./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d853145e48ada6aa212af657ef21b1dd6bc82cb156511f71c23f87b45f2510e --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:45:25,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:45:25,336 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:45:25,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:45:25,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:45:25,361 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:45:25,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:45:25,362 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:45:25,362 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:45:25,362 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:45:25,363 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:45:25,363 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:45:25,363 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:45:25,363 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:45:25,363 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:45:25,363 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:45:25,363 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:45:25,363 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:45:25,363 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:45:25,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:45:25,363 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:45:25,364 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:45:25,364 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:45:25,364 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:45:25,364 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:45:25,364 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:45:25,364 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:45:25,364 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:45:25,364 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:45:25,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:45:25,364 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:45:25,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:45:25,364 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:45:25,364 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:45:25,364 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:45:25,365 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:45:25,365 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:45:25,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:45:25,365 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:45:25,365 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:45:25,365 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:45:25,365 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:45:25,365 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d853145e48ada6aa212af657ef21b1dd6bc82cb156511f71c23f87b45f2510e [2025-03-04 06:45:25,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:45:25,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:45:25,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:45:25,621 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:45:25,621 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:45:25,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i [2025-03-04 06:45:26,782 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0ddfe85a/6e3b7b96a5034f68a74b92cf308acb33/FLAGe54ab4cb1 [2025-03-04 06:45:27,053 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:45:27,053 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i [2025-03-04 06:45:27,062 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0ddfe85a/6e3b7b96a5034f68a74b92cf308acb33/FLAGe54ab4cb1 [2025-03-04 06:45:27,350 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0ddfe85a/6e3b7b96a5034f68a74b92cf308acb33 [2025-03-04 06:45:27,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:45:27,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:45:27,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:45:27,354 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:45:27,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:45:27,357 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:45:27" (1/1) ... [2025-03-04 06:45:27,358 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4868a213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:27, skipping insertion in model container [2025-03-04 06:45:27,358 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:45:27" (1/1) ... [2025-03-04 06:45:27,388 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:45:27,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:45:27,677 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:45:27,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:45:27,760 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:45:27,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:27 WrapperNode [2025-03-04 06:45:27,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:45:27,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:45:27,761 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:45:27,761 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:45:27,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:27" (1/1) ... [2025-03-04 06:45:27,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:27" (1/1) ... [2025-03-04 06:45:27,803 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 170 [2025-03-04 06:45:27,803 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:45:27,804 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:45:27,804 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:45:27,804 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:45:27,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:27" (1/1) ... [2025-03-04 06:45:27,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:27" (1/1) ... [2025-03-04 06:45:27,820 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:27" (1/1) ... [2025-03-04 06:45:27,821 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:27" (1/1) ... [2025-03-04 06:45:27,834 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:27" (1/1) ... [2025-03-04 06:45:27,840 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:27" (1/1) ... [2025-03-04 06:45:27,841 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:27" (1/1) ... [2025-03-04 06:45:27,842 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:27" (1/1) ... [2025-03-04 06:45:27,843 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:45:27,844 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:45:27,844 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:45:27,844 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:45:27,850 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:27" (1/1) ... [2025-03-04 06:45:27,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:45:27,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:45:27,879 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) [2025-03-04 06:45:27,882 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 [2025-03-04 06:45:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 06:45:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-04 06:45:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 06:45:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 06:45:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:45:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-04 06:45:27,898 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-04 06:45:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:45:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:45:27,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:45:27,899 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 06:45:27,997 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:45:27,999 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:45:28,315 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:45:28,316 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:45:28,333 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:45:28,334 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:45:28,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:45:28 BoogieIcfgContainer [2025-03-04 06:45:28,334 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:45:28,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:45:28,336 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:45:28,339 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:45:28,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:45:27" (1/3) ... [2025-03-04 06:45:28,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20104331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:45:28, skipping insertion in model container [2025-03-04 06:45:28,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:27" (2/3) ... [2025-03-04 06:45:28,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20104331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:45:28, skipping insertion in model container [2025-03-04 06:45:28,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:45:28" (3/3) ... [2025-03-04 06:45:28,341 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_04-funloop_hard1.i [2025-03-04 06:45:28,351 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:45:28,352 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_04-funloop_hard1.i that has 2 procedures, 180 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2025-03-04 06:45:28,352 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:45:28,409 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 06:45:28,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 182 transitions, 368 flow [2025-03-04 06:45:28,506 INFO L124 PetriNetUnfolderBase]: 3/181 cut-off events. [2025-03-04 06:45:28,508 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:45:28,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 181 events. 3/181 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 232 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2025-03-04 06:45:28,513 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 182 transitions, 368 flow [2025-03-04 06:45:28,516 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 181 transitions, 365 flow [2025-03-04 06:45:28,521 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:45:28,529 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;@55f2e06c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:45:28,529 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-04 06:45:28,554 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:45:28,554 INFO L124 PetriNetUnfolderBase]: 1/115 cut-off events. [2025-03-04 06:45:28,554 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:45:28,554 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:28,555 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:28,555 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)] === [2025-03-04 06:45:28,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:28,559 INFO L85 PathProgramCache]: Analyzing trace with hash 398662977, now seen corresponding path program 1 times [2025-03-04 06:45:28,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:28,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647461187] [2025-03-04 06:45:28,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:28,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:28,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 06:45:28,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 06:45:28,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:28,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:28,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:28,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:28,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647461187] [2025-03-04 06:45:28,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647461187] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:28,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:28,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 06:45:28,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302941655] [2025-03-04 06:45:28,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:28,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:45:28,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:28,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:45:28,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:45:28,947 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 182 [2025-03-04 06:45:28,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 181 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:28,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:28,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 182 [2025-03-04 06:45:28,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:29,052 INFO L124 PetriNetUnfolderBase]: 15/321 cut-off events. [2025-03-04 06:45:29,053 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:45:29,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 321 events. 15/321 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 914 event pairs, 10 based on Foata normal form. 1/301 useless extension candidates. Maximal degree in co-relation 266. Up to 36 conditions per place. [2025-03-04 06:45:29,058 INFO L140 encePairwiseOnDemand]: 179/182 looper letters, 12 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2025-03-04 06:45:29,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 182 transitions, 395 flow [2025-03-04 06:45:29,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:45:29,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:45:29,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions. [2025-03-04 06:45:29,073 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9560439560439561 [2025-03-04 06:45:29,075 INFO L175 Difference]: Start difference. First operand has 182 places, 181 transitions, 365 flow. Second operand 3 states and 522 transitions. [2025-03-04 06:45:29,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 182 transitions, 395 flow [2025-03-04 06:45:29,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 182 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:45:29,084 INFO L231 Difference]: Finished difference. Result has 184 places, 182 transitions, 376 flow [2025-03-04 06:45:29,086 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=184, PETRI_TRANSITIONS=182} [2025-03-04 06:45:29,088 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 2 predicate places. [2025-03-04 06:45:29,090 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 182 transitions, 376 flow [2025-03-04 06:45:29,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:29,091 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:29,091 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:45:29,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:45:29,092 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)] === [2025-03-04 06:45:29,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:29,094 INFO L85 PathProgramCache]: Analyzing trace with hash 273525691, now seen corresponding path program 1 times [2025-03-04 06:45:29,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:29,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481616191] [2025-03-04 06:45:29,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:29,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:29,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-04 06:45:29,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-04 06:45:29,138 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:29,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:29,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:29,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:29,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481616191] [2025-03-04 06:45:29,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481616191] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:45:29,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116793576] [2025-03-04 06:45:29,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:29,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:45:29,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:45:29,287 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) [2025-03-04 06:45:29,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 06:45:29,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-04 06:45:29,378 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-04 06:45:29,378 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:29,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:29,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 06:45:29,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:45:29,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 06:45:29,401 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 06:45:29,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116793576] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:29,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 06:45:29,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-04 06:45:29,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993630413] [2025-03-04 06:45:29,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:29,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:45:29,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:29,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:45:29,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:45:29,414 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 182 [2025-03-04 06:45:29,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 182 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:29,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:29,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 182 [2025-03-04 06:45:29,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:29,491 INFO L124 PetriNetUnfolderBase]: 35/481 cut-off events. [2025-03-04 06:45:29,491 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:45:29,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 481 events. 35/481 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1726 event pairs, 10 based on Foata normal form. 3/450 useless extension candidates. Maximal degree in co-relation 481. Up to 51 conditions per place. [2025-03-04 06:45:29,494 INFO L140 encePairwiseOnDemand]: 179/182 looper letters, 16 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2025-03-04 06:45:29,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 187 transitions, 422 flow [2025-03-04 06:45:29,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:45:29,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:45:29,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2025-03-04 06:45:29,496 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9633699633699634 [2025-03-04 06:45:29,496 INFO L175 Difference]: Start difference. First operand has 184 places, 182 transitions, 376 flow. Second operand 3 states and 526 transitions. [2025-03-04 06:45:29,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 187 transitions, 422 flow [2025-03-04 06:45:29,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 187 transitions, 420 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:45:29,499 INFO L231 Difference]: Finished difference. Result has 186 places, 183 transitions, 386 flow [2025-03-04 06:45:29,499 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=186, PETRI_TRANSITIONS=183} [2025-03-04 06:45:29,499 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 4 predicate places. [2025-03-04 06:45:29,499 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 183 transitions, 386 flow [2025-03-04 06:45:29,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:29,500 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:29,500 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] [2025-03-04 06:45:29,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 06:45:29,700 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 [2025-03-04 06:45:29,701 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)] === [2025-03-04 06:45:29,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:29,701 INFO L85 PathProgramCache]: Analyzing trace with hash -2132139115, now seen corresponding path program 1 times [2025-03-04 06:45:29,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:29,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595833153] [2025-03-04 06:45:29,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:29,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:29,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-04 06:45:29,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-04 06:45:29,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:29,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:29,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:29,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:29,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595833153] [2025-03-04 06:45:29,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595833153] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:45:29,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814161833] [2025-03-04 06:45:29,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:29,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:45:29,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:45:29,816 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) [2025-03-04 06:45:29,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 06:45:29,869 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-04 06:45:29,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-04 06:45:29,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:29,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:29,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 06:45:29,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:45:29,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:29,957 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 06:45:29,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:30,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814161833] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 06:45:30,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 06:45:30,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-04 06:45:30,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770054980] [2025-03-04 06:45:30,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 06:45:30,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 06:45:30,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:30,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 06:45:30,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-04 06:45:30,035 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 182 [2025-03-04 06:45:30,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 183 transitions, 386 flow. Second operand has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:30,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:30,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 182 [2025-03-04 06:45:30,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:30,211 INFO L124 PetriNetUnfolderBase]: 24/489 cut-off events. [2025-03-04 06:45:30,211 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:45:30,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 489 events. 24/489 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1569 event pairs, 14 based on Foata normal form. 2/457 useless extension candidates. Maximal degree in co-relation 458. Up to 51 conditions per place. [2025-03-04 06:45:30,216 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 16 selfloop transitions, 9 changer transitions 0/191 dead transitions. [2025-03-04 06:45:30,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 191 transitions, 454 flow [2025-03-04 06:45:30,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:45:30,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:45:30,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1521 transitions. [2025-03-04 06:45:30,221 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9285714285714286 [2025-03-04 06:45:30,221 INFO L175 Difference]: Start difference. First operand has 186 places, 183 transitions, 386 flow. Second operand 9 states and 1521 transitions. [2025-03-04 06:45:30,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 191 transitions, 454 flow [2025-03-04 06:45:30,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 191 transitions, 452 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:45:30,227 INFO L231 Difference]: Finished difference. Result has 196 places, 189 transitions, 434 flow [2025-03-04 06:45:30,228 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=434, PETRI_PLACES=196, PETRI_TRANSITIONS=189} [2025-03-04 06:45:30,228 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 14 predicate places. [2025-03-04 06:45:30,228 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 189 transitions, 434 flow [2025-03-04 06:45:30,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:30,229 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:30,229 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] [2025-03-04 06:45:30,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 06:45:30,429 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 [2025-03-04 06:45:30,430 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)] === [2025-03-04 06:45:30,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:30,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1323425749, now seen corresponding path program 2 times [2025-03-04 06:45:30,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:30,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582923386] [2025-03-04 06:45:30,431 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:45:30,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:30,448 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 105 statements into 2 equivalence classes. [2025-03-04 06:45:30,457 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 105 statements. [2025-03-04 06:45:30,457 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:45:30,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:30,820 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 06:45:30,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:30,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582923386] [2025-03-04 06:45:30,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582923386] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:30,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:30,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:45:30,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669464785] [2025-03-04 06:45:30,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:30,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:45:30,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:30,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:45:30,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:45:31,026 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:45:31,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 189 transitions, 434 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:31,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:31,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:45:31,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:31,261 INFO L124 PetriNetUnfolderBase]: 333/1545 cut-off events. [2025-03-04 06:45:31,261 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-04 06:45:31,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2256 conditions, 1545 events. 333/1545 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 10115 event pairs, 160 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 2144. Up to 544 conditions per place. [2025-03-04 06:45:31,269 INFO L140 encePairwiseOnDemand]: 171/182 looper letters, 36 selfloop transitions, 22 changer transitions 0/218 dead transitions. [2025-03-04 06:45:31,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 218 transitions, 608 flow [2025-03-04 06:45:31,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:45:31,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:45:31,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 977 transitions. [2025-03-04 06:45:31,271 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8946886446886447 [2025-03-04 06:45:31,271 INFO L175 Difference]: Start difference. First operand has 196 places, 189 transitions, 434 flow. Second operand 6 states and 977 transitions. [2025-03-04 06:45:31,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 218 transitions, 608 flow [2025-03-04 06:45:31,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 218 transitions, 602 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-03-04 06:45:31,275 INFO L231 Difference]: Finished difference. Result has 205 places, 210 transitions, 578 flow [2025-03-04 06:45:31,276 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=578, PETRI_PLACES=205, PETRI_TRANSITIONS=210} [2025-03-04 06:45:31,276 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 23 predicate places. [2025-03-04 06:45:31,276 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 210 transitions, 578 flow [2025-03-04 06:45:31,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:31,277 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:31,277 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] [2025-03-04 06:45:31,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 06:45:31,277 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)] === [2025-03-04 06:45:31,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:31,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1407213627, now seen corresponding path program 1 times [2025-03-04 06:45:31,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:31,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022644756] [2025-03-04 06:45:31,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:31,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:31,287 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-04 06:45:31,296 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-04 06:45:31,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:31,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:31,417 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:31,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:31,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022644756] [2025-03-04 06:45:31,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022644756] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:45:31,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149567561] [2025-03-04 06:45:31,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:31,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:45:31,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:45:31,420 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) [2025-03-04 06:45:31,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 06:45:31,467 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-04 06:45:31,492 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-04 06:45:31,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:31,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:31,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 06:45:31,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:45:31,546 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:31,546 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 06:45:31,630 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:31,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149567561] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 06:45:31,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 06:45:31,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-03-04 06:45:31,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341565955] [2025-03-04 06:45:31,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 06:45:31,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-04 06:45:31,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:31,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-04 06:45:31,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-04 06:45:31,665 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 182 [2025-03-04 06:45:31,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 210 transitions, 578 flow. Second operand has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:31,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:31,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 182 [2025-03-04 06:45:31,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:31,968 INFO L124 PetriNetUnfolderBase]: 118/1109 cut-off events. [2025-03-04 06:45:31,968 INFO L125 PetriNetUnfolderBase]: For 77/83 co-relation queries the response was YES. [2025-03-04 06:45:31,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1607 conditions, 1109 events. 118/1109 cut-off events. For 77/83 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5898 event pairs, 24 based on Foata normal form. 4/1039 useless extension candidates. Maximal degree in co-relation 1418. Up to 133 conditions per place. [2025-03-04 06:45:31,972 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 20 selfloop transitions, 21 changer transitions 0/228 dead transitions. [2025-03-04 06:45:31,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 228 transitions, 748 flow [2025-03-04 06:45:31,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-04 06:45:31,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-04 06:45:31,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3531 transitions. [2025-03-04 06:45:31,978 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.923861852433281 [2025-03-04 06:45:31,978 INFO L175 Difference]: Start difference. First operand has 205 places, 210 transitions, 578 flow. Second operand 21 states and 3531 transitions. [2025-03-04 06:45:31,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 228 transitions, 748 flow [2025-03-04 06:45:31,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 228 transitions, 748 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:45:31,983 INFO L231 Difference]: Finished difference. Result has 230 places, 223 transitions, 708 flow [2025-03-04 06:45:31,983 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=708, PETRI_PLACES=230, PETRI_TRANSITIONS=223} [2025-03-04 06:45:31,984 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 48 predicate places. [2025-03-04 06:45:31,984 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 223 transitions, 708 flow [2025-03-04 06:45:31,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 168.0) internal successors, (3024), 18 states have internal predecessors, (3024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:31,985 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:31,985 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] [2025-03-04 06:45:31,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-04 06:45:32,190 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 [2025-03-04 06:45:32,191 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)] === [2025-03-04 06:45:32,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:32,192 INFO L85 PathProgramCache]: Analyzing trace with hash -2067257275, now seen corresponding path program 2 times [2025-03-04 06:45:32,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:32,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496051125] [2025-03-04 06:45:32,192 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:45:32,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:32,203 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 125 statements into 2 equivalence classes. [2025-03-04 06:45:32,211 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 125 statements. [2025-03-04 06:45:32,211 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:45:32,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:32,442 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-04 06:45:32,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:32,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496051125] [2025-03-04 06:45:32,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496051125] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:32,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:32,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:45:32,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120471825] [2025-03-04 06:45:32,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:32,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:45:32,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:32,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:45:32,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:45:32,606 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:45:32,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 223 transitions, 708 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:32,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:32,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:45:32,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:32,959 INFO L124 PetriNetUnfolderBase]: 505/2412 cut-off events. [2025-03-04 06:45:32,959 INFO L125 PetriNetUnfolderBase]: For 415/445 co-relation queries the response was YES. [2025-03-04 06:45:32,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4105 conditions, 2412 events. 505/2412 cut-off events. For 415/445 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 17728 event pairs, 194 based on Foata normal form. 5/2276 useless extension candidates. Maximal degree in co-relation 3909. Up to 824 conditions per place. [2025-03-04 06:45:32,971 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 61 selfloop transitions, 46 changer transitions 0/284 dead transitions. [2025-03-04 06:45:32,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 284 transitions, 1086 flow [2025-03-04 06:45:32,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:45:32,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:45:32,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1001 transitions. [2025-03-04 06:45:32,973 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2025-03-04 06:45:32,974 INFO L175 Difference]: Start difference. First operand has 230 places, 223 transitions, 708 flow. Second operand 6 states and 1001 transitions. [2025-03-04 06:45:32,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 284 transitions, 1086 flow [2025-03-04 06:45:32,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 284 transitions, 1062 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-03-04 06:45:32,982 INFO L231 Difference]: Finished difference. Result has 234 places, 268 transitions, 1038 flow [2025-03-04 06:45:32,983 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1038, PETRI_PLACES=234, PETRI_TRANSITIONS=268} [2025-03-04 06:45:32,983 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 52 predicate places. [2025-03-04 06:45:32,984 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 268 transitions, 1038 flow [2025-03-04 06:45:32,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:32,985 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:32,985 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] [2025-03-04 06:45:32,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 06:45:32,985 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)] === [2025-03-04 06:45:32,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:32,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1078927013, now seen corresponding path program 1 times [2025-03-04 06:45:32,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:32,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500345118] [2025-03-04 06:45:32,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:32,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:32,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-04 06:45:33,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-04 06:45:33,009 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:33,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:33,278 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:33,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:33,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500345118] [2025-03-04 06:45:33,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500345118] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:45:33,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541131254] [2025-03-04 06:45:33,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:33,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:45:33,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:45:33,281 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) [2025-03-04 06:45:33,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 06:45:33,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-04 06:45:33,359 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-04 06:45:33,359 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:33,359 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:33,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 06:45:33,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:45:33,434 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:33,434 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 06:45:33,607 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:45:33,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541131254] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 06:45:33,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 06:45:33,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-03-04 06:45:33,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657294251] [2025-03-04 06:45:33,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 06:45:33,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-04 06:45:33,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:33,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-04 06:45:33,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-03-04 06:45:33,639 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 182 [2025-03-04 06:45:33,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 268 transitions, 1038 flow. Second operand has 23 states, 23 states have (on average 168.08695652173913) internal successors, (3866), 23 states have internal predecessors, (3866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:33,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:33,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 182 [2025-03-04 06:45:33,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:34,049 INFO L124 PetriNetUnfolderBase]: 264/1738 cut-off events. [2025-03-04 06:45:34,049 INFO L125 PetriNetUnfolderBase]: For 589/618 co-relation queries the response was YES. [2025-03-04 06:45:34,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3163 conditions, 1738 events. 264/1738 cut-off events. For 589/618 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 11608 event pairs, 40 based on Foata normal form. 13/1667 useless extension candidates. Maximal degree in co-relation 2886. Up to 204 conditions per place. [2025-03-04 06:45:34,058 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 23 selfloop transitions, 30 changer transitions 0/285 dead transitions. [2025-03-04 06:45:34,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 285 transitions, 1266 flow [2025-03-04 06:45:34,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-04 06:45:34,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-04 06:45:34,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5036 transitions. [2025-03-04 06:45:34,066 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9223443223443224 [2025-03-04 06:45:34,066 INFO L175 Difference]: Start difference. First operand has 234 places, 268 transitions, 1038 flow. Second operand 30 states and 5036 transitions. [2025-03-04 06:45:34,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 285 transitions, 1266 flow [2025-03-04 06:45:34,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 285 transitions, 1266 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:45:34,073 INFO L231 Difference]: Finished difference. Result has 267 places, 278 transitions, 1190 flow [2025-03-04 06:45:34,073 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1190, PETRI_PLACES=267, PETRI_TRANSITIONS=278} [2025-03-04 06:45:34,074 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 85 predicate places. [2025-03-04 06:45:34,074 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 278 transitions, 1190 flow [2025-03-04 06:45:34,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 168.08695652173913) internal successors, (3866), 23 states have internal predecessors, (3866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:34,075 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:34,075 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] [2025-03-04 06:45:34,083 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 06:45:34,280 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 [2025-03-04 06:45:34,280 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)] === [2025-03-04 06:45:34,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:34,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1427340449, now seen corresponding path program 2 times [2025-03-04 06:45:34,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:34,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343833482] [2025-03-04 06:45:34,281 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:45:34,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:34,293 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 148 statements into 2 equivalence classes. [2025-03-04 06:45:34,298 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 98 of 148 statements. [2025-03-04 06:45:34,298 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:45:34,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:34,531 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:45:34,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:34,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343833482] [2025-03-04 06:45:34,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343833482] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:34,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:34,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:45:34,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151221147] [2025-03-04 06:45:34,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:34,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:45:34,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:34,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:45:34,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:45:34,626 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 182 [2025-03-04 06:45:34,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 278 transitions, 1190 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:34,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:34,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 182 [2025-03-04 06:45:34,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:35,148 INFO L124 PetriNetUnfolderBase]: 949/3309 cut-off events. [2025-03-04 06:45:35,148 INFO L125 PetriNetUnfolderBase]: For 2058/2153 co-relation queries the response was YES. [2025-03-04 06:45:35,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7539 conditions, 3309 events. 949/3309 cut-off events. For 2058/2153 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 23816 event pairs, 303 based on Foata normal form. 20/3172 useless extension candidates. Maximal degree in co-relation 7261. Up to 1634 conditions per place. [2025-03-04 06:45:35,168 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 102 selfloop transitions, 57 changer transitions 0/333 dead transitions. [2025-03-04 06:45:35,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 333 transitions, 1752 flow [2025-03-04 06:45:35,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:45:35,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:45:35,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 943 transitions. [2025-03-04 06:45:35,171 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8635531135531136 [2025-03-04 06:45:35,171 INFO L175 Difference]: Start difference. First operand has 267 places, 278 transitions, 1190 flow. Second operand 6 states and 943 transitions. [2025-03-04 06:45:35,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 333 transitions, 1752 flow [2025-03-04 06:45:35,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 333 transitions, 1706 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-03-04 06:45:35,184 INFO L231 Difference]: Finished difference. Result has 259 places, 325 transitions, 1642 flow [2025-03-04 06:45:35,185 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1642, PETRI_PLACES=259, PETRI_TRANSITIONS=325} [2025-03-04 06:45:35,185 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 77 predicate places. [2025-03-04 06:45:35,185 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 325 transitions, 1642 flow [2025-03-04 06:45:35,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:35,185 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:35,186 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] [2025-03-04 06:45:35,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 06:45:35,186 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)] === [2025-03-04 06:45:35,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:35,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1670237187, now seen corresponding path program 1 times [2025-03-04 06:45:35,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:35,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666371208] [2025-03-04 06:45:35,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:35,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:35,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-03-04 06:45:35,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-03-04 06:45:35,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:35,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:35,546 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:45:35,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:35,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666371208] [2025-03-04 06:45:35,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666371208] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:35,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:35,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:45:35,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600424096] [2025-03-04 06:45:35,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:35,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:45:35,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:35,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:45:35,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:45:35,630 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 182 [2025-03-04 06:45:35,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 325 transitions, 1642 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:35,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:35,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 182 [2025-03-04 06:45:35,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:36,301 INFO L124 PetriNetUnfolderBase]: 1319/4555 cut-off events. [2025-03-04 06:45:36,301 INFO L125 PetriNetUnfolderBase]: For 4859/4990 co-relation queries the response was YES. [2025-03-04 06:45:36,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11634 conditions, 4555 events. 1319/4555 cut-off events. For 4859/4990 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 35660 event pairs, 341 based on Foata normal form. 40/4406 useless extension candidates. Maximal degree in co-relation 11373. Up to 2190 conditions per place. [2025-03-04 06:45:36,328 INFO L140 encePairwiseOnDemand]: 159/182 looper letters, 143 selfloop transitions, 103 changer transitions 4/426 dead transitions. [2025-03-04 06:45:36,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 426 transitions, 2608 flow [2025-03-04 06:45:36,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:45:36,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:45:36,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 983 transitions. [2025-03-04 06:45:36,330 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9001831501831502 [2025-03-04 06:45:36,330 INFO L175 Difference]: Start difference. First operand has 259 places, 325 transitions, 1642 flow. Second operand 6 states and 983 transitions. [2025-03-04 06:45:36,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 426 transitions, 2608 flow [2025-03-04 06:45:36,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 426 transitions, 2544 flow, removed 32 selfloop flow, removed 0 redundant places. [2025-03-04 06:45:36,350 INFO L231 Difference]: Finished difference. Result has 269 places, 410 transitions, 2494 flow [2025-03-04 06:45:36,350 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=1584, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2494, PETRI_PLACES=269, PETRI_TRANSITIONS=410} [2025-03-04 06:45:36,351 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 87 predicate places. [2025-03-04 06:45:36,351 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 410 transitions, 2494 flow [2025-03-04 06:45:36,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:36,351 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:36,351 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] [2025-03-04 06:45:36,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 06:45:36,352 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)] === [2025-03-04 06:45:36,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:36,353 INFO L85 PathProgramCache]: Analyzing trace with hash 496308676, now seen corresponding path program 1 times [2025-03-04 06:45:36,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:36,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258219738] [2025-03-04 06:45:36,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:36,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:36,366 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-04 06:45:36,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:45:36,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:36,386 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:36,863 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:45:36,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:36,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258219738] [2025-03-04 06:45:36,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258219738] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:36,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:36,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:45:36,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095979436] [2025-03-04 06:45:36,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:36,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:45:36,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:36,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:45:36,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:45:38,023 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:45:38,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 410 transitions, 2494 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:38,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:38,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:45:38,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:38,745 INFO L124 PetriNetUnfolderBase]: 1231/4917 cut-off events. [2025-03-04 06:45:38,745 INFO L125 PetriNetUnfolderBase]: For 6125/6264 co-relation queries the response was YES. [2025-03-04 06:45:38,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13121 conditions, 4917 events. 1231/4917 cut-off events. For 6125/6264 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 41564 event pairs, 180 based on Foata normal form. 37/4877 useless extension candidates. Maximal degree in co-relation 12843. Up to 712 conditions per place. [2025-03-04 06:45:38,771 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 73 selfloop transitions, 15 changer transitions 0/468 dead transitions. [2025-03-04 06:45:38,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 468 transitions, 2786 flow [2025-03-04 06:45:38,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:45:38,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:45:38,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1467 transitions. [2025-03-04 06:45:38,774 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8956043956043956 [2025-03-04 06:45:38,774 INFO L175 Difference]: Start difference. First operand has 269 places, 410 transitions, 2494 flow. Second operand 9 states and 1467 transitions. [2025-03-04 06:45:38,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 468 transitions, 2786 flow [2025-03-04 06:45:38,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 468 transitions, 2672 flow, removed 57 selfloop flow, removed 0 redundant places. [2025-03-04 06:45:38,805 INFO L231 Difference]: Finished difference. Result has 284 places, 424 transitions, 2492 flow [2025-03-04 06:45:38,805 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2380, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2492, PETRI_PLACES=284, PETRI_TRANSITIONS=424} [2025-03-04 06:45:38,806 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 102 predicate places. [2025-03-04 06:45:38,806 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 424 transitions, 2492 flow [2025-03-04 06:45:38,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:38,806 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:38,806 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] [2025-03-04 06:45:38,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 06:45:38,806 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)] === [2025-03-04 06:45:38,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:38,807 INFO L85 PathProgramCache]: Analyzing trace with hash 510152904, now seen corresponding path program 2 times [2025-03-04 06:45:38,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:38,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969394915] [2025-03-04 06:45:38,807 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:45:38,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:38,823 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-04 06:45:38,833 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-04 06:45:38,833 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:45:38,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:39,084 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:45:39,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:39,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969394915] [2025-03-04 06:45:39,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969394915] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:39,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:39,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:45:39,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517236996] [2025-03-04 06:45:39,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:39,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:45:39,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:39,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:45:39,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:45:40,111 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:45:40,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 424 transitions, 2492 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:40,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:40,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:45:40,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:41,513 INFO L124 PetriNetUnfolderBase]: 2479/9316 cut-off events. [2025-03-04 06:45:41,513 INFO L125 PetriNetUnfolderBase]: For 12598/12898 co-relation queries the response was YES. [2025-03-04 06:45:41,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26480 conditions, 9316 events. 2479/9316 cut-off events. For 12598/12898 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 88651 event pairs, 325 based on Foata normal form. 99/9273 useless extension candidates. Maximal degree in co-relation 26194. Up to 1468 conditions per place. [2025-03-04 06:45:41,578 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 119 selfloop transitions, 20 changer transitions 4/523 dead transitions. [2025-03-04 06:45:41,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 523 transitions, 3210 flow [2025-03-04 06:45:41,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:45:41,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:45:41,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1475 transitions. [2025-03-04 06:45:41,582 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9004884004884005 [2025-03-04 06:45:41,582 INFO L175 Difference]: Start difference. First operand has 284 places, 424 transitions, 2492 flow. Second operand 9 states and 1475 transitions. [2025-03-04 06:45:41,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 523 transitions, 3210 flow [2025-03-04 06:45:41,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 523 transitions, 3200 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:45:41,645 INFO L231 Difference]: Finished difference. Result has 298 places, 441 transitions, 2671 flow [2025-03-04 06:45:41,645 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2490, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2671, PETRI_PLACES=298, PETRI_TRANSITIONS=441} [2025-03-04 06:45:41,647 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 116 predicate places. [2025-03-04 06:45:41,647 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 441 transitions, 2671 flow [2025-03-04 06:45:41,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:41,648 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:41,648 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] [2025-03-04 06:45:41,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 06:45:41,648 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)] === [2025-03-04 06:45:41,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:41,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1645867836, now seen corresponding path program 3 times [2025-03-04 06:45:41,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:41,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997474559] [2025-03-04 06:45:41,649 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 06:45:41,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:41,663 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:45:41,674 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-04 06:45:41,674 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 06:45:41,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:42,000 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:45:42,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:42,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997474559] [2025-03-04 06:45:42,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997474559] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:42,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:42,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:45:42,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077460640] [2025-03-04 06:45:42,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:42,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:45:42,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:42,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:45:42,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:45:43,261 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:45:43,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 441 transitions, 2671 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:43,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:43,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:45:43,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:44,806 INFO L124 PetriNetUnfolderBase]: 2778/10527 cut-off events. [2025-03-04 06:45:44,807 INFO L125 PetriNetUnfolderBase]: For 16366/16818 co-relation queries the response was YES. [2025-03-04 06:45:44,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31099 conditions, 10527 events. 2778/10527 cut-off events. For 16366/16818 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 101812 event pairs, 352 based on Foata normal form. 106/10467 useless extension candidates. Maximal degree in co-relation 30805. Up to 1567 conditions per place. [2025-03-04 06:45:44,865 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 123 selfloop transitions, 22 changer transitions 0/525 dead transitions. [2025-03-04 06:45:44,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 525 transitions, 3459 flow [2025-03-04 06:45:44,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:45:44,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:45:44,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1472 transitions. [2025-03-04 06:45:44,867 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8986568986568987 [2025-03-04 06:45:44,867 INFO L175 Difference]: Start difference. First operand has 298 places, 441 transitions, 2671 flow. Second operand 9 states and 1472 transitions. [2025-03-04 06:45:44,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 525 transitions, 3459 flow [2025-03-04 06:45:44,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 525 transitions, 3421 flow, removed 19 selfloop flow, removed 0 redundant places. [2025-03-04 06:45:44,932 INFO L231 Difference]: Finished difference. Result has 311 places, 453 transitions, 2840 flow [2025-03-04 06:45:44,933 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2657, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2840, PETRI_PLACES=311, PETRI_TRANSITIONS=453} [2025-03-04 06:45:44,935 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 129 predicate places. [2025-03-04 06:45:44,935 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 453 transitions, 2840 flow [2025-03-04 06:45:44,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:44,936 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:44,936 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] [2025-03-04 06:45:44,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-04 06:45:44,937 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)] === [2025-03-04 06:45:44,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:44,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1851917024, now seen corresponding path program 4 times [2025-03-04 06:45:44,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:44,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656680443] [2025-03-04 06:45:44,938 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 06:45:44,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:44,954 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-04 06:45:44,986 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:45:44,986 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 06:45:44,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:45,521 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:45:45,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:45,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656680443] [2025-03-04 06:45:45,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656680443] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:45,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:45,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-04 06:45:45,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165593976] [2025-03-04 06:45:45,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:45,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 06:45:45,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:45,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 06:45:45,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-03-04 06:45:46,567 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:45:46,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 453 transitions, 2840 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:46,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:46,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:45:46,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:48,511 INFO L124 PetriNetUnfolderBase]: 3073/11395 cut-off events. [2025-03-04 06:45:48,511 INFO L125 PetriNetUnfolderBase]: For 20248/20704 co-relation queries the response was YES. [2025-03-04 06:45:48,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34824 conditions, 11395 events. 3073/11395 cut-off events. For 20248/20704 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 111221 event pairs, 346 based on Foata normal form. 119/11359 useless extension candidates. Maximal degree in co-relation 34524. Up to 1851 conditions per place. [2025-03-04 06:45:48,615 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 137 selfloop transitions, 28 changer transitions 4/549 dead transitions. [2025-03-04 06:45:48,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 549 transitions, 3825 flow [2025-03-04 06:45:48,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 06:45:48,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 06:45:48,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1631 transitions. [2025-03-04 06:45:48,617 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8961538461538462 [2025-03-04 06:45:48,617 INFO L175 Difference]: Start difference. First operand has 311 places, 453 transitions, 2840 flow. Second operand 10 states and 1631 transitions. [2025-03-04 06:45:48,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 549 transitions, 3825 flow [2025-03-04 06:45:48,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 549 transitions, 3746 flow, removed 7 selfloop flow, removed 3 redundant places. [2025-03-04 06:45:48,725 INFO L231 Difference]: Finished difference. Result has 322 places, 465 transitions, 3021 flow [2025-03-04 06:45:48,726 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2814, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3021, PETRI_PLACES=322, PETRI_TRANSITIONS=465} [2025-03-04 06:45:48,727 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 140 predicate places. [2025-03-04 06:45:48,727 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 465 transitions, 3021 flow [2025-03-04 06:45:48,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:48,728 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:48,728 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] [2025-03-04 06:45:48,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-04 06:45:48,728 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 06:45:48,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:48,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1516329702, now seen corresponding path program 5 times [2025-03-04 06:45:48,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:48,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170868506] [2025-03-04 06:45:48,730 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 06:45:48,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:48,749 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:45:48,766 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:45:48,766 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-04 06:45:48,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:49,355 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-03-04 06:45:49,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:49,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170868506] [2025-03-04 06:45:49,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170868506] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:45:49,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331052338] [2025-03-04 06:45:49,355 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 06:45:49,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:45:49,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:45:49,357 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) [2025-03-04 06:45:49,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 06:45:49,420 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:45:49,476 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:45:49,476 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-04 06:45:49,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:49,478 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-04 06:45:49,482 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:45:49,686 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 [2025-03-04 06:45:49,734 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:45:49,735 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 06:45:49,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331052338] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:49,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 06:45:49,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-03-04 06:45:49,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369233932] [2025-03-04 06:45:49,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:49,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 06:45:49,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:49,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 06:45:49,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2025-03-04 06:45:50,668 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:45:50,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 465 transitions, 3021 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:50,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:50,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:45:50,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:52,361 INFO L124 PetriNetUnfolderBase]: 3406/12720 cut-off events. [2025-03-04 06:45:52,361 INFO L125 PetriNetUnfolderBase]: For 25302/25896 co-relation queries the response was YES. [2025-03-04 06:45:52,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39483 conditions, 12720 events. 3406/12720 cut-off events. For 25302/25896 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 126906 event pairs, 382 based on Foata normal form. 112/12645 useless extension candidates. Maximal degree in co-relation 39177. Up to 1959 conditions per place. [2025-03-04 06:45:52,486 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 136 selfloop transitions, 30 changer transitions 0/546 dead transitions. [2025-03-04 06:45:52,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 546 transitions, 4004 flow [2025-03-04 06:45:52,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 06:45:52,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 06:45:52,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1628 transitions. [2025-03-04 06:45:52,488 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8945054945054945 [2025-03-04 06:45:52,488 INFO L175 Difference]: Start difference. First operand has 322 places, 465 transitions, 3021 flow. Second operand 10 states and 1628 transitions. [2025-03-04 06:45:52,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 546 transitions, 4004 flow [2025-03-04 06:45:52,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 546 transitions, 3911 flow, removed 10 selfloop flow, removed 4 redundant places. [2025-03-04 06:45:52,595 INFO L231 Difference]: Finished difference. Result has 333 places, 480 transitions, 3259 flow [2025-03-04 06:45:52,595 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2978, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3259, PETRI_PLACES=333, PETRI_TRANSITIONS=480} [2025-03-04 06:45:52,595 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 151 predicate places. [2025-03-04 06:45:52,595 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 480 transitions, 3259 flow [2025-03-04 06:45:52,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:52,596 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:52,596 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] [2025-03-04 06:45:52,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-04 06:45:52,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-04 06:45:52,797 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)] === [2025-03-04 06:45:52,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:52,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1220419554, now seen corresponding path program 6 times [2025-03-04 06:45:52,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:52,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660832592] [2025-03-04 06:45:52,798 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 06:45:52,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:52,808 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:45:52,815 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-04 06:45:52,817 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-04 06:45:52,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:52,977 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:45:52,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:52,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660832592] [2025-03-04 06:45:52,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660832592] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:52,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:52,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:45:52,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171304580] [2025-03-04 06:45:52,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:52,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:45:52,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:52,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:45:52,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:45:53,914 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:45:53,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 480 transitions, 3259 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:53,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:53,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:45:53,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:55,971 INFO L124 PetriNetUnfolderBase]: 3725/13728 cut-off events. [2025-03-04 06:45:55,972 INFO L125 PetriNetUnfolderBase]: For 31550/32164 co-relation queries the response was YES. [2025-03-04 06:45:56,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43944 conditions, 13728 events. 3725/13728 cut-off events. For 31550/32164 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 138859 event pairs, 386 based on Foata normal form. 120/13668 useless extension candidates. Maximal degree in co-relation 43632. Up to 2232 conditions per place. [2025-03-04 06:45:56,046 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 154 selfloop transitions, 34 changer transitions 2/570 dead transitions. [2025-03-04 06:45:56,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 570 transitions, 4410 flow [2025-03-04 06:45:56,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:45:56,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:45:56,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1479 transitions. [2025-03-04 06:45:56,048 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9029304029304029 [2025-03-04 06:45:56,048 INFO L175 Difference]: Start difference. First operand has 333 places, 480 transitions, 3259 flow. Second operand 9 states and 1479 transitions. [2025-03-04 06:45:56,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 570 transitions, 4410 flow [2025-03-04 06:45:56,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 570 transitions, 4312 flow, removed 27 selfloop flow, removed 3 redundant places. [2025-03-04 06:45:56,167 INFO L231 Difference]: Finished difference. Result has 344 places, 495 transitions, 3504 flow [2025-03-04 06:45:56,168 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=3198, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3504, PETRI_PLACES=344, PETRI_TRANSITIONS=495} [2025-03-04 06:45:56,168 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 162 predicate places. [2025-03-04 06:45:56,168 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 495 transitions, 3504 flow [2025-03-04 06:45:56,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:56,169 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:56,169 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] [2025-03-04 06:45:56,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-04 06:45:56,169 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)] === [2025-03-04 06:45:56,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:56,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1576277874, now seen corresponding path program 7 times [2025-03-04 06:45:56,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:56,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632064198] [2025-03-04 06:45:56,170 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 06:45:56,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:56,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-04 06:45:56,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:45:56,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:56,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:56,390 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:45:56,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:56,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632064198] [2025-03-04 06:45:56,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632064198] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:56,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:56,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:45:56,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856407100] [2025-03-04 06:45:56,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:56,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:45:56,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:56,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:45:56,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:45:57,161 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:45:57,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 495 transitions, 3504 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:57,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:57,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:45:57,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:59,330 INFO L124 PetriNetUnfolderBase]: 4068/15087 cut-off events. [2025-03-04 06:45:59,330 INFO L125 PetriNetUnfolderBase]: For 39976/40637 co-relation queries the response was YES. [2025-03-04 06:45:59,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49325 conditions, 15087 events. 4068/15087 cut-off events. For 39976/40637 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 155897 event pairs, 478 based on Foata normal form. 107/14981 useless extension candidates. Maximal degree in co-relation 49008. Up to 2363 conditions per place. [2025-03-04 06:45:59,458 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 150 selfloop transitions, 36 changer transitions 0/566 dead transitions. [2025-03-04 06:45:59,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 566 transitions, 4606 flow [2025-03-04 06:45:59,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:45:59,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:45:59,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1477 transitions. [2025-03-04 06:45:59,459 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9017094017094017 [2025-03-04 06:45:59,459 INFO L175 Difference]: Start difference. First operand has 344 places, 495 transitions, 3504 flow. Second operand 9 states and 1477 transitions. [2025-03-04 06:45:59,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 566 transitions, 4606 flow [2025-03-04 06:45:59,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 566 transitions, 4506 flow, removed 26 selfloop flow, removed 2 redundant places. [2025-03-04 06:45:59,614 INFO L231 Difference]: Finished difference. Result has 357 places, 514 transitions, 3855 flow [2025-03-04 06:45:59,614 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=3426, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3855, PETRI_PLACES=357, PETRI_TRANSITIONS=514} [2025-03-04 06:45:59,615 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 175 predicate places. [2025-03-04 06:45:59,615 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 514 transitions, 3855 flow [2025-03-04 06:45:59,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:45:59,615 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:59,615 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] [2025-03-04 06:45:59,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-04 06:45:59,616 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)] === [2025-03-04 06:45:59,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:59,616 INFO L85 PathProgramCache]: Analyzing trace with hash 2116917232, now seen corresponding path program 8 times [2025-03-04 06:45:59,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:59,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658277556] [2025-03-04 06:45:59,617 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:45:59,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:59,625 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-04 06:45:59,630 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-04 06:45:59,630 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:45:59,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:59,764 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:45:59,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:59,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658277556] [2025-03-04 06:45:59,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658277556] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:59,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:59,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:45:59,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494791798] [2025-03-04 06:45:59,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:59,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:45:59,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:59,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:45:59,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:46:00,332 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:00,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 514 transitions, 3855 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:46:00,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:00,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:00,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:02,855 INFO L124 PetriNetUnfolderBase]: 4671/16951 cut-off events. [2025-03-04 06:46:02,855 INFO L125 PetriNetUnfolderBase]: For 51043/51927 co-relation queries the response was YES. [2025-03-04 06:46:02,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57058 conditions, 16951 events. 4671/16951 cut-off events. For 51043/51927 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 179812 event pairs, 469 based on Foata normal form. 137/16875 useless extension candidates. Maximal degree in co-relation 56734. Up to 2778 conditions per place. [2025-03-04 06:46:02,974 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 173 selfloop transitions, 45 changer transitions 0/598 dead transitions. [2025-03-04 06:46:02,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 598 transitions, 5172 flow [2025-03-04 06:46:02,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:46:02,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:46:02,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1481 transitions. [2025-03-04 06:46:02,975 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9041514041514042 [2025-03-04 06:46:02,975 INFO L175 Difference]: Start difference. First operand has 357 places, 514 transitions, 3855 flow. Second operand 9 states and 1481 transitions. [2025-03-04 06:46:02,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 598 transitions, 5172 flow [2025-03-04 06:46:03,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 598 transitions, 5068 flow, removed 52 selfloop flow, removed 0 redundant places. [2025-03-04 06:46:03,169 INFO L231 Difference]: Finished difference. Result has 372 places, 532 transitions, 4209 flow [2025-03-04 06:46:03,169 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=3751, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4209, PETRI_PLACES=372, PETRI_TRANSITIONS=532} [2025-03-04 06:46:03,169 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 190 predicate places. [2025-03-04 06:46:03,170 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 532 transitions, 4209 flow [2025-03-04 06:46:03,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:46:03,170 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:03,170 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] [2025-03-04 06:46:03,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-04 06:46:03,170 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)] === [2025-03-04 06:46:03,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:03,171 INFO L85 PathProgramCache]: Analyzing trace with hash 487230494, now seen corresponding path program 9 times [2025-03-04 06:46:03,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:03,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979957631] [2025-03-04 06:46:03,171 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 06:46:03,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:03,179 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:46:03,182 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-04 06:46:03,183 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 06:46:03,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:03,311 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:46:03,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:03,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979957631] [2025-03-04 06:46:03,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979957631] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:03,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:46:03,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:46:03,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352173165] [2025-03-04 06:46:03,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:03,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:46:03,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:03,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:46:03,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:46:04,170 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:04,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 532 transitions, 4209 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:46:04,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:04,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:04,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:07,412 INFO L124 PetriNetUnfolderBase]: 4663/17065 cut-off events. [2025-03-04 06:46:07,412 INFO L125 PetriNetUnfolderBase]: For 56745/57647 co-relation queries the response was YES. [2025-03-04 06:46:07,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58128 conditions, 17065 events. 4663/17065 cut-off events. For 56745/57647 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 181799 event pairs, 445 based on Foata normal form. 223/17085 useless extension candidates. Maximal degree in co-relation 57796. Up to 2699 conditions per place. [2025-03-04 06:46:07,535 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 185 selfloop transitions, 58 changer transitions 0/623 dead transitions. [2025-03-04 06:46:07,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 623 transitions, 5535 flow [2025-03-04 06:46:07,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:46:07,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:46:07,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1470 transitions. [2025-03-04 06:46:07,536 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8974358974358975 [2025-03-04 06:46:07,536 INFO L175 Difference]: Start difference. First operand has 372 places, 532 transitions, 4209 flow. Second operand 9 states and 1470 transitions. [2025-03-04 06:46:07,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 623 transitions, 5535 flow [2025-03-04 06:46:07,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 623 transitions, 5447 flow, removed 44 selfloop flow, removed 0 redundant places. [2025-03-04 06:46:07,745 INFO L231 Difference]: Finished difference. Result has 384 places, 544 transitions, 4449 flow [2025-03-04 06:46:07,745 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=4123, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=478, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4449, PETRI_PLACES=384, PETRI_TRANSITIONS=544} [2025-03-04 06:46:07,745 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 202 predicate places. [2025-03-04 06:46:07,745 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 544 transitions, 4449 flow [2025-03-04 06:46:07,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:46:07,746 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:07,746 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:46:07,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-04 06:46:07,746 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)] === [2025-03-04 06:46:07,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:07,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1094714860, now seen corresponding path program 10 times [2025-03-04 06:46:07,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:07,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906829146] [2025-03-04 06:46:07,747 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 06:46:07,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:07,756 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-04 06:46:07,764 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:46:07,764 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 06:46:07,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:08,257 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:46:08,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:08,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906829146] [2025-03-04 06:46:08,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906829146] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:08,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:46:08,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-04 06:46:08,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757202962] [2025-03-04 06:46:08,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:08,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 06:46:08,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:08,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 06:46:08,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-04 06:46:09,021 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:09,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 544 transitions, 4449 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:46:09,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:09,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:09,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:11,776 INFO L124 PetriNetUnfolderBase]: 4388/16276 cut-off events. [2025-03-04 06:46:11,776 INFO L125 PetriNetUnfolderBase]: For 58688/59591 co-relation queries the response was YES. [2025-03-04 06:46:11,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56085 conditions, 16276 events. 4388/16276 cut-off events. For 58688/59591 co-relation queries the response was YES. Maximal size of possible extension queue 479. Compared 171668 event pairs, 426 based on Foata normal form. 205/16278 useless extension candidates. Maximal degree in co-relation 55748. Up to 2535 conditions per place. [2025-03-04 06:46:11,923 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 185 selfloop transitions, 55 changer transitions 0/620 dead transitions. [2025-03-04 06:46:11,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 620 transitions, 5663 flow [2025-03-04 06:46:11,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 06:46:11,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 06:46:11,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1621 transitions. [2025-03-04 06:46:11,928 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8906593406593407 [2025-03-04 06:46:11,928 INFO L175 Difference]: Start difference. First operand has 384 places, 544 transitions, 4449 flow. Second operand 10 states and 1621 transitions. [2025-03-04 06:46:11,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 620 transitions, 5663 flow [2025-03-04 06:46:12,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 620 transitions, 5481 flow, removed 52 selfloop flow, removed 4 redundant places. [2025-03-04 06:46:12,167 INFO L231 Difference]: Finished difference. Result has 392 places, 547 transitions, 4483 flow [2025-03-04 06:46:12,167 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=4279, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4483, PETRI_PLACES=392, PETRI_TRANSITIONS=547} [2025-03-04 06:46:12,167 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 210 predicate places. [2025-03-04 06:46:12,167 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 547 transitions, 4483 flow [2025-03-04 06:46:12,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:46:12,168 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:12,168 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] [2025-03-04 06:46:12,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-04 06:46:12,168 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)] === [2025-03-04 06:46:12,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:12,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1274962040, now seen corresponding path program 11 times [2025-03-04 06:46:12,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:12,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54500211] [2025-03-04 06:46:12,169 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 06:46:12,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:12,179 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:46:12,187 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:46:12,187 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-04 06:46:12,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:12,622 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-03-04 06:46:12,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:12,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54500211] [2025-03-04 06:46:12,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54500211] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:46:12,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559746399] [2025-03-04 06:46:12,623 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 06:46:12,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:46:12,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:46:12,625 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) [2025-03-04 06:46:12,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 06:46:12,701 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:46:12,750 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:46:12,751 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-04 06:46:12,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:12,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-03-04 06:46:12,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:46:12,986 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 [2025-03-04 06:46:13,025 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:46:13,025 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 06:46:13,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559746399] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:13,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 06:46:13,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-03-04 06:46:13,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586268958] [2025-03-04 06:46:13,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:13,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 06:46:13,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:13,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 06:46:13,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2025-03-04 06:46:13,825 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:13,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 547 transitions, 4483 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:46:13,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:13,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:13,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:16,714 INFO L124 PetriNetUnfolderBase]: 4390/16303 cut-off events. [2025-03-04 06:46:16,714 INFO L125 PetriNetUnfolderBase]: For 56430/57210 co-relation queries the response was YES. [2025-03-04 06:46:16,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56006 conditions, 16303 events. 4390/16303 cut-off events. For 56430/57210 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 171969 event pairs, 450 based on Foata normal form. 175/16273 useless extension candidates. Maximal degree in co-relation 55665. Up to 2566 conditions per place. [2025-03-04 06:46:16,837 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 179 selfloop transitions, 61 changer transitions 0/620 dead transitions. [2025-03-04 06:46:16,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 620 transitions, 5647 flow [2025-03-04 06:46:16,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 06:46:16,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 06:46:16,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1624 transitions. [2025-03-04 06:46:16,838 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8923076923076924 [2025-03-04 06:46:16,838 INFO L175 Difference]: Start difference. First operand has 392 places, 547 transitions, 4483 flow. Second operand 10 states and 1624 transitions. [2025-03-04 06:46:16,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 620 transitions, 5647 flow [2025-03-04 06:46:17,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 620 transitions, 5529 flow, removed 5 selfloop flow, removed 6 redundant places. [2025-03-04 06:46:17,042 INFO L231 Difference]: Finished difference. Result has 400 places, 558 transitions, 4735 flow [2025-03-04 06:46:17,043 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=4383, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=547, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4735, PETRI_PLACES=400, PETRI_TRANSITIONS=558} [2025-03-04 06:46:17,043 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 218 predicate places. [2025-03-04 06:46:17,043 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 558 transitions, 4735 flow [2025-03-04 06:46:17,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:46:17,044 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:17,044 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] [2025-03-04 06:46:17,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-04 06:46:17,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:46:17,244 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)] === [2025-03-04 06:46:17,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:17,245 INFO L85 PathProgramCache]: Analyzing trace with hash 2102762288, now seen corresponding path program 12 times [2025-03-04 06:46:17,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:17,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082174009] [2025-03-04 06:46:17,245 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 06:46:17,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:17,253 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:46:17,256 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-04 06:46:17,257 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-04 06:46:17,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:46:17,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:17,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082174009] [2025-03-04 06:46:17,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082174009] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:17,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:46:17,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:46:17,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660040811] [2025-03-04 06:46:17,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:17,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:46:17,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:17,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:46:17,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:46:18,330 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:18,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 558 transitions, 4735 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:46:18,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:18,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:18,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:21,449 INFO L124 PetriNetUnfolderBase]: 4679/17288 cut-off events. [2025-03-04 06:46:21,449 INFO L125 PetriNetUnfolderBase]: For 63711/64533 co-relation queries the response was YES. [2025-03-04 06:46:21,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59966 conditions, 17288 events. 4679/17288 cut-off events. For 63711/64533 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 184587 event pairs, 475 based on Foata normal form. 163/17232 useless extension candidates. Maximal degree in co-relation 59620. Up to 2741 conditions per place. [2025-03-04 06:46:21,608 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 203 selfloop transitions, 49 changer transitions 0/632 dead transitions. [2025-03-04 06:46:21,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 632 transitions, 6071 flow [2025-03-04 06:46:21,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:46:21,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:46:21,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1479 transitions. [2025-03-04 06:46:21,610 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9029304029304029 [2025-03-04 06:46:21,610 INFO L175 Difference]: Start difference. First operand has 400 places, 558 transitions, 4735 flow. Second operand 9 states and 1479 transitions. [2025-03-04 06:46:21,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 632 transitions, 6071 flow [2025-03-04 06:46:21,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 632 transitions, 5865 flow, removed 73 selfloop flow, removed 4 redundant places. [2025-03-04 06:46:21,899 INFO L231 Difference]: Finished difference. Result has 408 places, 568 transitions, 4915 flow [2025-03-04 06:46:21,899 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=4627, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4915, PETRI_PLACES=408, PETRI_TRANSITIONS=568} [2025-03-04 06:46:21,900 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 226 predicate places. [2025-03-04 06:46:21,900 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 568 transitions, 4915 flow [2025-03-04 06:46:21,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:46:21,900 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:21,900 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] [2025-03-04 06:46:21,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-04 06:46:21,901 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)] === [2025-03-04 06:46:21,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:21,902 INFO L85 PathProgramCache]: Analyzing trace with hash -278668322, now seen corresponding path program 13 times [2025-03-04 06:46:21,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:21,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681338222] [2025-03-04 06:46:21,902 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 06:46:21,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:21,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-04 06:46:21,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:46:21,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:46:21,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:22,192 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:46:22,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:22,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681338222] [2025-03-04 06:46:22,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681338222] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:22,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:46:22,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:46:22,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307449568] [2025-03-04 06:46:22,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:22,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:46:22,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:22,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:46:22,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:46:22,866 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:22,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 568 transitions, 4915 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:46:22,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:22,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:22,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:25,908 INFO L124 PetriNetUnfolderBase]: 4685/17399 cut-off events. [2025-03-04 06:46:25,909 INFO L125 PetriNetUnfolderBase]: For 62894/63727 co-relation queries the response was YES. [2025-03-04 06:46:26,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60279 conditions, 17399 events. 4685/17399 cut-off events. For 62894/63727 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 186392 event pairs, 453 based on Foata normal form. 184/17371 useless extension candidates. Maximal degree in co-relation 59930. Up to 2755 conditions per place. [2025-03-04 06:46:26,071 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 192 selfloop transitions, 66 changer transitions 0/638 dead transitions. [2025-03-04 06:46:26,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 638 transitions, 6128 flow [2025-03-04 06:46:26,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:46:26,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:46:26,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1473 transitions. [2025-03-04 06:46:26,072 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8992673992673993 [2025-03-04 06:46:26,072 INFO L175 Difference]: Start difference. First operand has 408 places, 568 transitions, 4915 flow. Second operand 9 states and 1473 transitions. [2025-03-04 06:46:26,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 638 transitions, 6128 flow [2025-03-04 06:46:26,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 638 transitions, 6031 flow, removed 9 selfloop flow, removed 4 redundant places. [2025-03-04 06:46:26,491 INFO L231 Difference]: Finished difference. Result has 415 places, 577 transitions, 5143 flow [2025-03-04 06:46:26,491 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=4827, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=505, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5143, PETRI_PLACES=415, PETRI_TRANSITIONS=577} [2025-03-04 06:46:26,492 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 233 predicate places. [2025-03-04 06:46:26,492 INFO L471 AbstractCegarLoop]: Abstraction has has 415 places, 577 transitions, 5143 flow [2025-03-04 06:46:26,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:46:26,493 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:26,493 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] [2025-03-04 06:46:26,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-04 06:46:26,493 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)] === [2025-03-04 06:46:26,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:26,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1673346218, now seen corresponding path program 14 times [2025-03-04 06:46:26,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:26,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458849435] [2025-03-04 06:46:26,494 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:46:26,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:26,504 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-04 06:46:26,507 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-04 06:46:26,507 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:46:26,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:26,634 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:46:26,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:26,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458849435] [2025-03-04 06:46:26,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458849435] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:26,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:46:26,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:46:26,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173004608] [2025-03-04 06:46:26,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:26,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:46:26,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:26,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:46:26,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:46:27,224 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:27,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 577 transitions, 5143 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:46:27,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:27,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:27,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:30,446 INFO L124 PetriNetUnfolderBase]: 4684/17407 cut-off events. [2025-03-04 06:46:30,446 INFO L125 PetriNetUnfolderBase]: For 64298/65195 co-relation queries the response was YES. [2025-03-04 06:46:30,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60504 conditions, 17407 events. 4684/17407 cut-off events. For 64298/65195 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 186550 event pairs, 451 based on Foata normal form. 181/17374 useless extension candidates. Maximal degree in co-relation 60152. Up to 2755 conditions per place. [2025-03-04 06:46:30,593 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 202 selfloop transitions, 62 changer transitions 0/644 dead transitions. [2025-03-04 06:46:30,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 644 transitions, 6353 flow [2025-03-04 06:46:30,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:46:30,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:46:30,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1474 transitions. [2025-03-04 06:46:30,595 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8998778998778999 [2025-03-04 06:46:30,595 INFO L175 Difference]: Start difference. First operand has 415 places, 577 transitions, 5143 flow. Second operand 9 states and 1474 transitions. [2025-03-04 06:46:30,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 644 transitions, 6353 flow [2025-03-04 06:46:30,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 644 transitions, 6221 flow, removed 11 selfloop flow, removed 5 redundant places. [2025-03-04 06:46:30,878 INFO L231 Difference]: Finished difference. Result has 422 places, 585 transitions, 5341 flow [2025-03-04 06:46:30,878 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=5019, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=577, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5341, PETRI_PLACES=422, PETRI_TRANSITIONS=585} [2025-03-04 06:46:30,878 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 240 predicate places. [2025-03-04 06:46:30,878 INFO L471 AbstractCegarLoop]: Abstraction has has 422 places, 585 transitions, 5341 flow [2025-03-04 06:46:30,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:46:30,879 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:30,879 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] [2025-03-04 06:46:30,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-04 06:46:30,879 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 06:46:30,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:30,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1515371174, now seen corresponding path program 15 times [2025-03-04 06:46:30,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:30,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920787304] [2025-03-04 06:46:30,880 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 06:46:30,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:30,891 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:46:30,895 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-04 06:46:30,896 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 06:46:30,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:31,066 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:46:31,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:31,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920787304] [2025-03-04 06:46:31,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920787304] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:31,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:46:31,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:46:31,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655367748] [2025-03-04 06:46:31,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:31,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:46:31,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:31,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:46:31,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:46:31,766 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:31,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 585 transitions, 5341 flow. Second operand has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:46:31,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:31,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:31,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:35,093 INFO L124 PetriNetUnfolderBase]: 4411/16574 cut-off events. [2025-03-04 06:46:35,093 INFO L125 PetriNetUnfolderBase]: For 61535/62336 co-relation queries the response was YES. [2025-03-04 06:46:35,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57539 conditions, 16574 events. 4411/16574 cut-off events. For 61535/62336 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 175856 event pairs, 450 based on Foata normal form. 164/16532 useless extension candidates. Maximal degree in co-relation 57183. Up to 2594 conditions per place. [2025-03-04 06:46:35,247 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 198 selfloop transitions, 64 changer transitions 0/642 dead transitions. [2025-03-04 06:46:35,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 642 transitions, 6405 flow [2025-03-04 06:46:35,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:46:35,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:46:35,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1476 transitions. [2025-03-04 06:46:35,248 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9010989010989011 [2025-03-04 06:46:35,248 INFO L175 Difference]: Start difference. First operand has 422 places, 585 transitions, 5341 flow. Second operand 9 states and 1476 transitions. [2025-03-04 06:46:35,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 642 transitions, 6405 flow [2025-03-04 06:46:35,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 642 transitions, 6289 flow, removed 18 selfloop flow, removed 4 redundant places. [2025-03-04 06:46:35,521 INFO L231 Difference]: Finished difference. Result has 429 places, 592 transitions, 5531 flow [2025-03-04 06:46:35,521 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=5183, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=583, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=522, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5531, PETRI_PLACES=429, PETRI_TRANSITIONS=592} [2025-03-04 06:46:35,522 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 247 predicate places. [2025-03-04 06:46:35,522 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 592 transitions, 5531 flow [2025-03-04 06:46:35,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.77777777777777) internal successors, (1393), 9 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:46:35,522 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:35,522 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] [2025-03-04 06:46:35,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-04 06:46:35,523 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 06:46:35,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:35,524 INFO L85 PathProgramCache]: Analyzing trace with hash 321531544, now seen corresponding path program 16 times [2025-03-04 06:46:35,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:35,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537256159] [2025-03-04 06:46:35,524 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 06:46:35,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:35,534 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-04 06:46:35,541 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:46:35,541 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 06:46:35,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:35,870 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:46:35,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:35,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537256159] [2025-03-04 06:46:35,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537256159] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:35,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:46:35,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-04 06:46:35,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604732651] [2025-03-04 06:46:35,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:35,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 06:46:35,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:35,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 06:46:35,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-04 06:46:36,677 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:36,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 592 transitions, 5531 flow. Second operand has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:46:36,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:36,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:36,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:39,401 INFO L124 PetriNetUnfolderBase]: 4134/15707 cut-off events. [2025-03-04 06:46:39,401 INFO L125 PetriNetUnfolderBase]: For 58007/58797 co-relation queries the response was YES. [2025-03-04 06:46:39,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54239 conditions, 15707 events. 4134/15707 cut-off events. For 58007/58797 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 164596 event pairs, 455 based on Foata normal form. 155/15653 useless extension candidates. Maximal degree in co-relation 53880. Up to 2426 conditions per place. [2025-03-04 06:46:39,556 INFO L140 encePairwiseOnDemand]: 165/182 looper letters, 204 selfloop transitions, 62 changer transitions 0/646 dead transitions. [2025-03-04 06:46:39,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 646 transitions, 6577 flow [2025-03-04 06:46:39,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 06:46:39,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 06:46:39,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1631 transitions. [2025-03-04 06:46:39,560 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8961538461538462 [2025-03-04 06:46:39,560 INFO L175 Difference]: Start difference. First operand has 429 places, 592 transitions, 5531 flow. Second operand 10 states and 1631 transitions. [2025-03-04 06:46:39,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 646 transitions, 6577 flow [2025-03-04 06:46:40,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 646 transitions, 6403 flow, removed 36 selfloop flow, removed 5 redundant places. [2025-03-04 06:46:40,020 INFO L231 Difference]: Finished difference. Result has 436 places, 599 transitions, 5646 flow [2025-03-04 06:46:40,021 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=5319, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=590, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5646, PETRI_PLACES=436, PETRI_TRANSITIONS=599} [2025-03-04 06:46:40,021 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 254 predicate places. [2025-03-04 06:46:40,021 INFO L471 AbstractCegarLoop]: Abstraction has has 436 places, 599 transitions, 5646 flow [2025-03-04 06:46:40,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 154.6) internal successors, (1546), 10 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:46:40,022 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:40,022 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] [2025-03-04 06:46:40,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-04 06:46:40,022 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 06:46:40,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:40,023 INFO L85 PathProgramCache]: Analyzing trace with hash -652315696, now seen corresponding path program 17 times [2025-03-04 06:46:40,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:40,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985145697] [2025-03-04 06:46:40,023 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 06:46:40,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:40,034 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:46:40,042 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:46:40,042 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-04 06:46:40,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:40,443 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-03-04 06:46:40,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:40,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985145697] [2025-03-04 06:46:40,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985145697] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:46:40,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483075073] [2025-03-04 06:46:40,444 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 06:46:40,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:46:40,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:46:40,446 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 06:46:40,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 06:46:40,531 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:46:40,584 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:46:40,584 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-04 06:46:40,584 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:40,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-03-04 06:46:40,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:46:40,762 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 [2025-03-04 06:46:40,800 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:46:40,800 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 06:46:40,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483075073] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:40,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 06:46:40,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-03-04 06:46:40,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761175111] [2025-03-04 06:46:40,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:40,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 06:46:40,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:40,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 06:46:40,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306