./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_41-pt_rwlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_41-pt_rwlock.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 fef1217f8a35a342f6e4927c3581e159c4208b83ce3f67c4227091859235df56 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:51:04,798 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:51:04,886 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:51:04,893 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:51:04,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:51:04,926 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:51:04,928 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:51:04,928 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:51:04,929 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:51:04,930 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:51:04,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:51:04,931 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:51:04,931 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:51:04,932 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:51:04,932 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:51:04,932 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:51:04,932 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:51:04,934 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:51:04,934 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:51:04,934 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:51:04,935 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:51:04,936 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:51:04,937 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:51:04,937 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:51:04,937 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:51:04,938 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:51:04,938 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:51:04,938 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:51:04,938 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:51:04,939 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:51:04,939 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:51:04,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:51:04,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:51:04,940 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:51:04,940 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:51:04,940 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:51:04,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:51:04,941 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:51:04,941 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:51:04,941 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:51:04,941 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:51:04,942 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fef1217f8a35a342f6e4927c3581e159c4208b83ce3f67c4227091859235df56 [2024-11-09 06:51:05,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:51:05,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:51:05,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:51:05,242 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:51:05,242 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:51:05,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_41-pt_rwlock.i [2024-11-09 06:51:06,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:51:06,999 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:51:07,000 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_41-pt_rwlock.i [2024-11-09 06:51:07,019 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a862afa1/2c4f1caef377494cb10a4b33c4c27dbd/FLAGe760bd95a [2024-11-09 06:51:07,038 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a862afa1/2c4f1caef377494cb10a4b33c4c27dbd [2024-11-09 06:51:07,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:51:07,042 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:51:07,045 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:51:07,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:51:07,051 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:51:07,052 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:51:07" (1/1) ... [2024-11-09 06:51:07,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dc3bca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:07, skipping insertion in model container [2024-11-09 06:51:07,055 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:51:07" (1/1) ... [2024-11-09 06:51:07,109 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:51:07,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:51:07,628 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:51:07,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:51:07,756 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:51:07,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:07 WrapperNode [2024-11-09 06:51:07,757 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:51:07,759 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:51:07,759 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:51:07,759 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:51:07,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:07" (1/1) ... [2024-11-09 06:51:07,800 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:07" (1/1) ... [2024-11-09 06:51:07,827 INFO L138 Inliner]: procedures = 263, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2024-11-09 06:51:07,828 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:51:07,829 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:51:07,829 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:51:07,830 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:51:07,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:07" (1/1) ... [2024-11-09 06:51:07,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:07" (1/1) ... [2024-11-09 06:51:07,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:07" (1/1) ... [2024-11-09 06:51:07,844 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:07" (1/1) ... [2024-11-09 06:51:07,872 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:07" (1/1) ... [2024-11-09 06:51:07,873 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:07" (1/1) ... [2024-11-09 06:51:07,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:07" (1/1) ... [2024-11-09 06:51:07,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:07" (1/1) ... [2024-11-09 06:51:07,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:51:07,887 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:51:07,887 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:51:07,887 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:51:07,888 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:07" (1/1) ... [2024-11-09 06:51:07,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:51:07,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:07,923 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 06:51:07,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 06:51:07,977 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2024-11-09 06:51:07,977 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2024-11-09 06:51:07,978 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2024-11-09 06:51:07,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:51:07,978 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 06:51:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 06:51:07,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:51:07,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:51:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:51:07,980 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:51:08,118 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:51:08,120 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:51:08,282 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:51:08,282 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:51:08,326 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:51:08,326 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:51:08,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:51:08 BoogieIcfgContainer [2024-11-09 06:51:08,327 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:51:08,330 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:51:08,330 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:51:08,334 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:51:08,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:51:07" (1/3) ... [2024-11-09 06:51:08,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678ab6f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:51:08, skipping insertion in model container [2024-11-09 06:51:08,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:07" (2/3) ... [2024-11-09 06:51:08,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678ab6f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:51:08, skipping insertion in model container [2024-11-09 06:51:08,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:51:08" (3/3) ... [2024-11-09 06:51:08,339 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_41-pt_rwlock.i [2024-11-09 06:51:08,362 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:51:08,363 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 06:51:08,363 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:51:08,427 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 06:51:08,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 75 transitions, 157 flow [2024-11-09 06:51:08,515 INFO L124 PetriNetUnfolderBase]: 0/74 cut-off events. [2024-11-09 06:51:08,516 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:51:08,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 74 events. 0/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-09 06:51:08,520 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 75 transitions, 157 flow [2024-11-09 06:51:08,523 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 69 transitions, 141 flow [2024-11-09 06:51:08,542 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:51:08,556 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;@17435d1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:51:08,556 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-09 06:51:08,575 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:51:08,577 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2024-11-09 06:51:08,578 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:51:08,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:08,579 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] [2024-11-09 06:51:08,579 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 06:51:08,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:08,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1788025649, now seen corresponding path program 1 times [2024-11-09 06:51:08,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:08,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807868509] [2024-11-09 06:51:08,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:08,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:08,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:08,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:08,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807868509] [2024-11-09 06:51:08,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807868509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:08,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:08,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:51:08,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527851284] [2024-11-09 06:51:08,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:08,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:51:08,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:08,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:51:08,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:51:08,969 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 75 [2024-11-09 06:51:08,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 69 transitions, 141 flow. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:08,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:08,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 75 [2024-11-09 06:51:08,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:09,095 INFO L124 PetriNetUnfolderBase]: 22/234 cut-off events. [2024-11-09 06:51:09,095 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:51:09,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 234 events. 22/234 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1004 event pairs, 7 based on Foata normal form. 0/205 useless extension candidates. Maximal degree in co-relation 269. Up to 38 conditions per place. [2024-11-09 06:51:09,100 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 14 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2024-11-09 06:51:09,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 75 transitions, 189 flow [2024-11-09 06:51:09,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:51:09,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:51:09,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 206 transitions. [2024-11-09 06:51:09,116 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9155555555555556 [2024-11-09 06:51:09,118 INFO L175 Difference]: Start difference. First operand has 73 places, 69 transitions, 141 flow. Second operand 3 states and 206 transitions. [2024-11-09 06:51:09,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 75 transitions, 189 flow [2024-11-09 06:51:09,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 75 transitions, 188 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:51:09,128 INFO L231 Difference]: Finished difference. Result has 75 places, 71 transitions, 168 flow [2024-11-09 06:51:09,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=75, PETRI_TRANSITIONS=71} [2024-11-09 06:51:09,136 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 2 predicate places. [2024-11-09 06:51:09,137 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 71 transitions, 168 flow [2024-11-09 06:51:09,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:09,138 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:09,138 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:09,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:51:09,138 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 06:51:09,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:09,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1421793796, now seen corresponding path program 1 times [2024-11-09 06:51:09,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:09,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422378679] [2024-11-09 06:51:09,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:09,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:09,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:09,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:09,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422378679] [2024-11-09 06:51:09,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422378679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:09,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:09,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:51:09,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301892823] [2024-11-09 06:51:09,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:09,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:51:09,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:09,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:51:09,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:51:09,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 75 [2024-11-09 06:51:09,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:09,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:09,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 75 [2024-11-09 06:51:09,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:09,349 INFO L124 PetriNetUnfolderBase]: 30/277 cut-off events. [2024-11-09 06:51:09,353 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-09 06:51:09,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 277 events. 30/277 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1328 event pairs, 14 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 372. Up to 60 conditions per place. [2024-11-09 06:51:09,358 INFO L140 encePairwiseOnDemand]: 70/75 looper letters, 15 selfloop transitions, 4 changer transitions 0/76 dead transitions. [2024-11-09 06:51:09,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 76 transitions, 220 flow [2024-11-09 06:51:09,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:51:09,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:51:09,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 204 transitions. [2024-11-09 06:51:09,362 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9066666666666666 [2024-11-09 06:51:09,363 INFO L175 Difference]: Start difference. First operand has 75 places, 71 transitions, 168 flow. Second operand 3 states and 204 transitions. [2024-11-09 06:51:09,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 76 transitions, 220 flow [2024-11-09 06:51:09,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 76 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:51:09,366 INFO L231 Difference]: Finished difference. Result has 77 places, 74 transitions, 192 flow [2024-11-09 06:51:09,368 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=192, PETRI_PLACES=77, PETRI_TRANSITIONS=74} [2024-11-09 06:51:09,369 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 4 predicate places. [2024-11-09 06:51:09,369 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 74 transitions, 192 flow [2024-11-09 06:51:09,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:09,369 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:09,369 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:09,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:51:09,370 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 06:51:09,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:09,371 INFO L85 PathProgramCache]: Analyzing trace with hash -210870785, now seen corresponding path program 1 times [2024-11-09 06:51:09,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:09,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116937967] [2024-11-09 06:51:09,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:09,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:09,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:09,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:09,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116937967] [2024-11-09 06:51:09,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116937967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:09,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:09,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:51:09,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218940224] [2024-11-09 06:51:09,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:09,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:51:09,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:09,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:51:09,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:51:09,455 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 75 [2024-11-09 06:51:09,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 74 transitions, 192 flow. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:09,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:09,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 75 [2024-11-09 06:51:09,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:09,528 INFO L124 PetriNetUnfolderBase]: 49/348 cut-off events. [2024-11-09 06:51:09,528 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-09 06:51:09,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 348 events. 49/348 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1819 event pairs, 11 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 504. Up to 84 conditions per place. [2024-11-09 06:51:09,533 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 13 selfloop transitions, 4 changer transitions 1/80 dead transitions. [2024-11-09 06:51:09,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 80 transitions, 240 flow [2024-11-09 06:51:09,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:51:09,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:51:09,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 206 transitions. [2024-11-09 06:51:09,536 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9155555555555556 [2024-11-09 06:51:09,536 INFO L175 Difference]: Start difference. First operand has 77 places, 74 transitions, 192 flow. Second operand 3 states and 206 transitions. [2024-11-09 06:51:09,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 80 transitions, 240 flow [2024-11-09 06:51:09,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 80 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:51:09,541 INFO L231 Difference]: Finished difference. Result has 78 places, 76 transitions, 212 flow [2024-11-09 06:51:09,541 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=78, PETRI_TRANSITIONS=76} [2024-11-09 06:51:09,542 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 5 predicate places. [2024-11-09 06:51:09,543 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 76 transitions, 212 flow [2024-11-09 06:51:09,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:09,543 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:09,543 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:09,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:51:09,544 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 06:51:09,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:09,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1876346815, now seen corresponding path program 1 times [2024-11-09 06:51:09,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:09,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928110057] [2024-11-09 06:51:09,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:09,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:09,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:09,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:09,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928110057] [2024-11-09 06:51:09,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928110057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:09,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:09,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:51:09,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865908685] [2024-11-09 06:51:09,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:09,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:51:09,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:09,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:51:09,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:51:09,635 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 75 [2024-11-09 06:51:09,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 76 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:09,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:09,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 75 [2024-11-09 06:51:09,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:09,693 INFO L124 PetriNetUnfolderBase]: 66/390 cut-off events. [2024-11-09 06:51:09,693 INFO L125 PetriNetUnfolderBase]: For 101/119 co-relation queries the response was YES. [2024-11-09 06:51:09,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 719 conditions, 390 events. 66/390 cut-off events. For 101/119 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2203 event pairs, 21 based on Foata normal form. 1/369 useless extension candidates. Maximal degree in co-relation 685. Up to 130 conditions per place. [2024-11-09 06:51:09,698 INFO L140 encePairwiseOnDemand]: 70/75 looper letters, 14 selfloop transitions, 3 changer transitions 4/81 dead transitions. [2024-11-09 06:51:09,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 81 transitions, 266 flow [2024-11-09 06:51:09,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:51:09,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:51:09,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 199 transitions. [2024-11-09 06:51:09,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8844444444444445 [2024-11-09 06:51:09,702 INFO L175 Difference]: Start difference. First operand has 78 places, 76 transitions, 212 flow. Second operand 3 states and 199 transitions. [2024-11-09 06:51:09,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 81 transitions, 266 flow [2024-11-09 06:51:09,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 81 transitions, 256 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:51:09,706 INFO L231 Difference]: Finished difference. Result has 80 places, 76 transitions, 222 flow [2024-11-09 06:51:09,707 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=80, PETRI_TRANSITIONS=76} [2024-11-09 06:51:09,708 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 7 predicate places. [2024-11-09 06:51:09,709 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 76 transitions, 222 flow [2024-11-09 06:51:09,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:09,709 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:09,709 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:09,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:51:09,710 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 06:51:09,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:09,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1182062264, now seen corresponding path program 1 times [2024-11-09 06:51:09,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:09,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919060413] [2024-11-09 06:51:09,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:09,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:09,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:09,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:09,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919060413] [2024-11-09 06:51:09,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919060413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:09,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:09,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:51:09,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226398782] [2024-11-09 06:51:09,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:09,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:51:09,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:09,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:51:09,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:51:10,000 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 75 [2024-11-09 06:51:10,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 76 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:10,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:10,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 75 [2024-11-09 06:51:10,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:10,045 INFO L124 PetriNetUnfolderBase]: 14/209 cut-off events. [2024-11-09 06:51:10,045 INFO L125 PetriNetUnfolderBase]: For 69/72 co-relation queries the response was YES. [2024-11-09 06:51:10,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 209 events. 14/209 cut-off events. For 69/72 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 918 event pairs, 0 based on Foata normal form. 23/226 useless extension candidates. Maximal degree in co-relation 353. Up to 39 conditions per place. [2024-11-09 06:51:10,046 INFO L140 encePairwiseOnDemand]: 71/75 looper letters, 3 selfloop transitions, 1 changer transitions 1/71 dead transitions. [2024-11-09 06:51:10,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 71 transitions, 222 flow [2024-11-09 06:51:10,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:51:10,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:51:10,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 212 transitions. [2024-11-09 06:51:10,051 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9422222222222222 [2024-11-09 06:51:10,051 INFO L175 Difference]: Start difference. First operand has 80 places, 76 transitions, 222 flow. Second operand 3 states and 212 transitions. [2024-11-09 06:51:10,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 71 transitions, 222 flow [2024-11-09 06:51:10,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 71 transitions, 216 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:51:10,056 INFO L231 Difference]: Finished difference. Result has 75 places, 70 transitions, 209 flow [2024-11-09 06:51:10,057 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=209, PETRI_PLACES=75, PETRI_TRANSITIONS=70} [2024-11-09 06:51:10,058 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 2 predicate places. [2024-11-09 06:51:10,058 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 70 transitions, 209 flow [2024-11-09 06:51:10,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:10,058 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:10,058 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:10,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:51:10,059 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 06:51:10,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:10,061 INFO L85 PathProgramCache]: Analyzing trace with hash 466798476, now seen corresponding path program 2 times [2024-11-09 06:51:10,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:10,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88986285] [2024-11-09 06:51:10,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:10,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:10,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:10,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:10,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88986285] [2024-11-09 06:51:10,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88986285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:10,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:10,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:51:10,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524173120] [2024-11-09 06:51:10,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:10,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:51:10,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:10,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:51:10,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:51:10,203 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 75 [2024-11-09 06:51:10,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 70 transitions, 209 flow. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:10,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:10,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 75 [2024-11-09 06:51:10,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:10,213 INFO L124 PetriNetUnfolderBase]: 0/42 cut-off events. [2024-11-09 06:51:10,213 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-11-09 06:51:10,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 42 events. 0/42 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 2/44 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2024-11-09 06:51:10,213 INFO L140 encePairwiseOnDemand]: 73/75 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2024-11-09 06:51:10,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 42 transitions, 111 flow [2024-11-09 06:51:10,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:51:10,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:51:10,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2024-11-09 06:51:10,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9244444444444444 [2024-11-09 06:51:10,216 INFO L175 Difference]: Start difference. First operand has 75 places, 70 transitions, 209 flow. Second operand 3 states and 208 transitions. [2024-11-09 06:51:10,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 42 transitions, 111 flow [2024-11-09 06:51:10,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 42 transitions, 94 flow, removed 3 selfloop flow, removed 8 redundant places. [2024-11-09 06:51:10,217 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2024-11-09 06:51:10,217 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2024-11-09 06:51:10,217 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, -24 predicate places. [2024-11-09 06:51:10,218 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2024-11-09 06:51:10,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:10,222 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2024-11-09 06:51:10,223 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-11-09 06:51:10,223 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-11-09 06:51:10,223 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 10 remaining) [2024-11-09 06:51:10,223 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-11-09 06:51:10,224 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-11-09 06:51:10,224 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2024-11-09 06:51:10,225 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-11-09 06:51:10,226 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-11-09 06:51:10,226 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-11-09 06:51:10,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:51:10,227 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-11-09 06:51:10,233 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 06:51:10,233 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:51:10,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:51:10 BasicIcfg [2024-11-09 06:51:10,240 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:51:10,240 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:51:10,240 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:51:10,241 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:51:10,241 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:51:08" (3/4) ... [2024-11-09 06:51:10,243 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 06:51:10,246 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-09 06:51:10,250 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 06:51:10,251 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 06:51:10,251 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 06:51:10,340 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 06:51:10,341 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 06:51:10,341 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:51:10,342 INFO L158 Benchmark]: Toolchain (without parser) took 3299.67ms. Allocated memory was 159.4MB in the beginning and 222.3MB in the end (delta: 62.9MB). Free memory was 99.2MB in the beginning and 140.0MB in the end (delta: -40.8MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2024-11-09 06:51:10,342 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 121.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:51:10,343 INFO L158 Benchmark]: CACSL2BoogieTranslator took 712.75ms. Allocated memory is still 159.4MB. Free memory was 98.8MB in the beginning and 68.2MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-09 06:51:10,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.42ms. Allocated memory is still 159.4MB. Free memory was 68.2MB in the beginning and 127.8MB in the end (delta: -59.7MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2024-11-09 06:51:10,344 INFO L158 Benchmark]: Boogie Preprocessor took 57.35ms. Allocated memory was 159.4MB in the beginning and 222.3MB in the end (delta: 62.9MB). Free memory was 127.8MB in the beginning and 192.8MB in the end (delta: -65.0MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2024-11-09 06:51:10,344 INFO L158 Benchmark]: RCFGBuilder took 440.38ms. Allocated memory is still 222.3MB. Free memory was 192.8MB in the beginning and 177.1MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 06:51:10,346 INFO L158 Benchmark]: TraceAbstraction took 1909.63ms. Allocated memory is still 222.3MB. Free memory was 176.1MB in the beginning and 144.2MB in the end (delta: 31.9MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2024-11-09 06:51:10,346 INFO L158 Benchmark]: Witness Printer took 100.89ms. Allocated memory is still 222.3MB. Free memory was 144.2MB in the beginning and 140.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:51:10,348 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 121.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 712.75ms. Allocated memory is still 159.4MB. Free memory was 98.8MB in the beginning and 68.2MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.42ms. Allocated memory is still 159.4MB. Free memory was 68.2MB in the beginning and 127.8MB in the end (delta: -59.7MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.35ms. Allocated memory was 159.4MB in the beginning and 222.3MB in the end (delta: 62.9MB). Free memory was 127.8MB in the beginning and 192.8MB in the end (delta: -65.0MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * RCFGBuilder took 440.38ms. Allocated memory is still 222.3MB. Free memory was 192.8MB in the beginning and 177.1MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1909.63ms. Allocated memory is still 222.3MB. Free memory was 176.1MB in the beginning and 144.2MB in the end (delta: 31.9MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. * Witness Printer took 100.89ms. Allocated memory is still 222.3MB. Free memory was 144.2MB in the beginning and 140.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 931]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 932]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 932]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 922]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 922]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 101 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 130 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 157 IncrementalHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 38 mSDtfsCounter, 157 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=4, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 216 NumberOfCodeBlocks, 216 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 318 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 06:51:10,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE