./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_24-sound_lock_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/goblint-regression/28-race_reach_24-sound_lock_racing.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 1eea0d699fc30cae440905f5eeea19b8e9e5d0b5cc249e9ffded8d356549b279 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:55:57,683 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:55:57,745 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:55:57,752 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:55:57,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:55:57,775 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:55:57,775 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:55:57,775 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:55:57,776 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:55:57,776 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:55:57,777 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:55:57,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:55:57,777 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:55:57,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:55:57,778 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:55:57,779 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:55:57,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:55:57,779 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:55:57,779 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:55:57,780 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:55:57,780 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:55:57,780 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:55:57,781 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:55:57,781 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:55:57,781 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:55:57,781 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:55:57,781 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:55:57,782 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:55:57,782 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:55:57,782 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:55:57,782 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:55:57,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:55:57,783 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:55:57,783 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:55:57,783 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:55:57,783 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:55:57,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:55:57,784 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:55:57,784 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:55:57,785 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:55:57,785 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:55:57,786 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1eea0d699fc30cae440905f5eeea19b8e9e5d0b5cc249e9ffded8d356549b279 [2024-11-09 06:55:58,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:55:58,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:55:58,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:55:58,158 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:55:58,162 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:55:58,163 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_24-sound_lock_racing.i [2024-11-09 06:55:59,668 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:56:00,024 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:56:00,024 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_24-sound_lock_racing.i [2024-11-09 06:56:00,043 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f666047ed/81cd43bf66a24d369490f59866616d04/FLAG59ee77a30 [2024-11-09 06:56:00,271 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f666047ed/81cd43bf66a24d369490f59866616d04 [2024-11-09 06:56:00,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:56:00,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:56:00,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:56:00,282 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:56:00,288 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:56:00,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:56:00" (1/1) ... [2024-11-09 06:56:00,297 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2019eabd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:00, skipping insertion in model container [2024-11-09 06:56:00,297 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:56:00" (1/1) ... [2024-11-09 06:56:00,353 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:56:00,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:56:00,783 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:56:00,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:56:00,982 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:56:00,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:00 WrapperNode [2024-11-09 06:56:00,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:56:00,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:56:00,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:56:00,988 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:56:01,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:00" (1/1) ... [2024-11-09 06:56:01,027 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:00" (1/1) ... [2024-11-09 06:56:01,059 INFO L138 Inliner]: procedures = 171, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 105 [2024-11-09 06:56:01,063 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:56:01,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:56:01,064 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:56:01,064 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:56:01,076 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:00" (1/1) ... [2024-11-09 06:56:01,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:00" (1/1) ... [2024-11-09 06:56:01,079 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:00" (1/1) ... [2024-11-09 06:56:01,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:00" (1/1) ... [2024-11-09 06:56:01,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:00" (1/1) ... [2024-11-09 06:56:01,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:00" (1/1) ... [2024-11-09 06:56:01,111 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:00" (1/1) ... [2024-11-09 06:56:01,112 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:00" (1/1) ... [2024-11-09 06:56:01,115 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:56:01,120 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:56:01,120 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:56:01,120 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:56:01,121 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:00" (1/1) ... [2024-11-09 06:56:01,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:56:01,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:56:01,177 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) [2024-11-09 06:56:01,180 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 [2024-11-09 06:56:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:56:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:56:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 06:56:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:56:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:56:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 06:56:01,219 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 06:56:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:56:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:56:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 06:56:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:56:01,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:56:01,222 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:56:01,322 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:56:01,324 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:56:01,644 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:56:01,644 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:56:01,671 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:56:01,671 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-09 06:56:01,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:56:01 BoogieIcfgContainer [2024-11-09 06:56:01,671 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:56:01,673 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:56:01,673 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:56:01,675 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:56:01,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:56:00" (1/3) ... [2024-11-09 06:56:01,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196c9681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:56:01, skipping insertion in model container [2024-11-09 06:56:01,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:00" (2/3) ... [2024-11-09 06:56:01,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196c9681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:56:01, skipping insertion in model container [2024-11-09 06:56:01,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:56:01" (3/3) ... [2024-11-09 06:56:01,677 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_24-sound_lock_racing.i [2024-11-09 06:56:01,689 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:56:01,689 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-09 06:56:01,689 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:56:01,766 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 06:56:01,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 155 transitions, 317 flow [2024-11-09 06:56:01,891 INFO L124 PetriNetUnfolderBase]: 20/214 cut-off events. [2024-11-09 06:56:01,891 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:56:01,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 214 events. 20/214 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 621 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 109. Up to 4 conditions per place. [2024-11-09 06:56:01,905 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 155 transitions, 317 flow [2024-11-09 06:56:01,911 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 155 transitions, 317 flow [2024-11-09 06:56:01,924 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:56:01,930 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;@29323249, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:56:01,930 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-09 06:56:01,946 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:56:01,946 INFO L124 PetriNetUnfolderBase]: 3/61 cut-off events. [2024-11-09 06:56:01,946 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:56:01,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:01,947 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:01,950 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 06:56:01,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:01,956 INFO L85 PathProgramCache]: Analyzing trace with hash -778459379, now seen corresponding path program 1 times [2024-11-09 06:56:01,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:01,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843009746] [2024-11-09 06:56:01,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:01,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:02,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:02,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:02,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843009746] [2024-11-09 06:56:02,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843009746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:02,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:02,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:56:02,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648675764] [2024-11-09 06:56:02,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:02,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:02,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:02,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:02,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:02,355 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 155 [2024-11-09 06:56:02,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 155 transitions, 317 flow. Second operand has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 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) [2024-11-09 06:56:02,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:02,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 155 [2024-11-09 06:56:02,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:02,525 INFO L124 PetriNetUnfolderBase]: 49/571 cut-off events. [2024-11-09 06:56:02,526 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-09 06:56:02,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 571 events. 49/571 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2733 event pairs, 35 based on Foata normal form. 63/577 useless extension candidates. Maximal degree in co-relation 607. Up to 108 conditions per place. [2024-11-09 06:56:02,531 INFO L140 encePairwiseOnDemand]: 140/155 looper letters, 22 selfloop transitions, 2 changer transitions 0/147 dead transitions. [2024-11-09 06:56:02,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 147 transitions, 349 flow [2024-11-09 06:56:02,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:02,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:02,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 416 transitions. [2024-11-09 06:56:02,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8946236559139785 [2024-11-09 06:56:02,550 INFO L175 Difference]: Start difference. First operand has 144 places, 155 transitions, 317 flow. Second operand 3 states and 416 transitions. [2024-11-09 06:56:02,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 147 transitions, 349 flow [2024-11-09 06:56:02,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 147 transitions, 349 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:56:02,558 INFO L231 Difference]: Finished difference. Result has 145 places, 141 transitions, 297 flow [2024-11-09 06:56:02,567 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=297, PETRI_PLACES=145, PETRI_TRANSITIONS=141} [2024-11-09 06:56:02,570 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, 1 predicate places. [2024-11-09 06:56:02,570 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 141 transitions, 297 flow [2024-11-09 06:56:02,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 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) [2024-11-09 06:56:02,570 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:02,570 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:02,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:56:02,571 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 06:56:02,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:02,574 INFO L85 PathProgramCache]: Analyzing trace with hash 235746507, now seen corresponding path program 1 times [2024-11-09 06:56:02,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:02,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535604098] [2024-11-09 06:56:02,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:02,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:03,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:03,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:03,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535604098] [2024-11-09 06:56:03,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535604098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:03,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:03,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:56:03,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843190086] [2024-11-09 06:56:03,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:03,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:56:03,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:03,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:56:03,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:56:03,196 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 155 [2024-11-09 06:56:03,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 141 transitions, 297 flow. Second operand has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 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) [2024-11-09 06:56:03,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:03,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 155 [2024-11-09 06:56:03,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:03,356 INFO L124 PetriNetUnfolderBase]: 109/671 cut-off events. [2024-11-09 06:56:03,356 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-09 06:56:03,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 671 events. 109/671 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3789 event pairs, 7 based on Foata normal form. 0/618 useless extension candidates. Maximal degree in co-relation 859. Up to 181 conditions per place. [2024-11-09 06:56:03,362 INFO L140 encePairwiseOnDemand]: 149/155 looper letters, 48 selfloop transitions, 5 changer transitions 0/164 dead transitions. [2024-11-09 06:56:03,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 164 transitions, 449 flow [2024-11-09 06:56:03,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:56:03,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:56:03,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 726 transitions. [2024-11-09 06:56:03,368 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7806451612903226 [2024-11-09 06:56:03,368 INFO L175 Difference]: Start difference. First operand has 145 places, 141 transitions, 297 flow. Second operand 6 states and 726 transitions. [2024-11-09 06:56:03,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 164 transitions, 449 flow [2024-11-09 06:56:03,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 164 transitions, 445 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:56:03,373 INFO L231 Difference]: Finished difference. Result has 147 places, 140 transitions, 301 flow [2024-11-09 06:56:03,375 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=301, PETRI_PLACES=147, PETRI_TRANSITIONS=140} [2024-11-09 06:56:03,375 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, 3 predicate places. [2024-11-09 06:56:03,375 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 140 transitions, 301 flow [2024-11-09 06:56:03,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 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) [2024-11-09 06:56:03,376 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:03,376 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] [2024-11-09 06:56:03,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:56:03,377 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 06:56:03,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:03,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1801427432, now seen corresponding path program 1 times [2024-11-09 06:56:03,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:03,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941624359] [2024-11-09 06:56:03,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:03,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:03,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:03,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:03,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941624359] [2024-11-09 06:56:03,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941624359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:03,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:03,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:03,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40569931] [2024-11-09 06:56:03,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:03,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:03,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:03,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:03,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:03,451 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 155 [2024-11-09 06:56:03,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 140 transitions, 301 flow. Second operand has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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) [2024-11-09 06:56:03,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:03,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 155 [2024-11-09 06:56:03,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:03,582 INFO L124 PetriNetUnfolderBase]: 92/803 cut-off events. [2024-11-09 06:56:03,582 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-09 06:56:03,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1039 conditions, 803 events. 92/803 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4684 event pairs, 30 based on Foata normal form. 0/733 useless extension candidates. Maximal degree in co-relation 962. Up to 125 conditions per place. [2024-11-09 06:56:03,586 INFO L140 encePairwiseOnDemand]: 146/155 looper letters, 30 selfloop transitions, 6 changer transitions 0/153 dead transitions. [2024-11-09 06:56:03,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 153 transitions, 402 flow [2024-11-09 06:56:03,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:03,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:03,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2024-11-09 06:56:03,589 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8516129032258064 [2024-11-09 06:56:03,589 INFO L175 Difference]: Start difference. First operand has 147 places, 140 transitions, 301 flow. Second operand 3 states and 396 transitions. [2024-11-09 06:56:03,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 153 transitions, 402 flow [2024-11-09 06:56:03,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 153 transitions, 392 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 06:56:03,593 INFO L231 Difference]: Finished difference. Result has 144 places, 142 transitions, 329 flow [2024-11-09 06:56:03,594 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=329, PETRI_PLACES=144, PETRI_TRANSITIONS=142} [2024-11-09 06:56:03,594 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, 0 predicate places. [2024-11-09 06:56:03,595 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 142 transitions, 329 flow [2024-11-09 06:56:03,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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) [2024-11-09 06:56:03,596 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:03,596 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] [2024-11-09 06:56:03,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:56:03,596 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 06:56:03,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:03,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1816965716, now seen corresponding path program 1 times [2024-11-09 06:56:03,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:03,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595639871] [2024-11-09 06:56:03,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:03,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:03,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:03,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:03,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595639871] [2024-11-09 06:56:03,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595639871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:03,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:03,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:03,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251602878] [2024-11-09 06:56:03,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:03,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:03,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:03,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:03,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:03,656 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 155 [2024-11-09 06:56:03,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 142 transitions, 329 flow. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 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) [2024-11-09 06:56:03,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:03,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 155 [2024-11-09 06:56:03,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:03,757 INFO L124 PetriNetUnfolderBase]: 95/805 cut-off events. [2024-11-09 06:56:03,757 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-09 06:56:03,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1139 conditions, 805 events. 95/805 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4778 event pairs, 60 based on Foata normal form. 0/736 useless extension candidates. Maximal degree in co-relation 1062. Up to 189 conditions per place. [2024-11-09 06:56:03,761 INFO L140 encePairwiseOnDemand]: 150/155 looper letters, 27 selfloop transitions, 4 changer transitions 0/149 dead transitions. [2024-11-09 06:56:03,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 149 transitions, 409 flow [2024-11-09 06:56:03,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:03,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:03,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2024-11-09 06:56:03,763 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.843010752688172 [2024-11-09 06:56:03,763 INFO L175 Difference]: Start difference. First operand has 144 places, 142 transitions, 329 flow. Second operand 3 states and 392 transitions. [2024-11-09 06:56:03,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 149 transitions, 409 flow [2024-11-09 06:56:03,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 149 transitions, 395 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:56:03,768 INFO L231 Difference]: Finished difference. Result has 146 places, 145 transitions, 349 flow [2024-11-09 06:56:03,768 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=349, PETRI_PLACES=146, PETRI_TRANSITIONS=145} [2024-11-09 06:56:03,769 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, 2 predicate places. [2024-11-09 06:56:03,770 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 145 transitions, 349 flow [2024-11-09 06:56:03,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 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) [2024-11-09 06:56:03,770 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:03,770 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:03,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:56:03,772 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 06:56:03,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:03,773 INFO L85 PathProgramCache]: Analyzing trace with hash 517944477, now seen corresponding path program 1 times [2024-11-09 06:56:03,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:03,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078047241] [2024-11-09 06:56:03,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:03,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:56:03,800 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:56:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:56:03,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 06:56:03,836 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:56:03,837 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-09 06:56:03,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-09 06:56:03,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-09 06:56:03,839 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-09 06:56:03,839 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-09 06:56:03,839 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-09 06:56:03,839 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-09 06:56:03,839 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-09 06:56:03,839 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-09 06:56:03,839 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-09 06:56:03,840 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-09 06:56:03,840 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-09 06:56:03,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:56:03,840 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-09 06:56:03,843 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 06:56:03,843 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 06:56:03,873 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 06:56:03,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 204 transitions, 424 flow [2024-11-09 06:56:03,901 INFO L124 PetriNetUnfolderBase]: 35/350 cut-off events. [2024-11-09 06:56:03,901 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 06:56:03,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 350 events. 35/350 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1173 event pairs, 0 based on Foata normal form. 0/293 useless extension candidates. Maximal degree in co-relation 216. Up to 8 conditions per place. [2024-11-09 06:56:03,904 INFO L82 GeneralOperation]: Start removeDead. Operand has 188 places, 204 transitions, 424 flow [2024-11-09 06:56:03,907 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 204 transitions, 424 flow [2024-11-09 06:56:03,908 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:56:03,909 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;@29323249, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:56:03,909 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-09 06:56:03,915 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:56:03,915 INFO L124 PetriNetUnfolderBase]: 3/61 cut-off events. [2024-11-09 06:56:03,915 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:56:03,915 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:03,916 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:03,916 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:56:03,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:03,917 INFO L85 PathProgramCache]: Analyzing trace with hash 598020493, now seen corresponding path program 1 times [2024-11-09 06:56:03,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:03,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642826335] [2024-11-09 06:56:03,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:03,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:03,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:03,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:03,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642826335] [2024-11-09 06:56:03,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642826335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:03,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:03,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:56:03,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483943802] [2024-11-09 06:56:03,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:03,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:03,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:03,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:03,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:03,976 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 204 [2024-11-09 06:56:03,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 204 transitions, 424 flow. Second operand has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 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) [2024-11-09 06:56:03,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:03,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 204 [2024-11-09 06:56:03,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:04,399 INFO L124 PetriNetUnfolderBase]: 789/4313 cut-off events. [2024-11-09 06:56:04,400 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-09 06:56:04,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5666 conditions, 4313 events. 789/4313 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 41133 event pairs, 348 based on Foata normal form. 749/4675 useless extension candidates. Maximal degree in co-relation 721. Up to 1303 conditions per place. [2024-11-09 06:56:04,419 INFO L140 encePairwiseOnDemand]: 183/204 looper letters, 31 selfloop transitions, 2 changer transitions 0/191 dead transitions. [2024-11-09 06:56:04,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 191 transitions, 464 flow [2024-11-09 06:56:04,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:04,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:04,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 536 transitions. [2024-11-09 06:56:04,421 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8758169934640523 [2024-11-09 06:56:04,421 INFO L175 Difference]: Start difference. First operand has 188 places, 204 transitions, 424 flow. Second operand 3 states and 536 transitions. [2024-11-09 06:56:04,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 191 transitions, 464 flow [2024-11-09 06:56:04,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 191 transitions, 464 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:56:04,425 INFO L231 Difference]: Finished difference. Result has 189 places, 185 transitions, 396 flow [2024-11-09 06:56:04,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=189, PETRI_TRANSITIONS=185} [2024-11-09 06:56:04,426 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, 1 predicate places. [2024-11-09 06:56:04,426 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 185 transitions, 396 flow [2024-11-09 06:56:04,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 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) [2024-11-09 06:56:04,427 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:04,427 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:04,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:56:04,427 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:56:04,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:04,427 INFO L85 PathProgramCache]: Analyzing trace with hash 182982859, now seen corresponding path program 1 times [2024-11-09 06:56:04,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:04,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566704764] [2024-11-09 06:56:04,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:04,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:04,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:04,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:04,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566704764] [2024-11-09 06:56:04,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566704764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:04,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:04,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:56:04,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751953169] [2024-11-09 06:56:04,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:04,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:56:04,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:04,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:56:04,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:56:04,751 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 204 [2024-11-09 06:56:04,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 185 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 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) [2024-11-09 06:56:04,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:04,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 204 [2024-11-09 06:56:04,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:05,462 INFO L124 PetriNetUnfolderBase]: 1719/5688 cut-off events. [2024-11-09 06:56:05,462 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES. [2024-11-09 06:56:05,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8700 conditions, 5688 events. 1719/5688 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 54074 event pairs, 222 based on Foata normal form. 0/5295 useless extension candidates. Maximal degree in co-relation 1233. Up to 2015 conditions per place. [2024-11-09 06:56:05,491 INFO L140 encePairwiseOnDemand]: 198/204 looper letters, 80 selfloop transitions, 6 changer transitions 0/232 dead transitions. [2024-11-09 06:56:05,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 232 transitions, 662 flow [2024-11-09 06:56:05,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:56:05,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:56:05,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 968 transitions. [2024-11-09 06:56:05,493 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7908496732026143 [2024-11-09 06:56:05,493 INFO L175 Difference]: Start difference. First operand has 189 places, 185 transitions, 396 flow. Second operand 6 states and 968 transitions. [2024-11-09 06:56:05,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 232 transitions, 662 flow [2024-11-09 06:56:05,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 232 transitions, 660 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:56:05,497 INFO L231 Difference]: Finished difference. Result has 192 places, 184 transitions, 404 flow [2024-11-09 06:56:05,498 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=404, PETRI_PLACES=192, PETRI_TRANSITIONS=184} [2024-11-09 06:56:05,499 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, 4 predicate places. [2024-11-09 06:56:05,499 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 184 transitions, 404 flow [2024-11-09 06:56:05,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 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) [2024-11-09 06:56:05,500 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:05,500 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] [2024-11-09 06:56:05,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:56:05,500 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:56:05,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:05,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1648112099, now seen corresponding path program 1 times [2024-11-09 06:56:05,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:05,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499007884] [2024-11-09 06:56:05,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:05,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:05,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:05,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:05,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499007884] [2024-11-09 06:56:05,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499007884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:05,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:05,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:05,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024203502] [2024-11-09 06:56:05,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:05,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:05,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:05,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:05,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:05,563 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 204 [2024-11-09 06:56:05,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 184 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 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) [2024-11-09 06:56:05,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:05,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 204 [2024-11-09 06:56:05,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:07,169 INFO L124 PetriNetUnfolderBase]: 3894/14611 cut-off events. [2024-11-09 06:56:07,169 INFO L125 PetriNetUnfolderBase]: For 238/238 co-relation queries the response was YES. [2024-11-09 06:56:07,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21162 conditions, 14611 events. 3894/14611 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 164005 event pairs, 1530 based on Foata normal form. 0/13069 useless extension candidates. Maximal degree in co-relation 20044. Up to 3516 conditions per place. [2024-11-09 06:56:07,239 INFO L140 encePairwiseOnDemand]: 185/204 looper letters, 58 selfloop transitions, 14 changer transitions 0/217 dead transitions. [2024-11-09 06:56:07,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 217 transitions, 625 flow [2024-11-09 06:56:07,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:07,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:07,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 515 transitions. [2024-11-09 06:56:07,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8415032679738562 [2024-11-09 06:56:07,241 INFO L175 Difference]: Start difference. First operand has 192 places, 184 transitions, 404 flow. Second operand 3 states and 515 transitions. [2024-11-09 06:56:07,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 217 transitions, 625 flow [2024-11-09 06:56:07,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 217 transitions, 613 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 06:56:07,244 INFO L231 Difference]: Finished difference. Result has 191 places, 198 transitions, 514 flow [2024-11-09 06:56:07,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=514, PETRI_PLACES=191, PETRI_TRANSITIONS=198} [2024-11-09 06:56:07,245 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, 3 predicate places. [2024-11-09 06:56:07,246 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 198 transitions, 514 flow [2024-11-09 06:56:07,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 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) [2024-11-09 06:56:07,246 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:07,246 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] [2024-11-09 06:56:07,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:56:07,247 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:56:07,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:07,247 INFO L85 PathProgramCache]: Analyzing trace with hash -368572323, now seen corresponding path program 1 times [2024-11-09 06:56:07,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:07,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654281432] [2024-11-09 06:56:07,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:07,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:07,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:07,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:07,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654281432] [2024-11-09 06:56:07,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654281432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:07,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:07,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:07,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415924128] [2024-11-09 06:56:07,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:07,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:07,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:07,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:07,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:07,326 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 204 [2024-11-09 06:56:07,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 198 transitions, 514 flow. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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) [2024-11-09 06:56:07,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:07,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 204 [2024-11-09 06:56:07,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:08,911 INFO L124 PetriNetUnfolderBase]: 4021/16464 cut-off events. [2024-11-09 06:56:08,911 INFO L125 PetriNetUnfolderBase]: For 4445/4626 co-relation queries the response was YES. [2024-11-09 06:56:08,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27152 conditions, 16464 events. 4021/16464 cut-off events. For 4445/4626 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 193929 event pairs, 2411 based on Foata normal form. 46/14965 useless extension candidates. Maximal degree in co-relation 13739. Up to 5498 conditions per place. [2024-11-09 06:56:09,172 INFO L140 encePairwiseOnDemand]: 195/204 looper letters, 52 selfloop transitions, 14 changer transitions 0/222 dead transitions. [2024-11-09 06:56:09,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 222 transitions, 732 flow [2024-11-09 06:56:09,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:09,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:09,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 509 transitions. [2024-11-09 06:56:09,176 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8316993464052288 [2024-11-09 06:56:09,176 INFO L175 Difference]: Start difference. First operand has 191 places, 198 transitions, 514 flow. Second operand 3 states and 509 transitions. [2024-11-09 06:56:09,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 222 transitions, 732 flow [2024-11-09 06:56:09,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 222 transitions, 694 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:56:09,187 INFO L231 Difference]: Finished difference. Result has 193 places, 210 transitions, 612 flow [2024-11-09 06:56:09,188 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=612, PETRI_PLACES=193, PETRI_TRANSITIONS=210} [2024-11-09 06:56:09,189 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, 5 predicate places. [2024-11-09 06:56:09,189 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 210 transitions, 612 flow [2024-11-09 06:56:09,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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) [2024-11-09 06:56:09,190 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:09,190 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] [2024-11-09 06:56:09,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:56:09,190 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:56:09,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:09,191 INFO L85 PathProgramCache]: Analyzing trace with hash 556786939, now seen corresponding path program 1 times [2024-11-09 06:56:09,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:09,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211555706] [2024-11-09 06:56:09,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:09,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:09,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:09,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:09,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211555706] [2024-11-09 06:56:09,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211555706] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:09,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228511102] [2024-11-09 06:56:09,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:09,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:09,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:56:09,269 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:56:09,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:56:09,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:09,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:56:09,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:09,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:09,438 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:09,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:09,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228511102] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:56:09,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:56:09,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 06:56:09,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530031863] [2024-11-09 06:56:09,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:56:09,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:56:09,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:09,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:56:09,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:56:09,566 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 204 [2024-11-09 06:56:09,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 210 transitions, 612 flow. Second operand has 10 states, 10 states have (on average 158.5) internal successors, (1585), 10 states have internal predecessors, (1585), 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) [2024-11-09 06:56:09,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:09,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 204 [2024-11-09 06:56:09,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:10,014 INFO L124 PetriNetUnfolderBase]: 806/4161 cut-off events. [2024-11-09 06:56:10,015 INFO L125 PetriNetUnfolderBase]: For 628/679 co-relation queries the response was YES. [2024-11-09 06:56:10,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6432 conditions, 4161 events. 806/4161 cut-off events. For 628/679 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 39610 event pairs, 47 based on Foata normal form. 110/3965 useless extension candidates. Maximal degree in co-relation 3055. Up to 470 conditions per place. [2024-11-09 06:56:10,032 INFO L140 encePairwiseOnDemand]: 199/204 looper letters, 72 selfloop transitions, 7 changer transitions 0/217 dead transitions. [2024-11-09 06:56:10,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 217 transitions, 738 flow [2024-11-09 06:56:10,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:56:10,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:56:10,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1485 transitions. [2024-11-09 06:56:10,036 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8088235294117647 [2024-11-09 06:56:10,036 INFO L175 Difference]: Start difference. First operand has 193 places, 210 transitions, 612 flow. Second operand 9 states and 1485 transitions. [2024-11-09 06:56:10,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 217 transitions, 738 flow [2024-11-09 06:56:10,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 217 transitions, 718 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:56:10,041 INFO L231 Difference]: Finished difference. Result has 156 places, 161 transitions, 462 flow [2024-11-09 06:56:10,041 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=462, PETRI_PLACES=156, PETRI_TRANSITIONS=161} [2024-11-09 06:56:10,042 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, -32 predicate places. [2024-11-09 06:56:10,042 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 161 transitions, 462 flow [2024-11-09 06:56:10,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 158.5) internal successors, (1585), 10 states have internal predecessors, (1585), 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) [2024-11-09 06:56:10,043 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:10,044 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:10,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:56:10,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 06:56:10,246 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:56:10,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:10,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1630048700, now seen corresponding path program 1 times [2024-11-09 06:56:10,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:10,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456053661] [2024-11-09 06:56:10,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:10,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:10,322 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 06:56:10,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:10,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456053661] [2024-11-09 06:56:10,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456053661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:10,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:10,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:10,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419419856] [2024-11-09 06:56:10,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:10,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:10,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:10,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:10,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:10,376 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 204 [2024-11-09 06:56:10,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 161 transitions, 462 flow. Second operand has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 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) [2024-11-09 06:56:10,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:10,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 204 [2024-11-09 06:56:10,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:10,497 INFO L124 PetriNetUnfolderBase]: 261/1302 cut-off events. [2024-11-09 06:56:10,497 INFO L125 PetriNetUnfolderBase]: For 448/469 co-relation queries the response was YES. [2024-11-09 06:56:10,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2347 conditions, 1302 events. 261/1302 cut-off events. For 448/469 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 8676 event pairs, 132 based on Foata normal form. 7/1216 useless extension candidates. Maximal degree in co-relation 2262. Up to 459 conditions per place. [2024-11-09 06:56:10,505 INFO L140 encePairwiseOnDemand]: 196/204 looper letters, 42 selfloop transitions, 12 changer transitions 0/175 dead transitions. [2024-11-09 06:56:10,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 175 transitions, 614 flow [2024-11-09 06:56:10,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:10,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:10,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 495 transitions. [2024-11-09 06:56:10,507 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8088235294117647 [2024-11-09 06:56:10,507 INFO L175 Difference]: Start difference. First operand has 156 places, 161 transitions, 462 flow. Second operand 3 states and 495 transitions. [2024-11-09 06:56:10,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 175 transitions, 614 flow [2024-11-09 06:56:10,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 175 transitions, 599 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-09 06:56:10,510 INFO L231 Difference]: Finished difference. Result has 155 places, 169 transitions, 545 flow [2024-11-09 06:56:10,510 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=545, PETRI_PLACES=155, PETRI_TRANSITIONS=169} [2024-11-09 06:56:10,511 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, -33 predicate places. [2024-11-09 06:56:10,511 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 169 transitions, 545 flow [2024-11-09 06:56:10,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 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) [2024-11-09 06:56:10,511 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:10,511 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] [2024-11-09 06:56:10,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:56:10,512 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:56:10,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:10,512 INFO L85 PathProgramCache]: Analyzing trace with hash -617759989, now seen corresponding path program 1 times [2024-11-09 06:56:10,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:10,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454497746] [2024-11-09 06:56:10,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:10,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:10,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:10,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:10,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454497746] [2024-11-09 06:56:10,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454497746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:10,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:10,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:10,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99875474] [2024-11-09 06:56:10,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:10,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:10,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:10,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:10,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:10,573 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 204 [2024-11-09 06:56:10,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 169 transitions, 545 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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) [2024-11-09 06:56:10,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:10,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 204 [2024-11-09 06:56:10,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:10,699 INFO L124 PetriNetUnfolderBase]: 292/1374 cut-off events. [2024-11-09 06:56:10,699 INFO L125 PetriNetUnfolderBase]: For 1085/1120 co-relation queries the response was YES. [2024-11-09 06:56:10,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2801 conditions, 1374 events. 292/1374 cut-off events. For 1085/1120 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9372 event pairs, 134 based on Foata normal form. 9/1306 useless extension candidates. Maximal degree in co-relation 2719. Up to 501 conditions per place. [2024-11-09 06:56:10,709 INFO L140 encePairwiseOnDemand]: 196/204 looper letters, 49 selfloop transitions, 12 changer transitions 0/184 dead transitions. [2024-11-09 06:56:10,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 184 transitions, 734 flow [2024-11-09 06:56:10,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:10,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:10,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 496 transitions. [2024-11-09 06:56:10,712 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8104575163398693 [2024-11-09 06:56:10,712 INFO L175 Difference]: Start difference. First operand has 155 places, 169 transitions, 545 flow. Second operand 3 states and 496 transitions. [2024-11-09 06:56:10,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 184 transitions, 734 flow [2024-11-09 06:56:10,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 184 transitions, 706 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:56:10,717 INFO L231 Difference]: Finished difference. Result has 157 places, 177 transitions, 631 flow [2024-11-09 06:56:10,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=521, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=631, PETRI_PLACES=157, PETRI_TRANSITIONS=177} [2024-11-09 06:56:10,717 INFO L277 CegarLoopForPetriNet]: 188 programPoint places, -31 predicate places. [2024-11-09 06:56:10,718 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 177 transitions, 631 flow [2024-11-09 06:56:10,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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) [2024-11-09 06:56:10,718 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:10,718 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:10,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 06:56:10,718 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:56:10,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:10,719 INFO L85 PathProgramCache]: Analyzing trace with hash -785800553, now seen corresponding path program 1 times [2024-11-09 06:56:10,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:10,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195965128] [2024-11-09 06:56:10,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:10,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:56:10,741 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:56:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:56:10,762 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 06:56:10,763 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:56:10,763 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-09 06:56:10,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-09 06:56:10,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-09 06:56:10,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-09 06:56:10,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-09 06:56:10,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-09 06:56:10,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2024-11-09 06:56:10,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-09 06:56:10,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-09 06:56:10,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-09 06:56:10,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-09 06:56:10,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-09 06:56:10,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-09 06:56:10,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-09 06:56:10,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-09 06:56:10,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-09 06:56:10,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:56:10,766 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:10,767 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 06:56:10,767 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-09 06:56:10,792 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 06:56:10,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 253 transitions, 533 flow [2024-11-09 06:56:10,832 INFO L124 PetriNetUnfolderBase]: 55/531 cut-off events. [2024-11-09 06:56:10,832 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-09 06:56:10,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 556 conditions, 531 events. 55/531 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1984 event pairs, 1 based on Foata normal form. 0/444 useless extension candidates. Maximal degree in co-relation 358. Up to 16 conditions per place. [2024-11-09 06:56:10,835 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 253 transitions, 533 flow [2024-11-09 06:56:10,838 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 232 places, 253 transitions, 533 flow [2024-11-09 06:56:10,839 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:56:10,839 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;@29323249, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:56:10,839 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-09 06:56:10,843 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:56:10,844 INFO L124 PetriNetUnfolderBase]: 3/61 cut-off events. [2024-11-09 06:56:10,844 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:56:10,844 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:10,844 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:10,844 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 06:56:10,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:10,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1041899757, now seen corresponding path program 1 times [2024-11-09 06:56:10,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:10,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175764053] [2024-11-09 06:56:10,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:10,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:10,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:10,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:10,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175764053] [2024-11-09 06:56:10,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175764053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:10,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:10,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:56:10,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019970428] [2024-11-09 06:56:10,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:10,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:10,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:10,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:10,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:10,890 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 253 [2024-11-09 06:56:10,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 253 transitions, 533 flow. Second operand has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 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) [2024-11-09 06:56:10,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:10,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 253 [2024-11-09 06:56:10,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:15,335 INFO L124 PetriNetUnfolderBase]: 8949/35357 cut-off events. [2024-11-09 06:56:15,335 INFO L125 PetriNetUnfolderBase]: For 937/937 co-relation queries the response was YES. [2024-11-09 06:56:15,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48595 conditions, 35357 events. 8949/35357 cut-off events. For 937/937 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 457962 event pairs, 8324 based on Foata normal form. 7648/39622 useless extension candidates. Maximal degree in co-relation 35526. Up to 12802 conditions per place. [2024-11-09 06:56:15,528 INFO L140 encePairwiseOnDemand]: 226/253 looper letters, 39 selfloop transitions, 2 changer transitions 0/234 dead transitions. [2024-11-09 06:56:15,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 234 transitions, 577 flow [2024-11-09 06:56:15,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:15,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:15,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 655 transitions. [2024-11-09 06:56:15,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8629776021080369 [2024-11-09 06:56:15,530 INFO L175 Difference]: Start difference. First operand has 232 places, 253 transitions, 533 flow. Second operand 3 states and 655 transitions. [2024-11-09 06:56:15,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 234 transitions, 577 flow [2024-11-09 06:56:15,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 234 transitions, 577 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:56:15,533 INFO L231 Difference]: Finished difference. Result has 233 places, 228 transitions, 493 flow [2024-11-09 06:56:15,534 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=493, PETRI_PLACES=233, PETRI_TRANSITIONS=228} [2024-11-09 06:56:15,534 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, 1 predicate places. [2024-11-09 06:56:15,534 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 228 transitions, 493 flow [2024-11-09 06:56:15,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 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) [2024-11-09 06:56:15,535 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:15,535 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:15,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:56:15,535 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 06:56:15,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:15,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1549201355, now seen corresponding path program 1 times [2024-11-09 06:56:15,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:15,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570719401] [2024-11-09 06:56:15,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:15,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:15,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:15,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:15,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570719401] [2024-11-09 06:56:15,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570719401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:15,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:15,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:56:15,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004452892] [2024-11-09 06:56:15,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:15,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:56:15,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:15,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:56:15,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:56:15,967 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 253 [2024-11-09 06:56:15,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 228 transitions, 493 flow. Second operand has 6 states, 6 states have (on average 183.5) internal successors, (1101), 6 states have internal predecessors, (1101), 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) [2024-11-09 06:56:15,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:15,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 253 [2024-11-09 06:56:15,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:21,550 INFO L124 PetriNetUnfolderBase]: 19556/50630 cut-off events. [2024-11-09 06:56:21,550 INFO L125 PetriNetUnfolderBase]: For 1427/1427 co-relation queries the response was YES. [2024-11-09 06:56:21,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79790 conditions, 50630 events. 19556/50630 cut-off events. For 1427/1427 co-relation queries the response was YES. Maximal size of possible extension queue 1304. Compared 609707 event pairs, 2086 based on Foata normal form. 0/47257 useless extension candidates. Maximal degree in co-relation 56847. Up to 20048 conditions per place. [2024-11-09 06:56:22,146 INFO L140 encePairwiseOnDemand]: 247/253 looper letters, 112 selfloop transitions, 6 changer transitions 0/299 dead transitions. [2024-11-09 06:56:22,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 299 transitions, 871 flow [2024-11-09 06:56:22,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:56:22,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:56:22,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1210 transitions. [2024-11-09 06:56:22,150 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7971014492753623 [2024-11-09 06:56:22,151 INFO L175 Difference]: Start difference. First operand has 233 places, 228 transitions, 493 flow. Second operand 6 states and 1210 transitions. [2024-11-09 06:56:22,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 299 transitions, 871 flow [2024-11-09 06:56:22,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 299 transitions, 869 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:56:22,154 INFO L231 Difference]: Finished difference. Result has 236 places, 227 transitions, 501 flow [2024-11-09 06:56:22,158 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=501, PETRI_PLACES=236, PETRI_TRANSITIONS=227} [2024-11-09 06:56:22,158 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, 4 predicate places. [2024-11-09 06:56:22,158 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 227 transitions, 501 flow [2024-11-09 06:56:22,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.5) internal successors, (1101), 6 states have internal predecessors, (1101), 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) [2024-11-09 06:56:22,159 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:22,159 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] [2024-11-09 06:56:22,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 06:56:22,159 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 06:56:22,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:22,160 INFO L85 PathProgramCache]: Analyzing trace with hash 552201615, now seen corresponding path program 1 times [2024-11-09 06:56:22,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:22,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779973242] [2024-11-09 06:56:22,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:22,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:22,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:22,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:22,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779973242] [2024-11-09 06:56:22,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779973242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:22,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:22,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:22,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102761977] [2024-11-09 06:56:22,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:22,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:22,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:22,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:22,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:22,219 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 253 [2024-11-09 06:56:22,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 227 transitions, 501 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2024-11-09 06:56:22,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:22,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 253 [2024-11-09 06:56:22,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand