./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.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_41-trylock_racefree.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 af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:56:07,442 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:56:07,515 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:56:07,522 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:56:07,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:56:07,545 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:56:07,546 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:56:07,547 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:56:07,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:56:07,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:56:07,549 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:56:07,550 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:56:07,550 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:56:07,552 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:56:07,553 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:56:07,553 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:56:07,553 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:56:07,557 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:56:07,557 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:56:07,558 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:56:07,558 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:56:07,558 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:56:07,559 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:56:07,559 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:56:07,559 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:56:07,560 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:56:07,560 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:56:07,560 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:56:07,560 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:56:07,561 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:56:07,561 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:56:07,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:56:07,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:56:07,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:56:07,562 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:56:07,562 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:56:07,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:56:07,563 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:56:07,563 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:56:07,563 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:56:07,564 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:56:07,565 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 [2024-11-09 06:56:07,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:56:07,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:56:07,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:56:07,901 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:56:07,901 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:56:07,902 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i [2024-11-09 06:56:09,344 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:56:09,606 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:56:09,607 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i [2024-11-09 06:56:09,627 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e9ad66a9/9fb3c0a51bf64efcb64073826dbddd15/FLAG75126cbf0 [2024-11-09 06:56:09,647 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e9ad66a9/9fb3c0a51bf64efcb64073826dbddd15 [2024-11-09 06:56:09,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:56:09,651 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:56:09,652 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:56:09,655 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:56:09,660 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:56:09,661 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:56:09" (1/1) ... [2024-11-09 06:56:09,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11206f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:09, skipping insertion in model container [2024-11-09 06:56:09,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:56:09" (1/1) ... [2024-11-09 06:56:09,707 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:56:10,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:56:10,107 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:56:10,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:56:10,191 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:56:10,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:10 WrapperNode [2024-11-09 06:56:10,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:56:10,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:56:10,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:56:10,194 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:56:10,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:10" (1/1) ... [2024-11-09 06:56:10,214 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:10" (1/1) ... [2024-11-09 06:56:10,239 INFO L138 Inliner]: procedures = 172, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2024-11-09 06:56:10,241 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:56:10,241 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:56:10,243 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:56:10,243 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:56:10,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:10" (1/1) ... [2024-11-09 06:56:10,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:10" (1/1) ... [2024-11-09 06:56:10,257 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:10" (1/1) ... [2024-11-09 06:56:10,260 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:10" (1/1) ... [2024-11-09 06:56:10,268 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:10" (1/1) ... [2024-11-09 06:56:10,272 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:10" (1/1) ... [2024-11-09 06:56:10,276 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:10" (1/1) ... [2024-11-09 06:56:10,277 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:10" (1/1) ... [2024-11-09 06:56:10,285 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:56:10,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:56:10,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:56:10,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:56:10,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:10" (1/1) ... [2024-11-09 06:56:10,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:56:10,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:56:10,340 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 06:56:10,345 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 06:56:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:56:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:56:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 06:56:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:56:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:56:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 06:56:10,399 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 06:56:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:56:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2024-11-09 06:56:10,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:56:10,400 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 06:56:10,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:56:10,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:56:10,401 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 06:56:10,521 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:56:10,524 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:56:10,787 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:56:10,787 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:56:10,830 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:56:10,831 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-09 06:56:10,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:56:10 BoogieIcfgContainer [2024-11-09 06:56:10,831 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:56:10,833 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:56:10,833 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:56:10,837 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:56:10,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:56:09" (1/3) ... [2024-11-09 06:56:10,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3696125b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:56:10, skipping insertion in model container [2024-11-09 06:56:10,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:10" (2/3) ... [2024-11-09 06:56:10,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3696125b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:56:10, skipping insertion in model container [2024-11-09 06:56:10,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:56:10" (3/3) ... [2024-11-09 06:56:10,839 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_41-trylock_racefree.i [2024-11-09 06:56:10,860 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:56:10,861 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-09 06:56:10,861 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:56:10,927 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 06:56:10,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 144 transitions, 295 flow [2024-11-09 06:56:11,043 INFO L124 PetriNetUnfolderBase]: 23/207 cut-off events. [2024-11-09 06:56:11,043 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:56:11,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 207 events. 23/207 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 659 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 113. Up to 6 conditions per place. [2024-11-09 06:56:11,053 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 144 transitions, 295 flow [2024-11-09 06:56:11,062 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 144 transitions, 295 flow [2024-11-09 06:56:11,070 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:56:11,078 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;@58f23eb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:56:11,078 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-09 06:56:11,089 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:56:11,089 INFO L124 PetriNetUnfolderBase]: 4/49 cut-off events. [2024-11-09 06:56:11,089 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:56:11,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:11,091 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] [2024-11-09 06:56:11,091 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 06:56:11,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:11,098 INFO L85 PathProgramCache]: Analyzing trace with hash -339722752, now seen corresponding path program 1 times [2024-11-09 06:56:11,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:11,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347113595] [2024-11-09 06:56:11,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:11,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:11,312 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 06:56:11,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:11,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347113595] [2024-11-09 06:56:11,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347113595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:11,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:11,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:11,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95254723] [2024-11-09 06:56:11,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:11,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:56:11,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:11,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:56:11,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:56:11,349 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 144 [2024-11-09 06:56:11,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 144 transitions, 295 flow. Second operand has 2 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 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 06:56:11,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:11,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 144 [2024-11-09 06:56:11,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:11,497 INFO L124 PetriNetUnfolderBase]: 27/367 cut-off events. [2024-11-09 06:56:11,497 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-09 06:56:11,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 367 events. 27/367 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1446 event pairs, 24 based on Foata normal form. 54/383 useless extension candidates. Maximal degree in co-relation 340. Up to 65 conditions per place. [2024-11-09 06:56:11,502 INFO L140 encePairwiseOnDemand]: 131/144 looper letters, 12 selfloop transitions, 0 changer transitions 0/129 dead transitions. [2024-11-09 06:56:11,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 129 transitions, 289 flow [2024-11-09 06:56:11,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:56:11,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 06:56:11,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 261 transitions. [2024-11-09 06:56:11,518 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.90625 [2024-11-09 06:56:11,520 INFO L175 Difference]: Start difference. First operand has 132 places, 144 transitions, 295 flow. Second operand 2 states and 261 transitions. [2024-11-09 06:56:11,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 129 transitions, 289 flow [2024-11-09 06:56:11,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 129 transitions, 289 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:56:11,527 INFO L231 Difference]: Finished difference. Result has 131 places, 129 transitions, 265 flow [2024-11-09 06:56:11,529 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=265, PETRI_PLACES=131, PETRI_TRANSITIONS=129} [2024-11-09 06:56:11,535 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, -1 predicate places. [2024-11-09 06:56:11,535 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 129 transitions, 265 flow [2024-11-09 06:56:11,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 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 06:56:11,536 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:11,536 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] [2024-11-09 06:56:11,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:56:11,537 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 06:56:11,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:11,537 INFO L85 PathProgramCache]: Analyzing trace with hash -104795701, now seen corresponding path program 1 times [2024-11-09 06:56:11,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:11,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123724856] [2024-11-09 06:56:11,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:11,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:11,726 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 06:56:11,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:11,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123724856] [2024-11-09 06:56:11,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123724856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:11,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:11,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:56:11,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121690130] [2024-11-09 06:56:11,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:11,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:11,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:11,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:11,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:11,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 144 [2024-11-09 06:56:11,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 129 transitions, 265 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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 06:56:11,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:11,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 144 [2024-11-09 06:56:11,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:11,964 INFO L124 PetriNetUnfolderBase]: 55/546 cut-off events. [2024-11-09 06:56:11,964 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-09 06:56:11,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 668 conditions, 546 events. 55/546 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2704 event pairs, 0 based on Foata normal form. 1/490 useless extension candidates. Maximal degree in co-relation 664. Up to 108 conditions per place. [2024-11-09 06:56:11,972 INFO L140 encePairwiseOnDemand]: 141/144 looper letters, 22 selfloop transitions, 2 changer transitions 0/135 dead transitions. [2024-11-09 06:56:11,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 135 transitions, 325 flow [2024-11-09 06:56:11,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:11,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:11,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2024-11-09 06:56:11,978 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8356481481481481 [2024-11-09 06:56:11,979 INFO L175 Difference]: Start difference. First operand has 131 places, 129 transitions, 265 flow. Second operand 3 states and 361 transitions. [2024-11-09 06:56:11,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 135 transitions, 325 flow [2024-11-09 06:56:11,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 135 transitions, 325 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:56:11,985 INFO L231 Difference]: Finished difference. Result has 134 places, 129 transitions, 273 flow [2024-11-09 06:56:11,986 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=134, PETRI_TRANSITIONS=129} [2024-11-09 06:56:11,987 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 2 predicate places. [2024-11-09 06:56:11,987 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 129 transitions, 273 flow [2024-11-09 06:56:11,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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 06:56:11,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:11,988 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] [2024-11-09 06:56:11,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:56:11,989 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 06:56:11,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:11,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1760864711, now seen corresponding path program 1 times [2024-11-09 06:56:11,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:11,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097440380] [2024-11-09 06:56:11,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:11,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:12,541 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 06:56:12,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:12,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097440380] [2024-11-09 06:56:12,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097440380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:12,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:12,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:56:12,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751141632] [2024-11-09 06:56:12,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:12,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:56:12,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:12,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:56:12,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:56:12,704 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 144 [2024-11-09 06:56:12,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 129 transitions, 273 flow. Second operand has 6 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 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 06:56:12,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:12,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 144 [2024-11-09 06:56:12,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:12,905 INFO L124 PetriNetUnfolderBase]: 115/660 cut-off events. [2024-11-09 06:56:12,905 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-09 06:56:12,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 948 conditions, 660 events. 115/660 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3757 event pairs, 12 based on Foata normal form. 0/603 useless extension candidates. Maximal degree in co-relation 942. Up to 181 conditions per place. [2024-11-09 06:56:12,911 INFO L140 encePairwiseOnDemand]: 138/144 looper letters, 48 selfloop transitions, 5 changer transitions 0/152 dead transitions. [2024-11-09 06:56:12,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 152 transitions, 425 flow [2024-11-09 06:56:12,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:56:12,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:56:12,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 654 transitions. [2024-11-09 06:56:12,917 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7569444444444444 [2024-11-09 06:56:12,917 INFO L175 Difference]: Start difference. First operand has 134 places, 129 transitions, 273 flow. Second operand 6 states and 654 transitions. [2024-11-09 06:56:12,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 152 transitions, 425 flow [2024-11-09 06:56:12,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 152 transitions, 421 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:56:12,922 INFO L231 Difference]: Finished difference. Result has 136 places, 128 transitions, 277 flow [2024-11-09 06:56:12,923 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=277, PETRI_PLACES=136, PETRI_TRANSITIONS=128} [2024-11-09 06:56:12,924 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 4 predicate places. [2024-11-09 06:56:12,924 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 128 transitions, 277 flow [2024-11-09 06:56:12,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 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 06:56:12,925 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:12,925 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:12,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:56:12,925 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 06:56:12,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:12,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1856796326, now seen corresponding path program 1 times [2024-11-09 06:56:12,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:12,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394513723] [2024-11-09 06:56:12,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:12,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:12,965 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 06:56:12,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:12,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394513723] [2024-11-09 06:56:12,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394513723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:12,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:12,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:12,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887900504] [2024-11-09 06:56:12,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:12,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:12,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:12,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:12,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:12,987 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 144 [2024-11-09 06:56:12,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 128 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 06:56:12,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:12,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 144 [2024-11-09 06:56:12,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:13,115 INFO L124 PetriNetUnfolderBase]: 92/791 cut-off events. [2024-11-09 06:56:13,115 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-09 06:56:13,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 791 events. 92/791 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4695 event pairs, 30 based on Foata normal form. 0/721 useless extension candidates. Maximal degree in co-relation 1022. Up to 125 conditions per place. [2024-11-09 06:56:13,120 INFO L140 encePairwiseOnDemand]: 135/144 looper letters, 30 selfloop transitions, 6 changer transitions 0/141 dead transitions. [2024-11-09 06:56:13,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 141 transitions, 378 flow [2024-11-09 06:56:13,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:13,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:13,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2024-11-09 06:56:13,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-11-09 06:56:13,122 INFO L175 Difference]: Start difference. First operand has 136 places, 128 transitions, 277 flow. Second operand 3 states and 360 transitions. [2024-11-09 06:56:13,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 141 transitions, 378 flow [2024-11-09 06:56:13,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 141 transitions, 368 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 06:56:13,126 INFO L231 Difference]: Finished difference. Result has 133 places, 130 transitions, 305 flow [2024-11-09 06:56:13,126 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=305, PETRI_PLACES=133, PETRI_TRANSITIONS=130} [2024-11-09 06:56:13,127 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 1 predicate places. [2024-11-09 06:56:13,127 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 130 transitions, 305 flow [2024-11-09 06:56:13,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 06:56:13,128 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:13,128 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] [2024-11-09 06:56:13,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:56:13,129 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 06:56:13,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:13,129 INFO L85 PathProgramCache]: Analyzing trace with hash -983623192, now seen corresponding path program 1 times [2024-11-09 06:56:13,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:13,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636212356] [2024-11-09 06:56:13,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:13,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:13,175 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 06:56:13,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:13,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636212356] [2024-11-09 06:56:13,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636212356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:13,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:13,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:13,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511434558] [2024-11-09 06:56:13,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:13,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:13,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:13,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:13,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:13,206 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 144 [2024-11-09 06:56:13,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 130 transitions, 305 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 06:56:13,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:13,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 144 [2024-11-09 06:56:13,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:13,330 INFO L124 PetriNetUnfolderBase]: 95/793 cut-off events. [2024-11-09 06:56:13,331 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-11-09 06:56:13,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1128 conditions, 793 events. 95/793 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4750 event pairs, 60 based on Foata normal form. 0/723 useless extension candidates. Maximal degree in co-relation 1121. Up to 189 conditions per place. [2024-11-09 06:56:13,336 INFO L140 encePairwiseOnDemand]: 139/144 looper letters, 27 selfloop transitions, 4 changer transitions 0/137 dead transitions. [2024-11-09 06:56:13,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 137 transitions, 385 flow [2024-11-09 06:56:13,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:13,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:13,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2024-11-09 06:56:13,338 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8240740740740741 [2024-11-09 06:56:13,338 INFO L175 Difference]: Start difference. First operand has 133 places, 130 transitions, 305 flow. Second operand 3 states and 356 transitions. [2024-11-09 06:56:13,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 137 transitions, 385 flow [2024-11-09 06:56:13,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 137 transitions, 371 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:56:13,343 INFO L231 Difference]: Finished difference. Result has 135 places, 133 transitions, 325 flow [2024-11-09 06:56:13,343 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=135, PETRI_TRANSITIONS=133} [2024-11-09 06:56:13,344 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 3 predicate places. [2024-11-09 06:56:13,344 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 133 transitions, 325 flow [2024-11-09 06:56:13,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 06:56:13,345 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:13,345 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] [2024-11-09 06:56:13,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:56:13,347 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 06:56:13,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:13,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1999974289, now seen corresponding path program 1 times [2024-11-09 06:56:13,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:13,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777222684] [2024-11-09 06:56:13,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:13,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:56:13,379 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:56:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:56:13,429 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 06:56:13,429 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:56:13,431 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-09 06:56:13,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-09 06:56:13,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-09 06:56:13,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-09 06:56:13,433 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-09 06:56:13,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-09 06:56:13,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-09 06:56:13,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-09 06:56:13,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-09 06:56:13,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-09 06:56:13,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-09 06:56:13,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-09 06:56:13,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:56:13,439 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-09 06:56:13,443 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 06:56:13,443 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 06:56:13,478 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 06:56:13,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 193 transitions, 402 flow [2024-11-09 06:56:13,524 INFO L124 PetriNetUnfolderBase]: 40/347 cut-off events. [2024-11-09 06:56:13,525 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 06:56:13,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 347 events. 40/347 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1223 event pairs, 0 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 209. Up to 9 conditions per place. [2024-11-09 06:56:13,530 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 193 transitions, 402 flow [2024-11-09 06:56:13,535 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 193 transitions, 402 flow [2024-11-09 06:56:13,536 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:56:13,539 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;@58f23eb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:56:13,542 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-09 06:56:13,546 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:56:13,546 INFO L124 PetriNetUnfolderBase]: 4/49 cut-off events. [2024-11-09 06:56:13,546 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:56:13,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:13,546 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] [2024-11-09 06:56:13,547 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 06:56:13,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:13,547 INFO L85 PathProgramCache]: Analyzing trace with hash -930480128, now seen corresponding path program 1 times [2024-11-09 06:56:13,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:13,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066307584] [2024-11-09 06:56:13,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:13,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:13,570 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 06:56:13,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:13,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066307584] [2024-11-09 06:56:13,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066307584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:13,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:13,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:13,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623005582] [2024-11-09 06:56:13,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:13,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:56:13,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:13,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:56:13,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:56:13,576 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 193 [2024-11-09 06:56:13,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 193 transitions, 402 flow. Second operand has 2 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 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 06:56:13,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:13,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 193 [2024-11-09 06:56:13,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:13,935 INFO L124 PetriNetUnfolderBase]: 421/2602 cut-off events. [2024-11-09 06:56:13,936 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-09 06:56:13,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3361 conditions, 2602 events. 421/2602 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 21186 event pairs, 414 based on Foata normal form. 577/2911 useless extension candidates. Maximal degree in co-relation 2797. Up to 716 conditions per place. [2024-11-09 06:56:13,963 INFO L140 encePairwiseOnDemand]: 174/193 looper letters, 20 selfloop transitions, 0 changer transitions 0/172 dead transitions. [2024-11-09 06:56:13,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 172 transitions, 400 flow [2024-11-09 06:56:13,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:56:13,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 06:56:13,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 345 transitions. [2024-11-09 06:56:13,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8937823834196891 [2024-11-09 06:56:13,965 INFO L175 Difference]: Start difference. First operand has 176 places, 193 transitions, 402 flow. Second operand 2 states and 345 transitions. [2024-11-09 06:56:13,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 172 transitions, 400 flow [2024-11-09 06:56:13,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 172 transitions, 400 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:56:13,970 INFO L231 Difference]: Finished difference. Result has 175 places, 172 transitions, 360 flow [2024-11-09 06:56:13,970 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=360, PETRI_PLACES=175, PETRI_TRANSITIONS=172} [2024-11-09 06:56:13,971 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, -1 predicate places. [2024-11-09 06:56:13,972 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 172 transitions, 360 flow [2024-11-09 06:56:13,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 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 06:56:13,973 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:13,973 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] [2024-11-09 06:56:13,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:56:13,974 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:56:13,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:13,974 INFO L85 PathProgramCache]: Analyzing trace with hash -886944789, now seen corresponding path program 1 times [2024-11-09 06:56:13,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:13,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308799606] [2024-11-09 06:56:13,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:13,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:14,010 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 06:56:14,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:14,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308799606] [2024-11-09 06:56:14,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308799606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:14,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:14,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:56:14,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879963519] [2024-11-09 06:56:14,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:14,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:14,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:14,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:14,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:14,040 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 193 [2024-11-09 06:56:14,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 172 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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 06:56:14,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:14,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 193 [2024-11-09 06:56:14,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:14,643 INFO L124 PetriNetUnfolderBase]: 802/4340 cut-off events. [2024-11-09 06:56:14,643 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-09 06:56:14,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5694 conditions, 4340 events. 802/4340 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 41568 event pairs, 348 based on Foata normal form. 1/3941 useless extension candidates. Maximal degree in co-relation 5689. Up to 1303 conditions per place. [2024-11-09 06:56:14,673 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 31 selfloop transitions, 2 changer transitions 0/179 dead transitions. [2024-11-09 06:56:14,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 179 transitions, 440 flow [2024-11-09 06:56:14,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:14,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:14,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 475 transitions. [2024-11-09 06:56:14,676 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8203799654576857 [2024-11-09 06:56:14,676 INFO L175 Difference]: Start difference. First operand has 175 places, 172 transitions, 360 flow. Second operand 3 states and 475 transitions. [2024-11-09 06:56:14,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 179 transitions, 440 flow [2024-11-09 06:56:14,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 179 transitions, 440 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:56:14,681 INFO L231 Difference]: Finished difference. Result has 178 places, 173 transitions, 372 flow [2024-11-09 06:56:14,681 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=372, PETRI_PLACES=178, PETRI_TRANSITIONS=173} [2024-11-09 06:56:14,683 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 2 predicate places. [2024-11-09 06:56:14,683 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 173 transitions, 372 flow [2024-11-09 06:56:14,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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 06:56:14,684 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:14,684 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] [2024-11-09 06:56:14,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:56:14,685 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:56:14,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:14,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1010920344, now seen corresponding path program 1 times [2024-11-09 06:56:14,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:14,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303737142] [2024-11-09 06:56:14,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:14,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:14,977 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 06:56:14,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:14,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303737142] [2024-11-09 06:56:14,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303737142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:14,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:14,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:56:14,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817809869] [2024-11-09 06:56:14,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:14,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:56:14,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:14,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:56:14,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:56:15,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 193 [2024-11-09 06:56:15,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 173 transitions, 372 flow. Second operand has 6 states, 6 states have (on average 136.5) internal successors, (819), 6 states have internal predecessors, (819), 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 06:56:15,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:15,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 193 [2024-11-09 06:56:15,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:16,093 INFO L124 PetriNetUnfolderBase]: 1739/6865 cut-off events. [2024-11-09 06:56:16,093 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-11-09 06:56:16,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9836 conditions, 6865 events. 1739/6865 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 68791 event pairs, 760 based on Foata normal form. 0/6164 useless extension candidates. Maximal degree in co-relation 9829. Up to 2015 conditions per place. [2024-11-09 06:56:16,148 INFO L140 encePairwiseOnDemand]: 187/193 looper letters, 80 selfloop transitions, 6 changer transitions 0/220 dead transitions. [2024-11-09 06:56:16,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 220 transitions, 638 flow [2024-11-09 06:56:16,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:56:16,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:56:16,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 896 transitions. [2024-11-09 06:56:16,152 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7737478411053541 [2024-11-09 06:56:16,152 INFO L175 Difference]: Start difference. First operand has 178 places, 173 transitions, 372 flow. Second operand 6 states and 896 transitions. [2024-11-09 06:56:16,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 220 transitions, 638 flow [2024-11-09 06:56:16,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 220 transitions, 636 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:56:16,160 INFO L231 Difference]: Finished difference. Result has 181 places, 172 transitions, 380 flow [2024-11-09 06:56:16,160 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=380, PETRI_PLACES=181, PETRI_TRANSITIONS=172} [2024-11-09 06:56:16,161 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 5 predicate places. [2024-11-09 06:56:16,162 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 172 transitions, 380 flow [2024-11-09 06:56:16,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.5) internal successors, (819), 6 states have internal predecessors, (819), 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 06:56:16,162 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:16,163 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:16,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:56:16,163 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:56:16,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:16,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1827650231, now seen corresponding path program 1 times [2024-11-09 06:56:16,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:16,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396722200] [2024-11-09 06:56:16,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:16,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:16,222 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 06:56:16,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:16,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396722200] [2024-11-09 06:56:16,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396722200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:16,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:16,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:16,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860966247] [2024-11-09 06:56:16,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:16,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:16,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:16,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:16,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:16,262 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 193 [2024-11-09 06:56:16,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 172 transitions, 380 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:16,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:16,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 193 [2024-11-09 06:56:16,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:18,059 INFO L124 PetriNetUnfolderBase]: 4085/14792 cut-off events. [2024-11-09 06:56:18,060 INFO L125 PetriNetUnfolderBase]: For 240/240 co-relation queries the response was YES. [2024-11-09 06:56:18,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21539 conditions, 14792 events. 4085/14792 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 164322 event pairs, 1409 based on Foata normal form. 0/13243 useless extension candidates. Maximal degree in co-relation 21532. Up to 3578 conditions per place. [2024-11-09 06:56:18,157 INFO L140 encePairwiseOnDemand]: 174/193 looper letters, 58 selfloop transitions, 14 changer transitions 0/205 dead transitions. [2024-11-09 06:56:18,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 205 transitions, 601 flow [2024-11-09 06:56:18,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:18,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:18,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 479 transitions. [2024-11-09 06:56:18,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8272884283246977 [2024-11-09 06:56:18,163 INFO L175 Difference]: Start difference. First operand has 181 places, 172 transitions, 380 flow. Second operand 3 states and 479 transitions. [2024-11-09 06:56:18,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 205 transitions, 601 flow [2024-11-09 06:56:18,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 205 transitions, 589 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 06:56:18,169 INFO L231 Difference]: Finished difference. Result has 180 places, 186 transitions, 490 flow [2024-11-09 06:56:18,169 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=180, PETRI_TRANSITIONS=186} [2024-11-09 06:56:18,170 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 4 predicate places. [2024-11-09 06:56:18,170 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 186 transitions, 490 flow [2024-11-09 06:56:18,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:18,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:18,171 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] [2024-11-09 06:56:18,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:56:18,172 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:56:18,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:18,173 INFO L85 PathProgramCache]: Analyzing trace with hash 909106138, now seen corresponding path program 1 times [2024-11-09 06:56:18,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:18,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159002364] [2024-11-09 06:56:18,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:18,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:18,212 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 06:56:18,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:18,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159002364] [2024-11-09 06:56:18,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159002364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:18,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:18,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:18,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432407938] [2024-11-09 06:56:18,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:18,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:18,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:18,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:18,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:18,255 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 193 [2024-11-09 06:56:18,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 186 transitions, 490 flow. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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 06:56:18,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:18,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 193 [2024-11-09 06:56:18,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:19,852 INFO L124 PetriNetUnfolderBase]: 4151/16635 cut-off events. [2024-11-09 06:56:19,852 INFO L125 PetriNetUnfolderBase]: For 4322/4497 co-relation queries the response was YES. [2024-11-09 06:56:19,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27453 conditions, 16635 events. 4151/16635 cut-off events. For 4322/4497 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 195215 event pairs, 2411 based on Foata normal form. 46/15100 useless extension candidates. Maximal degree in co-relation 27445. Up to 5625 conditions per place. [2024-11-09 06:56:19,973 INFO L140 encePairwiseOnDemand]: 184/193 looper letters, 52 selfloop transitions, 14 changer transitions 0/210 dead transitions. [2024-11-09 06:56:19,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 210 transitions, 708 flow [2024-11-09 06:56:19,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:19,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:19,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 473 transitions. [2024-11-09 06:56:19,977 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8169257340241797 [2024-11-09 06:56:19,978 INFO L175 Difference]: Start difference. First operand has 180 places, 186 transitions, 490 flow. Second operand 3 states and 473 transitions. [2024-11-09 06:56:19,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 210 transitions, 708 flow [2024-11-09 06:56:19,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 210 transitions, 670 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:56:19,996 INFO L231 Difference]: Finished difference. Result has 182 places, 198 transitions, 588 flow [2024-11-09 06:56:19,996 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=588, PETRI_PLACES=182, PETRI_TRANSITIONS=198} [2024-11-09 06:56:19,997 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 6 predicate places. [2024-11-09 06:56:20,001 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 198 transitions, 588 flow [2024-11-09 06:56:20,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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 06:56:20,001 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:20,002 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] [2024-11-09 06:56:20,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:56:20,002 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:56:20,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:20,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1460415895, now seen corresponding path program 1 times [2024-11-09 06:56:20,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:20,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365065061] [2024-11-09 06:56:20,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:20,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:20,336 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 06:56:20,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:20,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365065061] [2024-11-09 06:56:20,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365065061] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:20,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796573743] [2024-11-09 06:56:20,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:20,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:20,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:56:20,340 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 06:56:20,341 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 06:56:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:20,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:56:20,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:20,518 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 06:56:20,518 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:20,580 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 06:56:20,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796573743] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:56:20,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:56:20,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 06:56:20,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724827898] [2024-11-09 06:56:20,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:56:20,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:56:20,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:20,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:56:20,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:56:20,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 193 [2024-11-09 06:56:20,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 198 transitions, 588 flow. Second operand has 10 states, 10 states have (on average 146.5) internal successors, (1465), 10 states have internal predecessors, (1465), 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 06:56:20,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:20,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 193 [2024-11-09 06:56:20,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:21,072 INFO L124 PetriNetUnfolderBase]: 762/3672 cut-off events. [2024-11-09 06:56:21,073 INFO L125 PetriNetUnfolderBase]: For 511/522 co-relation queries the response was YES. [2024-11-09 06:56:21,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5704 conditions, 3672 events. 762/3672 cut-off events. For 511/522 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 33068 event pairs, 75 based on Foata normal form. 105/3541 useless extension candidates. Maximal degree in co-relation 5695. Up to 478 conditions per place. [2024-11-09 06:56:21,100 INFO L140 encePairwiseOnDemand]: 188/193 looper letters, 72 selfloop transitions, 7 changer transitions 0/202 dead transitions. [2024-11-09 06:56:21,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 202 transitions, 708 flow [2024-11-09 06:56:21,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:56:21,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:56:21,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1377 transitions. [2024-11-09 06:56:21,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7927461139896373 [2024-11-09 06:56:21,104 INFO L175 Difference]: Start difference. First operand has 182 places, 198 transitions, 588 flow. Second operand 9 states and 1377 transitions. [2024-11-09 06:56:21,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 202 transitions, 708 flow [2024-11-09 06:56:21,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 202 transitions, 688 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:56:21,111 INFO L231 Difference]: Finished difference. Result has 143 places, 146 transitions, 432 flow [2024-11-09 06:56:21,111 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=432, PETRI_PLACES=143, PETRI_TRANSITIONS=146} [2024-11-09 06:56:21,112 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, -33 predicate places. [2024-11-09 06:56:21,112 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 146 transitions, 432 flow [2024-11-09 06:56:21,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.5) internal successors, (1465), 10 states have internal predecessors, (1465), 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 06:56:21,114 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:21,114 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 06:56:21,134 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 06:56:21,314 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,SelfDestructingSolverStorable11 [2024-11-09 06:56:21,316 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:56:21,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:21,316 INFO L85 PathProgramCache]: Analyzing trace with hash -685547369, now seen corresponding path program 1 times [2024-11-09 06:56:21,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:21,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824443290] [2024-11-09 06:56:21,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:21,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:21,372 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 06:56:21,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:21,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824443290] [2024-11-09 06:56:21,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824443290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:21,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:21,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:21,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246775528] [2024-11-09 06:56:21,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:21,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:21,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:21,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:21,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:21,407 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 193 [2024-11-09 06:56:21,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 146 transitions, 432 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:21,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:21,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 193 [2024-11-09 06:56:21,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:21,622 INFO L124 PetriNetUnfolderBase]: 260/1287 cut-off events. [2024-11-09 06:56:21,623 INFO L125 PetriNetUnfolderBase]: For 454/475 co-relation queries the response was YES. [2024-11-09 06:56:21,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2333 conditions, 1287 events. 260/1287 cut-off events. For 454/475 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 8696 event pairs, 132 based on Foata normal form. 7/1202 useless extension candidates. Maximal degree in co-relation 2324. Up to 459 conditions per place. [2024-11-09 06:56:21,631 INFO L140 encePairwiseOnDemand]: 185/193 looper letters, 42 selfloop transitions, 12 changer transitions 0/160 dead transitions. [2024-11-09 06:56:21,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 160 transitions, 584 flow [2024-11-09 06:56:21,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:21,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:21,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 459 transitions. [2024-11-09 06:56:21,634 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7927461139896373 [2024-11-09 06:56:21,635 INFO L175 Difference]: Start difference. First operand has 143 places, 146 transitions, 432 flow. Second operand 3 states and 459 transitions. [2024-11-09 06:56:21,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 160 transitions, 584 flow [2024-11-09 06:56:21,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 160 transitions, 569 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-09 06:56:21,642 INFO L231 Difference]: Finished difference. Result has 142 places, 154 transitions, 515 flow [2024-11-09 06:56:21,642 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=515, PETRI_PLACES=142, PETRI_TRANSITIONS=154} [2024-11-09 06:56:21,643 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, -34 predicate places. [2024-11-09 06:56:21,643 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 154 transitions, 515 flow [2024-11-09 06:56:21,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:21,643 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:21,644 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] [2024-11-09 06:56:21,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:56:21,644 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:56:21,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:21,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1241489000, now seen corresponding path program 1 times [2024-11-09 06:56:21,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:21,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864451481] [2024-11-09 06:56:21,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:21,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:21,696 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 06:56:21,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:21,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864451481] [2024-11-09 06:56:21,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864451481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:21,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:21,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:21,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751382465] [2024-11-09 06:56:21,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:21,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:21,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:21,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:21,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:21,741 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 193 [2024-11-09 06:56:21,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 154 transitions, 515 flow. Second operand has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 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 06:56:21,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:21,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 193 [2024-11-09 06:56:21,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:21,983 INFO L124 PetriNetUnfolderBase]: 291/1359 cut-off events. [2024-11-09 06:56:21,983 INFO L125 PetriNetUnfolderBase]: For 1124/1159 co-relation queries the response was YES. [2024-11-09 06:56:21,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2787 conditions, 1359 events. 291/1359 cut-off events. For 1124/1159 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9379 event pairs, 134 based on Foata normal form. 9/1292 useless extension candidates. Maximal degree in co-relation 2778. Up to 501 conditions per place. [2024-11-09 06:56:21,996 INFO L140 encePairwiseOnDemand]: 185/193 looper letters, 49 selfloop transitions, 12 changer transitions 0/169 dead transitions. [2024-11-09 06:56:21,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 169 transitions, 704 flow [2024-11-09 06:56:21,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:21,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:21,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 460 transitions. [2024-11-09 06:56:21,998 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7944732297063903 [2024-11-09 06:56:21,999 INFO L175 Difference]: Start difference. First operand has 142 places, 154 transitions, 515 flow. Second operand 3 states and 460 transitions. [2024-11-09 06:56:21,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 169 transitions, 704 flow [2024-11-09 06:56:22,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 169 transitions, 676 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:56:22,005 INFO L231 Difference]: Finished difference. Result has 144 places, 162 transitions, 601 flow [2024-11-09 06:56:22,005 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=601, PETRI_PLACES=144, PETRI_TRANSITIONS=162} [2024-11-09 06:56:22,006 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, -32 predicate places. [2024-11-09 06:56:22,006 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 162 transitions, 601 flow [2024-11-09 06:56:22,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 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 06:56:22,007 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:22,007 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] [2024-11-09 06:56:22,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:56:22,010 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:56:22,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:22,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1863380673, now seen corresponding path program 1 times [2024-11-09 06:56:22,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:22,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288330199] [2024-11-09 06:56:22,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:22,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:56:22,045 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:56:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:56:22,078 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 06:56:22,080 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:56:22,081 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-09 06:56:22,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-09 06:56:22,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-09 06:56:22,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-09 06:56:22,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-09 06:56:22,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-09 06:56:22,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2024-11-09 06:56:22,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-09 06:56:22,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-09 06:56:22,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-09 06:56:22,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-09 06:56:22,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-09 06:56:22,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-09 06:56:22,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-09 06:56:22,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-09 06:56:22,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-09 06:56:22,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 06:56:22,083 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:22,084 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 06:56:22,084 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-09 06:56:22,125 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 06:56:22,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 242 transitions, 511 flow [2024-11-09 06:56:22,201 INFO L124 PetriNetUnfolderBase]: 62/532 cut-off events. [2024-11-09 06:56:22,201 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-09 06:56:22,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 557 conditions, 532 events. 62/532 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2051 event pairs, 1 based on Foata normal form. 0/438 useless extension candidates. Maximal degree in co-relation 355. Up to 16 conditions per place. [2024-11-09 06:56:22,207 INFO L82 GeneralOperation]: Start removeDead. Operand has 220 places, 242 transitions, 511 flow [2024-11-09 06:56:22,212 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 220 places, 242 transitions, 511 flow [2024-11-09 06:56:22,213 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:56:22,214 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;@58f23eb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:56:22,214 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-09 06:56:22,217 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:56:22,217 INFO L124 PetriNetUnfolderBase]: 4/49 cut-off events. [2024-11-09 06:56:22,218 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:56:22,218 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:22,218 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] [2024-11-09 06:56:22,218 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 06:56:22,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:22,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1938267136, now seen corresponding path program 1 times [2024-11-09 06:56:22,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:22,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777847043] [2024-11-09 06:56:22,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:22,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:22,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:22,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:22,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777847043] [2024-11-09 06:56:22,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777847043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:22,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:22,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:22,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33430044] [2024-11-09 06:56:22,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:22,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:56:22,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:22,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:56:22,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:56:22,241 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 242 [2024-11-09 06:56:22,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 242 transitions, 511 flow. Second operand has 2 states, 2 states have (on average 189.0) internal successors, (378), 2 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 06:56:22,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:22,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 242 [2024-11-09 06:56:22,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:24,584 INFO L124 PetriNetUnfolderBase]: 4833/20255 cut-off events. [2024-11-09 06:56:24,584 INFO L125 PetriNetUnfolderBase]: For 940/940 co-relation queries the response was YES. [2024-11-09 06:56:24,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27680 conditions, 20255 events. 4833/20255 cut-off events. For 940/940 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 243219 event pairs, 4795 based on Foata normal form. 5465/23774 useless extension candidates. Maximal degree in co-relation 23268. Up to 6995 conditions per place. [2024-11-09 06:56:24,791 INFO L140 encePairwiseOnDemand]: 217/242 looper letters, 28 selfloop transitions, 0 changer transitions 0/215 dead transitions. [2024-11-09 06:56:24,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 215 transitions, 513 flow [2024-11-09 06:56:24,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:56:24,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 06:56:24,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 429 transitions. [2024-11-09 06:56:24,794 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8863636363636364 [2024-11-09 06:56:24,794 INFO L175 Difference]: Start difference. First operand has 220 places, 242 transitions, 511 flow. Second operand 2 states and 429 transitions. [2024-11-09 06:56:24,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 215 transitions, 513 flow [2024-11-09 06:56:24,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 215 transitions, 513 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:56:24,799 INFO L231 Difference]: Finished difference. Result has 219 places, 215 transitions, 457 flow [2024-11-09 06:56:24,799 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=457, PETRI_PLACES=219, PETRI_TRANSITIONS=215} [2024-11-09 06:56:24,801 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, -1 predicate places. [2024-11-09 06:56:24,801 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 215 transitions, 457 flow [2024-11-09 06:56:24,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 189.0) internal successors, (378), 2 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 06:56:24,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:24,802 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] [2024-11-09 06:56:24,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 06:56:24,802 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 06:56:24,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:24,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1292357163, now seen corresponding path program 1 times [2024-11-09 06:56:24,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:24,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940876909] [2024-11-09 06:56:24,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:24,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:24,837 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 06:56:24,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:24,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940876909] [2024-11-09 06:56:24,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940876909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:24,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:24,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:56:24,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002611693] [2024-11-09 06:56:24,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:24,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:24,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:24,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:24,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:24,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 242 [2024-11-09 06:56:24,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 215 transitions, 457 flow. Second operand has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 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 06:56:24,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:24,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 242 [2024-11-09 06:56:24,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:28,414 INFO L124 PetriNetUnfolderBase]: 8969/35405 cut-off events. [2024-11-09 06:56:28,414 INFO L125 PetriNetUnfolderBase]: For 937/937 co-relation queries the response was YES. [2024-11-09 06:56:28,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48644 conditions, 35405 events. 8969/35405 cut-off events. For 937/937 co-relation queries the response was YES. Maximal size of possible extension queue 762. Compared 458373 event pairs, 8324 based on Foata normal form. 1/32003 useless extension candidates. Maximal degree in co-relation 48638. Up to 12802 conditions per place. [2024-11-09 06:56:28,969 INFO L140 encePairwiseOnDemand]: 239/242 looper letters, 39 selfloop transitions, 2 changer transitions 0/222 dead transitions. [2024-11-09 06:56:28,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 222 transitions, 553 flow [2024-11-09 06:56:28,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:28,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:28,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 588 transitions. [2024-11-09 06:56:28,971 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8099173553719008 [2024-11-09 06:56:28,971 INFO L175 Difference]: Start difference. First operand has 219 places, 215 transitions, 457 flow. Second operand 3 states and 588 transitions. [2024-11-09 06:56:28,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 222 transitions, 553 flow [2024-11-09 06:56:28,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 222 transitions, 553 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:56:28,977 INFO L231 Difference]: Finished difference. Result has 222 places, 216 transitions, 469 flow [2024-11-09 06:56:28,977 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=469, PETRI_PLACES=222, PETRI_TRANSITIONS=216} [2024-11-09 06:56:28,978 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, 2 predicate places. [2024-11-09 06:56:28,978 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 216 transitions, 469 flow [2024-11-09 06:56:28,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 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 06:56:28,978 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:28,979 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] [2024-11-09 06:56:28,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 06:56:28,979 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 06:56:28,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:28,979 INFO L85 PathProgramCache]: Analyzing trace with hash 2122930970, now seen corresponding path program 1 times [2024-11-09 06:56:28,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:28,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188897273] [2024-11-09 06:56:28,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:28,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:29,229 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 06:56:29,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:29,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188897273] [2024-11-09 06:56:29,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188897273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:29,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:29,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:56:29,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077936349] [2024-11-09 06:56:29,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:29,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:56:29,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:29,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:56:29,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:56:29,319 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 242 [2024-11-09 06:56:29,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 216 transitions, 469 flow. Second operand has 6 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 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 06:56:29,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:29,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 242 [2024-11-09 06:56:29,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:36,636 INFO L124 PetriNetUnfolderBase]: 19695/66075 cut-off events. [2024-11-09 06:56:36,637 INFO L125 PetriNetUnfolderBase]: For 1505/1505 co-relation queries the response was YES. [2024-11-09 06:56:36,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95001 conditions, 66075 events. 19695/66075 cut-off events. For 1505/1505 co-relation queries the response was YES. Maximal size of possible extension queue 1355. Compared 893559 event pairs, 7382 based on Foata normal form. 0/60323 useless extension candidates. Maximal degree in co-relation 94993. Up to 20118 conditions per place. [2024-11-09 06:56:37,277 INFO L140 encePairwiseOnDemand]: 236/242 looper letters, 112 selfloop transitions, 6 changer transitions 0/287 dead transitions. [2024-11-09 06:56:37,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 287 transitions, 847 flow [2024-11-09 06:56:37,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:56:37,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:56:37,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1138 transitions. [2024-11-09 06:56:37,280 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7837465564738292 [2024-11-09 06:56:37,280 INFO L175 Difference]: Start difference. First operand has 222 places, 216 transitions, 469 flow. Second operand 6 states and 1138 transitions. [2024-11-09 06:56:37,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 287 transitions, 847 flow [2024-11-09 06:56:37,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 287 transitions, 845 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:56:37,287 INFO L231 Difference]: Finished difference. Result has 225 places, 215 transitions, 477 flow [2024-11-09 06:56:37,287 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=477, PETRI_PLACES=225, PETRI_TRANSITIONS=215} [2024-11-09 06:56:37,288 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, 5 predicate places. [2024-11-09 06:56:37,288 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 215 transitions, 477 flow [2024-11-09 06:56:37,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 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 06:56:37,289 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:37,289 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:37,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 06:56:37,289 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 06:56:37,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:37,290 INFO L85 PathProgramCache]: Analyzing trace with hash 2072502008, now seen corresponding path program 1 times [2024-11-09 06:56:37,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:37,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269246475] [2024-11-09 06:56:37,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:37,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:37,320 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 06:56:37,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:37,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269246475] [2024-11-09 06:56:37,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269246475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:37,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:37,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:37,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860647024] [2024-11-09 06:56:37,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:37,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:37,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:37,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:37,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:37,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 242 [2024-11-09 06:56:37,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 215 transitions, 477 flow. Second operand has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 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 06:56:37,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:37,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 242 [2024-11-09 06:56:37,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand