./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/08_rand_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/08_rand_cas.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 111430583c5cad5728291a83d9964586feec908088fcc502d1f1ab24d409725c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:25:55,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:25:55,872 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:25:55,876 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:25:55,877 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:25:55,901 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:25:55,902 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:25:55,902 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:25:55,903 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:25:55,905 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:25:55,906 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:25:55,906 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:25:55,906 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:25:55,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:25:55,907 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:25:55,910 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:25:55,910 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:25:55,911 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:25:55,911 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:25:55,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:25:55,911 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:25:55,912 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:25:55,913 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:25:55,913 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:25:55,913 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:25:55,913 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:25:55,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:25:55,914 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:25:55,914 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:25:55,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:25:55,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:25:55,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:25:55,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:25:55,916 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:25:55,917 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:25:55,917 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:25:55,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:25:55,918 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:25:55,918 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:25:55,918 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:25:55,918 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:25:55,919 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 111430583c5cad5728291a83d9964586feec908088fcc502d1f1ab24d409725c [2024-11-20 13:25:56,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:25:56,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:25:56,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:25:56,236 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:25:56,236 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:25:56,238 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/08_rand_cas.i [2024-11-20 13:25:57,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:25:57,858 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:25:57,858 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/08_rand_cas.i [2024-11-20 13:25:57,874 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36c1d51c0/e03541e19a044e0595aef82ab210af64/FLAGc8f7a971c [2024-11-20 13:25:57,887 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36c1d51c0/e03541e19a044e0595aef82ab210af64 [2024-11-20 13:25:57,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:25:57,892 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:25:57,895 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:25:57,895 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:25:57,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:25:57,902 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:25:57" (1/1) ... [2024-11-20 13:25:57,903 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67a28c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:57, skipping insertion in model container [2024-11-20 13:25:57,903 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:25:57" (1/1) ... [2024-11-20 13:25:57,947 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:25:58,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:25:58,354 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:25:58,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:25:58,497 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:25:58,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:58 WrapperNode [2024-11-20 13:25:58,498 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:25:58,499 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:25:58,499 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:25:58,499 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:25:58,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:58" (1/1) ... [2024-11-20 13:25:58,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:58" (1/1) ... [2024-11-20 13:25:58,558 INFO L138 Inliner]: procedures = 178, calls = 38, calls flagged for inlining = 16, calls inlined = 17, statements flattened = 224 [2024-11-20 13:25:58,558 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:25:58,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:25:58,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:25:58,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:25:58,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:58" (1/1) ... [2024-11-20 13:25:58,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:58" (1/1) ... [2024-11-20 13:25:58,572 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:58" (1/1) ... [2024-11-20 13:25:58,572 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:58" (1/1) ... [2024-11-20 13:25:58,582 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:58" (1/1) ... [2024-11-20 13:25:58,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:58" (1/1) ... [2024-11-20 13:25:58,588 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:58" (1/1) ... [2024-11-20 13:25:58,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:58" (1/1) ... [2024-11-20 13:25:58,592 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:25:58,593 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:25:58,593 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:25:58,594 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:25:58,594 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:58" (1/1) ... [2024-11-20 13:25:58,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:25:58,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:25:58,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 13:25:58,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 13:25:58,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:25:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-20 13:25:58,718 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-20 13:25:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:25:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 13:25:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:25:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 13:25:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 13:25:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:25:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 13:25:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:25:58,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:25:58,724 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:25:58,852 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:25:58,854 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:25:59,192 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:25:59,192 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:25:59,390 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:25:59,391 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-20 13:25:59,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:25:59 BoogieIcfgContainer [2024-11-20 13:25:59,391 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:25:59,393 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:25:59,393 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:25:59,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:25:59,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:25:57" (1/3) ... [2024-11-20 13:25:59,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd6e2a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:25:59, skipping insertion in model container [2024-11-20 13:25:59,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:25:58" (2/3) ... [2024-11-20 13:25:59,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd6e2a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:25:59, skipping insertion in model container [2024-11-20 13:25:59,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:25:59" (3/3) ... [2024-11-20 13:25:59,400 INFO L112 eAbstractionObserver]: Analyzing ICFG 08_rand_cas.i [2024-11-20 13:25:59,417 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:25:59,417 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-20 13:25:59,417 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:25:59,510 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:25:59,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 164 transitions, 332 flow [2024-11-20 13:25:59,641 INFO L124 PetriNetUnfolderBase]: 17/173 cut-off events. [2024-11-20 13:25:59,642 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:25:59,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 173 events. 17/173 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 324 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 148. Up to 4 conditions per place. [2024-11-20 13:25:59,650 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 164 transitions, 332 flow [2024-11-20 13:25:59,656 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 164 transitions, 332 flow [2024-11-20 13:25:59,670 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:25:59,677 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;@6790905b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:25:59,677 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-11-20 13:25:59,685 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:25:59,685 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2024-11-20 13:25:59,685 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:25:59,685 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:59,686 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] [2024-11-20 13:25:59,687 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-20 13:25:59,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:59,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1245155382, now seen corresponding path program 1 times [2024-11-20 13:25:59,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:59,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023606395] [2024-11-20 13:25:59,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:59,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:59,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:59,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:59,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023606395] [2024-11-20 13:25:59,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023606395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:59,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:59,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 13:25:59,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992944046] [2024-11-20 13:25:59,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:59,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 13:25:59,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:59,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 13:25:59,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 13:25:59,931 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-11-20 13:25:59,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 164 transitions, 332 flow. Second operand has 2 states, 2 states have (on average 130.0) internal successors, (260), 2 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:25:59,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:59,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-11-20 13:25:59,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:00,024 INFO L124 PetriNetUnfolderBase]: 4/133 cut-off events. [2024-11-20 13:26:00,027 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:26:00,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 133 events. 4/133 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 119 event pairs, 0 based on Foata normal form. 16/138 useless extension candidates. Maximal degree in co-relation 119. Up to 8 conditions per place. [2024-11-20 13:26:00,029 INFO L140 encePairwiseOnDemand]: 139/164 looper letters, 7 selfloop transitions, 0 changer transitions 0/129 dead transitions. [2024-11-20 13:26:00,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 129 transitions, 276 flow [2024-11-20 13:26:00,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 13:26:00,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-20 13:26:00,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 290 transitions. [2024-11-20 13:26:00,045 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8841463414634146 [2024-11-20 13:26:00,047 INFO L175 Difference]: Start difference. First operand has 151 places, 164 transitions, 332 flow. Second operand 2 states and 290 transitions. [2024-11-20 13:26:00,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 129 transitions, 276 flow [2024-11-20 13:26:00,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 129 transitions, 276 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:26:00,056 INFO L231 Difference]: Finished difference. Result has 129 places, 129 transitions, 262 flow [2024-11-20 13:26:00,059 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=128, 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=262, PETRI_PLACES=129, PETRI_TRANSITIONS=129} [2024-11-20 13:26:00,064 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, -22 predicate places. [2024-11-20 13:26:00,065 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 129 transitions, 262 flow [2024-11-20 13:26:00,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 130.0) internal successors, (260), 2 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:00,065 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:00,065 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] [2024-11-20 13:26:00,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:26:00,066 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-20 13:26:00,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:00,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1701530503, now seen corresponding path program 1 times [2024-11-20 13:26:00,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:00,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803277154] [2024-11-20 13:26:00,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:00,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:00,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:26:00,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:00,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803277154] [2024-11-20 13:26:00,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803277154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:00,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:00,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:26:00,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111736895] [2024-11-20 13:26:00,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:00,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:26:00,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:00,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:26:00,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:26:00,167 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 164 [2024-11-20 13:26:00,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 129 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:00,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:00,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 164 [2024-11-20 13:26:00,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:00,250 INFO L124 PetriNetUnfolderBase]: 4/132 cut-off events. [2024-11-20 13:26:00,251 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:26:00,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 132 events. 4/132 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 116 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 144. Up to 6 conditions per place. [2024-11-20 13:26:00,252 INFO L140 encePairwiseOnDemand]: 161/164 looper letters, 8 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2024-11-20 13:26:00,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 128 transitions, 280 flow [2024-11-20 13:26:00,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:26:00,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:26:00,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2024-11-20 13:26:00,258 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7845528455284553 [2024-11-20 13:26:00,258 INFO L175 Difference]: Start difference. First operand has 129 places, 129 transitions, 262 flow. Second operand 3 states and 386 transitions. [2024-11-20 13:26:00,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 128 transitions, 280 flow [2024-11-20 13:26:00,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 128 transitions, 280 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:26:00,264 INFO L231 Difference]: Finished difference. Result has 130 places, 128 transitions, 264 flow [2024-11-20 13:26:00,264 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=130, PETRI_TRANSITIONS=128} [2024-11-20 13:26:00,265 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, -21 predicate places. [2024-11-20 13:26:00,265 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 128 transitions, 264 flow [2024-11-20 13:26:00,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:00,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:00,268 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:00,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:26:00,268 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-20 13:26:00,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:00,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1890050019, now seen corresponding path program 1 times [2024-11-20 13:26:00,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:00,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105242134] [2024-11-20 13:26:00,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:00,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:00,301 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:26:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:00,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:26:00,349 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:26:00,351 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-11-20 13:26:00,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2024-11-20 13:26:00,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2024-11-20 13:26:00,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2024-11-20 13:26:00,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2024-11-20 13:26:00,354 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2024-11-20 13:26:00,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2024-11-20 13:26:00,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2024-11-20 13:26:00,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2024-11-20 13:26:00,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2024-11-20 13:26:00,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2024-11-20 13:26:00,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2024-11-20 13:26:00,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2024-11-20 13:26:00,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2024-11-20 13:26:00,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2024-11-20 13:26:00,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2024-11-20 13:26:00,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2024-11-20 13:26:00,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2024-11-20 13:26:00,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2024-11-20 13:26:00,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2024-11-20 13:26:00,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2024-11-20 13:26:00,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2024-11-20 13:26:00,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2024-11-20 13:26:00,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2024-11-20 13:26:00,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2024-11-20 13:26:00,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2024-11-20 13:26:00,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2024-11-20 13:26:00,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2024-11-20 13:26:00,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2024-11-20 13:26:00,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2024-11-20 13:26:00,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2024-11-20 13:26:00,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2024-11-20 13:26:00,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2024-11-20 13:26:00,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:26:00,366 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-20 13:26:00,370 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:26:00,370 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-20 13:26:00,456 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:26:00,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 302 transitions, 614 flow [2024-11-20 13:26:00,579 INFO L124 PetriNetUnfolderBase]: 33/322 cut-off events. [2024-11-20 13:26:00,580 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 13:26:00,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 322 events. 33/322 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1137 event pairs, 0 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 285. Up to 6 conditions per place. [2024-11-20 13:26:00,586 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 302 transitions, 614 flow [2024-11-20 13:26:00,591 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 276 places, 302 transitions, 614 flow [2024-11-20 13:26:00,592 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:26:00,595 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;@6790905b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:26:00,598 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2024-11-20 13:26:00,601 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:26:00,601 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2024-11-20 13:26:00,602 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:26:00,602 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:00,602 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] [2024-11-20 13:26:00,602 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-20 13:26:00,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:00,604 INFO L85 PathProgramCache]: Analyzing trace with hash -659616947, now seen corresponding path program 1 times [2024-11-20 13:26:00,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:00,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397643458] [2024-11-20 13:26:00,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:00,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:00,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:26:00,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:00,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397643458] [2024-11-20 13:26:00,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397643458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:00,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:00,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 13:26:00,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273174150] [2024-11-20 13:26:00,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:00,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 13:26:00,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:00,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 13:26:00,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 13:26:00,655 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 302 [2024-11-20 13:26:00,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 302 transitions, 614 flow. Second operand has 2 states, 2 states have (on average 235.0) internal successors, (470), 2 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:00,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:00,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 302 [2024-11-20 13:26:00,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:00,906 INFO L124 PetriNetUnfolderBase]: 78/1031 cut-off events. [2024-11-20 13:26:00,906 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-11-20 13:26:00,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1156 conditions, 1031 events. 78/1031 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6508 event pairs, 42 based on Foata normal form. 176/1098 useless extension candidates. Maximal degree in co-relation 976. Up to 99 conditions per place. [2024-11-20 13:26:00,917 INFO L140 encePairwiseOnDemand]: 254/302 looper letters, 14 selfloop transitions, 0 changer transitions 0/237 dead transitions. [2024-11-20 13:26:00,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 237 transitions, 512 flow [2024-11-20 13:26:00,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 13:26:00,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-20 13:26:00,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 530 transitions. [2024-11-20 13:26:00,923 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8774834437086093 [2024-11-20 13:26:00,924 INFO L175 Difference]: Start difference. First operand has 276 places, 302 transitions, 614 flow. Second operand 2 states and 530 transitions. [2024-11-20 13:26:00,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 237 transitions, 512 flow [2024-11-20 13:26:00,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 237 transitions, 512 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:26:00,932 INFO L231 Difference]: Finished difference. Result has 235 places, 237 transitions, 484 flow [2024-11-20 13:26:00,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=484, PETRI_PLACES=235, PETRI_TRANSITIONS=237} [2024-11-20 13:26:00,933 INFO L277 CegarLoopForPetriNet]: 276 programPoint places, -41 predicate places. [2024-11-20 13:26:00,934 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 237 transitions, 484 flow [2024-11-20 13:26:00,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 235.0) internal successors, (470), 2 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:00,934 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:00,934 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] [2024-11-20 13:26:00,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:26:00,935 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-20 13:26:00,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:00,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1763310768, now seen corresponding path program 1 times [2024-11-20 13:26:00,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:00,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941430312] [2024-11-20 13:26:00,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:00,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:00,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:26:00,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:00,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941430312] [2024-11-20 13:26:00,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941430312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:00,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:00,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:26:00,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817985476] [2024-11-20 13:26:00,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:00,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:26:00,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:00,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:26:00,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:26:01,018 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 302 [2024-11-20 13:26:01,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 237 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:01,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:01,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 302 [2024-11-20 13:26:01,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:01,359 INFO L124 PetriNetUnfolderBase]: 180/1847 cut-off events. [2024-11-20 13:26:01,359 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-20 13:26:01,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2144 conditions, 1847 events. 180/1847 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 14344 event pairs, 44 based on Foata normal form. 0/1660 useless extension candidates. Maximal degree in co-relation 2139. Up to 146 conditions per place. [2024-11-20 13:26:01,376 INFO L140 encePairwiseOnDemand]: 294/302 looper letters, 35 selfloop transitions, 6 changer transitions 0/256 dead transitions. [2024-11-20 13:26:01,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 256 transitions, 609 flow [2024-11-20 13:26:01,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:26:01,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:26:01,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 721 transitions. [2024-11-20 13:26:01,381 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7958057395143487 [2024-11-20 13:26:01,381 INFO L175 Difference]: Start difference. First operand has 235 places, 237 transitions, 484 flow. Second operand 3 states and 721 transitions. [2024-11-20 13:26:01,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 256 transitions, 609 flow [2024-11-20 13:26:01,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 256 transitions, 609 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:26:01,389 INFO L231 Difference]: Finished difference. Result has 239 places, 243 transitions, 536 flow [2024-11-20 13:26:01,390 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=536, PETRI_PLACES=239, PETRI_TRANSITIONS=243} [2024-11-20 13:26:01,391 INFO L277 CegarLoopForPetriNet]: 276 programPoint places, -37 predicate places. [2024-11-20 13:26:01,392 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 243 transitions, 536 flow [2024-11-20 13:26:01,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:01,392 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:01,392 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:01,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:26:01,393 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-20 13:26:01,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:01,394 INFO L85 PathProgramCache]: Analyzing trace with hash 644368266, now seen corresponding path program 1 times [2024-11-20 13:26:01,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:01,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479980188] [2024-11-20 13:26:01,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:01,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:01,415 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:26:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:01,436 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:26:01,437 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:26:01,437 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2024-11-20 13:26:01,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2024-11-20 13:26:01,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2024-11-20 13:26:01,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2024-11-20 13:26:01,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2024-11-20 13:26:01,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2024-11-20 13:26:01,441 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2024-11-20 13:26:01,441 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2024-11-20 13:26:01,441 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2024-11-20 13:26:01,442 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2024-11-20 13:26:01,442 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2024-11-20 13:26:01,442 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2024-11-20 13:26:01,442 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2024-11-20 13:26:01,442 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2024-11-20 13:26:01,442 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2024-11-20 13:26:01,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2024-11-20 13:26:01,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2024-11-20 13:26:01,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2024-11-20 13:26:01,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2024-11-20 13:26:01,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2024-11-20 13:26:01,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2024-11-20 13:26:01,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2024-11-20 13:26:01,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2024-11-20 13:26:01,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2024-11-20 13:26:01,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2024-11-20 13:26:01,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2024-11-20 13:26:01,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2024-11-20 13:26:01,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2024-11-20 13:26:01,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2024-11-20 13:26:01,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2024-11-20 13:26:01,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2024-11-20 13:26:01,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2024-11-20 13:26:01,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2024-11-20 13:26:01,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2024-11-20 13:26:01,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2024-11-20 13:26:01,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2024-11-20 13:26:01,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2024-11-20 13:26:01,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2024-11-20 13:26:01,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2024-11-20 13:26:01,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2024-11-20 13:26:01,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2024-11-20 13:26:01,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2024-11-20 13:26:01,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2024-11-20 13:26:01,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2024-11-20 13:26:01,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2024-11-20 13:26:01,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2024-11-20 13:26:01,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2024-11-20 13:26:01,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2024-11-20 13:26:01,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2024-11-20 13:26:01,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:26:01,450 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-20 13:26:01,451 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:26:01,451 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-20 13:26:01,553 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:26:01,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 401 places, 440 transitions, 898 flow [2024-11-20 13:26:01,661 INFO L124 PetriNetUnfolderBase]: 49/471 cut-off events. [2024-11-20 13:26:01,662 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-20 13:26:01,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 471 events. 49/471 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2050 event pairs, 0 based on Foata normal form. 0/370 useless extension candidates. Maximal degree in co-relation 422. Up to 8 conditions per place. [2024-11-20 13:26:01,673 INFO L82 GeneralOperation]: Start removeDead. Operand has 401 places, 440 transitions, 898 flow [2024-11-20 13:26:01,683 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 401 places, 440 transitions, 898 flow [2024-11-20 13:26:01,685 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:26:01,687 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;@6790905b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:26:01,687 INFO L334 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2024-11-20 13:26:01,690 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:26:01,691 INFO L124 PetriNetUnfolderBase]: 2/28 cut-off events. [2024-11-20 13:26:01,691 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:26:01,691 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:01,691 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] [2024-11-20 13:26:01,691 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-20 13:26:01,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:01,692 INFO L85 PathProgramCache]: Analyzing trace with hash 945449294, now seen corresponding path program 1 times [2024-11-20 13:26:01,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:01,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454397438] [2024-11-20 13:26:01,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:01,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:01,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:26:01,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:01,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454397438] [2024-11-20 13:26:01,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454397438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:01,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:01,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 13:26:01,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775682395] [2024-11-20 13:26:01,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:01,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 13:26:01,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:01,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 13:26:01,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 13:26:01,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 440 [2024-11-20 13:26:01,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 440 transitions, 898 flow. Second operand has 2 states, 2 states have (on average 340.0) internal successors, (680), 2 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:01,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:01,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 440 [2024-11-20 13:26:01,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:03,218 INFO L124 PetriNetUnfolderBase]: 894/7669 cut-off events. [2024-11-20 13:26:03,219 INFO L125 PetriNetUnfolderBase]: For 319/319 co-relation queries the response was YES. [2024-11-20 13:26:03,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8922 conditions, 7669 events. 894/7669 cut-off events. For 319/319 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 85356 event pairs, 630 based on Foata normal form. 1700/8544 useless extension candidates. Maximal degree in co-relation 7473. Up to 1030 conditions per place. [2024-11-20 13:26:03,313 INFO L140 encePairwiseOnDemand]: 369/440 looper letters, 21 selfloop transitions, 0 changer transitions 0/345 dead transitions. [2024-11-20 13:26:03,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 345 transitions, 750 flow [2024-11-20 13:26:03,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 13:26:03,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-20 13:26:03,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 770 transitions. [2024-11-20 13:26:03,317 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.875 [2024-11-20 13:26:03,317 INFO L175 Difference]: Start difference. First operand has 401 places, 440 transitions, 898 flow. Second operand 2 states and 770 transitions. [2024-11-20 13:26:03,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 345 transitions, 750 flow [2024-11-20 13:26:03,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 345 transitions, 748 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-20 13:26:03,326 INFO L231 Difference]: Finished difference. Result has 341 places, 345 transitions, 706 flow [2024-11-20 13:26:03,327 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=440, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=706, PETRI_PLACES=341, PETRI_TRANSITIONS=345} [2024-11-20 13:26:03,330 INFO L277 CegarLoopForPetriNet]: 401 programPoint places, -60 predicate places. [2024-11-20 13:26:03,331 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 345 transitions, 706 flow [2024-11-20 13:26:03,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 340.0) internal successors, (680), 2 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:03,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:03,332 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] [2024-11-20 13:26:03,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:26:03,332 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-20 13:26:03,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:03,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1956244111, now seen corresponding path program 1 times [2024-11-20 13:26:03,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:03,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057223072] [2024-11-20 13:26:03,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:03,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:03,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:26:03,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:03,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057223072] [2024-11-20 13:26:03,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057223072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:03,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:03,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:26:03,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203453460] [2024-11-20 13:26:03,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:03,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:26:03,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:03,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:26:03,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:26:03,397 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 440 [2024-11-20 13:26:03,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 345 transitions, 706 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:03,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:03,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 440 [2024-11-20 13:26:03,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:07,063 INFO L124 PetriNetUnfolderBase]: 3955/25016 cut-off events. [2024-11-20 13:26:07,064 INFO L125 PetriNetUnfolderBase]: For 451/451 co-relation queries the response was YES. [2024-11-20 13:26:07,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30526 conditions, 25016 events. 3955/25016 cut-off events. For 451/451 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 341503 event pairs, 1180 based on Foata normal form. 0/22444 useless extension candidates. Maximal degree in co-relation 30520. Up to 2807 conditions per place. [2024-11-20 13:26:07,345 INFO L140 encePairwiseOnDemand]: 428/440 looper letters, 53 selfloop transitions, 9 changer transitions 0/374 dead transitions. [2024-11-20 13:26:07,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 374 transitions, 898 flow [2024-11-20 13:26:07,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:26:07,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:26:07,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1046 transitions. [2024-11-20 13:26:07,350 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7924242424242425 [2024-11-20 13:26:07,350 INFO L175 Difference]: Start difference. First operand has 341 places, 345 transitions, 706 flow. Second operand 3 states and 1046 transitions. [2024-11-20 13:26:07,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 374 transitions, 898 flow [2024-11-20 13:26:07,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 374 transitions, 898 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:26:07,356 INFO L231 Difference]: Finished difference. Result has 345 places, 354 transitions, 784 flow [2024-11-20 13:26:07,357 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=440, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=784, PETRI_PLACES=345, PETRI_TRANSITIONS=354} [2024-11-20 13:26:07,358 INFO L277 CegarLoopForPetriNet]: 401 programPoint places, -56 predicate places. [2024-11-20 13:26:07,358 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 354 transitions, 784 flow [2024-11-20 13:26:07,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:07,359 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:07,359 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] [2024-11-20 13:26:07,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:26:07,359 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-20 13:26:07,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:07,360 INFO L85 PathProgramCache]: Analyzing trace with hash 594371042, now seen corresponding path program 1 times [2024-11-20 13:26:07,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:07,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771100682] [2024-11-20 13:26:07,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:07,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:07,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:26:07,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:07,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771100682] [2024-11-20 13:26:07,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771100682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:07,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:07,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:26:07,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067679037] [2024-11-20 13:26:07,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:07,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:26:07,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:07,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:26:07,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:26:07,901 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 440 [2024-11-20 13:26:07,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 354 transitions, 784 flow. Second operand has 6 states, 6 states have (on average 307.6666666666667) internal successors, (1846), 6 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:07,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:07,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 440 [2024-11-20 13:26:07,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:20,263 INFO L124 PetriNetUnfolderBase]: 25677/99723 cut-off events. [2024-11-20 13:26:20,263 INFO L125 PetriNetUnfolderBase]: For 2524/2529 co-relation queries the response was YES. [2024-11-20 13:26:20,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140723 conditions, 99723 events. 25677/99723 cut-off events. For 2524/2529 co-relation queries the response was YES. Maximal size of possible extension queue 1701. Compared 1472148 event pairs, 14072 based on Foata normal form. 0/89119 useless extension candidates. Maximal degree in co-relation 140715. Up to 29852 conditions per place. [2024-11-20 13:26:21,733 INFO L140 encePairwiseOnDemand]: 409/440 looper letters, 111 selfloop transitions, 94 changer transitions 0/505 dead transitions. [2024-11-20 13:26:21,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 505 transitions, 1536 flow [2024-11-20 13:26:21,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:26:21,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:26:21,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2042 transitions. [2024-11-20 13:26:21,738 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7734848484848484 [2024-11-20 13:26:21,738 INFO L175 Difference]: Start difference. First operand has 345 places, 354 transitions, 784 flow. Second operand 6 states and 2042 transitions. [2024-11-20 13:26:21,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 505 transitions, 1536 flow [2024-11-20 13:26:21,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 505 transitions, 1518 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:26:21,768 INFO L231 Difference]: Finished difference. Result has 352 places, 451 transitions, 1338 flow [2024-11-20 13:26:21,769 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=440, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1338, PETRI_PLACES=352, PETRI_TRANSITIONS=451} [2024-11-20 13:26:21,769 INFO L277 CegarLoopForPetriNet]: 401 programPoint places, -49 predicate places. [2024-11-20 13:26:21,770 INFO L471 AbstractCegarLoop]: Abstraction has has 352 places, 451 transitions, 1338 flow [2024-11-20 13:26:21,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 307.6666666666667) internal successors, (1846), 6 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:21,771 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:21,771 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:21,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 13:26:21,771 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-11-20 13:26:21,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:21,772 INFO L85 PathProgramCache]: Analyzing trace with hash -421166782, now seen corresponding path program 1 times [2024-11-20 13:26:21,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:21,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726470949] [2024-11-20 13:26:21,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:21,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:21,789 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:26:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:21,804 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:26:21,806 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:26:21,806 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2024-11-20 13:26:21,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2024-11-20 13:26:21,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2024-11-20 13:26:21,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2024-11-20 13:26:21,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2024-11-20 13:26:21,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2024-11-20 13:26:21,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2024-11-20 13:26:21,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2024-11-20 13:26:21,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2024-11-20 13:26:21,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2024-11-20 13:26:21,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2024-11-20 13:26:21,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2024-11-20 13:26:21,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2024-11-20 13:26:21,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2024-11-20 13:26:21,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2024-11-20 13:26:21,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2024-11-20 13:26:21,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2024-11-20 13:26:21,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2024-11-20 13:26:21,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2024-11-20 13:26:21,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2024-11-20 13:26:21,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2024-11-20 13:26:21,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2024-11-20 13:26:21,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2024-11-20 13:26:21,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2024-11-20 13:26:21,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2024-11-20 13:26:21,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2024-11-20 13:26:21,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2024-11-20 13:26:21,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2024-11-20 13:26:21,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2024-11-20 13:26:21,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2024-11-20 13:26:21,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2024-11-20 13:26:21,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2024-11-20 13:26:21,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2024-11-20 13:26:21,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2024-11-20 13:26:21,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2024-11-20 13:26:21,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2024-11-20 13:26:21,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2024-11-20 13:26:21,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2024-11-20 13:26:21,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2024-11-20 13:26:21,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2024-11-20 13:26:21,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2024-11-20 13:26:21,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2024-11-20 13:26:21,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2024-11-20 13:26:21,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2024-11-20 13:26:21,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2024-11-20 13:26:21,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2024-11-20 13:26:21,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2024-11-20 13:26:21,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2024-11-20 13:26:21,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2024-11-20 13:26:21,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2024-11-20 13:26:21,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2024-11-20 13:26:21,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2024-11-20 13:26:21,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2024-11-20 13:26:21,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2024-11-20 13:26:21,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2024-11-20 13:26:21,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2024-11-20 13:26:21,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2024-11-20 13:26:21,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2024-11-20 13:26:21,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2024-11-20 13:26:21,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2024-11-20 13:26:21,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2024-11-20 13:26:21,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2024-11-20 13:26:21,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2024-11-20 13:26:21,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2024-11-20 13:26:21,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2024-11-20 13:26:21,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 13:26:21,817 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 13:26:21,818 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:26:21,818 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-20 13:26:21,928 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:26:21,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 526 places, 578 transitions, 1184 flow [2024-11-20 13:26:22,074 INFO L124 PetriNetUnfolderBase]: 65/620 cut-off events. [2024-11-20 13:26:22,075 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-20 13:26:22,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 639 conditions, 620 events. 65/620 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3038 event pairs, 0 based on Foata normal form. 0/486 useless extension candidates. Maximal degree in co-relation 559. Up to 10 conditions per place. [2024-11-20 13:26:22,095 INFO L82 GeneralOperation]: Start removeDead. Operand has 526 places, 578 transitions, 1184 flow [2024-11-20 13:26:22,106 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 526 places, 578 transitions, 1184 flow [2024-11-20 13:26:22,107 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:26:22,107 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;@6790905b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:26:22,108 INFO L334 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2024-11-20 13:26:22,109 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:26:22,109 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2024-11-20 13:26:22,109 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:26:22,110 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:22,110 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] [2024-11-20 13:26:22,110 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2024-11-20 13:26:22,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:22,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1765395577, now seen corresponding path program 1 times [2024-11-20 13:26:22,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:22,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274426293] [2024-11-20 13:26:22,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:22,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:22,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:26:22,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:22,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274426293] [2024-11-20 13:26:22,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274426293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:22,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:22,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 13:26:22,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923673432] [2024-11-20 13:26:22,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:22,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 13:26:22,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:22,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 13:26:22,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 13:26:22,131 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 578 [2024-11-20 13:26:22,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 578 transitions, 1184 flow. Second operand has 2 states, 2 states have (on average 445.0) internal successors, (890), 2 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:22,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:22,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 578 [2024-11-20 13:26:22,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:31,198 INFO L124 PetriNetUnfolderBase]: 8668/56251 cut-off events. [2024-11-20 13:26:31,199 INFO L125 PetriNetUnfolderBase]: For 3752/3752 co-relation queries the response was YES. [2024-11-20 13:26:31,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67795 conditions, 56251 events. 8668/56251 cut-off events. For 3752/3752 co-relation queries the response was YES. Maximal size of possible extension queue 1209. Compared 870240 event pairs, 6804 based on Foata normal form. 15315/65671 useless extension candidates. Maximal degree in co-relation 56474. Up to 9605 conditions per place. [2024-11-20 13:26:32,009 INFO L140 encePairwiseOnDemand]: 484/578 looper letters, 28 selfloop transitions, 0 changer transitions 0/453 dead transitions. [2024-11-20 13:26:32,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 453 transitions, 990 flow [2024-11-20 13:26:32,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 13:26:32,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-20 13:26:32,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1010 transitions. [2024-11-20 13:26:32,012 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8737024221453287 [2024-11-20 13:26:32,013 INFO L175 Difference]: Start difference. First operand has 526 places, 578 transitions, 1184 flow. Second operand 2 states and 1010 transitions. [2024-11-20 13:26:32,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 453 transitions, 990 flow [2024-11-20 13:26:32,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 453 transitions, 984 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-20 13:26:32,022 INFO L231 Difference]: Finished difference. Result has 447 places, 453 transitions, 928 flow [2024-11-20 13:26:32,022 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=578, PETRI_DIFFERENCE_MINUEND_FLOW=928, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=928, PETRI_PLACES=447, PETRI_TRANSITIONS=453} [2024-11-20 13:26:32,023 INFO L277 CegarLoopForPetriNet]: 526 programPoint places, -79 predicate places. [2024-11-20 13:26:32,023 INFO L471 AbstractCegarLoop]: Abstraction has has 447 places, 453 transitions, 928 flow [2024-11-20 13:26:32,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 445.0) internal successors, (890), 2 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:32,024 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:32,024 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] [2024-11-20 13:26:32,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 13:26:32,025 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2024-11-20 13:26:32,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:32,025 INFO L85 PathProgramCache]: Analyzing trace with hash 33141564, now seen corresponding path program 1 times [2024-11-20 13:26:32,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:32,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437080212] [2024-11-20 13:26:32,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:32,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:32,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:26:32,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:32,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437080212] [2024-11-20 13:26:32,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437080212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:32,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:32,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:26:32,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678643121] [2024-11-20 13:26:32,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:32,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:26:32,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:32,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:26:32,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:26:32,089 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 578 [2024-11-20 13:26:32,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 453 transitions, 928 flow. Second operand has 3 states, 3 states have (on average 429.3333333333333) internal successors, (1288), 3 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:32,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:32,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 578 [2024-11-20 13:26:32,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand