./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.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 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:04:23,276 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:04:23,324 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-17 11:04:23,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:04:23,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:04:23,352 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:04:23,352 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:04:23,352 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:04:23,353 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:04:23,353 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:04:23,353 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:04:23,353 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:04:23,353 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:04:23,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:04:23,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:04:23,354 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:04:23,354 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:04:23,354 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:04:23,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:04:23,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:04:23,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:04:23,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:04:23,354 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-17 11:04:23,354 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:04:23,354 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:04:23,354 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:04:23,355 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:04:23,355 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:04:23,355 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:04:23,355 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:04:23,355 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:04:23,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:04:23,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:04:23,355 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:04:23,355 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 11:04:23,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 11:04:23,355 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:04:23,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:04:23,356 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:04:23,356 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:04:23,356 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:04:23,356 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:04:23,356 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 -> 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 [2025-03-17 11:04:23,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:04:23,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:04:23,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:04:23,590 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:04:23,590 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:04:23,591 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2025-03-17 11:04:24,735 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3559c6aa6/4442943c9ae647f29de133960374e08e/FLAGc07c45679 [2025-03-17 11:04:24,999 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:04:24,999 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2025-03-17 11:04:25,013 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3559c6aa6/4442943c9ae647f29de133960374e08e/FLAGc07c45679 [2025-03-17 11:04:25,309 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3559c6aa6/4442943c9ae647f29de133960374e08e [2025-03-17 11:04:25,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:04:25,312 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:04:25,313 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:04:25,313 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:04:25,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:04:25,317 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:04:25" (1/1) ... [2025-03-17 11:04:25,317 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@daa0f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:25, skipping insertion in model container [2025-03-17 11:04:25,317 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:04:25" (1/1) ... [2025-03-17 11:04:25,353 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:04:25,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:04:25,639 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:04:25,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:04:25,718 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:04:25,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:25 WrapperNode [2025-03-17 11:04:25,719 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:04:25,720 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:04:25,720 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:04:25,721 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:04:25,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:25" (1/1) ... [2025-03-17 11:04:25,738 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:25" (1/1) ... [2025-03-17 11:04:25,757 INFO L138 Inliner]: procedures = 263, calls = 72, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 164 [2025-03-17 11:04:25,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:04:25,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:04:25,758 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:04:25,758 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:04:25,763 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:25" (1/1) ... [2025-03-17 11:04:25,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:25" (1/1) ... [2025-03-17 11:04:25,767 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:25" (1/1) ... [2025-03-17 11:04:25,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:25" (1/1) ... [2025-03-17 11:04:25,773 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:25" (1/1) ... [2025-03-17 11:04:25,774 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:25" (1/1) ... [2025-03-17 11:04:25,775 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:25" (1/1) ... [2025-03-17 11:04:25,776 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:25" (1/1) ... [2025-03-17 11:04:25,777 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:04:25,778 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:04:25,778 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:04:25,778 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:04:25,779 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:25" (1/1) ... [2025-03-17 11:04:25,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:04:25,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:04:25,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 11:04:25,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 11:04:25,831 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-17 11:04:25,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-17 11:04:25,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-17 11:04:25,831 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-17 11:04:25,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 11:04:25,831 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-17 11:04:25,831 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-17 11:04:25,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 11:04:25,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:04:25,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:04:25,832 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 11:04:25,917 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:04:25,919 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:04:26,199 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 11:04:26,199 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:04:26,217 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:04:26,218 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:04:26,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:04:26 BoogieIcfgContainer [2025-03-17 11:04:26,218 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:04:26,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:04:26,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:04:26,224 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:04:26,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:04:25" (1/3) ... [2025-03-17 11:04:26,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af0cb62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:04:26, skipping insertion in model container [2025-03-17 11:04:26,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:25" (2/3) ... [2025-03-17 11:04:26,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af0cb62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:04:26, skipping insertion in model container [2025-03-17 11:04:26,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:04:26" (3/3) ... [2025-03-17 11:04:26,226 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_03-funloop_simple.i [2025-03-17 11:04:26,237 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:04:26,239 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_03-funloop_simple.i that has 2 procedures, 176 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2025-03-17 11:04:26,239 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 11:04:26,301 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 11:04:26,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 178 transitions, 360 flow [2025-03-17 11:04:26,418 INFO L124 PetriNetUnfolderBase]: 3/177 cut-off events. [2025-03-17 11:04:26,420 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 11:04:26,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 177 events. 3/177 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 218 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2025-03-17 11:04:26,425 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 178 transitions, 360 flow [2025-03-17 11:04:26,431 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 178 places, 177 transitions, 357 flow [2025-03-17 11:04:26,438 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:04:26,447 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;@4acb09a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:04:26,448 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-17 11:04:26,472 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 11:04:26,473 INFO L124 PetriNetUnfolderBase]: 1/109 cut-off events. [2025-03-17 11:04:26,473 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 11:04:26,473 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:26,474 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] [2025-03-17 11:04:26,474 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)] === [2025-03-17 11:04:26,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:26,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1556151191, now seen corresponding path program 1 times [2025-03-17 11:04:26,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:26,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748526784] [2025-03-17 11:04:26,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:26,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:26,596 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-03-17 11:04:26,630 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-03-17 11:04:26,630 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:26,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:26,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:26,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:26,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748526784] [2025-03-17 11:04:26,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748526784] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:26,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:26,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:04:26,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916088057] [2025-03-17 11:04:26,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:26,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:04:26,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:26,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:04:26,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:04:26,916 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 178 [2025-03-17 11:04:26,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 177 transitions, 357 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:26,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:26,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 178 [2025-03-17 11:04:26,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:26,994 INFO L124 PetriNetUnfolderBase]: 12/295 cut-off events. [2025-03-17 11:04:26,995 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 11:04:26,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 295 events. 12/295 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 691 event pairs, 6 based on Foata normal form. 1/277 useless extension candidates. Maximal degree in co-relation 231. Up to 27 conditions per place. [2025-03-17 11:04:26,999 INFO L140 encePairwiseOnDemand]: 175/178 looper letters, 10 selfloop transitions, 2 changer transitions 0/178 dead transitions. [2025-03-17 11:04:27,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 178 transitions, 383 flow [2025-03-17 11:04:27,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:04:27,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:04:27,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 514 transitions. [2025-03-17 11:04:27,011 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9625468164794008 [2025-03-17 11:04:27,012 INFO L175 Difference]: Start difference. First operand has 178 places, 177 transitions, 357 flow. Second operand 3 states and 514 transitions. [2025-03-17 11:04:27,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 178 transitions, 383 flow [2025-03-17 11:04:27,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 178 transitions, 382 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 11:04:27,019 INFO L231 Difference]: Finished difference. Result has 180 places, 178 transitions, 368 flow [2025-03-17 11:04:27,021 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=180, PETRI_TRANSITIONS=178} [2025-03-17 11:04:27,025 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 2 predicate places. [2025-03-17 11:04:27,027 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 178 transitions, 368 flow [2025-03-17 11:04:27,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:27,028 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:27,028 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] [2025-03-17 11:04:27,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 11:04:27,029 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)] === [2025-03-17 11:04:27,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:27,030 INFO L85 PathProgramCache]: Analyzing trace with hash 288532539, now seen corresponding path program 1 times [2025-03-17 11:04:27,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:27,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981660158] [2025-03-17 11:04:27,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:27,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:27,047 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-17 11:04:27,068 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-17 11:04:27,068 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:27,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:27,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:27,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:27,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981660158] [2025-03-17 11:04:27,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981660158] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 11:04:27,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197513902] [2025-03-17 11:04:27,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:27,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:04:27,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:04:27,190 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) [2025-03-17 11:04:27,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 11:04:27,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-17 11:04:27,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-17 11:04:27,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:27,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:27,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 11:04:27,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:04:27,292 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 11:04:27,292 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:04:27,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197513902] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:27,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 11:04:27,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-17 11:04:27,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899660813] [2025-03-17 11:04:27,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:27,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:04:27,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:27,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:04:27,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:04:27,306 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 178 [2025-03-17 11:04:27,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 178 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:27,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:27,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 178 [2025-03-17 11:04:27,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:27,382 INFO L124 PetriNetUnfolderBase]: 29/463 cut-off events. [2025-03-17 11:04:27,382 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 11:04:27,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 463 events. 29/463 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1589 event pairs, 8 based on Foata normal form. 3/434 useless extension candidates. Maximal degree in co-relation 451. Up to 39 conditions per place. [2025-03-17 11:04:27,385 INFO L140 encePairwiseOnDemand]: 175/178 looper letters, 14 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2025-03-17 11:04:27,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 183 transitions, 410 flow [2025-03-17 11:04:27,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:04:27,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:04:27,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2025-03-17 11:04:27,387 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9700374531835206 [2025-03-17 11:04:27,387 INFO L175 Difference]: Start difference. First operand has 180 places, 178 transitions, 368 flow. Second operand 3 states and 518 transitions. [2025-03-17 11:04:27,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 183 transitions, 410 flow [2025-03-17 11:04:27,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 183 transitions, 408 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 11:04:27,390 INFO L231 Difference]: Finished difference. Result has 182 places, 179 transitions, 378 flow [2025-03-17 11:04:27,390 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=182, PETRI_TRANSITIONS=179} [2025-03-17 11:04:27,391 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 4 predicate places. [2025-03-17 11:04:27,391 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 179 transitions, 378 flow [2025-03-17 11:04:27,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:27,391 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:27,391 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] [2025-03-17 11:04:27,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 11:04:27,592 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 [2025-03-17 11:04:27,592 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)] === [2025-03-17 11:04:27,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:27,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1409339870, now seen corresponding path program 1 times [2025-03-17 11:04:27,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:27,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44220797] [2025-03-17 11:04:27,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:27,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:27,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-17 11:04:27,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-17 11:04:27,618 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:27,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:27,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:27,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:27,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44220797] [2025-03-17 11:04:27,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44220797] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 11:04:27,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820653515] [2025-03-17 11:04:27,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:27,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:04:27,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:04:27,773 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) [2025-03-17 11:04:27,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 11:04:27,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-17 11:04:27,861 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-17 11:04:27,861 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:27,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:27,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 11:04:27,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:04:27,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:27,913 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:04:27,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:27,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820653515] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:04:27,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 11:04:27,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-17 11:04:27,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95781753] [2025-03-17 11:04:27,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 11:04:27,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:04:27,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:27,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:04:27,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-17 11:04:28,020 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 178 [2025-03-17 11:04:28,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 179 transitions, 378 flow. Second operand has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:28,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:28,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 178 [2025-03-17 11:04:28,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:28,138 INFO L124 PetriNetUnfolderBase]: 18/409 cut-off events. [2025-03-17 11:04:28,138 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 11:04:28,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 409 events. 18/409 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1049 event pairs, 10 based on Foata normal form. 2/383 useless extension candidates. Maximal degree in co-relation 366. Up to 39 conditions per place. [2025-03-17 11:04:28,140 INFO L140 encePairwiseOnDemand]: 172/178 looper letters, 14 selfloop transitions, 9 changer transitions 0/187 dead transitions. [2025-03-17 11:04:28,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 187 transitions, 442 flow [2025-03-17 11:04:28,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:04:28,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:04:28,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1501 transitions. [2025-03-17 11:04:28,143 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9369538077403246 [2025-03-17 11:04:28,143 INFO L175 Difference]: Start difference. First operand has 182 places, 179 transitions, 378 flow. Second operand 9 states and 1501 transitions. [2025-03-17 11:04:28,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 187 transitions, 442 flow [2025-03-17 11:04:28,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 187 transitions, 440 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 11:04:28,162 INFO L231 Difference]: Finished difference. Result has 192 places, 185 transitions, 426 flow [2025-03-17 11:04:28,162 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=426, PETRI_PLACES=192, PETRI_TRANSITIONS=185} [2025-03-17 11:04:28,163 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 14 predicate places. [2025-03-17 11:04:28,163 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 185 transitions, 426 flow [2025-03-17 11:04:28,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:28,164 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:28,164 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] [2025-03-17 11:04:28,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 11:04:28,364 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 [2025-03-17 11:04:28,365 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)] === [2025-03-17 11:04:28,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:28,366 INFO L85 PathProgramCache]: Analyzing trace with hash 935393374, now seen corresponding path program 2 times [2025-03-17 11:04:28,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:28,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194806143] [2025-03-17 11:04:28,366 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:04:28,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:28,382 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 105 statements into 2 equivalence classes. [2025-03-17 11:04:28,392 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 105 statements. [2025-03-17 11:04:28,393 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:04:28,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:28,805 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-17 11:04:28,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:28,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194806143] [2025-03-17 11:04:28,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194806143] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:28,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:28,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:04:28,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842194176] [2025-03-17 11:04:28,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:28,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:04:28,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:28,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:04:28,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:04:28,971 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-17 11:04:28,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 185 transitions, 426 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:28,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:28,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-17 11:04:28,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:29,218 INFO L124 PetriNetUnfolderBase]: 319/1503 cut-off events. [2025-03-17 11:04:29,218 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-17 11:04:29,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2186 conditions, 1503 events. 319/1503 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 9664 event pairs, 148 based on Foata normal form. 0/1413 useless extension candidates. Maximal degree in co-relation 2074. Up to 516 conditions per place. [2025-03-17 11:04:29,228 INFO L140 encePairwiseOnDemand]: 167/178 looper letters, 34 selfloop transitions, 22 changer transitions 0/214 dead transitions. [2025-03-17 11:04:29,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 214 transitions, 596 flow [2025-03-17 11:04:29,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:04:29,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:04:29,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 963 transitions. [2025-03-17 11:04:29,259 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.901685393258427 [2025-03-17 11:04:29,259 INFO L175 Difference]: Start difference. First operand has 192 places, 185 transitions, 426 flow. Second operand 6 states and 963 transitions. [2025-03-17 11:04:29,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 214 transitions, 596 flow [2025-03-17 11:04:29,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 214 transitions, 590 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-03-17 11:04:29,263 INFO L231 Difference]: Finished difference. Result has 201 places, 206 transitions, 570 flow [2025-03-17 11:04:29,264 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=570, PETRI_PLACES=201, PETRI_TRANSITIONS=206} [2025-03-17 11:04:29,264 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 23 predicate places. [2025-03-17 11:04:29,264 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 206 transitions, 570 flow [2025-03-17 11:04:29,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:29,265 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:29,265 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] [2025-03-17 11:04:29,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 11:04:29,265 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)] === [2025-03-17 11:04:29,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:29,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2041840914, now seen corresponding path program 1 times [2025-03-17 11:04:29,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:29,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691861611] [2025-03-17 11:04:29,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:29,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:29,279 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-17 11:04:29,285 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-17 11:04:29,285 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:29,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:29,399 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:29,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:29,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691861611] [2025-03-17 11:04:29,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691861611] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 11:04:29,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136442952] [2025-03-17 11:04:29,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:29,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:04:29,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:04:29,402 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) [2025-03-17 11:04:29,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 11:04:29,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-17 11:04:29,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-17 11:04:29,483 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:29,483 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:29,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 11:04:29,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:04:29,538 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:29,538 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:04:29,622 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:29,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136442952] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:04:29,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 11:04:29,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-03-17 11:04:29,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246042479] [2025-03-17 11:04:29,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 11:04:29,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 11:04:29,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:29,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 11:04:29,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-17 11:04:29,658 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 178 [2025-03-17 11:04:29,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 206 transitions, 570 flow. Second operand has 18 states, 18 states have (on average 166.0) internal successors, (2988), 18 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:29,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:29,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 178 [2025-03-17 11:04:29,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:29,913 INFO L124 PetriNetUnfolderBase]: 112/1029 cut-off events. [2025-03-17 11:04:29,913 INFO L125 PetriNetUnfolderBase]: For 77/83 co-relation queries the response was YES. [2025-03-17 11:04:29,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1507 conditions, 1029 events. 112/1029 cut-off events. For 77/83 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5180 event pairs, 20 based on Foata normal form. 4/965 useless extension candidates. Maximal degree in co-relation 1318. Up to 125 conditions per place. [2025-03-17 11:04:29,920 INFO L140 encePairwiseOnDemand]: 172/178 looper letters, 18 selfloop transitions, 21 changer transitions 0/224 dead transitions. [2025-03-17 11:04:29,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 224 transitions, 736 flow [2025-03-17 11:04:29,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-17 11:04:29,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-17 11:04:29,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3487 transitions. [2025-03-17 11:04:29,925 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9328517924023542 [2025-03-17 11:04:29,925 INFO L175 Difference]: Start difference. First operand has 201 places, 206 transitions, 570 flow. Second operand 21 states and 3487 transitions. [2025-03-17 11:04:29,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 224 transitions, 736 flow [2025-03-17 11:04:29,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 224 transitions, 736 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:04:29,929 INFO L231 Difference]: Finished difference. Result has 226 places, 219 transitions, 700 flow [2025-03-17 11:04:29,930 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=700, PETRI_PLACES=226, PETRI_TRANSITIONS=219} [2025-03-17 11:04:29,930 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 48 predicate places. [2025-03-17 11:04:29,930 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 219 transitions, 700 flow [2025-03-17 11:04:29,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 166.0) internal successors, (2988), 18 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:29,932 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:29,932 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] [2025-03-17 11:04:29,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 11:04:30,132 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 [2025-03-17 11:04:30,133 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)] === [2025-03-17 11:04:30,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:30,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1761480174, now seen corresponding path program 2 times [2025-03-17 11:04:30,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:30,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189318300] [2025-03-17 11:04:30,134 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:04:30,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:30,143 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 125 statements into 2 equivalence classes. [2025-03-17 11:04:30,149 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 125 statements. [2025-03-17 11:04:30,150 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:04:30,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:30,398 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-17 11:04:30,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:30,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189318300] [2025-03-17 11:04:30,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189318300] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:30,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:30,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:04:30,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225900461] [2025-03-17 11:04:30,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:30,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:04:30,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:30,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:04:30,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:04:30,560 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-17 11:04:30,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 219 transitions, 700 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:30,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:30,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-17 11:04:30,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:30,891 INFO L124 PetriNetUnfolderBase]: 461/2276 cut-off events. [2025-03-17 11:04:30,891 INFO L125 PetriNetUnfolderBase]: For 409/439 co-relation queries the response was YES. [2025-03-17 11:04:30,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3871 conditions, 2276 events. 461/2276 cut-off events. For 409/439 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 16386 event pairs, 172 based on Foata normal form. 5/2149 useless extension candidates. Maximal degree in co-relation 3675. Up to 758 conditions per place. [2025-03-17 11:04:30,903 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 51 selfloop transitions, 46 changer transitions 0/272 dead transitions. [2025-03-17 11:04:30,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 272 transitions, 1042 flow [2025-03-17 11:04:30,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:04:30,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:04:30,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 979 transitions. [2025-03-17 11:04:30,906 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2025-03-17 11:04:30,906 INFO L175 Difference]: Start difference. First operand has 226 places, 219 transitions, 700 flow. Second operand 6 states and 979 transitions. [2025-03-17 11:04:30,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 272 transitions, 1042 flow [2025-03-17 11:04:30,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 272 transitions, 1018 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-03-17 11:04:30,916 INFO L231 Difference]: Finished difference. Result has 230 places, 264 transitions, 1030 flow [2025-03-17 11:04:30,916 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1030, PETRI_PLACES=230, PETRI_TRANSITIONS=264} [2025-03-17 11:04:30,918 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 52 predicate places. [2025-03-17 11:04:30,918 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 264 transitions, 1030 flow [2025-03-17 11:04:30,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:30,919 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:30,919 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] [2025-03-17 11:04:30,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 11:04:30,920 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)] === [2025-03-17 11:04:30,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:30,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1847776909, now seen corresponding path program 1 times [2025-03-17 11:04:30,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:30,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883704644] [2025-03-17 11:04:30,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:30,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:30,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-17 11:04:30,946 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-17 11:04:30,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:30,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:31,245 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:31,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:31,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883704644] [2025-03-17 11:04:31,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883704644] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 11:04:31,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090673620] [2025-03-17 11:04:31,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:31,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:04:31,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:04:31,251 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) [2025-03-17 11:04:31,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 11:04:31,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-17 11:04:31,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-17 11:04:31,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:31,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:31,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-17 11:04:31,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:04:31,448 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:31,448 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:04:31,627 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:31,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090673620] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:04:31,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 11:04:31,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-03-17 11:04:31,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027185864] [2025-03-17 11:04:31,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 11:04:31,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-17 11:04:31,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:31,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-17 11:04:31,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-03-17 11:04:31,675 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 178 [2025-03-17 11:04:31,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 264 transitions, 1030 flow. Second operand has 23 states, 23 states have (on average 166.08695652173913) internal successors, (3820), 23 states have internal predecessors, (3820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:31,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:31,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 178 [2025-03-17 11:04:31,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:32,062 INFO L124 PetriNetUnfolderBase]: 252/1636 cut-off events. [2025-03-17 11:04:32,063 INFO L125 PetriNetUnfolderBase]: For 592/624 co-relation queries the response was YES. [2025-03-17 11:04:32,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3003 conditions, 1636 events. 252/1636 cut-off events. For 592/624 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10716 event pairs, 36 based on Foata normal form. 13/1567 useless extension candidates. Maximal degree in co-relation 2726. Up to 202 conditions per place. [2025-03-17 11:04:32,071 INFO L140 encePairwiseOnDemand]: 172/178 looper letters, 21 selfloop transitions, 30 changer transitions 0/281 dead transitions. [2025-03-17 11:04:32,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 281 transitions, 1254 flow [2025-03-17 11:04:32,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-17 11:04:32,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-17 11:04:32,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4974 transitions. [2025-03-17 11:04:32,079 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9314606741573034 [2025-03-17 11:04:32,079 INFO L175 Difference]: Start difference. First operand has 230 places, 264 transitions, 1030 flow. Second operand 30 states and 4974 transitions. [2025-03-17 11:04:32,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 281 transitions, 1254 flow [2025-03-17 11:04:32,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 281 transitions, 1254 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:04:32,089 INFO L231 Difference]: Finished difference. Result has 263 places, 274 transitions, 1182 flow [2025-03-17 11:04:32,090 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1182, PETRI_PLACES=263, PETRI_TRANSITIONS=274} [2025-03-17 11:04:32,092 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 85 predicate places. [2025-03-17 11:04:32,092 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 274 transitions, 1182 flow [2025-03-17 11:04:32,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 166.08695652173913) internal successors, (3820), 23 states have internal predecessors, (3820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:32,094 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:32,094 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] [2025-03-17 11:04:32,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 11:04:32,294 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 [2025-03-17 11:04:32,295 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)] === [2025-03-17 11:04:32,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:32,295 INFO L85 PathProgramCache]: Analyzing trace with hash 973490071, now seen corresponding path program 2 times [2025-03-17 11:04:32,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:32,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829789087] [2025-03-17 11:04:32,295 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:04:32,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:32,307 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 148 statements into 2 equivalence classes. [2025-03-17 11:04:32,311 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 98 of 148 statements. [2025-03-17 11:04:32,312 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:04:32,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:32,522 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:32,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:32,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829789087] [2025-03-17 11:04:32,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829789087] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:32,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:32,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:04:32,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46951949] [2025-03-17 11:04:32,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:32,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:04:32,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:32,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:04:32,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:04:32,662 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 178 [2025-03-17 11:04:32,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 274 transitions, 1182 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:32,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:32,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 178 [2025-03-17 11:04:32,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:33,084 INFO L124 PetriNetUnfolderBase]: 918/3214 cut-off events. [2025-03-17 11:04:33,084 INFO L125 PetriNetUnfolderBase]: For 1990/2082 co-relation queries the response was YES. [2025-03-17 11:04:33,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7339 conditions, 3214 events. 918/3214 cut-off events. For 1990/2082 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 22920 event pairs, 283 based on Foata normal form. 19/3079 useless extension candidates. Maximal degree in co-relation 7061. Up to 1571 conditions per place. [2025-03-17 11:04:33,103 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 100 selfloop transitions, 57 changer transitions 0/329 dead transitions. [2025-03-17 11:04:33,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 329 transitions, 1740 flow [2025-03-17 11:04:33,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:04:33,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:04:33,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 929 transitions. [2025-03-17 11:04:33,108 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8698501872659176 [2025-03-17 11:04:33,108 INFO L175 Difference]: Start difference. First operand has 263 places, 274 transitions, 1182 flow. Second operand 6 states and 929 transitions. [2025-03-17 11:04:33,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 329 transitions, 1740 flow [2025-03-17 11:04:33,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 329 transitions, 1694 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-03-17 11:04:33,126 INFO L231 Difference]: Finished difference. Result has 255 places, 321 transitions, 1634 flow [2025-03-17 11:04:33,127 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1634, PETRI_PLACES=255, PETRI_TRANSITIONS=321} [2025-03-17 11:04:33,129 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 77 predicate places. [2025-03-17 11:04:33,129 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 321 transitions, 1634 flow [2025-03-17 11:04:33,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:33,130 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:33,130 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] [2025-03-17 11:04:33,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 11:04:33,130 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)] === [2025-03-17 11:04:33,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:33,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1494178234, now seen corresponding path program 1 times [2025-03-17 11:04:33,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:33,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801336859] [2025-03-17 11:04:33,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:33,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:33,152 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-03-17 11:04:33,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-03-17 11:04:33,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:33,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:33,523 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:33,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:33,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801336859] [2025-03-17 11:04:33,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801336859] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:33,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:33,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:04:33,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117805867] [2025-03-17 11:04:33,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:33,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:04:33,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:33,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:04:33,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:04:33,615 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 178 [2025-03-17 11:04:33,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 321 transitions, 1634 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:33,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:33,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 178 [2025-03-17 11:04:33,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:34,206 INFO L124 PetriNetUnfolderBase]: 1259/4379 cut-off events. [2025-03-17 11:04:34,207 INFO L125 PetriNetUnfolderBase]: For 4859/4989 co-relation queries the response was YES. [2025-03-17 11:04:34,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11258 conditions, 4379 events. 1259/4379 cut-off events. For 4859/4989 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 33842 event pairs, 313 based on Foata normal form. 40/4238 useless extension candidates. Maximal degree in co-relation 10997. Up to 2094 conditions per place. [2025-03-17 11:04:34,231 INFO L140 encePairwiseOnDemand]: 155/178 looper letters, 137 selfloop transitions, 103 changer transitions 0/414 dead transitions. [2025-03-17 11:04:34,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 414 transitions, 2564 flow [2025-03-17 11:04:34,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:04:34,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:04:34,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 961 transitions. [2025-03-17 11:04:34,234 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.899812734082397 [2025-03-17 11:04:34,234 INFO L175 Difference]: Start difference. First operand has 255 places, 321 transitions, 1634 flow. Second operand 6 states and 961 transitions. [2025-03-17 11:04:34,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 414 transitions, 2564 flow [2025-03-17 11:04:34,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 414 transitions, 2500 flow, removed 32 selfloop flow, removed 0 redundant places. [2025-03-17 11:04:34,255 INFO L231 Difference]: Finished difference. Result has 265 places, 406 transitions, 2486 flow [2025-03-17 11:04:34,256 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=1576, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2486, PETRI_PLACES=265, PETRI_TRANSITIONS=406} [2025-03-17 11:04:34,256 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 87 predicate places. [2025-03-17 11:04:34,257 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 406 transitions, 2486 flow [2025-03-17 11:04:34,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:34,257 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:34,257 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] [2025-03-17 11:04:34,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 11:04:34,258 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)] === [2025-03-17 11:04:34,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:34,258 INFO L85 PathProgramCache]: Analyzing trace with hash -663147070, now seen corresponding path program 1 times [2025-03-17 11:04:34,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:34,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484132772] [2025-03-17 11:04:34,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:34,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:34,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-17 11:04:34,285 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:04:34,285 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:34,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:34,754 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:34,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:34,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484132772] [2025-03-17 11:04:34,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484132772] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:34,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:34,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:04:34,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333325343] [2025-03-17 11:04:34,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:34,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:04:34,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:34,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:04:34,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:04:35,932 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-17 11:04:35,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 406 transitions, 2486 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:35,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:35,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-17 11:04:35,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:36,611 INFO L124 PetriNetUnfolderBase]: 1203/4645 cut-off events. [2025-03-17 11:04:36,611 INFO L125 PetriNetUnfolderBase]: For 6288/6434 co-relation queries the response was YES. [2025-03-17 11:04:36,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12793 conditions, 4645 events. 1203/4645 cut-off events. For 6288/6434 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 38524 event pairs, 160 based on Foata normal form. 37/4621 useless extension candidates. Maximal degree in co-relation 12515. Up to 685 conditions per place. [2025-03-17 11:04:36,647 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 71 selfloop transitions, 15 changer transitions 0/464 dead transitions. [2025-03-17 11:04:36,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 464 transitions, 2774 flow [2025-03-17 11:04:36,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:04:36,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:04:36,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1447 transitions. [2025-03-17 11:04:36,650 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9032459425717853 [2025-03-17 11:04:36,650 INFO L175 Difference]: Start difference. First operand has 265 places, 406 transitions, 2486 flow. Second operand 9 states and 1447 transitions. [2025-03-17 11:04:36,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 464 transitions, 2774 flow [2025-03-17 11:04:36,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 464 transitions, 2660 flow, removed 57 selfloop flow, removed 0 redundant places. [2025-03-17 11:04:36,687 INFO L231 Difference]: Finished difference. Result has 280 places, 420 transitions, 2484 flow [2025-03-17 11:04:36,687 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=2372, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2484, PETRI_PLACES=280, PETRI_TRANSITIONS=420} [2025-03-17 11:04:36,687 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 102 predicate places. [2025-03-17 11:04:36,688 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 420 transitions, 2484 flow [2025-03-17 11:04:36,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:36,688 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:36,688 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] [2025-03-17 11:04:36,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 11:04:36,688 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)] === [2025-03-17 11:04:36,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:36,689 INFO L85 PathProgramCache]: Analyzing trace with hash 2002254362, now seen corresponding path program 2 times [2025-03-17 11:04:36,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:36,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805908411] [2025-03-17 11:04:36,690 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:04:36,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:36,701 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-17 11:04:36,709 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-17 11:04:36,710 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:04:36,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:36,978 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:36,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:36,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805908411] [2025-03-17 11:04:36,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805908411] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:36,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:36,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:04:36,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229970916] [2025-03-17 11:04:36,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:36,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:04:36,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:36,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:04:36,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:04:38,106 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-17 11:04:38,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 420 transitions, 2484 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:38,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:38,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-17 11:04:38,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:39,435 INFO L124 PetriNetUnfolderBase]: 2439/9042 cut-off events. [2025-03-17 11:04:39,435 INFO L125 PetriNetUnfolderBase]: For 12561/12878 co-relation queries the response was YES. [2025-03-17 11:04:39,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25916 conditions, 9042 events. 2439/9042 cut-off events. For 12561/12878 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 84954 event pairs, 305 based on Foata normal form. 97/9001 useless extension candidates. Maximal degree in co-relation 25630. Up to 1448 conditions per place. [2025-03-17 11:04:39,516 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 111 selfloop transitions, 20 changer transitions 2/511 dead transitions. [2025-03-17 11:04:39,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 511 transitions, 3166 flow [2025-03-17 11:04:39,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:04:39,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:04:39,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1447 transitions. [2025-03-17 11:04:39,519 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9032459425717853 [2025-03-17 11:04:39,519 INFO L175 Difference]: Start difference. First operand has 280 places, 420 transitions, 2484 flow. Second operand 9 states and 1447 transitions. [2025-03-17 11:04:39,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 511 transitions, 3166 flow [2025-03-17 11:04:39,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 511 transitions, 3156 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 11:04:39,576 INFO L231 Difference]: Finished difference. Result has 294 places, 437 transitions, 2663 flow [2025-03-17 11:04:39,577 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=2482, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2663, PETRI_PLACES=294, PETRI_TRANSITIONS=437} [2025-03-17 11:04:39,577 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 116 predicate places. [2025-03-17 11:04:39,577 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 437 transitions, 2663 flow [2025-03-17 11:04:39,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:39,578 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:39,578 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] [2025-03-17 11:04:39,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 11:04:39,578 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)] === [2025-03-17 11:04:39,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:39,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1353023070, now seen corresponding path program 3 times [2025-03-17 11:04:39,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:39,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517626956] [2025-03-17 11:04:39,579 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 11:04:39,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:39,592 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-17 11:04:39,602 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-17 11:04:39,602 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 11:04:39,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:39,856 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:39,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:39,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517626956] [2025-03-17 11:04:39,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517626956] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:39,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:39,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:04:39,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462113572] [2025-03-17 11:04:39,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:39,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:04:39,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:39,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:04:39,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:04:40,854 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-17 11:04:40,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 437 transitions, 2663 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:40,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:40,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-17 11:04:40,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:42,262 INFO L124 PetriNetUnfolderBase]: 2758/10077 cut-off events. [2025-03-17 11:04:42,263 INFO L125 PetriNetUnfolderBase]: For 16469/16888 co-relation queries the response was YES. [2025-03-17 11:04:42,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30343 conditions, 10077 events. 2758/10077 cut-off events. For 16469/16888 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 95615 event pairs, 310 based on Foata normal form. 106/10018 useless extension candidates. Maximal degree in co-relation 30049. Up to 1570 conditions per place. [2025-03-17 11:04:42,322 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 121 selfloop transitions, 22 changer transitions 0/521 dead transitions. [2025-03-17 11:04:42,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 521 transitions, 3447 flow [2025-03-17 11:04:42,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:04:42,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:04:42,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1452 transitions. [2025-03-17 11:04:42,324 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9063670411985019 [2025-03-17 11:04:42,324 INFO L175 Difference]: Start difference. First operand has 294 places, 437 transitions, 2663 flow. Second operand 9 states and 1452 transitions. [2025-03-17 11:04:42,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 521 transitions, 3447 flow [2025-03-17 11:04:42,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 521 transitions, 3409 flow, removed 19 selfloop flow, removed 0 redundant places. [2025-03-17 11:04:42,392 INFO L231 Difference]: Finished difference. Result has 307 places, 449 transitions, 2832 flow [2025-03-17 11:04:42,393 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=2649, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2832, PETRI_PLACES=307, PETRI_TRANSITIONS=449} [2025-03-17 11:04:42,393 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 129 predicate places. [2025-03-17 11:04:42,393 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 449 transitions, 2832 flow [2025-03-17 11:04:42,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:42,394 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:42,394 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] [2025-03-17 11:04:42,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 11:04:42,394 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)] === [2025-03-17 11:04:42,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:42,395 INFO L85 PathProgramCache]: Analyzing trace with hash 801215608, now seen corresponding path program 4 times [2025-03-17 11:04:42,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:42,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049975354] [2025-03-17 11:04:42,395 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 11:04:42,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:42,411 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-17 11:04:42,430 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:04:42,430 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 11:04:42,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:43,778 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:43,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:43,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049975354] [2025-03-17 11:04:43,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049975354] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:43,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:43,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-17 11:04:43,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714800822] [2025-03-17 11:04:43,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:43,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-17 11:04:43,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:43,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-17 11:04:43,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2025-03-17 11:04:45,861 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 178 [2025-03-17 11:04:45,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 449 transitions, 2832 flow. Second operand has 15 states, 15 states have (on average 132.53333333333333) internal successors, (1988), 15 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:45,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:45,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 178 [2025-03-17 11:04:45,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:48,701 INFO L124 PetriNetUnfolderBase]: 4848/14436 cut-off events. [2025-03-17 11:04:48,701 INFO L125 PetriNetUnfolderBase]: For 37061/37539 co-relation queries the response was YES. [2025-03-17 11:04:48,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51279 conditions, 14436 events. 4848/14436 cut-off events. For 37061/37539 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 134526 event pairs, 890 based on Foata normal form. 169/14377 useless extension candidates. Maximal degree in co-relation 50979. Up to 3372 conditions per place. [2025-03-17 11:04:48,784 INFO L140 encePairwiseOnDemand]: 147/178 looper letters, 702 selfloop transitions, 147 changer transitions 4/1054 dead transitions. [2025-03-17 11:04:48,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 1054 transitions, 9461 flow [2025-03-17 11:04:48,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-17 11:04:48,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-03-17 11:04:48,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2534 transitions. [2025-03-17 11:04:48,786 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8374091209517515 [2025-03-17 11:04:48,786 INFO L175 Difference]: Start difference. First operand has 307 places, 449 transitions, 2832 flow. Second operand 17 states and 2534 transitions. [2025-03-17 11:04:48,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 1054 transitions, 9461 flow [2025-03-17 11:04:48,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 1054 transitions, 9316 flow, removed 8 selfloop flow, removed 3 redundant places. [2025-03-17 11:04:48,891 INFO L231 Difference]: Finished difference. Result has 333 places, 582 transitions, 4869 flow [2025-03-17 11:04:48,891 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=2806, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4869, PETRI_PLACES=333, PETRI_TRANSITIONS=582} [2025-03-17 11:04:48,893 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 155 predicate places. [2025-03-17 11:04:48,893 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 582 transitions, 4869 flow [2025-03-17 11:04:48,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 132.53333333333333) internal successors, (1988), 15 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:48,894 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:48,894 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] [2025-03-17 11:04:48,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 11:04:48,895 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:04:48,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:48,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1250849073, now seen corresponding path program 1 times [2025-03-17 11:04:48,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:48,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290840490] [2025-03-17 11:04:48,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:48,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:48,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-17 11:04:48,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:04:48,931 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:48,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:49,293 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:49,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:49,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290840490] [2025-03-17 11:04:49,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290840490] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:49,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:49,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 11:04:49,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93262378] [2025-03-17 11:04:49,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:49,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:04:49,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:49,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:04:49,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-03-17 11:04:50,421 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-17 11:04:50,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 582 transitions, 4869 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:50,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:50,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-17 11:04:50,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:52,606 INFO L124 PetriNetUnfolderBase]: 3519/12699 cut-off events. [2025-03-17 11:04:52,606 INFO L125 PetriNetUnfolderBase]: For 39384/40266 co-relation queries the response was YES. [2025-03-17 11:04:52,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43127 conditions, 12699 events. 3519/12699 cut-off events. For 39384/40266 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 125530 event pairs, 332 based on Foata normal form. 152/12654 useless extension candidates. Maximal degree in co-relation 42815. Up to 2010 conditions per place. [2025-03-17 11:04:52,684 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 142 selfloop transitions, 43 changer transitions 0/665 dead transitions. [2025-03-17 11:04:52,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 665 transitions, 5933 flow [2025-03-17 11:04:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:04:52,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 11:04:52,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1606 transitions. [2025-03-17 11:04:52,685 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.902247191011236 [2025-03-17 11:04:52,685 INFO L175 Difference]: Start difference. First operand has 333 places, 582 transitions, 4869 flow. Second operand 10 states and 1606 transitions. [2025-03-17 11:04:52,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 665 transitions, 5933 flow [2025-03-17 11:04:52,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 665 transitions, 5829 flow, removed 23 selfloop flow, removed 2 redundant places. [2025-03-17 11:04:52,802 INFO L231 Difference]: Finished difference. Result has 346 places, 598 transitions, 5146 flow [2025-03-17 11:04:52,803 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=4808, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=544, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5146, PETRI_PLACES=346, PETRI_TRANSITIONS=598} [2025-03-17 11:04:52,803 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 168 predicate places. [2025-03-17 11:04:52,803 INFO L471 AbstractCegarLoop]: Abstraction has has 346 places, 598 transitions, 5146 flow [2025-03-17 11:04:52,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:52,803 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:52,804 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] [2025-03-17 11:04:52,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 11:04:52,804 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)] === [2025-03-17 11:04:52,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:52,804 INFO L85 PathProgramCache]: Analyzing trace with hash 766596836, now seen corresponding path program 5 times [2025-03-17 11:04:52,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:52,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314763389] [2025-03-17 11:04:52,805 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 11:04:52,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:52,814 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-17 11:04:52,826 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:04:52,826 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-17 11:04:52,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:53,439 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-03-17 11:04:53,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:53,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314763389] [2025-03-17 11:04:53,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314763389] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 11:04:53,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539915821] [2025-03-17 11:04:53,441 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 11:04:53,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:04:53,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:04:53,443 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) [2025-03-17 11:04:53,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 11:04:53,505 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-17 11:04:53,568 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:04:53,568 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-17 11:04:53,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:53,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-17 11:04:53,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:04:53,767 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 [2025-03-17 11:04:53,917 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:53,917 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:04:53,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539915821] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:53,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 11:04:53,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2025-03-17 11:04:53,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28818945] [2025-03-17 11:04:53,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:53,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:04:53,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:53,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:04:53,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2025-03-17 11:04:55,024 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-17 11:04:55,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 598 transitions, 5146 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:55,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:55,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-17 11:04:55,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:57,777 INFO L124 PetriNetUnfolderBase]: 3840/13961 cut-off events. [2025-03-17 11:04:57,777 INFO L125 PetriNetUnfolderBase]: For 47397/48322 co-relation queries the response was YES. [2025-03-17 11:04:57,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48571 conditions, 13961 events. 3840/13961 cut-off events. For 47397/48322 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 140972 event pairs, 359 based on Foata normal form. 156/13918 useless extension candidates. Maximal degree in co-relation 48251. Up to 2279 conditions per place. [2025-03-17 11:04:57,942 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 160 selfloop transitions, 44 changer transitions 1/685 dead transitions. [2025-03-17 11:04:57,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 685 transitions, 6353 flow [2025-03-17 11:04:57,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:04:57,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 11:04:57,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1606 transitions. [2025-03-17 11:04:57,944 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.902247191011236 [2025-03-17 11:04:57,944 INFO L175 Difference]: Start difference. First operand has 346 places, 598 transitions, 5146 flow. Second operand 10 states and 1606 transitions. [2025-03-17 11:04:57,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 685 transitions, 6353 flow [2025-03-17 11:04:58,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 685 transitions, 6238 flow, removed 24 selfloop flow, removed 3 redundant places. [2025-03-17 11:04:58,366 INFO L231 Difference]: Finished difference. Result has 358 places, 616 transitions, 5438 flow [2025-03-17 11:04:58,366 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=5066, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=598, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=559, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5438, PETRI_PLACES=358, PETRI_TRANSITIONS=616} [2025-03-17 11:04:58,367 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 180 predicate places. [2025-03-17 11:04:58,367 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 616 transitions, 5438 flow [2025-03-17 11:04:58,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:58,367 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:58,367 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] [2025-03-17 11:04:58,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 11:04:58,567 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,SelfDestructingSolverStorable14 [2025-03-17 11:04:58,568 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)] === [2025-03-17 11:04:58,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:58,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1973190610, now seen corresponding path program 6 times [2025-03-17 11:04:58,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:58,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143781335] [2025-03-17 11:04:58,569 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 11:04:58,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:58,580 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-03-17 11:04:58,584 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-17 11:04:58,585 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-17 11:04:58,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:58,746 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:58,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:58,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143781335] [2025-03-17 11:04:58,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143781335] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:58,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:58,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:04:58,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470809336] [2025-03-17 11:04:58,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:58,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:04:58,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:58,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:04:58,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:04:59,586 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-17 11:04:59,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 616 transitions, 5438 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:59,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:59,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-17 11:04:59,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:02,025 INFO L124 PetriNetUnfolderBase]: 4204/15144 cut-off events. [2025-03-17 11:05:02,025 INFO L125 PetriNetUnfolderBase]: For 56771/57858 co-relation queries the response was YES. [2025-03-17 11:05:02,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53917 conditions, 15144 events. 4204/15144 cut-off events. For 56771/57858 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 155532 event pairs, 441 based on Foata normal form. 161/15078 useless extension candidates. Maximal degree in co-relation 53591. Up to 2434 conditions per place. [2025-03-17 11:05:02,119 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 158 selfloop transitions, 53 changer transitions 0/691 dead transitions. [2025-03-17 11:05:02,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 691 transitions, 6654 flow [2025-03-17 11:05:02,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:05:02,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:05:02,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1457 transitions. [2025-03-17 11:05:02,120 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9094881398252185 [2025-03-17 11:05:02,120 INFO L175 Difference]: Start difference. First operand has 358 places, 616 transitions, 5438 flow. Second operand 9 states and 1457 transitions. [2025-03-17 11:05:02,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 691 transitions, 6654 flow [2025-03-17 11:05:02,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 691 transitions, 6566 flow, removed 19 selfloop flow, removed 3 redundant places. [2025-03-17 11:05:02,314 INFO L231 Difference]: Finished difference. Result has 370 places, 639 transitions, 5911 flow [2025-03-17 11:05:02,314 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=5372, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=572, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5911, PETRI_PLACES=370, PETRI_TRANSITIONS=639} [2025-03-17 11:05:02,315 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 192 predicate places. [2025-03-17 11:05:02,315 INFO L471 AbstractCegarLoop]: Abstraction has has 370 places, 639 transitions, 5911 flow [2025-03-17 11:05:02,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:05:02,315 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:02,315 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] [2025-03-17 11:05:02,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-17 11:05:02,315 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)] === [2025-03-17 11:05:02,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:02,316 INFO L85 PathProgramCache]: Analyzing trace with hash -778240214, now seen corresponding path program 7 times [2025-03-17 11:05:02,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:02,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791171405] [2025-03-17 11:05:02,316 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 11:05:02,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:02,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-17 11:05:02,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:05:02,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:05:02,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:02,627 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:05:02,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:02,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791171405] [2025-03-17 11:05:02,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791171405] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:02,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:02,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:05:02,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633347136] [2025-03-17 11:05:02,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:02,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:05:02,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:02,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:05:02,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:05:03,162 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-17 11:05:03,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 639 transitions, 5911 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:05:03,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:03,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-17 11:05:03,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:06,805 INFO L124 PetriNetUnfolderBase]: 4822/17143 cut-off events. [2025-03-17 11:05:06,805 INFO L125 PetriNetUnfolderBase]: For 70836/72041 co-relation queries the response was YES. [2025-03-17 11:05:06,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62467 conditions, 17143 events. 4822/17143 cut-off events. For 70836/72041 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 181382 event pairs, 449 based on Foata normal form. 193/17089 useless extension candidates. Maximal degree in co-relation 62135. Up to 2819 conditions per place. [2025-03-17 11:05:06,937 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 185 selfloop transitions, 58 changer transitions 0/723 dead transitions. [2025-03-17 11:05:06,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 723 transitions, 7327 flow [2025-03-17 11:05:06,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:05:06,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:05:06,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1459 transitions. [2025-03-17 11:05:06,939 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9107365792759051 [2025-03-17 11:05:06,939 INFO L175 Difference]: Start difference. First operand has 370 places, 639 transitions, 5911 flow. Second operand 9 states and 1459 transitions. [2025-03-17 11:05:06,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 723 transitions, 7327 flow [2025-03-17 11:05:07,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 723 transitions, 7229 flow, removed 49 selfloop flow, removed 0 redundant places. [2025-03-17 11:05:07,197 INFO L231 Difference]: Finished difference. Result has 385 places, 657 transitions, 6332 flow [2025-03-17 11:05:07,198 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=5813, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=639, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6332, PETRI_PLACES=385, PETRI_TRANSITIONS=657} [2025-03-17 11:05:07,198 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 207 predicate places. [2025-03-17 11:05:07,198 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 657 transitions, 6332 flow [2025-03-17 11:05:07,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:05:07,199 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:07,199 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] [2025-03-17 11:05:07,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-17 11:05:07,199 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)] === [2025-03-17 11:05:07,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:07,200 INFO L85 PathProgramCache]: Analyzing trace with hash 638958512, now seen corresponding path program 8 times [2025-03-17 11:05:07,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:07,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107732393] [2025-03-17 11:05:07,200 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:05:07,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:07,208 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-17 11:05:07,212 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-17 11:05:07,212 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:05:07,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:07,343 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:05:07,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:07,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107732393] [2025-03-17 11:05:07,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107732393] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:07,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:07,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:05:07,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504304124] [2025-03-17 11:05:07,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:07,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:05:07,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:07,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:05:07,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:05:08,031 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-17 11:05:08,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 657 transitions, 6332 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:05:08,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:08,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-17 11:05:08,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:11,239 INFO L124 PetriNetUnfolderBase]: 4825/17113 cut-off events. [2025-03-17 11:05:11,239 INFO L125 PetriNetUnfolderBase]: For 77364/78684 co-relation queries the response was YES. [2025-03-17 11:05:11,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63465 conditions, 17113 events. 4825/17113 cut-off events. For 77364/78684 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 181014 event pairs, 411 based on Foata normal form. 291/17177 useless extension candidates. Maximal degree in co-relation 63125. Up to 2765 conditions per place. [2025-03-17 11:05:11,421 INFO L140 encePairwiseOnDemand]: 162/178 looper letters, 195 selfloop transitions, 75 changer transitions 0/750 dead transitions. [2025-03-17 11:05:11,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 750 transitions, 7746 flow [2025-03-17 11:05:11,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:05:11,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:05:11,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1450 transitions. [2025-03-17 11:05:11,423 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9051186017478152 [2025-03-17 11:05:11,423 INFO L175 Difference]: Start difference. First operand has 385 places, 657 transitions, 6332 flow. Second operand 9 states and 1450 transitions. [2025-03-17 11:05:11,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 750 transitions, 7746 flow [2025-03-17 11:05:11,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 750 transitions, 7656 flow, removed 45 selfloop flow, removed 0 redundant places. [2025-03-17 11:05:11,733 INFO L231 Difference]: Finished difference. Result has 397 places, 669 transitions, 6604 flow [2025-03-17 11:05:11,734 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=6244, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=657, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6604, PETRI_PLACES=397, PETRI_TRANSITIONS=669} [2025-03-17 11:05:11,734 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 219 predicate places. [2025-03-17 11:05:11,734 INFO L471 AbstractCegarLoop]: Abstraction has has 397 places, 669 transitions, 6604 flow [2025-03-17 11:05:11,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:05:11,734 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:11,734 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] [2025-03-17 11:05:11,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-17 11:05:11,735 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)] === [2025-03-17 11:05:11,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:11,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1441762884, now seen corresponding path program 9 times [2025-03-17 11:05:11,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:11,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925731733] [2025-03-17 11:05:11,736 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 11:05:11,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:11,746 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-17 11:05:11,751 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-17 11:05:11,751 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 11:05:11,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:11,948 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:05:11,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:11,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925731733] [2025-03-17 11:05:11,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925731733] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:11,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:11,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:05:11,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373083659] [2025-03-17 11:05:11,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:11,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:05:11,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:11,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:05:11,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:05:12,984 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-17 11:05:12,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 669 transitions, 6604 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:05:12,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:12,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-17 11:05:12,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:15,805 INFO L124 PetriNetUnfolderBase]: 4538/16297 cut-off events. [2025-03-17 11:05:15,805 INFO L125 PetriNetUnfolderBase]: For 78608/79799 co-relation queries the response was YES. [2025-03-17 11:05:15,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61257 conditions, 16297 events. 4538/16297 cut-off events. For 78608/79799 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 170797 event pairs, 391 based on Foata normal form. 252/16341 useless extension candidates. Maximal degree in co-relation 60912. Up to 2597 conditions per place. [2025-03-17 11:05:15,925 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 196 selfloop transitions, 71 changer transitions 0/747 dead transitions. [2025-03-17 11:05:15,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 747 transitions, 7904 flow [2025-03-17 11:05:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:05:15,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:05:15,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1448 transitions. [2025-03-17 11:05:15,926 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9038701622971286 [2025-03-17 11:05:15,926 INFO L175 Difference]: Start difference. First operand has 397 places, 669 transitions, 6604 flow. Second operand 9 states and 1448 transitions. [2025-03-17 11:05:15,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 747 transitions, 7904 flow [2025-03-17 11:05:16,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 747 transitions, 7688 flow, removed 52 selfloop flow, removed 4 redundant places. [2025-03-17 11:05:16,221 INFO L231 Difference]: Finished difference. Result has 404 places, 672 transitions, 6636 flow [2025-03-17 11:05:16,222 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=6400, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=667, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=598, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6636, PETRI_PLACES=404, PETRI_TRANSITIONS=672} [2025-03-17 11:05:16,222 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 226 predicate places. [2025-03-17 11:05:16,222 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 672 transitions, 6636 flow [2025-03-17 11:05:16,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:05:16,223 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:16,223 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] [2025-03-17 11:05:16,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-17 11:05:16,223 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)] === [2025-03-17 11:05:16,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:16,224 INFO L85 PathProgramCache]: Analyzing trace with hash 875837620, now seen corresponding path program 10 times [2025-03-17 11:05:16,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:16,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009903337] [2025-03-17 11:05:16,225 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 11:05:16,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:16,243 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-17 11:05:16,253 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:05:16,253 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 11:05:16,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:16,662 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:05:16,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:16,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009903337] [2025-03-17 11:05:16,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009903337] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:16,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:16,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 11:05:16,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551719513] [2025-03-17 11:05:16,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:16,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:05:16,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:16,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:05:16,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-03-17 11:05:17,431 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-17 11:05:17,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 672 transitions, 6636 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:05:17,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:17,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-17 11:05:17,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:20,627 INFO L124 PetriNetUnfolderBase]: 4539/16366 cut-off events. [2025-03-17 11:05:20,627 INFO L125 PetriNetUnfolderBase]: For 76411/77615 co-relation queries the response was YES. [2025-03-17 11:05:20,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61252 conditions, 16366 events. 4539/16366 cut-off events. For 76411/77615 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 171712 event pairs, 411 based on Foata normal form. 228/16370 useless extension candidates. Maximal degree in co-relation 60904. Up to 2620 conditions per place. [2025-03-17 11:05:20,801 INFO L140 encePairwiseOnDemand]: 162/178 looper letters, 188 selfloop transitions, 78 changer transitions 0/746 dead transitions. [2025-03-17 11:05:20,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 746 transitions, 7888 flow [2025-03-17 11:05:20,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:05:20,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 11:05:20,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1602 transitions. [2025-03-17 11:05:20,803 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9 [2025-03-17 11:05:20,804 INFO L175 Difference]: Start difference. First operand has 404 places, 672 transitions, 6636 flow. Second operand 10 states and 1602 transitions. [2025-03-17 11:05:20,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 746 transitions, 7888 flow [2025-03-17 11:05:21,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 746 transitions, 7738 flow, removed 5 selfloop flow, removed 5 redundant places. [2025-03-17 11:05:21,133 INFO L231 Difference]: Finished difference. Result has 413 places, 683 transitions, 6900 flow [2025-03-17 11:05:21,133 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=6504, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=598, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6900, PETRI_PLACES=413, PETRI_TRANSITIONS=683} [2025-03-17 11:05:21,133 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 235 predicate places. [2025-03-17 11:05:21,133 INFO L471 AbstractCegarLoop]: Abstraction has has 413 places, 683 transitions, 6900 flow [2025-03-17 11:05:21,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:05:21,134 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:21,134 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] [2025-03-17 11:05:21,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-17 11:05:21,134 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)] === [2025-03-17 11:05:21,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:21,135 INFO L85 PathProgramCache]: Analyzing trace with hash -367393420, now seen corresponding path program 11 times [2025-03-17 11:05:21,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:21,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645558508] [2025-03-17 11:05:21,135 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 11:05:21,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:21,146 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-17 11:05:21,154 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:05:21,154 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-17 11:05:21,154 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:21,598 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-03-17 11:05:21,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:21,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645558508] [2025-03-17 11:05:21,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645558508] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 11:05:21,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942888000] [2025-03-17 11:05:21,598 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 11:05:21,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:05:21,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:05:21,600 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) [2025-03-17 11:05:21,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 11:05:21,676 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-17 11:05:21,735 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:05:21,735 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-17 11:05:21,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:21,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-03-17 11:05:21,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:05:21,931 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 [2025-03-17 11:05:21,963 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:05:21,963 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:05:21,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942888000] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:21,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 11:05:21,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-03-17 11:05:21,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076276592] [2025-03-17 11:05:21,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:21,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:05:21,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:21,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:05:21,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2025-03-17 11:05:22,839 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-17 11:05:22,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 683 transitions, 6900 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:05:22,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:22,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-17 11:05:22,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:26,035 INFO L124 PetriNetUnfolderBase]: 4835/17394 cut-off events. [2025-03-17 11:05:26,035 INFO L125 PetriNetUnfolderBase]: For 84957/86233 co-relation queries the response was YES. [2025-03-17 11:05:26,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65628 conditions, 17394 events. 4835/17394 cut-off events. For 84957/86233 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 185250 event pairs, 412 based on Foata normal form. 222/17385 useless extension candidates. Maximal degree in co-relation 65274. Up to 2799 conditions per place. [2025-03-17 11:05:26,190 INFO L140 encePairwiseOnDemand]: 162/178 looper letters, 212 selfloop transitions, 67 changer transitions 0/759 dead transitions. [2025-03-17 11:05:26,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 759 transitions, 8338 flow [2025-03-17 11:05:26,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:05:26,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 11:05:26,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1610 transitions. [2025-03-17 11:05:26,192 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9044943820224719 [2025-03-17 11:05:26,192 INFO L175 Difference]: Start difference. First operand has 413 places, 683 transitions, 6900 flow. Second operand 10 states and 1610 transitions. [2025-03-17 11:05:26,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 759 transitions, 8338 flow [2025-03-17 11:05:26,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 759 transitions, 8108 flow, removed 69 selfloop flow, removed 4 redundant places. [2025-03-17 11:05:26,516 INFO L231 Difference]: Finished difference. Result has 422 places, 694 transitions, 7118 flow [2025-03-17 11:05:26,516 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=6764, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=683, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7118, PETRI_PLACES=422, PETRI_TRANSITIONS=694} [2025-03-17 11:05:26,517 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 244 predicate places. [2025-03-17 11:05:26,517 INFO L471 AbstractCegarLoop]: Abstraction has has 422 places, 694 transitions, 7118 flow [2025-03-17 11:05:26,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:05:26,517 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:26,517 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] [2025-03-17 11:05:26,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 11:05:26,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:05:26,718 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)] === [2025-03-17 11:05:26,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:26,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1374114112, now seen corresponding path program 12 times [2025-03-17 11:05:26,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:26,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518679386] [2025-03-17 11:05:26,719 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 11:05:26,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:26,727 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-03-17 11:05:26,731 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-17 11:05:26,732 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-17 11:05:26,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:26,861 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:05:26,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:26,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518679386] [2025-03-17 11:05:26,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518679386] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:26,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:26,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:05:26,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330198952] [2025-03-17 11:05:26,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:26,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:05:26,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:26,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:05:26,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:05:27,435 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-17 11:05:27,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 694 transitions, 7118 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:05:27,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:27,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-17 11:05:27,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:30,731 INFO L124 PetriNetUnfolderBase]: 4841/17464 cut-off events. [2025-03-17 11:05:30,731 INFO L125 PetriNetUnfolderBase]: For 84589/85878 co-relation queries the response was YES. [2025-03-17 11:05:30,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65856 conditions, 17464 events. 4841/17464 cut-off events. For 84589/85878 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 186216 event pairs, 418 based on Foata normal form. 242/17476 useless extension candidates. Maximal degree in co-relation 65498. Up to 2810 conditions per place. [2025-03-17 11:05:30,892 INFO L140 encePairwiseOnDemand]: 162/178 looper letters, 203 selfloop transitions, 82 changer transitions 0/765 dead transitions. [2025-03-17 11:05:30,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 765 transitions, 8419 flow [2025-03-17 11:05:30,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:05:30,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:05:30,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1453 transitions. [2025-03-17 11:05:30,894 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9069912609238452 [2025-03-17 11:05:30,894 INFO L175 Difference]: Start difference. First operand has 422 places, 694 transitions, 7118 flow. Second operand 9 states and 1453 transitions. [2025-03-17 11:05:30,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 765 transitions, 8419 flow [2025-03-17 11:05:31,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 765 transitions, 8288 flow, removed 9 selfloop flow, removed 5 redundant places. [2025-03-17 11:05:31,265 INFO L231 Difference]: Finished difference. Result has 428 places, 703 transitions, 7352 flow [2025-03-17 11:05:31,266 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=6996, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=615, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7352, PETRI_PLACES=428, PETRI_TRANSITIONS=703} [2025-03-17 11:05:31,266 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 250 predicate places. [2025-03-17 11:05:31,266 INFO L471 AbstractCegarLoop]: Abstraction has has 428 places, 703 transitions, 7352 flow [2025-03-17 11:05:31,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:05:31,267 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:31,267 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] [2025-03-17 11:05:31,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-17 11:05:31,267 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)] === [2025-03-17 11:05:31,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:31,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1001938214, now seen corresponding path program 13 times [2025-03-17 11:05:31,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:31,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708251777] [2025-03-17 11:05:31,269 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 11:05:31,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:31,281 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-17 11:05:31,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:05:31,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:05:31,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:31,610 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:05:31,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:31,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708251777] [2025-03-17 11:05:31,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708251777] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:31,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:31,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:05:31,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131374004] [2025-03-17 11:05:31,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:31,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:05:31,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:31,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:05:31,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:05:32,196 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-03-17 11:05:32,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 703 transitions, 7352 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:05:32,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:32,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-03-17 11:05:32,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand