./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread/queue.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/queue.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 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 10:41:55,652 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 10:41:55,706 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-17 10:41:55,712 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 10:41:55,714 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 10:41:55,735 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 10:41:55,735 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 10:41:55,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 10:41:55,736 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 10:41:55,736 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 10:41:55,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 10:41:55,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 10:41:55,736 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 10:41:55,736 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 10:41:55,736 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 10:41:55,736 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 10:41:55,736 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 10:41:55,736 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 10:41:55,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 10:41:55,736 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 10:41:55,736 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 10:41:55,736 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 10:41:55,736 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-17 10:41:55,737 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 10:41:55,737 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 10:41:55,737 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 10:41:55,737 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 10:41:55,737 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 10:41:55,737 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 10:41:55,737 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 10:41:55,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 10:41:55,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 10:41:55,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 10:41:55,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 10:41:55,737 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 10:41:55,737 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 10:41:55,737 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 10:41:55,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 10:41:55,737 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 10:41:55,737 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 10:41:55,737 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 10:41:55,737 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 10:41:55,737 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 [2025-03-17 10:41:55,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 10:41:55,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 10:41:55,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 10:41:55,946 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 10:41:55,947 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 10:41:55,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/queue.i [2025-03-17 10:41:57,077 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb78e80d9/9cddcb4c8f3c47c9825e6f598ef1e011/FLAGb500e219c [2025-03-17 10:41:57,334 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 10:41:57,335 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue.i [2025-03-17 10:41:57,349 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb78e80d9/9cddcb4c8f3c47c9825e6f598ef1e011/FLAGb500e219c [2025-03-17 10:41:57,359 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb78e80d9/9cddcb4c8f3c47c9825e6f598ef1e011 [2025-03-17 10:41:57,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 10:41:57,362 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 10:41:57,363 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 10:41:57,363 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 10:41:57,366 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 10:41:57,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 10:41:57" (1/1) ... [2025-03-17 10:41:57,367 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d856005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:57, skipping insertion in model container [2025-03-17 10:41:57,368 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 10:41:57" (1/1) ... [2025-03-17 10:41:57,391 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 10:41:57,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 10:41:57,766 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 10:41:57,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 10:41:57,887 INFO L204 MainTranslator]: Completed translation [2025-03-17 10:41:57,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:57 WrapperNode [2025-03-17 10:41:57,888 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 10:41:57,889 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 10:41:57,889 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 10:41:57,890 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 10:41:57,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:57" (1/1) ... [2025-03-17 10:41:57,922 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:57" (1/1) ... [2025-03-17 10:41:57,948 INFO L138 Inliner]: procedures = 274, calls = 107, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 518 [2025-03-17 10:41:57,948 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 10:41:57,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 10:41:57,949 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 10:41:57,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 10:41:57,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:57" (1/1) ... [2025-03-17 10:41:57,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:57" (1/1) ... [2025-03-17 10:41:57,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:57" (1/1) ... [2025-03-17 10:41:57,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:57" (1/1) ... [2025-03-17 10:41:57,979 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:57" (1/1) ... [2025-03-17 10:41:57,981 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:57" (1/1) ... [2025-03-17 10:41:57,983 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:57" (1/1) ... [2025-03-17 10:41:57,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:57" (1/1) ... [2025-03-17 10:41:57,995 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 10:41:57,996 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 10:41:57,996 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 10:41:57,996 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 10:41:57,997 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:57" (1/1) ... [2025-03-17 10:41:58,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 10:41:58,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 10:41:58,026 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) [2025-03-17 10:41:58,029 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 [2025-03-17 10:41:58,046 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-03-17 10:41:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-03-17 10:41:58,046 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-03-17 10:41:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-03-17 10:41:58,046 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-17 10:41:58,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-17 10:41:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-17 10:41:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-17 10:41:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 10:41:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 10:41:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 10:41:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 10:41:58,049 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 10:41:58,161 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 10:41:58,162 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 10:41:58,844 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 10:41:58,844 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 10:41:58,878 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 10:41:58,881 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 10:41:58,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 10:41:58 BoogieIcfgContainer [2025-03-17 10:41:58,882 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 10:41:58,883 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 10:41:58,883 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 10:41:58,887 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 10:41:58,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 10:41:57" (1/3) ... [2025-03-17 10:41:58,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212cae9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 10:41:58, skipping insertion in model container [2025-03-17 10:41:58,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:41:57" (2/3) ... [2025-03-17 10:41:58,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212cae9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 10:41:58, skipping insertion in model container [2025-03-17 10:41:58,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 10:41:58" (3/3) ... [2025-03-17 10:41:58,890 INFO L128 eAbstractionObserver]: Analyzing ICFG queue.i [2025-03-17 10:41:58,900 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 10:41:58,902 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG queue.i that has 3 procedures, 577 locations, 1 initial locations, 2 loop locations, and 42 error locations. [2025-03-17 10:41:58,903 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 10:41:59,036 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-17 10:41:59,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 583 places, 592 transitions, 1198 flow [2025-03-17 10:41:59,281 INFO L124 PetriNetUnfolderBase]: 16/590 cut-off events. [2025-03-17 10:41:59,283 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-17 10:41:59,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 590 events. 16/590 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 779 event pairs, 0 based on Foata normal form. 0/532 useless extension candidates. Maximal degree in co-relation 451. Up to 2 conditions per place. [2025-03-17 10:41:59,298 INFO L82 GeneralOperation]: Start removeDead. Operand has 583 places, 592 transitions, 1198 flow [2025-03-17 10:41:59,307 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 570 places, 577 transitions, 1163 flow [2025-03-17 10:41:59,317 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:41:59,325 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;@27a4b37d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:41:59,326 INFO L334 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2025-03-17 10:41:59,335 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:41:59,335 INFO L124 PetriNetUnfolderBase]: 0/78 cut-off events. [2025-03-17 10:41:59,335 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:41:59,335 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:41:59,336 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:41:59,336 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-03-17 10:41:59,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:41:59,341 INFO L85 PathProgramCache]: Analyzing trace with hash -514428958, now seen corresponding path program 1 times [2025-03-17 10:41:59,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:41:59,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865466885] [2025-03-17 10:41:59,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:41:59,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:41:59,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-17 10:41:59,446 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-17 10:41:59,447 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:41:59,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:41:59,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:41:59,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:41:59,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865466885] [2025-03-17 10:41:59,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865466885] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:41:59,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:41:59,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:41:59,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158121036] [2025-03-17 10:41:59,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:41:59,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:41:59,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:41:59,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:41:59,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:41:59,662 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 592 [2025-03-17 10:41:59,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 570 places, 577 transitions, 1163 flow. Second operand has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 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) [2025-03-17 10:41:59,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:41:59,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 592 [2025-03-17 10:41:59,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:41:59,997 INFO L124 PetriNetUnfolderBase]: 61/1686 cut-off events. [2025-03-17 10:41:59,997 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-03-17 10:42:00,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1781 conditions, 1686 events. 61/1686 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 7637 event pairs, 27 based on Foata normal form. 24/1533 useless extension candidates. Maximal degree in co-relation 1595. Up to 70 conditions per place. [2025-03-17 10:42:00,011 INFO L140 encePairwiseOnDemand]: 585/592 looper letters, 15 selfloop transitions, 2 changer transitions 0/568 dead transitions. [2025-03-17 10:42:00,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 568 transitions, 1179 flow [2025-03-17 10:42:00,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:42:00,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:42:00,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1708 transitions. [2025-03-17 10:42:00,028 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9617117117117117 [2025-03-17 10:42:00,031 INFO L175 Difference]: Start difference. First operand has 570 places, 577 transitions, 1163 flow. Second operand 3 states and 1708 transitions. [2025-03-17 10:42:00,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 568 transitions, 1179 flow [2025-03-17 10:42:00,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 568 transitions, 1174 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 10:42:00,049 INFO L231 Difference]: Finished difference. Result has 564 places, 568 transitions, 1144 flow [2025-03-17 10:42:00,052 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1140, PETRI_DIFFERENCE_MINUEND_PLACES=562, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1144, PETRI_PLACES=564, PETRI_TRANSITIONS=568} [2025-03-17 10:42:00,056 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -6 predicate places. [2025-03-17 10:42:00,056 INFO L471 AbstractCegarLoop]: Abstraction has has 564 places, 568 transitions, 1144 flow [2025-03-17 10:42:00,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 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) [2025-03-17 10:42:00,057 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:00,057 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:00,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 10:42:00,058 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-03-17 10:42:00,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:00,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1491203295, now seen corresponding path program 1 times [2025-03-17 10:42:00,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:00,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288558430] [2025-03-17 10:42:00,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:00,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:00,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-17 10:42:00,092 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-17 10:42:00,092 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:00,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:00,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:42:00,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:00,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288558430] [2025-03-17 10:42:00,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288558430] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:00,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:00,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:42:00,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845663424] [2025-03-17 10:42:00,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:00,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:42:00,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:00,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:42:00,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:42:00,168 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 592 [2025-03-17 10:42:00,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 568 transitions, 1144 flow. Second operand has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 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) [2025-03-17 10:42:00,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:00,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 592 [2025-03-17 10:42:00,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:00,468 INFO L124 PetriNetUnfolderBase]: 69/1960 cut-off events. [2025-03-17 10:42:00,469 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-17 10:42:00,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2053 conditions, 1960 events. 69/1960 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 9594 event pairs, 29 based on Foata normal form. 0/1755 useless extension candidates. Maximal degree in co-relation 1968. Up to 74 conditions per place. [2025-03-17 10:42:00,482 INFO L140 encePairwiseOnDemand]: 589/592 looper letters, 15 selfloop transitions, 2 changer transitions 0/567 dead transitions. [2025-03-17 10:42:00,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 567 transitions, 1176 flow [2025-03-17 10:42:00,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:42:00,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:42:00,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1704 transitions. [2025-03-17 10:42:00,486 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9594594594594594 [2025-03-17 10:42:00,486 INFO L175 Difference]: Start difference. First operand has 564 places, 568 transitions, 1144 flow. Second operand 3 states and 1704 transitions. [2025-03-17 10:42:00,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 567 transitions, 1176 flow [2025-03-17 10:42:00,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 567 transitions, 1172 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:42:00,494 INFO L231 Difference]: Finished difference. Result has 563 places, 567 transitions, 1142 flow [2025-03-17 10:42:00,495 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1138, PETRI_DIFFERENCE_MINUEND_PLACES=561, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1142, PETRI_PLACES=563, PETRI_TRANSITIONS=567} [2025-03-17 10:42:00,495 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -7 predicate places. [2025-03-17 10:42:00,495 INFO L471 AbstractCegarLoop]: Abstraction has has 563 places, 567 transitions, 1142 flow [2025-03-17 10:42:00,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 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) [2025-03-17 10:42:00,497 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:00,497 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:00,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 10:42:00,497 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-03-17 10:42:00,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:00,498 INFO L85 PathProgramCache]: Analyzing trace with hash 685420964, now seen corresponding path program 1 times [2025-03-17 10:42:00,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:00,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775433622] [2025-03-17 10:42:00,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:00,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:00,511 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-03-17 10:42:00,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-03-17 10:42:00,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:00,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:01,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:42:01,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:01,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775433622] [2025-03-17 10:42:01,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775433622] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:01,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:01,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:42:01,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193191367] [2025-03-17 10:42:01,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:01,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:42:01,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:01,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:42:01,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:42:01,896 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 592 [2025-03-17 10:42:01,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 567 transitions, 1142 flow. Second operand has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 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) [2025-03-17 10:42:01,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:01,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 592 [2025-03-17 10:42:01,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:04,060 INFO L124 PetriNetUnfolderBase]: 3671/15096 cut-off events. [2025-03-17 10:42:04,060 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2025-03-17 10:42:04,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22144 conditions, 15096 events. 3671/15096 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 136917 event pairs, 3314 based on Foata normal form. 0/13635 useless extension candidates. Maximal degree in co-relation 22055. Up to 6868 conditions per place. [2025-03-17 10:42:04,132 INFO L140 encePairwiseOnDemand]: 586/592 looper letters, 138 selfloop transitions, 5 changer transitions 0/566 dead transitions. [2025-03-17 10:42:04,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 566 transitions, 1426 flow [2025-03-17 10:42:04,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:42:04,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:42:04,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2766 transitions. [2025-03-17 10:42:04,139 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7787162162162162 [2025-03-17 10:42:04,139 INFO L175 Difference]: Start difference. First operand has 563 places, 567 transitions, 1142 flow. Second operand 6 states and 2766 transitions. [2025-03-17 10:42:04,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 566 transitions, 1426 flow [2025-03-17 10:42:04,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 566 transitions, 1422 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:42:04,146 INFO L231 Difference]: Finished difference. Result has 565 places, 566 transitions, 1146 flow [2025-03-17 10:42:04,147 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=561, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1146, PETRI_PLACES=565, PETRI_TRANSITIONS=566} [2025-03-17 10:42:04,148 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -5 predicate places. [2025-03-17 10:42:04,148 INFO L471 AbstractCegarLoop]: Abstraction has has 565 places, 566 transitions, 1146 flow [2025-03-17 10:42:04,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 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) [2025-03-17 10:42:04,150 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:04,150 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:04,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 10:42:04,150 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-03-17 10:42:04,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:04,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1760259171, now seen corresponding path program 1 times [2025-03-17 10:42:04,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:04,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602663129] [2025-03-17 10:42:04,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:04,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:04,163 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-17 10:42:04,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-17 10:42:04,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:04,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:04,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:42:04,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:04,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602663129] [2025-03-17 10:42:04,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602663129] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:04,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:04,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:42:04,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362170749] [2025-03-17 10:42:04,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:04,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:42:04,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:04,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:42:04,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:42:05,400 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 592 [2025-03-17 10:42:05,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 566 transitions, 1146 flow. Second operand has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 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) [2025-03-17 10:42:05,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:05,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 592 [2025-03-17 10:42:05,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:07,269 INFO L124 PetriNetUnfolderBase]: 3671/15095 cut-off events. [2025-03-17 10:42:07,270 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2025-03-17 10:42:07,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22146 conditions, 15095 events. 3671/15095 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 136782 event pairs, 3314 based on Foata normal form. 0/13635 useless extension candidates. Maximal degree in co-relation 22041. Up to 6868 conditions per place. [2025-03-17 10:42:07,336 INFO L140 encePairwiseOnDemand]: 586/592 looper letters, 138 selfloop transitions, 5 changer transitions 0/565 dead transitions. [2025-03-17 10:42:07,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 565 transitions, 1430 flow [2025-03-17 10:42:07,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:42:07,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:42:07,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2766 transitions. [2025-03-17 10:42:07,342 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7787162162162162 [2025-03-17 10:42:07,342 INFO L175 Difference]: Start difference. First operand has 565 places, 566 transitions, 1146 flow. Second operand 6 states and 2766 transitions. [2025-03-17 10:42:07,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 569 places, 565 transitions, 1430 flow [2025-03-17 10:42:07,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 565 transitions, 1420 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-17 10:42:07,349 INFO L231 Difference]: Finished difference. Result has 564 places, 565 transitions, 1144 flow [2025-03-17 10:42:07,350 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1144, PETRI_PLACES=564, PETRI_TRANSITIONS=565} [2025-03-17 10:42:07,351 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -6 predicate places. [2025-03-17 10:42:07,351 INFO L471 AbstractCegarLoop]: Abstraction has has 564 places, 565 transitions, 1144 flow [2025-03-17 10:42:07,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 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) [2025-03-17 10:42:07,353 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:07,353 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:07,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 10:42:07,354 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-03-17 10:42:07,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:07,354 INFO L85 PathProgramCache]: Analyzing trace with hash 931970828, now seen corresponding path program 1 times [2025-03-17 10:42:07,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:07,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034133923] [2025-03-17 10:42:07,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:07,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:07,370 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-17 10:42:07,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-17 10:42:07,381 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:07,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:07,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:42:07,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:07,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034133923] [2025-03-17 10:42:07,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034133923] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:07,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:07,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:42:07,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677772627] [2025-03-17 10:42:07,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:07,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:42:07,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:07,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:42:07,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:42:08,261 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 592 [2025-03-17 10:42:08,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 565 transitions, 1144 flow. Second operand has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 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) [2025-03-17 10:42:08,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:08,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 592 [2025-03-17 10:42:08,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:10,707 INFO L124 PetriNetUnfolderBase]: 3671/15094 cut-off events. [2025-03-17 10:42:10,707 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2025-03-17 10:42:10,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22145 conditions, 15094 events. 3671/15094 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 136908 event pairs, 3314 based on Foata normal form. 0/13635 useless extension candidates. Maximal degree in co-relation 22032. Up to 6868 conditions per place. [2025-03-17 10:42:10,765 INFO L140 encePairwiseOnDemand]: 586/592 looper letters, 138 selfloop transitions, 5 changer transitions 0/564 dead transitions. [2025-03-17 10:42:10,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 564 transitions, 1428 flow [2025-03-17 10:42:10,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:42:10,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:42:10,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2766 transitions. [2025-03-17 10:42:10,770 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7787162162162162 [2025-03-17 10:42:10,770 INFO L175 Difference]: Start difference. First operand has 564 places, 565 transitions, 1144 flow. Second operand 6 states and 2766 transitions. [2025-03-17 10:42:10,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 564 transitions, 1428 flow [2025-03-17 10:42:10,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 564 transitions, 1418 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-17 10:42:10,777 INFO L231 Difference]: Finished difference. Result has 563 places, 564 transitions, 1142 flow [2025-03-17 10:42:10,778 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1132, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=559, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1142, PETRI_PLACES=563, PETRI_TRANSITIONS=564} [2025-03-17 10:42:10,779 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -7 predicate places. [2025-03-17 10:42:10,779 INFO L471 AbstractCegarLoop]: Abstraction has has 563 places, 564 transitions, 1142 flow [2025-03-17 10:42:10,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 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) [2025-03-17 10:42:10,780 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:10,780 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:10,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 10:42:10,781 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-03-17 10:42:10,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:10,781 INFO L85 PathProgramCache]: Analyzing trace with hash 92200167, now seen corresponding path program 1 times [2025-03-17 10:42:10,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:10,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529372260] [2025-03-17 10:42:10,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:10,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:10,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-17 10:42:10,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-17 10:42:10,805 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:10,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:11,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 10:42:11,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:11,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529372260] [2025-03-17 10:42:11,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529372260] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:11,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:11,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:42:11,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482469600] [2025-03-17 10:42:11,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:11,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:42:11,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:11,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:42:11,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:42:12,039 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 592 [2025-03-17 10:42:12,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 564 transitions, 1142 flow. Second operand has 6 states, 6 states have (on average 502.1666666666667) internal successors, (3013), 6 states have internal predecessors, (3013), 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) [2025-03-17 10:42:12,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:12,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 592 [2025-03-17 10:42:12,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:12,701 INFO L124 PetriNetUnfolderBase]: 831/5612 cut-off events. [2025-03-17 10:42:12,702 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-03-17 10:42:12,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7190 conditions, 5612 events. 831/5612 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 45194 event pairs, 674 based on Foata normal form. 0/5003 useless extension candidates. Maximal degree in co-relation 7059. Up to 1475 conditions per place. [2025-03-17 10:42:12,730 INFO L140 encePairwiseOnDemand]: 586/592 looper letters, 76 selfloop transitions, 5 changer transitions 0/563 dead transitions. [2025-03-17 10:42:12,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 563 transitions, 1302 flow [2025-03-17 10:42:12,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:42:12,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:42:12,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3076 transitions. [2025-03-17 10:42:12,736 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.865990990990991 [2025-03-17 10:42:12,736 INFO L175 Difference]: Start difference. First operand has 563 places, 564 transitions, 1142 flow. Second operand 6 states and 3076 transitions. [2025-03-17 10:42:12,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 563 transitions, 1302 flow [2025-03-17 10:42:12,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 563 transitions, 1292 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-17 10:42:12,744 INFO L231 Difference]: Finished difference. Result has 562 places, 563 transitions, 1140 flow [2025-03-17 10:42:12,745 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1130, PETRI_DIFFERENCE_MINUEND_PLACES=557, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=563, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1140, PETRI_PLACES=562, PETRI_TRANSITIONS=563} [2025-03-17 10:42:12,746 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -8 predicate places. [2025-03-17 10:42:12,746 INFO L471 AbstractCegarLoop]: Abstraction has has 562 places, 563 transitions, 1140 flow [2025-03-17 10:42:12,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 502.1666666666667) internal successors, (3013), 6 states have internal predecessors, (3013), 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) [2025-03-17 10:42:12,747 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:12,748 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:12,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 10:42:12,748 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-03-17 10:42:12,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:12,748 INFO L85 PathProgramCache]: Analyzing trace with hash -410972120, now seen corresponding path program 1 times [2025-03-17 10:42:12,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:12,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839451588] [2025-03-17 10:42:12,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:12,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:12,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-17 10:42:12,775 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-17 10:42:12,775 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:12,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:13,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 10:42:13,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:13,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839451588] [2025-03-17 10:42:13,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839451588] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:13,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:13,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:42:13,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838503541] [2025-03-17 10:42:13,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:13,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:42:13,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:13,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:42:13,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:42:13,807 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 592 [2025-03-17 10:42:13,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 562 places, 563 transitions, 1140 flow. Second operand has 6 states, 6 states have (on average 502.1666666666667) internal successors, (3013), 6 states have internal predecessors, (3013), 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) [2025-03-17 10:42:13,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:13,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 592 [2025-03-17 10:42:13,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:14,367 INFO L124 PetriNetUnfolderBase]: 831/5611 cut-off events. [2025-03-17 10:42:14,367 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-03-17 10:42:14,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7189 conditions, 5611 events. 831/5611 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 45170 event pairs, 674 based on Foata normal form. 0/5003 useless extension candidates. Maximal degree in co-relation 7020. Up to 1475 conditions per place. [2025-03-17 10:42:14,389 INFO L140 encePairwiseOnDemand]: 586/592 looper letters, 76 selfloop transitions, 5 changer transitions 0/562 dead transitions. [2025-03-17 10:42:14,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 562 transitions, 1300 flow [2025-03-17 10:42:14,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:42:14,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:42:14,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3076 transitions. [2025-03-17 10:42:14,393 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.865990990990991 [2025-03-17 10:42:14,393 INFO L175 Difference]: Start difference. First operand has 562 places, 563 transitions, 1140 flow. Second operand 6 states and 3076 transitions. [2025-03-17 10:42:14,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 562 transitions, 1300 flow [2025-03-17 10:42:14,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 562 transitions, 1290 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-17 10:42:14,399 INFO L231 Difference]: Finished difference. Result has 561 places, 562 transitions, 1138 flow [2025-03-17 10:42:14,400 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1128, PETRI_DIFFERENCE_MINUEND_PLACES=556, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1138, PETRI_PLACES=561, PETRI_TRANSITIONS=562} [2025-03-17 10:42:14,400 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -9 predicate places. [2025-03-17 10:42:14,400 INFO L471 AbstractCegarLoop]: Abstraction has has 561 places, 562 transitions, 1138 flow [2025-03-17 10:42:14,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 502.1666666666667) internal successors, (3013), 6 states have internal predecessors, (3013), 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) [2025-03-17 10:42:14,402 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:14,402 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:14,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 10:42:14,402 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-03-17 10:42:14,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:14,403 INFO L85 PathProgramCache]: Analyzing trace with hash -695849081, now seen corresponding path program 1 times [2025-03-17 10:42:14,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:14,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257813604] [2025-03-17 10:42:14,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:14,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:14,419 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-17 10:42:14,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-17 10:42:14,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:14,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:14,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-17 10:42:14,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:14,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257813604] [2025-03-17 10:42:14,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257813604] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:14,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:14,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:42:14,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282489979] [2025-03-17 10:42:14,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:14,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:42:14,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:14,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:42:14,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:42:14,503 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 592 [2025-03-17 10:42:14,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 562 transitions, 1138 flow. Second operand has 3 states, 3 states have (on average 568.0) internal successors, (1704), 3 states have internal predecessors, (1704), 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) [2025-03-17 10:42:14,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:14,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 592 [2025-03-17 10:42:14,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:14,759 INFO L124 PetriNetUnfolderBase]: 114/2678 cut-off events. [2025-03-17 10:42:14,759 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2025-03-17 10:42:14,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2845 conditions, 2678 events. 114/2678 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 13936 event pairs, 25 based on Foata normal form. 0/2382 useless extension candidates. Maximal degree in co-relation 2695. Up to 88 conditions per place. [2025-03-17 10:42:14,777 INFO L140 encePairwiseOnDemand]: 587/592 looper letters, 22 selfloop transitions, 4 changer transitions 0/573 dead transitions. [2025-03-17 10:42:14,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 573 transitions, 1213 flow [2025-03-17 10:42:14,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:42:14,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:42:14,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1725 transitions. [2025-03-17 10:42:14,780 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9712837837837838 [2025-03-17 10:42:14,780 INFO L175 Difference]: Start difference. First operand has 561 places, 562 transitions, 1138 flow. Second operand 3 states and 1725 transitions. [2025-03-17 10:42:14,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 573 transitions, 1213 flow [2025-03-17 10:42:14,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 558 places, 573 transitions, 1203 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-17 10:42:14,790 INFO L231 Difference]: Finished difference. Result has 560 places, 566 transitions, 1162 flow [2025-03-17 10:42:14,791 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1128, PETRI_DIFFERENCE_MINUEND_PLACES=556, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1162, PETRI_PLACES=560, PETRI_TRANSITIONS=566} [2025-03-17 10:42:14,793 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -10 predicate places. [2025-03-17 10:42:14,793 INFO L471 AbstractCegarLoop]: Abstraction has has 560 places, 566 transitions, 1162 flow [2025-03-17 10:42:14,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 568.0) internal successors, (1704), 3 states have internal predecessors, (1704), 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) [2025-03-17 10:42:14,795 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:14,795 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:14,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 10:42:14,795 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err22ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-03-17 10:42:14,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:14,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1786319139, now seen corresponding path program 1 times [2025-03-17 10:42:14,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:14,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811139188] [2025-03-17 10:42:14,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:14,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:14,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-17 10:42:14,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-17 10:42:14,826 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:14,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:15,163 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-17 10:42:15,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:15,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811139188] [2025-03-17 10:42:15,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811139188] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:15,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:15,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:42:15,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18235062] [2025-03-17 10:42:15,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:15,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:42:15,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:15,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:42:15,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:42:16,038 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 592 [2025-03-17 10:42:16,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 566 transitions, 1162 flow. Second operand has 6 states, 6 states have (on average 473.5) internal successors, (2841), 6 states have internal predecessors, (2841), 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) [2025-03-17 10:42:16,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:16,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 592 [2025-03-17 10:42:16,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:18,060 INFO L124 PetriNetUnfolderBase]: 3091/15503 cut-off events. [2025-03-17 10:42:18,061 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2025-03-17 10:42:18,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21715 conditions, 15503 events. 3091/15503 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 144227 event pairs, 1173 based on Foata normal form. 0/13921 useless extension candidates. Maximal degree in co-relation 20891. Up to 4480 conditions per place. [2025-03-17 10:42:18,122 INFO L140 encePairwiseOnDemand]: 538/592 looper letters, 125 selfloop transitions, 84 changer transitions 0/664 dead transitions. [2025-03-17 10:42:18,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 664 transitions, 1784 flow [2025-03-17 10:42:18,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:42:18,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:42:18,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3035 transitions. [2025-03-17 10:42:18,126 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8544481981981982 [2025-03-17 10:42:18,126 INFO L175 Difference]: Start difference. First operand has 560 places, 566 transitions, 1162 flow. Second operand 6 states and 3035 transitions. [2025-03-17 10:42:18,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 664 transitions, 1784 flow [2025-03-17 10:42:18,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 664 transitions, 1776 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:42:18,136 INFO L231 Difference]: Finished difference. Result has 568 places, 646 transitions, 1750 flow [2025-03-17 10:42:18,137 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1154, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1750, PETRI_PLACES=568, PETRI_TRANSITIONS=646} [2025-03-17 10:42:18,138 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -2 predicate places. [2025-03-17 10:42:18,138 INFO L471 AbstractCegarLoop]: Abstraction has has 568 places, 646 transitions, 1750 flow [2025-03-17 10:42:18,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 473.5) internal successors, (2841), 6 states have internal predecessors, (2841), 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) [2025-03-17 10:42:18,139 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:18,139 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:18,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 10:42:18,140 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-03-17 10:42:18,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:18,140 INFO L85 PathProgramCache]: Analyzing trace with hash 453761296, now seen corresponding path program 1 times [2025-03-17 10:42:18,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:18,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707936738] [2025-03-17 10:42:18,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:18,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:18,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-03-17 10:42:18,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-03-17 10:42:18,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:18,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:18,312 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-17 10:42:18,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:18,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707936738] [2025-03-17 10:42:18,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707936738] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:18,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:18,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 10:42:18,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151575775] [2025-03-17 10:42:18,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:18,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:42:18,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:18,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:42:18,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:42:18,324 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 567 out of 592 [2025-03-17 10:42:18,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 646 transitions, 1750 flow. Second operand has 3 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 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) [2025-03-17 10:42:18,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:18,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 567 of 592 [2025-03-17 10:42:18,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:19,444 INFO L124 PetriNetUnfolderBase]: 991/8750 cut-off events. [2025-03-17 10:42:19,445 INFO L125 PetriNetUnfolderBase]: For 621/633 co-relation queries the response was YES. [2025-03-17 10:42:19,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12490 conditions, 8750 events. 991/8750 cut-off events. For 621/633 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 73887 event pairs, 110 based on Foata normal form. 24/7986 useless extension candidates. Maximal degree in co-relation 11810. Up to 966 conditions per place. [2025-03-17 10:42:19,488 INFO L140 encePairwiseOnDemand]: 588/592 looper letters, 18 selfloop transitions, 3 changer transitions 0/634 dead transitions. [2025-03-17 10:42:19,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 634 transitions, 1719 flow [2025-03-17 10:42:19,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:42:19,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:42:19,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1723 transitions. [2025-03-17 10:42:19,491 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9701576576576577 [2025-03-17 10:42:19,491 INFO L175 Difference]: Start difference. First operand has 568 places, 646 transitions, 1750 flow. Second operand 3 states and 1723 transitions. [2025-03-17 10:42:19,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 634 transitions, 1719 flow [2025-03-17 10:42:19,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 567 places, 634 transitions, 1705 flow, removed 7 selfloop flow, removed 0 redundant places. [2025-03-17 10:42:19,504 INFO L231 Difference]: Finished difference. Result has 568 places, 628 transitions, 1661 flow [2025-03-17 10:42:19,505 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1646, PETRI_DIFFERENCE_MINUEND_PLACES=565, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=627, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=624, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1661, PETRI_PLACES=568, PETRI_TRANSITIONS=628} [2025-03-17 10:42:19,506 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, -2 predicate places. [2025-03-17 10:42:19,506 INFO L471 AbstractCegarLoop]: Abstraction has has 568 places, 628 transitions, 1661 flow [2025-03-17 10:42:19,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 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) [2025-03-17 10:42:19,507 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:19,507 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:19,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 10:42:19,507 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-03-17 10:42:19,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:19,508 INFO L85 PathProgramCache]: Analyzing trace with hash -148255528, now seen corresponding path program 1 times [2025-03-17 10:42:19,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:19,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574873187] [2025-03-17 10:42:19,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:19,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:19,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 171 statements into 1 equivalence classes. [2025-03-17 10:42:19,529 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 171 of 171 statements. [2025-03-17 10:42:19,529 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:19,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:19,808 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-17 10:42:19,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:19,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574873187] [2025-03-17 10:42:19,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574873187] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:19,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:19,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:42:19,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759670027] [2025-03-17 10:42:19,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:19,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:42:19,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:19,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:42:19,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:42:20,410 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 592 [2025-03-17 10:42:20,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 628 transitions, 1661 flow. Second operand has 6 states, 6 states have (on average 423.8333333333333) internal successors, (2543), 6 states have internal predecessors, (2543), 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) [2025-03-17 10:42:20,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:20,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 592 [2025-03-17 10:42:20,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:24,779 INFO L124 PetriNetUnfolderBase]: 6038/22406 cut-off events. [2025-03-17 10:42:24,779 INFO L125 PetriNetUnfolderBase]: For 4253/4484 co-relation queries the response was YES. [2025-03-17 10:42:24,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40984 conditions, 22406 events. 6038/22406 cut-off events. For 4253/4484 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 221985 event pairs, 3626 based on Foata normal form. 30/20391 useless extension candidates. Maximal degree in co-relation 39596. Up to 11092 conditions per place. [2025-03-17 10:42:24,890 INFO L140 encePairwiseOnDemand]: 543/592 looper letters, 228 selfloop transitions, 156 changer transitions 0/788 dead transitions. [2025-03-17 10:42:24,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 572 places, 788 transitions, 2853 flow [2025-03-17 10:42:24,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:42:24,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:42:24,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2833 transitions. [2025-03-17 10:42:24,894 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7975788288288288 [2025-03-17 10:42:24,894 INFO L175 Difference]: Start difference. First operand has 568 places, 628 transitions, 1661 flow. Second operand 6 states and 2833 transitions. [2025-03-17 10:42:24,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 572 places, 788 transitions, 2853 flow [2025-03-17 10:42:24,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 571 places, 788 transitions, 2850 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 10:42:24,911 INFO L231 Difference]: Finished difference. Result has 576 places, 776 transitions, 2758 flow [2025-03-17 10:42:24,912 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1656, PETRI_DIFFERENCE_MINUEND_PLACES=566, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=627, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=579, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2758, PETRI_PLACES=576, PETRI_TRANSITIONS=776} [2025-03-17 10:42:24,912 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, 6 predicate places. [2025-03-17 10:42:24,912 INFO L471 AbstractCegarLoop]: Abstraction has has 576 places, 776 transitions, 2758 flow [2025-03-17 10:42:24,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 423.8333333333333) internal successors, (2543), 6 states have internal predecessors, (2543), 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) [2025-03-17 10:42:24,913 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:24,913 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:24,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 10:42:24,914 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-03-17 10:42:24,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:24,914 INFO L85 PathProgramCache]: Analyzing trace with hash -185267748, now seen corresponding path program 1 times [2025-03-17 10:42:24,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:24,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905733084] [2025-03-17 10:42:24,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:24,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:24,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-03-17 10:42:24,936 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-03-17 10:42:24,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:24,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:25,211 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-17 10:42:25,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:25,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905733084] [2025-03-17 10:42:25,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905733084] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:25,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:25,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:42:25,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748067630] [2025-03-17 10:42:25,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:25,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:42:25,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:25,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:42:25,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:42:26,071 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 504 out of 592 [2025-03-17 10:42:26,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 576 places, 776 transitions, 2758 flow. Second operand has 6 states, 6 states have (on average 508.1666666666667) internal successors, (3049), 6 states have internal predecessors, (3049), 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) [2025-03-17 10:42:26,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:26,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 504 of 592 [2025-03-17 10:42:26,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:28,456 INFO L124 PetriNetUnfolderBase]: 2728/14438 cut-off events. [2025-03-17 10:42:28,457 INFO L125 PetriNetUnfolderBase]: For 4533/5214 co-relation queries the response was YES. [2025-03-17 10:42:28,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27450 conditions, 14438 events. 2728/14438 cut-off events. For 4533/5214 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 139990 event pairs, 749 based on Foata normal form. 51/13197 useless extension candidates. Maximal degree in co-relation 26423. Up to 3595 conditions per place. [2025-03-17 10:42:28,526 INFO L140 encePairwiseOnDemand]: 567/592 looper letters, 182 selfloop transitions, 59 changer transitions 0/840 dead transitions. [2025-03-17 10:42:28,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 580 places, 840 transitions, 3568 flow [2025-03-17 10:42:28,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:42:28,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:42:28,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3167 transitions. [2025-03-17 10:42:28,529 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8916103603603603 [2025-03-17 10:42:28,529 INFO L175 Difference]: Start difference. First operand has 576 places, 776 transitions, 2758 flow. Second operand 6 states and 3167 transitions. [2025-03-17 10:42:28,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 580 places, 840 transitions, 3568 flow [2025-03-17 10:42:28,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 580 places, 840 transitions, 3472 flow, removed 48 selfloop flow, removed 0 redundant places. [2025-03-17 10:42:28,554 INFO L231 Difference]: Finished difference. Result has 585 places, 828 transitions, 3230 flow [2025-03-17 10:42:28,555 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=2660, PETRI_DIFFERENCE_MINUEND_PLACES=575, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=775, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=752, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3230, PETRI_PLACES=585, PETRI_TRANSITIONS=828} [2025-03-17 10:42:28,556 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, 15 predicate places. [2025-03-17 10:42:28,556 INFO L471 AbstractCegarLoop]: Abstraction has has 585 places, 828 transitions, 3230 flow [2025-03-17 10:42:28,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 508.1666666666667) internal successors, (3049), 6 states have internal predecessors, (3049), 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) [2025-03-17 10:42:28,557 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:28,557 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:28,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 10:42:28,557 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err19ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-03-17 10:42:28,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:28,558 INFO L85 PathProgramCache]: Analyzing trace with hash 707155808, now seen corresponding path program 1 times [2025-03-17 10:42:28,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:28,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907605352] [2025-03-17 10:42:28,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:28,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:28,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-03-17 10:42:28,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-03-17 10:42:28,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:28,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:28,892 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-17 10:42:28,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:28,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907605352] [2025-03-17 10:42:28,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907605352] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:28,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:28,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:42:28,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582070912] [2025-03-17 10:42:28,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:28,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:42:28,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:28,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:42:28,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:42:29,626 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 592 [2025-03-17 10:42:29,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 585 places, 828 transitions, 3230 flow. Second operand has 6 states, 6 states have (on average 466.5) internal successors, (2799), 6 states have internal predecessors, (2799), 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) [2025-03-17 10:42:29,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:29,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 592 [2025-03-17 10:42:29,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:33,886 INFO L124 PetriNetUnfolderBase]: 4710/19221 cut-off events. [2025-03-17 10:42:33,886 INFO L125 PetriNetUnfolderBase]: For 8474/8808 co-relation queries the response was YES. [2025-03-17 10:42:33,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41220 conditions, 19221 events. 4710/19221 cut-off events. For 8474/8808 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 188991 event pairs, 1581 based on Foata normal form. 59/17632 useless extension candidates. Maximal degree in co-relation 40081. Up to 7811 conditions per place. [2025-03-17 10:42:33,998 INFO L140 encePairwiseOnDemand]: 543/592 looper letters, 374 selfloop transitions, 156 changer transitions 0/988 dead transitions. [2025-03-17 10:42:33,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 589 places, 988 transitions, 5098 flow [2025-03-17 10:42:33,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:42:33,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:42:34,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3043 transitions. [2025-03-17 10:42:34,002 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8567004504504504 [2025-03-17 10:42:34,002 INFO L175 Difference]: Start difference. First operand has 585 places, 828 transitions, 3230 flow. Second operand 6 states and 3043 transitions. [2025-03-17 10:42:34,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 589 places, 988 transitions, 5098 flow [2025-03-17 10:42:34,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 589 places, 988 transitions, 5002 flow, removed 48 selfloop flow, removed 0 redundant places. [2025-03-17 10:42:34,040 INFO L231 Difference]: Finished difference. Result has 594 places, 976 transitions, 4618 flow [2025-03-17 10:42:34,041 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=3132, PETRI_DIFFERENCE_MINUEND_PLACES=584, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=827, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=779, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4618, PETRI_PLACES=594, PETRI_TRANSITIONS=976} [2025-03-17 10:42:34,042 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, 24 predicate places. [2025-03-17 10:42:34,042 INFO L471 AbstractCegarLoop]: Abstraction has has 594 places, 976 transitions, 4618 flow [2025-03-17 10:42:34,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 466.5) internal successors, (2799), 6 states have internal predecessors, (2799), 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) [2025-03-17 10:42:34,043 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:34,043 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:34,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 10:42:34,044 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-03-17 10:42:34,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:34,044 INFO L85 PathProgramCache]: Analyzing trace with hash 954064111, now seen corresponding path program 1 times [2025-03-17 10:42:34,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:34,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686994670] [2025-03-17 10:42:34,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:34,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:34,065 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 205 statements into 1 equivalence classes. [2025-03-17 10:42:34,075 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 205 of 205 statements. [2025-03-17 10:42:34,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:34,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:34,551 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-17 10:42:34,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:34,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686994670] [2025-03-17 10:42:34,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686994670] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:34,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:34,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:42:34,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124938218] [2025-03-17 10:42:34,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:34,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:42:34,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:34,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:42:34,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:42:35,018 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 592 [2025-03-17 10:42:35,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 976 transitions, 4618 flow. Second operand has 6 states, 6 states have (on average 437.3333333333333) internal successors, (2624), 6 states have internal predecessors, (2624), 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) [2025-03-17 10:42:35,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:35,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 592 [2025-03-17 10:42:35,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:40,750 INFO L124 PetriNetUnfolderBase]: 7085/25823 cut-off events. [2025-03-17 10:42:40,751 INFO L125 PetriNetUnfolderBase]: For 19033/19451 co-relation queries the response was YES. [2025-03-17 10:42:40,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63028 conditions, 25823 events. 7085/25823 cut-off events. For 19033/19451 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 262004 event pairs, 2895 based on Foata normal form. 58/23776 useless extension candidates. Maximal degree in co-relation 61630. Up to 11984 conditions per place. [2025-03-17 10:42:40,921 INFO L140 encePairwiseOnDemand]: 543/592 looper letters, 558 selfloop transitions, 156 changer transitions 0/1136 dead transitions. [2025-03-17 10:42:40,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 598 places, 1136 transitions, 7142 flow [2025-03-17 10:42:40,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:42:40,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:42:40,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2893 transitions. [2025-03-17 10:42:40,925 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8144707207207207 [2025-03-17 10:42:40,925 INFO L175 Difference]: Start difference. First operand has 594 places, 976 transitions, 4618 flow. Second operand 6 states and 2893 transitions. [2025-03-17 10:42:40,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 598 places, 1136 transitions, 7142 flow [2025-03-17 10:42:40,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 598 places, 1136 transitions, 6662 flow, removed 240 selfloop flow, removed 0 redundant places. [2025-03-17 10:42:40,979 INFO L231 Difference]: Finished difference. Result has 603 places, 1124 transitions, 5910 flow [2025-03-17 10:42:40,980 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=4136, PETRI_DIFFERENCE_MINUEND_PLACES=593, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=975, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=927, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5910, PETRI_PLACES=603, PETRI_TRANSITIONS=1124} [2025-03-17 10:42:40,981 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, 33 predicate places. [2025-03-17 10:42:40,981 INFO L471 AbstractCegarLoop]: Abstraction has has 603 places, 1124 transitions, 5910 flow [2025-03-17 10:42:40,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 437.3333333333333) internal successors, (2624), 6 states have internal predecessors, (2624), 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) [2025-03-17 10:42:40,981 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:40,982 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:40,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 10:42:40,982 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err16ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-03-17 10:42:40,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:40,982 INFO L85 PathProgramCache]: Analyzing trace with hash -622013439, now seen corresponding path program 1 times [2025-03-17 10:42:40,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:40,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440423535] [2025-03-17 10:42:40,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:40,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:41,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 212 statements into 1 equivalence classes. [2025-03-17 10:42:41,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 212 of 212 statements. [2025-03-17 10:42:41,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:41,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:41,430 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-17 10:42:41,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:41,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440423535] [2025-03-17 10:42:41,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440423535] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:41,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:41,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:42:41,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29320365] [2025-03-17 10:42:41,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:41,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:42:41,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:41,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:42:41,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:42:41,944 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 592 [2025-03-17 10:42:41,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 603 places, 1124 transitions, 5910 flow. Second operand has 6 states, 6 states have (on average 438.1666666666667) internal successors, (2629), 6 states have internal predecessors, (2629), 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) [2025-03-17 10:42:41,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:41,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 592 [2025-03-17 10:42:41,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:48,312 INFO L124 PetriNetUnfolderBase]: 7511/26884 cut-off events. [2025-03-17 10:42:48,312 INFO L125 PetriNetUnfolderBase]: For 28760/29266 co-relation queries the response was YES. [2025-03-17 10:42:48,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72169 conditions, 26884 events. 7511/26884 cut-off events. For 28760/29266 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 273570 event pairs, 2522 based on Foata normal form. 60/24829 useless extension candidates. Maximal degree in co-relation 70749. Up to 12642 conditions per place. [2025-03-17 10:42:48,741 INFO L140 encePairwiseOnDemand]: 543/592 looper letters, 706 selfloop transitions, 156 changer transitions 0/1284 dead transitions. [2025-03-17 10:42:48,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 607 places, 1284 transitions, 9018 flow [2025-03-17 10:42:48,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:42:48,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:42:48,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2893 transitions. [2025-03-17 10:42:48,745 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8144707207207207 [2025-03-17 10:42:48,745 INFO L175 Difference]: Start difference. First operand has 603 places, 1124 transitions, 5910 flow. Second operand 6 states and 2893 transitions. [2025-03-17 10:42:48,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 607 places, 1284 transitions, 9018 flow [2025-03-17 10:42:48,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 607 places, 1284 transitions, 8250 flow, removed 384 selfloop flow, removed 0 redundant places. [2025-03-17 10:42:48,816 INFO L231 Difference]: Finished difference. Result has 612 places, 1272 transitions, 7202 flow [2025-03-17 10:42:48,817 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=5140, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1075, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7202, PETRI_PLACES=612, PETRI_TRANSITIONS=1272} [2025-03-17 10:42:48,817 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, 42 predicate places. [2025-03-17 10:42:48,817 INFO L471 AbstractCegarLoop]: Abstraction has has 612 places, 1272 transitions, 7202 flow [2025-03-17 10:42:48,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 438.1666666666667) internal successors, (2629), 6 states have internal predecessors, (2629), 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) [2025-03-17 10:42:48,818 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:48,818 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:48,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-17 10:42:48,818 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-03-17 10:42:48,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:48,819 INFO L85 PathProgramCache]: Analyzing trace with hash 23164268, now seen corresponding path program 1 times [2025-03-17 10:42:48,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:48,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397688548] [2025-03-17 10:42:48,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:48,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:48,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 220 statements into 1 equivalence classes. [2025-03-17 10:42:48,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 220 of 220 statements. [2025-03-17 10:42:48,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:48,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:49,165 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-17 10:42:49,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:49,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397688548] [2025-03-17 10:42:49,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397688548] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:49,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:49,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:42:49,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728644528] [2025-03-17 10:42:49,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:49,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:42:49,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:49,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:42:49,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:42:49,570 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 592 [2025-03-17 10:42:49,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 612 places, 1272 transitions, 7202 flow. Second operand has 6 states, 6 states have (on average 439.8333333333333) internal successors, (2639), 6 states have internal predecessors, (2639), 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) [2025-03-17 10:42:49,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:49,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 592 [2025-03-17 10:42:49,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:42:54,782 INFO L124 PetriNetUnfolderBase]: 7133/25766 cut-off events. [2025-03-17 10:42:54,782 INFO L125 PetriNetUnfolderBase]: For 36914/37579 co-relation queries the response was YES. [2025-03-17 10:42:54,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74741 conditions, 25766 events. 7133/25766 cut-off events. For 36914/37579 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 261140 event pairs, 2299 based on Foata normal form. 10/23840 useless extension candidates. Maximal degree in co-relation 73287. Up to 12670 conditions per place. [2025-03-17 10:42:54,971 INFO L140 encePairwiseOnDemand]: 586/592 looper letters, 857 selfloop transitions, 5 changer transitions 0/1283 dead transitions. [2025-03-17 10:42:54,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 616 places, 1283 transitions, 8956 flow [2025-03-17 10:42:54,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:42:54,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:42:54,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2748 transitions. [2025-03-17 10:42:54,974 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7736486486486487 [2025-03-17 10:42:54,975 INFO L175 Difference]: Start difference. First operand has 612 places, 1272 transitions, 7202 flow. Second operand 6 states and 2748 transitions. [2025-03-17 10:42:54,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 616 places, 1283 transitions, 8956 flow [2025-03-17 10:42:55,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 616 places, 1283 transitions, 7900 flow, removed 528 selfloop flow, removed 0 redundant places. [2025-03-17 10:42:55,059 INFO L231 Difference]: Finished difference. Result has 616 places, 1271 transitions, 6154 flow [2025-03-17 10:42:55,059 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=6144, PETRI_DIFFERENCE_MINUEND_PLACES=611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6154, PETRI_PLACES=616, PETRI_TRANSITIONS=1271} [2025-03-17 10:42:55,060 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, 46 predicate places. [2025-03-17 10:42:55,061 INFO L471 AbstractCegarLoop]: Abstraction has has 616 places, 1271 transitions, 6154 flow [2025-03-17 10:42:55,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 439.8333333333333) internal successors, (2639), 6 states have internal predecessors, (2639), 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) [2025-03-17 10:42:55,061 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:42:55,061 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:42:55,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-17 10:42:55,061 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-03-17 10:42:55,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:42:55,062 INFO L85 PathProgramCache]: Analyzing trace with hash -482321401, now seen corresponding path program 1 times [2025-03-17 10:42:55,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:42:55,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194126776] [2025-03-17 10:42:55,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:42:55,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:42:55,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 231 statements into 1 equivalence classes. [2025-03-17 10:42:55,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 231 of 231 statements. [2025-03-17 10:42:55,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:42:55,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:42:55,413 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-17 10:42:55,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:42:55,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194126776] [2025-03-17 10:42:55,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194126776] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:42:55,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:42:55,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:42:55,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333766297] [2025-03-17 10:42:55,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:42:55,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:42:55,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:42:55,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:42:55,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:42:56,151 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 592 [2025-03-17 10:42:56,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 616 places, 1271 transitions, 6154 flow. Second operand has 6 states, 6 states have (on average 505.1666666666667) internal successors, (3031), 6 states have internal predecessors, (3031), 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) [2025-03-17 10:42:56,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:42:56,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 592 [2025-03-17 10:42:56,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:43:00,435 INFO L124 PetriNetUnfolderBase]: 5003/20381 cut-off events. [2025-03-17 10:43:00,435 INFO L125 PetriNetUnfolderBase]: For 24961/25457 co-relation queries the response was YES. [2025-03-17 10:43:00,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54216 conditions, 20381 events. 5003/20381 cut-off events. For 24961/25457 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 203871 event pairs, 719 based on Foata normal form. 90/18965 useless extension candidates. Maximal degree in co-relation 53021. Up to 5720 conditions per place. [2025-03-17 10:43:00,604 INFO L140 encePairwiseOnDemand]: 586/592 looper letters, 392 selfloop transitions, 5 changer transitions 0/1282 dead transitions. [2025-03-17 10:43:00,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 620 places, 1282 transitions, 6978 flow [2025-03-17 10:43:00,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:43:00,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:43:00,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3088 transitions. [2025-03-17 10:43:00,609 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8693693693693694 [2025-03-17 10:43:00,609 INFO L175 Difference]: Start difference. First operand has 616 places, 1271 transitions, 6154 flow. Second operand 6 states and 3088 transitions. [2025-03-17 10:43:00,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 620 places, 1282 transitions, 6978 flow [2025-03-17 10:43:00,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 615 places, 1282 transitions, 6968 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-17 10:43:00,683 INFO L231 Difference]: Finished difference. Result has 615 places, 1270 transitions, 6152 flow [2025-03-17 10:43:00,684 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=6142, PETRI_DIFFERENCE_MINUEND_PLACES=610, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6152, PETRI_PLACES=615, PETRI_TRANSITIONS=1270} [2025-03-17 10:43:00,685 INFO L279 CegarLoopForPetriNet]: 570 programPoint places, 45 predicate places. [2025-03-17 10:43:00,685 INFO L471 AbstractCegarLoop]: Abstraction has has 615 places, 1270 transitions, 6152 flow [2025-03-17 10:43:00,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 505.1666666666667) internal successors, (3031), 6 states have internal predecessors, (3031), 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) [2025-03-17 10:43:00,685 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:43:00,686 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:43:00,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-17 10:43:00,686 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2025-03-17 10:43:00,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:43:00,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1580695414, now seen corresponding path program 1 times [2025-03-17 10:43:00,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:43:00,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566710856] [2025-03-17 10:43:00,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:43:00,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:43:00,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 237 statements into 1 equivalence classes. [2025-03-17 10:43:00,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 237 of 237 statements. [2025-03-17 10:43:00,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:43:00,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:43:01,255 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-17 10:43:01,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:43:01,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566710856] [2025-03-17 10:43:01,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566710856] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:43:01,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:43:01,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:43:01,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751089996] [2025-03-17 10:43:01,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:43:01,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:43:01,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:43:01,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:43:01,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:43:02,007 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 592 [2025-03-17 10:43:02,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 615 places, 1270 transitions, 6152 flow. Second operand has 6 states, 6 states have (on average 505.1666666666667) internal successors, (3031), 6 states have internal predecessors, (3031), 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) [2025-03-17 10:43:02,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:43:02,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 592 [2025-03-17 10:43:02,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand