./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/weaver/parallel-ticket-6.wvr.c --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/weaver/parallel-ticket-6.wvr.c -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 0f41c28130c65bb66e6565b71877e71077746007ac43c6aef3ce3b863878a53a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:54:43,890 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:54:43,969 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:54:43,975 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:54:43,978 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:54:44,006 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:54:44,006 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:54:44,007 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:54:44,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:54:44,009 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:54:44,010 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:54:44,010 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:54:44,010 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:54:44,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:54:44,011 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:54:44,012 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:54:44,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:54:44,013 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:54:44,013 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:54:44,014 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:54:44,016 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:54:44,016 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:54:44,017 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:54:44,017 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:54:44,017 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:54:44,017 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:54:44,017 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:54:44,018 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:54:44,018 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:54:44,018 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:54:44,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:54:44,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:54:44,019 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:54:44,019 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:54:44,019 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:54:44,019 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:54:44,019 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:54:44,020 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:54:44,020 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:54:44,020 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:54:44,022 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:54:44,022 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f41c28130c65bb66e6565b71877e71077746007ac43c6aef3ce3b863878a53a [2024-11-20 13:54:44,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:54:44,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:54:44,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:54:44,304 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:54:44,304 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:54:44,305 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c [2024-11-20 13:54:45,788 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:54:45,964 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:54:45,965 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c [2024-11-20 13:54:45,976 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/630c4dc08/8abedbaa7e0a46e995f699af84d6aeb1/FLAGc1dcff2af [2024-11-20 13:54:45,996 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/630c4dc08/8abedbaa7e0a46e995f699af84d6aeb1 [2024-11-20 13:54:45,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:54:46,001 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:54:46,003 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:54:46,004 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:54:46,014 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:54:46,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:54:45" (1/1) ... [2024-11-20 13:54:46,016 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79fa8a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:46, skipping insertion in model container [2024-11-20 13:54:46,016 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:54:45" (1/1) ... [2024-11-20 13:54:46,040 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:54:46,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:54:46,302 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:54:46,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:54:46,350 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:54:46,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:46 WrapperNode [2024-11-20 13:54:46,351 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:54:46,352 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:54:46,352 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:54:46,352 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:54:46,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:46" (1/1) ... [2024-11-20 13:54:46,368 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:46" (1/1) ... [2024-11-20 13:54:46,399 INFO L138 Inliner]: procedures = 22, calls = 21, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 298 [2024-11-20 13:54:46,399 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:54:46,400 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:54:46,400 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:54:46,401 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:54:46,410 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:46" (1/1) ... [2024-11-20 13:54:46,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:46" (1/1) ... [2024-11-20 13:54:46,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:46" (1/1) ... [2024-11-20 13:54:46,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:46" (1/1) ... [2024-11-20 13:54:46,420 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:46" (1/1) ... [2024-11-20 13:54:46,423 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:46" (1/1) ... [2024-11-20 13:54:46,425 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:46" (1/1) ... [2024-11-20 13:54:46,427 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:46" (1/1) ... [2024-11-20 13:54:46,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:54:46,431 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:54:46,431 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:54:46,431 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:54:46,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:46" (1/1) ... [2024-11-20 13:54:46,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:54:46,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:54:46,484 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 13:54:46,487 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 13:54:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:54:46,540 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 13:54:46,540 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 13:54:46,540 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 13:54:46,541 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 13:54:46,541 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-20 13:54:46,541 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-20 13:54:46,541 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-20 13:54:46,542 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-20 13:54:46,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:54:46,542 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-20 13:54:46,542 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-20 13:54:46,542 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-20 13:54:46,542 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-20 13:54:46,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:54:46,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:54:46,546 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 13:54:46,682 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:54:46,684 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:54:47,060 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:54:47,060 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:54:47,098 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:54:47,098 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 13:54:47,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:54:47 BoogieIcfgContainer [2024-11-20 13:54:47,098 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:54:47,103 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:54:47,103 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:54:47,107 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:54:47,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:54:45" (1/3) ... [2024-11-20 13:54:47,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f142ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:54:47, skipping insertion in model container [2024-11-20 13:54:47,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:46" (2/3) ... [2024-11-20 13:54:47,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f142ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:54:47, skipping insertion in model container [2024-11-20 13:54:47,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:54:47" (3/3) ... [2024-11-20 13:54:47,110 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-6.wvr.c [2024-11-20 13:54:47,127 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:54:47,127 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-20 13:54:47,128 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:54:47,258 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-11-20 13:54:47,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 333 places, 327 transitions, 696 flow [2024-11-20 13:54:47,419 INFO L124 PetriNetUnfolderBase]: 13/321 cut-off events. [2024-11-20 13:54:47,420 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-20 13:54:47,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 321 events. 13/321 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 590 event pairs, 0 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 279. Up to 2 conditions per place. [2024-11-20 13:54:47,430 INFO L82 GeneralOperation]: Start removeDead. Operand has 333 places, 327 transitions, 696 flow [2024-11-20 13:54:47,438 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 311 places, 304 transitions, 641 flow [2024-11-20 13:54:47,448 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:54:47,455 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;@22e0c344, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:54:47,455 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-20 13:54:47,461 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:54:47,461 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2024-11-20 13:54:47,461 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:54:47,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:47,462 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] [2024-11-20 13:54:47,462 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:54:47,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:47,467 INFO L85 PathProgramCache]: Analyzing trace with hash 608831980, now seen corresponding path program 1 times [2024-11-20 13:54:47,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:47,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327966863] [2024-11-20 13:54:47,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:47,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:47,703 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 13:54:47,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:47,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327966863] [2024-11-20 13:54:47,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327966863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:47,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:47,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:47,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44856092] [2024-11-20 13:54:47,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:47,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:47,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:47,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:47,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:47,774 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 327 [2024-11-20 13:54:47,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 304 transitions, 641 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 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 13:54:47,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:47,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 327 [2024-11-20 13:54:47,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:54,677 INFO L124 PetriNetUnfolderBase]: 7855/33572 cut-off events. [2024-11-20 13:54:54,678 INFO L125 PetriNetUnfolderBase]: For 1695/1695 co-relation queries the response was YES. [2024-11-20 13:54:55,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44149 conditions, 33572 events. 7855/33572 cut-off events. For 1695/1695 co-relation queries the response was YES. Maximal size of possible extension queue 989. Compared 452288 event pairs, 6806 based on Foata normal form. 2909/31360 useless extension candidates. Maximal degree in co-relation 43186. Up to 8993 conditions per place. [2024-11-20 13:54:55,487 INFO L140 encePairwiseOnDemand]: 317/327 looper letters, 28 selfloop transitions, 2 changer transitions 1/296 dead transitions. [2024-11-20 13:54:55,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 296 transitions, 685 flow [2024-11-20 13:54:55,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:55,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:55,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 893 transitions. [2024-11-20 13:54:55,509 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.910295616717635 [2024-11-20 13:54:55,511 INFO L175 Difference]: Start difference. First operand has 311 places, 304 transitions, 641 flow. Second operand 3 states and 893 transitions. [2024-11-20 13:54:55,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 296 transitions, 685 flow [2024-11-20 13:54:55,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 296 transitions, 664 flow, removed 0 selfloop flow, removed 11 redundant places. [2024-11-20 13:54:55,537 INFO L231 Difference]: Finished difference. Result has 301 places, 295 transitions, 606 flow [2024-11-20 13:54:55,541 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=606, PETRI_PLACES=301, PETRI_TRANSITIONS=295} [2024-11-20 13:54:55,544 INFO L277 CegarLoopForPetriNet]: 311 programPoint places, -10 predicate places. [2024-11-20 13:54:55,545 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 295 transitions, 606 flow [2024-11-20 13:54:55,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 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 13:54:55,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:55,546 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] [2024-11-20 13:54:55,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:54:55,547 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:54:55,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:55,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1015340394, now seen corresponding path program 1 times [2024-11-20 13:54:55,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:55,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65377334] [2024-11-20 13:54:55,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:55,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:55,631 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 13:54:55,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:55,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65377334] [2024-11-20 13:54:55,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65377334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:55,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:55,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:55,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420995558] [2024-11-20 13:54:55,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:55,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:55,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:55,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:55,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:55,657 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 327 [2024-11-20 13:54:55,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 295 transitions, 606 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 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 13:54:55,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:55,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 327 [2024-11-20 13:54:55,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:55:00,880 INFO L124 PetriNetUnfolderBase]: 8501/35560 cut-off events. [2024-11-20 13:55:00,880 INFO L125 PetriNetUnfolderBase]: For 525/525 co-relation queries the response was YES. [2024-11-20 13:55:01,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46320 conditions, 35560 events. 8501/35560 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 999. Compared 481935 event pairs, 7398 based on Foata normal form. 0/30126 useless extension candidates. Maximal degree in co-relation 46282. Up to 9745 conditions per place. [2024-11-20 13:55:01,319 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 28 selfloop transitions, 2 changer transitions 0/294 dead transitions. [2024-11-20 13:55:01,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 294 transitions, 664 flow [2024-11-20 13:55:01,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:55:01,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:55:01,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 886 transitions. [2024-11-20 13:55:01,324 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9031600407747197 [2024-11-20 13:55:01,324 INFO L175 Difference]: Start difference. First operand has 301 places, 295 transitions, 606 flow. Second operand 3 states and 886 transitions. [2024-11-20 13:55:01,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 294 transitions, 664 flow [2024-11-20 13:55:01,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 294 transitions, 660 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:55:01,331 INFO L231 Difference]: Finished difference. Result has 299 places, 294 transitions, 604 flow [2024-11-20 13:55:01,332 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=604, PETRI_PLACES=299, PETRI_TRANSITIONS=294} [2024-11-20 13:55:01,335 INFO L277 CegarLoopForPetriNet]: 311 programPoint places, -12 predicate places. [2024-11-20 13:55:01,335 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 294 transitions, 604 flow [2024-11-20 13:55:01,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 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 13:55:01,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:55:01,336 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] [2024-11-20 13:55:01,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:55:01,337 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:55:01,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:55:01,339 INFO L85 PathProgramCache]: Analyzing trace with hash -157440509, now seen corresponding path program 1 times [2024-11-20 13:55:01,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:55:01,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229970818] [2024-11-20 13:55:01,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:55:01,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:55:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:55:01,396 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 13:55:01,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:55:01,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229970818] [2024-11-20 13:55:01,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229970818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:55:01,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:55:01,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:55:01,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792332033] [2024-11-20 13:55:01,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:55:01,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:55:01,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:55:01,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:55:01,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:55:01,420 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 327 [2024-11-20 13:55:01,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 294 transitions, 604 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 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 13:55:01,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:55:01,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 327 [2024-11-20 13:55:01,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:55:06,021 INFO L124 PetriNetUnfolderBase]: 8623/34961 cut-off events. [2024-11-20 13:55:06,022 INFO L125 PetriNetUnfolderBase]: For 579/579 co-relation queries the response was YES. [2024-11-20 13:55:06,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45915 conditions, 34961 events. 8623/34961 cut-off events. For 579/579 co-relation queries the response was YES. Maximal size of possible extension queue 969. Compared 469021 event pairs, 7550 based on Foata normal form. 0/29548 useless extension candidates. Maximal degree in co-relation 45869. Up to 9945 conditions per place. [2024-11-20 13:55:06,464 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 28 selfloop transitions, 2 changer transitions 0/293 dead transitions. [2024-11-20 13:55:06,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 293 transitions, 662 flow [2024-11-20 13:55:06,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:55:06,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:55:06,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 886 transitions. [2024-11-20 13:55:06,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9031600407747197 [2024-11-20 13:55:06,468 INFO L175 Difference]: Start difference. First operand has 299 places, 294 transitions, 604 flow. Second operand 3 states and 886 transitions. [2024-11-20 13:55:06,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 293 transitions, 662 flow [2024-11-20 13:55:06,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 293 transitions, 658 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:55:06,478 INFO L231 Difference]: Finished difference. Result has 298 places, 293 transitions, 602 flow [2024-11-20 13:55:06,480 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=602, PETRI_PLACES=298, PETRI_TRANSITIONS=293} [2024-11-20 13:55:06,481 INFO L277 CegarLoopForPetriNet]: 311 programPoint places, -13 predicate places. [2024-11-20 13:55:06,482 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 293 transitions, 602 flow [2024-11-20 13:55:06,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 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 13:55:06,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:55:06,483 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] [2024-11-20 13:55:06,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:55:06,483 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:55:06,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:55:06,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1133754814, now seen corresponding path program 1 times [2024-11-20 13:55:06,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:55:06,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385701653] [2024-11-20 13:55:06,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:55:06,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:55:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:55:06,545 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 13:55:06,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:55:06,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385701653] [2024-11-20 13:55:06,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385701653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:55:06,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:55:06,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:55:06,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666873712] [2024-11-20 13:55:06,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:55:06,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:55:06,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:55:06,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:55:06,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:55:06,572 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 327 [2024-11-20 13:55:06,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 293 transitions, 602 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 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 13:55:06,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:55:06,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 327 [2024-11-20 13:55:06,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:55:11,057 INFO L124 PetriNetUnfolderBase]: 8515/32260 cut-off events. [2024-11-20 13:55:11,058 INFO L125 PetriNetUnfolderBase]: For 597/597 co-relation queries the response was YES. [2024-11-20 13:55:11,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43196 conditions, 32260 events. 8515/32260 cut-off events. For 597/597 co-relation queries the response was YES. Maximal size of possible extension queue 917. Compared 418837 event pairs, 7550 based on Foata normal form. 0/27159 useless extension candidates. Maximal degree in co-relation 43142. Up to 9945 conditions per place. [2024-11-20 13:55:11,402 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 28 selfloop transitions, 2 changer transitions 0/292 dead transitions. [2024-11-20 13:55:11,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 292 transitions, 660 flow [2024-11-20 13:55:11,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:55:11,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:55:11,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 886 transitions. [2024-11-20 13:55:11,405 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9031600407747197 [2024-11-20 13:55:11,405 INFO L175 Difference]: Start difference. First operand has 298 places, 293 transitions, 602 flow. Second operand 3 states and 886 transitions. [2024-11-20 13:55:11,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 292 transitions, 660 flow [2024-11-20 13:55:11,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 292 transitions, 656 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:55:11,409 INFO L231 Difference]: Finished difference. Result has 297 places, 292 transitions, 600 flow [2024-11-20 13:55:11,410 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=600, PETRI_PLACES=297, PETRI_TRANSITIONS=292} [2024-11-20 13:55:11,411 INFO L277 CegarLoopForPetriNet]: 311 programPoint places, -14 predicate places. [2024-11-20 13:55:11,411 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 292 transitions, 600 flow [2024-11-20 13:55:11,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 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 13:55:11,412 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:55:11,412 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] [2024-11-20 13:55:11,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:55:11,412 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:55:11,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:55:11,413 INFO L85 PathProgramCache]: Analyzing trace with hash -2019753792, now seen corresponding path program 1 times [2024-11-20 13:55:11,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:55:11,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513872674] [2024-11-20 13:55:11,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:55:11,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:55:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:55:11,454 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 13:55:11,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:55:11,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513872674] [2024-11-20 13:55:11,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513872674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:55:11,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:55:11,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:55:11,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710107617] [2024-11-20 13:55:11,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:55:11,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:55:11,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:55:11,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:55:11,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:55:11,473 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 327 [2024-11-20 13:55:11,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 292 transitions, 600 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 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 13:55:11,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:55:11,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 327 [2024-11-20 13:55:11,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:55:15,334 INFO L124 PetriNetUnfolderBase]: 8177/27457 cut-off events. [2024-11-20 13:55:15,334 INFO L125 PetriNetUnfolderBase]: For 603/603 co-relation queries the response was YES. [2024-11-20 13:55:15,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38139 conditions, 27457 events. 8177/27457 cut-off events. For 603/603 co-relation queries the response was YES. Maximal size of possible extension queue 874. Compared 335941 event pairs, 7398 based on Foata normal form. 0/23073 useless extension candidates. Maximal degree in co-relation 38077. Up to 9745 conditions per place. [2024-11-20 13:55:15,590 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 28 selfloop transitions, 2 changer transitions 0/291 dead transitions. [2024-11-20 13:55:15,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 291 transitions, 658 flow [2024-11-20 13:55:15,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:55:15,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:55:15,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 886 transitions. [2024-11-20 13:55:15,592 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9031600407747197 [2024-11-20 13:55:15,592 INFO L175 Difference]: Start difference. First operand has 297 places, 292 transitions, 600 flow. Second operand 3 states and 886 transitions. [2024-11-20 13:55:15,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 291 transitions, 658 flow [2024-11-20 13:55:15,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 291 transitions, 654 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:55:15,596 INFO L231 Difference]: Finished difference. Result has 296 places, 291 transitions, 598 flow [2024-11-20 13:55:15,597 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=598, PETRI_PLACES=296, PETRI_TRANSITIONS=291} [2024-11-20 13:55:15,598 INFO L277 CegarLoopForPetriNet]: 311 programPoint places, -15 predicate places. [2024-11-20 13:55:15,598 INFO L471 AbstractCegarLoop]: Abstraction has has 296 places, 291 transitions, 598 flow [2024-11-20 13:55:15,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 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 13:55:15,599 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:55:15,599 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] [2024-11-20 13:55:15,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:55:15,599 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:55:15,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:55:15,600 INFO L85 PathProgramCache]: Analyzing trace with hash 969486859, now seen corresponding path program 1 times [2024-11-20 13:55:15,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:55:15,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246364411] [2024-11-20 13:55:15,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:55:15,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:55:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:55:15,659 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 13:55:15,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:55:15,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246364411] [2024-11-20 13:55:15,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246364411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:55:15,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:55:15,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:55:15,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357322892] [2024-11-20 13:55:15,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:55:15,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:55:15,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:55:15,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:55:15,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:55:15,684 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 327 [2024-11-20 13:55:15,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 291 transitions, 598 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 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 13:55:15,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:55:15,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 327 [2024-11-20 13:55:15,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:55:19,915 INFO L124 PetriNetUnfolderBase]: 7863/33824 cut-off events. [2024-11-20 13:55:19,915 INFO L125 PetriNetUnfolderBase]: For 605/605 co-relation queries the response was YES. [2024-11-20 13:55:20,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43430 conditions, 33824 events. 7863/33824 cut-off events. For 605/605 co-relation queries the response was YES. Maximal size of possible extension queue 885. Compared 452548 event pairs, 6806 based on Foata normal form. 0/28685 useless extension candidates. Maximal degree in co-relation 43360. Up to 8993 conditions per place. [2024-11-20 13:55:20,344 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 28 selfloop transitions, 2 changer transitions 0/290 dead transitions. [2024-11-20 13:55:20,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 290 transitions, 656 flow [2024-11-20 13:55:20,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:55:20,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:55:20,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 886 transitions. [2024-11-20 13:55:20,346 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9031600407747197 [2024-11-20 13:55:20,347 INFO L175 Difference]: Start difference. First operand has 296 places, 291 transitions, 598 flow. Second operand 3 states and 886 transitions. [2024-11-20 13:55:20,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 290 transitions, 656 flow [2024-11-20 13:55:20,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 290 transitions, 652 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:55:20,351 INFO L231 Difference]: Finished difference. Result has 295 places, 290 transitions, 596 flow [2024-11-20 13:55:20,351 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=596, PETRI_PLACES=295, PETRI_TRANSITIONS=290} [2024-11-20 13:55:20,352 INFO L277 CegarLoopForPetriNet]: 311 programPoint places, -16 predicate places. [2024-11-20 13:55:20,352 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 290 transitions, 596 flow [2024-11-20 13:55:20,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 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 13:55:20,353 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:55:20,353 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:55:20,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:55:20,353 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:55:20,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:55:20,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1707781637, now seen corresponding path program 1 times [2024-11-20 13:55:20,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:55:20,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229678572] [2024-11-20 13:55:20,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:55:20,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:55:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:55:20,451 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 13:55:20,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:55:20,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229678572] [2024-11-20 13:55:20,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229678572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:55:20,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:55:20,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:55:20,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637075895] [2024-11-20 13:55:20,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:55:20,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:55:20,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:55:20,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:55:20,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:55:20,472 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 327 [2024-11-20 13:55:20,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 290 transitions, 596 flow. Second operand has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 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 13:55:20,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:55:20,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 327 [2024-11-20 13:55:20,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:55:25,560 INFO L124 PetriNetUnfolderBase]: 11593/41062 cut-off events. [2024-11-20 13:55:25,560 INFO L125 PetriNetUnfolderBase]: For 321/321 co-relation queries the response was YES. [2024-11-20 13:55:26,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56411 conditions, 41062 events. 11593/41062 cut-off events. For 321/321 co-relation queries the response was YES. Maximal size of possible extension queue 1400. Compared 553783 event pairs, 8021 based on Foata normal form. 0/34963 useless extension candidates. Maximal degree in co-relation 56333. Up to 10570 conditions per place. [2024-11-20 13:55:26,430 INFO L140 encePairwiseOnDemand]: 324/327 looper letters, 42 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2024-11-20 13:55:26,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 304 transitions, 718 flow [2024-11-20 13:55:26,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:55:26,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:55:26,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 906 transitions. [2024-11-20 13:55:26,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9235474006116208 [2024-11-20 13:55:26,433 INFO L175 Difference]: Start difference. First operand has 295 places, 290 transitions, 596 flow. Second operand 3 states and 906 transitions. [2024-11-20 13:55:26,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 304 transitions, 718 flow [2024-11-20 13:55:26,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 304 transitions, 714 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:55:26,436 INFO L231 Difference]: Finished difference. Result has 294 places, 289 transitions, 594 flow [2024-11-20 13:55:26,437 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=594, PETRI_PLACES=294, PETRI_TRANSITIONS=289} [2024-11-20 13:55:26,437 INFO L277 CegarLoopForPetriNet]: 311 programPoint places, -17 predicate places. [2024-11-20 13:55:26,437 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 289 transitions, 594 flow [2024-11-20 13:55:26,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 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 13:55:26,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:55:26,438 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:55:26,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:55:26,439 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:55:26,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:55:26,439 INFO L85 PathProgramCache]: Analyzing trace with hash -61215234, now seen corresponding path program 1 times [2024-11-20 13:55:26,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:55:26,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730943743] [2024-11-20 13:55:26,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:55:26,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:55:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:55:26,517 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 13:55:26,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:55:26,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730943743] [2024-11-20 13:55:26,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730943743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:55:26,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:55:26,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:55:26,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100069200] [2024-11-20 13:55:26,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:55:26,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:55:26,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:55:26,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:55:26,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:55:26,533 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 327 [2024-11-20 13:55:26,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 289 transitions, 594 flow. Second operand has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 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 13:55:26,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:55:26,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 327 [2024-11-20 13:55:26,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:55:29,506 INFO L124 PetriNetUnfolderBase]: 8548/27654 cut-off events. [2024-11-20 13:55:29,506 INFO L125 PetriNetUnfolderBase]: For 697/697 co-relation queries the response was YES. [2024-11-20 13:55:29,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39819 conditions, 27654 events. 8548/27654 cut-off events. For 697/697 co-relation queries the response was YES. Maximal size of possible extension queue 1089. Compared 338571 event pairs, 5169 based on Foata normal form. 0/24663 useless extension candidates. Maximal degree in co-relation 26915. Up to 6194 conditions per place. [2024-11-20 13:55:29,845 INFO L140 encePairwiseOnDemand]: 325/327 looper letters, 41 selfloop transitions, 1 changer transitions 0/303 dead transitions. [2024-11-20 13:55:29,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 303 transitions, 712 flow [2024-11-20 13:55:29,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:55:29,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:55:29,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 910 transitions. [2024-11-20 13:55:29,848 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9276248725790011 [2024-11-20 13:55:29,848 INFO L175 Difference]: Start difference. First operand has 294 places, 289 transitions, 594 flow. Second operand 3 states and 910 transitions. [2024-11-20 13:55:29,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 303 transitions, 712 flow [2024-11-20 13:55:29,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 303 transitions, 708 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:55:29,854 INFO L231 Difference]: Finished difference. Result has 293 places, 288 transitions, 590 flow [2024-11-20 13:55:29,854 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=590, PETRI_PLACES=293, PETRI_TRANSITIONS=288} [2024-11-20 13:55:29,857 INFO L277 CegarLoopForPetriNet]: 311 programPoint places, -18 predicate places. [2024-11-20 13:55:29,857 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 288 transitions, 590 flow [2024-11-20 13:55:29,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 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 13:55:29,858 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:55:29,859 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:55:29,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:55:29,859 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-20 13:55:29,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:55:29,860 INFO L85 PathProgramCache]: Analyzing trace with hash -89612959, now seen corresponding path program 1 times [2024-11-20 13:55:29,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:55:29,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521493867] [2024-11-20 13:55:29,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:55:29,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:55:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:55:29,905 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 13:55:29,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:55:29,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521493867] [2024-11-20 13:55:29,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521493867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:55:29,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:55:29,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:55:29,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364149090] [2024-11-20 13:55:29,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:55:29,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:55:29,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:55:29,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:55:29,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:55:29,920 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 327 [2024-11-20 13:55:29,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 288 transitions, 590 flow. Second operand has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 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 13:55:29,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:55:29,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 327 [2024-11-20 13:55:29,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand