./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.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 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:52:51,177 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:52:51,249 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:52:51,253 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:52:51,254 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:52:51,279 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:52:51,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:52:51,280 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:52:51,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:52:51,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:52:51,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:52:51,282 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:52:51,283 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:52:51,283 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:52:51,283 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:52:51,285 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:52:51,285 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:52:51,285 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:52:51,285 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:52:51,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:52:51,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:52:51,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:52:51,289 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:52:51,289 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:52:51,289 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:52:51,289 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:52:51,289 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:52:51,290 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:52:51,290 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:52:51,290 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:52:51,290 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:52:51,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:52:51,290 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:52:51,291 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:52:51,291 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:52:51,291 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:52:51,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:52:51,293 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:52:51,293 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:52:51,293 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:52:51,294 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:52:51,294 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 [2024-11-09 06:52:51,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:52:51,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:52:51,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:52:51,557 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:52:51,557 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:52:51,559 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i [2024-11-09 06:52:53,091 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:52:53,395 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:52:53,396 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i [2024-11-09 06:52:53,419 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/666ddf8dc/9354334d622b4e17a4e191da0012cff1/FLAG4332bb285 [2024-11-09 06:52:53,686 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/666ddf8dc/9354334d622b4e17a4e191da0012cff1 [2024-11-09 06:52:53,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:52:53,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:52:53,692 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:52:53,692 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:52:53,696 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:52:53,696 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:52:53" (1/1) ... [2024-11-09 06:52:53,697 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bec7559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:53, skipping insertion in model container [2024-11-09 06:52:53,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:52:53" (1/1) ... [2024-11-09 06:52:53,739 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:52:54,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:52:54,393 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:52:54,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:52:54,654 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:52:54,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:54 WrapperNode [2024-11-09 06:52:54,656 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:52:54,656 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:52:54,657 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:52:54,657 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:52:54,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:54" (1/1) ... [2024-11-09 06:52:54,726 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:54" (1/1) ... [2024-11-09 06:52:54,780 INFO L138 Inliner]: procedures = 370, calls = 86, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 292 [2024-11-09 06:52:54,780 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:52:54,781 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:52:54,785 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:52:54,785 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:52:54,797 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:54" (1/1) ... [2024-11-09 06:52:54,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:54" (1/1) ... [2024-11-09 06:52:54,808 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:54" (1/1) ... [2024-11-09 06:52:54,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:54" (1/1) ... [2024-11-09 06:52:54,834 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:54" (1/1) ... [2024-11-09 06:52:54,840 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:54" (1/1) ... [2024-11-09 06:52:54,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:54" (1/1) ... [2024-11-09 06:52:54,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:54" (1/1) ... [2024-11-09 06:52:54,854 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:52:54,856 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:52:54,856 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:52:54,856 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:52:54,857 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:54" (1/1) ... [2024-11-09 06:52:54,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:52:54,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:52:54,892 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) [2024-11-09 06:52:54,896 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 [2024-11-09 06:52:54,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 06:52:54,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 06:52:54,942 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 06:52:54,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:52:54,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:52:54,942 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 06:52:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 06:52:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:52:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:52:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 06:52:54,943 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 06:52:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:52:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:52:54,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:52:54,946 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:52:55,136 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:52:55,138 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:52:55,637 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:52:55,637 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:52:55,684 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:52:55,685 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 06:52:55,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:52:55 BoogieIcfgContainer [2024-11-09 06:52:55,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:52:55,687 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:52:55,687 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:52:55,691 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:52:55,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:52:53" (1/3) ... [2024-11-09 06:52:55,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c0ec90d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:52:55, skipping insertion in model container [2024-11-09 06:52:55,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:52:54" (2/3) ... [2024-11-09 06:52:55,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c0ec90d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:52:55, skipping insertion in model container [2024-11-09 06:52:55,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:52:55" (3/3) ... [2024-11-09 06:52:55,696 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_16-arrayloop_rc.i [2024-11-09 06:52:55,713 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:52:55,713 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-09 06:52:55,714 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:52:55,807 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 06:52:55,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 322 places, 324 transitions, 652 flow [2024-11-09 06:52:55,998 INFO L124 PetriNetUnfolderBase]: 6/323 cut-off events. [2024-11-09 06:52:55,999 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:52:56,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 323 events. 6/323 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 416 event pairs, 0 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 201. Up to 2 conditions per place. [2024-11-09 06:52:56,009 INFO L82 GeneralOperation]: Start removeDead. Operand has 322 places, 324 transitions, 652 flow [2024-11-09 06:52:56,015 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 321 places, 323 transitions, 649 flow [2024-11-09 06:52:56,027 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:52:56,033 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;@e7d5d6e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:52:56,034 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-09 06:52:56,054 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:52:56,054 INFO L124 PetriNetUnfolderBase]: 3/123 cut-off events. [2024-11-09 06:52:56,054 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:52:56,055 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:56,055 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] [2024-11-09 06:52:56,056 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 06:52:56,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:56,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1517131515, now seen corresponding path program 1 times [2024-11-09 06:52:56,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:56,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967449951] [2024-11-09 06:52:56,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:56,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:56,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:56,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:56,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967449951] [2024-11-09 06:52:56,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967449951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:56,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:56,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:52:56,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328783038] [2024-11-09 06:52:56,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:56,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:52:56,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:56,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:52:56,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:52:57,368 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 324 [2024-11-09 06:52:57,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 323 transitions, 649 flow. Second operand has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 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) [2024-11-09 06:52:57,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:57,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 324 [2024-11-09 06:52:57,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:58,382 INFO L124 PetriNetUnfolderBase]: 1265/4916 cut-off events. [2024-11-09 06:52:58,382 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:52:58,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7460 conditions, 4916 events. 1265/4916 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 36222 event pairs, 912 based on Foata normal form. 137/4643 useless extension candidates. Maximal degree in co-relation 7320. Up to 2359 conditions per place. [2024-11-09 06:52:58,410 INFO L140 encePairwiseOnDemand]: 284/324 looper letters, 84 selfloop transitions, 107 changer transitions 0/428 dead transitions. [2024-11-09 06:52:58,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 428 transitions, 1241 flow [2024-11-09 06:52:58,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:52:58,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:52:58,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1628 transitions. [2024-11-09 06:52:58,426 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8374485596707819 [2024-11-09 06:52:58,428 INFO L175 Difference]: Start difference. First operand has 321 places, 323 transitions, 649 flow. Second operand 6 states and 1628 transitions. [2024-11-09 06:52:58,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 428 transitions, 1241 flow [2024-11-09 06:52:58,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 428 transitions, 1240 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:52:58,441 INFO L231 Difference]: Finished difference. Result has 329 places, 420 transitions, 1330 flow [2024-11-09 06:52:58,444 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1330, PETRI_PLACES=329, PETRI_TRANSITIONS=420} [2024-11-09 06:52:58,447 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 8 predicate places. [2024-11-09 06:52:58,447 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 420 transitions, 1330 flow [2024-11-09 06:52:58,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 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) [2024-11-09 06:52:58,449 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:58,449 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] [2024-11-09 06:52:58,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:52:58,450 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 06:52:58,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:58,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1242346274, now seen corresponding path program 1 times [2024-11-09 06:52:58,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:58,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073878672] [2024-11-09 06:52:58,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:58,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:58,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:58,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:58,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073878672] [2024-11-09 06:52:58,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073878672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:58,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:58,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:52:58,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11810554] [2024-11-09 06:52:58,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:58,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:52:58,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:58,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:52:58,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:52:59,290 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 324 [2024-11-09 06:52:59,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 420 transitions, 1330 flow. Second operand has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 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) [2024-11-09 06:52:59,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:59,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 324 [2024-11-09 06:52:59,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:53:00,123 INFO L124 PetriNetUnfolderBase]: 1531/5800 cut-off events. [2024-11-09 06:53:00,123 INFO L125 PetriNetUnfolderBase]: For 1217/1220 co-relation queries the response was YES. [2024-11-09 06:53:00,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10592 conditions, 5800 events. 1531/5800 cut-off events. For 1217/1220 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 44183 event pairs, 936 based on Foata normal form. 0/5357 useless extension candidates. Maximal degree in co-relation 10439. Up to 2637 conditions per place. [2024-11-09 06:53:00,145 INFO L140 encePairwiseOnDemand]: 287/324 looper letters, 180 selfloop transitions, 107 changer transitions 0/528 dead transitions. [2024-11-09 06:53:00,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 528 transitions, 2312 flow [2024-11-09 06:53:00,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:53:00,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:53:00,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1621 transitions. [2024-11-09 06:53:00,148 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8338477366255144 [2024-11-09 06:53:00,148 INFO L175 Difference]: Start difference. First operand has 329 places, 420 transitions, 1330 flow. Second operand 6 states and 1621 transitions. [2024-11-09 06:53:00,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 528 transitions, 2312 flow [2024-11-09 06:53:00,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 528 transitions, 2312 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:53:00,166 INFO L231 Difference]: Finished difference. Result has 338 places, 520 transitions, 2210 flow [2024-11-09 06:53:00,167 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=1328, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2210, PETRI_PLACES=338, PETRI_TRANSITIONS=520} [2024-11-09 06:53:00,167 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 17 predicate places. [2024-11-09 06:53:00,168 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 520 transitions, 2210 flow [2024-11-09 06:53:00,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 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) [2024-11-09 06:53:00,169 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:53:00,169 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] [2024-11-09 06:53:00,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:53:00,170 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 06:53:00,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:00,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1480117607, now seen corresponding path program 1 times [2024-11-09 06:53:00,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:53:00,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936288722] [2024-11-09 06:53:00,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:00,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:53:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:00,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:53:00,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:53:00,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936288722] [2024-11-09 06:53:00,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936288722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:53:00,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:53:00,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:53:00,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379369838] [2024-11-09 06:53:00,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:53:00,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:53:00,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:53:00,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:53:00,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:53:00,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 324 [2024-11-09 06:53:00,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 520 transitions, 2210 flow. Second operand has 3 states, 3 states have (on average 309.0) internal successors, (927), 3 states have internal predecessors, (927), 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) [2024-11-09 06:53:00,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:53:00,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 324 [2024-11-09 06:53:00,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:53:00,919 INFO L124 PetriNetUnfolderBase]: 1081/4426 cut-off events. [2024-11-09 06:53:00,920 INFO L125 PetriNetUnfolderBase]: For 1106/1112 co-relation queries the response was YES. [2024-11-09 06:53:00,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8836 conditions, 4426 events. 1081/4426 cut-off events. For 1106/1112 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 28552 event pairs, 108 based on Foata normal form. 4/4184 useless extension candidates. Maximal degree in co-relation 8615. Up to 1137 conditions per place. [2024-11-09 06:53:00,951 INFO L140 encePairwiseOnDemand]: 318/324 looper letters, 16 selfloop transitions, 4 changer transitions 0/526 dead transitions. [2024-11-09 06:53:00,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 526 transitions, 2262 flow [2024-11-09 06:53:00,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:53:00,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:53:00,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 943 transitions. [2024-11-09 06:53:00,954 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.970164609053498 [2024-11-09 06:53:00,954 INFO L175 Difference]: Start difference. First operand has 338 places, 520 transitions, 2210 flow. Second operand 3 states and 943 transitions. [2024-11-09 06:53:00,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 526 transitions, 2262 flow [2024-11-09 06:53:00,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 526 transitions, 2070 flow, removed 96 selfloop flow, removed 0 redundant places. [2024-11-09 06:53:00,971 INFO L231 Difference]: Finished difference. Result has 341 places, 522 transitions, 2042 flow [2024-11-09 06:53:00,972 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=2018, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2042, PETRI_PLACES=341, PETRI_TRANSITIONS=522} [2024-11-09 06:53:00,973 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 20 predicate places. [2024-11-09 06:53:00,973 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 522 transitions, 2042 flow [2024-11-09 06:53:00,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 309.0) internal successors, (927), 3 states have internal predecessors, (927), 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) [2024-11-09 06:53:00,974 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:53:00,974 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] [2024-11-09 06:53:00,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:53:00,974 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 06:53:00,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:00,975 INFO L85 PathProgramCache]: Analyzing trace with hash 616109971, now seen corresponding path program 1 times [2024-11-09 06:53:00,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:53:00,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059992444] [2024-11-09 06:53:00,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:00,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:53:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:01,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:53:01,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:53:01,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059992444] [2024-11-09 06:53:01,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059992444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:53:01,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:53:01,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:53:01,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032911935] [2024-11-09 06:53:01,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:53:01,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:53:01,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:53:01,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:53:01,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:53:01,757 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 324 [2024-11-09 06:53:01,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 522 transitions, 2042 flow. Second operand has 6 states, 6 states have (on average 233.0) internal successors, (1398), 6 states have internal predecessors, (1398), 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) [2024-11-09 06:53:01,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:53:01,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 324 [2024-11-09 06:53:01,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:53:03,548 INFO L124 PetriNetUnfolderBase]: 2970/10686 cut-off events. [2024-11-09 06:53:03,549 INFO L125 PetriNetUnfolderBase]: For 6020/6123 co-relation queries the response was YES. [2024-11-09 06:53:03,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23742 conditions, 10686 events. 2970/10686 cut-off events. For 6020/6123 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 84581 event pairs, 1872 based on Foata normal form. 0/10145 useless extension candidates. Maximal degree in co-relation 23486. Up to 5591 conditions per place. [2024-11-09 06:53:03,621 INFO L140 encePairwiseOnDemand]: 318/324 looper letters, 285 selfloop transitions, 5 changer transitions 0/521 dead transitions. [2024-11-09 06:53:03,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 521 transitions, 2620 flow [2024-11-09 06:53:03,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:53:03,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:53:03,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1471 transitions. [2024-11-09 06:53:03,626 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7566872427983539 [2024-11-09 06:53:03,627 INFO L175 Difference]: Start difference. First operand has 341 places, 522 transitions, 2042 flow. Second operand 6 states and 1471 transitions. [2024-11-09 06:53:03,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 521 transitions, 2620 flow [2024-11-09 06:53:03,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 521 transitions, 2616 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:53:03,642 INFO L231 Difference]: Finished difference. Result has 344 places, 521 transitions, 2046 flow [2024-11-09 06:53:03,643 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=2036, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2046, PETRI_PLACES=344, PETRI_TRANSITIONS=521} [2024-11-09 06:53:03,644 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 23 predicate places. [2024-11-09 06:53:03,644 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 521 transitions, 2046 flow [2024-11-09 06:53:03,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 233.0) internal successors, (1398), 6 states have internal predecessors, (1398), 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) [2024-11-09 06:53:03,646 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:53:03,646 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:53:03,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:53:03,647 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 06:53:03,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:03,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1559395517, now seen corresponding path program 1 times [2024-11-09 06:53:03,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:53:03,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436095153] [2024-11-09 06:53:03,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:03,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:53:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:03,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:53:03,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:53:03,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436095153] [2024-11-09 06:53:03,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436095153] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:53:03,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975799057] [2024-11-09 06:53:03,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:03,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:53:03,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:53:03,919 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) [2024-11-09 06:53:03,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:53:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:04,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:53:04,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:04,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:53:04,166 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:53:04,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:53:04,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975799057] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:53:04,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:53:04,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 06:53:04,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109976530] [2024-11-09 06:53:04,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:53:04,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:53:04,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:53:04,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:53:04,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:53:04,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 324 [2024-11-09 06:53:04,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 521 transitions, 2046 flow. Second operand has 10 states, 10 states have (on average 305.0) internal successors, (3050), 10 states have internal predecessors, (3050), 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) [2024-11-09 06:53:04,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:53:04,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 324 [2024-11-09 06:53:04,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:53:05,582 INFO L124 PetriNetUnfolderBase]: 1095/4581 cut-off events. [2024-11-09 06:53:05,583 INFO L125 PetriNetUnfolderBase]: For 683/689 co-relation queries the response was YES. [2024-11-09 06:53:05,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8884 conditions, 4581 events. 1095/4581 cut-off events. For 683/689 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 29144 event pairs, 106 based on Foata normal form. 2/4327 useless extension candidates. Maximal degree in co-relation 8588. Up to 922 conditions per place. [2024-11-09 06:53:05,615 INFO L140 encePairwiseOnDemand]: 315/324 looper letters, 22 selfloop transitions, 13 changer transitions 0/536 dead transitions. [2024-11-09 06:53:05,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 536 transitions, 2148 flow [2024-11-09 06:53:05,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:53:05,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:53:05,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2764 transitions. [2024-11-09 06:53:05,625 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9478737997256516 [2024-11-09 06:53:05,625 INFO L175 Difference]: Start difference. First operand has 344 places, 521 transitions, 2046 flow. Second operand 9 states and 2764 transitions. [2024-11-09 06:53:05,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 536 transitions, 2148 flow [2024-11-09 06:53:05,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 536 transitions, 2138 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 06:53:05,643 INFO L231 Difference]: Finished difference. Result has 350 places, 528 transitions, 2104 flow [2024-11-09 06:53:05,644 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=2036, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2104, PETRI_PLACES=350, PETRI_TRANSITIONS=528} [2024-11-09 06:53:05,645 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 29 predicate places. [2024-11-09 06:53:05,645 INFO L471 AbstractCegarLoop]: Abstraction has has 350 places, 528 transitions, 2104 flow [2024-11-09 06:53:05,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 305.0) internal successors, (3050), 10 states have internal predecessors, (3050), 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) [2024-11-09 06:53:05,647 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:53:05,647 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:53:05,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:53:05,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:53:05,850 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 06:53:05,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:05,851 INFO L85 PathProgramCache]: Analyzing trace with hash 494578627, now seen corresponding path program 2 times [2024-11-09 06:53:05,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:53:05,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030439316] [2024-11-09 06:53:05,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:05,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:53:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:06,236 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:53:06,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:53:06,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030439316] [2024-11-09 06:53:06,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030439316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:53:06,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443197843] [2024-11-09 06:53:06,237 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:53:06,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:53:06,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:53:06,241 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) [2024-11-09 06:53:06,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:53:06,387 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:53:06,387 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:53:06,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:53:06,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:06,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 06:53:06,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-09 06:53:06,474 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:53:06,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-09 06:53:06,508 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:53:06,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-09 06:53:06,537 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-09 06:53:06,538 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:53:06,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443197843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:53:06,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:53:06,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-09 06:53:06,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19193394] [2024-11-09 06:53:06,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:53:06,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:53:06,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:53:06,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:53:06,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:53:07,164 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 324 [2024-11-09 06:53:07,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 528 transitions, 2104 flow. Second operand has 6 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 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) [2024-11-09 06:53:07,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:53:07,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 324 [2024-11-09 06:53:07,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:53:10,319 INFO L124 PetriNetUnfolderBase]: 3572/12304 cut-off events. [2024-11-09 06:53:10,319 INFO L125 PetriNetUnfolderBase]: For 5280/5362 co-relation queries the response was YES. [2024-11-09 06:53:10,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26818 conditions, 12304 events. 3572/12304 cut-off events. For 5280/5362 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 97932 event pairs, 1616 based on Foata normal form. 0/11548 useless extension candidates. Maximal degree in co-relation 26484. Up to 6064 conditions per place. [2024-11-09 06:53:10,437 INFO L140 encePairwiseOnDemand]: 281/324 looper letters, 245 selfloop transitions, 170 changer transitions 0/697 dead transitions. [2024-11-09 06:53:10,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 697 transitions, 3412 flow [2024-11-09 06:53:10,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:53:10,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:53:10,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1684 transitions. [2024-11-09 06:53:10,450 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8662551440329218 [2024-11-09 06:53:10,450 INFO L175 Difference]: Start difference. First operand has 350 places, 528 transitions, 2104 flow. Second operand 6 states and 1684 transitions. [2024-11-09 06:53:10,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 697 transitions, 3412 flow [2024-11-09 06:53:10,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 697 transitions, 3402 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-09 06:53:10,507 INFO L231 Difference]: Finished difference. Result has 359 places, 689 transitions, 3344 flow [2024-11-09 06:53:10,507 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=2094, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=528, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3344, PETRI_PLACES=359, PETRI_TRANSITIONS=689} [2024-11-09 06:53:10,508 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 38 predicate places. [2024-11-09 06:53:10,508 INFO L471 AbstractCegarLoop]: Abstraction has has 359 places, 689 transitions, 3344 flow [2024-11-09 06:53:10,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 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) [2024-11-09 06:53:10,509 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:53:10,510 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:53:10,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:53:10,714 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,SelfDestructingSolverStorable5 [2024-11-09 06:53:10,719 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 06:53:10,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:10,719 INFO L85 PathProgramCache]: Analyzing trace with hash -76154808, now seen corresponding path program 1 times [2024-11-09 06:53:10,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:53:10,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034031200] [2024-11-09 06:53:10,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:10,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:53:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:11,126 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:53:11,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:53:11,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034031200] [2024-11-09 06:53:11,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034031200] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:53:11,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772509542] [2024-11-09 06:53:11,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:11,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:53:11,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:53:11,132 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) [2024-11-09 06:53:11,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:53:11,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:11,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:53:11,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:11,675 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:53:11,676 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:53:11,855 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:53:11,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772509542] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:53:11,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:53:11,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-09 06:53:11,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194910720] [2024-11-09 06:53:11,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:53:11,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 06:53:11,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:53:11,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 06:53:11,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-09 06:53:12,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 324 [2024-11-09 06:53:12,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 689 transitions, 3344 flow. Second operand has 18 states, 18 states have (on average 305.0) internal successors, (5490), 18 states have internal predecessors, (5490), 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) [2024-11-09 06:53:12,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:53:12,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 324 [2024-11-09 06:53:12,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:53:13,712 INFO L124 PetriNetUnfolderBase]: 1777/6922 cut-off events. [2024-11-09 06:53:13,713 INFO L125 PetriNetUnfolderBase]: For 3194/3297 co-relation queries the response was YES. [2024-11-09 06:53:13,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16027 conditions, 6922 events. 1777/6922 cut-off events. For 3194/3297 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 47998 event pairs, 163 based on Foata normal form. 4/6621 useless extension candidates. Maximal degree in co-relation 15426. Up to 1392 conditions per place. [2024-11-09 06:53:13,760 INFO L140 encePairwiseOnDemand]: 315/324 looper letters, 26 selfloop transitions, 25 changer transitions 0/713 dead transitions. [2024-11-09 06:53:13,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 713 transitions, 3546 flow [2024-11-09 06:53:13,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 06:53:13,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-09 06:53:13,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6418 transitions. [2024-11-09 06:53:13,774 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9432686654908877 [2024-11-09 06:53:13,774 INFO L175 Difference]: Start difference. First operand has 359 places, 689 transitions, 3344 flow. Second operand 21 states and 6418 transitions. [2024-11-09 06:53:13,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 713 transitions, 3546 flow [2024-11-09 06:53:13,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 379 places, 713 transitions, 3510 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-09 06:53:13,821 INFO L231 Difference]: Finished difference. Result has 384 places, 702 transitions, 3452 flow [2024-11-09 06:53:13,822 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=3308, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=689, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=674, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3452, PETRI_PLACES=384, PETRI_TRANSITIONS=702} [2024-11-09 06:53:13,822 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 63 predicate places. [2024-11-09 06:53:13,823 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 702 transitions, 3452 flow [2024-11-09 06:53:13,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 305.0) internal successors, (5490), 18 states have internal predecessors, (5490), 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) [2024-11-09 06:53:13,826 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:53:13,827 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:53:13,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 06:53:14,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:53:14,028 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 06:53:14,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:14,028 INFO L85 PathProgramCache]: Analyzing trace with hash -185603768, now seen corresponding path program 2 times [2024-11-09 06:53:14,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:53:14,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935054425] [2024-11-09 06:53:14,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:14,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:53:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:15,124 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:53:15,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:53:15,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935054425] [2024-11-09 06:53:15,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935054425] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:53:15,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718303052] [2024-11-09 06:53:15,128 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:53:15,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:53:15,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:53:15,130 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:53:15,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:53:15,392 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:53:15,393 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:53:15,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:53:15,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:15,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-09 06:53:15,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-09 06:53:15,489 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:53:15,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-11-09 06:53:15,530 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:53:15,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2024-11-09 06:53:15,565 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2024-11-09 06:53:15,565 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:53:15,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718303052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:53:15,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:53:15,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-09 06:53:15,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236072530] [2024-11-09 06:53:15,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:53:15,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:53:15,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:53:15,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:53:15,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-09 06:53:15,959 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 324 [2024-11-09 06:53:15,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 702 transitions, 3452 flow. Second operand has 6 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 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) [2024-11-09 06:53:15,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:53:15,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 324 [2024-11-09 06:53:15,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:53:20,289 INFO L124 PetriNetUnfolderBase]: 4263/14675 cut-off events. [2024-11-09 06:53:20,290 INFO L125 PetriNetUnfolderBase]: For 10469/10618 co-relation queries the response was YES. [2024-11-09 06:53:20,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37006 conditions, 14675 events. 4263/14675 cut-off events. For 10469/10618 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 119208 event pairs, 1677 based on Foata normal form. 0/13875 useless extension candidates. Maximal degree in co-relation 36312. Up to 6897 conditions per place. [2024-11-09 06:53:20,398 INFO L140 encePairwiseOnDemand]: 281/324 looper letters, 395 selfloop transitions, 170 changer transitions 0/871 dead transitions. [2024-11-09 06:53:20,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 871 transitions, 5360 flow [2024-11-09 06:53:20,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:53:20,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:53:20,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1684 transitions. [2024-11-09 06:53:20,402 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8662551440329218 [2024-11-09 06:53:20,402 INFO L175 Difference]: Start difference. First operand has 384 places, 702 transitions, 3452 flow. Second operand 6 states and 1684 transitions. [2024-11-09 06:53:20,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 871 transitions, 5360 flow [2024-11-09 06:53:20,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 871 transitions, 5334 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-09 06:53:20,451 INFO L231 Difference]: Finished difference. Result has 388 places, 863 transitions, 4976 flow [2024-11-09 06:53:20,452 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=3426, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=702, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4976, PETRI_PLACES=388, PETRI_TRANSITIONS=863} [2024-11-09 06:53:20,453 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 67 predicate places. [2024-11-09 06:53:20,453 INFO L471 AbstractCegarLoop]: Abstraction has has 388 places, 863 transitions, 4976 flow [2024-11-09 06:53:20,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 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) [2024-11-09 06:53:20,455 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:53:20,456 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:53:20,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 06:53:20,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:53:20,657 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 06:53:20,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:20,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1059321477, now seen corresponding path program 1 times [2024-11-09 06:53:20,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:53:20,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875074614] [2024-11-09 06:53:20,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:20,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:53:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:21,725 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:53:21,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:53:21,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875074614] [2024-11-09 06:53:21,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875074614] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:53:21,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507454312] [2024-11-09 06:53:21,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:21,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:53:21,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:53:21,728 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:53:21,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:53:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:22,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 1413 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:53:22,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:22,501 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:53:22,501 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:53:22,947 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:53:22,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507454312] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:53:22,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:53:22,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-09 06:53:22,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787305984] [2024-11-09 06:53:22,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:53:22,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 06:53:22,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:53:22,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 06:53:22,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-09 06:53:23,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 324 [2024-11-09 06:53:23,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 863 transitions, 4976 flow. Second operand has 23 states, 23 states have (on average 305.2173913043478) internal successors, (7020), 23 states have internal predecessors, (7020), 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) [2024-11-09 06:53:23,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:53:23,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 324 [2024-11-09 06:53:23,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:53:26,021 INFO L124 PetriNetUnfolderBase]: 2478/9371 cut-off events. [2024-11-09 06:53:26,021 INFO L125 PetriNetUnfolderBase]: For 7454/7612 co-relation queries the response was YES. [2024-11-09 06:53:26,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24560 conditions, 9371 events. 2478/9371 cut-off events. For 7454/7612 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 68661 event pairs, 229 based on Foata normal form. 3/9000 useless extension candidates. Maximal degree in co-relation 23696. Up to 2110 conditions per place. [2024-11-09 06:53:26,097 INFO L140 encePairwiseOnDemand]: 315/324 looper letters, 29 selfloop transitions, 34 changer transitions 0/886 dead transitions. [2024-11-09 06:53:26,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 886 transitions, 5236 flow [2024-11-09 06:53:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 06:53:26,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-09 06:53:26,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9156 transitions. [2024-11-09 06:53:26,113 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9419753086419753 [2024-11-09 06:53:26,114 INFO L175 Difference]: Start difference. First operand has 388 places, 863 transitions, 4976 flow. Second operand 30 states and 9156 transitions. [2024-11-09 06:53:26,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 886 transitions, 5236 flow [2024-11-09 06:53:26,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 886 transitions, 4900 flow, removed 168 selfloop flow, removed 0 redundant places. [2024-11-09 06:53:26,187 INFO L231 Difference]: Finished difference. Result has 421 places, 873 transitions, 4806 flow [2024-11-09 06:53:26,188 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=4640, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=863, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=836, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4806, PETRI_PLACES=421, PETRI_TRANSITIONS=873} [2024-11-09 06:53:26,189 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 100 predicate places. [2024-11-09 06:53:26,189 INFO L471 AbstractCegarLoop]: Abstraction has has 421 places, 873 transitions, 4806 flow [2024-11-09 06:53:26,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 305.2173913043478) internal successors, (7020), 23 states have internal predecessors, (7020), 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) [2024-11-09 06:53:26,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:53:26,193 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:53:26,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 06:53:26,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:53:26,398 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 06:53:26,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:26,399 INFO L85 PathProgramCache]: Analyzing trace with hash 359516673, now seen corresponding path program 2 times [2024-11-09 06:53:26,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:53:26,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247057397] [2024-11-09 06:53:26,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:26,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:53:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:28,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-11-09 06:53:28,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:53:28,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247057397] [2024-11-09 06:53:28,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247057397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:53:28,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:53:28,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 06:53:28,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889014855] [2024-11-09 06:53:28,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:53:28,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:53:28,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:53:28,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:53:28,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:53:29,242 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 324 [2024-11-09 06:53:29,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 873 transitions, 4806 flow. Second operand has 11 states, 11 states have (on average 232.0909090909091) internal successors, (2553), 11 states have internal predecessors, (2553), 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) [2024-11-09 06:53:29,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:53:29,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 324 [2024-11-09 06:53:29,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:53:35,556 INFO L124 PetriNetUnfolderBase]: 4877/16068 cut-off events. [2024-11-09 06:53:35,557 INFO L125 PetriNetUnfolderBase]: For 17318/17785 co-relation queries the response was YES. [2024-11-09 06:53:35,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46677 conditions, 16068 events. 4877/16068 cut-off events. For 17318/17785 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 129052 event pairs, 1704 based on Foata normal form. 20/15366 useless extension candidates. Maximal degree in co-relation 45651. Up to 5419 conditions per place. [2024-11-09 06:53:35,726 INFO L140 encePairwiseOnDemand]: 276/324 looper letters, 591 selfloop transitions, 145 changer transitions 0/1041 dead transitions. [2024-11-09 06:53:35,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 1041 transitions, 7260 flow [2024-11-09 06:53:35,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:53:35,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-09 06:53:35,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3080 transitions. [2024-11-09 06:53:35,733 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7921810699588477 [2024-11-09 06:53:35,733 INFO L175 Difference]: Start difference. First operand has 421 places, 873 transitions, 4806 flow. Second operand 12 states and 3080 transitions. [2024-11-09 06:53:35,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 1041 transitions, 7260 flow [2024-11-09 06:53:35,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 1041 transitions, 7212 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-09 06:53:35,846 INFO L231 Difference]: Finished difference. Result has 419 places, 892 transitions, 5384 flow [2024-11-09 06:53:35,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=4758, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=873, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=732, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5384, PETRI_PLACES=419, PETRI_TRANSITIONS=892} [2024-11-09 06:53:35,847 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 98 predicate places. [2024-11-09 06:53:35,847 INFO L471 AbstractCegarLoop]: Abstraction has has 419 places, 892 transitions, 5384 flow [2024-11-09 06:53:35,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 232.0909090909091) internal successors, (2553), 11 states have internal predecessors, (2553), 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) [2024-11-09 06:53:35,848 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:53:35,848 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:53:35,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:53:35,849 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 06:53:35,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:35,850 INFO L85 PathProgramCache]: Analyzing trace with hash 977784175, now seen corresponding path program 3 times [2024-11-09 06:53:35,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:53:35,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994084121] [2024-11-09 06:53:35,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:35,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:53:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:38,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-11-09 06:53:38,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:53:38,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994084121] [2024-11-09 06:53:38,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994084121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:53:38,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:53:38,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 06:53:38,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638847451] [2024-11-09 06:53:38,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:53:38,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:53:38,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:53:38,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:53:38,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:53:40,014 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 324 [2024-11-09 06:53:40,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 892 transitions, 5384 flow. Second operand has 11 states, 11 states have (on average 232.0909090909091) internal successors, (2553), 11 states have internal predecessors, (2553), 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) [2024-11-09 06:53:40,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:53:40,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 324 [2024-11-09 06:53:40,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:53:47,415 INFO L124 PetriNetUnfolderBase]: 5770/18258 cut-off events. [2024-11-09 06:53:47,415 INFO L125 PetriNetUnfolderBase]: For 24531/24739 co-relation queries the response was YES. [2024-11-09 06:53:47,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57797 conditions, 18258 events. 5770/18258 cut-off events. For 24531/24739 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 148286 event pairs, 1608 based on Foata normal form. 82/17663 useless extension candidates. Maximal degree in co-relation 56668. Up to 4534 conditions per place. [2024-11-09 06:53:47,645 INFO L140 encePairwiseOnDemand]: 283/324 looper letters, 868 selfloop transitions, 148 changer transitions 0/1321 dead transitions. [2024-11-09 06:53:47,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 1321 transitions, 10834 flow [2024-11-09 06:53:47,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 06:53:47,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-09 06:53:47,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5615 transitions. [2024-11-09 06:53:47,652 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7534889962426194 [2024-11-09 06:53:47,652 INFO L175 Difference]: Start difference. First operand has 419 places, 892 transitions, 5384 flow. Second operand 23 states and 5615 transitions. [2024-11-09 06:53:47,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 1321 transitions, 10834 flow [2024-11-09 06:53:47,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 1321 transitions, 10620 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-09 06:53:47,769 INFO L231 Difference]: Finished difference. Result has 452 places, 1021 transitions, 7048 flow [2024-11-09 06:53:47,770 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=5268, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=892, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=786, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=7048, PETRI_PLACES=452, PETRI_TRANSITIONS=1021} [2024-11-09 06:53:47,771 INFO L277 CegarLoopForPetriNet]: 321 programPoint places, 131 predicate places. [2024-11-09 06:53:47,771 INFO L471 AbstractCegarLoop]: Abstraction has has 452 places, 1021 transitions, 7048 flow [2024-11-09 06:53:47,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 232.0909090909091) internal successors, (2553), 11 states have internal predecessors, (2553), 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) [2024-11-09 06:53:47,772 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:53:47,772 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:53:47,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:53:47,773 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 06:53:47,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:47,773 INFO L85 PathProgramCache]: Analyzing trace with hash -625994817, now seen corresponding path program 4 times [2024-11-09 06:53:47,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:53:47,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327341963] [2024-11-09 06:53:47,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:47,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:53:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:49,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2024-11-09 06:53:49,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:53:49,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327341963] [2024-11-09 06:53:49,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327341963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:53:49,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:53:49,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 06:53:49,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859291167] [2024-11-09 06:53:49,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:53:49,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:53:49,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:53:49,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:53:49,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:53:51,082 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 324 [2024-11-09 06:53:51,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 1021 transitions, 7048 flow. Second operand has 11 states, 11 states have (on average 232.0909090909091) internal successors, (2553), 11 states have internal predecessors, (2553), 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) [2024-11-09 06:53:51,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:53:51,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 324 [2024-11-09 06:53:51,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand