./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/06-symbeq_13-equ_proc_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.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 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:45:26,120 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:45:26,186 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:45:26,190 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:45:26,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:45:26,223 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:45:26,224 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:45:26,224 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:45:26,225 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:45:26,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:45:26,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:45:26,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:45:26,227 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:45:26,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:45:26,227 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:45:26,228 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:45:26,229 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:45:26,232 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:45:26,233 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:45:26,233 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:45:26,233 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:45:26,234 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:45:26,234 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:45:26,234 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:45:26,235 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:45:26,235 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:45:26,235 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:45:26,236 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:45:26,236 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:45:26,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:45:26,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:45:26,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:45:26,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:45:26,237 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:45:26,237 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:45:26,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:45:26,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:45:26,247 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:45:26,247 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:45:26,248 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:45:26,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:45:26,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 [2024-11-20 13:45:26,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:45:26,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:45:26,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:45:26,556 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:45:26,556 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:45:26,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2024-11-20 13:45:27,979 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:45:28,292 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:45:28,293 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2024-11-20 13:45:28,317 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3804a168/e8ed8104ae704cf593d0a7e4d17ffbd1/FLAG843ddd72e [2024-11-20 13:45:28,554 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3804a168/e8ed8104ae704cf593d0a7e4d17ffbd1 [2024-11-20 13:45:28,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:45:28,558 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:45:28,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:45:28,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:45:28,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:45:28,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:45:28" (1/1) ... [2024-11-20 13:45:28,569 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74dbfeeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:28, skipping insertion in model container [2024-11-20 13:45:28,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:45:28" (1/1) ... [2024-11-20 13:45:28,623 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:45:29,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:45:29,076 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:45:29,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:45:29,180 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:45:29,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:29 WrapperNode [2024-11-20 13:45:29,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:45:29,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:45:29,182 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:45:29,182 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:45:29,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:29" (1/1) ... [2024-11-20 13:45:29,209 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:29" (1/1) ... [2024-11-20 13:45:29,244 INFO L138 Inliner]: procedures = 266, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2024-11-20 13:45:29,245 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:45:29,246 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:45:29,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:45:29,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:45:29,255 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:29" (1/1) ... [2024-11-20 13:45:29,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:29" (1/1) ... [2024-11-20 13:45:29,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:29" (1/1) ... [2024-11-20 13:45:29,266 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:29" (1/1) ... [2024-11-20 13:45:29,272 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:29" (1/1) ... [2024-11-20 13:45:29,278 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:29" (1/1) ... [2024-11-20 13:45:29,282 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:29" (1/1) ... [2024-11-20 13:45:29,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:29" (1/1) ... [2024-11-20 13:45:29,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:45:29,294 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:45:29,294 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:45:29,294 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:45:29,295 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:29" (1/1) ... [2024-11-20 13:45:29,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:45:29,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:45:29,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 13:45:29,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 13:45:29,381 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:45:29,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:45:29,382 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:45:29,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:45:29,383 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-20 13:45:29,383 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-20 13:45:29,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:45:29,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:45:29,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:45:29,385 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:45:29,506 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:45:29,508 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:45:29,666 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:45:29,667 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:45:29,701 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:45:29,701 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 13:45:29,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:45:29 BoogieIcfgContainer [2024-11-20 13:45:29,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:45:29,705 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:45:29,706 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:45:29,709 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:45:29,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:45:28" (1/3) ... [2024-11-20 13:45:29,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ebad21d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:45:29, skipping insertion in model container [2024-11-20 13:45:29,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:45:29" (2/3) ... [2024-11-20 13:45:29,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ebad21d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:45:29, skipping insertion in model container [2024-11-20 13:45:29,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:45:29" (3/3) ... [2024-11-20 13:45:29,712 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2024-11-20 13:45:29,726 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:45:29,726 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 13:45:29,726 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:45:29,778 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:45:29,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 81 transitions, 166 flow [2024-11-20 13:45:29,874 INFO L124 PetriNetUnfolderBase]: 1/80 cut-off events. [2024-11-20 13:45:29,874 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:45:29,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 1/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-11-20 13:45:29,899 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 81 transitions, 166 flow [2024-11-20 13:45:29,902 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 80 transitions, 163 flow [2024-11-20 13:45:29,911 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:45:29,918 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;@23155a23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:45:29,918 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-20 13:45:29,934 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:45:29,935 INFO L124 PetriNetUnfolderBase]: 1/58 cut-off events. [2024-11-20 13:45:29,935 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:45:29,935 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:29,936 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:29,936 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:29,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:29,942 INFO L85 PathProgramCache]: Analyzing trace with hash 986417451, now seen corresponding path program 1 times [2024-11-20 13:45:29,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:29,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369237644] [2024-11-20 13:45:29,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:29,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:30,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:30,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:30,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369237644] [2024-11-20 13:45:30,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369237644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:30,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:30,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:45:30,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704715600] [2024-11-20 13:45:30,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:30,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:45:30,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:30,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:45:30,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:45:31,145 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 81 [2024-11-20 13:45:31,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 80 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:31,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:31,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 81 [2024-11-20 13:45:31,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:31,333 INFO L124 PetriNetUnfolderBase]: 79/347 cut-off events. [2024-11-20 13:45:31,334 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:45:31,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 347 events. 79/347 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1519 event pairs, 25 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 484. Up to 130 conditions per place. [2024-11-20 13:45:31,341 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 21 selfloop transitions, 22 changer transitions 4/109 dead transitions. [2024-11-20 13:45:31,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 109 transitions, 315 flow [2024-11-20 13:45:31,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:45:31,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:45:31,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 426 transitions. [2024-11-20 13:45:31,358 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8765432098765432 [2024-11-20 13:45:31,362 INFO L175 Difference]: Start difference. First operand has 83 places, 80 transitions, 163 flow. Second operand 6 states and 426 transitions. [2024-11-20 13:45:31,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 109 transitions, 315 flow [2024-11-20 13:45:31,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 109 transitions, 314 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:45:31,372 INFO L231 Difference]: Finished difference. Result has 92 places, 101 transitions, 312 flow [2024-11-20 13:45:31,374 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=92, PETRI_TRANSITIONS=101} [2024-11-20 13:45:31,377 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 9 predicate places. [2024-11-20 13:45:31,377 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 101 transitions, 312 flow [2024-11-20 13:45:31,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:31,378 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:31,378 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:31,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:45:31,379 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:31,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:31,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1846228120, now seen corresponding path program 1 times [2024-11-20 13:45:31,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:31,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004473649] [2024-11-20 13:45:31,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:31,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:31,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:31,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:31,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004473649] [2024-11-20 13:45:31,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004473649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:31,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:31,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:45:31,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109306101] [2024-11-20 13:45:31,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:31,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:45:31,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:31,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:45:31,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:45:31,723 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 81 [2024-11-20 13:45:31,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 101 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:31,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:31,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 81 [2024-11-20 13:45:31,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:31,884 INFO L124 PetriNetUnfolderBase]: 144/520 cut-off events. [2024-11-20 13:45:31,884 INFO L125 PetriNetUnfolderBase]: For 144/146 co-relation queries the response was YES. [2024-11-20 13:45:31,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 520 events. 144/520 cut-off events. For 144/146 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2603 event pairs, 43 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 1108. Up to 241 conditions per place. [2024-11-20 13:45:31,888 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 38 selfloop transitions, 29 changer transitions 7/136 dead transitions. [2024-11-20 13:45:31,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 136 transitions, 600 flow [2024-11-20 13:45:31,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:45:31,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:45:31,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 416 transitions. [2024-11-20 13:45:31,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8559670781893004 [2024-11-20 13:45:31,891 INFO L175 Difference]: Start difference. First operand has 92 places, 101 transitions, 312 flow. Second operand 6 states and 416 transitions. [2024-11-20 13:45:31,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 136 transitions, 600 flow [2024-11-20 13:45:31,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 136 transitions, 600 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:31,898 INFO L231 Difference]: Finished difference. Result has 102 places, 125 transitions, 566 flow [2024-11-20 13:45:31,899 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=566, PETRI_PLACES=102, PETRI_TRANSITIONS=125} [2024-11-20 13:45:31,899 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 19 predicate places. [2024-11-20 13:45:31,900 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 125 transitions, 566 flow [2024-11-20 13:45:31,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:31,900 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:31,900 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:31,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:45:31,901 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:31,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:31,901 INFO L85 PathProgramCache]: Analyzing trace with hash 878789003, now seen corresponding path program 1 times [2024-11-20 13:45:31,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:31,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411750425] [2024-11-20 13:45:31,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:31,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:32,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:32,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:32,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411750425] [2024-11-20 13:45:32,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411750425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:32,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:32,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 13:45:32,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415045807] [2024-11-20 13:45:32,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:32,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 13:45:32,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:32,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 13:45:32,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-20 13:45:32,419 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 81 [2024-11-20 13:45:32,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 125 transitions, 566 flow. Second operand has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:32,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:32,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 81 [2024-11-20 13:45:32,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:32,548 INFO L124 PetriNetUnfolderBase]: 88/454 cut-off events. [2024-11-20 13:45:32,549 INFO L125 PetriNetUnfolderBase]: For 188/192 co-relation queries the response was YES. [2024-11-20 13:45:32,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1083 conditions, 454 events. 88/454 cut-off events. For 188/192 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2341 event pairs, 7 based on Foata normal form. 2/454 useless extension candidates. Maximal degree in co-relation 862. Up to 83 conditions per place. [2024-11-20 13:45:32,552 INFO L140 encePairwiseOnDemand]: 73/81 looper letters, 11 selfloop transitions, 4 changer transitions 13/137 dead transitions. [2024-11-20 13:45:32,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 137 transitions, 646 flow [2024-11-20 13:45:32,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 13:45:32,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 13:45:32,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 491 transitions. [2024-11-20 13:45:32,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8659611992945326 [2024-11-20 13:45:32,554 INFO L175 Difference]: Start difference. First operand has 102 places, 125 transitions, 566 flow. Second operand 7 states and 491 transitions. [2024-11-20 13:45:32,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 137 transitions, 646 flow [2024-11-20 13:45:32,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 137 transitions, 628 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-20 13:45:32,568 INFO L231 Difference]: Finished difference. Result has 111 places, 123 transitions, 562 flow [2024-11-20 13:45:32,568 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=562, PETRI_PLACES=111, PETRI_TRANSITIONS=123} [2024-11-20 13:45:32,569 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 28 predicate places. [2024-11-20 13:45:32,569 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 123 transitions, 562 flow [2024-11-20 13:45:32,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:32,570 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:32,570 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:32,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:45:32,570 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:32,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:32,571 INFO L85 PathProgramCache]: Analyzing trace with hash -752278149, now seen corresponding path program 1 times [2024-11-20 13:45:32,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:32,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529631225] [2024-11-20 13:45:32,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:32,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:33,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:33,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:33,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529631225] [2024-11-20 13:45:33,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529631225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:33,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:33,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:45:33,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110196466] [2024-11-20 13:45:33,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:33,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:45:33,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:33,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:45:33,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:33,747 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-20 13:45:33,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 123 transitions, 562 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:33,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:33,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-20 13:45:33,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:34,276 INFO L124 PetriNetUnfolderBase]: 241/702 cut-off events. [2024-11-20 13:45:34,276 INFO L125 PetriNetUnfolderBase]: For 686/692 co-relation queries the response was YES. [2024-11-20 13:45:34,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2193 conditions, 702 events. 241/702 cut-off events. For 686/692 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3587 event pairs, 24 based on Foata normal form. 15/715 useless extension candidates. Maximal degree in co-relation 2136. Up to 144 conditions per place. [2024-11-20 13:45:34,281 INFO L140 encePairwiseOnDemand]: 65/81 looper letters, 105 selfloop transitions, 41 changer transitions 34/230 dead transitions. [2024-11-20 13:45:34,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 230 transitions, 1560 flow [2024-11-20 13:45:34,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 13:45:34,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-20 13:45:34,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 846 transitions. [2024-11-20 13:45:34,285 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6962962962962963 [2024-11-20 13:45:34,285 INFO L175 Difference]: Start difference. First operand has 111 places, 123 transitions, 562 flow. Second operand 15 states and 846 transitions. [2024-11-20 13:45:34,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 230 transitions, 1560 flow [2024-11-20 13:45:34,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 230 transitions, 1532 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-20 13:45:34,296 INFO L231 Difference]: Finished difference. Result has 127 places, 146 transitions, 908 flow [2024-11-20 13:45:34,297 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=908, PETRI_PLACES=127, PETRI_TRANSITIONS=146} [2024-11-20 13:45:34,298 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 44 predicate places. [2024-11-20 13:45:34,299 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 146 transitions, 908 flow [2024-11-20 13:45:34,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:34,299 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:34,300 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:34,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:45:34,300 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:34,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:34,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1100070851, now seen corresponding path program 2 times [2024-11-20 13:45:34,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:34,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021248799] [2024-11-20 13:45:34,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:34,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:34,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:34,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:34,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021248799] [2024-11-20 13:45:34,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021248799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:34,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:34,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:45:34,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684642157] [2024-11-20 13:45:34,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:34,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:45:34,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:34,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:45:34,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:35,371 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-20 13:45:35,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 146 transitions, 908 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:35,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:35,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-20 13:45:35,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:35,875 INFO L124 PetriNetUnfolderBase]: 206/641 cut-off events. [2024-11-20 13:45:35,875 INFO L125 PetriNetUnfolderBase]: For 1660/1672 co-relation queries the response was YES. [2024-11-20 13:45:35,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2506 conditions, 641 events. 206/641 cut-off events. For 1660/1672 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3363 event pairs, 38 based on Foata normal form. 17/656 useless extension candidates. Maximal degree in co-relation 2429. Up to 290 conditions per place. [2024-11-20 13:45:35,881 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 75 selfloop transitions, 39 changer transitions 32/196 dead transitions. [2024-11-20 13:45:35,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 196 transitions, 1494 flow [2024-11-20 13:45:35,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 13:45:35,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 13:45:35,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 752 transitions. [2024-11-20 13:45:35,883 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7141500474833808 [2024-11-20 13:45:35,884 INFO L175 Difference]: Start difference. First operand has 127 places, 146 transitions, 908 flow. Second operand 13 states and 752 transitions. [2024-11-20 13:45:35,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 196 transitions, 1494 flow [2024-11-20 13:45:35,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 196 transitions, 1416 flow, removed 6 selfloop flow, removed 10 redundant places. [2024-11-20 13:45:35,897 INFO L231 Difference]: Finished difference. Result has 130 places, 146 transitions, 977 flow [2024-11-20 13:45:35,897 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=977, PETRI_PLACES=130, PETRI_TRANSITIONS=146} [2024-11-20 13:45:35,898 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 47 predicate places. [2024-11-20 13:45:35,898 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 146 transitions, 977 flow [2024-11-20 13:45:35,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:35,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:35,899 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:35,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:45:35,899 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:35,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:35,900 INFO L85 PathProgramCache]: Analyzing trace with hash -765698169, now seen corresponding path program 3 times [2024-11-20 13:45:35,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:35,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307310085] [2024-11-20 13:45:35,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:35,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:36,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:36,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:36,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307310085] [2024-11-20 13:45:36,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307310085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:36,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:36,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:45:36,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980904706] [2024-11-20 13:45:36,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:36,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:45:36,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:36,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:45:36,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:36,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-20 13:45:36,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 146 transitions, 977 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:36,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:36,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-20 13:45:36,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:37,559 INFO L124 PetriNetUnfolderBase]: 289/838 cut-off events. [2024-11-20 13:45:37,559 INFO L125 PetriNetUnfolderBase]: For 3142/3158 co-relation queries the response was YES. [2024-11-20 13:45:37,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3563 conditions, 838 events. 289/838 cut-off events. For 3142/3158 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4758 event pairs, 32 based on Foata normal form. 20/855 useless extension candidates. Maximal degree in co-relation 3485. Up to 280 conditions per place. [2024-11-20 13:45:37,568 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 132 selfloop transitions, 62 changer transitions 15/259 dead transitions. [2024-11-20 13:45:37,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 259 transitions, 2389 flow [2024-11-20 13:45:37,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 13:45:37,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-20 13:45:37,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 847 transitions. [2024-11-20 13:45:37,571 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.697119341563786 [2024-11-20 13:45:37,571 INFO L175 Difference]: Start difference. First operand has 130 places, 146 transitions, 977 flow. Second operand 15 states and 847 transitions. [2024-11-20 13:45:37,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 259 transitions, 2389 flow [2024-11-20 13:45:37,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 259 transitions, 2271 flow, removed 9 selfloop flow, removed 10 redundant places. [2024-11-20 13:45:37,595 INFO L231 Difference]: Finished difference. Result has 140 places, 184 transitions, 1566 flow [2024-11-20 13:45:37,595 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1566, PETRI_PLACES=140, PETRI_TRANSITIONS=184} [2024-11-20 13:45:37,596 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 57 predicate places. [2024-11-20 13:45:37,597 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 184 transitions, 1566 flow [2024-11-20 13:45:37,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:37,598 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:37,598 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:37,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:45:37,599 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:37,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:37,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1837082241, now seen corresponding path program 4 times [2024-11-20 13:45:37,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:37,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280767765] [2024-11-20 13:45:37,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:37,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:38,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:38,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:38,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280767765] [2024-11-20 13:45:38,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280767765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:38,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:38,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:45:38,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150568902] [2024-11-20 13:45:38,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:38,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:45:38,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:38,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:45:38,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:38,614 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-20 13:45:38,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 184 transitions, 1566 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:38,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:38,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-20 13:45:38,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:39,305 INFO L124 PetriNetUnfolderBase]: 308/885 cut-off events. [2024-11-20 13:45:39,305 INFO L125 PetriNetUnfolderBase]: For 5242/5267 co-relation queries the response was YES. [2024-11-20 13:45:39,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4280 conditions, 885 events. 308/885 cut-off events. For 5242/5267 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5108 event pairs, 42 based on Foata normal form. 31/913 useless extension candidates. Maximal degree in co-relation 4195. Up to 429 conditions per place. [2024-11-20 13:45:39,314 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 111 selfloop transitions, 64 changer transitions 29/254 dead transitions. [2024-11-20 13:45:39,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 254 transitions, 2527 flow [2024-11-20 13:45:39,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 13:45:39,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-20 13:45:39,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 858 transitions. [2024-11-20 13:45:39,316 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7061728395061728 [2024-11-20 13:45:39,317 INFO L175 Difference]: Start difference. First operand has 140 places, 184 transitions, 1566 flow. Second operand 15 states and 858 transitions. [2024-11-20 13:45:39,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 254 transitions, 2527 flow [2024-11-20 13:45:39,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 254 transitions, 2423 flow, removed 31 selfloop flow, removed 8 redundant places. [2024-11-20 13:45:39,343 INFO L231 Difference]: Finished difference. Result has 152 places, 197 transitions, 1888 flow [2024-11-20 13:45:39,343 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1492, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1888, PETRI_PLACES=152, PETRI_TRANSITIONS=197} [2024-11-20 13:45:39,344 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 69 predicate places. [2024-11-20 13:45:39,344 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 197 transitions, 1888 flow [2024-11-20 13:45:39,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:39,344 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:39,345 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:39,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:45:39,345 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:39,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:39,345 INFO L85 PathProgramCache]: Analyzing trace with hash -137656509, now seen corresponding path program 1 times [2024-11-20 13:45:39,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:39,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619387006] [2024-11-20 13:45:39,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:39,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:39,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:39,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:39,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619387006] [2024-11-20 13:45:39,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619387006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:39,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:39,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:45:39,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19891926] [2024-11-20 13:45:39,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:39,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:45:39,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:39,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:45:39,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:40,296 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-20 13:45:40,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 197 transitions, 1888 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:40,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:40,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-20 13:45:40,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:40,743 INFO L124 PetriNetUnfolderBase]: 282/807 cut-off events. [2024-11-20 13:45:40,743 INFO L125 PetriNetUnfolderBase]: For 5541/5565 co-relation queries the response was YES. [2024-11-20 13:45:40,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4291 conditions, 807 events. 282/807 cut-off events. For 5541/5565 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4539 event pairs, 29 based on Foata normal form. 24/827 useless extension candidates. Maximal degree in co-relation 4201. Up to 179 conditions per place. [2024-11-20 13:45:40,752 INFO L140 encePairwiseOnDemand]: 66/81 looper letters, 132 selfloop transitions, 61 changer transitions 14/262 dead transitions. [2024-11-20 13:45:40,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 262 transitions, 2998 flow [2024-11-20 13:45:40,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 13:45:40,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-20 13:45:40,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 669 transitions. [2024-11-20 13:45:40,754 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6882716049382716 [2024-11-20 13:45:40,754 INFO L175 Difference]: Start difference. First operand has 152 places, 197 transitions, 1888 flow. Second operand 12 states and 669 transitions. [2024-11-20 13:45:40,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 262 transitions, 2998 flow [2024-11-20 13:45:40,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 262 transitions, 2880 flow, removed 17 selfloop flow, removed 8 redundant places. [2024-11-20 13:45:40,787 INFO L231 Difference]: Finished difference. Result has 152 places, 191 transitions, 1884 flow [2024-11-20 13:45:40,788 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1790, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1884, PETRI_PLACES=152, PETRI_TRANSITIONS=191} [2024-11-20 13:45:40,788 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 69 predicate places. [2024-11-20 13:45:40,788 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 191 transitions, 1884 flow [2024-11-20 13:45:40,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:40,789 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:40,789 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:40,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:45:40,789 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:40,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:40,790 INFO L85 PathProgramCache]: Analyzing trace with hash -181087335, now seen corresponding path program 5 times [2024-11-20 13:45:40,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:40,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423033752] [2024-11-20 13:45:40,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:40,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:41,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:41,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:41,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423033752] [2024-11-20 13:45:41,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423033752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:41,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:41,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:45:41,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241956088] [2024-11-20 13:45:41,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:41,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:45:41,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:41,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:45:41,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:41,658 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-20 13:45:41,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 191 transitions, 1884 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:41,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:41,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-20 13:45:41,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:42,243 INFO L124 PetriNetUnfolderBase]: 286/802 cut-off events. [2024-11-20 13:45:42,243 INFO L125 PetriNetUnfolderBase]: For 6379/6416 co-relation queries the response was YES. [2024-11-20 13:45:42,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4588 conditions, 802 events. 286/802 cut-off events. For 6379/6416 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4369 event pairs, 35 based on Foata normal form. 30/829 useless extension candidates. Maximal degree in co-relation 4498. Up to 426 conditions per place. [2024-11-20 13:45:42,252 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 93 selfloop transitions, 43 changer transitions 51/233 dead transitions. [2024-11-20 13:45:42,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 233 transitions, 2673 flow [2024-11-20 13:45:42,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 13:45:42,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 13:45:42,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 790 transitions. [2024-11-20 13:45:42,256 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6966490299823633 [2024-11-20 13:45:42,256 INFO L175 Difference]: Start difference. First operand has 152 places, 191 transitions, 1884 flow. Second operand 14 states and 790 transitions. [2024-11-20 13:45:42,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 233 transitions, 2673 flow [2024-11-20 13:45:42,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 233 transitions, 2497 flow, removed 4 selfloop flow, removed 12 redundant places. [2024-11-20 13:45:42,288 INFO L231 Difference]: Finished difference. Result has 156 places, 166 transitions, 1549 flow [2024-11-20 13:45:42,289 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1758, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1549, PETRI_PLACES=156, PETRI_TRANSITIONS=166} [2024-11-20 13:45:42,290 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 73 predicate places. [2024-11-20 13:45:42,290 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 166 transitions, 1549 flow [2024-11-20 13:45:42,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:42,291 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:42,291 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:42,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 13:45:42,291 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:42,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:42,292 INFO L85 PathProgramCache]: Analyzing trace with hash -972754177, now seen corresponding path program 6 times [2024-11-20 13:45:42,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:42,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234702465] [2024-11-20 13:45:42,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:42,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:42,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:42,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:42,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234702465] [2024-11-20 13:45:42,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234702465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:42,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:42,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:45:42,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093659226] [2024-11-20 13:45:42,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:42,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:45:42,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:42,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:45:42,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:43,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-20 13:45:43,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 166 transitions, 1549 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:43,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:43,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-20 13:45:43,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:43,544 INFO L124 PetriNetUnfolderBase]: 217/694 cut-off events. [2024-11-20 13:45:43,544 INFO L125 PetriNetUnfolderBase]: For 7022/7049 co-relation queries the response was YES. [2024-11-20 13:45:43,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3771 conditions, 694 events. 217/694 cut-off events. For 7022/7049 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3772 event pairs, 34 based on Foata normal form. 19/710 useless extension candidates. Maximal degree in co-relation 3675. Up to 351 conditions per place. [2024-11-20 13:45:43,551 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 100 selfloop transitions, 44 changer transitions 20/210 dead transitions. [2024-11-20 13:45:43,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 210 transitions, 2366 flow [2024-11-20 13:45:43,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 13:45:43,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 13:45:43,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 785 transitions. [2024-11-20 13:45:43,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6922398589065256 [2024-11-20 13:45:43,554 INFO L175 Difference]: Start difference. First operand has 156 places, 166 transitions, 1549 flow. Second operand 14 states and 785 transitions. [2024-11-20 13:45:43,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 210 transitions, 2366 flow [2024-11-20 13:45:43,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 210 transitions, 2053 flow, removed 50 selfloop flow, removed 17 redundant places. [2024-11-20 13:45:43,582 INFO L231 Difference]: Finished difference. Result has 156 places, 173 transitions, 1579 flow [2024-11-20 13:45:43,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1326, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1579, PETRI_PLACES=156, PETRI_TRANSITIONS=173} [2024-11-20 13:45:43,583 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 73 predicate places. [2024-11-20 13:45:43,583 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 173 transitions, 1579 flow [2024-11-20 13:45:43,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:43,583 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:43,583 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:43,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 13:45:43,584 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:43,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:43,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1849243779, now seen corresponding path program 7 times [2024-11-20 13:45:43,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:43,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607914746] [2024-11-20 13:45:43,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:43,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:43,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:43,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:43,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607914746] [2024-11-20 13:45:43,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607914746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:43,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:43,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:45:43,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669537366] [2024-11-20 13:45:43,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:43,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:45:43,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:43,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:45:43,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:44,338 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-20 13:45:44,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 173 transitions, 1579 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:44,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:44,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-20 13:45:44,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:44,842 INFO L124 PetriNetUnfolderBase]: 249/765 cut-off events. [2024-11-20 13:45:44,842 INFO L125 PetriNetUnfolderBase]: For 6569/6609 co-relation queries the response was YES. [2024-11-20 13:45:44,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3969 conditions, 765 events. 249/765 cut-off events. For 6569/6609 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4247 event pairs, 42 based on Foata normal form. 30/792 useless extension candidates. Maximal degree in co-relation 3875. Up to 275 conditions per place. [2024-11-20 13:45:44,850 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 141 selfloop transitions, 61 changer transitions 16/264 dead transitions. [2024-11-20 13:45:44,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 264 transitions, 2958 flow [2024-11-20 13:45:44,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 13:45:44,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-20 13:45:44,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 841 transitions. [2024-11-20 13:45:44,853 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6921810699588478 [2024-11-20 13:45:44,853 INFO L175 Difference]: Start difference. First operand has 156 places, 173 transitions, 1579 flow. Second operand 15 states and 841 transitions. [2024-11-20 13:45:44,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 264 transitions, 2958 flow [2024-11-20 13:45:44,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 264 transitions, 2897 flow, removed 18 selfloop flow, removed 8 redundant places. [2024-11-20 13:45:44,885 INFO L231 Difference]: Finished difference. Result has 168 places, 193 transitions, 2028 flow [2024-11-20 13:45:44,886 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1549, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2028, PETRI_PLACES=168, PETRI_TRANSITIONS=193} [2024-11-20 13:45:44,886 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 85 predicate places. [2024-11-20 13:45:44,887 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 193 transitions, 2028 flow [2024-11-20 13:45:44,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:44,887 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:44,887 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:44,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 13:45:44,888 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:44,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:44,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1388040677, now seen corresponding path program 8 times [2024-11-20 13:45:44,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:44,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021116408] [2024-11-20 13:45:44,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:44,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:45,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:45,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:45,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021116408] [2024-11-20 13:45:45,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021116408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:45,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:45,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:45:45,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699560516] [2024-11-20 13:45:45,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:45,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:45:45,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:45,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:45:45,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:45,678 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-20 13:45:45,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 193 transitions, 2028 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:45,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:45,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-20 13:45:45,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:46,146 INFO L124 PetriNetUnfolderBase]: 251/754 cut-off events. [2024-11-20 13:45:46,147 INFO L125 PetriNetUnfolderBase]: For 9120/9160 co-relation queries the response was YES. [2024-11-20 13:45:46,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4381 conditions, 754 events. 251/754 cut-off events. For 9120/9160 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4141 event pairs, 22 based on Foata normal form. 36/789 useless extension candidates. Maximal degree in co-relation 4281. Up to 329 conditions per place. [2024-11-20 13:45:46,155 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 142 selfloop transitions, 57 changer transitions 20/265 dead transitions. [2024-11-20 13:45:46,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 265 transitions, 3322 flow [2024-11-20 13:45:46,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 13:45:46,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-20 13:45:46,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 838 transitions. [2024-11-20 13:45:46,157 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6897119341563785 [2024-11-20 13:45:46,158 INFO L175 Difference]: Start difference. First operand has 168 places, 193 transitions, 2028 flow. Second operand 15 states and 838 transitions. [2024-11-20 13:45:46,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 265 transitions, 3322 flow [2024-11-20 13:45:46,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 265 transitions, 3119 flow, removed 65 selfloop flow, removed 10 redundant places. [2024-11-20 13:45:46,185 INFO L231 Difference]: Finished difference. Result has 177 places, 206 transitions, 2257 flow [2024-11-20 13:45:46,185 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=1863, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2257, PETRI_PLACES=177, PETRI_TRANSITIONS=206} [2024-11-20 13:45:46,186 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 94 predicate places. [2024-11-20 13:45:46,186 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 206 transitions, 2257 flow [2024-11-20 13:45:46,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:46,187 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:46,187 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:46,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 13:45:46,187 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:46,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:46,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1674150571, now seen corresponding path program 9 times [2024-11-20 13:45:46,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:46,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835870801] [2024-11-20 13:45:46,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:46,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:46,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:46,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:46,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835870801] [2024-11-20 13:45:46,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835870801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:46,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:46,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:45:46,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909404043] [2024-11-20 13:45:46,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:46,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:45:46,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:46,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:45:46,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:46,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-20 13:45:46,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 206 transitions, 2257 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:46,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:46,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-20 13:45:46,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:47,463 INFO L124 PetriNetUnfolderBase]: 228/716 cut-off events. [2024-11-20 13:45:47,464 INFO L125 PetriNetUnfolderBase]: For 8916/8959 co-relation queries the response was YES. [2024-11-20 13:45:47,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4166 conditions, 716 events. 228/716 cut-off events. For 8916/8959 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3913 event pairs, 19 based on Foata normal form. 41/756 useless extension candidates. Maximal degree in co-relation 4062. Up to 360 conditions per place. [2024-11-20 13:45:47,474 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 123 selfloop transitions, 50 changer transitions 32/251 dead transitions. [2024-11-20 13:45:47,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 251 transitions, 3189 flow [2024-11-20 13:45:47,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 13:45:47,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-20 13:45:47,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 836 transitions. [2024-11-20 13:45:47,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6880658436213992 [2024-11-20 13:45:47,476 INFO L175 Difference]: Start difference. First operand has 177 places, 206 transitions, 2257 flow. Second operand 15 states and 836 transitions. [2024-11-20 13:45:47,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 251 transitions, 3189 flow [2024-11-20 13:45:47,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 251 transitions, 3024 flow, removed 55 selfloop flow, removed 11 redundant places. [2024-11-20 13:45:47,525 INFO L231 Difference]: Finished difference. Result has 184 places, 201 transitions, 2189 flow [2024-11-20 13:45:47,526 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2114, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2189, PETRI_PLACES=184, PETRI_TRANSITIONS=201} [2024-11-20 13:45:47,526 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 101 predicate places. [2024-11-20 13:45:47,527 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 201 transitions, 2189 flow [2024-11-20 13:45:47,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:47,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:47,527 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:47,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 13:45:47,528 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:47,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:47,528 INFO L85 PathProgramCache]: Analyzing trace with hash -246324857, now seen corresponding path program 10 times [2024-11-20 13:45:47,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:47,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096699265] [2024-11-20 13:45:47,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:47,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:47,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:47,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:47,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096699265] [2024-11-20 13:45:47,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096699265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:47,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:47,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:45:47,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798532435] [2024-11-20 13:45:47,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:47,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:45:47,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:47,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:45:47,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:48,338 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-20 13:45:48,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 201 transitions, 2189 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:48,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:48,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-20 13:45:48,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:48,818 INFO L124 PetriNetUnfolderBase]: 250/796 cut-off events. [2024-11-20 13:45:48,818 INFO L125 PetriNetUnfolderBase]: For 12174/12212 co-relation queries the response was YES. [2024-11-20 13:45:48,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4630 conditions, 796 events. 250/796 cut-off events. For 12174/12212 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4568 event pairs, 34 based on Foata normal form. 38/832 useless extension candidates. Maximal degree in co-relation 4523. Up to 352 conditions per place. [2024-11-20 13:45:48,827 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 148 selfloop transitions, 64 changer transitions 13/271 dead transitions. [2024-11-20 13:45:48,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 271 transitions, 3509 flow [2024-11-20 13:45:48,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 13:45:48,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-20 13:45:48,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 840 transitions. [2024-11-20 13:45:48,830 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.691358024691358 [2024-11-20 13:45:48,830 INFO L175 Difference]: Start difference. First operand has 184 places, 201 transitions, 2189 flow. Second operand 15 states and 840 transitions. [2024-11-20 13:45:48,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 271 transitions, 3509 flow [2024-11-20 13:45:48,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 271 transitions, 3395 flow, removed 27 selfloop flow, removed 11 redundant places. [2024-11-20 13:45:48,875 INFO L231 Difference]: Finished difference. Result has 189 places, 219 transitions, 2605 flow [2024-11-20 13:45:48,875 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2115, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2605, PETRI_PLACES=189, PETRI_TRANSITIONS=219} [2024-11-20 13:45:48,876 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 106 predicate places. [2024-11-20 13:45:48,876 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 219 transitions, 2605 flow [2024-11-20 13:45:48,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:48,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:48,877 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:48,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 13:45:48,877 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:48,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:48,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1976196377, now seen corresponding path program 11 times [2024-11-20 13:45:48,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:48,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454715273] [2024-11-20 13:45:48,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:48,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:49,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:49,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:49,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454715273] [2024-11-20 13:45:49,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454715273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:49,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:49,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:45:49,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672475239] [2024-11-20 13:45:49,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:49,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:45:49,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:49,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:45:49,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:49,708 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-20 13:45:49,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 219 transitions, 2605 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:49,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:49,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-20 13:45:49,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:50,078 INFO L124 PetriNetUnfolderBase]: 244/793 cut-off events. [2024-11-20 13:45:50,079 INFO L125 PetriNetUnfolderBase]: For 13142/13187 co-relation queries the response was YES. [2024-11-20 13:45:50,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4814 conditions, 793 events. 244/793 cut-off events. For 13142/13187 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4618 event pairs, 35 based on Foata normal form. 27/817 useless extension candidates. Maximal degree in co-relation 4704. Up to 444 conditions per place. [2024-11-20 13:45:50,088 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 134 selfloop transitions, 52 changer transitions 15/247 dead transitions. [2024-11-20 13:45:50,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 247 transitions, 3316 flow [2024-11-20 13:45:50,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 13:45:50,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 13:45:50,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 774 transitions. [2024-11-20 13:45:50,090 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6825396825396826 [2024-11-20 13:45:50,090 INFO L175 Difference]: Start difference. First operand has 189 places, 219 transitions, 2605 flow. Second operand 14 states and 774 transitions. [2024-11-20 13:45:50,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 247 transitions, 3316 flow [2024-11-20 13:45:50,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 247 transitions, 3150 flow, removed 64 selfloop flow, removed 9 redundant places. [2024-11-20 13:45:50,132 INFO L231 Difference]: Finished difference. Result has 197 places, 221 transitions, 2631 flow [2024-11-20 13:45:50,132 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2453, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2631, PETRI_PLACES=197, PETRI_TRANSITIONS=221} [2024-11-20 13:45:50,133 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 114 predicate places. [2024-11-20 13:45:50,133 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 221 transitions, 2631 flow [2024-11-20 13:45:50,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:50,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:50,133 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:50,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 13:45:50,133 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:50,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:50,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1675784521, now seen corresponding path program 12 times [2024-11-20 13:45:50,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:50,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435979015] [2024-11-20 13:45:50,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:50,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:50,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:50,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:50,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435979015] [2024-11-20 13:45:50,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435979015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:50,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:50,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:45:50,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388924059] [2024-11-20 13:45:50,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:50,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:45:50,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:50,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:45:50,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:51,071 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-20 13:45:51,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 221 transitions, 2631 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:51,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:51,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-20 13:45:51,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:51,472 INFO L124 PetriNetUnfolderBase]: 235/780 cut-off events. [2024-11-20 13:45:51,472 INFO L125 PetriNetUnfolderBase]: For 12688/12722 co-relation queries the response was YES. [2024-11-20 13:45:51,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4637 conditions, 780 events. 235/780 cut-off events. For 12688/12722 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4518 event pairs, 34 based on Foata normal form. 31/808 useless extension candidates. Maximal degree in co-relation 4524. Up to 409 conditions per place. [2024-11-20 13:45:51,479 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 134 selfloop transitions, 55 changer transitions 29/264 dead transitions. [2024-11-20 13:45:51,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 264 transitions, 3582 flow [2024-11-20 13:45:51,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 13:45:51,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-20 13:45:51,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 835 transitions. [2024-11-20 13:45:51,481 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6872427983539094 [2024-11-20 13:45:51,481 INFO L175 Difference]: Start difference. First operand has 197 places, 221 transitions, 2631 flow. Second operand 15 states and 835 transitions. [2024-11-20 13:45:51,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 264 transitions, 3582 flow [2024-11-20 13:45:51,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 264 transitions, 3425 flow, removed 35 selfloop flow, removed 11 redundant places. [2024-11-20 13:45:51,524 INFO L231 Difference]: Finished difference. Result has 204 places, 218 transitions, 2608 flow [2024-11-20 13:45:51,525 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2498, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2608, PETRI_PLACES=204, PETRI_TRANSITIONS=218} [2024-11-20 13:45:51,525 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 121 predicate places. [2024-11-20 13:45:51,525 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 218 transitions, 2608 flow [2024-11-20 13:45:51,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:51,526 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:51,526 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:51,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 13:45:51,526 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:51,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:51,526 INFO L85 PathProgramCache]: Analyzing trace with hash 621319205, now seen corresponding path program 13 times [2024-11-20 13:45:51,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:51,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100038476] [2024-11-20 13:45:51,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:51,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:51,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:51,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:51,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100038476] [2024-11-20 13:45:51,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100038476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:51,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:51,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:45:51,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111930969] [2024-11-20 13:45:51,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:51,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:45:51,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:51,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:45:51,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:52,350 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-20 13:45:52,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 218 transitions, 2608 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:52,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:52,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-20 13:45:52,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:52,752 INFO L124 PetriNetUnfolderBase]: 232/792 cut-off events. [2024-11-20 13:45:52,753 INFO L125 PetriNetUnfolderBase]: For 13627/13658 co-relation queries the response was YES. [2024-11-20 13:45:52,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4702 conditions, 792 events. 232/792 cut-off events. For 13627/13658 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4655 event pairs, 36 based on Foata normal form. 28/817 useless extension candidates. Maximal degree in co-relation 4588. Up to 417 conditions per place. [2024-11-20 13:45:52,762 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 138 selfloop transitions, 55 changer transitions 23/262 dead transitions. [2024-11-20 13:45:52,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 262 transitions, 3622 flow [2024-11-20 13:45:52,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 13:45:52,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-20 13:45:52,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 832 transitions. [2024-11-20 13:45:52,764 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6847736625514403 [2024-11-20 13:45:52,764 INFO L175 Difference]: Start difference. First operand has 204 places, 218 transitions, 2608 flow. Second operand 15 states and 832 transitions. [2024-11-20 13:45:52,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 262 transitions, 3622 flow [2024-11-20 13:45:52,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 262 transitions, 3531 flow, removed 25 selfloop flow, removed 10 redundant places. [2024-11-20 13:45:52,821 INFO L231 Difference]: Finished difference. Result has 210 places, 223 transitions, 2770 flow [2024-11-20 13:45:52,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2540, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2770, PETRI_PLACES=210, PETRI_TRANSITIONS=223} [2024-11-20 13:45:52,821 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 127 predicate places. [2024-11-20 13:45:52,822 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 223 transitions, 2770 flow [2024-11-20 13:45:52,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:52,822 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:52,822 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:52,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 13:45:52,823 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:52,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:52,823 INFO L85 PathProgramCache]: Analyzing trace with hash 2081652893, now seen corresponding path program 14 times [2024-11-20 13:45:52,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:52,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784571591] [2024-11-20 13:45:52,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:52,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:53,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:53,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:53,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784571591] [2024-11-20 13:45:53,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784571591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:53,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:53,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:45:53,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39417726] [2024-11-20 13:45:53,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:53,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:45:53,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:53,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:45:53,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:53,553 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-20 13:45:53,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 223 transitions, 2770 flow. Second operand has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:53,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:53,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-20 13:45:53,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:54,084 INFO L124 PetriNetUnfolderBase]: 221/753 cut-off events. [2024-11-20 13:45:54,084 INFO L125 PetriNetUnfolderBase]: For 13880/13907 co-relation queries the response was YES. [2024-11-20 13:45:54,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4570 conditions, 753 events. 221/753 cut-off events. For 13880/13907 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4342 event pairs, 34 based on Foata normal form. 27/769 useless extension candidates. Maximal degree in co-relation 4453. Up to 363 conditions per place. [2024-11-20 13:45:54,092 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 138 selfloop transitions, 61 changer transitions 26/271 dead transitions. [2024-11-20 13:45:54,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 271 transitions, 3866 flow [2024-11-20 13:45:54,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 13:45:54,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-20 13:45:54,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 834 transitions. [2024-11-20 13:45:54,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6864197530864198 [2024-11-20 13:45:54,094 INFO L175 Difference]: Start difference. First operand has 210 places, 223 transitions, 2770 flow. Second operand 15 states and 834 transitions. [2024-11-20 13:45:54,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 271 transitions, 3866 flow [2024-11-20 13:45:54,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 271 transitions, 3734 flow, removed 46 selfloop flow, removed 12 redundant places. [2024-11-20 13:45:54,152 INFO L231 Difference]: Finished difference. Result has 217 places, 221 transitions, 2831 flow [2024-11-20 13:45:54,153 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2694, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2831, PETRI_PLACES=217, PETRI_TRANSITIONS=221} [2024-11-20 13:45:54,153 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 134 predicate places. [2024-11-20 13:45:54,153 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 221 transitions, 2831 flow [2024-11-20 13:45:54,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.53846153846154) internal successors, (670), 13 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:54,154 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:54,154 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:54,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 13:45:54,154 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:54,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:54,155 INFO L85 PathProgramCache]: Analyzing trace with hash -24746395, now seen corresponding path program 1 times [2024-11-20 13:45:54,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:54,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143822761] [2024-11-20 13:45:54,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:54,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:54,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:54,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:54,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143822761] [2024-11-20 13:45:54,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143822761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:54,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:54,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:45:54,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812958033] [2024-11-20 13:45:54,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:54,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:45:54,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:54,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:45:54,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:54,915 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-20 13:45:54,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 221 transitions, 2831 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:54,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:54,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-20 13:45:54,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:55,334 INFO L124 PetriNetUnfolderBase]: 208/740 cut-off events. [2024-11-20 13:45:55,334 INFO L125 PetriNetUnfolderBase]: For 12410/12438 co-relation queries the response was YES. [2024-11-20 13:45:55,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4386 conditions, 740 events. 208/740 cut-off events. For 12410/12438 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4322 event pairs, 16 based on Foata normal form. 14/750 useless extension candidates. Maximal degree in co-relation 4266. Up to 223 conditions per place. [2024-11-20 13:45:55,342 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 123 selfloop transitions, 64 changer transitions 29/262 dead transitions. [2024-11-20 13:45:55,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 262 transitions, 3753 flow [2024-11-20 13:45:55,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 13:45:55,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-20 13:45:55,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 977 transitions. [2024-11-20 13:45:55,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6700960219478738 [2024-11-20 13:45:55,345 INFO L175 Difference]: Start difference. First operand has 217 places, 221 transitions, 2831 flow. Second operand 18 states and 977 transitions. [2024-11-20 13:45:55,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 262 transitions, 3753 flow [2024-11-20 13:45:55,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 262 transitions, 3581 flow, removed 73 selfloop flow, removed 10 redundant places. [2024-11-20 13:45:55,402 INFO L231 Difference]: Finished difference. Result has 218 places, 210 transitions, 2629 flow [2024-11-20 13:45:55,402 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2699, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2629, PETRI_PLACES=218, PETRI_TRANSITIONS=210} [2024-11-20 13:45:55,402 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 135 predicate places. [2024-11-20 13:45:55,403 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 210 transitions, 2629 flow [2024-11-20 13:45:55,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:55,403 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:55,403 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:55,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 13:45:55,404 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:55,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:55,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1196613613, now seen corresponding path program 2 times [2024-11-20 13:45:55,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:55,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603008015] [2024-11-20 13:45:55,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:55,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:55,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:55,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:55,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603008015] [2024-11-20 13:45:55,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603008015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:55,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:55,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:45:55,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071347550] [2024-11-20 13:45:55,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:55,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:45:55,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:55,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:45:55,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:56,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-20 13:45:56,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 210 transitions, 2629 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:56,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:56,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-20 13:45:56,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:56,535 INFO L124 PetriNetUnfolderBase]: 195/720 cut-off events. [2024-11-20 13:45:56,536 INFO L125 PetriNetUnfolderBase]: For 12654/12682 co-relation queries the response was YES. [2024-11-20 13:45:56,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4163 conditions, 720 events. 195/720 cut-off events. For 12654/12682 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4212 event pairs, 16 based on Foata normal form. 14/730 useless extension candidates. Maximal degree in co-relation 4041. Up to 223 conditions per place. [2024-11-20 13:45:56,540 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 113 selfloop transitions, 56 changer transitions 37/252 dead transitions. [2024-11-20 13:45:56,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 252 transitions, 3605 flow [2024-11-20 13:45:56,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 13:45:56,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-20 13:45:56,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1077 transitions. [2024-11-20 13:45:56,543 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6648148148148149 [2024-11-20 13:45:56,543 INFO L175 Difference]: Start difference. First operand has 218 places, 210 transitions, 2629 flow. Second operand 20 states and 1077 transitions. [2024-11-20 13:45:56,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 252 transitions, 3605 flow [2024-11-20 13:45:56,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 252 transitions, 3396 flow, removed 35 selfloop flow, removed 17 redundant places. [2024-11-20 13:45:56,585 INFO L231 Difference]: Finished difference. Result has 222 places, 198 transitions, 2401 flow [2024-11-20 13:45:56,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2482, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2401, PETRI_PLACES=222, PETRI_TRANSITIONS=198} [2024-11-20 13:45:56,586 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 139 predicate places. [2024-11-20 13:45:56,586 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 198 transitions, 2401 flow [2024-11-20 13:45:56,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:56,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:45:56,586 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:45:56,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 13:45:56,586 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2024-11-20 13:45:56,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:45:56,587 INFO L85 PathProgramCache]: Analyzing trace with hash 681139153, now seen corresponding path program 3 times [2024-11-20 13:45:56,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:45:56,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103479778] [2024-11-20 13:45:56,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:45:56,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:45:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:45:56,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:45:56,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:45:56,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103479778] [2024-11-20 13:45:56,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103479778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:45:56,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:45:56,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 13:45:56,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300079595] [2024-11-20 13:45:56,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:45:56,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 13:45:56,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:45:56,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 13:45:56,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:45:57,184 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-20 13:45:57,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 198 transitions, 2401 flow. Second operand has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:57,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:45:57,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-20 13:45:57,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:45:57,640 INFO L124 PetriNetUnfolderBase]: 155/593 cut-off events. [2024-11-20 13:45:57,640 INFO L125 PetriNetUnfolderBase]: For 10525/10553 co-relation queries the response was YES. [2024-11-20 13:45:57,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3356 conditions, 593 events. 155/593 cut-off events. For 10525/10553 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3252 event pairs, 2 based on Foata normal form. 45/638 useless extension candidates. Maximal degree in co-relation 3291. Up to 159 conditions per place. [2024-11-20 13:45:57,645 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 0 selfloop transitions, 0 changer transitions 260/260 dead transitions. [2024-11-20 13:45:57,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 260 transitions, 3481 flow [2024-11-20 13:45:57,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-20 13:45:57,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-20 13:45:57,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1282 transitions. [2024-11-20 13:45:57,648 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6594650205761317 [2024-11-20 13:45:57,648 INFO L175 Difference]: Start difference. First operand has 222 places, 198 transitions, 2401 flow. Second operand 24 states and 1282 transitions. [2024-11-20 13:45:57,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 260 transitions, 3481 flow [2024-11-20 13:45:57,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 260 transitions, 3214 flow, removed 48 selfloop flow, removed 22 redundant places. [2024-11-20 13:45:57,692 INFO L231 Difference]: Finished difference. Result has 208 places, 0 transitions, 0 flow [2024-11-20 13:45:57,693 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=2230, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=0, PETRI_PLACES=208, PETRI_TRANSITIONS=0} [2024-11-20 13:45:57,694 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 125 predicate places. [2024-11-20 13:45:57,694 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 0 transitions, 0 flow [2024-11-20 13:45:57,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.92307692307692) internal successors, (675), 13 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:45:57,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2024-11-20 13:45:57,701 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-20 13:45:57,702 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2024-11-20 13:45:57,702 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2024-11-20 13:45:57,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 13:45:57,702 INFO L407 BasicCegarLoop]: Path program histogram: [14, 3, 1, 1, 1, 1] [2024-11-20 13:45:57,718 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 13:45:57,718 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 13:45:57,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:45:57 BasicIcfg [2024-11-20 13:45:57,725 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 13:45:57,726 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 13:45:57,726 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 13:45:57,726 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 13:45:57,726 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:45:29" (3/4) ... [2024-11-20 13:45:57,728 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 13:45:57,731 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-20 13:45:57,734 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-20 13:45:57,734 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-20 13:45:57,734 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-20 13:45:57,816 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 13:45:57,817 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 13:45:57,817 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 13:45:57,817 INFO L158 Benchmark]: Toolchain (without parser) took 29259.85ms. Allocated memory was 161.5MB in the beginning and 373.3MB in the end (delta: 211.8MB). Free memory was 105.1MB in the beginning and 197.1MB in the end (delta: -92.0MB). Peak memory consumption was 121.2MB. Max. memory is 16.1GB. [2024-11-20 13:45:57,818 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 161.5MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 13:45:57,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 620.03ms. Allocated memory is still 161.5MB. Free memory was 105.1MB in the beginning and 73.2MB in the end (delta: 31.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-20 13:45:57,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.42ms. Allocated memory is still 161.5MB. Free memory was 72.8MB in the beginning and 70.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 13:45:57,818 INFO L158 Benchmark]: Boogie Preprocessor took 47.16ms. Allocated memory is still 161.5MB. Free memory was 70.4MB in the beginning and 69.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 13:45:57,819 INFO L158 Benchmark]: RCFGBuilder took 408.49ms. Allocated memory is still 161.5MB. Free memory was 69.1MB in the beginning and 53.0MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-20 13:45:57,819 INFO L158 Benchmark]: TraceAbstraction took 28019.79ms. Allocated memory was 161.5MB in the beginning and 373.3MB in the end (delta: 211.8MB). Free memory was 52.3MB in the beginning and 201.3MB in the end (delta: -149.0MB). Peak memory consumption was 64.6MB. Max. memory is 16.1GB. [2024-11-20 13:45:57,819 INFO L158 Benchmark]: Witness Printer took 91.29ms. Allocated memory is still 373.3MB. Free memory was 201.3MB in the beginning and 197.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 13:45:57,821 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 161.5MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 620.03ms. Allocated memory is still 161.5MB. Free memory was 105.1MB in the beginning and 73.2MB in the end (delta: 31.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.42ms. Allocated memory is still 161.5MB. Free memory was 72.8MB in the beginning and 70.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.16ms. Allocated memory is still 161.5MB. Free memory was 70.4MB in the beginning and 69.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 408.49ms. Allocated memory is still 161.5MB. Free memory was 69.1MB in the beginning and 53.0MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 28019.79ms. Allocated memory was 161.5MB in the beginning and 373.3MB in the end (delta: 211.8MB). Free memory was 52.3MB in the beginning and 201.3MB in the end (delta: -149.0MB). Peak memory consumption was 64.6MB. Max. memory is 16.1GB. * Witness Printer took 91.29ms. Allocated memory is still 373.3MB. Free memory was 201.3MB in the beginning and 197.1MB 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: 999]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 994]: 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, 99 locations, 4 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: 27.9s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 14, EmptinessCheckTime: 0.0s, AutomataDifference: 19.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7611 SdHoareTripleChecker+Valid, 12.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6557 mSDsluCounter, 13445 SdHoareTripleChecker+Invalid, 10.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12803 mSDsCounter, 618 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24361 IncrementalHoareTripleChecker+Invalid, 24979 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 618 mSolverCounterUnsat, 642 mSDtfsCounter, 24361 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 465 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 438 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1211 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2831occurred in iteration=18, InterpolantAutomatonStates: 298, 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, 0.2s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 1220 NumberOfCodeBlocks, 1220 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1199 ConstructedInterpolants, 0 QuantifiedInterpolants, 7979 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-20 13:45:57,843 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