./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 735b3cc8 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/goblint-regression/06-symbeq_04-funloop_hard1.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 4d853145e48ada6aa212af657ef21b1dd6bc82cb156511f71c23f87b45f2510e --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 01:35:25,016 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 01:35:25,058 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-14 01:35:25,063 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 01:35:25,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 01:35:25,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 01:35:25,084 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 01:35:25,084 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 01:35:25,084 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 01:35:25,085 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 01:35:25,085 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 01:35:25,086 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 01:35:25,086 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 01:35:25,086 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 01:35:25,086 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 01:35:25,086 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 01:35:25,086 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 01:35:25,087 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 01:35:25,087 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 01:35:25,087 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 01:35:25,087 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 01:35:25,087 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 01:35:25,087 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-14 01:35:25,087 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-14 01:35:25,087 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 01:35:25,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 01:35:25,087 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 01:35:25,087 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 01:35:25,087 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 01:35:25,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 01:35:25,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 01:35:25,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:35:25,088 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 01:35:25,088 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 01:35:25,088 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 01:35:25,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 01:35:25,088 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 01:35:25,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 01:35:25,088 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 01:35:25,088 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 01:35:25,088 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 01:35:25,088 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 01:35:25,088 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 -> 4d853145e48ada6aa212af657ef21b1dd6bc82cb156511f71c23f87b45f2510e [2025-03-14 01:35:25,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 01:35:25,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 01:35:25,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 01:35:25,334 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 01:35:25,335 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 01:35:25,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i [2025-03-14 01:35:26,541 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7cae179c/8468f7a7a5a54e3dad262cd9a241f42b/FLAG6805e2ce9 [2025-03-14 01:35:26,833 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 01:35:26,833 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i [2025-03-14 01:35:26,850 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7cae179c/8468f7a7a5a54e3dad262cd9a241f42b/FLAG6805e2ce9 [2025-03-14 01:35:26,863 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7cae179c/8468f7a7a5a54e3dad262cd9a241f42b [2025-03-14 01:35:26,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 01:35:26,867 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 01:35:26,868 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 01:35:26,868 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 01:35:26,872 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 01:35:26,873 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:35:26" (1/1) ... [2025-03-14 01:35:26,874 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c6f6924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:26, skipping insertion in model container [2025-03-14 01:35:26,875 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:35:26" (1/1) ... [2025-03-14 01:35:26,906 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 01:35:27,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:35:27,204 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 01:35:27,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:35:27,309 INFO L204 MainTranslator]: Completed translation [2025-03-14 01:35:27,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:27 WrapperNode [2025-03-14 01:35:27,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 01:35:27,310 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 01:35:27,310 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 01:35:27,310 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 01:35:27,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:27" (1/1) ... [2025-03-14 01:35:27,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:27" (1/1) ... [2025-03-14 01:35:27,349 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 170 [2025-03-14 01:35:27,349 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 01:35:27,350 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 01:35:27,350 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 01:35:27,350 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 01:35:27,355 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:27" (1/1) ... [2025-03-14 01:35:27,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:27" (1/1) ... [2025-03-14 01:35:27,363 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:27" (1/1) ... [2025-03-14 01:35:27,363 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:27" (1/1) ... [2025-03-14 01:35:27,379 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:27" (1/1) ... [2025-03-14 01:35:27,380 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:27" (1/1) ... [2025-03-14 01:35:27,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:27" (1/1) ... [2025-03-14 01:35:27,387 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:27" (1/1) ... [2025-03-14 01:35:27,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 01:35:27,389 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 01:35:27,389 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 01:35:27,389 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 01:35:27,391 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:27" (1/1) ... [2025-03-14 01:35:27,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:35:27,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:35:27,416 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) [2025-03-14 01:35:27,418 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 [2025-03-14 01:35:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-14 01:35:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-14 01:35:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-14 01:35:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-14 01:35:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 01:35:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-14 01:35:27,434 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-14 01:35:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-14 01:35:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 01:35:27,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 01:35:27,435 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 01:35:27,520 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 01:35:27,522 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 01:35:27,804 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 01:35:27,805 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 01:35:27,805 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 01:35:27,831 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 01:35:27,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:35:27 BoogieIcfgContainer [2025-03-14 01:35:27,832 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 01:35:27,834 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 01:35:27,834 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 01:35:27,837 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 01:35:27,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 01:35:26" (1/3) ... [2025-03-14 01:35:27,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454db5f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:35:27, skipping insertion in model container [2025-03-14 01:35:27,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:27" (2/3) ... [2025-03-14 01:35:27,840 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454db5f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:35:27, skipping insertion in model container [2025-03-14 01:35:27,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:35:27" (3/3) ... [2025-03-14 01:35:27,841 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_04-funloop_hard1.i [2025-03-14 01:35:27,853 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 01:35:27,854 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_04-funloop_hard1.i that has 2 procedures, 180 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2025-03-14 01:35:27,854 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 01:35:27,920 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 01:35:27,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 182 transitions, 368 flow [2025-03-14 01:35:28,015 INFO L124 PetriNetUnfolderBase]: 3/181 cut-off events. [2025-03-14 01:35:28,016 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:35:28,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 181 events. 3/181 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 232 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2025-03-14 01:35:28,023 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 182 transitions, 368 flow [2025-03-14 01:35:28,027 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 181 transitions, 365 flow [2025-03-14 01:35:28,032 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:35:28,040 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;@684819f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:35:28,040 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-14 01:35:28,059 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:35:28,059 INFO L124 PetriNetUnfolderBase]: 1/115 cut-off events. [2025-03-14 01:35:28,059 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:35:28,059 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:28,059 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] [2025-03-14 01:35:28,060 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:35:28,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:28,063 INFO L85 PathProgramCache]: Analyzing trace with hash 398662977, now seen corresponding path program 1 times [2025-03-14 01:35:28,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:28,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195768887] [2025-03-14 01:35:28,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:28,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:28,149 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-14 01:35:28,178 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-14 01:35:28,182 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:28,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:28,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:28,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:28,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195768887] [2025-03-14 01:35:28,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195768887] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:28,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:28,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-14 01:35:28,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129009528] [2025-03-14 01:35:28,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:28,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:35:28,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:28,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:35:28,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:35:28,455 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 182 [2025-03-14 01:35:28,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 181 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2025-03-14 01:35:28,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:28,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 182 [2025-03-14 01:35:28,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:28,555 INFO L124 PetriNetUnfolderBase]: 15/321 cut-off events. [2025-03-14 01:35:28,555 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:35:28,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 321 events. 15/321 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 914 event pairs, 10 based on Foata normal form. 1/301 useless extension candidates. Maximal degree in co-relation 266. Up to 36 conditions per place. [2025-03-14 01:35:28,560 INFO L140 encePairwiseOnDemand]: 179/182 looper letters, 12 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2025-03-14 01:35:28,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 182 transitions, 395 flow [2025-03-14 01:35:28,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:35:28,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:35:28,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions. [2025-03-14 01:35:28,575 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9560439560439561 [2025-03-14 01:35:28,577 INFO L175 Difference]: Start difference. First operand has 182 places, 181 transitions, 365 flow. Second operand 3 states and 522 transitions. [2025-03-14 01:35:28,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 182 transitions, 395 flow [2025-03-14 01:35:28,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 182 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-14 01:35:28,586 INFO L231 Difference]: Finished difference. Result has 184 places, 182 transitions, 376 flow [2025-03-14 01:35:28,588 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=184, PETRI_TRANSITIONS=182} [2025-03-14 01:35:28,591 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 2 predicate places. [2025-03-14 01:35:28,592 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 182 transitions, 376 flow [2025-03-14 01:35:28,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2025-03-14 01:35:28,593 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:28,593 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] [2025-03-14 01:35:28,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 01:35:28,594 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:35:28,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:28,595 INFO L85 PathProgramCache]: Analyzing trace with hash 273525691, now seen corresponding path program 1 times [2025-03-14 01:35:28,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:28,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397084782] [2025-03-14 01:35:28,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:28,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:28,614 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-14 01:35:28,627 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-14 01:35:28,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:28,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:28,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:28,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:28,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397084782] [2025-03-14 01:35:28,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397084782] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 01:35:28,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391099464] [2025-03-14 01:35:28,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:28,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:35:28,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:35:28,789 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 01:35:28,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-14 01:35:28,858 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-14 01:35:28,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-14 01:35:28,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:28,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:28,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-14 01:35:28,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 01:35:28,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 01:35:28,921 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-14 01:35:28,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391099464] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:28,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-14 01:35:28,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-14 01:35:28,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453771714] [2025-03-14 01:35:28,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:28,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:35:28,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:28,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:35:28,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:35:28,936 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 182 [2025-03-14 01:35:28,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 182 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2025-03-14 01:35:28,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:28,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 182 [2025-03-14 01:35:28,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:29,010 INFO L124 PetriNetUnfolderBase]: 35/481 cut-off events. [2025-03-14 01:35:29,010 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:35:29,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 481 events. 35/481 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1726 event pairs, 10 based on Foata normal form. 3/450 useless extension candidates. Maximal degree in co-relation 481. Up to 51 conditions per place. [2025-03-14 01:35:29,017 INFO L140 encePairwiseOnDemand]: 179/182 looper letters, 16 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2025-03-14 01:35:29,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 187 transitions, 422 flow [2025-03-14 01:35:29,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:35:29,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:35:29,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2025-03-14 01:35:29,020 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9633699633699634 [2025-03-14 01:35:29,020 INFO L175 Difference]: Start difference. First operand has 184 places, 182 transitions, 376 flow. Second operand 3 states and 526 transitions. [2025-03-14 01:35:29,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 187 transitions, 422 flow [2025-03-14 01:35:29,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 187 transitions, 420 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-14 01:35:29,024 INFO L231 Difference]: Finished difference. Result has 186 places, 183 transitions, 386 flow [2025-03-14 01:35:29,025 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=186, PETRI_TRANSITIONS=183} [2025-03-14 01:35:29,025 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 4 predicate places. [2025-03-14 01:35:29,026 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 183 transitions, 386 flow [2025-03-14 01:35:29,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2025-03-14 01:35:29,027 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:29,027 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] [2025-03-14 01:35:29,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-14 01:35:29,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:35:29,233 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:35:29,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:29,234 INFO L85 PathProgramCache]: Analyzing trace with hash -2132139115, now seen corresponding path program 1 times [2025-03-14 01:35:29,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:29,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740891918] [2025-03-14 01:35:29,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:29,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:29,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-14 01:35:29,258 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-14 01:35:29,258 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:29,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:29,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:29,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:29,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740891918] [2025-03-14 01:35:29,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740891918] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 01:35:29,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101362036] [2025-03-14 01:35:29,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:29,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:35:29,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:35:29,370 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 01:35:29,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-14 01:35:29,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-14 01:35:29,454 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-14 01:35:29,454 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:29,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:29,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-14 01:35:29,457 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 01:35:29,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:29,508 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 01:35:29,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:29,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101362036] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 01:35:29,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 01:35:29,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-14 01:35:29,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127939307] [2025-03-14 01:35:29,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 01:35:29,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 01:35:29,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:29,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 01:35:29,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-14 01:35:29,569 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 182 [2025-03-14 01:35:29,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 183 transitions, 386 flow. Second operand has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 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) [2025-03-14 01:35:29,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:29,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 182 [2025-03-14 01:35:29,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:29,727 INFO L124 PetriNetUnfolderBase]: 24/489 cut-off events. [2025-03-14 01:35:29,727 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:35:29,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 489 events. 24/489 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1569 event pairs, 14 based on Foata normal form. 2/457 useless extension candidates. Maximal degree in co-relation 458. Up to 51 conditions per place. [2025-03-14 01:35:29,730 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 16 selfloop transitions, 9 changer transitions 0/191 dead transitions. [2025-03-14 01:35:29,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 191 transitions, 454 flow [2025-03-14 01:35:29,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-14 01:35:29,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-14 01:35:29,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1521 transitions. [2025-03-14 01:35:29,733 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9285714285714286 [2025-03-14 01:35:29,733 INFO L175 Difference]: Start difference. First operand has 186 places, 183 transitions, 386 flow. Second operand 9 states and 1521 transitions. [2025-03-14 01:35:29,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 191 transitions, 454 flow [2025-03-14 01:35:29,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 191 transitions, 452 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-14 01:35:29,736 INFO L231 Difference]: Finished difference. Result has 196 places, 189 transitions, 434 flow [2025-03-14 01:35:29,736 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=434, PETRI_PLACES=196, PETRI_TRANSITIONS=189} [2025-03-14 01:35:29,737 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 14 predicate places. [2025-03-14 01:35:29,737 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 189 transitions, 434 flow [2025-03-14 01:35:29,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 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) [2025-03-14 01:35:29,738 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:29,738 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:29,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-14 01:35:29,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-14 01:35:29,939 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:35:29,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:29,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1323425749, now seen corresponding path program 2 times [2025-03-14 01:35:29,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:29,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551906005] [2025-03-14 01:35:29,941 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:35:29,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:29,953 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 105 statements into 2 equivalence classes. [2025-03-14 01:35:29,969 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 105 statements. [2025-03-14 01:35:29,969 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:35:29,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:30,347 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-14 01:35:30,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:30,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551906005] [2025-03-14 01:35:30,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551906005] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:30,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:30,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:35:30,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686811880] [2025-03-14 01:35:30,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:30,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:35:30,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:30,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:35:30,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:35:30,535 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-14 01:35:30,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 189 transitions, 434 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:30,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:30,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-14 01:35:30,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:30,777 INFO L124 PetriNetUnfolderBase]: 333/1545 cut-off events. [2025-03-14 01:35:30,777 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-14 01:35:30,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2256 conditions, 1545 events. 333/1545 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 10115 event pairs, 160 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 2144. Up to 544 conditions per place. [2025-03-14 01:35:30,788 INFO L140 encePairwiseOnDemand]: 171/182 looper letters, 36 selfloop transitions, 22 changer transitions 0/218 dead transitions. [2025-03-14 01:35:30,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 218 transitions, 608 flow [2025-03-14 01:35:30,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:35:30,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:35:30,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 977 transitions. [2025-03-14 01:35:30,791 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8946886446886447 [2025-03-14 01:35:30,791 INFO L175 Difference]: Start difference. First operand has 196 places, 189 transitions, 434 flow. Second operand 6 states and 977 transitions. [2025-03-14 01:35:30,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 218 transitions, 608 flow [2025-03-14 01:35:30,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 218 transitions, 602 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-03-14 01:35:30,798 INFO L231 Difference]: Finished difference. Result has 205 places, 210 transitions, 578 flow [2025-03-14 01:35:30,798 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=578, PETRI_PLACES=205, PETRI_TRANSITIONS=210} [2025-03-14 01:35:30,799 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 23 predicate places. [2025-03-14 01:35:30,799 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 210 transitions, 578 flow [2025-03-14 01:35:30,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:30,800 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:30,800 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:30,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 01:35:30,801 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:35:30,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:30,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1407213627, now seen corresponding path program 1 times [2025-03-14 01:35:30,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:30,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568743803] [2025-03-14 01:35:30,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:30,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:30,813 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-14 01:35:30,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-14 01:35:30,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:30,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:30,967 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:30,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:30,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568743803] [2025-03-14 01:35:30,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568743803] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 01:35:30,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804578424] [2025-03-14 01:35:30,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:30,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:35:30,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:35:30,974 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 01:35:30,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-14 01:35:31,024 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-14 01:35:31,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-14 01:35:31,054 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:31,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:31,056 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-14 01:35:31,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 01:35:31,108 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:31,108 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 01:35:31,199 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:31,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804578424] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 01:35:31,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 01:35:31,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-03-14 01:35:31,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714563323] [2025-03-14 01:35:31,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 01:35:31,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-14 01:35:31,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:31,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-14 01:35:31,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-14 01:35:31,236 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 182 [2025-03-14 01:35:31,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 210 transitions, 578 flow. Second operand has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 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) [2025-03-14 01:35:31,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:31,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 182 [2025-03-14 01:35:31,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:31,551 INFO L124 PetriNetUnfolderBase]: 118/1109 cut-off events. [2025-03-14 01:35:31,552 INFO L125 PetriNetUnfolderBase]: For 77/83 co-relation queries the response was YES. [2025-03-14 01:35:31,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1607 conditions, 1109 events. 118/1109 cut-off events. For 77/83 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5898 event pairs, 24 based on Foata normal form. 4/1039 useless extension candidates. Maximal degree in co-relation 1418. Up to 133 conditions per place. [2025-03-14 01:35:31,559 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 20 selfloop transitions, 21 changer transitions 0/228 dead transitions. [2025-03-14 01:35:31,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 228 transitions, 748 flow [2025-03-14 01:35:31,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-14 01:35:31,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-14 01:35:31,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3531 transitions. [2025-03-14 01:35:31,566 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.923861852433281 [2025-03-14 01:35:31,566 INFO L175 Difference]: Start difference. First operand has 205 places, 210 transitions, 578 flow. Second operand 21 states and 3531 transitions. [2025-03-14 01:35:31,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 228 transitions, 748 flow [2025-03-14 01:35:31,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 228 transitions, 748 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:35:31,574 INFO L231 Difference]: Finished difference. Result has 230 places, 223 transitions, 708 flow [2025-03-14 01:35:31,575 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=708, PETRI_PLACES=230, PETRI_TRANSITIONS=223} [2025-03-14 01:35:31,576 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 48 predicate places. [2025-03-14 01:35:31,576 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 223 transitions, 708 flow [2025-03-14 01:35:31,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 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) [2025-03-14 01:35:31,578 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:31,578 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:31,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-14 01:35:31,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:35:31,783 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:35:31,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:31,784 INFO L85 PathProgramCache]: Analyzing trace with hash -2067257275, now seen corresponding path program 2 times [2025-03-14 01:35:31,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:31,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393641599] [2025-03-14 01:35:31,784 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:35:31,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:31,795 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 125 statements into 2 equivalence classes. [2025-03-14 01:35:31,801 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 125 statements. [2025-03-14 01:35:31,801 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:35:31,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:32,066 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-14 01:35:32,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:32,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393641599] [2025-03-14 01:35:32,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393641599] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:32,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:32,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:35:32,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989111883] [2025-03-14 01:35:32,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:32,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:35:32,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:32,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:35:32,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:35:32,225 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-14 01:35:32,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 223 transitions, 708 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:32,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:32,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-14 01:35:32,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:32,532 INFO L124 PetriNetUnfolderBase]: 505/2412 cut-off events. [2025-03-14 01:35:32,532 INFO L125 PetriNetUnfolderBase]: For 415/445 co-relation queries the response was YES. [2025-03-14 01:35:32,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4105 conditions, 2412 events. 505/2412 cut-off events. For 415/445 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 17728 event pairs, 194 based on Foata normal form. 5/2276 useless extension candidates. Maximal degree in co-relation 3909. Up to 824 conditions per place. [2025-03-14 01:35:32,542 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 61 selfloop transitions, 46 changer transitions 0/284 dead transitions. [2025-03-14 01:35:32,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 284 transitions, 1086 flow [2025-03-14 01:35:32,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:35:32,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:35:32,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1001 transitions. [2025-03-14 01:35:32,545 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2025-03-14 01:35:32,545 INFO L175 Difference]: Start difference. First operand has 230 places, 223 transitions, 708 flow. Second operand 6 states and 1001 transitions. [2025-03-14 01:35:32,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 284 transitions, 1086 flow [2025-03-14 01:35:32,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 284 transitions, 1062 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-03-14 01:35:32,552 INFO L231 Difference]: Finished difference. Result has 234 places, 268 transitions, 1038 flow [2025-03-14 01:35:32,553 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1038, PETRI_PLACES=234, PETRI_TRANSITIONS=268} [2025-03-14 01:35:32,554 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 52 predicate places. [2025-03-14 01:35:32,554 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 268 transitions, 1038 flow [2025-03-14 01:35:32,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:32,555 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:32,555 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:32,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-14 01:35:32,555 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:35:32,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:32,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1078927013, now seen corresponding path program 1 times [2025-03-14 01:35:32,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:32,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591809829] [2025-03-14 01:35:32,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:32,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:32,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-14 01:35:32,579 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-14 01:35:32,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:32,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:32,826 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:32,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:32,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591809829] [2025-03-14 01:35:32,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591809829] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 01:35:32,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004145410] [2025-03-14 01:35:32,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:32,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:35:32,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:35:32,830 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 01:35:32,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-14 01:35:32,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-14 01:35:32,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-14 01:35:32,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:32,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:32,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-14 01:35:32,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 01:35:32,989 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:32,990 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 01:35:33,161 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:33,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004145410] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 01:35:33,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 01:35:33,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-03-14 01:35:33,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611914640] [2025-03-14 01:35:33,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 01:35:33,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-14 01:35:33,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:33,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-14 01:35:33,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-03-14 01:35:33,191 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 182 [2025-03-14 01:35:33,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 268 transitions, 1038 flow. Second operand has 23 states, 23 states have (on average 168.08695652173913) internal successors, (3866), 23 states have internal predecessors, (3866), 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) [2025-03-14 01:35:33,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:33,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 182 [2025-03-14 01:35:33,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:33,630 INFO L124 PetriNetUnfolderBase]: 264/1738 cut-off events. [2025-03-14 01:35:33,630 INFO L125 PetriNetUnfolderBase]: For 589/618 co-relation queries the response was YES. [2025-03-14 01:35:33,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3163 conditions, 1738 events. 264/1738 cut-off events. For 589/618 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 11608 event pairs, 40 based on Foata normal form. 13/1667 useless extension candidates. Maximal degree in co-relation 2886. Up to 204 conditions per place. [2025-03-14 01:35:33,639 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 23 selfloop transitions, 30 changer transitions 0/285 dead transitions. [2025-03-14 01:35:33,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 285 transitions, 1266 flow [2025-03-14 01:35:33,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-14 01:35:33,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-14 01:35:33,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5036 transitions. [2025-03-14 01:35:33,646 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9223443223443224 [2025-03-14 01:35:33,647 INFO L175 Difference]: Start difference. First operand has 234 places, 268 transitions, 1038 flow. Second operand 30 states and 5036 transitions. [2025-03-14 01:35:33,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 285 transitions, 1266 flow [2025-03-14 01:35:33,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 285 transitions, 1266 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:35:33,654 INFO L231 Difference]: Finished difference. Result has 267 places, 278 transitions, 1190 flow [2025-03-14 01:35:33,654 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1190, PETRI_PLACES=267, PETRI_TRANSITIONS=278} [2025-03-14 01:35:33,656 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 85 predicate places. [2025-03-14 01:35:33,656 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 278 transitions, 1190 flow [2025-03-14 01:35:33,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 168.08695652173913) internal successors, (3866), 23 states have internal predecessors, (3866), 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) [2025-03-14 01:35:33,658 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:33,658 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:33,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-14 01:35:33,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:35:33,859 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:35:33,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:33,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1427340449, now seen corresponding path program 2 times [2025-03-14 01:35:33,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:33,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845656233] [2025-03-14 01:35:33,860 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:35:33,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:33,871 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 148 statements into 2 equivalence classes. [2025-03-14 01:35:33,875 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 98 of 148 statements. [2025-03-14 01:35:33,876 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:35:33,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:34,104 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:35:34,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:34,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845656233] [2025-03-14 01:35:34,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845656233] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:34,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:34,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:35:34,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923541905] [2025-03-14 01:35:34,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:34,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:35:34,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:34,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:35:34,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:35:34,198 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 182 [2025-03-14 01:35:34,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 278 transitions, 1190 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:34,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:34,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 182 [2025-03-14 01:35:34,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:34,649 INFO L124 PetriNetUnfolderBase]: 949/3309 cut-off events. [2025-03-14 01:35:34,650 INFO L125 PetriNetUnfolderBase]: For 2058/2153 co-relation queries the response was YES. [2025-03-14 01:35:34,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7539 conditions, 3309 events. 949/3309 cut-off events. For 2058/2153 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 23816 event pairs, 303 based on Foata normal form. 20/3172 useless extension candidates. Maximal degree in co-relation 7261. Up to 1634 conditions per place. [2025-03-14 01:35:34,669 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 102 selfloop transitions, 57 changer transitions 0/333 dead transitions. [2025-03-14 01:35:34,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 333 transitions, 1752 flow [2025-03-14 01:35:34,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:35:34,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:35:34,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 943 transitions. [2025-03-14 01:35:34,672 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8635531135531136 [2025-03-14 01:35:34,672 INFO L175 Difference]: Start difference. First operand has 267 places, 278 transitions, 1190 flow. Second operand 6 states and 943 transitions. [2025-03-14 01:35:34,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 333 transitions, 1752 flow [2025-03-14 01:35:34,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 333 transitions, 1706 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-03-14 01:35:34,685 INFO L231 Difference]: Finished difference. Result has 259 places, 325 transitions, 1642 flow [2025-03-14 01:35:34,685 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1642, PETRI_PLACES=259, PETRI_TRANSITIONS=325} [2025-03-14 01:35:34,686 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 77 predicate places. [2025-03-14 01:35:34,687 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 325 transitions, 1642 flow [2025-03-14 01:35:34,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:34,687 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:34,687 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:34,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-14 01:35:34,687 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:35:34,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:34,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1670237187, now seen corresponding path program 1 times [2025-03-14 01:35:34,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:34,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720819115] [2025-03-14 01:35:34,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:34,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:34,702 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-03-14 01:35:34,713 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-03-14 01:35:34,714 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:34,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:34,994 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:35:34,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:34,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720819115] [2025-03-14 01:35:34,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720819115] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:34,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:34,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:35:34,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246038083] [2025-03-14 01:35:34,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:34,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:35:34,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:34,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:35:34,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:35:35,084 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 182 [2025-03-14 01:35:35,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 325 transitions, 1642 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:35,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:35,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 182 [2025-03-14 01:35:35,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:35,805 INFO L124 PetriNetUnfolderBase]: 1319/4555 cut-off events. [2025-03-14 01:35:35,805 INFO L125 PetriNetUnfolderBase]: For 4859/4990 co-relation queries the response was YES. [2025-03-14 01:35:35,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11634 conditions, 4555 events. 1319/4555 cut-off events. For 4859/4990 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 35660 event pairs, 341 based on Foata normal form. 40/4406 useless extension candidates. Maximal degree in co-relation 11373. Up to 2190 conditions per place. [2025-03-14 01:35:35,831 INFO L140 encePairwiseOnDemand]: 159/182 looper letters, 143 selfloop transitions, 103 changer transitions 4/426 dead transitions. [2025-03-14 01:35:35,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 426 transitions, 2608 flow [2025-03-14 01:35:35,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:35:35,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:35:35,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 983 transitions. [2025-03-14 01:35:35,834 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9001831501831502 [2025-03-14 01:35:35,834 INFO L175 Difference]: Start difference. First operand has 259 places, 325 transitions, 1642 flow. Second operand 6 states and 983 transitions. [2025-03-14 01:35:35,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 426 transitions, 2608 flow [2025-03-14 01:35:35,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 426 transitions, 2544 flow, removed 32 selfloop flow, removed 0 redundant places. [2025-03-14 01:35:35,854 INFO L231 Difference]: Finished difference. Result has 269 places, 410 transitions, 2494 flow [2025-03-14 01:35:35,855 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=1584, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2494, PETRI_PLACES=269, PETRI_TRANSITIONS=410} [2025-03-14 01:35:35,855 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 87 predicate places. [2025-03-14 01:35:35,856 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 410 transitions, 2494 flow [2025-03-14 01:35:35,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:35,856 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:35,856 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:35,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-14 01:35:35,857 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:35:35,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:35,858 INFO L85 PathProgramCache]: Analyzing trace with hash 496308676, now seen corresponding path program 1 times [2025-03-14 01:35:35,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:35,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779290564] [2025-03-14 01:35:35,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:35,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:35,869 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-14 01:35:35,889 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-14 01:35:35,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:35,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:36,291 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:35:36,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:36,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779290564] [2025-03-14 01:35:36,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779290564] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:36,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:36,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-14 01:35:36,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943351649] [2025-03-14 01:35:36,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:36,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 01:35:36,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:36,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 01:35:36,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-14 01:35:37,300 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-14 01:35:37,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 410 transitions, 2494 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:35:37,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:37,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-14 01:35:37,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:38,104 INFO L124 PetriNetUnfolderBase]: 1231/4917 cut-off events. [2025-03-14 01:35:38,104 INFO L125 PetriNetUnfolderBase]: For 6125/6264 co-relation queries the response was YES. [2025-03-14 01:35:38,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13121 conditions, 4917 events. 1231/4917 cut-off events. For 6125/6264 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 41564 event pairs, 180 based on Foata normal form. 37/4877 useless extension candidates. Maximal degree in co-relation 12843. Up to 712 conditions per place. [2025-03-14 01:35:38,138 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 73 selfloop transitions, 15 changer transitions 0/468 dead transitions. [2025-03-14 01:35:38,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 468 transitions, 2786 flow [2025-03-14 01:35:38,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-14 01:35:38,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-14 01:35:38,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1467 transitions. [2025-03-14 01:35:38,141 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8956043956043956 [2025-03-14 01:35:38,141 INFO L175 Difference]: Start difference. First operand has 269 places, 410 transitions, 2494 flow. Second operand 9 states and 1467 transitions. [2025-03-14 01:35:38,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 468 transitions, 2786 flow [2025-03-14 01:35:38,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 468 transitions, 2672 flow, removed 57 selfloop flow, removed 0 redundant places. [2025-03-14 01:35:38,177 INFO L231 Difference]: Finished difference. Result has 284 places, 424 transitions, 2492 flow [2025-03-14 01:35:38,178 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2380, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2492, PETRI_PLACES=284, PETRI_TRANSITIONS=424} [2025-03-14 01:35:38,179 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 102 predicate places. [2025-03-14 01:35:38,179 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 424 transitions, 2492 flow [2025-03-14 01:35:38,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:35:38,180 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:38,180 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:38,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-14 01:35:38,180 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:35:38,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:38,181 INFO L85 PathProgramCache]: Analyzing trace with hash 510152904, now seen corresponding path program 2 times [2025-03-14 01:35:38,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:38,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134237085] [2025-03-14 01:35:38,181 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:35:38,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:38,207 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-14 01:35:38,219 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-14 01:35:38,220 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:35:38,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:38,526 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:35:38,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:38,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134237085] [2025-03-14 01:35:38,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134237085] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:38,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:38,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-14 01:35:38,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749452702] [2025-03-14 01:35:38,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:38,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 01:35:38,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:38,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 01:35:38,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-14 01:35:39,575 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-14 01:35:39,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 424 transitions, 2492 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:35:39,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:39,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-14 01:35:39,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:40,875 INFO L124 PetriNetUnfolderBase]: 2479/9316 cut-off events. [2025-03-14 01:35:40,876 INFO L125 PetriNetUnfolderBase]: For 12598/12898 co-relation queries the response was YES. [2025-03-14 01:35:40,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26480 conditions, 9316 events. 2479/9316 cut-off events. For 12598/12898 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 88651 event pairs, 325 based on Foata normal form. 99/9273 useless extension candidates. Maximal degree in co-relation 26194. Up to 1468 conditions per place. [2025-03-14 01:35:40,936 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 119 selfloop transitions, 20 changer transitions 4/523 dead transitions. [2025-03-14 01:35:40,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 523 transitions, 3210 flow [2025-03-14 01:35:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-14 01:35:40,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-14 01:35:40,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1475 transitions. [2025-03-14 01:35:40,939 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9004884004884005 [2025-03-14 01:35:40,939 INFO L175 Difference]: Start difference. First operand has 284 places, 424 transitions, 2492 flow. Second operand 9 states and 1475 transitions. [2025-03-14 01:35:40,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 523 transitions, 3210 flow [2025-03-14 01:35:40,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 523 transitions, 3200 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-14 01:35:40,998 INFO L231 Difference]: Finished difference. Result has 298 places, 441 transitions, 2671 flow [2025-03-14 01:35:40,999 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2490, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2671, PETRI_PLACES=298, PETRI_TRANSITIONS=441} [2025-03-14 01:35:40,999 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 116 predicate places. [2025-03-14 01:35:41,000 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 441 transitions, 2671 flow [2025-03-14 01:35:41,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:35:41,000 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:41,000 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:41,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-14 01:35:41,001 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:35:41,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:41,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1645867836, now seen corresponding path program 3 times [2025-03-14 01:35:41,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:41,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675731883] [2025-03-14 01:35:41,001 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 01:35:41,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:41,012 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-14 01:35:41,019 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-14 01:35:41,019 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 01:35:41,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:41,371 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:35:41,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:41,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675731883] [2025-03-14 01:35:41,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675731883] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:41,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:41,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-14 01:35:41,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168413761] [2025-03-14 01:35:41,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:41,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 01:35:41,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:41,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 01:35:41,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-14 01:35:42,449 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-14 01:35:42,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 441 transitions, 2671 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:35:42,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:42,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-14 01:35:42,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:44,245 INFO L124 PetriNetUnfolderBase]: 2778/10527 cut-off events. [2025-03-14 01:35:44,245 INFO L125 PetriNetUnfolderBase]: For 16366/16818 co-relation queries the response was YES. [2025-03-14 01:35:44,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31099 conditions, 10527 events. 2778/10527 cut-off events. For 16366/16818 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 101812 event pairs, 352 based on Foata normal form. 106/10467 useless extension candidates. Maximal degree in co-relation 30805. Up to 1567 conditions per place. [2025-03-14 01:35:44,353 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 123 selfloop transitions, 22 changer transitions 0/525 dead transitions. [2025-03-14 01:35:44,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 525 transitions, 3459 flow [2025-03-14 01:35:44,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-14 01:35:44,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-14 01:35:44,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1472 transitions. [2025-03-14 01:35:44,356 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8986568986568987 [2025-03-14 01:35:44,356 INFO L175 Difference]: Start difference. First operand has 298 places, 441 transitions, 2671 flow. Second operand 9 states and 1472 transitions. [2025-03-14 01:35:44,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 525 transitions, 3459 flow [2025-03-14 01:35:44,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 525 transitions, 3421 flow, removed 19 selfloop flow, removed 0 redundant places. [2025-03-14 01:35:44,441 INFO L231 Difference]: Finished difference. Result has 311 places, 453 transitions, 2840 flow [2025-03-14 01:35:44,442 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2657, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2840, PETRI_PLACES=311, PETRI_TRANSITIONS=453} [2025-03-14 01:35:44,443 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 129 predicate places. [2025-03-14 01:35:44,443 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 453 transitions, 2840 flow [2025-03-14 01:35:44,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:35:44,443 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:44,443 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:44,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-14 01:35:44,444 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:35:44,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:44,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1851917024, now seen corresponding path program 4 times [2025-03-14 01:35:44,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:44,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438143999] [2025-03-14 01:35:44,445 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 01:35:44,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:44,460 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-14 01:35:44,489 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-14 01:35:44,492 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-14 01:35:44,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:44,967 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:35:44,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:44,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438143999] [2025-03-14 01:35:44,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438143999] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:44,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:44,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-14 01:35:44,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601544851] [2025-03-14 01:35:44,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:44,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 01:35:44,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:44,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 01:35:44,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-03-14 01:35:46,002 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-14 01:35:46,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 453 transitions, 2840 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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) [2025-03-14 01:35:46,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:46,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-14 01:35:46,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:47,550 INFO L124 PetriNetUnfolderBase]: 3073/11395 cut-off events. [2025-03-14 01:35:47,551 INFO L125 PetriNetUnfolderBase]: For 20248/20704 co-relation queries the response was YES. [2025-03-14 01:35:47,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34824 conditions, 11395 events. 3073/11395 cut-off events. For 20248/20704 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 111221 event pairs, 346 based on Foata normal form. 119/11359 useless extension candidates. Maximal degree in co-relation 34524. Up to 1851 conditions per place. [2025-03-14 01:35:47,645 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 137 selfloop transitions, 28 changer transitions 4/549 dead transitions. [2025-03-14 01:35:47,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 549 transitions, 3825 flow [2025-03-14 01:35:47,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-14 01:35:47,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-14 01:35:47,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1631 transitions. [2025-03-14 01:35:47,646 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8961538461538462 [2025-03-14 01:35:47,646 INFO L175 Difference]: Start difference. First operand has 311 places, 453 transitions, 2840 flow. Second operand 10 states and 1631 transitions. [2025-03-14 01:35:47,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 549 transitions, 3825 flow [2025-03-14 01:35:47,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 549 transitions, 3746 flow, removed 7 selfloop flow, removed 3 redundant places. [2025-03-14 01:35:47,744 INFO L231 Difference]: Finished difference. Result has 322 places, 465 transitions, 3021 flow [2025-03-14 01:35:47,744 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2814, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3021, PETRI_PLACES=322, PETRI_TRANSITIONS=465} [2025-03-14 01:35:47,745 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 140 predicate places. [2025-03-14 01:35:47,745 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 465 transitions, 3021 flow [2025-03-14 01:35:47,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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) [2025-03-14 01:35:47,745 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:47,746 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:47,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-14 01:35:47,746 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:35:47,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:47,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1516329702, now seen corresponding path program 5 times [2025-03-14 01:35:47,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:47,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031320148] [2025-03-14 01:35:47,747 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 01:35:47,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:47,757 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-14 01:35:47,772 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-14 01:35:47,772 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-14 01:35:47,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:48,251 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-03-14 01:35:48,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:48,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031320148] [2025-03-14 01:35:48,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031320148] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 01:35:48,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180815256] [2025-03-14 01:35:48,251 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 01:35:48,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:35:48,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:35:48,253 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 01:35:48,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-14 01:35:48,320 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-14 01:35:48,379 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-14 01:35:48,379 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-14 01:35:48,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:48,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-14 01:35:48,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 01:35:48,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-03-14 01:35:48,645 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:35:48,645 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-14 01:35:48,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180815256] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:48,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-14 01:35:48,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-03-14 01:35:48,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819209344] [2025-03-14 01:35:48,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:48,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 01:35:48,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:48,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 01:35:48,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2025-03-14 01:35:49,534 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-14 01:35:49,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 465 transitions, 3021 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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) [2025-03-14 01:35:49,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:49,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-14 01:35:49,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:51,313 INFO L124 PetriNetUnfolderBase]: 3406/12720 cut-off events. [2025-03-14 01:35:51,313 INFO L125 PetriNetUnfolderBase]: For 25302/25896 co-relation queries the response was YES. [2025-03-14 01:35:51,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39483 conditions, 12720 events. 3406/12720 cut-off events. For 25302/25896 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 126906 event pairs, 382 based on Foata normal form. 112/12645 useless extension candidates. Maximal degree in co-relation 39177. Up to 1959 conditions per place. [2025-03-14 01:35:51,429 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 136 selfloop transitions, 30 changer transitions 0/546 dead transitions. [2025-03-14 01:35:51,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 546 transitions, 4004 flow [2025-03-14 01:35:51,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-14 01:35:51,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-14 01:35:51,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1628 transitions. [2025-03-14 01:35:51,431 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8945054945054945 [2025-03-14 01:35:51,431 INFO L175 Difference]: Start difference. First operand has 322 places, 465 transitions, 3021 flow. Second operand 10 states and 1628 transitions. [2025-03-14 01:35:51,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 546 transitions, 4004 flow [2025-03-14 01:35:51,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 546 transitions, 3911 flow, removed 10 selfloop flow, removed 4 redundant places. [2025-03-14 01:35:51,539 INFO L231 Difference]: Finished difference. Result has 333 places, 480 transitions, 3259 flow [2025-03-14 01:35:51,539 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2978, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3259, PETRI_PLACES=333, PETRI_TRANSITIONS=480} [2025-03-14 01:35:51,540 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 151 predicate places. [2025-03-14 01:35:51,540 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 480 transitions, 3259 flow [2025-03-14 01:35:51,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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) [2025-03-14 01:35:51,541 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:51,541 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:51,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-14 01:35:51,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-14 01:35:51,746 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:35:51,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:51,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1220419554, now seen corresponding path program 6 times [2025-03-14 01:35:51,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:51,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499576059] [2025-03-14 01:35:51,748 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 01:35:51,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:51,758 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-03-14 01:35:51,768 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-14 01:35:51,768 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-14 01:35:51,768 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:51,942 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:35:51,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:51,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499576059] [2025-03-14 01:35:51,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499576059] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:51,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:51,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-14 01:35:51,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433349363] [2025-03-14 01:35:51,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:51,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 01:35:51,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:51,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 01:35:51,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-14 01:35:52,822 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-14 01:35:52,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 480 transitions, 3259 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:35:52,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:52,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-14 01:35:52,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:54,867 INFO L124 PetriNetUnfolderBase]: 3725/13728 cut-off events. [2025-03-14 01:35:54,867 INFO L125 PetriNetUnfolderBase]: For 31550/32164 co-relation queries the response was YES. [2025-03-14 01:35:54,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43944 conditions, 13728 events. 3725/13728 cut-off events. For 31550/32164 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 138859 event pairs, 386 based on Foata normal form. 120/13668 useless extension candidates. Maximal degree in co-relation 43632. Up to 2232 conditions per place. [2025-03-14 01:35:54,979 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 154 selfloop transitions, 34 changer transitions 2/570 dead transitions. [2025-03-14 01:35:54,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 570 transitions, 4410 flow [2025-03-14 01:35:54,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-14 01:35:54,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-14 01:35:54,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1479 transitions. [2025-03-14 01:35:54,981 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9029304029304029 [2025-03-14 01:35:54,981 INFO L175 Difference]: Start difference. First operand has 333 places, 480 transitions, 3259 flow. Second operand 9 states and 1479 transitions. [2025-03-14 01:35:54,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 570 transitions, 4410 flow [2025-03-14 01:35:55,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 570 transitions, 4312 flow, removed 27 selfloop flow, removed 3 redundant places. [2025-03-14 01:35:55,113 INFO L231 Difference]: Finished difference. Result has 344 places, 495 transitions, 3504 flow [2025-03-14 01:35:55,113 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=3198, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3504, PETRI_PLACES=344, PETRI_TRANSITIONS=495} [2025-03-14 01:35:55,114 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 162 predicate places. [2025-03-14 01:35:55,114 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 495 transitions, 3504 flow [2025-03-14 01:35:55,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:35:55,114 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:55,114 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:55,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-14 01:35:55,115 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:35:55,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:55,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1576277874, now seen corresponding path program 7 times [2025-03-14 01:35:55,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:55,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242980585] [2025-03-14 01:35:55,116 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 01:35:55,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:55,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-14 01:35:55,132 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-14 01:35:55,132 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:55,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:55,437 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:35:55,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:55,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242980585] [2025-03-14 01:35:55,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242980585] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:55,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:55,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-14 01:35:55,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101147410] [2025-03-14 01:35:55,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:55,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 01:35:55,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:55,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 01:35:55,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-14 01:35:56,210 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-14 01:35:56,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 495 transitions, 3504 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:35:56,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:56,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-14 01:35:56,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:58,483 INFO L124 PetriNetUnfolderBase]: 4068/15087 cut-off events. [2025-03-14 01:35:58,483 INFO L125 PetriNetUnfolderBase]: For 39976/40637 co-relation queries the response was YES. [2025-03-14 01:35:58,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49325 conditions, 15087 events. 4068/15087 cut-off events. For 39976/40637 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 155897 event pairs, 478 based on Foata normal form. 107/14981 useless extension candidates. Maximal degree in co-relation 49008. Up to 2363 conditions per place. [2025-03-14 01:35:58,617 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 150 selfloop transitions, 36 changer transitions 0/566 dead transitions. [2025-03-14 01:35:58,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 566 transitions, 4606 flow [2025-03-14 01:35:58,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-14 01:35:58,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-14 01:35:58,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1477 transitions. [2025-03-14 01:35:58,620 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9017094017094017 [2025-03-14 01:35:58,621 INFO L175 Difference]: Start difference. First operand has 344 places, 495 transitions, 3504 flow. Second operand 9 states and 1477 transitions. [2025-03-14 01:35:58,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 566 transitions, 4606 flow [2025-03-14 01:35:58,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 566 transitions, 4506 flow, removed 26 selfloop flow, removed 2 redundant places. [2025-03-14 01:35:58,786 INFO L231 Difference]: Finished difference. Result has 357 places, 514 transitions, 3855 flow [2025-03-14 01:35:58,787 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=3426, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3855, PETRI_PLACES=357, PETRI_TRANSITIONS=514} [2025-03-14 01:35:58,787 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 175 predicate places. [2025-03-14 01:35:58,787 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 514 transitions, 3855 flow [2025-03-14 01:35:58,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:35:58,788 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:58,788 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:58,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-14 01:35:58,788 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:35:58,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:58,789 INFO L85 PathProgramCache]: Analyzing trace with hash 2116917232, now seen corresponding path program 8 times [2025-03-14 01:35:58,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:58,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027492499] [2025-03-14 01:35:58,789 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:35:58,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:58,799 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-14 01:35:58,805 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-14 01:35:58,805 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:35:58,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:58,965 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:35:58,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:58,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027492499] [2025-03-14 01:35:58,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027492499] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:58,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:58,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-14 01:35:58,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422981107] [2025-03-14 01:35:58,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:58,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 01:35:58,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:58,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 01:35:58,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-14 01:35:59,463 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-14 01:35:59,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 514 transitions, 3855 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:35:59,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:59,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-14 01:35:59,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:02,179 INFO L124 PetriNetUnfolderBase]: 4671/16951 cut-off events. [2025-03-14 01:36:02,180 INFO L125 PetriNetUnfolderBase]: For 51043/51927 co-relation queries the response was YES. [2025-03-14 01:36:02,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57058 conditions, 16951 events. 4671/16951 cut-off events. For 51043/51927 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 179812 event pairs, 469 based on Foata normal form. 137/16875 useless extension candidates. Maximal degree in co-relation 56734. Up to 2778 conditions per place. [2025-03-14 01:36:02,313 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 173 selfloop transitions, 45 changer transitions 0/598 dead transitions. [2025-03-14 01:36:02,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 598 transitions, 5172 flow [2025-03-14 01:36:02,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-14 01:36:02,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-14 01:36:02,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1481 transitions. [2025-03-14 01:36:02,315 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9041514041514042 [2025-03-14 01:36:02,315 INFO L175 Difference]: Start difference. First operand has 357 places, 514 transitions, 3855 flow. Second operand 9 states and 1481 transitions. [2025-03-14 01:36:02,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 598 transitions, 5172 flow [2025-03-14 01:36:02,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 598 transitions, 5068 flow, removed 52 selfloop flow, removed 0 redundant places. [2025-03-14 01:36:02,548 INFO L231 Difference]: Finished difference. Result has 372 places, 532 transitions, 4209 flow [2025-03-14 01:36:02,548 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=3751, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4209, PETRI_PLACES=372, PETRI_TRANSITIONS=532} [2025-03-14 01:36:02,549 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 190 predicate places. [2025-03-14 01:36:02,549 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 532 transitions, 4209 flow [2025-03-14 01:36:02,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:36:02,549 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:02,549 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:02,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-14 01:36:02,550 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:36:02,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:02,550 INFO L85 PathProgramCache]: Analyzing trace with hash 487230494, now seen corresponding path program 9 times [2025-03-14 01:36:02,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:02,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373315567] [2025-03-14 01:36:02,551 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 01:36:02,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:02,561 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-14 01:36:02,566 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-14 01:36:02,567 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 01:36:02,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:02,766 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:36:02,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:02,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373315567] [2025-03-14 01:36:02,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373315567] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:02,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:02,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-14 01:36:02,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536941381] [2025-03-14 01:36:02,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:02,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 01:36:02,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:02,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 01:36:02,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-14 01:36:03,567 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-14 01:36:03,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 532 transitions, 4209 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:36:03,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:03,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-14 01:36:03,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:06,689 INFO L124 PetriNetUnfolderBase]: 4663/17065 cut-off events. [2025-03-14 01:36:06,689 INFO L125 PetriNetUnfolderBase]: For 56745/57647 co-relation queries the response was YES. [2025-03-14 01:36:06,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58128 conditions, 17065 events. 4663/17065 cut-off events. For 56745/57647 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 181799 event pairs, 445 based on Foata normal form. 223/17085 useless extension candidates. Maximal degree in co-relation 57796. Up to 2699 conditions per place. [2025-03-14 01:36:06,813 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 185 selfloop transitions, 58 changer transitions 0/623 dead transitions. [2025-03-14 01:36:06,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 623 transitions, 5535 flow [2025-03-14 01:36:06,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-14 01:36:06,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-14 01:36:06,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1470 transitions. [2025-03-14 01:36:06,814 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8974358974358975 [2025-03-14 01:36:06,814 INFO L175 Difference]: Start difference. First operand has 372 places, 532 transitions, 4209 flow. Second operand 9 states and 1470 transitions. [2025-03-14 01:36:06,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 623 transitions, 5535 flow [2025-03-14 01:36:07,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 623 transitions, 5447 flow, removed 44 selfloop flow, removed 0 redundant places. [2025-03-14 01:36:07,037 INFO L231 Difference]: Finished difference. Result has 384 places, 544 transitions, 4449 flow [2025-03-14 01:36:07,037 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=4123, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=478, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4449, PETRI_PLACES=384, PETRI_TRANSITIONS=544} [2025-03-14 01:36:07,038 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 202 predicate places. [2025-03-14 01:36:07,038 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 544 transitions, 4449 flow [2025-03-14 01:36:07,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:36:07,038 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:07,038 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:07,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-14 01:36:07,039 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:36:07,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:07,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1094714860, now seen corresponding path program 10 times [2025-03-14 01:36:07,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:07,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149008580] [2025-03-14 01:36:07,040 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 01:36:07,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:07,048 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-14 01:36:07,056 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-14 01:36:07,056 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-14 01:36:07,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:07,552 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:36:07,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:07,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149008580] [2025-03-14 01:36:07,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149008580] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:07,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:07,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-14 01:36:07,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650485055] [2025-03-14 01:36:07,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:07,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 01:36:07,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:07,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 01:36:07,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-14 01:36:08,311 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-14 01:36:08,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 544 transitions, 4449 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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) [2025-03-14 01:36:08,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:08,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-14 01:36:08,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:11,241 INFO L124 PetriNetUnfolderBase]: 4388/16276 cut-off events. [2025-03-14 01:36:11,241 INFO L125 PetriNetUnfolderBase]: For 58688/59591 co-relation queries the response was YES. [2025-03-14 01:36:11,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56085 conditions, 16276 events. 4388/16276 cut-off events. For 58688/59591 co-relation queries the response was YES. Maximal size of possible extension queue 479. Compared 171668 event pairs, 426 based on Foata normal form. 205/16278 useless extension candidates. Maximal degree in co-relation 55748. Up to 2535 conditions per place. [2025-03-14 01:36:11,366 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 185 selfloop transitions, 55 changer transitions 0/620 dead transitions. [2025-03-14 01:36:11,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 620 transitions, 5663 flow [2025-03-14 01:36:11,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-14 01:36:11,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-14 01:36:11,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1621 transitions. [2025-03-14 01:36:11,368 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8906593406593407 [2025-03-14 01:36:11,368 INFO L175 Difference]: Start difference. First operand has 384 places, 544 transitions, 4449 flow. Second operand 10 states and 1621 transitions. [2025-03-14 01:36:11,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 620 transitions, 5663 flow [2025-03-14 01:36:11,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 620 transitions, 5481 flow, removed 52 selfloop flow, removed 4 redundant places. [2025-03-14 01:36:11,599 INFO L231 Difference]: Finished difference. Result has 392 places, 547 transitions, 4483 flow [2025-03-14 01:36:11,599 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=4279, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4483, PETRI_PLACES=392, PETRI_TRANSITIONS=547} [2025-03-14 01:36:11,600 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 210 predicate places. [2025-03-14 01:36:11,600 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 547 transitions, 4483 flow [2025-03-14 01:36:11,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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) [2025-03-14 01:36:11,600 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:11,600 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:11,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-14 01:36:11,600 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:36:11,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:11,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1274962040, now seen corresponding path program 11 times [2025-03-14 01:36:11,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:11,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480914811] [2025-03-14 01:36:11,601 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 01:36:11,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:11,610 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-14 01:36:11,616 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-14 01:36:11,616 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-14 01:36:11,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:11,969 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-03-14 01:36:11,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:11,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480914811] [2025-03-14 01:36:11,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480914811] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 01:36:11,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116448688] [2025-03-14 01:36:11,970 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 01:36:11,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:36:11,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:36:11,972 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 01:36:11,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-14 01:36:12,047 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-14 01:36:12,090 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-14 01:36:12,090 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-14 01:36:12,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:12,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-14 01:36:12,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 01:36:12,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-03-14 01:36:12,332 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:36:12,332 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-14 01:36:12,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116448688] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:12,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-14 01:36:12,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-03-14 01:36:12,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631130320] [2025-03-14 01:36:12,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:12,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 01:36:12,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:12,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 01:36:12,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2025-03-14 01:36:13,076 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-14 01:36:13,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 547 transitions, 4483 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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) [2025-03-14 01:36:13,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:13,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-14 01:36:13,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:16,003 INFO L124 PetriNetUnfolderBase]: 4390/16303 cut-off events. [2025-03-14 01:36:16,003 INFO L125 PetriNetUnfolderBase]: For 56430/57210 co-relation queries the response was YES. [2025-03-14 01:36:16,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56006 conditions, 16303 events. 4390/16303 cut-off events. For 56430/57210 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 171969 event pairs, 450 based on Foata normal form. 175/16273 useless extension candidates. Maximal degree in co-relation 55665. Up to 2566 conditions per place. [2025-03-14 01:36:16,136 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 179 selfloop transitions, 61 changer transitions 0/620 dead transitions. [2025-03-14 01:36:16,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 620 transitions, 5647 flow [2025-03-14 01:36:16,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-14 01:36:16,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-14 01:36:16,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1624 transitions. [2025-03-14 01:36:16,137 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8923076923076924 [2025-03-14 01:36:16,137 INFO L175 Difference]: Start difference. First operand has 392 places, 547 transitions, 4483 flow. Second operand 10 states and 1624 transitions. [2025-03-14 01:36:16,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 620 transitions, 5647 flow [2025-03-14 01:36:16,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 620 transitions, 5529 flow, removed 5 selfloop flow, removed 6 redundant places. [2025-03-14 01:36:16,369 INFO L231 Difference]: Finished difference. Result has 400 places, 558 transitions, 4735 flow [2025-03-14 01:36:16,369 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=4383, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=547, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4735, PETRI_PLACES=400, PETRI_TRANSITIONS=558} [2025-03-14 01:36:16,370 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 218 predicate places. [2025-03-14 01:36:16,370 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 558 transitions, 4735 flow [2025-03-14 01:36:16,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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) [2025-03-14 01:36:16,370 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:16,370 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:16,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-14 01:36:16,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:36:16,574 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:36:16,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:16,575 INFO L85 PathProgramCache]: Analyzing trace with hash 2102762288, now seen corresponding path program 12 times [2025-03-14 01:36:16,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:16,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600263188] [2025-03-14 01:36:16,575 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 01:36:16,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:16,584 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-03-14 01:36:16,587 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-14 01:36:16,588 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-14 01:36:16,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:16,721 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:36:16,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:16,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600263188] [2025-03-14 01:36:16,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600263188] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:16,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:16,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-14 01:36:16,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988445966] [2025-03-14 01:36:16,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:16,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 01:36:16,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:16,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 01:36:16,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-14 01:36:17,534 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-14 01:36:17,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 558 transitions, 4735 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:36:17,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:17,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-14 01:36:17,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:20,687 INFO L124 PetriNetUnfolderBase]: 4679/17288 cut-off events. [2025-03-14 01:36:20,687 INFO L125 PetriNetUnfolderBase]: For 63711/64533 co-relation queries the response was YES. [2025-03-14 01:36:20,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59966 conditions, 17288 events. 4679/17288 cut-off events. For 63711/64533 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 184587 event pairs, 475 based on Foata normal form. 163/17232 useless extension candidates. Maximal degree in co-relation 59620. Up to 2741 conditions per place. [2025-03-14 01:36:20,885 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 203 selfloop transitions, 49 changer transitions 0/632 dead transitions. [2025-03-14 01:36:20,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 632 transitions, 6071 flow [2025-03-14 01:36:20,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-14 01:36:20,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-14 01:36:20,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1479 transitions. [2025-03-14 01:36:20,887 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9029304029304029 [2025-03-14 01:36:20,887 INFO L175 Difference]: Start difference. First operand has 400 places, 558 transitions, 4735 flow. Second operand 9 states and 1479 transitions. [2025-03-14 01:36:20,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 632 transitions, 6071 flow [2025-03-14 01:36:21,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 632 transitions, 5865 flow, removed 73 selfloop flow, removed 4 redundant places. [2025-03-14 01:36:21,192 INFO L231 Difference]: Finished difference. Result has 408 places, 568 transitions, 4915 flow [2025-03-14 01:36:21,193 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=4627, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4915, PETRI_PLACES=408, PETRI_TRANSITIONS=568} [2025-03-14 01:36:21,193 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 226 predicate places. [2025-03-14 01:36:21,193 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 568 transitions, 4915 flow [2025-03-14 01:36:21,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:36:21,194 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:21,194 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:21,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-14 01:36:21,194 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:36:21,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:21,195 INFO L85 PathProgramCache]: Analyzing trace with hash -278668322, now seen corresponding path program 13 times [2025-03-14 01:36:21,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:21,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427331170] [2025-03-14 01:36:21,195 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 01:36:21,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:21,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-14 01:36:21,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-14 01:36:21,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:36:21,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:21,710 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:36:21,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:21,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427331170] [2025-03-14 01:36:21,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427331170] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:21,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:21,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-14 01:36:21,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090663244] [2025-03-14 01:36:21,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:21,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 01:36:21,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:21,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 01:36:21,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-14 01:36:22,294 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-14 01:36:22,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 568 transitions, 4915 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:36:22,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:22,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-14 01:36:22,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:25,332 INFO L124 PetriNetUnfolderBase]: 4685/17399 cut-off events. [2025-03-14 01:36:25,332 INFO L125 PetriNetUnfolderBase]: For 62894/63727 co-relation queries the response was YES. [2025-03-14 01:36:25,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60279 conditions, 17399 events. 4685/17399 cut-off events. For 62894/63727 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 186392 event pairs, 453 based on Foata normal form. 184/17371 useless extension candidates. Maximal degree in co-relation 59930. Up to 2755 conditions per place. [2025-03-14 01:36:25,495 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 192 selfloop transitions, 66 changer transitions 0/638 dead transitions. [2025-03-14 01:36:25,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 638 transitions, 6128 flow [2025-03-14 01:36:25,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-14 01:36:25,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-14 01:36:25,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1473 transitions. [2025-03-14 01:36:25,497 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8992673992673993 [2025-03-14 01:36:25,497 INFO L175 Difference]: Start difference. First operand has 408 places, 568 transitions, 4915 flow. Second operand 9 states and 1473 transitions. [2025-03-14 01:36:25,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 638 transitions, 6128 flow [2025-03-14 01:36:25,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 638 transitions, 6031 flow, removed 9 selfloop flow, removed 4 redundant places. [2025-03-14 01:36:25,771 INFO L231 Difference]: Finished difference. Result has 415 places, 577 transitions, 5143 flow [2025-03-14 01:36:25,771 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=4827, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=505, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5143, PETRI_PLACES=415, PETRI_TRANSITIONS=577} [2025-03-14 01:36:25,771 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 233 predicate places. [2025-03-14 01:36:25,772 INFO L471 AbstractCegarLoop]: Abstraction has has 415 places, 577 transitions, 5143 flow [2025-03-14 01:36:25,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:36:25,772 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:25,772 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:25,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-14 01:36:25,773 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:36:25,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:25,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1673346218, now seen corresponding path program 14 times [2025-03-14 01:36:25,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:25,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417941091] [2025-03-14 01:36:25,774 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:36:25,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:25,785 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-14 01:36:25,791 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-14 01:36:25,791 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:36:25,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:25,993 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:36:25,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:25,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417941091] [2025-03-14 01:36:25,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417941091] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:25,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:25,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-14 01:36:25,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236675855] [2025-03-14 01:36:25,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:25,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 01:36:25,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:25,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 01:36:25,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-14 01:36:26,605 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-14 01:36:26,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 577 transitions, 5143 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:36:26,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:26,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-14 01:36:26,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:29,732 INFO L124 PetriNetUnfolderBase]: 4684/17407 cut-off events. [2025-03-14 01:36:29,732 INFO L125 PetriNetUnfolderBase]: For 64298/65195 co-relation queries the response was YES. [2025-03-14 01:36:29,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60504 conditions, 17407 events. 4684/17407 cut-off events. For 64298/65195 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 186550 event pairs, 451 based on Foata normal form. 181/17374 useless extension candidates. Maximal degree in co-relation 60152. Up to 2755 conditions per place. [2025-03-14 01:36:29,903 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 202 selfloop transitions, 62 changer transitions 0/644 dead transitions. [2025-03-14 01:36:29,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 644 transitions, 6353 flow [2025-03-14 01:36:29,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-14 01:36:29,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-14 01:36:29,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1474 transitions. [2025-03-14 01:36:29,905 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8998778998778999 [2025-03-14 01:36:29,905 INFO L175 Difference]: Start difference. First operand has 415 places, 577 transitions, 5143 flow. Second operand 9 states and 1474 transitions. [2025-03-14 01:36:29,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 644 transitions, 6353 flow [2025-03-14 01:36:30,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 644 transitions, 6221 flow, removed 11 selfloop flow, removed 5 redundant places. [2025-03-14 01:36:30,179 INFO L231 Difference]: Finished difference. Result has 422 places, 585 transitions, 5341 flow [2025-03-14 01:36:30,179 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=5019, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=577, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5341, PETRI_PLACES=422, PETRI_TRANSITIONS=585} [2025-03-14 01:36:30,179 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 240 predicate places. [2025-03-14 01:36:30,179 INFO L471 AbstractCegarLoop]: Abstraction has has 422 places, 585 transitions, 5341 flow [2025-03-14 01:36:30,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:36:30,180 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:30,180 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:30,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-14 01:36:30,180 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:36:30,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:30,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1515371174, now seen corresponding path program 15 times [2025-03-14 01:36:30,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:30,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793405195] [2025-03-14 01:36:30,181 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 01:36:30,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:30,189 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-14 01:36:30,192 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-14 01:36:30,193 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 01:36:30,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:30,479 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:36:30,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:30,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793405195] [2025-03-14 01:36:30,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793405195] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:30,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:30,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-14 01:36:30,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377382080] [2025-03-14 01:36:30,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:30,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 01:36:30,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:30,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 01:36:30,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-14 01:36:31,067 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-14 01:36:31,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 585 transitions, 5341 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:36:31,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:31,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-14 01:36:31,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:33,965 INFO L124 PetriNetUnfolderBase]: 4411/16574 cut-off events. [2025-03-14 01:36:33,966 INFO L125 PetriNetUnfolderBase]: For 61535/62336 co-relation queries the response was YES. [2025-03-14 01:36:34,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57539 conditions, 16574 events. 4411/16574 cut-off events. For 61535/62336 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 175856 event pairs, 450 based on Foata normal form. 164/16532 useless extension candidates. Maximal degree in co-relation 57183. Up to 2594 conditions per place. [2025-03-14 01:36:34,113 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 198 selfloop transitions, 64 changer transitions 0/642 dead transitions. [2025-03-14 01:36:34,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 642 transitions, 6405 flow [2025-03-14 01:36:34,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-14 01:36:34,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-14 01:36:34,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1476 transitions. [2025-03-14 01:36:34,114 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9010989010989011 [2025-03-14 01:36:34,114 INFO L175 Difference]: Start difference. First operand has 422 places, 585 transitions, 5341 flow. Second operand 9 states and 1476 transitions. [2025-03-14 01:36:34,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 642 transitions, 6405 flow [2025-03-14 01:36:34,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 642 transitions, 6289 flow, removed 18 selfloop flow, removed 4 redundant places. [2025-03-14 01:36:34,405 INFO L231 Difference]: Finished difference. Result has 429 places, 592 transitions, 5531 flow [2025-03-14 01:36:34,405 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=5183, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=583, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=522, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5531, PETRI_PLACES=429, PETRI_TRANSITIONS=592} [2025-03-14 01:36:34,406 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 247 predicate places. [2025-03-14 01:36:34,406 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 592 transitions, 5531 flow [2025-03-14 01:36:34,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 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) [2025-03-14 01:36:34,406 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:34,407 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:34,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-14 01:36:34,407 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-14 01:36:34,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:34,408 INFO L85 PathProgramCache]: Analyzing trace with hash 321531544, now seen corresponding path program 16 times [2025-03-14 01:36:34,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:34,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783934689] [2025-03-14 01:36:34,408 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 01:36:34,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:34,420 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-14 01:36:34,432 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-14 01:36:34,433 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-14 01:36:34,433 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:34,995 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:36:34,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:34,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783934689] [2025-03-14 01:36:34,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783934689] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:34,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:34,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-14 01:36:34,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404384556] [2025-03-14 01:36:34,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:34,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 01:36:34,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:34,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 01:36:34,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-14 01:36:35,820 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-14 01:36:35,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 592 transitions, 5531 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 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) [2025-03-14 01:36:35,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:35,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-14 01:36:35,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand