./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f 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/pthread-race-challenges/per-thread-index-inc.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 2c4a731d968c8b3136fe56f501bb6493c1ca96e59709a347334934436fe70eb7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:42:56,785 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:42:56,846 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:42:56,850 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:42:56,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:42:56,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:42:56,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:42:56,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:42:56,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:42:56,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:42:56,871 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:42:56,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:42:56,871 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:42:56,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:42:56,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:42:56,873 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:42:56,873 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:42:56,873 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:42:56,874 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:42:56,874 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:42:56,874 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:42:56,877 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:42:56,877 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:42:56,877 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:42:56,877 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:42:56,878 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:42:56,878 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:42:56,878 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:42:56,878 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:42:56,878 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:42:56,878 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:42:56,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:42:56,879 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:42:56,879 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:42:56,879 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:42:56,879 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:42:56,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:42:56,880 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:42:56,880 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:42:56,880 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:42:56,880 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:42:56,882 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c4a731d968c8b3136fe56f501bb6493c1ca96e59709a347334934436fe70eb7 [2024-11-10 14:42:57,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:42:57,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:42:57,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:42:57,135 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:42:57,135 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:42:57,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc.i [2024-11-10 14:42:58,384 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:42:58,635 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:42:58,636 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc.i [2024-11-10 14:42:58,649 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3f80982c/1f3626d313104ac4a454f90127826974/FLAGed3e11145 [2024-11-10 14:42:58,975 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3f80982c/1f3626d313104ac4a454f90127826974 [2024-11-10 14:42:58,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:42:58,979 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:42:58,980 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:42:58,981 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:42:58,985 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:42:58,986 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:42:58" (1/1) ... [2024-11-10 14:42:58,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8f6881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:58, skipping insertion in model container [2024-11-10 14:42:58,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:42:58" (1/1) ... [2024-11-10 14:42:59,025 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:42:59,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:42:59,456 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:42:59,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:42:59,542 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:42:59,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:59 WrapperNode [2024-11-10 14:42:59,543 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:42:59,543 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:42:59,543 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:42:59,544 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:42:59,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:59" (1/1) ... [2024-11-10 14:42:59,563 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:59" (1/1) ... [2024-11-10 14:42:59,584 INFO L138 Inliner]: procedures = 277, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2024-11-10 14:42:59,585 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:42:59,585 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:42:59,585 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:42:59,585 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:42:59,592 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:59" (1/1) ... [2024-11-10 14:42:59,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:59" (1/1) ... [2024-11-10 14:42:59,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:59" (1/1) ... [2024-11-10 14:42:59,596 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:59" (1/1) ... [2024-11-10 14:42:59,602 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:59" (1/1) ... [2024-11-10 14:42:59,602 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:59" (1/1) ... [2024-11-10 14:42:59,604 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:59" (1/1) ... [2024-11-10 14:42:59,608 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:59" (1/1) ... [2024-11-10 14:42:59,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:42:59,616 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:42:59,616 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:42:59,616 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:42:59,617 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:59" (1/1) ... [2024-11-10 14:42:59,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:42:59,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:42:59,653 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) [2024-11-10 14:42:59,658 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 [2024-11-10 14:42:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:42:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:42:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:42:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:42:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:42:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 14:42:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:42:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:42:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-10 14:42:59,700 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-10 14:42:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:42:59,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:42:59,702 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:42:59,825 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:42:59,828 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:43:00,054 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:43:00,055 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:43:00,076 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:43:00,076 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:43:00,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:43:00 BoogieIcfgContainer [2024-11-10 14:43:00,077 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:43:00,078 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:43:00,078 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:43:00,082 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:43:00,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:42:58" (1/3) ... [2024-11-10 14:43:00,083 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55312a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:43:00, skipping insertion in model container [2024-11-10 14:43:00,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:42:59" (2/3) ... [2024-11-10 14:43:00,083 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55312a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:43:00, skipping insertion in model container [2024-11-10 14:43:00,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:43:00" (3/3) ... [2024-11-10 14:43:00,087 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-index-inc.i [2024-11-10 14:43:00,101 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:43:00,102 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-11-10 14:43:00,102 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:43:00,152 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 14:43:00,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 125 transitions, 257 flow [2024-11-10 14:43:00,235 INFO L124 PetriNetUnfolderBase]: 6/162 cut-off events. [2024-11-10 14:43:00,236 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:43:00,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 162 events. 6/162 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 262 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 81. Up to 4 conditions per place. [2024-11-10 14:43:00,241 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 125 transitions, 257 flow [2024-11-10 14:43:00,246 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 125 transitions, 257 flow [2024-11-10 14:43:00,253 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:43:00,258 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@632191b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:43:00,258 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-10 14:43:00,265 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:43:00,265 INFO L124 PetriNetUnfolderBase]: 1/33 cut-off events. [2024-11-10 14:43:00,265 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:43:00,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:00,266 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] [2024-11-10 14:43:00,267 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-10 14:43:00,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:00,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1121567677, now seen corresponding path program 1 times [2024-11-10 14:43:00,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:00,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777615310] [2024-11-10 14:43:00,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:00,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:00,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:00,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:00,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777615310] [2024-11-10 14:43:00,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777615310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:00,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:00,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:00,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104963303] [2024-11-10 14:43:00,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:00,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:00,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:00,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:00,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:00,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 125 [2024-11-10 14:43:00,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 125 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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) [2024-11-10 14:43:00,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:00,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 125 [2024-11-10 14:43:00,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:00,630 INFO L124 PetriNetUnfolderBase]: 7/234 cut-off events. [2024-11-10 14:43:00,632 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:43:00,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 234 events. 7/234 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 605 event pairs, 6 based on Foata normal form. 9/215 useless extension candidates. Maximal degree in co-relation 174. Up to 25 conditions per place. [2024-11-10 14:43:00,635 INFO L140 encePairwiseOnDemand]: 119/125 looper letters, 10 selfloop transitions, 2 changer transitions 1/121 dead transitions. [2024-11-10 14:43:00,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 121 transitions, 273 flow [2024-11-10 14:43:00,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:00,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:00,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2024-11-10 14:43:00,645 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9146666666666666 [2024-11-10 14:43:00,646 INFO L175 Difference]: Start difference. First operand has 124 places, 125 transitions, 257 flow. Second operand 3 states and 343 transitions. [2024-11-10 14:43:00,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 121 transitions, 273 flow [2024-11-10 14:43:00,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 121 transitions, 273 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:00,655 INFO L231 Difference]: Finished difference. Result has 125 places, 120 transitions, 251 flow [2024-11-10 14:43:00,657 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=251, PETRI_PLACES=125, PETRI_TRANSITIONS=120} [2024-11-10 14:43:00,661 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, 1 predicate places. [2024-11-10 14:43:00,663 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 120 transitions, 251 flow [2024-11-10 14:43:00,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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) [2024-11-10 14:43:00,663 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:00,664 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] [2024-11-10 14:43:00,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:43:00,665 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-10 14:43:00,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:00,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1811157416, now seen corresponding path program 1 times [2024-11-10 14:43:00,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:00,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380744724] [2024-11-10 14:43:00,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:00,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:00,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:00,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:00,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380744724] [2024-11-10 14:43:00,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380744724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:00,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:00,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:00,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503645131] [2024-11-10 14:43:00,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:00,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:00,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:00,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:00,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:00,765 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 125 [2024-11-10 14:43:00,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 120 transitions, 251 flow. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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) [2024-11-10 14:43:00,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:00,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 125 [2024-11-10 14:43:00,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:00,809 INFO L124 PetriNetUnfolderBase]: 9/219 cut-off events. [2024-11-10 14:43:00,810 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-10 14:43:00,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 219 events. 9/219 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 476 event pairs, 2 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 216. Up to 24 conditions per place. [2024-11-10 14:43:00,812 INFO L140 encePairwiseOnDemand]: 121/125 looper letters, 11 selfloop transitions, 2 changer transitions 0/122 dead transitions. [2024-11-10 14:43:00,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 122 transitions, 281 flow [2024-11-10 14:43:00,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:00,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:00,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2024-11-10 14:43:00,815 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.928 [2024-11-10 14:43:00,816 INFO L175 Difference]: Start difference. First operand has 125 places, 120 transitions, 251 flow. Second operand 3 states and 348 transitions. [2024-11-10 14:43:00,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 122 transitions, 281 flow [2024-11-10 14:43:00,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 122 transitions, 277 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:43:00,818 INFO L231 Difference]: Finished difference. Result has 123 places, 120 transitions, 257 flow [2024-11-10 14:43:00,819 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=257, PETRI_PLACES=123, PETRI_TRANSITIONS=120} [2024-11-10 14:43:00,819 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, -1 predicate places. [2024-11-10 14:43:00,819 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 120 transitions, 257 flow [2024-11-10 14:43:00,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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) [2024-11-10 14:43:00,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:00,820 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] [2024-11-10 14:43:00,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:43:00,821 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-10 14:43:00,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:00,821 INFO L85 PathProgramCache]: Analyzing trace with hash -2096944257, now seen corresponding path program 1 times [2024-11-10 14:43:00,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:00,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656129321] [2024-11-10 14:43:00,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:00,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:01,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:01,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:01,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656129321] [2024-11-10 14:43:01,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656129321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:01,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:01,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:01,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46379275] [2024-11-10 14:43:01,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:01,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:43:01,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:01,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:43:01,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:43:01,417 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 125 [2024-11-10 14:43:01,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 120 transitions, 257 flow. Second operand has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 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) [2024-11-10 14:43:01,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:01,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 125 [2024-11-10 14:43:01,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:01,557 INFO L124 PetriNetUnfolderBase]: 101/549 cut-off events. [2024-11-10 14:43:01,558 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 14:43:01,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 823 conditions, 549 events. 101/549 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2823 event pairs, 37 based on Foata normal form. 0/495 useless extension candidates. Maximal degree in co-relation 699. Up to 195 conditions per place. [2024-11-10 14:43:01,564 INFO L140 encePairwiseOnDemand]: 114/125 looper letters, 33 selfloop transitions, 22 changer transitions 0/149 dead transitions. [2024-11-10 14:43:01,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 149 transitions, 425 flow [2024-11-10 14:43:01,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:01,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:01,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 632 transitions. [2024-11-10 14:43:01,567 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426666666666667 [2024-11-10 14:43:01,567 INFO L175 Difference]: Start difference. First operand has 123 places, 120 transitions, 257 flow. Second operand 6 states and 632 transitions. [2024-11-10 14:43:01,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 149 transitions, 425 flow [2024-11-10 14:43:01,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 149 transitions, 425 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:01,572 INFO L231 Difference]: Finished difference. Result has 133 places, 141 transitions, 407 flow [2024-11-10 14:43:01,573 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=407, PETRI_PLACES=133, PETRI_TRANSITIONS=141} [2024-11-10 14:43:01,574 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, 9 predicate places. [2024-11-10 14:43:01,574 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 141 transitions, 407 flow [2024-11-10 14:43:01,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 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) [2024-11-10 14:43:01,575 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:01,576 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:01,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:43:01,576 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-10 14:43:01,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:01,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1748954520, now seen corresponding path program 1 times [2024-11-10 14:43:01,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:01,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851799963] [2024-11-10 14:43:01,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:01,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:01,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:01,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:01,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851799963] [2024-11-10 14:43:01,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851799963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:01,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:01,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:01,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839933315] [2024-11-10 14:43:01,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:01,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 14:43:01,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:01,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 14:43:01,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 14:43:01,756 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 125 [2024-11-10 14:43:01,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 141 transitions, 407 flow. Second operand has 5 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 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) [2024-11-10 14:43:01,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:01,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 125 [2024-11-10 14:43:01,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:01,818 INFO L124 PetriNetUnfolderBase]: 48/380 cut-off events. [2024-11-10 14:43:01,818 INFO L125 PetriNetUnfolderBase]: For 39/47 co-relation queries the response was YES. [2024-11-10 14:43:01,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 620 conditions, 380 events. 48/380 cut-off events. For 39/47 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1502 event pairs, 0 based on Foata normal form. 2/359 useless extension candidates. Maximal degree in co-relation 492. Up to 49 conditions per place. [2024-11-10 14:43:01,822 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 15 selfloop transitions, 2 changer transitions 5/148 dead transitions. [2024-11-10 14:43:01,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 148 transitions, 465 flow [2024-11-10 14:43:01,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:01,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:01,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 665 transitions. [2024-11-10 14:43:01,825 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8866666666666667 [2024-11-10 14:43:01,825 INFO L175 Difference]: Start difference. First operand has 133 places, 141 transitions, 407 flow. Second operand 6 states and 665 transitions. [2024-11-10 14:43:01,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 148 transitions, 465 flow [2024-11-10 14:43:01,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 148 transitions, 465 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:01,831 INFO L231 Difference]: Finished difference. Result has 142 places, 141 transitions, 425 flow [2024-11-10 14:43:01,832 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=425, PETRI_PLACES=142, PETRI_TRANSITIONS=141} [2024-11-10 14:43:01,832 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, 18 predicate places. [2024-11-10 14:43:01,833 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 141 transitions, 425 flow [2024-11-10 14:43:01,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 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) [2024-11-10 14:43:01,834 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:01,834 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:01,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:43:01,835 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-10 14:43:01,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:01,837 INFO L85 PathProgramCache]: Analyzing trace with hash -2039881138, now seen corresponding path program 1 times [2024-11-10 14:43:01,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:01,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712754698] [2024-11-10 14:43:01,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:01,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:01,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:01,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:01,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712754698] [2024-11-10 14:43:01,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712754698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:01,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:01,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:01,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627877783] [2024-11-10 14:43:01,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:01,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:01,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:01,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:01,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:01,894 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 125 [2024-11-10 14:43:01,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 141 transitions, 425 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2024-11-10 14:43:01,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:01,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 125 [2024-11-10 14:43:01,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:01,941 INFO L124 PetriNetUnfolderBase]: 24/270 cut-off events. [2024-11-10 14:43:01,942 INFO L125 PetriNetUnfolderBase]: For 33/44 co-relation queries the response was YES. [2024-11-10 14:43:01,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 270 events. 24/270 cut-off events. For 33/44 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 872 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 363. Up to 49 conditions per place. [2024-11-10 14:43:01,943 INFO L140 encePairwiseOnDemand]: 121/125 looper letters, 7 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2024-11-10 14:43:01,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 139 transitions, 439 flow [2024-11-10 14:43:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:01,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:01,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2024-11-10 14:43:01,946 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9173333333333333 [2024-11-10 14:43:01,947 INFO L175 Difference]: Start difference. First operand has 142 places, 141 transitions, 425 flow. Second operand 3 states and 344 transitions. [2024-11-10 14:43:01,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 139 transitions, 439 flow [2024-11-10 14:43:01,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 139 transitions, 425 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-10 14:43:01,953 INFO L231 Difference]: Finished difference. Result has 134 places, 139 transitions, 411 flow [2024-11-10 14:43:01,955 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=411, PETRI_PLACES=134, PETRI_TRANSITIONS=139} [2024-11-10 14:43:01,956 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, 10 predicate places. [2024-11-10 14:43:01,956 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 139 transitions, 411 flow [2024-11-10 14:43:01,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2024-11-10 14:43:01,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:01,957 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] [2024-11-10 14:43:01,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 14:43:01,957 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-10 14:43:01,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:01,958 INFO L85 PathProgramCache]: Analyzing trace with hash -944836333, now seen corresponding path program 1 times [2024-11-10 14:43:01,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:01,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977519090] [2024-11-10 14:43:01,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:01,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:02,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:02,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:02,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977519090] [2024-11-10 14:43:02,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977519090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:02,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:02,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:02,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887082473] [2024-11-10 14:43:02,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:02,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:02,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:02,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:02,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:02,038 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 125 [2024-11-10 14:43:02,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 139 transitions, 411 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2024-11-10 14:43:02,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:02,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 125 [2024-11-10 14:43:02,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:02,085 INFO L124 PetriNetUnfolderBase]: 24/269 cut-off events. [2024-11-10 14:43:02,085 INFO L125 PetriNetUnfolderBase]: For 33/44 co-relation queries the response was YES. [2024-11-10 14:43:02,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 269 events. 24/269 cut-off events. For 33/44 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 855 event pairs, 0 based on Foata normal form. 0/255 useless extension candidates. Maximal degree in co-relation 352. Up to 49 conditions per place. [2024-11-10 14:43:02,087 INFO L140 encePairwiseOnDemand]: 122/125 looper letters, 8 selfloop transitions, 2 changer transitions 0/138 dead transitions. [2024-11-10 14:43:02,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 138 transitions, 429 flow [2024-11-10 14:43:02,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:02,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:02,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2024-11-10 14:43:02,090 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9173333333333333 [2024-11-10 14:43:02,090 INFO L175 Difference]: Start difference. First operand has 134 places, 139 transitions, 411 flow. Second operand 3 states and 344 transitions. [2024-11-10 14:43:02,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 138 transitions, 429 flow [2024-11-10 14:43:02,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 138 transitions, 425 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:43:02,094 INFO L231 Difference]: Finished difference. Result has 133 places, 138 transitions, 409 flow [2024-11-10 14:43:02,094 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=409, PETRI_PLACES=133, PETRI_TRANSITIONS=138} [2024-11-10 14:43:02,095 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, 9 predicate places. [2024-11-10 14:43:02,095 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 138 transitions, 409 flow [2024-11-10 14:43:02,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2024-11-10 14:43:02,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:02,095 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:02,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 14:43:02,096 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-10 14:43:02,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:02,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2018698645, now seen corresponding path program 1 times [2024-11-10 14:43:02,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:02,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172378984] [2024-11-10 14:43:02,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:02,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:43:02,116 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:43:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:43:02,159 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:43:02,160 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:43:02,161 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-10 14:43:02,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-10 14:43:02,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-10 14:43:02,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-10 14:43:02,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-10 14:43:02,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-10 14:43:02,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-11-10 14:43:02,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-10 14:43:02,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-10 14:43:02,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-10 14:43:02,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-10 14:43:02,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-10 14:43:02,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-10 14:43:02,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-10 14:43:02,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-10 14:43:02,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 14:43:02,166 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:02,168 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:43:02,168 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 14:43:02,190 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 14:43:02,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 165 places, 165 transitions, 346 flow [2024-11-10 14:43:02,215 INFO L124 PetriNetUnfolderBase]: 11/276 cut-off events. [2024-11-10 14:43:02,215 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-11-10 14:43:02,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 276 events. 11/276 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 638 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 164. Up to 8 conditions per place. [2024-11-10 14:43:02,216 INFO L82 GeneralOperation]: Start removeDead. Operand has 165 places, 165 transitions, 346 flow [2024-11-10 14:43:02,218 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 165 places, 165 transitions, 346 flow [2024-11-10 14:43:02,219 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:43:02,219 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;@632191b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:43:02,219 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-10 14:43:02,221 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:43:02,222 INFO L124 PetriNetUnfolderBase]: 1/33 cut-off events. [2024-11-10 14:43:02,222 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:43:02,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:02,222 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] [2024-11-10 14:43:02,222 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-10 14:43:02,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:02,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1344068862, now seen corresponding path program 1 times [2024-11-10 14:43:02,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:02,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053531791] [2024-11-10 14:43:02,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:02,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:02,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:02,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:02,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053531791] [2024-11-10 14:43:02,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053531791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:02,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:02,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:02,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2565651] [2024-11-10 14:43:02,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:02,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:02,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:02,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:02,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:02,259 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 165 [2024-11-10 14:43:02,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 165 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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) [2024-11-10 14:43:02,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:02,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 165 [2024-11-10 14:43:02,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:02,371 INFO L124 PetriNetUnfolderBase]: 81/1032 cut-off events. [2024-11-10 14:43:02,371 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-10 14:43:02,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1223 conditions, 1032 events. 81/1032 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6521 event pairs, 78 based on Foata normal form. 39/936 useless extension candidates. Maximal degree in co-relation 880. Up to 162 conditions per place. [2024-11-10 14:43:02,380 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 15 selfloop transitions, 2 changer transitions 1/161 dead transitions. [2024-11-10 14:43:02,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 161 transitions, 372 flow [2024-11-10 14:43:02,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:02,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:02,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2024-11-10 14:43:02,382 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9151515151515152 [2024-11-10 14:43:02,382 INFO L175 Difference]: Start difference. First operand has 165 places, 165 transitions, 346 flow. Second operand 3 states and 453 transitions. [2024-11-10 14:43:02,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 161 transitions, 372 flow [2024-11-10 14:43:02,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 161 transitions, 372 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:02,385 INFO L231 Difference]: Finished difference. Result has 166 places, 160 transitions, 340 flow [2024-11-10 14:43:02,385 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=166, PETRI_TRANSITIONS=160} [2024-11-10 14:43:02,386 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 1 predicate places. [2024-11-10 14:43:02,387 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 160 transitions, 340 flow [2024-11-10 14:43:02,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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) [2024-11-10 14:43:02,387 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:02,388 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] [2024-11-10 14:43:02,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 14:43:02,390 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-10 14:43:02,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:02,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1719671832, now seen corresponding path program 1 times [2024-11-10 14:43:02,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:02,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905890400] [2024-11-10 14:43:02,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:02,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:02,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:02,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:02,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905890400] [2024-11-10 14:43:02,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905890400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:02,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:02,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:02,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067389059] [2024-11-10 14:43:02,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:02,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:02,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:02,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:02,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:02,433 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 165 [2024-11-10 14:43:02,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 160 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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) [2024-11-10 14:43:02,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:02,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 165 [2024-11-10 14:43:02,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:02,557 INFO L124 PetriNetUnfolderBase]: 132/1106 cut-off events. [2024-11-10 14:43:02,557 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-10 14:43:02,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1389 conditions, 1106 events. 132/1106 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 6935 event pairs, 41 based on Foata normal form. 0/1020 useless extension candidates. Maximal degree in co-relation 1348. Up to 227 conditions per place. [2024-11-10 14:43:02,564 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 20 selfloop transitions, 3 changer transitions 0/165 dead transitions. [2024-11-10 14:43:02,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 165 transitions, 401 flow [2024-11-10 14:43:02,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:02,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 458 transitions. [2024-11-10 14:43:02,567 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9252525252525252 [2024-11-10 14:43:02,567 INFO L175 Difference]: Start difference. First operand has 166 places, 160 transitions, 340 flow. Second operand 3 states and 458 transitions. [2024-11-10 14:43:02,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 165 transitions, 401 flow [2024-11-10 14:43:02,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 165 transitions, 397 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:43:02,569 INFO L231 Difference]: Finished difference. Result has 163 places, 160 transitions, 351 flow [2024-11-10 14:43:02,570 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=351, PETRI_PLACES=163, PETRI_TRANSITIONS=160} [2024-11-10 14:43:02,572 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, -2 predicate places. [2024-11-10 14:43:02,572 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 160 transitions, 351 flow [2024-11-10 14:43:02,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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) [2024-11-10 14:43:02,573 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:02,574 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] [2024-11-10 14:43:02,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 14:43:02,574 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-10 14:43:02,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:02,575 INFO L85 PathProgramCache]: Analyzing trace with hash -15419804, now seen corresponding path program 1 times [2024-11-10 14:43:02,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:02,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758422062] [2024-11-10 14:43:02,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:02,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:02,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:02,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:02,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758422062] [2024-11-10 14:43:02,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758422062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:02,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:02,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:02,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123536173] [2024-11-10 14:43:02,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:02,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:43:02,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:02,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:43:02,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:43:02,894 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 165 [2024-11-10 14:43:02,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 160 transitions, 351 flow. Second operand has 6 states, 6 states have (on average 129.5) internal successors, (777), 6 states have internal predecessors, (777), 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) [2024-11-10 14:43:02,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:02,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 165 [2024-11-10 14:43:02,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:03,509 INFO L124 PetriNetUnfolderBase]: 1884/5531 cut-off events. [2024-11-10 14:43:03,509 INFO L125 PetriNetUnfolderBase]: For 123/123 co-relation queries the response was YES. [2024-11-10 14:43:03,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8873 conditions, 5531 events. 1884/5531 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 49335 event pairs, 750 based on Foata normal form. 0/5041 useless extension candidates. Maximal degree in co-relation 5644. Up to 2663 conditions per place. [2024-11-10 14:43:03,538 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 50 selfloop transitions, 38 changer transitions 0/214 dead transitions. [2024-11-10 14:43:03,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 214 transitions, 640 flow [2024-11-10 14:43:03,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:03,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:03,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 857 transitions. [2024-11-10 14:43:03,540 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8656565656565657 [2024-11-10 14:43:03,540 INFO L175 Difference]: Start difference. First operand has 163 places, 160 transitions, 351 flow. Second operand 6 states and 857 transitions. [2024-11-10 14:43:03,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 214 transitions, 640 flow [2024-11-10 14:43:03,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 214 transitions, 640 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:03,544 INFO L231 Difference]: Finished difference. Result has 173 places, 197 transitions, 605 flow [2024-11-10 14:43:03,545 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=605, PETRI_PLACES=173, PETRI_TRANSITIONS=197} [2024-11-10 14:43:03,545 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 8 predicate places. [2024-11-10 14:43:03,546 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 197 transitions, 605 flow [2024-11-10 14:43:03,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.5) internal successors, (777), 6 states have internal predecessors, (777), 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) [2024-11-10 14:43:03,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:03,546 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:03,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 14:43:03,547 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-10 14:43:03,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:03,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1646205752, now seen corresponding path program 1 times [2024-11-10 14:43:03,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:03,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005358028] [2024-11-10 14:43:03,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:03,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:03,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:03,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:03,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:03,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005358028] [2024-11-10 14:43:03,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005358028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:03,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:03,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:03,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924106917] [2024-11-10 14:43:03,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:03,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 14:43:03,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:03,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 14:43:03,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 14:43:03,676 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 165 [2024-11-10 14:43:03,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 197 transitions, 605 flow. Second operand has 5 states, 5 states have (on average 144.4) internal successors, (722), 5 states have internal predecessors, (722), 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) [2024-11-10 14:43:03,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:03,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 165 [2024-11-10 14:43:03,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:04,139 INFO L124 PetriNetUnfolderBase]: 826/4214 cut-off events. [2024-11-10 14:43:04,139 INFO L125 PetriNetUnfolderBase]: For 428/577 co-relation queries the response was YES. [2024-11-10 14:43:04,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6714 conditions, 4214 events. 826/4214 cut-off events. For 428/577 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 38203 event pairs, 357 based on Foata normal form. 1/3839 useless extension candidates. Maximal degree in co-relation 2811. Up to 1077 conditions per place. [2024-11-10 14:43:04,161 INFO L140 encePairwiseOnDemand]: 157/165 looper letters, 20 selfloop transitions, 2 changer transitions 5/205 dead transitions. [2024-11-10 14:43:04,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 205 transitions, 675 flow [2024-11-10 14:43:04,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:04,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:04,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 886 transitions. [2024-11-10 14:43:04,164 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8949494949494949 [2024-11-10 14:43:04,164 INFO L175 Difference]: Start difference. First operand has 173 places, 197 transitions, 605 flow. Second operand 6 states and 886 transitions. [2024-11-10 14:43:04,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 205 transitions, 675 flow [2024-11-10 14:43:04,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 205 transitions, 675 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:04,170 INFO L231 Difference]: Finished difference. Result has 182 places, 198 transitions, 627 flow [2024-11-10 14:43:04,170 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=605, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=627, PETRI_PLACES=182, PETRI_TRANSITIONS=198} [2024-11-10 14:43:04,171 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 17 predicate places. [2024-11-10 14:43:04,171 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 198 transitions, 627 flow [2024-11-10 14:43:04,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 144.4) internal successors, (722), 5 states have internal predecessors, (722), 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) [2024-11-10 14:43:04,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:04,172 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:04,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 14:43:04,172 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-10 14:43:04,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:04,172 INFO L85 PathProgramCache]: Analyzing trace with hash -380010956, now seen corresponding path program 1 times [2024-11-10 14:43:04,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:04,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419491142] [2024-11-10 14:43:04,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:04,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:04,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:04,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:04,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419491142] [2024-11-10 14:43:04,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419491142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:04,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:04,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:04,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427154209] [2024-11-10 14:43:04,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:04,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:04,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:04,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:04,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:04,230 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 165 [2024-11-10 14:43:04,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 198 transitions, 627 flow. Second operand has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 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) [2024-11-10 14:43:04,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:04,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 165 [2024-11-10 14:43:04,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:04,616 INFO L124 PetriNetUnfolderBase]: 818/3906 cut-off events. [2024-11-10 14:43:04,617 INFO L125 PetriNetUnfolderBase]: For 725/1026 co-relation queries the response was YES. [2024-11-10 14:43:04,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6960 conditions, 3906 events. 818/3906 cut-off events. For 725/1026 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 36816 event pairs, 168 based on Foata normal form. 1/3602 useless extension candidates. Maximal degree in co-relation 6860. Up to 1090 conditions per place. [2024-11-10 14:43:04,639 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 29 selfloop transitions, 10 changer transitions 0/215 dead transitions. [2024-11-10 14:43:04,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 215 transitions, 750 flow [2024-11-10 14:43:04,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:04,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:04,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 463 transitions. [2024-11-10 14:43:04,641 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9353535353535354 [2024-11-10 14:43:04,641 INFO L175 Difference]: Start difference. First operand has 182 places, 198 transitions, 627 flow. Second operand 3 states and 463 transitions. [2024-11-10 14:43:04,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 215 transitions, 750 flow [2024-11-10 14:43:04,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 215 transitions, 738 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 14:43:04,687 INFO L231 Difference]: Finished difference. Result has 179 places, 208 transitions, 703 flow [2024-11-10 14:43:04,687 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=703, PETRI_PLACES=179, PETRI_TRANSITIONS=208} [2024-11-10 14:43:04,687 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 14 predicate places. [2024-11-10 14:43:04,688 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 208 transitions, 703 flow [2024-11-10 14:43:04,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 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) [2024-11-10 14:43:04,688 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:04,688 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] [2024-11-10 14:43:04,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 14:43:04,688 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-10 14:43:04,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:04,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1614304903, now seen corresponding path program 1 times [2024-11-10 14:43:04,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:04,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752933221] [2024-11-10 14:43:04,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:04,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:04,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:04,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:04,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752933221] [2024-11-10 14:43:04,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752933221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:04,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:04,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:04,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482015131] [2024-11-10 14:43:04,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:04,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:04,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:04,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:04,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:04,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 165 [2024-11-10 14:43:04,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 208 transitions, 703 flow. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 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) [2024-11-10 14:43:04,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:04,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 165 [2024-11-10 14:43:04,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:05,333 INFO L124 PetriNetUnfolderBase]: 912/4482 cut-off events. [2024-11-10 14:43:05,333 INFO L125 PetriNetUnfolderBase]: For 1007/1340 co-relation queries the response was YES. [2024-11-10 14:43:05,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8081 conditions, 4482 events. 912/4482 cut-off events. For 1007/1340 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 43909 event pairs, 181 based on Foata normal form. 9/4137 useless extension candidates. Maximal degree in co-relation 4650. Up to 1231 conditions per place. [2024-11-10 14:43:05,354 INFO L140 encePairwiseOnDemand]: 158/165 looper letters, 26 selfloop transitions, 9 changer transitions 0/219 dead transitions. [2024-11-10 14:43:05,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 219 transitions, 819 flow [2024-11-10 14:43:05,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:05,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:05,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 460 transitions. [2024-11-10 14:43:05,356 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9292929292929293 [2024-11-10 14:43:05,356 INFO L175 Difference]: Start difference. First operand has 179 places, 208 transitions, 703 flow. Second operand 3 states and 460 transitions. [2024-11-10 14:43:05,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 219 transitions, 819 flow [2024-11-10 14:43:05,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 219 transitions, 793 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:43:05,365 INFO L231 Difference]: Finished difference. Result has 181 places, 215 transitions, 759 flow [2024-11-10 14:43:05,365 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=759, PETRI_PLACES=181, PETRI_TRANSITIONS=215} [2024-11-10 14:43:05,367 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 16 predicate places. [2024-11-10 14:43:05,367 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 215 transitions, 759 flow [2024-11-10 14:43:05,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 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) [2024-11-10 14:43:05,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:05,368 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:05,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 14:43:05,368 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-10 14:43:05,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:05,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1704544570, now seen corresponding path program 1 times [2024-11-10 14:43:05,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:05,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193451719] [2024-11-10 14:43:05,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:05,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:05,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 14:43:05,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:05,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193451719] [2024-11-10 14:43:05,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193451719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:05,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:05,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:05,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928011705] [2024-11-10 14:43:05,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:05,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:43:05,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:05,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:43:05,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:43:05,689 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 165 [2024-11-10 14:43:05,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 215 transitions, 759 flow. Second operand has 6 states, 6 states have (on average 132.16666666666666) internal successors, (793), 6 states have internal predecessors, (793), 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) [2024-11-10 14:43:05,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:05,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 165 [2024-11-10 14:43:05,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:07,086 INFO L124 PetriNetUnfolderBase]: 3455/12398 cut-off events. [2024-11-10 14:43:07,086 INFO L125 PetriNetUnfolderBase]: For 3172/3396 co-relation queries the response was YES. [2024-11-10 14:43:07,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25380 conditions, 12398 events. 3455/12398 cut-off events. For 3172/3396 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 139789 event pairs, 1206 based on Foata normal form. 8/11532 useless extension candidates. Maximal degree in co-relation 23312. Up to 4790 conditions per place. [2024-11-10 14:43:07,169 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 84 selfloop transitions, 38 changer transitions 0/270 dead transitions. [2024-11-10 14:43:07,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 270 transitions, 1183 flow [2024-11-10 14:43:07,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:07,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:07,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 868 transitions. [2024-11-10 14:43:07,172 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8767676767676768 [2024-11-10 14:43:07,172 INFO L175 Difference]: Start difference. First operand has 181 places, 215 transitions, 759 flow. Second operand 6 states and 868 transitions. [2024-11-10 14:43:07,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 270 transitions, 1183 flow [2024-11-10 14:43:07,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 270 transitions, 1165 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:43:07,191 INFO L231 Difference]: Finished difference. Result has 189 places, 252 transitions, 1059 flow [2024-11-10 14:43:07,192 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=741, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1059, PETRI_PLACES=189, PETRI_TRANSITIONS=252} [2024-11-10 14:43:07,192 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 24 predicate places. [2024-11-10 14:43:07,192 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 252 transitions, 1059 flow [2024-11-10 14:43:07,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.16666666666666) internal successors, (793), 6 states have internal predecessors, (793), 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) [2024-11-10 14:43:07,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:07,193 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] [2024-11-10 14:43:07,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 14:43:07,193 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-10 14:43:07,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:07,194 INFO L85 PathProgramCache]: Analyzing trace with hash 692961672, now seen corresponding path program 1 times [2024-11-10 14:43:07,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:07,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822003402] [2024-11-10 14:43:07,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:07,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:07,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:07,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:07,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822003402] [2024-11-10 14:43:07,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822003402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:07,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:07,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:07,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442638526] [2024-11-10 14:43:07,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:07,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:43:07,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:07,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:43:07,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:43:07,587 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 165 [2024-11-10 14:43:07,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 252 transitions, 1059 flow. Second operand has 6 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 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) [2024-11-10 14:43:07,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:07,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 165 [2024-11-10 14:43:07,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:09,934 INFO L124 PetriNetUnfolderBase]: 6373/20099 cut-off events. [2024-11-10 14:43:09,934 INFO L125 PetriNetUnfolderBase]: For 9925/10256 co-relation queries the response was YES. [2024-11-10 14:43:10,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48878 conditions, 20099 events. 6373/20099 cut-off events. For 9925/10256 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 225632 event pairs, 1628 based on Foata normal form. 12/18709 useless extension candidates. Maximal degree in co-relation 42926. Up to 8149 conditions per place. [2024-11-10 14:43:10,149 INFO L140 encePairwiseOnDemand]: 146/165 looper letters, 139 selfloop transitions, 118 changer transitions 0/407 dead transitions. [2024-11-10 14:43:10,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 407 transitions, 2447 flow [2024-11-10 14:43:10,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:10,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:10,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 894 transitions. [2024-11-10 14:43:10,152 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9030303030303031 [2024-11-10 14:43:10,152 INFO L175 Difference]: Start difference. First operand has 189 places, 252 transitions, 1059 flow. Second operand 6 states and 894 transitions. [2024-11-10 14:43:10,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 407 transitions, 2447 flow [2024-11-10 14:43:10,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 407 transitions, 2315 flow, removed 66 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:10,203 INFO L231 Difference]: Finished difference. Result has 198 places, 364 transitions, 2125 flow [2024-11-10 14:43:10,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=995, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2125, PETRI_PLACES=198, PETRI_TRANSITIONS=364} [2024-11-10 14:43:10,205 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 33 predicate places. [2024-11-10 14:43:10,205 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 364 transitions, 2125 flow [2024-11-10 14:43:10,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 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) [2024-11-10 14:43:10,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:10,206 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:10,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 14:43:10,206 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-10 14:43:10,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:10,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1830028820, now seen corresponding path program 1 times [2024-11-10 14:43:10,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:10,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865364152] [2024-11-10 14:43:10,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:10,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:10,239 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 14:43:10,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:10,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865364152] [2024-11-10 14:43:10,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865364152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:10,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:10,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:10,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558602871] [2024-11-10 14:43:10,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:10,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:10,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:10,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:10,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:10,260 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 165 [2024-11-10 14:43:10,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 364 transitions, 2125 flow. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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) [2024-11-10 14:43:10,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:10,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 165 [2024-11-10 14:43:10,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:11,797 INFO L124 PetriNetUnfolderBase]: 4306/15291 cut-off events. [2024-11-10 14:43:11,798 INFO L125 PetriNetUnfolderBase]: For 11419/13301 co-relation queries the response was YES. [2024-11-10 14:43:11,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41845 conditions, 15291 events. 4306/15291 cut-off events. For 11419/13301 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 174140 event pairs, 356 based on Foata normal form. 12/14606 useless extension candidates. Maximal degree in co-relation 37716. Up to 3717 conditions per place. [2024-11-10 14:43:11,911 INFO L140 encePairwiseOnDemand]: 158/165 looper letters, 28 selfloop transitions, 11 changer transitions 0/374 dead transitions. [2024-11-10 14:43:11,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 374 transitions, 2240 flow [2024-11-10 14:43:11,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:11,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:11,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 459 transitions. [2024-11-10 14:43:11,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9272727272727272 [2024-11-10 14:43:11,913 INFO L175 Difference]: Start difference. First operand has 198 places, 364 transitions, 2125 flow. Second operand 3 states and 459 transitions. [2024-11-10 14:43:11,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 374 transitions, 2240 flow [2024-11-10 14:43:12,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 374 transitions, 2204 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:12,359 INFO L231 Difference]: Finished difference. Result has 202 places, 371 transitions, 2177 flow [2024-11-10 14:43:12,359 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2089, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2177, PETRI_PLACES=202, PETRI_TRANSITIONS=371} [2024-11-10 14:43:12,360 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 37 predicate places. [2024-11-10 14:43:12,361 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 371 transitions, 2177 flow [2024-11-10 14:43:12,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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) [2024-11-10 14:43:12,361 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:12,361 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:12,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 14:43:12,362 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-10 14:43:12,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:12,362 INFO L85 PathProgramCache]: Analyzing trace with hash -424949228, now seen corresponding path program 1 times [2024-11-10 14:43:12,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:12,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696586205] [2024-11-10 14:43:12,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:12,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:43:12,384 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:43:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:43:12,406 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:43:12,407 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:43:12,408 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-10 14:43:12,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-10 14:43:12,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-10 14:43:12,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-10 14:43:12,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-10 14:43:12,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-10 14:43:12,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-11-10 14:43:12,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-10 14:43:12,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-10 14:43:12,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-10 14:43:12,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-10 14:43:12,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-10 14:43:12,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-10 14:43:12,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-10 14:43:12,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-10 14:43:12,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-10 14:43:12,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-10 14:43:12,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-10 14:43:12,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-10 14:43:12,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-10 14:43:12,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 14:43:12,411 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:12,411 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:43:12,411 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-10 14:43:12,444 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 14:43:12,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 205 transitions, 437 flow [2024-11-10 14:43:12,506 INFO L124 PetriNetUnfolderBase]: 21/445 cut-off events. [2024-11-10 14:43:12,506 INFO L125 PetriNetUnfolderBase]: For 19/21 co-relation queries the response was YES. [2024-11-10 14:43:12,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 445 events. 21/445 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1353 event pairs, 1 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 284. Up to 16 conditions per place. [2024-11-10 14:43:12,508 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 205 transitions, 437 flow [2024-11-10 14:43:12,511 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 206 places, 205 transitions, 437 flow [2024-11-10 14:43:12,512 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:43:12,513 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;@632191b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:43:12,513 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-10 14:43:12,515 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:43:12,515 INFO L124 PetriNetUnfolderBase]: 1/33 cut-off events. [2024-11-10 14:43:12,516 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:43:12,516 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:12,516 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] [2024-11-10 14:43:12,516 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:43:12,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:12,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2100090735, now seen corresponding path program 1 times [2024-11-10 14:43:12,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:12,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101018912] [2024-11-10 14:43:12,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:12,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:12,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:12,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:12,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101018912] [2024-11-10 14:43:12,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101018912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:12,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:12,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:12,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831656190] [2024-11-10 14:43:12,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:12,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:12,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:12,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:12,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:12,553 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 205 [2024-11-10 14:43:12,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 205 transitions, 437 flow. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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) [2024-11-10 14:43:12,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:12,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 205 [2024-11-10 14:43:12,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:13,280 INFO L124 PetriNetUnfolderBase]: 656/5135 cut-off events. [2024-11-10 14:43:13,280 INFO L125 PetriNetUnfolderBase]: For 337/337 co-relation queries the response was YES. [2024-11-10 14:43:13,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6346 conditions, 5135 events. 656/5135 cut-off events. For 337/337 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 51549 event pairs, 643 based on Foata normal form. 190/4662 useless extension candidates. Maximal degree in co-relation 4738. Up to 1052 conditions per place. [2024-11-10 14:43:13,303 INFO L140 encePairwiseOnDemand]: 199/205 looper letters, 20 selfloop transitions, 2 changer transitions 1/201 dead transitions. [2024-11-10 14:43:13,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 201 transitions, 473 flow [2024-11-10 14:43:13,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:13,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:13,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 563 transitions. [2024-11-10 14:43:13,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9154471544715447 [2024-11-10 14:43:13,305 INFO L175 Difference]: Start difference. First operand has 206 places, 205 transitions, 437 flow. Second operand 3 states and 563 transitions. [2024-11-10 14:43:13,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 201 transitions, 473 flow [2024-11-10 14:43:13,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 201 transitions, 473 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:13,307 INFO L231 Difference]: Finished difference. Result has 207 places, 200 transitions, 431 flow [2024-11-10 14:43:13,308 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=431, PETRI_PLACES=207, PETRI_TRANSITIONS=200} [2024-11-10 14:43:13,308 INFO L277 CegarLoopForPetriNet]: 206 programPoint places, 1 predicate places. [2024-11-10 14:43:13,308 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 200 transitions, 431 flow [2024-11-10 14:43:13,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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) [2024-11-10 14:43:13,309 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:13,309 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] [2024-11-10 14:43:13,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 14:43:13,309 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:43:13,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:13,309 INFO L85 PathProgramCache]: Analyzing trace with hash 119535576, now seen corresponding path program 1 times [2024-11-10 14:43:13,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:13,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284878288] [2024-11-10 14:43:13,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:13,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:13,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:13,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:13,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284878288] [2024-11-10 14:43:13,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284878288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:13,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:13,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:13,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750622881] [2024-11-10 14:43:13,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:13,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:13,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:13,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:13,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:13,342 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 205 [2024-11-10 14:43:13,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 200 transitions, 431 flow. Second operand has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 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) [2024-11-10 14:43:13,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:13,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 205 [2024-11-10 14:43:13,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:13,999 INFO L124 PetriNetUnfolderBase]: 1275/6818 cut-off events. [2024-11-10 14:43:13,999 INFO L125 PetriNetUnfolderBase]: For 527/527 co-relation queries the response was YES. [2024-11-10 14:43:14,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9016 conditions, 6818 events. 1275/6818 cut-off events. For 527/527 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 69793 event pairs, 437 based on Foata normal form. 0/6308 useless extension candidates. Maximal degree in co-relation 8974. Up to 1872 conditions per place. [2024-11-10 14:43:14,029 INFO L140 encePairwiseOnDemand]: 197/205 looper letters, 29 selfloop transitions, 4 changer transitions 0/208 dead transitions. [2024-11-10 14:43:14,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 208 transitions, 525 flow [2024-11-10 14:43:14,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:14,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:14,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 568 transitions. [2024-11-10 14:43:14,030 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9235772357723577 [2024-11-10 14:43:14,030 INFO L175 Difference]: Start difference. First operand has 207 places, 200 transitions, 431 flow. Second operand 3 states and 568 transitions. [2024-11-10 14:43:14,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 208 transitions, 525 flow [2024-11-10 14:43:14,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 208 transitions, 521 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:43:14,033 INFO L231 Difference]: Finished difference. Result has 203 places, 200 transitions, 447 flow [2024-11-10 14:43:14,034 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=447, PETRI_PLACES=203, PETRI_TRANSITIONS=200} [2024-11-10 14:43:14,034 INFO L277 CegarLoopForPetriNet]: 206 programPoint places, -3 predicate places. [2024-11-10 14:43:14,034 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 200 transitions, 447 flow [2024-11-10 14:43:14,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 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) [2024-11-10 14:43:14,034 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:14,035 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] [2024-11-10 14:43:14,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 14:43:14,035 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:43:14,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:14,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1919964017, now seen corresponding path program 1 times [2024-11-10 14:43:14,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:14,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282958053] [2024-11-10 14:43:14,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:14,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:14,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:14,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:14,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282958053] [2024-11-10 14:43:14,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282958053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:14,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:14,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:14,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942713166] [2024-11-10 14:43:14,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:14,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:43:14,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:14,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:43:14,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:43:14,302 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 205 [2024-11-10 14:43:14,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 200 transitions, 447 flow. Second operand has 6 states, 6 states have (on average 161.5) internal successors, (969), 6 states have internal predecessors, (969), 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) [2024-11-10 14:43:14,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:14,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 205 [2024-11-10 14:43:14,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:20,416 INFO L124 PetriNetUnfolderBase]: 25021/56003 cut-off events. [2024-11-10 14:43:20,416 INFO L125 PetriNetUnfolderBase]: For 2353/2353 co-relation queries the response was YES. [2024-11-10 14:43:20,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93347 conditions, 56003 events. 25021/56003 cut-off events. For 2353/2353 co-relation queries the response was YES. Maximal size of possible extension queue 2059. Compared 638314 event pairs, 11507 based on Foata normal form. 0/51083 useless extension candidates. Maximal degree in co-relation 57507. Up to 31346 conditions per place. [2024-11-10 14:43:20,722 INFO L140 encePairwiseOnDemand]: 186/205 looper letters, 67 selfloop transitions, 54 changer transitions 0/279 dead transitions. [2024-11-10 14:43:20,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 279 transitions, 859 flow [2024-11-10 14:43:20,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:20,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:20,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1082 transitions. [2024-11-10 14:43:20,724 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8796747967479674 [2024-11-10 14:43:20,724 INFO L175 Difference]: Start difference. First operand has 203 places, 200 transitions, 447 flow. Second operand 6 states and 1082 transitions. [2024-11-10 14:43:20,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 279 transitions, 859 flow [2024-11-10 14:43:20,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 279 transitions, 859 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:20,729 INFO L231 Difference]: Finished difference. Result has 213 places, 253 transitions, 805 flow [2024-11-10 14:43:20,729 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=805, PETRI_PLACES=213, PETRI_TRANSITIONS=253} [2024-11-10 14:43:20,729 INFO L277 CegarLoopForPetriNet]: 206 programPoint places, 7 predicate places. [2024-11-10 14:43:20,730 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 253 transitions, 805 flow [2024-11-10 14:43:20,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 161.5) internal successors, (969), 6 states have internal predecessors, (969), 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) [2024-11-10 14:43:20,730 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:20,730 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:20,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 14:43:20,730 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:43:20,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:20,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1778849240, now seen corresponding path program 1 times [2024-11-10 14:43:20,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:20,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745956835] [2024-11-10 14:43:20,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:20,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:20,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:20,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:20,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745956835] [2024-11-10 14:43:20,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745956835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:20,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:20,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:43:20,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996973262] [2024-11-10 14:43:20,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:20,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 14:43:20,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:20,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 14:43:20,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 14:43:20,841 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 205 [2024-11-10 14:43:20,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 253 transitions, 805 flow. Second operand has 5 states, 5 states have (on average 180.4) internal successors, (902), 5 states have internal predecessors, (902), 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) [2024-11-10 14:43:20,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:20,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 205 [2024-11-10 14:43:20,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:24,731 INFO L124 PetriNetUnfolderBase]: 10026/35800 cut-off events. [2024-11-10 14:43:24,731 INFO L125 PetriNetUnfolderBase]: For 4890/6343 co-relation queries the response was YES. [2024-11-10 14:43:24,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59694 conditions, 35800 events. 10026/35800 cut-off events. For 4890/6343 co-relation queries the response was YES. Maximal size of possible extension queue 819. Compared 442519 event pairs, 5453 based on Foata normal form. 1/32572 useless extension candidates. Maximal degree in co-relation 29094. Up to 12805 conditions per place. [2024-11-10 14:43:25,003 INFO L140 encePairwiseOnDemand]: 197/205 looper letters, 24 selfloop transitions, 2 changer transitions 5/261 dead transitions. [2024-11-10 14:43:25,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 261 transitions, 883 flow [2024-11-10 14:43:25,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:43:25,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:43:25,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1106 transitions. [2024-11-10 14:43:25,007 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8991869918699187 [2024-11-10 14:43:25,007 INFO L175 Difference]: Start difference. First operand has 213 places, 253 transitions, 805 flow. Second operand 6 states and 1106 transitions. [2024-11-10 14:43:25,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 261 transitions, 883 flow [2024-11-10 14:43:25,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 261 transitions, 883 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:43:25,047 INFO L231 Difference]: Finished difference. Result has 222 places, 254 transitions, 827 flow [2024-11-10 14:43:25,047 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=827, PETRI_PLACES=222, PETRI_TRANSITIONS=254} [2024-11-10 14:43:25,047 INFO L277 CegarLoopForPetriNet]: 206 programPoint places, 16 predicate places. [2024-11-10 14:43:25,047 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 254 transitions, 827 flow [2024-11-10 14:43:25,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 180.4) internal successors, (902), 5 states have internal predecessors, (902), 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) [2024-11-10 14:43:25,048 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:25,048 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:43:25,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 14:43:25,048 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:43:25,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:25,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1902487398, now seen corresponding path program 1 times [2024-11-10 14:43:25,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:25,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080952358] [2024-11-10 14:43:25,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:25,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:25,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:25,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:25,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080952358] [2024-11-10 14:43:25,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080952358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:25,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:25,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:25,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182969513] [2024-11-10 14:43:25,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:25,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:25,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:25,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:25,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:25,096 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 205 [2024-11-10 14:43:25,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 254 transitions, 827 flow. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 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) [2024-11-10 14:43:25,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:25,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 205 [2024-11-10 14:43:25,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:43:32,965 INFO L124 PetriNetUnfolderBase]: 18749/64001 cut-off events. [2024-11-10 14:43:32,965 INFO L125 PetriNetUnfolderBase]: For 16146/23111 co-relation queries the response was YES. [2024-11-10 14:43:33,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117439 conditions, 64001 events. 18749/64001 cut-off events. For 16146/23111 co-relation queries the response was YES. Maximal size of possible extension queue 2323. Compared 907625 event pairs, 5722 based on Foata normal form. 15/57990 useless extension candidates. Maximal degree in co-relation 117338. Up to 20493 conditions per place. [2024-11-10 14:43:33,589 INFO L140 encePairwiseOnDemand]: 184/205 looper letters, 44 selfloop transitions, 15 changer transitions 0/280 dead transitions. [2024-11-10 14:43:33,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 280 transitions, 1018 flow [2024-11-10 14:43:33,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:43:33,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:43:33,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 572 transitions. [2024-11-10 14:43:33,591 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9300813008130081 [2024-11-10 14:43:33,591 INFO L175 Difference]: Start difference. First operand has 222 places, 254 transitions, 827 flow. Second operand 3 states and 572 transitions. [2024-11-10 14:43:33,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 280 transitions, 1018 flow [2024-11-10 14:43:34,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 280 transitions, 1006 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 14:43:34,051 INFO L231 Difference]: Finished difference. Result has 219 places, 269 transitions, 947 flow [2024-11-10 14:43:34,051 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=947, PETRI_PLACES=219, PETRI_TRANSITIONS=269} [2024-11-10 14:43:34,051 INFO L277 CegarLoopForPetriNet]: 206 programPoint places, 13 predicate places. [2024-11-10 14:43:34,051 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 269 transitions, 947 flow [2024-11-10 14:43:34,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 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) [2024-11-10 14:43:34,052 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:43:34,052 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] [2024-11-10 14:43:34,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 14:43:34,052 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:43:34,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:43:34,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1697749599, now seen corresponding path program 1 times [2024-11-10 14:43:34,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:43:34,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256596073] [2024-11-10 14:43:34,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:43:34,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:43:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:43:34,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:43:34,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:43:34,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256596073] [2024-11-10 14:43:34,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256596073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:43:34,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:43:34,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:43:34,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49532117] [2024-11-10 14:43:34,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:43:34,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:43:34,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:43:34,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:43:34,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:43:34,105 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 205 [2024-11-10 14:43:34,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 269 transitions, 947 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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) [2024-11-10 14:43:34,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:43:34,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 205 [2024-11-10 14:43:34,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand