./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/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-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:49:24,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:49:24,177 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:49:24,182 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:49:24,185 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:49:24,216 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:49:24,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:49:24,217 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:49:24,218 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:49:24,219 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:49:24,220 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:49:24,220 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:49:24,220 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:49:24,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:49:24,223 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:49:24,223 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:49:24,224 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:49:24,224 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:49:24,224 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:49:24,225 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:49:24,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:49:24,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:49:24,229 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:49:24,229 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:49:24,229 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:49:24,229 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:49:24,230 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:49:24,230 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:49:24,230 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:49:24,231 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:49:24,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:49:24,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:49:24,231 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:49:24,231 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:49:24,232 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:49:24,232 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:49:24,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:49:24,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:49:24,234 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:49:24,235 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:49:24,235 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:49:24,236 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 [2024-11-19 05:49:24,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:49:24,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:49:24,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:49:24,546 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:49:24,547 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:49:24,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2024-11-19 05:49:26,032 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:49:26,279 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:49:26,280 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2024-11-19 05:49:26,297 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06ffd9ad3/f586a757e8b3421a8f9e62845bc3d980/FLAG45547f290 [2024-11-19 05:49:26,313 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06ffd9ad3/f586a757e8b3421a8f9e62845bc3d980 [2024-11-19 05:49:26,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:49:26,318 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:49:26,321 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:49:26,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:49:26,328 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:49:26,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:49:26" (1/1) ... [2024-11-19 05:49:26,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a0a2d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:26, skipping insertion in model container [2024-11-19 05:49:26,330 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:49:26" (1/1) ... [2024-11-19 05:49:26,380 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:49:26,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:49:26,923 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:49:26,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:49:27,046 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:49:27,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:27 WrapperNode [2024-11-19 05:49:27,046 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:49:27,048 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:49:27,048 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:49:27,049 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:49:27,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:27" (1/1) ... [2024-11-19 05:49:27,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:27" (1/1) ... [2024-11-19 05:49:27,098 INFO L138 Inliner]: procedures = 266, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2024-11-19 05:49:27,099 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:49:27,099 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:49:27,100 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:49:27,100 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:49:27,108 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:27" (1/1) ... [2024-11-19 05:49:27,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:27" (1/1) ... [2024-11-19 05:49:27,112 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:27" (1/1) ... [2024-11-19 05:49:27,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:27" (1/1) ... [2024-11-19 05:49:27,123 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:27" (1/1) ... [2024-11-19 05:49:27,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:27" (1/1) ... [2024-11-19 05:49:27,127 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:27" (1/1) ... [2024-11-19 05:49:27,128 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:27" (1/1) ... [2024-11-19 05:49:27,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:49:27,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:49:27,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:49:27,132 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:49:27,133 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:27" (1/1) ... [2024-11-19 05:49:27,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:49:27,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:27,170 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) [2024-11-19 05:49:27,173 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 [2024-11-19 05:49:27,210 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 05:49:27,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:49:27,210 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 05:49:27,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:49:27,210 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 05:49:27,211 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 05:49:27,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:49:27,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:49:27,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:49:27,212 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:49:27,334 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:49:27,336 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:49:27,531 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:49:27,532 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:49:27,555 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:49:27,556 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 05:49:27,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:49:27 BoogieIcfgContainer [2024-11-19 05:49:27,556 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:49:27,558 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:49:27,558 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:49:27,562 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:49:27,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:49:26" (1/3) ... [2024-11-19 05:49:27,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d1de21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:49:27, skipping insertion in model container [2024-11-19 05:49:27,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:27" (2/3) ... [2024-11-19 05:49:27,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d1de21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:49:27, skipping insertion in model container [2024-11-19 05:49:27,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:49:27" (3/3) ... [2024-11-19 05:49:27,565 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2024-11-19 05:49:27,582 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:49:27,583 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 05:49:27,583 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:49:27,657 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 05:49:27,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 81 transitions, 166 flow [2024-11-19 05:49:27,749 INFO L124 PetriNetUnfolderBase]: 1/80 cut-off events. [2024-11-19 05:49:27,750 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:49:27,757 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. [2024-11-19 05:49:27,758 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 81 transitions, 166 flow [2024-11-19 05:49:27,761 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 80 transitions, 163 flow [2024-11-19 05:49:27,774 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:49:27,782 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;@287bdce3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:49:27,782 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-19 05:49:27,801 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:49:27,802 INFO L124 PetriNetUnfolderBase]: 1/58 cut-off events. [2024-11-19 05:49:27,802 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:49:27,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:27,803 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] [2024-11-19 05:49:27,803 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)] === [2024-11-19 05:49:27,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:27,809 INFO L85 PathProgramCache]: Analyzing trace with hash 986417451, now seen corresponding path program 1 times [2024-11-19 05:49:27,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:27,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973330735] [2024-11-19 05:49:27,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:27,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:28,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:28,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:28,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973330735] [2024-11-19 05:49:28,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973330735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:28,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:28,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:49:28,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684346740] [2024-11-19 05:49:28,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:28,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:49:28,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:28,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:49:28,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:28,949 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 81 [2024-11-19 05:49:28,953 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) [2024-11-19 05:49:28,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:28,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 81 [2024-11-19 05:49:28,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:29,206 INFO L124 PetriNetUnfolderBase]: 79/347 cut-off events. [2024-11-19 05:49:29,206 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:49:29,211 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. [2024-11-19 05:49:29,214 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 21 selfloop transitions, 22 changer transitions 4/109 dead transitions. [2024-11-19 05:49:29,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 109 transitions, 315 flow [2024-11-19 05:49:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:49:29,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:49:29,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 426 transitions. [2024-11-19 05:49:29,233 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8765432098765432 [2024-11-19 05:49:29,235 INFO L175 Difference]: Start difference. First operand has 83 places, 80 transitions, 163 flow. Second operand 6 states and 426 transitions. [2024-11-19 05:49:29,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 109 transitions, 315 flow [2024-11-19 05:49:29,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 109 transitions, 314 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:29,248 INFO L231 Difference]: Finished difference. Result has 92 places, 101 transitions, 312 flow [2024-11-19 05:49:29,250 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} [2024-11-19 05:49:29,256 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 9 predicate places. [2024-11-19 05:49:29,257 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 101 transitions, 312 flow [2024-11-19 05:49:29,257 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) [2024-11-19 05:49:29,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:29,258 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] [2024-11-19 05:49:29,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:49:29,258 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)] === [2024-11-19 05:49:29,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:29,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1846228120, now seen corresponding path program 1 times [2024-11-19 05:49:29,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:29,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371823624] [2024-11-19 05:49:29,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:29,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:29,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:29,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:29,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371823624] [2024-11-19 05:49:29,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371823624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:29,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:29,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:49:29,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701277499] [2024-11-19 05:49:29,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:29,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:49:29,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:29,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:49:29,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:29,727 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 81 [2024-11-19 05:49:29,728 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) [2024-11-19 05:49:29,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:29,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 81 [2024-11-19 05:49:29,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:29,904 INFO L124 PetriNetUnfolderBase]: 144/520 cut-off events. [2024-11-19 05:49:29,904 INFO L125 PetriNetUnfolderBase]: For 144/146 co-relation queries the response was YES. [2024-11-19 05:49:29,907 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. [2024-11-19 05:49:29,911 INFO L140 encePairwiseOnDemand]: 70/81 looper letters, 38 selfloop transitions, 29 changer transitions 7/136 dead transitions. [2024-11-19 05:49:29,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 136 transitions, 600 flow [2024-11-19 05:49:29,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:49:29,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:49:29,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 416 transitions. [2024-11-19 05:49:29,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8559670781893004 [2024-11-19 05:49:29,913 INFO L175 Difference]: Start difference. First operand has 92 places, 101 transitions, 312 flow. Second operand 6 states and 416 transitions. [2024-11-19 05:49:29,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 136 transitions, 600 flow [2024-11-19 05:49:29,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 136 transitions, 600 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:29,926 INFO L231 Difference]: Finished difference. Result has 102 places, 125 transitions, 566 flow [2024-11-19 05:49:29,927 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} [2024-11-19 05:49:29,927 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 19 predicate places. [2024-11-19 05:49:29,928 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 125 transitions, 566 flow [2024-11-19 05:49:29,928 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) [2024-11-19 05:49:29,928 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:29,929 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] [2024-11-19 05:49:29,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:49:29,929 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)] === [2024-11-19 05:49:29,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:29,930 INFO L85 PathProgramCache]: Analyzing trace with hash 878789003, now seen corresponding path program 1 times [2024-11-19 05:49:29,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:29,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009280132] [2024-11-19 05:49:29,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:29,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:30,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:30,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:30,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009280132] [2024-11-19 05:49:30,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009280132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:30,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:30,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 05:49:30,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575825352] [2024-11-19 05:49:30,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:30,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 05:49:30,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:30,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 05:49:30,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-19 05:49:30,509 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 81 [2024-11-19 05:49:30,510 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) [2024-11-19 05:49:30,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:30,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 81 [2024-11-19 05:49:30,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:30,629 INFO L124 PetriNetUnfolderBase]: 88/454 cut-off events. [2024-11-19 05:49:30,630 INFO L125 PetriNetUnfolderBase]: For 188/192 co-relation queries the response was YES. [2024-11-19 05:49:30,631 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. [2024-11-19 05:49:30,633 INFO L140 encePairwiseOnDemand]: 73/81 looper letters, 11 selfloop transitions, 4 changer transitions 13/137 dead transitions. [2024-11-19 05:49:30,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 137 transitions, 646 flow [2024-11-19 05:49:30,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 05:49:30,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 05:49:30,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 491 transitions. [2024-11-19 05:49:30,635 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8659611992945326 [2024-11-19 05:49:30,635 INFO L175 Difference]: Start difference. First operand has 102 places, 125 transitions, 566 flow. Second operand 7 states and 491 transitions. [2024-11-19 05:49:30,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 137 transitions, 646 flow [2024-11-19 05:49:30,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 137 transitions, 628 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:30,648 INFO L231 Difference]: Finished difference. Result has 111 places, 123 transitions, 562 flow [2024-11-19 05:49:30,649 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} [2024-11-19 05:49:30,650 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 28 predicate places. [2024-11-19 05:49:30,650 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 123 transitions, 562 flow [2024-11-19 05:49:30,651 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) [2024-11-19 05:49:30,651 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:30,651 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] [2024-11-19 05:49:30,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:49:30,652 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)] === [2024-11-19 05:49:30,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:30,652 INFO L85 PathProgramCache]: Analyzing trace with hash -752278149, now seen corresponding path program 1 times [2024-11-19 05:49:30,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:30,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256310421] [2024-11-19 05:49:30,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:30,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:31,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:31,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:31,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256310421] [2024-11-19 05:49:31,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256310421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:31,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:31,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:31,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800231044] [2024-11-19 05:49:31,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:31,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:31,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:31,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:31,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:31,764 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-19 05:49:31,765 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) [2024-11-19 05:49:31,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:31,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-19 05:49:31,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:32,296 INFO L124 PetriNetUnfolderBase]: 241/702 cut-off events. [2024-11-19 05:49:32,297 INFO L125 PetriNetUnfolderBase]: For 686/692 co-relation queries the response was YES. [2024-11-19 05:49:32,299 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. [2024-11-19 05:49:32,303 INFO L140 encePairwiseOnDemand]: 65/81 looper letters, 105 selfloop transitions, 41 changer transitions 34/230 dead transitions. [2024-11-19 05:49:32,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 230 transitions, 1560 flow [2024-11-19 05:49:32,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:32,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:32,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 846 transitions. [2024-11-19 05:49:32,306 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6962962962962963 [2024-11-19 05:49:32,306 INFO L175 Difference]: Start difference. First operand has 111 places, 123 transitions, 562 flow. Second operand 15 states and 846 transitions. [2024-11-19 05:49:32,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 230 transitions, 1560 flow [2024-11-19 05:49:32,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 230 transitions, 1532 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-19 05:49:32,316 INFO L231 Difference]: Finished difference. Result has 127 places, 146 transitions, 908 flow [2024-11-19 05:49:32,316 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} [2024-11-19 05:49:32,317 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 44 predicate places. [2024-11-19 05:49:32,317 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 146 transitions, 908 flow [2024-11-19 05:49:32,318 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) [2024-11-19 05:49:32,318 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:32,318 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] [2024-11-19 05:49:32,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:49:32,319 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)] === [2024-11-19 05:49:32,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:32,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1100070851, now seen corresponding path program 2 times [2024-11-19 05:49:32,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:32,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343135005] [2024-11-19 05:49:32,320 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:32,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:32,338 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:32,339 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:32,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:32,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:32,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343135005] [2024-11-19 05:49:32,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343135005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:32,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:32,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:32,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999030025] [2024-11-19 05:49:32,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:32,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:32,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:32,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:32,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:33,452 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-19 05:49:33,453 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) [2024-11-19 05:49:33,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:33,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-19 05:49:33,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:33,991 INFO L124 PetriNetUnfolderBase]: 206/641 cut-off events. [2024-11-19 05:49:33,991 INFO L125 PetriNetUnfolderBase]: For 1660/1672 co-relation queries the response was YES. [2024-11-19 05:49:33,994 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. [2024-11-19 05:49:33,997 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 75 selfloop transitions, 39 changer transitions 32/196 dead transitions. [2024-11-19 05:49:33,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 196 transitions, 1494 flow [2024-11-19 05:49:33,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 05:49:33,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 05:49:33,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 752 transitions. [2024-11-19 05:49:34,000 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7141500474833808 [2024-11-19 05:49:34,000 INFO L175 Difference]: Start difference. First operand has 127 places, 146 transitions, 908 flow. Second operand 13 states and 752 transitions. [2024-11-19 05:49:34,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 196 transitions, 1494 flow [2024-11-19 05:49:34,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 196 transitions, 1416 flow, removed 6 selfloop flow, removed 10 redundant places. [2024-11-19 05:49:34,016 INFO L231 Difference]: Finished difference. Result has 130 places, 146 transitions, 977 flow [2024-11-19 05:49:34,017 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} [2024-11-19 05:49:34,018 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 47 predicate places. [2024-11-19 05:49:34,018 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 146 transitions, 977 flow [2024-11-19 05:49:34,019 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) [2024-11-19 05:49:34,019 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:34,019 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] [2024-11-19 05:49:34,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 05:49:34,019 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)] === [2024-11-19 05:49:34,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:34,020 INFO L85 PathProgramCache]: Analyzing trace with hash -765698169, now seen corresponding path program 3 times [2024-11-19 05:49:34,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:34,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238616601] [2024-11-19 05:49:34,020 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 05:49:34,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:34,040 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 05:49:34,041 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:34,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:34,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:34,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238616601] [2024-11-19 05:49:34,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238616601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:34,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:34,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:34,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329290827] [2024-11-19 05:49:34,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:34,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:34,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:34,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:34,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:35,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-19 05:49:35,160 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) [2024-11-19 05:49:35,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:35,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-19 05:49:35,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:35,787 INFO L124 PetriNetUnfolderBase]: 289/838 cut-off events. [2024-11-19 05:49:35,788 INFO L125 PetriNetUnfolderBase]: For 3142/3158 co-relation queries the response was YES. [2024-11-19 05:49:35,792 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. [2024-11-19 05:49:35,797 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 132 selfloop transitions, 62 changer transitions 15/259 dead transitions. [2024-11-19 05:49:35,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 259 transitions, 2389 flow [2024-11-19 05:49:35,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:35,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:35,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 847 transitions. [2024-11-19 05:49:35,800 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.697119341563786 [2024-11-19 05:49:35,800 INFO L175 Difference]: Start difference. First operand has 130 places, 146 transitions, 977 flow. Second operand 15 states and 847 transitions. [2024-11-19 05:49:35,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 259 transitions, 2389 flow [2024-11-19 05:49:35,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 259 transitions, 2271 flow, removed 9 selfloop flow, removed 10 redundant places. [2024-11-19 05:49:35,824 INFO L231 Difference]: Finished difference. Result has 140 places, 184 transitions, 1566 flow [2024-11-19 05:49:35,825 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} [2024-11-19 05:49:35,828 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 57 predicate places. [2024-11-19 05:49:35,828 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 184 transitions, 1566 flow [2024-11-19 05:49:35,829 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) [2024-11-19 05:49:35,829 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:35,829 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] [2024-11-19 05:49:35,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 05:49:35,829 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)] === [2024-11-19 05:49:35,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:35,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1837082241, now seen corresponding path program 4 times [2024-11-19 05:49:35,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:35,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572933629] [2024-11-19 05:49:35,831 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 05:49:35,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:35,851 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 05:49:35,852 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:36,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:36,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:36,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572933629] [2024-11-19 05:49:36,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572933629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:36,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:36,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:36,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187811729] [2024-11-19 05:49:36,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:36,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:36,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:36,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:36,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:36,731 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-19 05:49:36,733 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) [2024-11-19 05:49:36,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:36,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-19 05:49:36,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:37,427 INFO L124 PetriNetUnfolderBase]: 308/885 cut-off events. [2024-11-19 05:49:37,427 INFO L125 PetriNetUnfolderBase]: For 5242/5267 co-relation queries the response was YES. [2024-11-19 05:49:37,432 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. [2024-11-19 05:49:37,437 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 111 selfloop transitions, 64 changer transitions 29/254 dead transitions. [2024-11-19 05:49:37,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 254 transitions, 2527 flow [2024-11-19 05:49:37,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:37,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:37,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 858 transitions. [2024-11-19 05:49:37,441 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7061728395061728 [2024-11-19 05:49:37,441 INFO L175 Difference]: Start difference. First operand has 140 places, 184 transitions, 1566 flow. Second operand 15 states and 858 transitions. [2024-11-19 05:49:37,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 254 transitions, 2527 flow [2024-11-19 05:49:37,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 254 transitions, 2423 flow, removed 31 selfloop flow, removed 8 redundant places. [2024-11-19 05:49:37,476 INFO L231 Difference]: Finished difference. Result has 152 places, 197 transitions, 1888 flow [2024-11-19 05:49:37,476 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} [2024-11-19 05:49:37,477 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 69 predicate places. [2024-11-19 05:49:37,477 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 197 transitions, 1888 flow [2024-11-19 05:49:37,478 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) [2024-11-19 05:49:37,478 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:37,478 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] [2024-11-19 05:49:37,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 05:49:37,478 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)] === [2024-11-19 05:49:37,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:37,479 INFO L85 PathProgramCache]: Analyzing trace with hash -137656509, now seen corresponding path program 1 times [2024-11-19 05:49:37,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:37,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959939517] [2024-11-19 05:49:37,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:37,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:37,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:37,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:37,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959939517] [2024-11-19 05:49:37,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959939517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:37,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:37,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:37,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193433107] [2024-11-19 05:49:37,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:37,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:37,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:37,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:37,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:38,489 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-19 05:49:38,490 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) [2024-11-19 05:49:38,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:38,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-19 05:49:38,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:38,968 INFO L124 PetriNetUnfolderBase]: 282/807 cut-off events. [2024-11-19 05:49:38,969 INFO L125 PetriNetUnfolderBase]: For 5541/5565 co-relation queries the response was YES. [2024-11-19 05:49:38,973 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. [2024-11-19 05:49:38,978 INFO L140 encePairwiseOnDemand]: 66/81 looper letters, 132 selfloop transitions, 61 changer transitions 14/262 dead transitions. [2024-11-19 05:49:38,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 262 transitions, 2998 flow [2024-11-19 05:49:38,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 05:49:38,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-19 05:49:38,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 669 transitions. [2024-11-19 05:49:38,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6882716049382716 [2024-11-19 05:49:38,980 INFO L175 Difference]: Start difference. First operand has 152 places, 197 transitions, 1888 flow. Second operand 12 states and 669 transitions. [2024-11-19 05:49:38,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 262 transitions, 2998 flow [2024-11-19 05:49:39,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 262 transitions, 2880 flow, removed 17 selfloop flow, removed 8 redundant places. [2024-11-19 05:49:39,013 INFO L231 Difference]: Finished difference. Result has 152 places, 191 transitions, 1884 flow [2024-11-19 05:49:39,014 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} [2024-11-19 05:49:39,014 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 69 predicate places. [2024-11-19 05:49:39,015 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 191 transitions, 1884 flow [2024-11-19 05:49:39,015 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) [2024-11-19 05:49:39,015 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:39,015 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] [2024-11-19 05:49:39,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 05:49:39,016 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)] === [2024-11-19 05:49:39,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:39,016 INFO L85 PathProgramCache]: Analyzing trace with hash -181087335, now seen corresponding path program 5 times [2024-11-19 05:49:39,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:39,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169955097] [2024-11-19 05:49:39,017 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 05:49:39,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:39,029 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:39,029 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:39,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:39,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:39,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169955097] [2024-11-19 05:49:39,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169955097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:39,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:39,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:39,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356751717] [2024-11-19 05:49:39,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:39,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:39,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:39,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:39,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:39,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-19 05:49:39,860 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) [2024-11-19 05:49:39,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:39,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-19 05:49:39,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:40,425 INFO L124 PetriNetUnfolderBase]: 286/802 cut-off events. [2024-11-19 05:49:40,425 INFO L125 PetriNetUnfolderBase]: For 6379/6416 co-relation queries the response was YES. [2024-11-19 05:49:40,430 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. [2024-11-19 05:49:40,433 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 93 selfloop transitions, 43 changer transitions 51/233 dead transitions. [2024-11-19 05:49:40,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 233 transitions, 2673 flow [2024-11-19 05:49:40,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 05:49:40,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 05:49:40,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 790 transitions. [2024-11-19 05:49:40,436 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6966490299823633 [2024-11-19 05:49:40,436 INFO L175 Difference]: Start difference. First operand has 152 places, 191 transitions, 1884 flow. Second operand 14 states and 790 transitions. [2024-11-19 05:49:40,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 233 transitions, 2673 flow [2024-11-19 05:49:40,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 233 transitions, 2497 flow, removed 4 selfloop flow, removed 12 redundant places. [2024-11-19 05:49:40,473 INFO L231 Difference]: Finished difference. Result has 156 places, 166 transitions, 1549 flow [2024-11-19 05:49:40,473 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} [2024-11-19 05:49:40,475 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 73 predicate places. [2024-11-19 05:49:40,475 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 166 transitions, 1549 flow [2024-11-19 05:49:40,475 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) [2024-11-19 05:49:40,476 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:40,476 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] [2024-11-19 05:49:40,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 05:49:40,476 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)] === [2024-11-19 05:49:40,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:40,477 INFO L85 PathProgramCache]: Analyzing trace with hash -972754177, now seen corresponding path program 6 times [2024-11-19 05:49:40,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:40,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025889009] [2024-11-19 05:49:40,477 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 05:49:40,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:40,491 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 05:49:40,491 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:40,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:40,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:40,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025889009] [2024-11-19 05:49:40,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025889009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:40,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:40,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:40,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440259894] [2024-11-19 05:49:40,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:40,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:40,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:40,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:40,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:41,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-19 05:49:41,193 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) [2024-11-19 05:49:41,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:41,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-19 05:49:41,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:41,664 INFO L124 PetriNetUnfolderBase]: 217/694 cut-off events. [2024-11-19 05:49:41,664 INFO L125 PetriNetUnfolderBase]: For 7022/7049 co-relation queries the response was YES. [2024-11-19 05:49:41,668 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. [2024-11-19 05:49:41,672 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 100 selfloop transitions, 44 changer transitions 20/210 dead transitions. [2024-11-19 05:49:41,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 210 transitions, 2366 flow [2024-11-19 05:49:41,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 05:49:41,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 05:49:41,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 785 transitions. [2024-11-19 05:49:41,675 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6922398589065256 [2024-11-19 05:49:41,675 INFO L175 Difference]: Start difference. First operand has 156 places, 166 transitions, 1549 flow. Second operand 14 states and 785 transitions. [2024-11-19 05:49:41,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 210 transitions, 2366 flow [2024-11-19 05:49:41,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 210 transitions, 2053 flow, removed 50 selfloop flow, removed 17 redundant places. [2024-11-19 05:49:41,708 INFO L231 Difference]: Finished difference. Result has 156 places, 173 transitions, 1579 flow [2024-11-19 05:49:41,708 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} [2024-11-19 05:49:41,709 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 73 predicate places. [2024-11-19 05:49:41,709 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 173 transitions, 1579 flow [2024-11-19 05:49:41,710 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) [2024-11-19 05:49:41,710 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:41,710 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] [2024-11-19 05:49:41,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 05:49:41,710 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)] === [2024-11-19 05:49:41,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:41,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1849243779, now seen corresponding path program 7 times [2024-11-19 05:49:41,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:41,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364946994] [2024-11-19 05:49:41,711 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 05:49:41,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:42,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:42,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:42,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364946994] [2024-11-19 05:49:42,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364946994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:42,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:42,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:42,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318031366] [2024-11-19 05:49:42,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:42,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:42,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:42,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:42,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:42,594 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-19 05:49:42,595 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) [2024-11-19 05:49:42,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:42,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-19 05:49:42,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:43,139 INFO L124 PetriNetUnfolderBase]: 249/765 cut-off events. [2024-11-19 05:49:43,140 INFO L125 PetriNetUnfolderBase]: For 6569/6609 co-relation queries the response was YES. [2024-11-19 05:49:43,145 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. [2024-11-19 05:49:43,150 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 141 selfloop transitions, 61 changer transitions 16/264 dead transitions. [2024-11-19 05:49:43,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 264 transitions, 2958 flow [2024-11-19 05:49:43,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:43,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:43,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 841 transitions. [2024-11-19 05:49:43,153 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6921810699588478 [2024-11-19 05:49:43,154 INFO L175 Difference]: Start difference. First operand has 156 places, 173 transitions, 1579 flow. Second operand 15 states and 841 transitions. [2024-11-19 05:49:43,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 264 transitions, 2958 flow [2024-11-19 05:49:43,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 264 transitions, 2897 flow, removed 18 selfloop flow, removed 8 redundant places. [2024-11-19 05:49:43,191 INFO L231 Difference]: Finished difference. Result has 168 places, 193 transitions, 2028 flow [2024-11-19 05:49:43,192 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} [2024-11-19 05:49:43,192 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 85 predicate places. [2024-11-19 05:49:43,193 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 193 transitions, 2028 flow [2024-11-19 05:49:43,193 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) [2024-11-19 05:49:43,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:43,194 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] [2024-11-19 05:49:43,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 05:49:43,194 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)] === [2024-11-19 05:49:43,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:43,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1388040677, now seen corresponding path program 8 times [2024-11-19 05:49:43,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:43,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189930698] [2024-11-19 05:49:43,195 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:43,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:43,209 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:43,209 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:43,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:43,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:43,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189930698] [2024-11-19 05:49:43,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189930698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:43,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:43,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:43,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745830208] [2024-11-19 05:49:43,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:43,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:43,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:43,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:43,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:44,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-19 05:49:44,062 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) [2024-11-19 05:49:44,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:44,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-19 05:49:44,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:44,515 INFO L124 PetriNetUnfolderBase]: 251/754 cut-off events. [2024-11-19 05:49:44,515 INFO L125 PetriNetUnfolderBase]: For 9120/9160 co-relation queries the response was YES. [2024-11-19 05:49:44,523 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. [2024-11-19 05:49:44,528 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 142 selfloop transitions, 57 changer transitions 20/265 dead transitions. [2024-11-19 05:49:44,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 265 transitions, 3322 flow [2024-11-19 05:49:44,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:44,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:44,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 838 transitions. [2024-11-19 05:49:44,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6897119341563785 [2024-11-19 05:49:44,530 INFO L175 Difference]: Start difference. First operand has 168 places, 193 transitions, 2028 flow. Second operand 15 states and 838 transitions. [2024-11-19 05:49:44,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 265 transitions, 3322 flow [2024-11-19 05:49:44,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 265 transitions, 3119 flow, removed 65 selfloop flow, removed 10 redundant places. [2024-11-19 05:49:44,584 INFO L231 Difference]: Finished difference. Result has 177 places, 206 transitions, 2257 flow [2024-11-19 05:49:44,584 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} [2024-11-19 05:49:44,586 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 94 predicate places. [2024-11-19 05:49:44,586 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 206 transitions, 2257 flow [2024-11-19 05:49:44,587 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) [2024-11-19 05:49:44,587 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:44,587 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] [2024-11-19 05:49:44,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 05:49:44,587 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)] === [2024-11-19 05:49:44,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:44,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1674150571, now seen corresponding path program 9 times [2024-11-19 05:49:44,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:44,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768595760] [2024-11-19 05:49:44,588 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 05:49:44,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:44,602 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 05:49:44,602 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:44,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:44,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:44,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768595760] [2024-11-19 05:49:44,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768595760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:44,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:44,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:44,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595297416] [2024-11-19 05:49:44,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:44,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:44,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:44,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:44,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:45,375 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-19 05:49:45,376 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) [2024-11-19 05:49:45,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:45,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-19 05:49:45,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:45,815 INFO L124 PetriNetUnfolderBase]: 228/716 cut-off events. [2024-11-19 05:49:45,815 INFO L125 PetriNetUnfolderBase]: For 8916/8959 co-relation queries the response was YES. [2024-11-19 05:49:45,820 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. [2024-11-19 05:49:45,823 INFO L140 encePairwiseOnDemand]: 61/81 looper letters, 123 selfloop transitions, 50 changer transitions 32/251 dead transitions. [2024-11-19 05:49:45,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 251 transitions, 3189 flow [2024-11-19 05:49:45,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:45,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:45,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 836 transitions. [2024-11-19 05:49:45,826 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6880658436213992 [2024-11-19 05:49:45,826 INFO L175 Difference]: Start difference. First operand has 177 places, 206 transitions, 2257 flow. Second operand 15 states and 836 transitions. [2024-11-19 05:49:45,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 251 transitions, 3189 flow [2024-11-19 05:49:45,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 251 transitions, 3024 flow, removed 55 selfloop flow, removed 11 redundant places. [2024-11-19 05:49:45,867 INFO L231 Difference]: Finished difference. Result has 184 places, 201 transitions, 2189 flow [2024-11-19 05:49:45,867 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} [2024-11-19 05:49:45,868 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 101 predicate places. [2024-11-19 05:49:45,868 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 201 transitions, 2189 flow [2024-11-19 05:49:45,868 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) [2024-11-19 05:49:45,868 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:45,868 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] [2024-11-19 05:49:45,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 05:49:45,869 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)] === [2024-11-19 05:49:45,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:45,869 INFO L85 PathProgramCache]: Analyzing trace with hash -246324857, now seen corresponding path program 10 times [2024-11-19 05:49:45,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:45,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585101189] [2024-11-19 05:49:45,869 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 05:49:45,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:45,886 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 05:49:45,886 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:46,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:46,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:46,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585101189] [2024-11-19 05:49:46,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585101189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:46,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:46,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:46,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597827547] [2024-11-19 05:49:46,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:46,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:46,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:46,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:46,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:46,641 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-19 05:49:46,641 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) [2024-11-19 05:49:46,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:46,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-19 05:49:46,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:47,080 INFO L124 PetriNetUnfolderBase]: 250/796 cut-off events. [2024-11-19 05:49:47,080 INFO L125 PetriNetUnfolderBase]: For 12174/12212 co-relation queries the response was YES. [2024-11-19 05:49:47,086 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. [2024-11-19 05:49:47,092 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 148 selfloop transitions, 64 changer transitions 13/271 dead transitions. [2024-11-19 05:49:47,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 271 transitions, 3509 flow [2024-11-19 05:49:47,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:47,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:47,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 840 transitions. [2024-11-19 05:49:47,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.691358024691358 [2024-11-19 05:49:47,094 INFO L175 Difference]: Start difference. First operand has 184 places, 201 transitions, 2189 flow. Second operand 15 states and 840 transitions. [2024-11-19 05:49:47,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 271 transitions, 3509 flow [2024-11-19 05:49:47,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 271 transitions, 3395 flow, removed 27 selfloop flow, removed 11 redundant places. [2024-11-19 05:49:47,150 INFO L231 Difference]: Finished difference. Result has 189 places, 219 transitions, 2605 flow [2024-11-19 05:49:47,151 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} [2024-11-19 05:49:47,152 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 106 predicate places. [2024-11-19 05:49:47,152 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 219 transitions, 2605 flow [2024-11-19 05:49:47,153 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) [2024-11-19 05:49:47,153 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:47,153 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] [2024-11-19 05:49:47,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 05:49:47,153 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)] === [2024-11-19 05:49:47,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:47,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1976196377, now seen corresponding path program 11 times [2024-11-19 05:49:47,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:47,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015267029] [2024-11-19 05:49:47,154 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 05:49:47,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:47,164 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:47,164 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:47,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:47,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:47,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015267029] [2024-11-19 05:49:47,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015267029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:47,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:47,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:47,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999060349] [2024-11-19 05:49:47,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:47,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:47,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:47,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:47,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:47,893 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-19 05:49:47,894 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) [2024-11-19 05:49:47,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:47,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-19 05:49:47,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:48,251 INFO L124 PetriNetUnfolderBase]: 244/793 cut-off events. [2024-11-19 05:49:48,251 INFO L125 PetriNetUnfolderBase]: For 13142/13187 co-relation queries the response was YES. [2024-11-19 05:49:48,256 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. [2024-11-19 05:49:48,261 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 134 selfloop transitions, 52 changer transitions 15/247 dead transitions. [2024-11-19 05:49:48,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 247 transitions, 3316 flow [2024-11-19 05:49:48,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 05:49:48,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 05:49:48,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 774 transitions. [2024-11-19 05:49:48,265 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6825396825396826 [2024-11-19 05:49:48,267 INFO L175 Difference]: Start difference. First operand has 189 places, 219 transitions, 2605 flow. Second operand 14 states and 774 transitions. [2024-11-19 05:49:48,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 247 transitions, 3316 flow [2024-11-19 05:49:48,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 247 transitions, 3150 flow, removed 64 selfloop flow, removed 9 redundant places. [2024-11-19 05:49:48,327 INFO L231 Difference]: Finished difference. Result has 197 places, 221 transitions, 2631 flow [2024-11-19 05:49:48,328 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} [2024-11-19 05:49:48,328 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 114 predicate places. [2024-11-19 05:49:48,328 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 221 transitions, 2631 flow [2024-11-19 05:49:48,329 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) [2024-11-19 05:49:48,329 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:48,329 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] [2024-11-19 05:49:48,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 05:49:48,329 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)] === [2024-11-19 05:49:48,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:48,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1675784521, now seen corresponding path program 12 times [2024-11-19 05:49:48,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:48,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106714678] [2024-11-19 05:49:48,330 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 05:49:48,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:48,340 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 05:49:48,340 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:48,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:48,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:48,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106714678] [2024-11-19 05:49:48,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106714678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:48,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:48,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:48,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927465478] [2024-11-19 05:49:48,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:48,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:48,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:48,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:48,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:49,122 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-19 05:49:49,123 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) [2024-11-19 05:49:49,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:49,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-19 05:49:49,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:49,551 INFO L124 PetriNetUnfolderBase]: 235/780 cut-off events. [2024-11-19 05:49:49,551 INFO L125 PetriNetUnfolderBase]: For 12688/12722 co-relation queries the response was YES. [2024-11-19 05:49:49,555 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. [2024-11-19 05:49:49,560 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 134 selfloop transitions, 55 changer transitions 29/264 dead transitions. [2024-11-19 05:49:49,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 264 transitions, 3582 flow [2024-11-19 05:49:49,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:49,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:49,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 835 transitions. [2024-11-19 05:49:49,562 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6872427983539094 [2024-11-19 05:49:49,562 INFO L175 Difference]: Start difference. First operand has 197 places, 221 transitions, 2631 flow. Second operand 15 states and 835 transitions. [2024-11-19 05:49:49,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 264 transitions, 3582 flow [2024-11-19 05:49:49,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 264 transitions, 3425 flow, removed 35 selfloop flow, removed 11 redundant places. [2024-11-19 05:49:49,611 INFO L231 Difference]: Finished difference. Result has 204 places, 218 transitions, 2608 flow [2024-11-19 05:49:49,612 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} [2024-11-19 05:49:49,612 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 121 predicate places. [2024-11-19 05:49:49,612 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 218 transitions, 2608 flow [2024-11-19 05:49:49,613 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) [2024-11-19 05:49:49,613 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:49,613 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] [2024-11-19 05:49:49,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 05:49:49,613 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)] === [2024-11-19 05:49:49,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:49,613 INFO L85 PathProgramCache]: Analyzing trace with hash 621319205, now seen corresponding path program 13 times [2024-11-19 05:49:49,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:49,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097654531] [2024-11-19 05:49:49,614 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 05:49:49,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:49,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:49,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:49,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097654531] [2024-11-19 05:49:49,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097654531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:49,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:49,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:49,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130789554] [2024-11-19 05:49:49,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:49,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:49,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:49,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:49,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:50,371 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-19 05:49:50,372 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) [2024-11-19 05:49:50,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:50,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-19 05:49:50,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:50,784 INFO L124 PetriNetUnfolderBase]: 232/792 cut-off events. [2024-11-19 05:49:50,784 INFO L125 PetriNetUnfolderBase]: For 13627/13658 co-relation queries the response was YES. [2024-11-19 05:49:50,790 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. [2024-11-19 05:49:50,798 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 138 selfloop transitions, 55 changer transitions 23/262 dead transitions. [2024-11-19 05:49:50,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 262 transitions, 3622 flow [2024-11-19 05:49:50,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:50,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 832 transitions. [2024-11-19 05:49:50,802 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6847736625514403 [2024-11-19 05:49:50,802 INFO L175 Difference]: Start difference. First operand has 204 places, 218 transitions, 2608 flow. Second operand 15 states and 832 transitions. [2024-11-19 05:49:50,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 262 transitions, 3622 flow [2024-11-19 05:49:50,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 262 transitions, 3531 flow, removed 25 selfloop flow, removed 10 redundant places. [2024-11-19 05:49:50,871 INFO L231 Difference]: Finished difference. Result has 210 places, 223 transitions, 2770 flow [2024-11-19 05:49:50,872 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} [2024-11-19 05:49:50,872 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 127 predicate places. [2024-11-19 05:49:50,872 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 223 transitions, 2770 flow [2024-11-19 05:49:50,873 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) [2024-11-19 05:49:50,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:50,873 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] [2024-11-19 05:49:50,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 05:49:50,873 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)] === [2024-11-19 05:49:50,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:50,874 INFO L85 PathProgramCache]: Analyzing trace with hash 2081652893, now seen corresponding path program 14 times [2024-11-19 05:49:50,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:50,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924261609] [2024-11-19 05:49:50,874 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:50,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:50,887 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:50,887 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:51,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:51,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:51,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924261609] [2024-11-19 05:49:51,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924261609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:51,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:51,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:51,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930414552] [2024-11-19 05:49:51,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:51,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:51,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:51,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:51,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:51,608 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-19 05:49:51,608 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) [2024-11-19 05:49:51,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:51,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-19 05:49:51,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:52,137 INFO L124 PetriNetUnfolderBase]: 221/753 cut-off events. [2024-11-19 05:49:52,137 INFO L125 PetriNetUnfolderBase]: For 13880/13907 co-relation queries the response was YES. [2024-11-19 05:49:52,143 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. [2024-11-19 05:49:52,148 INFO L140 encePairwiseOnDemand]: 62/81 looper letters, 138 selfloop transitions, 61 changer transitions 26/271 dead transitions. [2024-11-19 05:49:52,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 271 transitions, 3866 flow [2024-11-19 05:49:52,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:52,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:52,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 834 transitions. [2024-11-19 05:49:52,150 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6864197530864198 [2024-11-19 05:49:52,150 INFO L175 Difference]: Start difference. First operand has 210 places, 223 transitions, 2770 flow. Second operand 15 states and 834 transitions. [2024-11-19 05:49:52,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 271 transitions, 3866 flow [2024-11-19 05:49:52,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 271 transitions, 3734 flow, removed 46 selfloop flow, removed 12 redundant places. [2024-11-19 05:49:52,225 INFO L231 Difference]: Finished difference. Result has 217 places, 221 transitions, 2831 flow [2024-11-19 05:49:52,226 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} [2024-11-19 05:49:52,226 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 134 predicate places. [2024-11-19 05:49:52,226 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 221 transitions, 2831 flow [2024-11-19 05:49:52,227 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) [2024-11-19 05:49:52,227 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:52,227 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] [2024-11-19 05:49:52,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 05:49:52,227 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)] === [2024-11-19 05:49:52,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:52,228 INFO L85 PathProgramCache]: Analyzing trace with hash -24746395, now seen corresponding path program 1 times [2024-11-19 05:49:52,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:52,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673008942] [2024-11-19 05:49:52,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:52,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:52,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:52,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673008942] [2024-11-19 05:49:52,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673008942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:52,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:52,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:52,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714949350] [2024-11-19 05:49:52,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:52,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:52,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:52,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:52,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:53,107 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-19 05:49:53,108 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) [2024-11-19 05:49:53,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:53,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-19 05:49:53,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:53,626 INFO L124 PetriNetUnfolderBase]: 208/740 cut-off events. [2024-11-19 05:49:53,627 INFO L125 PetriNetUnfolderBase]: For 12410/12438 co-relation queries the response was YES. [2024-11-19 05:49:53,632 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. [2024-11-19 05:49:53,634 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 123 selfloop transitions, 64 changer transitions 29/262 dead transitions. [2024-11-19 05:49:53,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 262 transitions, 3753 flow [2024-11-19 05:49:53,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 05:49:53,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-19 05:49:53,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 977 transitions. [2024-11-19 05:49:53,637 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6700960219478738 [2024-11-19 05:49:53,637 INFO L175 Difference]: Start difference. First operand has 217 places, 221 transitions, 2831 flow. Second operand 18 states and 977 transitions. [2024-11-19 05:49:53,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 262 transitions, 3753 flow [2024-11-19 05:49:53,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 262 transitions, 3581 flow, removed 73 selfloop flow, removed 10 redundant places. [2024-11-19 05:49:53,693 INFO L231 Difference]: Finished difference. Result has 218 places, 210 transitions, 2629 flow [2024-11-19 05:49:53,693 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} [2024-11-19 05:49:53,694 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 135 predicate places. [2024-11-19 05:49:53,694 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 210 transitions, 2629 flow [2024-11-19 05:49:53,694 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) [2024-11-19 05:49:53,694 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:53,695 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] [2024-11-19 05:49:53,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 05:49:53,695 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)] === [2024-11-19 05:49:53,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:53,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1196613613, now seen corresponding path program 2 times [2024-11-19 05:49:53,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:53,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22278375] [2024-11-19 05:49:53,695 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:53,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:53,707 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:53,708 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:53,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:53,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:53,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22278375] [2024-11-19 05:49:53,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22278375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:53,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:53,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:53,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286213767] [2024-11-19 05:49:53,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:53,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:53,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:53,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:53,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:54,520 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-19 05:49:54,520 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) [2024-11-19 05:49:54,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:54,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-19 05:49:54,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:55,000 INFO L124 PetriNetUnfolderBase]: 195/720 cut-off events. [2024-11-19 05:49:55,000 INFO L125 PetriNetUnfolderBase]: For 12654/12682 co-relation queries the response was YES. [2024-11-19 05:49:55,004 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. [2024-11-19 05:49:55,006 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 113 selfloop transitions, 56 changer transitions 37/252 dead transitions. [2024-11-19 05:49:55,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 252 transitions, 3605 flow [2024-11-19 05:49:55,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-19 05:49:55,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-19 05:49:55,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1077 transitions. [2024-11-19 05:49:55,008 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6648148148148149 [2024-11-19 05:49:55,009 INFO L175 Difference]: Start difference. First operand has 218 places, 210 transitions, 2629 flow. Second operand 20 states and 1077 transitions. [2024-11-19 05:49:55,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 252 transitions, 3605 flow [2024-11-19 05:49:55,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 252 transitions, 3396 flow, removed 35 selfloop flow, removed 17 redundant places. [2024-11-19 05:49:55,067 INFO L231 Difference]: Finished difference. Result has 222 places, 198 transitions, 2401 flow [2024-11-19 05:49:55,067 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} [2024-11-19 05:49:55,068 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 139 predicate places. [2024-11-19 05:49:55,068 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 198 transitions, 2401 flow [2024-11-19 05:49:55,068 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) [2024-11-19 05:49:55,068 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:55,068 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] [2024-11-19 05:49:55,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 05:49:55,069 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)] === [2024-11-19 05:49:55,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:55,069 INFO L85 PathProgramCache]: Analyzing trace with hash 681139153, now seen corresponding path program 3 times [2024-11-19 05:49:55,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:55,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985630284] [2024-11-19 05:49:55,069 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 05:49:55,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:55,087 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 05:49:55,087 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:55,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:55,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:55,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985630284] [2024-11-19 05:49:55,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985630284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:55,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:55,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:55,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257275072] [2024-11-19 05:49:55,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:55,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:55,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:55,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:55,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:55,717 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 81 [2024-11-19 05:49:55,717 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) [2024-11-19 05:49:55,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:55,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 81 [2024-11-19 05:49:55,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:56,228 INFO L124 PetriNetUnfolderBase]: 155/593 cut-off events. [2024-11-19 05:49:56,228 INFO L125 PetriNetUnfolderBase]: For 10525/10553 co-relation queries the response was YES. [2024-11-19 05:49:56,231 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. [2024-11-19 05:49:56,232 INFO L140 encePairwiseOnDemand]: 67/81 looper letters, 0 selfloop transitions, 0 changer transitions 260/260 dead transitions. [2024-11-19 05:49:56,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 260 transitions, 3481 flow [2024-11-19 05:49:56,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-19 05:49:56,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-19 05:49:56,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1282 transitions. [2024-11-19 05:49:56,235 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6594650205761317 [2024-11-19 05:49:56,236 INFO L175 Difference]: Start difference. First operand has 222 places, 198 transitions, 2401 flow. Second operand 24 states and 1282 transitions. [2024-11-19 05:49:56,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 260 transitions, 3481 flow [2024-11-19 05:49:56,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 260 transitions, 3214 flow, removed 48 selfloop flow, removed 22 redundant places. [2024-11-19 05:49:56,290 INFO L231 Difference]: Finished difference. Result has 208 places, 0 transitions, 0 flow [2024-11-19 05:49:56,290 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} [2024-11-19 05:49:56,291 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 125 predicate places. [2024-11-19 05:49:56,291 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 0 transitions, 0 flow [2024-11-19 05:49:56,292 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) [2024-11-19 05:49:56,294 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2024-11-19 05:49:56,295 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-19 05:49:56,295 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2024-11-19 05:49:56,295 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2024-11-19 05:49:56,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 05:49:56,295 INFO L407 BasicCegarLoop]: Path program histogram: [14, 3, 1, 1, 1, 1] [2024-11-19 05:49:56,300 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 05:49:56,301 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 05:49:56,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:49:56 BasicIcfg [2024-11-19 05:49:56,306 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 05:49:56,307 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 05:49:56,307 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 05:49:56,307 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 05:49:56,307 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:49:27" (3/4) ... [2024-11-19 05:49:56,309 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 05:49:56,312 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-19 05:49:56,316 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-19 05:49:56,316 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-19 05:49:56,317 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-19 05:49:56,401 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 05:49:56,402 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 05:49:56,402 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 05:49:56,402 INFO L158 Benchmark]: Toolchain (without parser) took 30085.00ms. Allocated memory was 176.2MB in the beginning and 534.8MB in the end (delta: 358.6MB). Free memory was 104.3MB in the beginning and 201.7MB in the end (delta: -97.4MB). Peak memory consumption was 262.6MB. Max. memory is 16.1GB. [2024-11-19 05:49:56,403 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 176.2MB. Free memory was 132.4MB in the beginning and 132.3MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 05:49:56,403 INFO L158 Benchmark]: CACSL2BoogieTranslator took 725.49ms. Allocated memory is still 176.2MB. Free memory was 104.2MB in the beginning and 129.9MB in the end (delta: -25.7MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2024-11-19 05:49:56,403 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.26ms. Allocated memory is still 176.2MB. Free memory was 129.9MB in the beginning and 127.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 05:49:56,404 INFO L158 Benchmark]: Boogie Preprocessor took 31.68ms. Allocated memory is still 176.2MB. Free memory was 127.7MB in the beginning and 125.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 05:49:56,404 INFO L158 Benchmark]: RCFGBuilder took 424.60ms. Allocated memory is still 176.2MB. Free memory was 125.7MB in the beginning and 108.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-19 05:49:56,404 INFO L158 Benchmark]: TraceAbstraction took 28748.16ms. Allocated memory was 176.2MB in the beginning and 534.8MB in the end (delta: 358.6MB). Free memory was 108.3MB in the beginning and 205.9MB in the end (delta: -97.7MB). Peak memory consumption was 263.3MB. Max. memory is 16.1GB. [2024-11-19 05:49:56,404 INFO L158 Benchmark]: Witness Printer took 95.38ms. Allocated memory is still 534.8MB. Free memory was 205.9MB in the beginning and 201.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 05:49:56,406 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 176.2MB. Free memory was 132.4MB in the beginning and 132.3MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 725.49ms. Allocated memory is still 176.2MB. Free memory was 104.2MB in the beginning and 129.9MB in the end (delta: -25.7MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.26ms. Allocated memory is still 176.2MB. Free memory was 129.9MB in the beginning and 127.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.68ms. Allocated memory is still 176.2MB. Free memory was 127.7MB in the beginning and 125.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 424.60ms. Allocated memory is still 176.2MB. Free memory was 125.7MB in the beginning and 108.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 28748.16ms. Allocated memory was 176.2MB in the beginning and 534.8MB in the end (delta: 358.6MB). Free memory was 108.3MB in the beginning and 205.9MB in the end (delta: -97.7MB). Peak memory consumption was 263.3MB. Max. memory is 16.1GB. * Witness Printer took 95.38ms. Allocated memory is still 534.8MB. Free memory was 205.9MB in the beginning and 201.7MB 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: 28.6s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 14, EmptinessCheckTime: 0.0s, AutomataDifference: 20.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7611 SdHoareTripleChecker+Valid, 12.7s 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, 5.4s 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 1220 NumberOfCodeBlocks, 1202 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! [2024-11-19 05:49:56,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE