t2Thread1of1ForFork0_#t~ret48#1=|v_t2Thread1of1ForFork0_#t~ret48#1_1|, ~#m~0.offset=|v_~#m~0.offset_22|} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork0_#t~ret48#1][72], [5#L1014-2true, 9#L960-1true, Black: 208#true, 15#L1023-4true, Black: 215#(= ~top~0 0), 213#true, 206#true, 217#true]) [2024-11-20 13:24:31,198 INFO L294 olderBase$Statistics]: this new event has 233 ancestors and is cut-off event [2024-11-20 13:24:31,198 INFO L297 olderBase$Statistics]: existing Event has 125 ancestors and is cut-off event [2024-11-20 13:24:31,199 INFO L297 olderBase$Statistics]: existing Event has 136 ancestors and is cut-off event [2024-11-20 13:24:31,199 INFO L297 olderBase$Statistics]: existing Event has 164 ancestors and is cut-off event [2024-11-20 13:24:31,199 INFO L124 PetriNetUnfolderBase]: 556/4140 cut-off events. [2024-11-20 13:24:31,199 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-20 13:24:31,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5718 conditions, 4140 events. 556/4140 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 33428 event pairs, 210 based on Foata normal form. 0/3798 useless extension candidates. Maximal degree in co-relation 5247. Up to 768 conditions per place. [2024-11-20 13:24:31,221 INFO L140 encePairwiseOnDemand]: 199/210 looper letters, 35 selfloop transitions, 22 changer transitions 0/240 dead transitions. [2024-11-20 13:24:31,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 240 transitions, 699 flow [2024-11-20 13:24:31,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:31,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:31,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1114 transitions. [2024-11-20 13:24:31,225 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8841269841269841 [2024-11-20 13:24:31,225 INFO L175 Difference]: Start difference. First operand has 194 places, 207 transitions, 511 flow. Second operand 6 states and 1114 transitions. [2024-11-20 13:24:31,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 240 transitions, 699 flow [2024-11-20 13:24:31,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 240 transitions, 696 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:24:31,233 INFO L231 Difference]: Finished difference. Result has 203 places, 228 transitions, 658 flow [2024-11-20 13:24:31,233 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=658, PETRI_PLACES=203, PETRI_TRANSITIONS=228} [2024-11-20 13:24:31,234 INFO L277 CegarLoopForPetriNet]: 198 programPoint places, 5 predicate places. [2024-11-20 13:24:31,235 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 228 transitions, 658 flow [2024-11-20 13:24:31,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 177.83333333333334) internal successors, (1067), 6 states have internal predecessors, (1067), 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) [2024-11-20 13:24:31,236 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:31,236 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:31,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:24:31,237 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-11-20 13:24:31,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:31,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1641342052, now seen corresponding path program 1 times [2024-11-20 13:24:31,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:31,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399479044] [2024-11-20 13:24:31,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:31,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:31,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:31,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:31,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399479044] [2024-11-20 13:24:31,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399479044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:31,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:31,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:24:31,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585633466] [2024-11-20 13:24:31,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:31,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:24:31,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:31,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:24:31,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:24:31,351 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 210 [2024-11-20 13:24:31,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 228 transitions, 658 flow. Second operand has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 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) [2024-11-20 13:24:31,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:31,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 210 [2024-11-20 13:24:31,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:31,876 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([594] L1009-3-->L1014-2: Formula: (and (= |v_t2Thread1of1ForFork0_#t~ret48#1_1| 0) (= |v_#pthreadsMutex_31| (store |v_#pthreadsMutex_32| |v_~#m~0.base_22| (store (select |v_#pthreadsMutex_32| |v_~#m~0.base_22|) |v_~#m~0.offset_22| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_32|, ~#m~0.base=|v_~#m~0.base_22|, ~#m~0.offset=|v_~#m~0.offset_22|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_31|, ~#m~0.base=|v_~#m~0.base_22|, t2Thread1of1ForFork0_#t~ret48#1=|v_t2Thread1of1ForFork0_#t~ret48#1_1|, ~#m~0.offset=|v_~#m~0.offset_22|} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork0_#t~ret48#1][72], [Black: 221#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 2)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), 5#L1014-2true, Black: 219#(= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|), Black: 222#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 2)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 3)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), Black: 208#true, 15#L1023-4true, Black: 215#(= ~top~0 0), 206#true, 228#true, 217#true, Black: 220#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), 178#L999-2true]) [2024-11-20 13:24:31,877 INFO L294 olderBase$Statistics]: this new event has 213 ancestors and is cut-off event [2024-11-20 13:24:31,877 INFO L297 olderBase$Statistics]: existing Event has 105 ancestors and is cut-off event [2024-11-20 13:24:31,877 INFO L297 olderBase$Statistics]: existing Event has 105 ancestors and is cut-off event [2024-11-20 13:24:31,877 INFO L297 olderBase$Statistics]: existing Event has 139 ancestors and is cut-off event [2024-11-20 13:24:31,890 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([594] L1009-3-->L1014-2: Formula: (and (= |v_t2Thread1of1ForFork0_#t~ret48#1_1| 0) (= |v_#pthreadsMutex_31| (store |v_#pthreadsMutex_32| |v_~#m~0.base_22| (store (select |v_#pthreadsMutex_32| |v_~#m~0.base_22|) |v_~#m~0.offset_22| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_32|, ~#m~0.base=|v_~#m~0.base_22|, ~#m~0.offset=|v_~#m~0.offset_22|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_31|, ~#m~0.base=|v_~#m~0.base_22|, t2Thread1of1ForFork0_#t~ret48#1=|v_t2Thread1of1ForFork0_#t~ret48#1_1|, ~#m~0.offset=|v_~#m~0.offset_22|} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork0_#t~ret48#1][72], [Black: 221#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 2)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), 5#L1014-2true, Black: 219#(= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|), Black: 222#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 2)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 3)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), Black: 208#true, 15#L1023-4true, Black: 215#(= ~top~0 0), 21#L994-3true, 206#true, 228#true, 217#true, Black: 220#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|))]) [2024-11-20 13:24:31,891 INFO L294 olderBase$Statistics]: this new event has 219 ancestors and is cut-off event [2024-11-20 13:24:31,891 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2024-11-20 13:24:31,891 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2024-11-20 13:24:31,891 INFO L297 olderBase$Statistics]: existing Event has 145 ancestors and is cut-off event [2024-11-20 13:24:31,900 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([594] L1009-3-->L1014-2: Formula: (and (= |v_t2Thread1of1ForFork0_#t~ret48#1_1| 0) (= |v_#pthreadsMutex_31| (store |v_#pthreadsMutex_32| |v_~#m~0.base_22| (store (select |v_#pthreadsMutex_32| |v_~#m~0.base_22|) |v_~#m~0.offset_22| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_32|, ~#m~0.base=|v_~#m~0.base_22|, ~#m~0.offset=|v_~#m~0.offset_22|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_31|, ~#m~0.base=|v_~#m~0.base_22|, t2Thread1of1ForFork0_#t~ret48#1=|v_t2Thread1of1ForFork0_#t~ret48#1_1|, ~#m~0.offset=|v_~#m~0.offset_22|} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork0_#t~ret48#1][72], [Black: 221#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 2)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), 5#L1014-2true, Black: 219#(= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|), Black: 222#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 2)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 3)) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|)), 26#L1024-1true, Black: 208#true, Black: 215#(= ~top~0 0), 206#true, 228#true, 217#true, Black: 220#(and (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4))) |t1Thread1of1ForFork1_push_#t~nondet37#1|) (= (select (select |#race| |t1Thread1of1ForFork1_push_~stack#1.base|) (+ |t1Thread1of1ForFork1_push_~stack#1.offset| (* |t1Thread1of1ForFork1_push_#t~ret36#1| 4) 1)) |t1Thread1of1ForFork1_push_#t~nondet37#1|))]) [2024-11-20 13:24:31,901 INFO L294 olderBase$Statistics]: this new event has 223 ancestors and is cut-off event [2024-11-20 13:24:31,901 INFO L297 olderBase$Statistics]: existing Event has 115 ancestors and is cut-off event [2024-11-20 13:24:31,901 INFO L297 olderBase$Statistics]: existing Event has 115 ancestors and is cut-off event [2024-11-20 13:24:31,901 INFO L297 olderBase$Statistics]: existing Event has 149 ancestors and is cut-off event [2024-11-20 13:24:31,908 INFO L124 PetriNetUnfolderBase]: 507/4090 cut-off events. [2024-11-20 13:24:31,909 INFO L125 PetriNetUnfolderBase]: For 387/451 co-relation queries the response was YES. [2024-11-20 13:24:31,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5982 conditions, 4090 events. 507/4090 cut-off events. For 387/451 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 32369 event pairs, 174 based on Foata normal form. 15/3785 useless extension candidates. Maximal degree in co-relation 3427. Up to 768 conditions per place. [2024-11-20 13:24:31,933 INFO L140 encePairwiseOnDemand]: 201/210 looper letters, 32 selfloop transitions, 13 changer transitions 0/242 dead transitions. [2024-11-20 13:24:31,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 242 transitions, 796 flow [2024-11-20 13:24:31,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:24:31,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:24:31,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 567 transitions. [2024-11-20 13:24:31,936 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9 [2024-11-20 13:24:31,936 INFO L175 Difference]: Start difference. First operand has 203 places, 228 transitions, 658 flow. Second operand 3 states and 567 transitions. [2024-11-20 13:24:31,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 242 transitions, 796 flow [2024-11-20 13:24:31,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 242 transitions, 796 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:24:31,943 INFO L231 Difference]: Finished difference. Result has 207 places, 239 transitions, 774 flow [2024-11-20 13:24:31,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=774, PETRI_PLACES=207, PETRI_TRANSITIONS=239} [2024-11-20 13:24:31,945 INFO L277 CegarLoopForPetriNet]: 198 programPoint places, 9 predicate places. [2024-11-20 13:24:31,945 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 239 transitions, 774 flow [2024-11-20 13:24:31,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 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) [2024-11-20 13:24:31,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:31,946 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:31,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:24:31,947 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-11-20 13:24:31,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:31,948 INFO L85 PathProgramCache]: Analyzing trace with hash -65747723, now seen corresponding path program 1 times [2024-11-20 13:24:31,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:31,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897816347] [2024-11-20 13:24:31,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:31,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:32,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:32,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:32,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897816347] [2024-11-20 13:24:32,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897816347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:32,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:32,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:24:32,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379303399] [2024-11-20 13:24:32,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:32,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:24:32,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:32,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:24:32,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:24:32,115 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 210 [2024-11-20 13:24:32,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 239 transitions, 774 flow. Second operand has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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) [2024-11-20 13:24:32,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:32,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 210 [2024-11-20 13:24:32,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:32,214 INFO L124 PetriNetUnfolderBase]: 32/699 cut-off events. [2024-11-20 13:24:32,215 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-11-20 13:24:32,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 966 conditions, 699 events. 32/699 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3017 event pairs, 5 based on Foata normal form. 10/676 useless extension candidates. Maximal degree in co-relation 576. Up to 65 conditions per place. [2024-11-20 13:24:32,218 INFO L140 encePairwiseOnDemand]: 206/210 looper letters, 7 selfloop transitions, 4 changer transitions 0/186 dead transitions. [2024-11-20 13:24:32,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 186 transitions, 501 flow [2024-11-20 13:24:32,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:24:32,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:24:32,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 586 transitions. [2024-11-20 13:24:32,221 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9301587301587302 [2024-11-20 13:24:32,221 INFO L175 Difference]: Start difference. First operand has 207 places, 239 transitions, 774 flow. Second operand 3 states and 586 transitions. [2024-11-20 13:24:32,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 186 transitions, 501 flow [2024-11-20 13:24:32,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 186 transitions, 427 flow, removed 23 selfloop flow, removed 14 redundant places. [2024-11-20 13:24:32,228 INFO L231 Difference]: Finished difference. Result has 186 places, 184 transitions, 406 flow [2024-11-20 13:24:32,228 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=406, PETRI_PLACES=186, PETRI_TRANSITIONS=184} [2024-11-20 13:24:32,230 INFO L277 CegarLoopForPetriNet]: 198 programPoint places, -12 predicate places. [2024-11-20 13:24:32,231 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 184 transitions, 406 flow [2024-11-20 13:24:32,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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) [2024-11-20 13:24:32,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:32,233 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:32,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:24:32,233 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-11-20 13:24:32,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:32,234 INFO L85 PathProgramCache]: Analyzing trace with hash 596379989, now seen corresponding path program 1 times [2024-11-20 13:24:32,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:32,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231538823] [2024-11-20 13:24:32,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:32,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:32,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:32,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:32,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231538823] [2024-11-20 13:24:32,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231538823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:32,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:32,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:24:32,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6755718] [2024-11-20 13:24:32,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:32,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:24:32,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:32,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:24:32,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:24:32,358 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 210 [2024-11-20 13:24:32,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 184 transitions, 406 flow. Second operand has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 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) [2024-11-20 13:24:32,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:32,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 210 [2024-11-20 13:24:32,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:32,432 INFO L124 PetriNetUnfolderBase]: 50/685 cut-off events. [2024-11-20 13:24:32,432 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-11-20 13:24:32,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 908 conditions, 685 events. 50/685 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3183 event pairs, 28 based on Foata normal form. 0/642 useless extension candidates. Maximal degree in co-relation 343. Up to 117 conditions per place. [2024-11-20 13:24:32,436 INFO L140 encePairwiseOnDemand]: 207/210 looper letters, 22 selfloop transitions, 2 changer transitions 5/184 dead transitions. [2024-11-20 13:24:32,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 184 transitions, 455 flow [2024-11-20 13:24:32,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:24:32,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:24:32,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2024-11-20 13:24:32,438 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8841269841269841 [2024-11-20 13:24:32,438 INFO L175 Difference]: Start difference. First operand has 186 places, 184 transitions, 406 flow. Second operand 3 states and 557 transitions. [2024-11-20 13:24:32,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 184 transitions, 455 flow [2024-11-20 13:24:32,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 184 transitions, 451 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:24:32,441 INFO L231 Difference]: Finished difference. Result has 186 places, 178 transitions, 394 flow [2024-11-20 13:24:32,442 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=394, PETRI_PLACES=186, PETRI_TRANSITIONS=178} [2024-11-20 13:24:32,443 INFO L277 CegarLoopForPetriNet]: 198 programPoint places, -12 predicate places. [2024-11-20 13:24:32,443 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 178 transitions, 394 flow [2024-11-20 13:24:32,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 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) [2024-11-20 13:24:32,444 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:32,444 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:32,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:24:32,444 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 22 more)] === [2024-11-20 13:24:32,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:32,445 INFO L85 PathProgramCache]: Analyzing trace with hash -524286136, now seen corresponding path program 1 times [2024-11-20 13:24:32,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:32,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272681090] [2024-11-20 13:24:32,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:32,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:32,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:32,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:32,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272681090] [2024-11-20 13:24:32,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272681090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:32,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:32,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:32,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717754603] [2024-11-20 13:24:32,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:32,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:32,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:32,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:32,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:33,018 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 210 [2024-11-20 13:24:33,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 178 transitions, 394 flow. Second operand has 6 states, 6 states have (on average 180.83333333333334) internal successors, (1085), 6 states have internal predecessors, (1085), 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) [2024-11-20 13:24:33,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:33,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 210 [2024-11-20 13:24:33,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:33,110 INFO L124 PetriNetUnfolderBase]: 51/672 cut-off events. [2024-11-20 13:24:33,111 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-11-20 13:24:33,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 878 conditions, 672 events. 51/672 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3043 event pairs, 26 based on Foata normal form. 0/653 useless extension candidates. Maximal degree in co-relation 772. Up to 105 conditions per place. [2024-11-20 13:24:33,113 INFO L140 encePairwiseOnDemand]: 204/210 looper letters, 0 selfloop transitions, 0 changer transitions 181/181 dead transitions. [2024-11-20 13:24:33,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 181 transitions, 454 flow [2024-11-20 13:24:33,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:33,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:33,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1094 transitions. [2024-11-20 13:24:33,117 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8682539682539683 [2024-11-20 13:24:33,117 INFO L175 Difference]: Start difference. First operand has 186 places, 178 transitions, 394 flow. Second operand 6 states and 1094 transitions. [2024-11-20 13:24:33,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 181 transitions, 454 flow [2024-11-20 13:24:33,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 181 transitions, 450 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:24:33,130 INFO L231 Difference]: Finished difference. Result has 183 places, 0 transitions, 0 flow [2024-11-20 13:24:33,134 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=183, PETRI_TRANSITIONS=0} [2024-11-20 13:24:33,135 INFO L277 CegarLoopForPetriNet]: 198 programPoint places, -15 predicate places. [2024-11-20 13:24:33,135 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 0 transitions, 0 flow [2024-11-20 13:24:33,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.83333333333334) internal successors, (1085), 6 states have internal predecessors, (1085), 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) [2024-11-20 13:24:33,143 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2024-11-20 13:24:33,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 24 remaining) [2024-11-20 13:24:33,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2024-11-20 13:24:33,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2024-11-20 13:24:33,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2024-11-20 13:24:33,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2024-11-20 13:24:33,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2024-11-20 13:24:33,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2024-11-20 13:24:33,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2024-11-20 13:24:33,163 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2024-11-20 13:24:33,163 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2024-11-20 13:24:33,163 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2024-11-20 13:24:33,163 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2024-11-20 13:24:33,167 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2024-11-20 13:24:33,167 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2024-11-20 13:24:33,168 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2024-11-20 13:24:33,168 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2024-11-20 13:24:33,168 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2024-11-20 13:24:33,168 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2024-11-20 13:24:33,168 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2024-11-20 13:24:33,168 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2024-11-20 13:24:33,168 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2024-11-20 13:24:33,169 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2024-11-20 13:24:33,169 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2024-11-20 13:24:33,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:24:33,170 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:33,180 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 13:24:33,184 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 13:24:33,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:24:33 BasicIcfg [2024-11-20 13:24:33,200 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 13:24:33,201 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 13:24:33,201 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 13:24:33,201 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 13:24:33,205 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:24:27" (3/4) ... [2024-11-20 13:24:33,211 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 13:24:33,215 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2024-11-20 13:24:33,218 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2024-11-20 13:24:33,221 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-20 13:24:33,221 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-20 13:24:33,222 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-20 13:24:33,222 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-20 13:24:33,330 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 13:24:33,330 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 13:24:33,330 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 13:24:33,332 INFO L158 Benchmark]: Toolchain (without parser) took 7119.71ms. Allocated memory was 182.5MB in the beginning and 287.3MB in the end (delta: 104.9MB). Free memory was 125.1MB in the beginning and 205.5MB in the end (delta: -80.4MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2024-11-20 13:24:33,332 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 182.5MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 13:24:33,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 742.20ms. Allocated memory is still 182.5MB. Free memory was 124.6MB in the beginning and 92.1MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-20 13:24:33,333 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.96ms. Allocated memory is still 182.5MB. Free memory was 92.1MB in the beginning and 88.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 13:24:33,333 INFO L158 Benchmark]: Boogie Preprocessor took 55.39ms. Allocated memory is still 182.5MB. Free memory was 88.9MB in the beginning and 86.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 13:24:33,333 INFO L158 Benchmark]: RCFGBuilder took 658.46ms. Allocated memory was 182.5MB in the beginning and 226.5MB in the end (delta: 44.0MB). Free memory was 86.8MB in the beginning and 182.1MB in the end (delta: -95.3MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2024-11-20 13:24:33,333 INFO L158 Benchmark]: TraceAbstraction took 5419.01ms. Allocated memory was 226.5MB in the beginning and 287.3MB in the end (delta: 60.8MB). Free memory was 182.1MB in the beginning and 209.7MB in the end (delta: -27.6MB). Peak memory consumption was 181.0MB. Max. memory is 16.1GB. [2024-11-20 13:24:33,334 INFO L158 Benchmark]: Witness Printer took 129.67ms. Allocated memory is still 287.3MB. Free memory was 209.7MB in the beginning and 205.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 13:24:33,336 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 182.5MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 742.20ms. Allocated memory is still 182.5MB. Free memory was 124.6MB in the beginning and 92.1MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.96ms. Allocated memory is still 182.5MB. Free memory was 92.1MB in the beginning and 88.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.39ms. Allocated memory is still 182.5MB. Free memory was 88.9MB in the beginning and 86.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 658.46ms. Allocated memory was 182.5MB in the beginning and 226.5MB in the end (delta: 44.0MB). Free memory was 86.8MB in the beginning and 182.1MB in the end (delta: -95.3MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5419.01ms. Allocated memory was 226.5MB in the beginning and 287.3MB in the end (delta: 60.8MB). Free memory was 182.1MB in the beginning and 209.7MB in the end (delta: -27.6MB). Peak memory consumption was 181.0MB. Max. memory is 16.1GB. * Witness Printer took 129.67ms. Allocated memory is still 287.3MB. Free memory was 209.7MB in the beginning and 205.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 962]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 954]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 969]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 946]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 946]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1009]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 976]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 950]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 950]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 954]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 984]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 354 locations, 24 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: 5.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 286 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 474 IncrementalHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 27 mSDtfsCounter, 474 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=774occurred in iteration=4, InterpolantAutomatonStates: 27, 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, 1.7s InterpolantComputationTime, 596 NumberOfCodeBlocks, 596 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 589 ConstructedInterpolants, 0 QuantifiedInterpolants, 939 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-20 13:24:33,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE