./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.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_05-funloop_hard2.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 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:45:25,424 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:45:25,485 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:45:25,492 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:45:25,495 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:45:25,515 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:45:25,515 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:45:25,515 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:45:25,516 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:45:25,516 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:45:25,517 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:45:25,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:45:25,517 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:45:25,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:45:25,518 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:45:25,518 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:45:25,518 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:45:25,518 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:45:25,518 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:45:25,518 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:45:25,518 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:45:25,518 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:45:25,518 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:45:25,518 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:45:25,518 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:45:25,519 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:45:25,519 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:45:25,519 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:45:25,519 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:45:25,519 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:45:25,519 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:45:25,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:45:25,519 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:45:25,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:45:25,520 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:45:25,520 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:45:25,520 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:45:25,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:45:25,520 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:45:25,520 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:45:25,520 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:45:25,520 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:45:25,520 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 -> 9e83a031749850377e0f1ecd2c361048b8f87f697f146600048034d31c93bd9a [2025-03-04 06:45:25,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:45:25,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:45:25,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:45:25,741 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:45:25,741 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:45:25,743 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2025-03-04 06:45:26,854 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69eacf72e/a2d3d4c88fd149af949f475689b6cd17/FLAGf2cb30aea [2025-03-04 06:45:27,175 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:45:27,176 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2025-03-04 06:45:27,186 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69eacf72e/a2d3d4c88fd149af949f475689b6cd17/FLAGf2cb30aea [2025-03-04 06:45:27,421 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69eacf72e/a2d3d4c88fd149af949f475689b6cd17 [2025-03-04 06:45:27,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:45:27,424 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:45:27,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:45:27,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:45:27,428 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:45:27,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:45:27" (1/1) ... [2025-03-04 06:45:27,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4502300f 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 06:45:27,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:45:27" (1/1) ... [2025-03-04 06:45:27,451 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:45:27,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:45:27,811 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:45:27,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:45:27,907 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:45:27,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:45:27 WrapperNode [2025-03-04 06:45:27,908 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:45:27,909 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:45:27,909 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:45:27,910 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:45:27,915 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 06:45:27,929 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 06:45:27,958 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 170 [2025-03-04 06:45:27,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:45:27,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:45:27,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:45:27,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:45:27,965 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 06:45:27,967 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 06:45:27,973 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 06:45:27,976 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 06:45:27,989 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 06:45:27,995 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 06:45:27,996 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 06:45:27,997 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 06:45:27,999 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:45:28,001 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:45:28,001 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:45:28,001 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:45:28,002 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 06:45:28,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:45:28,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:45:28,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 06:45:28,028 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 06:45:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 06:45:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-04 06:45:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 06:45:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 06:45:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:45:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-04 06:45:28,044 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-04 06:45:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:45:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:45:28,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:45:28,045 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 06:45:28,143 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:45:28,145 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:45:28,407 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:45:28,407 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:45:28,433 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:45:28,433 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:45:28,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:45:28 BoogieIcfgContainer [2025-03-04 06:45:28,433 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:45:28,435 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:45:28,435 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:45:28,439 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:45:28,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:45:27" (1/3) ... [2025-03-04 06:45:28,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600d7afe 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 06:45:28,440 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 06:45:28,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600d7afe 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 06:45:28,441 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 06:45:28,442 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2025-03-04 06:45:28,453 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:45:28,454 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_05-funloop_hard2.i that has 2 procedures, 180 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2025-03-04 06:45:28,455 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:45:28,525 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 06:45:28,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 182 transitions, 368 flow [2025-03-04 06:45:28,655 INFO L124 PetriNetUnfolderBase]: 3/181 cut-off events. [2025-03-04 06:45:28,658 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:45:28,663 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 06:45:28,663 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 182 transitions, 368 flow [2025-03-04 06:45:28,668 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 181 transitions, 365 flow [2025-03-04 06:45:28,678 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:45:28,687 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;@f33f691, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:45:28,688 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-04 06:45:28,716 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:45:28,717 INFO L124 PetriNetUnfolderBase]: 1/115 cut-off events. [2025-03-04 06:45:28,717 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:45:28,717 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:28,718 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 06:45:28,718 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 06:45:28,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:28,723 INFO L85 PathProgramCache]: Analyzing trace with hash 398662977, now seen corresponding path program 1 times [2025-03-04 06:45:28,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:28,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401825838] [2025-03-04 06:45:28,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:28,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:28,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 06:45:28,843 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 06:45:28,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:28,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:29,044 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 06:45:29,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:29,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401825838] [2025-03-04 06:45:29,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401825838] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:29,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:29,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 06:45:29,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380344817] [2025-03-04 06:45:29,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:29,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:45:29,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:29,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:45:29,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:45:29,095 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 182 [2025-03-04 06:45:29,098 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 06:45:29,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:29,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 182 [2025-03-04 06:45:29,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:29,190 INFO L124 PetriNetUnfolderBase]: 15/321 cut-off events. [2025-03-04 06:45:29,191 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:45:29,192 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 06:45:29,195 INFO L140 encePairwiseOnDemand]: 179/182 looper letters, 12 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2025-03-04 06:45:29,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 182 transitions, 395 flow [2025-03-04 06:45:29,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:45:29,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:45:29,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions. [2025-03-04 06:45:29,209 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9560439560439561 [2025-03-04 06:45:29,210 INFO L175 Difference]: Start difference. First operand has 182 places, 181 transitions, 365 flow. Second operand 3 states and 522 transitions. [2025-03-04 06:45:29,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 182 transitions, 395 flow [2025-03-04 06:45:29,214 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 06:45:29,219 INFO L231 Difference]: Finished difference. Result has 184 places, 182 transitions, 376 flow [2025-03-04 06:45:29,221 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 06:45:29,224 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 2 predicate places. [2025-03-04 06:45:29,225 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 182 transitions, 376 flow [2025-03-04 06:45:29,225 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 06:45:29,225 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:29,226 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 06:45:29,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:45:29,227 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 06:45:29,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:29,228 INFO L85 PathProgramCache]: Analyzing trace with hash 273525691, now seen corresponding path program 1 times [2025-03-04 06:45:29,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:29,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252368892] [2025-03-04 06:45:29,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:29,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:29,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-04 06:45:29,258 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-04 06:45:29,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:29,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:29,382 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 06:45:29,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:29,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252368892] [2025-03-04 06:45:29,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252368892] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:45:29,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175465282] [2025-03-04 06:45:29,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:29,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:45:29,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:45:29,385 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 06:45:29,386 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 06:45:29,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-04 06:45:29,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-04 06:45:29,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:29,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:29,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 06:45:29,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:45:29,484 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 06:45:29,484 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 06:45:29,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175465282] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:29,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 06:45:29,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-04 06:45:29,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984292583] [2025-03-04 06:45:29,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:29,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:45:29,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:29,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:45:29,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:45:29,497 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 182 [2025-03-04 06:45:29,498 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 06:45:29,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:29,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 182 [2025-03-04 06:45:29,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:29,572 INFO L124 PetriNetUnfolderBase]: 35/481 cut-off events. [2025-03-04 06:45:29,573 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:45:29,574 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 06:45:29,575 INFO L140 encePairwiseOnDemand]: 179/182 looper letters, 16 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2025-03-04 06:45:29,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 187 transitions, 422 flow [2025-03-04 06:45:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:45:29,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:45:29,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2025-03-04 06:45:29,577 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9633699633699634 [2025-03-04 06:45:29,577 INFO L175 Difference]: Start difference. First operand has 184 places, 182 transitions, 376 flow. Second operand 3 states and 526 transitions. [2025-03-04 06:45:29,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 187 transitions, 422 flow [2025-03-04 06:45:29,578 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 06:45:29,579 INFO L231 Difference]: Finished difference. Result has 186 places, 183 transitions, 386 flow [2025-03-04 06:45:29,580 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 06:45:29,580 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 4 predicate places. [2025-03-04 06:45:29,580 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 183 transitions, 386 flow [2025-03-04 06:45:29,580 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 06:45:29,580 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:29,581 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 06:45:29,587 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 06:45:29,781 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 06:45:29,781 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 06:45:29,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:29,782 INFO L85 PathProgramCache]: Analyzing trace with hash -2132139115, now seen corresponding path program 1 times [2025-03-04 06:45:29,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:29,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123075982] [2025-03-04 06:45:29,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:29,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:29,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-04 06:45:29,818 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-04 06:45:29,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:29,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:29,958 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 06:45:29,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:29,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123075982] [2025-03-04 06:45:29,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123075982] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:45:29,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623989806] [2025-03-04 06:45:29,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:29,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:45:29,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:45:29,961 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 06:45:29,963 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 06:45:30,016 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-04 06:45:30,044 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-04 06:45:30,044 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:30,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:30,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 06:45:30,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:45:30,095 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 06:45:30,095 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 06:45:30,138 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 06:45:30,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623989806] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 06:45:30,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 06:45:30,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-04 06:45:30,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135060316] [2025-03-04 06:45:30,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 06:45:30,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 06:45:30,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:30,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 06:45:30,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-04 06:45:30,172 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 182 [2025-03-04 06:45:30,174 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 06:45:30,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:30,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 182 [2025-03-04 06:45:30,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:30,336 INFO L124 PetriNetUnfolderBase]: 24/489 cut-off events. [2025-03-04 06:45:30,336 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:45:30,339 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 06:45:30,341 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 16 selfloop transitions, 9 changer transitions 0/191 dead transitions. [2025-03-04 06:45:30,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 191 transitions, 454 flow [2025-03-04 06:45:30,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:45:30,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:45:30,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1521 transitions. [2025-03-04 06:45:30,348 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9285714285714286 [2025-03-04 06:45:30,349 INFO L175 Difference]: Start difference. First operand has 186 places, 183 transitions, 386 flow. Second operand 9 states and 1521 transitions. [2025-03-04 06:45:30,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 191 transitions, 454 flow [2025-03-04 06:45:30,350 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 06:45:30,354 INFO L231 Difference]: Finished difference. Result has 196 places, 189 transitions, 434 flow [2025-03-04 06:45:30,355 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 06:45:30,355 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 14 predicate places. [2025-03-04 06:45:30,355 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 189 transitions, 434 flow [2025-03-04 06:45:30,356 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 06:45:30,356 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:30,356 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 06:45:30,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 06:45:30,560 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 06:45:30,560 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 06:45:30,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:30,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1323425749, now seen corresponding path program 2 times [2025-03-04 06:45:30,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:30,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947959382] [2025-03-04 06:45:30,561 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:45:30,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:30,576 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 105 statements into 2 equivalence classes. [2025-03-04 06:45:30,588 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 105 statements. [2025-03-04 06:45:30,588 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:45:30,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:30,987 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 06:45:30,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:30,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947959382] [2025-03-04 06:45:30,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947959382] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:30,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:30,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:45:30,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556747707] [2025-03-04 06:45:30,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:30,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:45:30,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:30,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:45:30,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:45:31,188 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:45:31,189 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 06:45:31,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:31,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:45:31,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:31,483 INFO L124 PetriNetUnfolderBase]: 333/1545 cut-off events. [2025-03-04 06:45:31,483 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-04 06:45:31,486 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 06:45:31,494 INFO L140 encePairwiseOnDemand]: 171/182 looper letters, 36 selfloop transitions, 22 changer transitions 0/218 dead transitions. [2025-03-04 06:45:31,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 218 transitions, 608 flow [2025-03-04 06:45:31,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:45:31,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:45:31,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 977 transitions. [2025-03-04 06:45:31,497 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8946886446886447 [2025-03-04 06:45:31,498 INFO L175 Difference]: Start difference. First operand has 196 places, 189 transitions, 434 flow. Second operand 6 states and 977 transitions. [2025-03-04 06:45:31,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 218 transitions, 608 flow [2025-03-04 06:45:31,500 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 06:45:31,502 INFO L231 Difference]: Finished difference. Result has 205 places, 210 transitions, 578 flow [2025-03-04 06:45:31,503 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 06:45:31,503 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 23 predicate places. [2025-03-04 06:45:31,503 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 210 transitions, 578 flow [2025-03-04 06:45:31,504 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 06:45:31,504 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:31,504 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 06:45:31,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 06:45:31,504 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 06:45:31,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:31,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1407213627, now seen corresponding path program 1 times [2025-03-04 06:45:31,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:31,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508893394] [2025-03-04 06:45:31,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:31,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:31,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-04 06:45:31,530 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-04 06:45:31,530 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:31,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:31,667 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 06:45:31,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:31,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508893394] [2025-03-04 06:45:31,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508893394] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:45:31,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252771538] [2025-03-04 06:45:31,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:31,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:45:31,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:45:31,670 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 06:45:31,673 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 06:45:31,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-04 06:45:31,750 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-04 06:45:31,750 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:31,750 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:31,751 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 06:45:31,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:45:31,805 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 06:45:31,805 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 06:45:31,883 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 06:45:31,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252771538] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 06:45:31,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 06:45:31,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-03-04 06:45:31,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752668959] [2025-03-04 06:45:31,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 06:45:31,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-04 06:45:31,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:31,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-04 06:45:31,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-04 06:45:31,920 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 182 [2025-03-04 06:45:31,923 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 06:45:31,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:31,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 182 [2025-03-04 06:45:31,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:32,202 INFO L124 PetriNetUnfolderBase]: 118/1109 cut-off events. [2025-03-04 06:45:32,202 INFO L125 PetriNetUnfolderBase]: For 77/83 co-relation queries the response was YES. [2025-03-04 06:45:32,205 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 06:45:32,207 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 20 selfloop transitions, 21 changer transitions 0/228 dead transitions. [2025-03-04 06:45:32,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 228 transitions, 748 flow [2025-03-04 06:45:32,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-04 06:45:32,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-04 06:45:32,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3531 transitions. [2025-03-04 06:45:32,213 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.923861852433281 [2025-03-04 06:45:32,213 INFO L175 Difference]: Start difference. First operand has 205 places, 210 transitions, 578 flow. Second operand 21 states and 3531 transitions. [2025-03-04 06:45:32,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 228 transitions, 748 flow [2025-03-04 06:45:32,216 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 06:45:32,218 INFO L231 Difference]: Finished difference. Result has 230 places, 223 transitions, 708 flow [2025-03-04 06:45:32,218 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 06:45:32,219 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 48 predicate places. [2025-03-04 06:45:32,219 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 223 transitions, 708 flow [2025-03-04 06:45:32,220 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 06:45:32,220 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:32,221 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 06:45:32,227 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 06:45:32,421 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 06:45:32,421 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 06:45:32,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:32,422 INFO L85 PathProgramCache]: Analyzing trace with hash -2067257275, now seen corresponding path program 2 times [2025-03-04 06:45:32,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:32,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466538465] [2025-03-04 06:45:32,422 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:45:32,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:32,432 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 125 statements into 2 equivalence classes. [2025-03-04 06:45:32,437 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 125 statements. [2025-03-04 06:45:32,437 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:45:32,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:32,676 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 06:45:32,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:32,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466538465] [2025-03-04 06:45:32,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466538465] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:32,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:32,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:45:32,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942453723] [2025-03-04 06:45:32,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:32,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:45:32,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:32,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:45:32,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:45:32,837 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:45:32,838 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 06:45:32,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:32,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:45:32,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:33,229 INFO L124 PetriNetUnfolderBase]: 505/2412 cut-off events. [2025-03-04 06:45:33,230 INFO L125 PetriNetUnfolderBase]: For 415/445 co-relation queries the response was YES. [2025-03-04 06:45:33,234 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 06:45:33,239 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 61 selfloop transitions, 46 changer transitions 0/284 dead transitions. [2025-03-04 06:45:33,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 284 transitions, 1086 flow [2025-03-04 06:45:33,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:45:33,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:45:33,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1001 transitions. [2025-03-04 06:45:33,241 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2025-03-04 06:45:33,241 INFO L175 Difference]: Start difference. First operand has 230 places, 223 transitions, 708 flow. Second operand 6 states and 1001 transitions. [2025-03-04 06:45:33,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 284 transitions, 1086 flow [2025-03-04 06:45:33,246 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 06:45:33,250 INFO L231 Difference]: Finished difference. Result has 234 places, 268 transitions, 1038 flow [2025-03-04 06:45:33,250 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 06:45:33,252 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 52 predicate places. [2025-03-04 06:45:33,252 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 268 transitions, 1038 flow [2025-03-04 06:45:33,252 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 06:45:33,252 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:33,253 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 06:45:33,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 06:45:33,253 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 06:45:33,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:33,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1078927013, now seen corresponding path program 1 times [2025-03-04 06:45:33,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:33,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068712768] [2025-03-04 06:45:33,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:33,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:33,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-04 06:45:33,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-04 06:45:33,279 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:33,279 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:33,536 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 06:45:33,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:33,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068712768] [2025-03-04 06:45:33,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068712768] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:45:33,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321786439] [2025-03-04 06:45:33,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:33,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:45:33,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:45:33,539 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 06:45:33,540 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 06:45:33,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-04 06:45:33,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-04 06:45:33,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:33,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:33,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 06:45:33,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:45:33,717 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 06:45:33,717 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 06:45:33,913 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 06:45:33,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321786439] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 06:45:33,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 06:45:33,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-03-04 06:45:33,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577908272] [2025-03-04 06:45:33,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 06:45:33,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-04 06:45:33,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:33,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-04 06:45:33,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-03-04 06:45:33,950 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 182 [2025-03-04 06:45:33,953 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 06:45:33,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:33,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 182 [2025-03-04 06:45:33,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:34,366 INFO L124 PetriNetUnfolderBase]: 264/1738 cut-off events. [2025-03-04 06:45:34,367 INFO L125 PetriNetUnfolderBase]: For 589/618 co-relation queries the response was YES. [2025-03-04 06:45:34,372 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 06:45:34,377 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 23 selfloop transitions, 30 changer transitions 0/285 dead transitions. [2025-03-04 06:45:34,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 285 transitions, 1266 flow [2025-03-04 06:45:34,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-04 06:45:34,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-04 06:45:34,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5036 transitions. [2025-03-04 06:45:34,387 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9223443223443224 [2025-03-04 06:45:34,387 INFO L175 Difference]: Start difference. First operand has 234 places, 268 transitions, 1038 flow. Second operand 30 states and 5036 transitions. [2025-03-04 06:45:34,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 285 transitions, 1266 flow [2025-03-04 06:45:34,394 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 06:45:34,396 INFO L231 Difference]: Finished difference. Result has 267 places, 278 transitions, 1190 flow [2025-03-04 06:45:34,397 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 06:45:34,398 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 85 predicate places. [2025-03-04 06:45:34,398 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 278 transitions, 1190 flow [2025-03-04 06:45:34,400 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 06:45:34,401 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:34,401 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 06:45:34,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-04 06:45:34,601 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 06:45:34,602 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 06:45:34,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:34,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1427340449, now seen corresponding path program 2 times [2025-03-04 06:45:34,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:34,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885371627] [2025-03-04 06:45:34,603 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:45:34,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:34,616 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 148 statements into 2 equivalence classes. [2025-03-04 06:45:34,624 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 98 of 148 statements. [2025-03-04 06:45:34,624 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:45:34,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:34,852 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 06:45:34,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:34,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885371627] [2025-03-04 06:45:34,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885371627] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:34,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:34,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:45:34,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383519802] [2025-03-04 06:45:34,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:34,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:45:34,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:34,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:45:34,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:45:34,948 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 182 [2025-03-04 06:45:34,949 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 06:45:34,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:34,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 182 [2025-03-04 06:45:34,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:35,423 INFO L124 PetriNetUnfolderBase]: 949/3309 cut-off events. [2025-03-04 06:45:35,423 INFO L125 PetriNetUnfolderBase]: For 2058/2153 co-relation queries the response was YES. [2025-03-04 06:45:35,432 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 06:45:35,445 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 102 selfloop transitions, 57 changer transitions 0/333 dead transitions. [2025-03-04 06:45:35,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 333 transitions, 1752 flow [2025-03-04 06:45:35,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:45:35,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:45:35,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 943 transitions. [2025-03-04 06:45:35,448 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8635531135531136 [2025-03-04 06:45:35,449 INFO L175 Difference]: Start difference. First operand has 267 places, 278 transitions, 1190 flow. Second operand 6 states and 943 transitions. [2025-03-04 06:45:35,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 333 transitions, 1752 flow [2025-03-04 06:45:35,458 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 06:45:35,462 INFO L231 Difference]: Finished difference. Result has 259 places, 325 transitions, 1642 flow [2025-03-04 06:45:35,463 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 06:45:35,465 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 77 predicate places. [2025-03-04 06:45:35,466 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 325 transitions, 1642 flow [2025-03-04 06:45:35,466 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 06:45:35,466 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:35,467 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 06:45:35,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 06:45:35,467 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 06:45:35,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:35,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1670237187, now seen corresponding path program 1 times [2025-03-04 06:45:35,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:35,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883429847] [2025-03-04 06:45:35,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:35,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:35,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-03-04 06:45:35,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-03-04 06:45:35,505 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:35,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:35,872 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 06:45:35,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:35,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883429847] [2025-03-04 06:45:35,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883429847] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:35,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:35,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:45:35,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20420761] [2025-03-04 06:45:35,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:35,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:45:35,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:35,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:45:35,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:45:35,960 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 182 [2025-03-04 06:45:35,961 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 06:45:35,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:35,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 182 [2025-03-04 06:45:35,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:36,595 INFO L124 PetriNetUnfolderBase]: 1319/4555 cut-off events. [2025-03-04 06:45:36,595 INFO L125 PetriNetUnfolderBase]: For 4859/4990 co-relation queries the response was YES. [2025-03-04 06:45:36,611 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 06:45:36,631 INFO L140 encePairwiseOnDemand]: 159/182 looper letters, 143 selfloop transitions, 103 changer transitions 4/426 dead transitions. [2025-03-04 06:45:36,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 426 transitions, 2608 flow [2025-03-04 06:45:36,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:45:36,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:45:36,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 983 transitions. [2025-03-04 06:45:36,634 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9001831501831502 [2025-03-04 06:45:36,634 INFO L175 Difference]: Start difference. First operand has 259 places, 325 transitions, 1642 flow. Second operand 6 states and 983 transitions. [2025-03-04 06:45:36,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 426 transitions, 2608 flow [2025-03-04 06:45:36,650 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 06:45:36,654 INFO L231 Difference]: Finished difference. Result has 269 places, 410 transitions, 2494 flow [2025-03-04 06:45:36,655 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 06:45:36,659 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 87 predicate places. [2025-03-04 06:45:36,659 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 410 transitions, 2494 flow [2025-03-04 06:45:36,659 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 06:45:36,659 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:36,660 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 06:45:36,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 06:45:36,660 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 06:45:36,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:36,661 INFO L85 PathProgramCache]: Analyzing trace with hash 496308676, now seen corresponding path program 1 times [2025-03-04 06:45:36,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:36,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716720100] [2025-03-04 06:45:36,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:45:36,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:36,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-04 06:45:36,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:45:36,687 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:36,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:37,090 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 06:45:37,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:37,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716720100] [2025-03-04 06:45:37,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716720100] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:37,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:37,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:45:37,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324158230] [2025-03-04 06:45:37,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:37,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:45:37,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:37,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:45:37,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:45:38,195 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:45:38,196 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 06:45:38,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:38,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:45:38,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:38,936 INFO L124 PetriNetUnfolderBase]: 1231/4917 cut-off events. [2025-03-04 06:45:38,936 INFO L125 PetriNetUnfolderBase]: For 6125/6264 co-relation queries the response was YES. [2025-03-04 06:45:38,952 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 06:45:38,968 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 73 selfloop transitions, 15 changer transitions 0/468 dead transitions. [2025-03-04 06:45:38,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 468 transitions, 2786 flow [2025-03-04 06:45:38,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:45:38,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:45:38,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1467 transitions. [2025-03-04 06:45:38,974 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8956043956043956 [2025-03-04 06:45:38,974 INFO L175 Difference]: Start difference. First operand has 269 places, 410 transitions, 2494 flow. Second operand 9 states and 1467 transitions. [2025-03-04 06:45:38,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 468 transitions, 2786 flow [2025-03-04 06:45:39,005 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 06:45:39,009 INFO L231 Difference]: Finished difference. Result has 284 places, 424 transitions, 2492 flow [2025-03-04 06:45:39,010 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 06:45:39,010 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 102 predicate places. [2025-03-04 06:45:39,010 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 424 transitions, 2492 flow [2025-03-04 06:45:39,011 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 06:45:39,011 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:39,011 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 06:45:39,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 06:45:39,011 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 06:45:39,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:39,012 INFO L85 PathProgramCache]: Analyzing trace with hash 510152904, now seen corresponding path program 2 times [2025-03-04 06:45:39,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:39,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136085611] [2025-03-04 06:45:39,012 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:45:39,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:39,023 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-04 06:45:39,031 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-04 06:45:39,032 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:45:39,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:39,302 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 06:45:39,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:39,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136085611] [2025-03-04 06:45:39,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136085611] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:39,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:39,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:45:39,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694720067] [2025-03-04 06:45:39,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:39,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:45:39,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:39,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:45:39,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:45:40,450 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:45:40,451 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 06:45:40,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:40,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:45:40,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:41,720 INFO L124 PetriNetUnfolderBase]: 2479/9316 cut-off events. [2025-03-04 06:45:41,720 INFO L125 PetriNetUnfolderBase]: For 12598/12898 co-relation queries the response was YES. [2025-03-04 06:45:41,752 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 06:45:41,779 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 119 selfloop transitions, 20 changer transitions 4/523 dead transitions. [2025-03-04 06:45:41,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 523 transitions, 3210 flow [2025-03-04 06:45:41,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:45:41,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:45:41,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1475 transitions. [2025-03-04 06:45:41,781 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9004884004884005 [2025-03-04 06:45:41,781 INFO L175 Difference]: Start difference. First operand has 284 places, 424 transitions, 2492 flow. Second operand 9 states and 1475 transitions. [2025-03-04 06:45:41,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 523 transitions, 3210 flow [2025-03-04 06:45:41,840 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 06:45:41,844 INFO L231 Difference]: Finished difference. Result has 298 places, 441 transitions, 2671 flow [2025-03-04 06:45:41,845 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 06:45:41,845 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 116 predicate places. [2025-03-04 06:45:41,845 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 441 transitions, 2671 flow [2025-03-04 06:45:41,846 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 06:45:41,846 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:41,846 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 06:45:41,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 06:45:41,846 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 06:45:41,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:41,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1645867836, now seen corresponding path program 3 times [2025-03-04 06:45:41,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:41,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652405302] [2025-03-04 06:45:41,847 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 06:45:41,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:41,858 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:45:41,865 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-04 06:45:41,865 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 06:45:41,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:42,146 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 06:45:42,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:42,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652405302] [2025-03-04 06:45:42,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652405302] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:42,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:42,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:45:42,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589073661] [2025-03-04 06:45:42,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:42,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:45:42,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:42,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:45:42,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:45:43,324 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:45:43,325 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 06:45:43,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:43,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:45:43,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:45,110 INFO L124 PetriNetUnfolderBase]: 2778/10527 cut-off events. [2025-03-04 06:45:45,110 INFO L125 PetriNetUnfolderBase]: For 16366/16818 co-relation queries the response was YES. [2025-03-04 06:45:45,142 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 06:45:45,168 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 123 selfloop transitions, 22 changer transitions 0/525 dead transitions. [2025-03-04 06:45:45,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 525 transitions, 3459 flow [2025-03-04 06:45:45,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:45:45,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:45:45,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1472 transitions. [2025-03-04 06:45:45,170 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8986568986568987 [2025-03-04 06:45:45,170 INFO L175 Difference]: Start difference. First operand has 298 places, 441 transitions, 2671 flow. Second operand 9 states and 1472 transitions. [2025-03-04 06:45:45,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 525 transitions, 3459 flow [2025-03-04 06:45:45,238 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 06:45:45,242 INFO L231 Difference]: Finished difference. Result has 311 places, 453 transitions, 2840 flow [2025-03-04 06:45:45,243 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 06:45:45,244 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 129 predicate places. [2025-03-04 06:45:45,244 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 453 transitions, 2840 flow [2025-03-04 06:45:45,244 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 06:45:45,245 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:45,245 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 06:45:45,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-04 06:45:45,245 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 06:45:45,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:45,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1851917024, now seen corresponding path program 4 times [2025-03-04 06:45:45,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:45,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188155070] [2025-03-04 06:45:45,246 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 06:45:45,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:45,260 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-04 06:45:45,291 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 06:45:45,292 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 06:45:45,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:45,740 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 06:45:45,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:45,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188155070] [2025-03-04 06:45:45,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188155070] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:45,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:45,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-04 06:45:45,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281675000] [2025-03-04 06:45:45,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:45,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 06:45:45,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:45,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 06:45:45,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-03-04 06:45:46,901 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:45:46,902 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 06:45:46,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:46,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:45:46,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:48,458 INFO L124 PetriNetUnfolderBase]: 3073/11395 cut-off events. [2025-03-04 06:45:48,458 INFO L125 PetriNetUnfolderBase]: For 20248/20704 co-relation queries the response was YES. [2025-03-04 06:45:48,506 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 06:45:48,534 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 137 selfloop transitions, 28 changer transitions 4/549 dead transitions. [2025-03-04 06:45:48,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 549 transitions, 3825 flow [2025-03-04 06:45:48,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 06:45:48,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 06:45:48,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1631 transitions. [2025-03-04 06:45:48,536 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8961538461538462 [2025-03-04 06:45:48,536 INFO L175 Difference]: Start difference. First operand has 311 places, 453 transitions, 2840 flow. Second operand 10 states and 1631 transitions. [2025-03-04 06:45:48,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 549 transitions, 3825 flow [2025-03-04 06:45:48,626 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 06:45:48,630 INFO L231 Difference]: Finished difference. Result has 322 places, 465 transitions, 3021 flow [2025-03-04 06:45:48,631 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 06:45:48,632 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 140 predicate places. [2025-03-04 06:45:48,632 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 465 transitions, 3021 flow [2025-03-04 06:45:48,633 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 06:45:48,633 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:48,633 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 06:45:48,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-04 06:45:48,633 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 06:45:48,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:48,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1516329702, now seen corresponding path program 5 times [2025-03-04 06:45:48,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:48,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848266813] [2025-03-04 06:45:48,636 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 06:45:48,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:48,651 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:45:48,668 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:45:48,668 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-04 06:45:48,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:49,376 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 06:45:49,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:49,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848266813] [2025-03-04 06:45:49,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848266813] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:45:49,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842358814] [2025-03-04 06:45:49,377 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 06:45:49,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:45:49,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:45:49,379 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 06:45:49,381 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 06:45:49,449 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:45:49,510 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:45:49,510 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-04 06:45:49,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:49,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-04 06:45:49,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:45:49,744 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 06:45:49,803 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 06:45:49,803 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 06:45:49,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842358814] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:49,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 06:45:49,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-03-04 06:45:49,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99806403] [2025-03-04 06:45:49,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:49,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 06:45:49,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:49,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 06:45:49,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2025-03-04 06:45:50,802 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:45:50,803 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 06:45:50,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:50,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:45:50,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:52,564 INFO L124 PetriNetUnfolderBase]: 3406/12720 cut-off events. [2025-03-04 06:45:52,564 INFO L125 PetriNetUnfolderBase]: For 25302/25896 co-relation queries the response was YES. [2025-03-04 06:45:52,638 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 06:45:52,671 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 136 selfloop transitions, 30 changer transitions 0/546 dead transitions. [2025-03-04 06:45:52,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 546 transitions, 4004 flow [2025-03-04 06:45:52,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 06:45:52,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 06:45:52,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1628 transitions. [2025-03-04 06:45:52,672 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8945054945054945 [2025-03-04 06:45:52,672 INFO L175 Difference]: Start difference. First operand has 322 places, 465 transitions, 3021 flow. Second operand 10 states and 1628 transitions. [2025-03-04 06:45:52,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 546 transitions, 4004 flow [2025-03-04 06:45:52,775 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 06:45:52,780 INFO L231 Difference]: Finished difference. Result has 333 places, 480 transitions, 3259 flow [2025-03-04 06:45:52,780 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 06:45:52,781 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 151 predicate places. [2025-03-04 06:45:52,781 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 480 transitions, 3259 flow [2025-03-04 06:45:52,781 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 06:45:52,781 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:52,781 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 06:45:52,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-04 06:45:52,982 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 06:45:52,982 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 06:45:52,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:52,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1220419554, now seen corresponding path program 6 times [2025-03-04 06:45:52,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:52,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852500635] [2025-03-04 06:45:52,983 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 06:45:52,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:52,993 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:45:52,997 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-04 06:45:52,997 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-04 06:45:52,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:53,167 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 06:45:53,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:53,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852500635] [2025-03-04 06:45:53,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852500635] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:53,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:53,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:45:53,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705807666] [2025-03-04 06:45:53,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:53,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:45:53,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:53,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:45:53,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:45:54,086 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:45:54,087 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 06:45:54,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:54,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:45:54,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:55,984 INFO L124 PetriNetUnfolderBase]: 3725/13728 cut-off events. [2025-03-04 06:45:55,984 INFO L125 PetriNetUnfolderBase]: For 31550/32164 co-relation queries the response was YES. [2025-03-04 06:45:56,046 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 06:45:56,083 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 154 selfloop transitions, 34 changer transitions 2/570 dead transitions. [2025-03-04 06:45:56,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 570 transitions, 4410 flow [2025-03-04 06:45:56,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:45:56,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:45:56,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1479 transitions. [2025-03-04 06:45:56,085 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9029304029304029 [2025-03-04 06:45:56,085 INFO L175 Difference]: Start difference. First operand has 333 places, 480 transitions, 3259 flow. Second operand 9 states and 1479 transitions. [2025-03-04 06:45:56,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 570 transitions, 4410 flow [2025-03-04 06:45:56,213 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 06:45:56,218 INFO L231 Difference]: Finished difference. Result has 344 places, 495 transitions, 3504 flow [2025-03-04 06:45:56,218 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 06:45:56,218 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 162 predicate places. [2025-03-04 06:45:56,218 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 495 transitions, 3504 flow [2025-03-04 06:45:56,219 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 06:45:56,219 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:56,219 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 06:45:56,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-04 06:45:56,219 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 06:45:56,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:56,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1576277874, now seen corresponding path program 7 times [2025-03-04 06:45:56,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:56,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448542322] [2025-03-04 06:45:56,220 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 06:45:56,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:45:56,230 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-04 06:45:56,238 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:45:56,238 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:45:56,238 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:45:56,447 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 06:45:56,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:45:56,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448542322] [2025-03-04 06:45:56,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448542322] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:45:56,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:45:56,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:45:56,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954793295] [2025-03-04 06:45:56,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:45:56,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:45:56,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:45:56,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:45:56,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:45:57,178 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:45:57,180 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 06:45:57,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:45:57,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:45:57,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:45:59,679 INFO L124 PetriNetUnfolderBase]: 4068/15087 cut-off events. [2025-03-04 06:45:59,679 INFO L125 PetriNetUnfolderBase]: For 39976/40637 co-relation queries the response was YES. [2025-03-04 06:45:59,768 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 06:45:59,809 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 150 selfloop transitions, 36 changer transitions 0/566 dead transitions. [2025-03-04 06:45:59,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 566 transitions, 4606 flow [2025-03-04 06:45:59,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:45:59,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:45:59,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1477 transitions. [2025-03-04 06:45:59,811 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9017094017094017 [2025-03-04 06:45:59,811 INFO L175 Difference]: Start difference. First operand has 344 places, 495 transitions, 3504 flow. Second operand 9 states and 1477 transitions. [2025-03-04 06:45:59,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 566 transitions, 4606 flow [2025-03-04 06:45:59,987 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 06:45:59,992 INFO L231 Difference]: Finished difference. Result has 357 places, 514 transitions, 3855 flow [2025-03-04 06:45:59,992 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 06:45:59,993 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 175 predicate places. [2025-03-04 06:45:59,993 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 514 transitions, 3855 flow [2025-03-04 06:45:59,993 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 06:45:59,993 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:45:59,993 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 06:45:59,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-04 06:45:59,994 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 06:45:59,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:45:59,995 INFO L85 PathProgramCache]: Analyzing trace with hash 2116917232, now seen corresponding path program 8 times [2025-03-04 06:45:59,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:45:59,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080252070] [2025-03-04 06:45:59,995 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:45:59,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:00,007 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-04 06:46:00,014 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-04 06:46:00,014 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:46:00,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:00,222 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 06:46:00,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:00,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080252070] [2025-03-04 06:46:00,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080252070] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:00,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:46:00,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:46:00,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247119610] [2025-03-04 06:46:00,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:00,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:46:00,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:00,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:46:00,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:46:00,770 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:00,771 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 06:46:00,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:00,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:00,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:03,537 INFO L124 PetriNetUnfolderBase]: 4671/16951 cut-off events. [2025-03-04 06:46:03,537 INFO L125 PetriNetUnfolderBase]: For 51043/51927 co-relation queries the response was YES. [2025-03-04 06:46:03,628 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 06:46:03,670 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 173 selfloop transitions, 45 changer transitions 0/598 dead transitions. [2025-03-04 06:46:03,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 598 transitions, 5172 flow [2025-03-04 06:46:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:46:03,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:46:03,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1481 transitions. [2025-03-04 06:46:03,671 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9041514041514042 [2025-03-04 06:46:03,671 INFO L175 Difference]: Start difference. First operand has 357 places, 514 transitions, 3855 flow. Second operand 9 states and 1481 transitions. [2025-03-04 06:46:03,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 598 transitions, 5172 flow [2025-03-04 06:46:03,891 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 06:46:03,896 INFO L231 Difference]: Finished difference. Result has 372 places, 532 transitions, 4209 flow [2025-03-04 06:46:03,896 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 06:46:03,897 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 190 predicate places. [2025-03-04 06:46:03,897 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 532 transitions, 4209 flow [2025-03-04 06:46:03,897 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 06:46:03,897 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:03,897 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 06:46:03,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-04 06:46:03,897 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 06:46:03,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:03,898 INFO L85 PathProgramCache]: Analyzing trace with hash 487230494, now seen corresponding path program 9 times [2025-03-04 06:46:03,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:03,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828459653] [2025-03-04 06:46:03,899 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 06:46:03,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:03,911 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:46:03,914 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-04 06:46:03,915 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 06:46:03,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:04,054 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 06:46:04,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:04,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828459653] [2025-03-04 06:46:04,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828459653] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:04,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:46:04,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:46:04,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484213762] [2025-03-04 06:46:04,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:04,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:46:04,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:04,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:46:04,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:46:04,798 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:04,799 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 06:46:04,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:04,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:04,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:07,744 INFO L124 PetriNetUnfolderBase]: 4663/17065 cut-off events. [2025-03-04 06:46:07,744 INFO L125 PetriNetUnfolderBase]: For 56745/57647 co-relation queries the response was YES. [2025-03-04 06:46:07,844 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 06:46:07,894 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 185 selfloop transitions, 58 changer transitions 0/623 dead transitions. [2025-03-04 06:46:07,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 623 transitions, 5535 flow [2025-03-04 06:46:07,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:46:07,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:46:07,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1470 transitions. [2025-03-04 06:46:07,896 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8974358974358975 [2025-03-04 06:46:07,896 INFO L175 Difference]: Start difference. First operand has 372 places, 532 transitions, 4209 flow. Second operand 9 states and 1470 transitions. [2025-03-04 06:46:07,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 623 transitions, 5535 flow [2025-03-04 06:46:08,158 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 06:46:08,164 INFO L231 Difference]: Finished difference. Result has 384 places, 544 transitions, 4449 flow [2025-03-04 06:46:08,164 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 06:46:08,164 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 202 predicate places. [2025-03-04 06:46:08,165 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 544 transitions, 4449 flow [2025-03-04 06:46:08,165 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 06:46:08,165 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:08,165 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 06:46:08,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-04 06:46:08,165 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 06:46:08,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:08,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1094714860, now seen corresponding path program 10 times [2025-03-04 06:46:08,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:08,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753394639] [2025-03-04 06:46:08,167 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 06:46:08,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:08,178 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-04 06:46:08,189 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 06:46:08,190 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 06:46:08,190 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:08,719 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 06:46:08,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:08,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753394639] [2025-03-04 06:46:08,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753394639] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:08,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:46:08,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-04 06:46:08,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125694870] [2025-03-04 06:46:08,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:08,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 06:46:08,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:08,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 06:46:08,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-04 06:46:09,481 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:09,482 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 06:46:09,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:09,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:09,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:12,144 INFO L124 PetriNetUnfolderBase]: 4388/16276 cut-off events. [2025-03-04 06:46:12,145 INFO L125 PetriNetUnfolderBase]: For 58688/59591 co-relation queries the response was YES. [2025-03-04 06:46:12,221 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 06:46:12,256 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 185 selfloop transitions, 55 changer transitions 0/620 dead transitions. [2025-03-04 06:46:12,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 620 transitions, 5663 flow [2025-03-04 06:46:12,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 06:46:12,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 06:46:12,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1621 transitions. [2025-03-04 06:46:12,265 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8906593406593407 [2025-03-04 06:46:12,265 INFO L175 Difference]: Start difference. First operand has 384 places, 544 transitions, 4449 flow. Second operand 10 states and 1621 transitions. [2025-03-04 06:46:12,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 620 transitions, 5663 flow [2025-03-04 06:46:12,494 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 06:46:12,499 INFO L231 Difference]: Finished difference. Result has 392 places, 547 transitions, 4483 flow [2025-03-04 06:46:12,499 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 06:46:12,499 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 210 predicate places. [2025-03-04 06:46:12,499 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 547 transitions, 4483 flow [2025-03-04 06:46:12,500 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 06:46:12,500 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:12,500 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 06:46:12,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-04 06:46:12,500 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 06:46:12,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:12,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1274962040, now seen corresponding path program 11 times [2025-03-04 06:46:12,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:12,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85039757] [2025-03-04 06:46:12,502 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 06:46:12,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:12,510 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:46:12,517 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:46:12,517 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-04 06:46:12,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:12,850 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 06:46:12,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:12,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85039757] [2025-03-04 06:46:12,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85039757] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:46:12,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74620625] [2025-03-04 06:46:12,851 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 06:46:12,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:46:12,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:46:12,853 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 06:46:12,854 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 06:46:12,935 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:46:12,992 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:46:12,993 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-04 06:46:12,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:12,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-03-04 06:46:12,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:46:13,208 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 06:46:13,238 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 06:46:13,238 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 06:46:13,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74620625] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:13,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 06:46:13,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-03-04 06:46:13,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471209869] [2025-03-04 06:46:13,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:13,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 06:46:13,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:13,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 06:46:13,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2025-03-04 06:46:13,949 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:13,950 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 06:46:13,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:13,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:13,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:16,915 INFO L124 PetriNetUnfolderBase]: 4390/16303 cut-off events. [2025-03-04 06:46:16,916 INFO L125 PetriNetUnfolderBase]: For 56430/57210 co-relation queries the response was YES. [2025-03-04 06:46:17,014 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 06:46:17,051 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 179 selfloop transitions, 61 changer transitions 0/620 dead transitions. [2025-03-04 06:46:17,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 620 transitions, 5647 flow [2025-03-04 06:46:17,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 06:46:17,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 06:46:17,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1624 transitions. [2025-03-04 06:46:17,052 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8923076923076924 [2025-03-04 06:46:17,052 INFO L175 Difference]: Start difference. First operand has 392 places, 547 transitions, 4483 flow. Second operand 10 states and 1624 transitions. [2025-03-04 06:46:17,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 620 transitions, 5647 flow [2025-03-04 06:46:17,277 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 06:46:17,283 INFO L231 Difference]: Finished difference. Result has 400 places, 558 transitions, 4735 flow [2025-03-04 06:46:17,283 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 06:46:17,283 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 218 predicate places. [2025-03-04 06:46:17,283 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 558 transitions, 4735 flow [2025-03-04 06:46:17,284 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 06:46:17,284 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:17,284 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 06:46:17,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-04 06:46:17,484 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 06:46:17,485 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 06:46:17,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:17,486 INFO L85 PathProgramCache]: Analyzing trace with hash 2102762288, now seen corresponding path program 12 times [2025-03-04 06:46:17,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:17,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125876641] [2025-03-04 06:46:17,486 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 06:46:17,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:17,498 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:46:17,503 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-04 06:46:17,503 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-04 06:46:17,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:17,703 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 06:46:17,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:17,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125876641] [2025-03-04 06:46:17,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125876641] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:17,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:46:17,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:46:17,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764947292] [2025-03-04 06:46:17,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:17,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:46:17,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:17,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:46:17,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:46:18,617 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:18,618 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 06:46:18,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:18,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:18,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:21,618 INFO L124 PetriNetUnfolderBase]: 4679/17288 cut-off events. [2025-03-04 06:46:21,619 INFO L125 PetriNetUnfolderBase]: For 63711/64533 co-relation queries the response was YES. [2025-03-04 06:46:21,703 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 06:46:21,739 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 203 selfloop transitions, 49 changer transitions 0/632 dead transitions. [2025-03-04 06:46:21,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 632 transitions, 6071 flow [2025-03-04 06:46:21,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:46:21,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:46:21,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1479 transitions. [2025-03-04 06:46:21,740 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9029304029304029 [2025-03-04 06:46:21,740 INFO L175 Difference]: Start difference. First operand has 400 places, 558 transitions, 4735 flow. Second operand 9 states and 1479 transitions. [2025-03-04 06:46:21,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 632 transitions, 6071 flow [2025-03-04 06:46:21,999 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 06:46:22,005 INFO L231 Difference]: Finished difference. Result has 408 places, 568 transitions, 4915 flow [2025-03-04 06:46:22,005 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 06:46:22,005 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 226 predicate places. [2025-03-04 06:46:22,005 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 568 transitions, 4915 flow [2025-03-04 06:46:22,006 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 06:46:22,006 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:22,006 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 06:46:22,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-04 06:46:22,006 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 06:46:22,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:22,007 INFO L85 PathProgramCache]: Analyzing trace with hash -278668322, now seen corresponding path program 13 times [2025-03-04 06:46:22,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:22,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54833863] [2025-03-04 06:46:22,007 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 06:46:22,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:22,017 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-04 06:46:22,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:46:22,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:46:22,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:22,190 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 06:46:22,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:22,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54833863] [2025-03-04 06:46:22,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54833863] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:22,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:46:22,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:46:22,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478149816] [2025-03-04 06:46:22,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:22,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:46:22,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:22,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:46:22,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:46:22,811 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:22,812 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 06:46:22,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:22,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:22,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:25,822 INFO L124 PetriNetUnfolderBase]: 4685/17399 cut-off events. [2025-03-04 06:46:25,822 INFO L125 PetriNetUnfolderBase]: For 62894/63727 co-relation queries the response was YES. [2025-03-04 06:46:25,931 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 06:46:25,978 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 192 selfloop transitions, 66 changer transitions 0/638 dead transitions. [2025-03-04 06:46:25,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 638 transitions, 6128 flow [2025-03-04 06:46:25,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:46:25,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:46:25,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1473 transitions. [2025-03-04 06:46:25,980 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8992673992673993 [2025-03-04 06:46:25,980 INFO L175 Difference]: Start difference. First operand has 408 places, 568 transitions, 4915 flow. Second operand 9 states and 1473 transitions. [2025-03-04 06:46:25,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 638 transitions, 6128 flow [2025-03-04 06:46:26,272 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 06:46:26,278 INFO L231 Difference]: Finished difference. Result has 415 places, 577 transitions, 5143 flow [2025-03-04 06:46:26,279 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 06:46:26,279 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 233 predicate places. [2025-03-04 06:46:26,279 INFO L471 AbstractCegarLoop]: Abstraction has has 415 places, 577 transitions, 5143 flow [2025-03-04 06:46:26,280 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 06:46:26,280 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:26,280 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 06:46:26,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-04 06:46:26,280 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 06:46:26,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:26,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1673346218, now seen corresponding path program 14 times [2025-03-04 06:46:26,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:26,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543789506] [2025-03-04 06:46:26,281 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:46:26,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:26,293 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-04 06:46:26,299 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-04 06:46:26,299 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:46:26,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:26,680 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 06:46:26,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:26,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543789506] [2025-03-04 06:46:26,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543789506] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:26,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:46:26,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:46:26,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870344866] [2025-03-04 06:46:26,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:26,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:46:26,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:26,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:46:26,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:46:27,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:27,268 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 06:46:27,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:27,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:27,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:30,520 INFO L124 PetriNetUnfolderBase]: 4684/17407 cut-off events. [2025-03-04 06:46:30,520 INFO L125 PetriNetUnfolderBase]: For 64298/65195 co-relation queries the response was YES. [2025-03-04 06:46:30,641 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 06:46:30,681 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 202 selfloop transitions, 62 changer transitions 0/644 dead transitions. [2025-03-04 06:46:30,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 644 transitions, 6353 flow [2025-03-04 06:46:30,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:46:30,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:46:30,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1474 transitions. [2025-03-04 06:46:30,683 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8998778998778999 [2025-03-04 06:46:30,683 INFO L175 Difference]: Start difference. First operand has 415 places, 577 transitions, 5143 flow. Second operand 9 states and 1474 transitions. [2025-03-04 06:46:30,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 644 transitions, 6353 flow [2025-03-04 06:46:30,954 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 06:46:30,959 INFO L231 Difference]: Finished difference. Result has 422 places, 585 transitions, 5341 flow [2025-03-04 06:46:30,960 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 06:46:30,960 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 240 predicate places. [2025-03-04 06:46:30,960 INFO L471 AbstractCegarLoop]: Abstraction has has 422 places, 585 transitions, 5341 flow [2025-03-04 06:46:30,960 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 06:46:30,960 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:30,960 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 06:46:30,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-04 06:46:30,960 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 06:46:30,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:30,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1515371174, now seen corresponding path program 15 times [2025-03-04 06:46:30,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:30,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734292640] [2025-03-04 06:46:30,962 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 06:46:30,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:30,969 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:46:30,973 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-04 06:46:30,973 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 06:46:30,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:31,101 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 06:46:31,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:31,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734292640] [2025-03-04 06:46:31,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734292640] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:31,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:46:31,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:46:31,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592494370] [2025-03-04 06:46:31,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:31,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:46:31,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:31,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:46:31,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:46:31,715 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:31,716 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 06:46:31,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:31,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:31,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:34,443 INFO L124 PetriNetUnfolderBase]: 4411/16574 cut-off events. [2025-03-04 06:46:34,443 INFO L125 PetriNetUnfolderBase]: For 61535/62336 co-relation queries the response was YES. [2025-03-04 06:46:34,569 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 06:46:34,608 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 198 selfloop transitions, 64 changer transitions 0/642 dead transitions. [2025-03-04 06:46:34,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 642 transitions, 6405 flow [2025-03-04 06:46:34,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:46:34,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:46:34,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1476 transitions. [2025-03-04 06:46:34,609 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9010989010989011 [2025-03-04 06:46:34,610 INFO L175 Difference]: Start difference. First operand has 422 places, 585 transitions, 5341 flow. Second operand 9 states and 1476 transitions. [2025-03-04 06:46:34,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 642 transitions, 6405 flow [2025-03-04 06:46:35,068 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 06:46:35,074 INFO L231 Difference]: Finished difference. Result has 429 places, 592 transitions, 5531 flow [2025-03-04 06:46:35,074 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 06:46:35,075 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 247 predicate places. [2025-03-04 06:46:35,075 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 592 transitions, 5531 flow [2025-03-04 06:46:35,075 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 06:46:35,075 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:35,075 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:46:35,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-04 06:46:35,076 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 06:46:35,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:35,077 INFO L85 PathProgramCache]: Analyzing trace with hash 321531544, now seen corresponding path program 16 times [2025-03-04 06:46:35,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:35,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201527714] [2025-03-04 06:46:35,077 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 06:46:35,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:35,088 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-04 06:46:35,098 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 06:46:35,098 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 06:46:35,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:35,595 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 06:46:35,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:35,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201527714] [2025-03-04 06:46:35,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201527714] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:35,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:46:35,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-04 06:46:35,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953593902] [2025-03-04 06:46:35,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:35,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 06:46:35,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:35,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 06:46:35,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-04 06:46:36,496 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:36,497 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 06:46:36,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:36,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:36,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:39,573 INFO L124 PetriNetUnfolderBase]: 4134/15707 cut-off events. [2025-03-04 06:46:39,573 INFO L125 PetriNetUnfolderBase]: For 58007/58797 co-relation queries the response was YES. [2025-03-04 06:46:39,841 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 06:46:39,896 INFO L140 encePairwiseOnDemand]: 165/182 looper letters, 204 selfloop transitions, 62 changer transitions 0/646 dead transitions. [2025-03-04 06:46:39,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 646 transitions, 6577 flow [2025-03-04 06:46:39,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 06:46:39,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 06:46:39,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1631 transitions. [2025-03-04 06:46:39,898 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8961538461538462 [2025-03-04 06:46:39,898 INFO L175 Difference]: Start difference. First operand has 429 places, 592 transitions, 5531 flow. Second operand 10 states and 1631 transitions. [2025-03-04 06:46:39,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 646 transitions, 6577 flow [2025-03-04 06:46:40,508 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 06:46:40,514 INFO L231 Difference]: Finished difference. Result has 436 places, 599 transitions, 5646 flow [2025-03-04 06:46:40,514 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 06:46:40,514 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 254 predicate places. [2025-03-04 06:46:40,514 INFO L471 AbstractCegarLoop]: Abstraction has has 436 places, 599 transitions, 5646 flow [2025-03-04 06:46:40,515 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 06:46:40,515 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:40,515 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 06:46:40,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-04 06:46:40,515 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 06:46:40,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:40,516 INFO L85 PathProgramCache]: Analyzing trace with hash -652315696, now seen corresponding path program 17 times [2025-03-04 06:46:40,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:40,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227110976] [2025-03-04 06:46:40,516 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 06:46:40,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:40,524 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:46:40,530 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:46:40,530 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-04 06:46:40,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:41,023 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 06:46:41,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:41,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227110976] [2025-03-04 06:46:41,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227110976] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:46:41,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968607758] [2025-03-04 06:46:41,024 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 06:46:41,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:46:41,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:46:41,026 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 06:46:41,026 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 06:46:41,098 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:46:41,153 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:46:41,153 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-04 06:46:41,153 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:41,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-03-04 06:46:41,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:46:41,306 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 06:46:41,343 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 06:46:41,343 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 06:46:41,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968607758] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:41,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 06:46:41,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-03-04 06:46:41,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859814092] [2025-03-04 06:46:41,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:41,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 06:46:41,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:41,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 06:46:41,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2025-03-04 06:46:42,108 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:42,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 599 transitions, 5646 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 06:46:42,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:42,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:42,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:44,806 INFO L124 PetriNetUnfolderBase]: 4138/15721 cut-off events. [2025-03-04 06:46:44,806 INFO L125 PetriNetUnfolderBase]: For 57287/58021 co-relation queries the response was YES. [2025-03-04 06:46:45,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54293 conditions, 15721 events. 4138/15721 cut-off events. For 57287/58021 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 164731 event pairs, 487 based on Foata normal form. 163/15675 useless extension candidates. Maximal degree in co-relation 53930. Up to 2448 conditions per place. [2025-03-04 06:46:45,171 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 189 selfloop transitions, 87 changer transitions 0/656 dead transitions. [2025-03-04 06:46:45,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 656 transitions, 6791 flow [2025-03-04 06:46:45,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 06:46:45,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 06:46:45,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1624 transitions. [2025-03-04 06:46:45,173 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8923076923076924 [2025-03-04 06:46:45,173 INFO L175 Difference]: Start difference. First operand has 436 places, 599 transitions, 5646 flow. Second operand 10 states and 1624 transitions. [2025-03-04 06:46:45,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 656 transitions, 6791 flow [2025-03-04 06:46:45,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 656 transitions, 6626 flow, removed 24 selfloop flow, removed 6 redundant places. [2025-03-04 06:46:45,512 INFO L231 Difference]: Finished difference. Result has 445 places, 613 transitions, 6051 flow [2025-03-04 06:46:45,513 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=5499, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6051, PETRI_PLACES=445, PETRI_TRANSITIONS=613} [2025-03-04 06:46:45,513 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 263 predicate places. [2025-03-04 06:46:45,513 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 613 transitions, 6051 flow [2025-03-04 06:46:45,513 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 06:46:45,513 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:45,514 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 06:46:45,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-04 06:46:45,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:46:45,714 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 06:46:45,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:45,716 INFO L85 PathProgramCache]: Analyzing trace with hash 10071268, now seen corresponding path program 18 times [2025-03-04 06:46:45,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:45,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278245126] [2025-03-04 06:46:45,716 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 06:46:45,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:45,729 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-03-04 06:46:45,733 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-04 06:46:45,734 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-04 06:46:45,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:45,871 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 06:46:45,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:45,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278245126] [2025-03-04 06:46:45,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278245126] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:45,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:46:45,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:46:45,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481443031] [2025-03-04 06:46:45,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:45,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:46:45,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:45,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:46:45,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:46:46,528 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:46,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 613 transitions, 6051 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 06:46:46,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:46,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:46,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:46:49,224 INFO L124 PetriNetUnfolderBase]: 4424/16679 cut-off events. [2025-03-04 06:46:49,225 INFO L125 PetriNetUnfolderBase]: For 65034/65881 co-relation queries the response was YES. [2025-03-04 06:46:49,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58252 conditions, 16679 events. 4424/16679 cut-off events. For 65034/65881 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 177003 event pairs, 492 based on Foata normal form. 150/16615 useless extension candidates. Maximal degree in co-relation 57883. Up to 2615 conditions per place. [2025-03-04 06:46:49,579 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 244 selfloop transitions, 46 changer transitions 0/670 dead transitions. [2025-03-04 06:46:49,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 670 transitions, 7349 flow [2025-03-04 06:46:49,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 06:46:49,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 06:46:49,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1481 transitions. [2025-03-04 06:46:49,580 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9041514041514042 [2025-03-04 06:46:49,580 INFO L175 Difference]: Start difference. First operand has 445 places, 613 transitions, 6051 flow. Second operand 9 states and 1481 transitions. [2025-03-04 06:46:49,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 670 transitions, 7349 flow [2025-03-04 06:46:49,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 670 transitions, 7152 flow, removed 98 selfloop flow, removed 1 redundant places. [2025-03-04 06:46:49,949 INFO L231 Difference]: Finished difference. Result has 456 places, 623 transitions, 6240 flow [2025-03-04 06:46:49,950 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=5956, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=613, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=570, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6240, PETRI_PLACES=456, PETRI_TRANSITIONS=623} [2025-03-04 06:46:49,950 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 274 predicate places. [2025-03-04 06:46:49,950 INFO L471 AbstractCegarLoop]: Abstraction has has 456 places, 623 transitions, 6240 flow [2025-03-04 06:46:49,950 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 06:46:49,950 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:46:49,950 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 06:46:49,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-03-04 06:46:49,951 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-04 06:46:49,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:46:49,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1462050552, now seen corresponding path program 19 times [2025-03-04 06:46:49,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:46:49,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880526517] [2025-03-04 06:46:49,952 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 06:46:49,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:46:49,959 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-04 06:46:49,964 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-04 06:46:49,964 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:46:49,964 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:46:50,135 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 06:46:50,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:46:50,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880526517] [2025-03-04 06:46:50,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880526517] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:46:50,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:46:50,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 06:46:50,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490604130] [2025-03-04 06:46:50,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:46:50,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 06:46:50,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:46:50,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 06:46:50,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-04 06:46:50,744 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-04 06:46:50,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 623 transitions, 6240 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 06:46:50,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:46:50,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-04 06:46:50,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand