./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/goblint-regression/04-mutex_22-deref_read.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 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/goblint-regression/04-mutex_22-deref_read.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 8d306ff8cfbc22ceebe04735dbb58cf2d83206c78fa42d12e01716373b332b54 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:22:33,013 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:22:33,104 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:22:33,110 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:22:33,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:22:33,131 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:22:33,131 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:22:33,131 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:22:33,132 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:22:33,132 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:22:33,132 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:22:33,133 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:22:33,133 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:22:33,133 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:22:33,133 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:22:33,134 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:22:33,134 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:22:33,134 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:22:33,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:22:33,135 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:22:33,135 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:22:33,137 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:22:33,137 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:22:33,138 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:22:33,138 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:22:33,138 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:22:33,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:22:33,139 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:22:33,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:22:33,140 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:22:33,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:22:33,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:22:33,144 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:22:33,145 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:22:33,145 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:22:33,145 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:22:33,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:22:33,146 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:22:33,146 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:22:33,146 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:22:33,146 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:22:33,149 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d306ff8cfbc22ceebe04735dbb58cf2d83206c78fa42d12e01716373b332b54 [2024-10-24 15:22:33,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:22:33,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:22:33,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:22:33,428 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:22:33,428 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:22:33,429 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_22-deref_read.i [2024-10-24 15:22:34,843 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:22:35,117 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:22:35,119 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_22-deref_read.i [2024-10-24 15:22:35,137 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66b3c208c/986f03e780274c779545434dd38effe9/FLAG3c1460b57 [2024-10-24 15:22:35,431 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66b3c208c/986f03e780274c779545434dd38effe9 [2024-10-24 15:22:35,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:22:35,435 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:22:35,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:22:35,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:22:35,441 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:22:35,441 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:22:35" (1/1) ... [2024-10-24 15:22:35,442 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@185df7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:35, skipping insertion in model container [2024-10-24 15:22:35,442 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:22:35" (1/1) ... [2024-10-24 15:22:35,482 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:22:35,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:22:35,851 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:22:35,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:22:35,941 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:22:35,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:35 WrapperNode [2024-10-24 15:22:35,942 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:22:35,943 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:22:35,943 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:22:35,943 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:22:35,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:35" (1/1) ... [2024-10-24 15:22:35,970 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:35" (1/1) ... [2024-10-24 15:22:35,993 INFO L138 Inliner]: procedures = 162, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2024-10-24 15:22:35,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:22:35,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:22:35,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:22:35,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:22:36,003 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:35" (1/1) ... [2024-10-24 15:22:36,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:35" (1/1) ... [2024-10-24 15:22:36,007 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:35" (1/1) ... [2024-10-24 15:22:36,007 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:35" (1/1) ... [2024-10-24 15:22:36,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:35" (1/1) ... [2024-10-24 15:22:36,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:35" (1/1) ... [2024-10-24 15:22:36,016 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:35" (1/1) ... [2024-10-24 15:22:36,017 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:35" (1/1) ... [2024-10-24 15:22:36,023 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:22:36,024 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:22:36,024 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:22:36,024 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:22:36,025 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:35" (1/1) ... [2024-10-24 15:22:36,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:22:36,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:22:36,060 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) [2024-10-24 15:22:36,063 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 [2024-10-24 15:22:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:22:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:22:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:22:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 15:22:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 15:22:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:22:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:22:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:22:36,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:22:36,117 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:22:36,233 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:22:36,234 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:22:36,378 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:22:36,378 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:22:36,413 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:22:36,413 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 15:22:36,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:22:36 BoogieIcfgContainer [2024-10-24 15:22:36,414 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:22:36,417 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:22:36,418 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:22:36,425 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:22:36,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:22:35" (1/3) ... [2024-10-24 15:22:36,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d662142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:22:36, skipping insertion in model container [2024-10-24 15:22:36,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:35" (2/3) ... [2024-10-24 15:22:36,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d662142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:22:36, skipping insertion in model container [2024-10-24 15:22:36,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:22:36" (3/3) ... [2024-10-24 15:22:36,428 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_22-deref_read.i [2024-10-24 15:22:36,460 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:22:36,461 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-24 15:22:36,461 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:22:36,546 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 15:22:36,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 72 transitions, 148 flow [2024-10-24 15:22:36,612 INFO L124 PetriNetUnfolderBase]: 0/71 cut-off events. [2024-10-24 15:22:36,613 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:22:36,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 0/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-24 15:22:36,617 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 72 transitions, 148 flow [2024-10-24 15:22:36,620 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 71 transitions, 145 flow [2024-10-24 15:22:36,629 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:22:36,636 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;@5251f530, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:22:36,636 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-24 15:22:36,645 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:22:36,645 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-10-24 15:22:36,645 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:22:36,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:36,646 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] [2024-10-24 15:22:36,647 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:22:36,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:36,653 INFO L85 PathProgramCache]: Analyzing trace with hash 196604330, now seen corresponding path program 1 times [2024-10-24 15:22:36,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:36,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589359005] [2024-10-24 15:22:36,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:36,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:36,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:36,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:36,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589359005] [2024-10-24 15:22:36,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589359005] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:36,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:36,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:22:36,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787871120] [2024-10-24 15:22:36,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:36,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:22:36,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:36,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:22:36,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:22:36,974 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 72 [2024-10-24 15:22:36,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2024-10-24 15:22:36,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:36,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 72 [2024-10-24 15:22:36,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:37,054 INFO L124 PetriNetUnfolderBase]: 16/173 cut-off events. [2024-10-24 15:22:37,058 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:22:37,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 173 events. 16/173 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 551 event pairs, 9 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 192. Up to 39 conditions per place. [2024-10-24 15:22:37,065 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 10 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2024-10-24 15:22:37,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 72 transitions, 171 flow [2024-10-24 15:22:37,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:22:37,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:22:37,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-10-24 15:22:37,080 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9120370370370371 [2024-10-24 15:22:37,083 INFO L175 Difference]: Start difference. First operand has 75 places, 71 transitions, 145 flow. Second operand 3 states and 197 transitions. [2024-10-24 15:22:37,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 72 transitions, 171 flow [2024-10-24 15:22:37,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 72 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:22:37,092 INFO L231 Difference]: Finished difference. Result has 75 places, 71 transitions, 154 flow [2024-10-24 15:22:37,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=75, PETRI_TRANSITIONS=71} [2024-10-24 15:22:37,098 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, 0 predicate places. [2024-10-24 15:22:37,101 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 71 transitions, 154 flow [2024-10-24 15:22:37,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2024-10-24 15:22:37,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:37,102 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] [2024-10-24 15:22:37,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:22:37,102 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:22:37,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:37,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1510144273, now seen corresponding path program 1 times [2024-10-24 15:22:37,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:37,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132225126] [2024-10-24 15:22:37,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:37,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:37,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:37,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:37,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132225126] [2024-10-24 15:22:37,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132225126] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:37,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:37,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:22:37,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079793902] [2024-10-24 15:22:37,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:37,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:22:37,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:37,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:22:37,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:22:37,238 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 72 [2024-10-24 15:22:37,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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) [2024-10-24 15:22:37,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:37,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 72 [2024-10-24 15:22:37,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:37,298 INFO L124 PetriNetUnfolderBase]: 17/163 cut-off events. [2024-10-24 15:22:37,299 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:22:37,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 163 events. 17/163 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 510 event pairs, 12 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 192. Up to 36 conditions per place. [2024-10-24 15:22:37,302 INFO L140 encePairwiseOnDemand]: 69/72 looper letters, 12 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2024-10-24 15:22:37,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 72 transitions, 184 flow [2024-10-24 15:22:37,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:22:37,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:22:37,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 192 transitions. [2024-10-24 15:22:37,306 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-10-24 15:22:37,307 INFO L175 Difference]: Start difference. First operand has 75 places, 71 transitions, 154 flow. Second operand 3 states and 192 transitions. [2024-10-24 15:22:37,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 72 transitions, 184 flow [2024-10-24 15:22:37,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 72 transitions, 184 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:22:37,310 INFO L231 Difference]: Finished difference. Result has 76 places, 70 transitions, 156 flow [2024-10-24 15:22:37,310 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=76, PETRI_TRANSITIONS=70} [2024-10-24 15:22:37,311 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, 1 predicate places. [2024-10-24 15:22:37,312 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 70 transitions, 156 flow [2024-10-24 15:22:37,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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) [2024-10-24 15:22:37,312 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:37,312 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] [2024-10-24 15:22:37,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:22:37,313 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:22:37,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:37,315 INFO L85 PathProgramCache]: Analyzing trace with hash 866752651, now seen corresponding path program 1 times [2024-10-24 15:22:37,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:37,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784562655] [2024-10-24 15:22:37,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:37,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:37,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:37,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:37,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:37,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784562655] [2024-10-24 15:22:37,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784562655] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:37,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:37,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:22:37,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078281679] [2024-10-24 15:22:37,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:37,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:22:37,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:37,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:22:37,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:22:37,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 72 [2024-10-24 15:22:37,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 70 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 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) [2024-10-24 15:22:37,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:37,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 72 [2024-10-24 15:22:37,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:38,117 INFO L124 PetriNetUnfolderBase]: 79/330 cut-off events. [2024-10-24 15:22:38,118 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:22:38,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 330 events. 79/330 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1458 event pairs, 25 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 504. Up to 133 conditions per place. [2024-10-24 15:22:38,125 INFO L140 encePairwiseOnDemand]: 61/72 looper letters, 21 selfloop transitions, 22 changer transitions 4/99 dead transitions. [2024-10-24 15:22:38,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 99 transitions, 308 flow [2024-10-24 15:22:38,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:22:38,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:22:38,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 372 transitions. [2024-10-24 15:22:38,130 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8611111111111112 [2024-10-24 15:22:38,130 INFO L175 Difference]: Start difference. First operand has 76 places, 70 transitions, 156 flow. Second operand 6 states and 372 transitions. [2024-10-24 15:22:38,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 99 transitions, 308 flow [2024-10-24 15:22:38,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 99 transitions, 304 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:22:38,134 INFO L231 Difference]: Finished difference. Result has 84 places, 91 transitions, 302 flow [2024-10-24 15:22:38,134 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=302, PETRI_PLACES=84, PETRI_TRANSITIONS=91} [2024-10-24 15:22:38,136 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, 9 predicate places. [2024-10-24 15:22:38,136 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 91 transitions, 302 flow [2024-10-24 15:22:38,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 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) [2024-10-24 15:22:38,137 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:38,137 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] [2024-10-24 15:22:38,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:22:38,137 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:22:38,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:38,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1839668097, now seen corresponding path program 1 times [2024-10-24 15:22:38,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:38,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778726422] [2024-10-24 15:22:38,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:38,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:38,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:38,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:38,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778726422] [2024-10-24 15:22:38,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778726422] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:38,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:38,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:22:38,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68300626] [2024-10-24 15:22:38,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:38,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:22:38,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:38,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:22:38,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:22:38,193 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 72 [2024-10-24 15:22:38,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 91 transitions, 302 flow. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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) [2024-10-24 15:22:38,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:38,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 72 [2024-10-24 15:22:38,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:38,242 INFO L124 PetriNetUnfolderBase]: 50/298 cut-off events. [2024-10-24 15:22:38,242 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-10-24 15:22:38,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 298 events. 50/298 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1230 event pairs, 8 based on Foata normal form. 0/286 useless extension candidates. Maximal degree in co-relation 506. Up to 60 conditions per place. [2024-10-24 15:22:38,245 INFO L140 encePairwiseOnDemand]: 70/72 looper letters, 9 selfloop transitions, 1 changer transitions 0/92 dead transitions. [2024-10-24 15:22:38,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 92 transitions, 324 flow [2024-10-24 15:22:38,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:22:38,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:22:38,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2024-10-24 15:22:38,247 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9259259259259259 [2024-10-24 15:22:38,247 INFO L175 Difference]: Start difference. First operand has 84 places, 91 transitions, 302 flow. Second operand 3 states and 200 transitions. [2024-10-24 15:22:38,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 92 transitions, 324 flow [2024-10-24 15:22:38,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 92 transitions, 324 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:22:38,251 INFO L231 Difference]: Finished difference. Result has 85 places, 90 transitions, 302 flow [2024-10-24 15:22:38,251 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=302, PETRI_PLACES=85, PETRI_TRANSITIONS=90} [2024-10-24 15:22:38,252 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, 10 predicate places. [2024-10-24 15:22:38,252 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 90 transitions, 302 flow [2024-10-24 15:22:38,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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) [2024-10-24 15:22:38,253 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:38,253 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:22:38,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:22:38,253 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:22:38,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:38,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1676141758, now seen corresponding path program 1 times [2024-10-24 15:22:38,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:38,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436629952] [2024-10-24 15:22:38,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:38,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:38,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:38,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:38,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436629952] [2024-10-24 15:22:38,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436629952] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:38,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:38,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:22:38,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568466394] [2024-10-24 15:22:38,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:38,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:22:38,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:38,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:22:38,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:22:38,607 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 72 [2024-10-24 15:22:38,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 90 transitions, 302 flow. Second operand has 6 states, 6 states have (on average 52.833333333333336) internal successors, (317), 6 states have internal predecessors, (317), 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) [2024-10-24 15:22:38,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:38,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 72 [2024-10-24 15:22:38,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:38,764 INFO L124 PetriNetUnfolderBase]: 138/485 cut-off events. [2024-10-24 15:22:38,765 INFO L125 PetriNetUnfolderBase]: For 146/168 co-relation queries the response was YES. [2024-10-24 15:22:38,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 485 events. 138/485 cut-off events. For 146/168 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2407 event pairs, 37 based on Foata normal form. 0/471 useless extension candidates. Maximal degree in co-relation 1094. Up to 235 conditions per place. [2024-10-24 15:22:38,768 INFO L140 encePairwiseOnDemand]: 61/72 looper letters, 39 selfloop transitions, 29 changer transitions 7/125 dead transitions. [2024-10-24 15:22:38,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 125 transitions, 592 flow [2024-10-24 15:22:38,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:22:38,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:22:38,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 357 transitions. [2024-10-24 15:22:38,771 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8263888888888888 [2024-10-24 15:22:38,772 INFO L175 Difference]: Start difference. First operand has 85 places, 90 transitions, 302 flow. Second operand 6 states and 357 transitions. [2024-10-24 15:22:38,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 125 transitions, 592 flow [2024-10-24 15:22:38,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 125 transitions, 591 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:22:38,778 INFO L231 Difference]: Finished difference. Result has 94 places, 114 transitions, 555 flow [2024-10-24 15:22:38,778 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=555, PETRI_PLACES=94, PETRI_TRANSITIONS=114} [2024-10-24 15:22:38,779 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, 19 predicate places. [2024-10-24 15:22:38,779 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 114 transitions, 555 flow [2024-10-24 15:22:38,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.833333333333336) internal successors, (317), 6 states have internal predecessors, (317), 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) [2024-10-24 15:22:38,780 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:38,780 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:22:38,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 15:22:38,780 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:22:38,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:38,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1189653214, now seen corresponding path program 1 times [2024-10-24 15:22:38,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:38,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398201497] [2024-10-24 15:22:38,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:38,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:38,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:38,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:38,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398201497] [2024-10-24 15:22:38,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398201497] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:38,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:38,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:22:38,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946710201] [2024-10-24 15:22:38,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:38,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:22:38,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:38,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:22:38,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:22:38,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 72 [2024-10-24 15:22:38,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 114 transitions, 555 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2024-10-24 15:22:38,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:38,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 72 [2024-10-24 15:22:38,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:38,895 INFO L124 PetriNetUnfolderBase]: 2/109 cut-off events. [2024-10-24 15:22:38,896 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-10-24 15:22:38,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 109 events. 2/109 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 142 event pairs, 1 based on Foata normal form. 2/111 useless extension candidates. Maximal degree in co-relation 181. Up to 12 conditions per place. [2024-10-24 15:22:38,896 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 0 selfloop transitions, 0 changer transitions 67/67 dead transitions. [2024-10-24 15:22:38,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 67 transitions, 219 flow [2024-10-24 15:22:38,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:22:38,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:22:38,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 206 transitions. [2024-10-24 15:22:38,899 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9537037037037037 [2024-10-24 15:22:38,899 INFO L175 Difference]: Start difference. First operand has 94 places, 114 transitions, 555 flow. Second operand 3 states and 206 transitions. [2024-10-24 15:22:38,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 67 transitions, 219 flow [2024-10-24 15:22:38,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 67 transitions, 159 flow, removed 10 selfloop flow, removed 20 redundant places. [2024-10-24 15:22:38,901 INFO L231 Difference]: Finished difference. Result has 74 places, 0 transitions, 0 flow [2024-10-24 15:22:38,901 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=74, PETRI_TRANSITIONS=0} [2024-10-24 15:22:38,902 INFO L277 CegarLoopForPetriNet]: 75 programPoint places, -1 predicate places. [2024-10-24 15:22:38,905 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 0 transitions, 0 flow [2024-10-24 15:22:38,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2024-10-24 15:22:38,909 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2024-10-24 15:22:38,910 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-10-24 15:22:38,910 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-10-24 15:22:38,912 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-10-24 15:22:38,912 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-10-24 15:22:38,912 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-10-24 15:22:38,912 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-10-24 15:22:38,913 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-10-24 15:22:38,913 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-10-24 15:22:38,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 15:22:38,913 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-24 15:22:38,920 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 15:22:38,920 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 15:22:38,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:22:38 BasicIcfg [2024-10-24 15:22:38,925 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 15:22:38,926 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 15:22:38,926 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 15:22:38,926 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 15:22:38,927 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:22:36" (3/4) ... [2024-10-24 15:22:38,928 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 15:22:38,931 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-24 15:22:38,935 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-24 15:22:38,935 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-24 15:22:38,935 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-24 15:22:39,022 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 15:22:39,023 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 15:22:39,023 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 15:22:39,025 INFO L158 Benchmark]: Toolchain (without parser) took 3588.63ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 112.3MB in the beginning and 100.2MB in the end (delta: 12.1MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2024-10-24 15:22:39,025 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:22:39,027 INFO L158 Benchmark]: CACSL2BoogieTranslator took 506.66ms. Allocated memory is still 146.8MB. Free memory was 112.3MB in the beginning and 91.0MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-24 15:22:39,027 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.61ms. Allocated memory is still 146.8MB. Free memory was 91.0MB in the beginning and 88.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:22:39,027 INFO L158 Benchmark]: Boogie Preprocessor took 28.92ms. Allocated memory is still 146.8MB. Free memory was 88.9MB in the beginning and 87.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:22:39,028 INFO L158 Benchmark]: RCFGBuilder took 390.50ms. Allocated memory is still 146.8MB. Free memory was 87.4MB in the beginning and 72.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-24 15:22:39,028 INFO L158 Benchmark]: TraceAbstraction took 2508.47ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 72.2MB in the beginning and 104.4MB in the end (delta: -32.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:22:39,029 INFO L158 Benchmark]: Witness Printer took 96.56ms. Allocated memory is still 176.2MB. Free memory was 104.4MB in the beginning and 100.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 15:22:39,031 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 506.66ms. Allocated memory is still 146.8MB. Free memory was 112.3MB in the beginning and 91.0MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.61ms. Allocated memory is still 146.8MB. Free memory was 91.0MB in the beginning and 88.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.92ms. Allocated memory is still 146.8MB. Free memory was 88.9MB in the beginning and 87.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 390.50ms. Allocated memory is still 146.8MB. Free memory was 87.4MB in the beginning and 72.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2508.47ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 72.2MB in the beginning and 104.4MB in the end (delta: -32.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 96.56ms. Allocated memory is still 176.2MB. Free memory was 104.4MB in the beginning and 100.2MB 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: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 684]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 684]: 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, 94 locations, 9 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: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 309 IncrementalHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 12 mSDtfsCounter, 309 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=555occurred in iteration=5, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 211 NumberOfCodeBlocks, 211 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 205 ConstructedInterpolants, 0 QuantifiedInterpolants, 409 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! [2024-10-24 15:22:39,055 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