./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.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 a178b12ba1b75e8e390c539a1b1599b5e56cbe73098e0c8e7ca0eeb62a619e80 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:49:11,451 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:49:11,504 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:49:11,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:49:11,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:49:11,534 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:49:11,536 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:49:11,537 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:49:11,537 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:49:11,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:49:11,538 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:49:11,539 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:49:11,539 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:49:11,539 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:49:11,541 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:49:11,542 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:49:11,542 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:49:11,542 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:49:11,542 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:49:11,542 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:49:11,542 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:49:11,546 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:49:11,546 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:49:11,547 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:49:11,547 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:49:11,547 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:49:11,547 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:49:11,547 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:49:11,547 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:49:11,547 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:49:11,548 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:49:11,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:49:11,548 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:49:11,548 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:49:11,548 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:49:11,548 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:49:11,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:49:11,549 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:49:11,549 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:49:11,549 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:49:11,549 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:49:11,550 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a178b12ba1b75e8e390c539a1b1599b5e56cbe73098e0c8e7ca0eeb62a619e80 [2024-11-20 13:49:11,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:49:11,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:49:11,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:49:11,779 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:49:11,779 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:49:11,780 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.i [2024-11-20 13:49:13,169 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:49:13,389 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:49:13,390 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.i [2024-11-20 13:49:13,404 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be9232e26/81b12806c27f4cd097f17e85c73cd418/FLAGdb0f57de6 [2024-11-20 13:49:13,419 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be9232e26/81b12806c27f4cd097f17e85c73cd418 [2024-11-20 13:49:13,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:49:13,423 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:49:13,423 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:49:13,424 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:49:13,428 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:49:13,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:49:13" (1/1) ... [2024-11-20 13:49:13,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45233593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:49:13, skipping insertion in model container [2024-11-20 13:49:13,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:49:13" (1/1) ... [2024-11-20 13:49:13,458 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:49:13,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:49:13,782 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:49:13,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:49:13,882 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:49:13,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:49:13 WrapperNode [2024-11-20 13:49:13,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:49:13,884 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:49:13,885 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:49:13,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:49:13,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:49:13" (1/1) ... [2024-11-20 13:49:13,903 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:49:13" (1/1) ... [2024-11-20 13:49:13,926 INFO L138 Inliner]: procedures = 174, calls = 45, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 174 [2024-11-20 13:49:13,928 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:49:13,928 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:49:13,928 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:49:13,928 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:49:13,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:49:13" (1/1) ... [2024-11-20 13:49:13,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:49:13" (1/1) ... [2024-11-20 13:49:13,942 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:49:13" (1/1) ... [2024-11-20 13:49:13,942 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:49:13" (1/1) ... [2024-11-20 13:49:13,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:49:13" (1/1) ... [2024-11-20 13:49:13,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:49:13" (1/1) ... [2024-11-20 13:49:13,952 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:49:13" (1/1) ... [2024-11-20 13:49:13,953 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:49:13" (1/1) ... [2024-11-20 13:49:13,955 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:49:13,956 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:49:13,956 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:49:13,956 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:49:13,957 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:49:13" (1/1) ... [2024-11-20 13:49:13,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:49:13,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:49:13,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 13:49:13,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 13:49:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:49:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:49:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:49:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:49:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 13:49:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-20 13:49:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-20 13:49:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 13:49:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:49:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:49:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:49:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:49:14,031 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:49:14,141 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:49:14,143 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:49:14,369 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:49:14,369 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:49:14,404 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:49:14,404 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-20 13:49:14,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:49:14 BoogieIcfgContainer [2024-11-20 13:49:14,405 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:49:14,406 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:49:14,406 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:49:14,409 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:49:14,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:49:13" (1/3) ... [2024-11-20 13:49:14,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d3e48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:49:14, skipping insertion in model container [2024-11-20 13:49:14,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:49:13" (2/3) ... [2024-11-20 13:49:14,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d3e48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:49:14, skipping insertion in model container [2024-11-20 13:49:14,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:49:14" (3/3) ... [2024-11-20 13:49:14,412 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_19-callback_racing.i [2024-11-20 13:49:14,425 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:49:14,425 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-20 13:49:14,425 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:49:14,479 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-20 13:49:14,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 181 transitions, 369 flow [2024-11-20 13:49:14,571 INFO L124 PetriNetUnfolderBase]: 27/291 cut-off events. [2024-11-20 13:49:14,572 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:49:14,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 291 events. 27/291 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 962 event pairs, 0 based on Foata normal form. 0/248 useless extension candidates. Maximal degree in co-relation 143. Up to 6 conditions per place. [2024-11-20 13:49:14,582 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 181 transitions, 369 flow [2024-11-20 13:49:14,590 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 168 places, 181 transitions, 369 flow [2024-11-20 13:49:14,602 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:49:14,608 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;@21bd75ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:49:14,608 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-20 13:49:14,617 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:49:14,617 INFO L124 PetriNetUnfolderBase]: 2/55 cut-off events. [2024-11-20 13:49:14,618 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:49:14,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:49:14,618 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] [2024-11-20 13:49:14,619 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:49:14,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:49:14,624 INFO L85 PathProgramCache]: Analyzing trace with hash -274697999, now seen corresponding path program 1 times [2024-11-20 13:49:14,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:49:14,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870116653] [2024-11-20 13:49:14,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:49:14,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:49:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:49:15,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:49:15,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:49:15,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870116653] [2024-11-20 13:49:15,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870116653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:49:15,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:49:15,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:49:15,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687174465] [2024-11-20 13:49:15,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:49:15,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:49:15,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:49:15,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:49:15,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:49:15,443 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 181 [2024-11-20 13:49:15,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 181 transitions, 369 flow. Second operand has 6 states, 6 states have (on average 138.5) internal successors, (831), 6 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:15,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:49:15,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 181 [2024-11-20 13:49:15,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:49:15,625 INFO L124 PetriNetUnfolderBase]: 93/755 cut-off events. [2024-11-20 13:49:15,626 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-20 13:49:15,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 969 conditions, 755 events. 93/755 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4186 event pairs, 33 based on Foata normal form. 101/800 useless extension candidates. Maximal degree in co-relation 798. Up to 154 conditions per place. [2024-11-20 13:49:15,653 INFO L140 encePairwiseOnDemand]: 162/181 looper letters, 40 selfloop transitions, 5 changer transitions 0/181 dead transitions. [2024-11-20 13:49:15,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 181 transitions, 459 flow [2024-11-20 13:49:15,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:49:15,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:49:15,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 897 transitions. [2024-11-20 13:49:15,672 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8259668508287292 [2024-11-20 13:49:15,673 INFO L175 Difference]: Start difference. First operand has 168 places, 181 transitions, 369 flow. Second operand 6 states and 897 transitions. [2024-11-20 13:49:15,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 181 transitions, 459 flow [2024-11-20 13:49:15,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 181 transitions, 459 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:49:15,679 INFO L231 Difference]: Finished difference. Result has 170 places, 165 transitions, 347 flow [2024-11-20 13:49:15,681 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=347, PETRI_PLACES=170, PETRI_TRANSITIONS=165} [2024-11-20 13:49:15,686 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, 2 predicate places. [2024-11-20 13:49:15,686 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 165 transitions, 347 flow [2024-11-20 13:49:15,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.5) internal successors, (831), 6 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:15,687 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:49:15,687 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] [2024-11-20 13:49:15,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:49:15,688 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:49:15,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:49:15,689 INFO L85 PathProgramCache]: Analyzing trace with hash -311166184, now seen corresponding path program 1 times [2024-11-20 13:49:15,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:49:15,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524829373] [2024-11-20 13:49:15,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:49:15,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:49:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:49:15,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:49:15,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:49:15,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524829373] [2024-11-20 13:49:15,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524829373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:49:15,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:49:15,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:49:15,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796293166] [2024-11-20 13:49:15,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:49:15,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:49:15,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:49:15,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:49:15,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:49:15,775 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 181 [2024-11-20 13:49:15,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 165 transitions, 347 flow. Second operand has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:15,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:49:15,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 181 [2024-11-20 13:49:15,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:49:15,881 INFO L124 PetriNetUnfolderBase]: 113/926 cut-off events. [2024-11-20 13:49:15,881 INFO L125 PetriNetUnfolderBase]: For 7/13 co-relation queries the response was YES. [2024-11-20 13:49:15,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1196 conditions, 926 events. 113/926 cut-off events. For 7/13 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4855 event pairs, 34 based on Foata normal form. 1/849 useless extension candidates. Maximal degree in co-relation 1029. Up to 137 conditions per place. [2024-11-20 13:49:15,886 INFO L140 encePairwiseOnDemand]: 172/181 looper letters, 30 selfloop transitions, 6 changer transitions 0/178 dead transitions. [2024-11-20 13:49:15,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 178 transitions, 448 flow [2024-11-20 13:49:15,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:49:15,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:49:15,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 471 transitions. [2024-11-20 13:49:15,887 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8674033149171271 [2024-11-20 13:49:15,887 INFO L175 Difference]: Start difference. First operand has 170 places, 165 transitions, 347 flow. Second operand 3 states and 471 transitions. [2024-11-20 13:49:15,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 178 transitions, 448 flow [2024-11-20 13:49:15,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 178 transitions, 438 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:49:15,893 INFO L231 Difference]: Finished difference. Result has 167 places, 167 transitions, 375 flow [2024-11-20 13:49:15,893 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=375, PETRI_PLACES=167, PETRI_TRANSITIONS=167} [2024-11-20 13:49:15,894 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -1 predicate places. [2024-11-20 13:49:15,894 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 167 transitions, 375 flow [2024-11-20 13:49:15,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:15,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:49:15,894 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] [2024-11-20 13:49:15,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:49:15,895 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:49:15,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:49:15,896 INFO L85 PathProgramCache]: Analyzing trace with hash 2001203335, now seen corresponding path program 1 times [2024-11-20 13:49:15,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:49:15,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852728041] [2024-11-20 13:49:15,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:49:15,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:49:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:49:15,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:49:15,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:49:15,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852728041] [2024-11-20 13:49:15,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852728041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:49:15,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:49:15,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:49:15,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225809555] [2024-11-20 13:49:15,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:49:15,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:49:15,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:49:15,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:49:15,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:49:15,960 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 181 [2024-11-20 13:49:15,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 167 transitions, 375 flow. Second operand has 3 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:15,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:49:15,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 181 [2024-11-20 13:49:15,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:49:16,062 INFO L124 PetriNetUnfolderBase]: 82/908 cut-off events. [2024-11-20 13:49:16,063 INFO L125 PetriNetUnfolderBase]: For 32/34 co-relation queries the response was YES. [2024-11-20 13:49:16,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1143 conditions, 908 events. 82/908 cut-off events. For 32/34 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4757 event pairs, 38 based on Foata normal form. 1/843 useless extension candidates. Maximal degree in co-relation 1041. Up to 146 conditions per place. [2024-11-20 13:49:16,067 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 20 selfloop transitions, 2 changer transitions 0/171 dead transitions. [2024-11-20 13:49:16,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 171 transitions, 427 flow [2024-11-20 13:49:16,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:49:16,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:49:16,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 470 transitions. [2024-11-20 13:49:16,069 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8655616942909761 [2024-11-20 13:49:16,070 INFO L175 Difference]: Start difference. First operand has 167 places, 167 transitions, 375 flow. Second operand 3 states and 470 transitions. [2024-11-20 13:49:16,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 171 transitions, 427 flow [2024-11-20 13:49:16,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 171 transitions, 415 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:49:16,075 INFO L231 Difference]: Finished difference. Result has 168 places, 167 transitions, 371 flow [2024-11-20 13:49:16,075 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=371, PETRI_PLACES=168, PETRI_TRANSITIONS=167} [2024-11-20 13:49:16,076 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, 0 predicate places. [2024-11-20 13:49:16,077 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 167 transitions, 371 flow [2024-11-20 13:49:16,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:16,077 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:49:16,078 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:49:16,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:49:16,078 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-20 13:49:16,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:49:16,079 INFO L85 PathProgramCache]: Analyzing trace with hash -964947795, now seen corresponding path program 1 times [2024-11-20 13:49:16,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:49:16,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953103659] [2024-11-20 13:49:16,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:49:16,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:49:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:49:16,108 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:49:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:49:16,151 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:49:16,152 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:49:16,153 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-20 13:49:16,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-20 13:49:16,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-20 13:49:16,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-20 13:49:16,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-20 13:49:16,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-20 13:49:16,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-20 13:49:16,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-20 13:49:16,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-20 13:49:16,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:49:16,159 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 13:49:16,163 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:49:16,163 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-20 13:49:16,192 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 13:49:16,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 197 places, 213 transitions, 442 flow [2024-11-20 13:49:16,245 INFO L124 PetriNetUnfolderBase]: 45/461 cut-off events. [2024-11-20 13:49:16,245 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-20 13:49:16,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 461 events. 45/461 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1835 event pairs, 0 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 293. Up to 9 conditions per place. [2024-11-20 13:49:16,248 INFO L82 GeneralOperation]: Start removeDead. Operand has 197 places, 213 transitions, 442 flow [2024-11-20 13:49:16,251 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 197 places, 213 transitions, 442 flow [2024-11-20 13:49:16,256 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:49:16,258 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;@21bd75ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:49:16,258 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-20 13:49:16,263 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:49:16,263 INFO L124 PetriNetUnfolderBase]: 2/55 cut-off events. [2024-11-20 13:49:16,264 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:49:16,264 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:49:16,264 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] [2024-11-20 13:49:16,264 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-20 13:49:16,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:49:16,265 INFO L85 PathProgramCache]: Analyzing trace with hash 834523153, now seen corresponding path program 1 times [2024-11-20 13:49:16,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:49:16,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289425189] [2024-11-20 13:49:16,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:49:16,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:49:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:49:16,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:49:16,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:49:16,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289425189] [2024-11-20 13:49:16,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289425189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:49:16,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:49:16,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:49:16,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603198688] [2024-11-20 13:49:16,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:49:16,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:49:16,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:49:16,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:49:16,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:49:16,627 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 213 [2024-11-20 13:49:16,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 213 transitions, 442 flow. Second operand has 6 states, 6 states have (on average 159.5) internal successors, (957), 6 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:16,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:49:16,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 213 [2024-11-20 13:49:16,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:49:17,133 INFO L124 PetriNetUnfolderBase]: 1001/4600 cut-off events. [2024-11-20 13:49:17,134 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-11-20 13:49:17,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6259 conditions, 4600 events. 1001/4600 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 43093 event pairs, 108 based on Foata normal form. 915/5182 useless extension candidates. Maximal degree in co-relation 1068. Up to 1202 conditions per place. [2024-11-20 13:49:17,153 INFO L140 encePairwiseOnDemand]: 190/213 looper letters, 62 selfloop transitions, 5 changer transitions 0/223 dead transitions. [2024-11-20 13:49:17,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 223 transitions, 596 flow [2024-11-20 13:49:17,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:49:17,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:49:17,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1065 transitions. [2024-11-20 13:49:17,156 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-11-20 13:49:17,156 INFO L175 Difference]: Start difference. First operand has 197 places, 213 transitions, 442 flow. Second operand 6 states and 1065 transitions. [2024-11-20 13:49:17,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 223 transitions, 596 flow [2024-11-20 13:49:17,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 223 transitions, 596 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:49:17,160 INFO L231 Difference]: Finished difference. Result has 197 places, 191 transitions, 408 flow [2024-11-20 13:49:17,161 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=408, PETRI_PLACES=197, PETRI_TRANSITIONS=191} [2024-11-20 13:49:17,161 INFO L277 CegarLoopForPetriNet]: 197 programPoint places, 0 predicate places. [2024-11-20 13:49:17,162 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 191 transitions, 408 flow [2024-11-20 13:49:17,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 159.5) internal successors, (957), 6 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:17,163 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:49:17,163 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] [2024-11-20 13:49:17,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:49:17,163 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-20 13:49:17,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:49:17,164 INFO L85 PathProgramCache]: Analyzing trace with hash -969738534, now seen corresponding path program 1 times [2024-11-20 13:49:17,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:49:17,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088475758] [2024-11-20 13:49:17,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:49:17,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:49:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:49:17,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:49:17,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:49:17,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088475758] [2024-11-20 13:49:17,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088475758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:49:17,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:49:17,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:49:17,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846920132] [2024-11-20 13:49:17,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:49:17,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:49:17,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:49:17,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:49:17,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:49:17,222 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 213 [2024-11-20 13:49:17,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 191 transitions, 408 flow. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:17,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:49:17,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 213 [2024-11-20 13:49:17,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:49:18,058 INFO L124 PetriNetUnfolderBase]: 2104/8794 cut-off events. [2024-11-20 13:49:18,059 INFO L125 PetriNetUnfolderBase]: For 261/449 co-relation queries the response was YES. [2024-11-20 13:49:18,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12323 conditions, 8794 events. 2104/8794 cut-off events. For 261/449 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 87246 event pairs, 758 based on Foata normal form. 7/7967 useless extension candidates. Maximal degree in co-relation 10535. Up to 2127 conditions per place. [2024-11-20 13:49:18,140 INFO L140 encePairwiseOnDemand]: 201/213 looper letters, 45 selfloop transitions, 8 changer transitions 0/212 dead transitions. [2024-11-20 13:49:18,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 212 transitions, 567 flow [2024-11-20 13:49:18,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:49:18,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:49:18,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 543 transitions. [2024-11-20 13:49:18,142 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8497652582159625 [2024-11-20 13:49:18,142 INFO L175 Difference]: Start difference. First operand has 197 places, 191 transitions, 408 flow. Second operand 3 states and 543 transitions. [2024-11-20 13:49:18,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 212 transitions, 567 flow [2024-11-20 13:49:18,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 212 transitions, 557 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:49:18,146 INFO L231 Difference]: Finished difference. Result has 194 places, 195 transitions, 454 flow [2024-11-20 13:49:18,146 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=454, PETRI_PLACES=194, PETRI_TRANSITIONS=195} [2024-11-20 13:49:18,147 INFO L277 CegarLoopForPetriNet]: 197 programPoint places, -3 predicate places. [2024-11-20 13:49:18,147 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 195 transitions, 454 flow [2024-11-20 13:49:18,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:18,147 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:49:18,147 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] [2024-11-20 13:49:18,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:49:18,148 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-20 13:49:18,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:49:18,148 INFO L85 PathProgramCache]: Analyzing trace with hash 597928487, now seen corresponding path program 1 times [2024-11-20 13:49:18,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:49:18,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823956778] [2024-11-20 13:49:18,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:49:18,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:49:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:49:18,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:49:18,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:49:18,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823956778] [2024-11-20 13:49:18,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823956778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:49:18,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:49:18,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:49:18,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104941050] [2024-11-20 13:49:18,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:49:18,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:49:18,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:49:18,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:49:18,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:49:18,202 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 213 [2024-11-20 13:49:18,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 195 transitions, 454 flow. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:18,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:49:18,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 213 [2024-11-20 13:49:18,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:49:18,850 INFO L124 PetriNetUnfolderBase]: 1362/7534 cut-off events. [2024-11-20 13:49:18,850 INFO L125 PetriNetUnfolderBase]: For 419/500 co-relation queries the response was YES. [2024-11-20 13:49:18,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10348 conditions, 7534 events. 1362/7534 cut-off events. For 419/500 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 76545 event pairs, 874 based on Foata normal form. 1/6886 useless extension candidates. Maximal degree in co-relation 6779. Up to 1911 conditions per place. [2024-11-20 13:49:18,886 INFO L140 encePairwiseOnDemand]: 210/213 looper letters, 27 selfloop transitions, 2 changer transitions 0/200 dead transitions. [2024-11-20 13:49:18,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 200 transitions, 522 flow [2024-11-20 13:49:18,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:49:18,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:49:18,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 540 transitions. [2024-11-20 13:49:18,889 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8450704225352113 [2024-11-20 13:49:18,889 INFO L175 Difference]: Start difference. First operand has 194 places, 195 transitions, 454 flow. Second operand 3 states and 540 transitions. [2024-11-20 13:49:18,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 200 transitions, 522 flow [2024-11-20 13:49:18,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 200 transitions, 506 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:49:18,893 INFO L231 Difference]: Finished difference. Result has 195 places, 196 transitions, 450 flow [2024-11-20 13:49:18,894 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=450, PETRI_PLACES=195, PETRI_TRANSITIONS=196} [2024-11-20 13:49:18,894 INFO L277 CegarLoopForPetriNet]: 197 programPoint places, -2 predicate places. [2024-11-20 13:49:18,894 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 196 transitions, 450 flow [2024-11-20 13:49:18,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:18,895 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:49:18,895 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:49:18,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:49:18,895 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-20 13:49:18,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:49:18,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1915331391, now seen corresponding path program 1 times [2024-11-20 13:49:18,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:49:18,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465695897] [2024-11-20 13:49:18,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:49:18,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:49:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:49:18,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:49:18,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:49:18,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465695897] [2024-11-20 13:49:18,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465695897] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:49:18,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984733460] [2024-11-20 13:49:18,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:49:18,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:49:18,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:49:18,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:49:18,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 13:49:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:49:19,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 13:49:19,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:49:19,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 13:49:19,082 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:49:19,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984733460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:49:19,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:49:19,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-20 13:49:19,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753445042] [2024-11-20 13:49:19,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:49:19,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:49:19,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:49:19,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:49:19,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:49:19,096 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 213 [2024-11-20 13:49:19,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 196 transitions, 450 flow. Second operand has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:19,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:49:19,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 213 [2024-11-20 13:49:19,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:49:20,239 INFO L124 PetriNetUnfolderBase]: 2343/13191 cut-off events. [2024-11-20 13:49:20,239 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2024-11-20 13:49:20,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17693 conditions, 13191 events. 2343/13191 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 154880 event pairs, 1363 based on Foata normal form. 36/12104 useless extension candidates. Maximal degree in co-relation 17635. Up to 2189 conditions per place. [2024-11-20 13:49:20,304 INFO L140 encePairwiseOnDemand]: 210/213 looper letters, 37 selfloop transitions, 2 changer transitions 0/211 dead transitions. [2024-11-20 13:49:20,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 211 transitions, 558 flow [2024-11-20 13:49:20,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:49:20,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:49:20,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 550 transitions. [2024-11-20 13:49:20,306 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8607198748043818 [2024-11-20 13:49:20,306 INFO L175 Difference]: Start difference. First operand has 195 places, 196 transitions, 450 flow. Second operand 3 states and 550 transitions. [2024-11-20 13:49:20,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 211 transitions, 558 flow [2024-11-20 13:49:20,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 211 transitions, 556 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:49:20,310 INFO L231 Difference]: Finished difference. Result has 197 places, 197 transitions, 460 flow [2024-11-20 13:49:20,310 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=460, PETRI_PLACES=197, PETRI_TRANSITIONS=197} [2024-11-20 13:49:20,311 INFO L277 CegarLoopForPetriNet]: 197 programPoint places, 0 predicate places. [2024-11-20 13:49:20,311 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 197 transitions, 460 flow [2024-11-20 13:49:20,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:20,311 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:49:20,311 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:49:20,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-20 13:49:20,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:49:20,518 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-20 13:49:20,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:49:20,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1193848283, now seen corresponding path program 1 times [2024-11-20 13:49:20,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:49:20,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030046328] [2024-11-20 13:49:20,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:49:20,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:49:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:49:20,537 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:49:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:49:20,555 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:49:20,555 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:49:20,555 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-20 13:49:20,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-11-20 13:49:20,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-11-20 13:49:20,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-11-20 13:49:20,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-11-20 13:49:20,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-11-20 13:49:20,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2024-11-20 13:49:20,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-11-20 13:49:20,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-11-20 13:49:20,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-11-20 13:49:20,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 13:49:20,561 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-20 13:49:20,561 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:49:20,561 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-20 13:49:20,591 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-20 13:49:20,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 226 places, 245 transitions, 517 flow [2024-11-20 13:49:20,731 INFO L124 PetriNetUnfolderBase]: 68/676 cut-off events. [2024-11-20 13:49:20,732 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-20 13:49:20,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 701 conditions, 676 events. 68/676 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2933 event pairs, 1 based on Foata normal form. 0/573 useless extension candidates. Maximal degree in co-relation 469. Up to 16 conditions per place. [2024-11-20 13:49:20,735 INFO L82 GeneralOperation]: Start removeDead. Operand has 226 places, 245 transitions, 517 flow [2024-11-20 13:49:20,738 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 226 places, 245 transitions, 517 flow [2024-11-20 13:49:20,739 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:49:20,739 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;@21bd75ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:49:20,740 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-20 13:49:20,742 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:49:20,742 INFO L124 PetriNetUnfolderBase]: 2/55 cut-off events. [2024-11-20 13:49:20,742 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:49:20,742 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:49:20,742 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] [2024-11-20 13:49:20,743 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-20 13:49:20,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:49:20,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1398176975, now seen corresponding path program 1 times [2024-11-20 13:49:20,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:49:20,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952470531] [2024-11-20 13:49:20,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:49:20,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:49:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:49:20,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:49:20,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:49:20,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952470531] [2024-11-20 13:49:20,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952470531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:49:20,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:49:20,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:49:20,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294929826] [2024-11-20 13:49:20,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:49:20,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:49:20,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:49:20,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:49:20,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:49:21,004 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 245 [2024-11-20 13:49:21,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 245 transitions, 517 flow. Second operand has 6 states, 6 states have (on average 180.5) internal successors, (1083), 6 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:21,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:49:21,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 245 [2024-11-20 13:49:21,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:49:23,815 INFO L124 PetriNetUnfolderBase]: 8120/26912 cut-off events. [2024-11-20 13:49:23,816 INFO L125 PetriNetUnfolderBase]: For 557/557 co-relation queries the response was YES. [2024-11-20 13:49:23,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38647 conditions, 26912 events. 8120/26912 cut-off events. For 557/557 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 324086 event pairs, 1746 based on Foata normal form. 6819/31993 useless extension candidates. Maximal degree in co-relation 6247. Up to 8631 conditions per place. [2024-11-20 13:49:23,981 INFO L140 encePairwiseOnDemand]: 218/245 looper letters, 84 selfloop transitions, 5 changer transitions 0/265 dead transitions. [2024-11-20 13:49:23,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 265 transitions, 735 flow [2024-11-20 13:49:23,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:49:23,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:49:23,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1233 transitions. [2024-11-20 13:49:23,984 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8387755102040816 [2024-11-20 13:49:23,984 INFO L175 Difference]: Start difference. First operand has 226 places, 245 transitions, 517 flow. Second operand 6 states and 1233 transitions. [2024-11-20 13:49:23,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 265 transitions, 735 flow [2024-11-20 13:49:23,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 265 transitions, 735 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:49:23,988 INFO L231 Difference]: Finished difference. Result has 224 places, 217 transitions, 471 flow [2024-11-20 13:49:23,988 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=471, PETRI_PLACES=224, PETRI_TRANSITIONS=217} [2024-11-20 13:49:23,989 INFO L277 CegarLoopForPetriNet]: 226 programPoint places, -2 predicate places. [2024-11-20 13:49:23,989 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 217 transitions, 471 flow [2024-11-20 13:49:23,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.5) internal successors, (1083), 6 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:23,990 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:49:23,990 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] [2024-11-20 13:49:23,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 13:49:23,990 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-20 13:49:23,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:49:23,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1061728344, now seen corresponding path program 1 times [2024-11-20 13:49:23,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:49:23,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912479309] [2024-11-20 13:49:23,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:49:23,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:49:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:49:24,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:49:24,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:49:24,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912479309] [2024-11-20 13:49:24,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912479309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:49:24,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:49:24,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:49:24,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697351715] [2024-11-20 13:49:24,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:49:24,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:49:24,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:49:24,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:49:24,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:49:24,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 245 [2024-11-20 13:49:24,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 217 transitions, 471 flow. Second operand has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:24,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:49:24,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 245 [2024-11-20 13:49:24,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:49:32,071 INFO L124 PetriNetUnfolderBase]: 27267/82221 cut-off events. [2024-11-20 13:49:32,071 INFO L125 PetriNetUnfolderBase]: For 2339/4240 co-relation queries the response was YES. [2024-11-20 13:49:32,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121859 conditions, 82221 events. 27267/82221 cut-off events. For 2339/4240 co-relation queries the response was YES. Maximal size of possible extension queue 1773. Compared 1093440 event pairs, 10774 based on Foata normal form. 32/74548 useless extension candidates. Maximal degree in co-relation 109328. Up to 25188 conditions per place. [2024-11-20 13:49:32,695 INFO L140 encePairwiseOnDemand]: 230/245 looper letters, 60 selfloop transitions, 10 changer transitions 0/246 dead transitions. [2024-11-20 13:49:32,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 246 transitions, 690 flow [2024-11-20 13:49:32,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:49:32,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:49:32,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 615 transitions. [2024-11-20 13:49:32,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8367346938775511 [2024-11-20 13:49:32,697 INFO L175 Difference]: Start difference. First operand has 224 places, 217 transitions, 471 flow. Second operand 3 states and 615 transitions. [2024-11-20 13:49:32,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 246 transitions, 690 flow [2024-11-20 13:49:32,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 246 transitions, 680 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:49:32,705 INFO L231 Difference]: Finished difference. Result has 221 places, 223 transitions, 535 flow [2024-11-20 13:49:32,705 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=535, PETRI_PLACES=221, PETRI_TRANSITIONS=223} [2024-11-20 13:49:32,706 INFO L277 CegarLoopForPetriNet]: 226 programPoint places, -5 predicate places. [2024-11-20 13:49:32,706 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 223 transitions, 535 flow [2024-11-20 13:49:32,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:32,706 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:49:32,706 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] [2024-11-20 13:49:32,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 13:49:32,707 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-20 13:49:32,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:49:32,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1600927801, now seen corresponding path program 1 times [2024-11-20 13:49:32,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:49:32,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138448842] [2024-11-20 13:49:32,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:49:32,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:49:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:49:32,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:49:32,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:49:32,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138448842] [2024-11-20 13:49:32,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138448842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:49:32,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:49:32,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:49:32,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952703169] [2024-11-20 13:49:32,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:49:32,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:49:32,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:49:32,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:49:32,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:49:32,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 245 [2024-11-20 13:49:32,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 223 transitions, 535 flow. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:32,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:49:32,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 245 [2024-11-20 13:49:32,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:49:40,648 INFO L124 PetriNetUnfolderBase]: 16710/68707 cut-off events. [2024-11-20 13:49:40,649 INFO L125 PetriNetUnfolderBase]: For 4051/5311 co-relation queries the response was YES. [2024-11-20 13:49:40,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98145 conditions, 68707 events. 16710/68707 cut-off events. For 4051/5311 co-relation queries the response was YES. Maximal size of possible extension queue 1361. Compared 986987 event pairs, 11681 based on Foata normal form. 1/62403 useless extension candidates. Maximal degree in co-relation 64880. Up to 20086 conditions per place. [2024-11-20 13:49:41,088 INFO L140 encePairwiseOnDemand]: 242/245 looper letters, 33 selfloop transitions, 2 changer transitions 0/228 dead transitions. [2024-11-20 13:49:41,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 228 transitions, 615 flow [2024-11-20 13:49:41,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:49:41,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:49:41,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 609 transitions. [2024-11-20 13:49:41,091 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8285714285714286 [2024-11-20 13:49:41,091 INFO L175 Difference]: Start difference. First operand has 221 places, 223 transitions, 535 flow. Second operand 3 states and 609 transitions. [2024-11-20 13:49:41,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 228 transitions, 615 flow [2024-11-20 13:49:41,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 228 transitions, 595 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:49:41,100 INFO L231 Difference]: Finished difference. Result has 222 places, 224 transitions, 527 flow [2024-11-20 13:49:41,100 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=527, PETRI_PLACES=222, PETRI_TRANSITIONS=224} [2024-11-20 13:49:41,100 INFO L277 CegarLoopForPetriNet]: 226 programPoint places, -4 predicate places. [2024-11-20 13:49:41,101 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 224 transitions, 527 flow [2024-11-20 13:49:41,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:41,101 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:49:41,101 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:49:41,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 13:49:41,101 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-20 13:49:41,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:49:41,102 INFO L85 PathProgramCache]: Analyzing trace with hash 566792035, now seen corresponding path program 1 times [2024-11-20 13:49:41,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:49:41,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309575255] [2024-11-20 13:49:41,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:49:41,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:49:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:49:41,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:49:41,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:49:41,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309575255] [2024-11-20 13:49:41,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309575255] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:49:41,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708639764] [2024-11-20 13:49:41,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:49:41,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:49:41,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:49:41,154 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:49:41,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 13:49:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:49:41,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 13:49:41,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:49:41,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 13:49:41,232 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:49:41,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708639764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:49:41,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:49:41,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-20 13:49:41,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816005731] [2024-11-20 13:49:41,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:49:41,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:49:41,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:49:41,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:49:41,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:49:41,239 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 245 [2024-11-20 13:49:41,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 224 transitions, 527 flow. Second operand has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:41,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:49:41,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 245 [2024-11-20 13:49:41,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:49:52,744 INFO L124 PetriNetUnfolderBase]: 28232/111669 cut-off events. [2024-11-20 13:49:52,745 INFO L125 PetriNetUnfolderBase]: For 1400/1400 co-relation queries the response was YES. [2024-11-20 13:49:53,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157869 conditions, 111669 events. 28232/111669 cut-off events. For 1400/1400 co-relation queries the response was YES. Maximal size of possible extension queue 2383. Compared 1723443 event pairs, 17335 based on Foata normal form. 247/102323 useless extension candidates. Maximal degree in co-relation 157810. Up to 22843 conditions per place. [2024-11-20 13:49:54,107 INFO L140 encePairwiseOnDemand]: 242/245 looper letters, 47 selfloop transitions, 2 changer transitions 0/243 dead transitions. [2024-11-20 13:49:54,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 243 transitions, 663 flow [2024-11-20 13:49:54,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:49:54,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:49:54,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 623 transitions. [2024-11-20 13:49:54,109 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8476190476190476 [2024-11-20 13:49:54,109 INFO L175 Difference]: Start difference. First operand has 222 places, 224 transitions, 527 flow. Second operand 3 states and 623 transitions. [2024-11-20 13:49:54,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 243 transitions, 663 flow [2024-11-20 13:49:54,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 243 transitions, 661 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:49:54,118 INFO L231 Difference]: Finished difference. Result has 224 places, 225 transitions, 537 flow [2024-11-20 13:49:54,118 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=525, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=537, PETRI_PLACES=224, PETRI_TRANSITIONS=225} [2024-11-20 13:49:54,119 INFO L277 CegarLoopForPetriNet]: 226 programPoint places, -2 predicate places. [2024-11-20 13:49:54,119 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 225 transitions, 537 flow [2024-11-20 13:49:54,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:54,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:49:54,120 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:49:54,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 13:49:54,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-20 13:49:54,324 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-20 13:49:54,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:49:54,325 INFO L85 PathProgramCache]: Analyzing trace with hash 827485695, now seen corresponding path program 1 times [2024-11-20 13:49:54,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:49:54,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038788974] [2024-11-20 13:49:54,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:49:54,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:49:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:49:54,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 13:49:54,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:49:54,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038788974] [2024-11-20 13:49:54,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038788974] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:49:54,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711517611] [2024-11-20 13:49:54,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:49:54,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:49:54,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:49:54,409 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:49:54,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 13:49:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:49:54,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 13:49:54,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:49:54,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 13:49:54,562 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:49:54,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 13:49:54,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711517611] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:49:54,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:49:54,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-20 13:49:54,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173381796] [2024-11-20 13:49:54,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:49:54,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 13:49:54,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:49:54,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 13:49:54,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-20 13:49:54,686 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 245 [2024-11-20 13:49:54,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 225 transitions, 537 flow. Second operand has 10 states, 10 states have (on average 190.1) internal successors, (1901), 10 states have internal predecessors, (1901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:49:54,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:49:54,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 245 [2024-11-20 13:49:54,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand