./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 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_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-?-8fc3dc6-m [2025-03-17 11:04:25,495 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:04:25,560 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-17 11:04:25,564 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:04:25,568 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:04:25,585 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:04:25,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:04:25,586 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:04:25,586 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:04:25,587 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:04:25,587 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:04:25,587 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:04:25,587 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:04:25,587 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:04:25,587 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:04:25,588 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:04:25,588 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:04:25,589 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:04:25,589 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:04:25,589 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:04:25,589 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:04:25,589 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:04:25,589 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-17 11:04:25,589 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:04:25,589 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:04:25,589 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:04:25,590 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:04:25,590 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:04:25,590 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:04:25,590 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:04:25,590 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:04:25,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:04:25,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:04:25,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:04:25,591 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 11:04:25,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 11:04:25,591 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:04:25,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:04:25,591 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:04:25,591 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:04:25,592 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:04:25,592 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:04:25,592 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 [2025-03-17 11:04:25,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:04:25,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:04:25,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:04:25,829 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:04:25,829 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:04:25,830 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2025-03-17 11:04:26,978 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6bdf145c/16f2b887b52c4b25bf5bcaf0c4f4ab6a/FLAG1155e62bd [2025-03-17 11:04:27,284 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:04:27,285 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_05-funloop_hard2.i [2025-03-17 11:04:27,297 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6bdf145c/16f2b887b52c4b25bf5bcaf0c4f4ab6a/FLAG1155e62bd [2025-03-17 11:04:27,316 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6bdf145c/16f2b887b52c4b25bf5bcaf0c4f4ab6a [2025-03-17 11:04:27,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:04:27,319 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:04:27,320 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:04:27,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:04:27,322 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:04:27,324 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:04:27" (1/1) ... [2025-03-17 11:04:27,325 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75c4aafb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:27, skipping insertion in model container [2025-03-17 11:04:27,325 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:04:27" (1/1) ... [2025-03-17 11:04:27,345 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:04:27,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:04:27,678 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:04:27,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:04:27,748 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:04:27,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:27 WrapperNode [2025-03-17 11:04:27,749 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:04:27,750 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:04:27,750 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:04:27,750 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:04:27,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:27" (1/1) ... [2025-03-17 11:04:27,763 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:27" (1/1) ... [2025-03-17 11:04:27,784 INFO L138 Inliner]: procedures = 263, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 170 [2025-03-17 11:04:27,785 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:04:27,785 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:04:27,785 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:04:27,785 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:04:27,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:27" (1/1) ... [2025-03-17 11:04:27,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:27" (1/1) ... [2025-03-17 11:04:27,793 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:27" (1/1) ... [2025-03-17 11:04:27,794 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:27" (1/1) ... [2025-03-17 11:04:27,800 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:27" (1/1) ... [2025-03-17 11:04:27,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:27" (1/1) ... [2025-03-17 11:04:27,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:27" (1/1) ... [2025-03-17 11:04:27,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:27" (1/1) ... [2025-03-17 11:04:27,805 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:04:27,806 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:04:27,806 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:04:27,806 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:04:27,807 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:27" (1/1) ... [2025-03-17 11:04:27,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:04:27,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:04:27,833 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 11:04:27,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 11:04:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-17 11:04:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-17 11:04:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-17 11:04:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-17 11:04:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 11:04:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-17 11:04:27,853 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-17 11:04:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 11:04:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:04:27,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:04:27,854 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 11:04:27,947 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:04:27,948 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:04:28,251 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 11:04:28,251 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:04:28,278 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:04:28,279 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:04:28,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:04:28 BoogieIcfgContainer [2025-03-17 11:04:28,279 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:04:28,282 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:04:28,282 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:04:28,288 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:04:28,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:04:27" (1/3) ... [2025-03-17 11:04:28,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce7101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:04:28, skipping insertion in model container [2025-03-17 11:04:28,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:27" (2/3) ... [2025-03-17 11:04:28,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce7101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:04:28, skipping insertion in model container [2025-03-17 11:04:28,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:04:28" (3/3) ... [2025-03-17 11:04:28,296 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_05-funloop_hard2.i [2025-03-17 11:04:28,309 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:04:28,310 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. [2025-03-17 11:04:28,311 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 11:04:28,400 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 11:04:28,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 182 transitions, 368 flow [2025-03-17 11:04:28,523 INFO L124 PetriNetUnfolderBase]: 3/181 cut-off events. [2025-03-17 11:04:28,527 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 11:04:28,533 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 230 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. [2025-03-17 11:04:28,534 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 182 transitions, 368 flow [2025-03-17 11:04:28,538 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 181 transitions, 365 flow [2025-03-17 11:04:28,545 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:04:28,559 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;@1051c7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:04:28,559 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-17 11:04:28,589 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 11:04:28,589 INFO L124 PetriNetUnfolderBase]: 1/115 cut-off events. [2025-03-17 11:04:28,589 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 11:04:28,590 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:28,590 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] [2025-03-17 11:04:28,590 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:04:28,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:28,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1488094149, now seen corresponding path program 1 times [2025-03-17 11:04:28,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:28,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574040492] [2025-03-17 11:04:28,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:28,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:28,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-17 11:04:28,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-17 11:04:28,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:28,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:28,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:28,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:28,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574040492] [2025-03-17 11:04:28,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574040492] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:28,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:28,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:04:28,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268552216] [2025-03-17 11:04:28,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:28,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:04:28,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:28,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:04:28,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:04:28,966 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 182 [2025-03-17 11:04:28,969 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) [2025-03-17 11:04:28,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:28,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 182 [2025-03-17 11:04:28,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:29,060 INFO L124 PetriNetUnfolderBase]: 15/321 cut-off events. [2025-03-17 11:04:29,060 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 11:04:29,062 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. [2025-03-17 11:04:29,064 INFO L140 encePairwiseOnDemand]: 179/182 looper letters, 12 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2025-03-17 11:04:29,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 182 transitions, 395 flow [2025-03-17 11:04:29,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:04:29,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:04:29,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions. [2025-03-17 11:04:29,076 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9560439560439561 [2025-03-17 11:04:29,078 INFO L175 Difference]: Start difference. First operand has 182 places, 181 transitions, 365 flow. Second operand 3 states and 522 transitions. [2025-03-17 11:04:29,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 182 transitions, 395 flow [2025-03-17 11:04:29,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 182 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 11:04:29,085 INFO L231 Difference]: Finished difference. Result has 184 places, 182 transitions, 376 flow [2025-03-17 11:04:29,086 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=184, PETRI_TRANSITIONS=182} [2025-03-17 11:04:29,091 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 2 predicate places. [2025-03-17 11:04:29,091 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 182 transitions, 376 flow [2025-03-17 11:04:29,092 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) [2025-03-17 11:04:29,092 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:29,092 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] [2025-03-17 11:04:29,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 11:04:29,093 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:04:29,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:29,094 INFO L85 PathProgramCache]: Analyzing trace with hash 120000725, now seen corresponding path program 1 times [2025-03-17 11:04:29,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:29,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231154866] [2025-03-17 11:04:29,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:29,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:29,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-17 11:04:29,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-17 11:04:29,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:29,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:29,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:29,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:29,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231154866] [2025-03-17 11:04:29,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231154866] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 11:04:29,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813322301] [2025-03-17 11:04:29,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:29,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:04:29,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:04:29,281 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:04:29,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 11:04:29,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-17 11:04:29,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-17 11:04:29,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:29,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:29,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 11:04:29,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:04:29,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 11:04:29,416 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:04:29,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813322301] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:29,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 11:04:29,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-03-17 11:04:29,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077865] [2025-03-17 11:04:29,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:29,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:04:29,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:29,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:04:29,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:04:29,430 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 182 [2025-03-17 11:04:29,431 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) [2025-03-17 11:04:29,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:29,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 182 [2025-03-17 11:04:29,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:29,510 INFO L124 PetriNetUnfolderBase]: 35/481 cut-off events. [2025-03-17 11:04:29,511 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 11:04:29,514 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 1724 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. [2025-03-17 11:04:29,516 INFO L140 encePairwiseOnDemand]: 179/182 looper letters, 16 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2025-03-17 11:04:29,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 187 transitions, 422 flow [2025-03-17 11:04:29,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:04:29,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:04:29,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2025-03-17 11:04:29,520 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9633699633699634 [2025-03-17 11:04:29,520 INFO L175 Difference]: Start difference. First operand has 184 places, 182 transitions, 376 flow. Second operand 3 states and 526 transitions. [2025-03-17 11:04:29,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 187 transitions, 422 flow [2025-03-17 11:04:29,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 187 transitions, 420 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 11:04:29,524 INFO L231 Difference]: Finished difference. Result has 186 places, 183 transitions, 386 flow [2025-03-17 11:04:29,525 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} [2025-03-17 11:04:29,525 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 4 predicate places. [2025-03-17 11:04:29,526 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 183 transitions, 386 flow [2025-03-17 11:04:29,526 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) [2025-03-17 11:04:29,527 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:29,527 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:04:29,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 11:04:29,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:04:29,732 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:04:29,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:29,733 INFO L85 PathProgramCache]: Analyzing trace with hash 706216788, now seen corresponding path program 1 times [2025-03-17 11:04:29,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:29,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461565688] [2025-03-17 11:04:29,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:29,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:29,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-17 11:04:29,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-17 11:04:29,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:29,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:29,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:29,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:29,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461565688] [2025-03-17 11:04:29,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461565688] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 11:04:29,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053847256] [2025-03-17 11:04:29,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:29,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:04:29,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:04:29,868 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:04:29,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 11:04:29,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-17 11:04:29,933 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-17 11:04:29,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:29,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:29,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 11:04:29,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:04:29,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:29,969 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:04:29,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:29,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053847256] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:04:29,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 11:04:29,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-17 11:04:29,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965379482] [2025-03-17 11:04:29,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 11:04:29,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:04:29,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:29,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:04:29,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-17 11:04:30,023 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 182 [2025-03-17 11:04:30,025 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) [2025-03-17 11:04:30,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:30,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 182 [2025-03-17 11:04:30,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:30,174 INFO L124 PetriNetUnfolderBase]: 24/489 cut-off events. [2025-03-17 11:04:30,174 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 11:04:30,175 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 1556 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. [2025-03-17 11:04:30,177 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 16 selfloop transitions, 9 changer transitions 0/191 dead transitions. [2025-03-17 11:04:30,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 191 transitions, 454 flow [2025-03-17 11:04:30,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:04:30,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:04:30,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1521 transitions. [2025-03-17 11:04:30,179 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9285714285714286 [2025-03-17 11:04:30,180 INFO L175 Difference]: Start difference. First operand has 186 places, 183 transitions, 386 flow. Second operand 9 states and 1521 transitions. [2025-03-17 11:04:30,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 191 transitions, 454 flow [2025-03-17 11:04:30,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 191 transitions, 452 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 11:04:30,185 INFO L231 Difference]: Finished difference. Result has 196 places, 189 transitions, 434 flow [2025-03-17 11:04:30,186 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} [2025-03-17 11:04:30,187 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 14 predicate places. [2025-03-17 11:04:30,187 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 189 transitions, 434 flow [2025-03-17 11:04:30,188 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) [2025-03-17 11:04:30,188 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:30,188 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:04:30,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 11:04:30,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-17 11:04:30,389 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:04:30,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:30,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1661637524, now seen corresponding path program 2 times [2025-03-17 11:04:30,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:30,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103155486] [2025-03-17 11:04:30,390 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:04:30,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:30,401 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 105 statements into 2 equivalence classes. [2025-03-17 11:04:30,410 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 105 statements. [2025-03-17 11:04:30,410 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:04:30,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:30,747 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-17 11:04:30,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:30,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103155486] [2025-03-17 11:04:30,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103155486] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:30,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:30,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:04:30,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756059835] [2025-03-17 11:04:30,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:30,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:04:30,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:30,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:04:30,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:04:30,936 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-17 11:04:30,937 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) [2025-03-17 11:04:30,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:30,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-17 11:04:30,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:31,205 INFO L124 PetriNetUnfolderBase]: 333/1545 cut-off events. [2025-03-17 11:04:31,205 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-17 11:04:31,208 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 10026 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. [2025-03-17 11:04:31,213 INFO L140 encePairwiseOnDemand]: 171/182 looper letters, 36 selfloop transitions, 22 changer transitions 0/218 dead transitions. [2025-03-17 11:04:31,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 218 transitions, 608 flow [2025-03-17 11:04:31,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:04:31,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:04:31,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 977 transitions. [2025-03-17 11:04:31,217 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8946886446886447 [2025-03-17 11:04:31,217 INFO L175 Difference]: Start difference. First operand has 196 places, 189 transitions, 434 flow. Second operand 6 states and 977 transitions. [2025-03-17 11:04:31,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 218 transitions, 608 flow [2025-03-17 11:04:31,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 218 transitions, 602 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-03-17 11:04:31,222 INFO L231 Difference]: Finished difference. Result has 205 places, 210 transitions, 578 flow [2025-03-17 11:04:31,222 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} [2025-03-17 11:04:31,223 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 23 predicate places. [2025-03-17 11:04:31,223 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 210 transitions, 578 flow [2025-03-17 11:04:31,224 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) [2025-03-17 11:04:31,224 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:31,224 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:04:31,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 11:04:31,224 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:04:31,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:31,225 INFO L85 PathProgramCache]: Analyzing trace with hash -791398651, now seen corresponding path program 1 times [2025-03-17 11:04:31,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:31,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967571685] [2025-03-17 11:04:31,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:31,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:31,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-17 11:04:31,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-17 11:04:31,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:31,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:31,370 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:31,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:31,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967571685] [2025-03-17 11:04:31,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967571685] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 11:04:31,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692920863] [2025-03-17 11:04:31,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:31,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:04:31,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:04:31,376 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:04:31,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 11:04:31,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-17 11:04:31,468 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-17 11:04:31,468 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:31,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:31,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 11:04:31,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:04:31,521 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:31,522 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:04:31,612 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:31,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692920863] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:04:31,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 11:04:31,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-03-17 11:04:31,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251550396] [2025-03-17 11:04:31,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 11:04:31,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 11:04:31,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:31,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 11:04:31,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-17 11:04:31,648 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 182 [2025-03-17 11:04:31,651 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) [2025-03-17 11:04:31,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:31,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 182 [2025-03-17 11:04:31,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:31,928 INFO L124 PetriNetUnfolderBase]: 118/1109 cut-off events. [2025-03-17 11:04:31,928 INFO L125 PetriNetUnfolderBase]: For 77/83 co-relation queries the response was YES. [2025-03-17 11:04:31,931 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 5920 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. [2025-03-17 11:04:31,933 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 20 selfloop transitions, 21 changer transitions 0/228 dead transitions. [2025-03-17 11:04:31,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 228 transitions, 748 flow [2025-03-17 11:04:31,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-17 11:04:31,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-17 11:04:31,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3531 transitions. [2025-03-17 11:04:31,939 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.923861852433281 [2025-03-17 11:04:31,939 INFO L175 Difference]: Start difference. First operand has 205 places, 210 transitions, 578 flow. Second operand 21 states and 3531 transitions. [2025-03-17 11:04:31,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 228 transitions, 748 flow [2025-03-17 11:04:31,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 228 transitions, 748 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:04:31,946 INFO L231 Difference]: Finished difference. Result has 230 places, 223 transitions, 708 flow [2025-03-17 11:04:31,946 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} [2025-03-17 11:04:31,948 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 48 predicate places. [2025-03-17 11:04:31,949 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 223 transitions, 708 flow [2025-03-17 11:04:31,950 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) [2025-03-17 11:04:31,950 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:31,951 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:04:31,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 11:04:32,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:04:32,152 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:04:32,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:32,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1564960645, now seen corresponding path program 2 times [2025-03-17 11:04:32,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:32,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701538024] [2025-03-17 11:04:32,153 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:04:32,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:32,172 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 125 statements into 2 equivalence classes. [2025-03-17 11:04:32,181 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 125 statements. [2025-03-17 11:04:32,181 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:04:32,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:32,451 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-17 11:04:32,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:32,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701538024] [2025-03-17 11:04:32,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701538024] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:32,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:32,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:04:32,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292130365] [2025-03-17 11:04:32,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:32,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:04:32,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:32,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:04:32,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:04:32,617 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-17 11:04:32,619 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) [2025-03-17 11:04:32,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:32,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-17 11:04:32,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:32,976 INFO L124 PetriNetUnfolderBase]: 505/2412 cut-off events. [2025-03-17 11:04:32,977 INFO L125 PetriNetUnfolderBase]: For 415/445 co-relation queries the response was YES. [2025-03-17 11:04:32,982 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 17741 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. [2025-03-17 11:04:32,991 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 61 selfloop transitions, 46 changer transitions 0/284 dead transitions. [2025-03-17 11:04:32,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 284 transitions, 1086 flow [2025-03-17 11:04:32,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:04:32,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:04:32,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1001 transitions. [2025-03-17 11:04:32,994 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2025-03-17 11:04:32,994 INFO L175 Difference]: Start difference. First operand has 230 places, 223 transitions, 708 flow. Second operand 6 states and 1001 transitions. [2025-03-17 11:04:32,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 284 transitions, 1086 flow [2025-03-17 11:04:32,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 284 transitions, 1062 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-03-17 11:04:33,003 INFO L231 Difference]: Finished difference. Result has 234 places, 268 transitions, 1038 flow [2025-03-17 11:04:33,003 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} [2025-03-17 11:04:33,004 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 52 predicate places. [2025-03-17 11:04:33,004 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 268 transitions, 1038 flow [2025-03-17 11:04:33,005 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) [2025-03-17 11:04:33,005 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:33,005 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:04:33,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 11:04:33,006 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:04:33,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:33,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1215913403, now seen corresponding path program 1 times [2025-03-17 11:04:33,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:33,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683502423] [2025-03-17 11:04:33,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:33,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:33,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-17 11:04:33,031 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-17 11:04:33,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:33,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:33,335 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:33,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:33,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683502423] [2025-03-17 11:04:33,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683502423] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 11:04:33,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018425394] [2025-03-17 11:04:33,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:33,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:04:33,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:04:33,341 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:04:33,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 11:04:33,401 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-17 11:04:33,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-17 11:04:33,430 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:33,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:33,431 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-17 11:04:33,434 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:04:33,500 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:33,500 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:04:33,686 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:33,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018425394] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:04:33,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 11:04:33,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-03-17 11:04:33,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929017512] [2025-03-17 11:04:33,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 11:04:33,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-17 11:04:33,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:33,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-17 11:04:33,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-03-17 11:04:33,724 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 182 [2025-03-17 11:04:33,727 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) [2025-03-17 11:04:33,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:33,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 182 [2025-03-17 11:04:33,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:34,184 INFO L124 PetriNetUnfolderBase]: 264/1738 cut-off events. [2025-03-17 11:04:34,185 INFO L125 PetriNetUnfolderBase]: For 589/618 co-relation queries the response was YES. [2025-03-17 11:04:34,190 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 11582 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. [2025-03-17 11:04:34,195 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 23 selfloop transitions, 30 changer transitions 0/285 dead transitions. [2025-03-17 11:04:34,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 285 transitions, 1266 flow [2025-03-17 11:04:34,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-17 11:04:34,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-17 11:04:34,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5036 transitions. [2025-03-17 11:04:34,203 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9223443223443224 [2025-03-17 11:04:34,204 INFO L175 Difference]: Start difference. First operand has 234 places, 268 transitions, 1038 flow. Second operand 30 states and 5036 transitions. [2025-03-17 11:04:34,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 285 transitions, 1266 flow [2025-03-17 11:04:34,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 285 transitions, 1266 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:04:34,214 INFO L231 Difference]: Finished difference. Result has 267 places, 278 transitions, 1190 flow [2025-03-17 11:04:34,215 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} [2025-03-17 11:04:34,216 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 85 predicate places. [2025-03-17 11:04:34,216 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 278 transitions, 1190 flow [2025-03-17 11:04:34,217 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) [2025-03-17 11:04:34,217 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:34,217 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:04:34,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 11:04:34,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:04:34,419 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:04:34,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:34,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1486487265, now seen corresponding path program 2 times [2025-03-17 11:04:34,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:34,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971892812] [2025-03-17 11:04:34,420 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:04:34,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:34,437 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 148 statements into 2 equivalence classes. [2025-03-17 11:04:34,444 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 98 of 148 statements. [2025-03-17 11:04:34,445 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:04:34,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:34,694 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:34,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:34,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971892812] [2025-03-17 11:04:34,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971892812] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:34,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:34,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:04:34,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227270647] [2025-03-17 11:04:34,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:34,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:04:34,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:34,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:04:34,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:04:34,795 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 182 [2025-03-17 11:04:34,796 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) [2025-03-17 11:04:34,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:34,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 182 [2025-03-17 11:04:34,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:35,281 INFO L124 PetriNetUnfolderBase]: 949/3309 cut-off events. [2025-03-17 11:04:35,282 INFO L125 PetriNetUnfolderBase]: For 2070/2165 co-relation queries the response was YES. [2025-03-17 11:04:35,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7539 conditions, 3309 events. 949/3309 cut-off events. For 2070/2165 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 23775 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. [2025-03-17 11:04:35,297 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 102 selfloop transitions, 57 changer transitions 0/333 dead transitions. [2025-03-17 11:04:35,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 333 transitions, 1752 flow [2025-03-17 11:04:35,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:04:35,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:04:35,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 943 transitions. [2025-03-17 11:04:35,299 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8635531135531136 [2025-03-17 11:04:35,300 INFO L175 Difference]: Start difference. First operand has 267 places, 278 transitions, 1190 flow. Second operand 6 states and 943 transitions. [2025-03-17 11:04:35,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 333 transitions, 1752 flow [2025-03-17 11:04:35,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 333 transitions, 1706 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-03-17 11:04:35,312 INFO L231 Difference]: Finished difference. Result has 259 places, 325 transitions, 1642 flow [2025-03-17 11:04:35,313 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} [2025-03-17 11:04:35,314 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 77 predicate places. [2025-03-17 11:04:35,315 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 325 transitions, 1642 flow [2025-03-17 11:04:35,315 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) [2025-03-17 11:04:35,315 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:35,315 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:04:35,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 11:04:35,316 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:04:35,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:35,316 INFO L85 PathProgramCache]: Analyzing trace with hash 472970467, now seen corresponding path program 1 times [2025-03-17 11:04:35,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:35,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190477401] [2025-03-17 11:04:35,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:35,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:35,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-03-17 11:04:35,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-03-17 11:04:35,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:35,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:35,709 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:35,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:35,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190477401] [2025-03-17 11:04:35,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190477401] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:35,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:35,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:04:35,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623146400] [2025-03-17 11:04:35,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:35,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:04:35,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:35,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:04:35,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:04:35,798 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 182 [2025-03-17 11:04:35,799 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) [2025-03-17 11:04:35,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:35,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 182 [2025-03-17 11:04:35,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:36,426 INFO L124 PetriNetUnfolderBase]: 1319/4555 cut-off events. [2025-03-17 11:04:36,427 INFO L125 PetriNetUnfolderBase]: For 4939/5070 co-relation queries the response was YES. [2025-03-17 11:04:36,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11634 conditions, 4555 events. 1319/4555 cut-off events. For 4939/5070 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 35720 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. [2025-03-17 11:04:36,451 INFO L140 encePairwiseOnDemand]: 159/182 looper letters, 143 selfloop transitions, 103 changer transitions 4/426 dead transitions. [2025-03-17 11:04:36,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 426 transitions, 2608 flow [2025-03-17 11:04:36,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:04:36,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:04:36,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 983 transitions. [2025-03-17 11:04:36,453 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9001831501831502 [2025-03-17 11:04:36,453 INFO L175 Difference]: Start difference. First operand has 259 places, 325 transitions, 1642 flow. Second operand 6 states and 983 transitions. [2025-03-17 11:04:36,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 426 transitions, 2608 flow [2025-03-17 11:04:36,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 426 transitions, 2544 flow, removed 32 selfloop flow, removed 0 redundant places. [2025-03-17 11:04:36,472 INFO L231 Difference]: Finished difference. Result has 269 places, 410 transitions, 2494 flow [2025-03-17 11:04:36,473 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} [2025-03-17 11:04:36,473 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 87 predicate places. [2025-03-17 11:04:36,473 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 410 transitions, 2494 flow [2025-03-17 11:04:36,474 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) [2025-03-17 11:04:36,474 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:36,474 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:04:36,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 11:04:36,474 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:04:36,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:36,475 INFO L85 PathProgramCache]: Analyzing trace with hash 437781765, now seen corresponding path program 1 times [2025-03-17 11:04:36,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:36,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109383412] [2025-03-17 11:04:36,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:36,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:36,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-17 11:04:36,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:04:36,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:36,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:36,905 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:36,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:36,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109383412] [2025-03-17 11:04:36,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109383412] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:36,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:36,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:04:36,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26788271] [2025-03-17 11:04:36,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:36,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:04:36,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:36,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:04:36,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:04:38,115 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-17 11:04:38,116 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) [2025-03-17 11:04:38,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:38,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-17 11:04:38,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:38,857 INFO L124 PetriNetUnfolderBase]: 1229/4915 cut-off events. [2025-03-17 11:04:38,857 INFO L125 PetriNetUnfolderBase]: For 6169/6308 co-relation queries the response was YES. [2025-03-17 11:04:38,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13115 conditions, 4915 events. 1229/4915 cut-off events. For 6169/6308 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 41567 event pairs, 180 based on Foata normal form. 37/4875 useless extension candidates. Maximal degree in co-relation 12837. Up to 712 conditions per place. [2025-03-17 11:04:38,896 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 73 selfloop transitions, 15 changer transitions 0/468 dead transitions. [2025-03-17 11:04:38,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 468 transitions, 2786 flow [2025-03-17 11:04:38,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:04:38,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:04:38,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1467 transitions. [2025-03-17 11:04:38,900 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8956043956043956 [2025-03-17 11:04:38,900 INFO L175 Difference]: Start difference. First operand has 269 places, 410 transitions, 2494 flow. Second operand 9 states and 1467 transitions. [2025-03-17 11:04:38,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 468 transitions, 2786 flow [2025-03-17 11:04:38,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 468 transitions, 2672 flow, removed 57 selfloop flow, removed 0 redundant places. [2025-03-17 11:04:38,949 INFO L231 Difference]: Finished difference. Result has 284 places, 424 transitions, 2492 flow [2025-03-17 11:04:38,952 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} [2025-03-17 11:04:38,953 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 102 predicate places. [2025-03-17 11:04:38,953 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 424 transitions, 2492 flow [2025-03-17 11:04:38,954 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) [2025-03-17 11:04:38,954 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:38,954 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:04:38,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 11:04:38,954 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:04:38,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:38,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1398517849, now seen corresponding path program 2 times [2025-03-17 11:04:38,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:38,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972825256] [2025-03-17 11:04:38,955 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:04:38,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:38,972 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-17 11:04:38,984 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-17 11:04:38,989 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:04:38,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:39,310 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:39,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:39,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972825256] [2025-03-17 11:04:39,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972825256] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:39,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:39,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:04:39,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115216188] [2025-03-17 11:04:39,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:39,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:04:39,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:39,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:04:39,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:04:40,359 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-17 11:04:40,360 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) [2025-03-17 11:04:40,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:40,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-17 11:04:40,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:41,877 INFO L124 PetriNetUnfolderBase]: 2479/9316 cut-off events. [2025-03-17 11:04:41,877 INFO L125 PetriNetUnfolderBase]: For 12674/12974 co-relation queries the response was YES. [2025-03-17 11:04:41,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26480 conditions, 9316 events. 2479/9316 cut-off events. For 12674/12974 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 88705 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. [2025-03-17 11:04:41,929 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 119 selfloop transitions, 20 changer transitions 4/523 dead transitions. [2025-03-17 11:04:41,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 523 transitions, 3210 flow [2025-03-17 11:04:41,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:04:41,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:04:41,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1475 transitions. [2025-03-17 11:04:41,933 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9004884004884005 [2025-03-17 11:04:41,933 INFO L175 Difference]: Start difference. First operand has 284 places, 424 transitions, 2492 flow. Second operand 9 states and 1475 transitions. [2025-03-17 11:04:41,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 523 transitions, 3210 flow [2025-03-17 11:04:41,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 523 transitions, 3200 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 11:04:41,992 INFO L231 Difference]: Finished difference. Result has 298 places, 441 transitions, 2671 flow [2025-03-17 11:04:41,993 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} [2025-03-17 11:04:41,994 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 116 predicate places. [2025-03-17 11:04:41,994 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 441 transitions, 2671 flow [2025-03-17 11:04:41,994 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) [2025-03-17 11:04:41,994 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:41,994 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:04:41,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 11:04:41,995 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:04:41,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:41,995 INFO L85 PathProgramCache]: Analyzing trace with hash -831907079, now seen corresponding path program 3 times [2025-03-17 11:04:41,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:41,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763319085] [2025-03-17 11:04:41,996 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 11:04:41,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:42,008 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-17 11:04:42,018 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-17 11:04:42,018 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 11:04:42,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:42,259 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:42,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:42,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763319085] [2025-03-17 11:04:42,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763319085] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:42,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:42,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:04:42,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324819717] [2025-03-17 11:04:42,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:42,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:04:42,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:42,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:04:42,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:04:43,383 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-17 11:04:43,384 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) [2025-03-17 11:04:43,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:43,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-17 11:04:43,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:44,775 INFO L124 PetriNetUnfolderBase]: 2778/10527 cut-off events. [2025-03-17 11:04:44,775 INFO L125 PetriNetUnfolderBase]: For 16432/16884 co-relation queries the response was YES. [2025-03-17 11:04:44,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31099 conditions, 10527 events. 2778/10527 cut-off events. For 16432/16884 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 101869 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. [2025-03-17 11:04:44,939 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 123 selfloop transitions, 22 changer transitions 0/525 dead transitions. [2025-03-17 11:04:44,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 525 transitions, 3459 flow [2025-03-17 11:04:44,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:04:44,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:04:44,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1472 transitions. [2025-03-17 11:04:44,941 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8986568986568987 [2025-03-17 11:04:44,941 INFO L175 Difference]: Start difference. First operand has 298 places, 441 transitions, 2671 flow. Second operand 9 states and 1472 transitions. [2025-03-17 11:04:44,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 525 transitions, 3459 flow [2025-03-17 11:04:45,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 525 transitions, 3421 flow, removed 19 selfloop flow, removed 0 redundant places. [2025-03-17 11:04:45,011 INFO L231 Difference]: Finished difference. Result has 311 places, 453 transitions, 2840 flow [2025-03-17 11:04:45,012 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} [2025-03-17 11:04:45,013 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 129 predicate places. [2025-03-17 11:04:45,013 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 453 transitions, 2840 flow [2025-03-17 11:04:45,013 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) [2025-03-17 11:04:45,014 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:45,014 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:04:45,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 11:04:45,014 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:04:45,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:45,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1532316581, now seen corresponding path program 4 times [2025-03-17 11:04:45,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:45,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240596323] [2025-03-17 11:04:45,015 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 11:04:45,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:45,032 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-17 11:04:45,065 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:04:45,065 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 11:04:45,065 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:45,794 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:45,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:45,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240596323] [2025-03-17 11:04:45,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240596323] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:45,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:45,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 11:04:45,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776547805] [2025-03-17 11:04:45,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:45,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:04:45,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:45,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:04:45,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-03-17 11:04:47,002 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-17 11:04:47,003 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) [2025-03-17 11:04:47,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:47,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-17 11:04:47,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:48,776 INFO L124 PetriNetUnfolderBase]: 3073/11395 cut-off events. [2025-03-17 11:04:48,776 INFO L125 PetriNetUnfolderBase]: For 20334/20790 co-relation queries the response was YES. [2025-03-17 11:04:48,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34824 conditions, 11395 events. 3073/11395 cut-off events. For 20334/20790 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 111168 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. [2025-03-17 11:04:48,840 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 137 selfloop transitions, 28 changer transitions 4/549 dead transitions. [2025-03-17 11:04:48,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 549 transitions, 3825 flow [2025-03-17 11:04:48,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:04:48,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 11:04:48,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1631 transitions. [2025-03-17 11:04:48,843 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8961538461538462 [2025-03-17 11:04:48,843 INFO L175 Difference]: Start difference. First operand has 311 places, 453 transitions, 2840 flow. Second operand 10 states and 1631 transitions. [2025-03-17 11:04:48,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 549 transitions, 3825 flow [2025-03-17 11:04:48,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 549 transitions, 3746 flow, removed 7 selfloop flow, removed 3 redundant places. [2025-03-17 11:04:48,931 INFO L231 Difference]: Finished difference. Result has 322 places, 465 transitions, 3021 flow [2025-03-17 11:04:48,931 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} [2025-03-17 11:04:48,932 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 140 predicate places. [2025-03-17 11:04:48,932 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 465 transitions, 3021 flow [2025-03-17 11:04:48,933 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) [2025-03-17 11:04:48,934 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:48,934 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:04:48,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 11:04:48,934 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)] === [2025-03-17 11:04:48,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:48,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1651051123, now seen corresponding path program 5 times [2025-03-17 11:04:48,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:48,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978133812] [2025-03-17 11:04:48,936 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 11:04:48,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:48,949 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-17 11:04:48,970 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:04:48,970 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-17 11:04:48,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:49,432 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-03-17 11:04:49,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:49,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978133812] [2025-03-17 11:04:49,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978133812] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 11:04:49,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646869601] [2025-03-17 11:04:49,433 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 11:04:49,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:04:49,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:04:49,435 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:04:49,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 11:04:49,502 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-17 11:04:49,558 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:04:49,559 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-17 11:04:49,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:49,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-17 11:04:49,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:04:49,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-03-17 11:04:49,823 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:49,823 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:04:49,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646869601] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:49,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 11:04:49,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-03-17 11:04:49,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179185337] [2025-03-17 11:04:49,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:49,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:04:49,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:49,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:04:49,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2025-03-17 11:04:50,768 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-17 11:04:50,769 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) [2025-03-17 11:04:50,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:50,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-17 11:04:50,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:52,856 INFO L124 PetriNetUnfolderBase]: 3406/12720 cut-off events. [2025-03-17 11:04:52,856 INFO L125 PetriNetUnfolderBase]: For 25378/25972 co-relation queries the response was YES. [2025-03-17 11:04:52,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39483 conditions, 12720 events. 3406/12720 cut-off events. For 25378/25972 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 126970 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. [2025-03-17 11:04:52,966 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 136 selfloop transitions, 30 changer transitions 0/546 dead transitions. [2025-03-17 11:04:52,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 546 transitions, 4004 flow [2025-03-17 11:04:52,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:04:52,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 11:04:52,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1628 transitions. [2025-03-17 11:04:52,970 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8945054945054945 [2025-03-17 11:04:52,970 INFO L175 Difference]: Start difference. First operand has 322 places, 465 transitions, 3021 flow. Second operand 10 states and 1628 transitions. [2025-03-17 11:04:52,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 546 transitions, 4004 flow [2025-03-17 11:04:53,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 546 transitions, 3911 flow, removed 10 selfloop flow, removed 4 redundant places. [2025-03-17 11:04:53,083 INFO L231 Difference]: Finished difference. Result has 333 places, 480 transitions, 3259 flow [2025-03-17 11:04:53,083 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} [2025-03-17 11:04:53,084 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 151 predicate places. [2025-03-17 11:04:53,084 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 480 transitions, 3259 flow [2025-03-17 11:04:53,084 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) [2025-03-17 11:04:53,084 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:53,084 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:04:53,091 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 11:04:53,289 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 [2025-03-17 11:04:53,289 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:04:53,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:53,290 INFO L85 PathProgramCache]: Analyzing trace with hash 612747393, now seen corresponding path program 6 times [2025-03-17 11:04:53,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:53,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533408364] [2025-03-17 11:04:53,290 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 11:04:53,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:53,304 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-03-17 11:04:53,314 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-17 11:04:53,315 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-17 11:04:53,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:53,660 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:53,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:53,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533408364] [2025-03-17 11:04:53,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533408364] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:53,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:53,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:04:53,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735549935] [2025-03-17 11:04:53,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:53,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:04:53,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:53,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:04:53,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:04:54,600 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-17 11:04:54,601 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) [2025-03-17 11:04:54,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:54,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-17 11:04:54,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:56,977 INFO L124 PetriNetUnfolderBase]: 3725/13728 cut-off events. [2025-03-17 11:04:56,977 INFO L125 PetriNetUnfolderBase]: For 31646/32260 co-relation queries the response was YES. [2025-03-17 11:04:57,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43944 conditions, 13728 events. 3725/13728 cut-off events. For 31646/32260 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 138954 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. [2025-03-17 11:04:57,064 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 154 selfloop transitions, 34 changer transitions 2/570 dead transitions. [2025-03-17 11:04:57,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 570 transitions, 4410 flow [2025-03-17 11:04:57,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:04:57,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:04:57,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1479 transitions. [2025-03-17 11:04:57,065 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9029304029304029 [2025-03-17 11:04:57,065 INFO L175 Difference]: Start difference. First operand has 333 places, 480 transitions, 3259 flow. Second operand 9 states and 1479 transitions. [2025-03-17 11:04:57,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 570 transitions, 4410 flow [2025-03-17 11:04:57,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 570 transitions, 4312 flow, removed 27 selfloop flow, removed 3 redundant places. [2025-03-17 11:04:57,183 INFO L231 Difference]: Finished difference. Result has 344 places, 495 transitions, 3504 flow [2025-03-17 11:04:57,184 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} [2025-03-17 11:04:57,184 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 162 predicate places. [2025-03-17 11:04:57,184 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 495 transitions, 3504 flow [2025-03-17 11:04:57,185 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) [2025-03-17 11:04:57,185 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:57,185 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:04:57,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-17 11:04:57,185 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:04:57,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:57,186 INFO L85 PathProgramCache]: Analyzing trace with hash -2003261937, now seen corresponding path program 7 times [2025-03-17 11:04:57,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:57,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989746134] [2025-03-17 11:04:57,186 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 11:04:57,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:57,195 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-17 11:04:57,203 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:04:57,203 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:57,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:57,411 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:57,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:57,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989746134] [2025-03-17 11:04:57,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989746134] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:57,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:57,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:04:57,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820405065] [2025-03-17 11:04:57,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:57,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:04:57,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:57,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:04:57,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:04:58,154 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-17 11:04:58,155 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) [2025-03-17 11:04:58,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:58,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-17 11:04:58,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:00,350 INFO L124 PetriNetUnfolderBase]: 4068/15087 cut-off events. [2025-03-17 11:05:00,350 INFO L125 PetriNetUnfolderBase]: For 40062/40723 co-relation queries the response was YES. [2025-03-17 11:05:00,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49325 conditions, 15087 events. 4068/15087 cut-off events. For 40062/40723 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 155876 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. [2025-03-17 11:05:00,536 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 150 selfloop transitions, 36 changer transitions 0/566 dead transitions. [2025-03-17 11:05:00,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 566 transitions, 4606 flow [2025-03-17 11:05:00,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:05:00,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:05:00,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1477 transitions. [2025-03-17 11:05:00,541 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9017094017094017 [2025-03-17 11:05:00,541 INFO L175 Difference]: Start difference. First operand has 344 places, 495 transitions, 3504 flow. Second operand 9 states and 1477 transitions. [2025-03-17 11:05:00,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 566 transitions, 4606 flow [2025-03-17 11:05:00,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 566 transitions, 4506 flow, removed 26 selfloop flow, removed 2 redundant places. [2025-03-17 11:05:00,709 INFO L231 Difference]: Finished difference. Result has 357 places, 514 transitions, 3855 flow [2025-03-17 11:05:00,710 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} [2025-03-17 11:05:00,710 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 175 predicate places. [2025-03-17 11:05:00,710 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 514 transitions, 3855 flow [2025-03-17 11:05:00,711 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) [2025-03-17 11:05:00,711 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:00,711 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:05:00,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-17 11:05:00,711 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:05:00,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:00,712 INFO L85 PathProgramCache]: Analyzing trace with hash 827447523, now seen corresponding path program 8 times [2025-03-17 11:05:00,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:00,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928980303] [2025-03-17 11:05:00,712 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:05:00,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:00,722 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-17 11:05:00,751 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-17 11:05:00,751 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:05:00,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:00,962 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:05:00,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:00,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928980303] [2025-03-17 11:05:00,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928980303] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:00,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:00,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:05:00,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833718873] [2025-03-17 11:05:00,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:00,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:05:00,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:00,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:05:00,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:05:01,532 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-17 11:05:01,533 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) [2025-03-17 11:05:01,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:01,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-17 11:05:01,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:04,928 INFO L124 PetriNetUnfolderBase]: 4671/16951 cut-off events. [2025-03-17 11:05:04,928 INFO L125 PetriNetUnfolderBase]: For 51154/52038 co-relation queries the response was YES. [2025-03-17 11:05:05,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57058 conditions, 16951 events. 4671/16951 cut-off events. For 51154/52038 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 179891 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. [2025-03-17 11:05:05,077 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 173 selfloop transitions, 45 changer transitions 0/598 dead transitions. [2025-03-17 11:05:05,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 598 transitions, 5172 flow [2025-03-17 11:05:05,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:05:05,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:05:05,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1481 transitions. [2025-03-17 11:05:05,079 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9041514041514042 [2025-03-17 11:05:05,079 INFO L175 Difference]: Start difference. First operand has 357 places, 514 transitions, 3855 flow. Second operand 9 states and 1481 transitions. [2025-03-17 11:05:05,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 598 transitions, 5172 flow [2025-03-17 11:05:05,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 598 transitions, 5068 flow, removed 52 selfloop flow, removed 0 redundant places. [2025-03-17 11:05:05,293 INFO L231 Difference]: Finished difference. Result has 372 places, 532 transitions, 4209 flow [2025-03-17 11:05:05,293 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} [2025-03-17 11:05:05,293 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 190 predicate places. [2025-03-17 11:05:05,293 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 532 transitions, 4209 flow [2025-03-17 11:05:05,294 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) [2025-03-17 11:05:05,294 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:05,294 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:05:05,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-17 11:05:05,294 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:05:05,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:05,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1766678525, now seen corresponding path program 9 times [2025-03-17 11:05:05,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:05,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214972599] [2025-03-17 11:05:05,295 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 11:05:05,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:05,307 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-17 11:05:05,311 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-17 11:05:05,311 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 11:05:05,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:05,443 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:05:05,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:05,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214972599] [2025-03-17 11:05:05,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214972599] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:05,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:05,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:05:05,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254011743] [2025-03-17 11:05:05,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:05,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:05:05,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:05,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:05:05,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:05:06,236 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-17 11:05:06,237 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) [2025-03-17 11:05:06,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:06,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-17 11:05:06,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:08,943 INFO L124 PetriNetUnfolderBase]: 4663/17065 cut-off events. [2025-03-17 11:05:08,943 INFO L125 PetriNetUnfolderBase]: For 56849/57751 co-relation queries the response was YES. [2025-03-17 11:05:09,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58128 conditions, 17065 events. 4663/17065 cut-off events. For 56849/57751 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 181771 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. [2025-03-17 11:05:09,362 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 185 selfloop transitions, 58 changer transitions 0/623 dead transitions. [2025-03-17 11:05:09,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 623 transitions, 5535 flow [2025-03-17 11:05:09,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:05:09,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:05:09,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1470 transitions. [2025-03-17 11:05:09,366 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8974358974358975 [2025-03-17 11:05:09,366 INFO L175 Difference]: Start difference. First operand has 372 places, 532 transitions, 4209 flow. Second operand 9 states and 1470 transitions. [2025-03-17 11:05:09,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 623 transitions, 5535 flow [2025-03-17 11:05:09,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 623 transitions, 5447 flow, removed 44 selfloop flow, removed 0 redundant places. [2025-03-17 11:05:09,601 INFO L231 Difference]: Finished difference. Result has 384 places, 544 transitions, 4449 flow [2025-03-17 11:05:09,602 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} [2025-03-17 11:05:09,602 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 202 predicate places. [2025-03-17 11:05:09,602 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 544 transitions, 4449 flow [2025-03-17 11:05:09,603 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) [2025-03-17 11:05:09,603 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:09,603 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:05:09,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-17 11:05:09,603 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:05:09,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:09,604 INFO L85 PathProgramCache]: Analyzing trace with hash 701480627, now seen corresponding path program 10 times [2025-03-17 11:05:09,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:09,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404981573] [2025-03-17 11:05:09,604 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 11:05:09,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:09,613 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-17 11:05:09,622 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:05:09,622 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 11:05:09,622 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:09,963 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:05:09,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:09,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404981573] [2025-03-17 11:05:09,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404981573] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:09,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:09,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 11:05:09,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076176353] [2025-03-17 11:05:09,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:09,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:05:09,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:09,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:05:09,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-17 11:05:10,813 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-17 11:05:10,815 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) [2025-03-17 11:05:10,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:10,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-17 11:05:10,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:14,077 INFO L124 PetriNetUnfolderBase]: 4388/16276 cut-off events. [2025-03-17 11:05:14,077 INFO L125 PetriNetUnfolderBase]: For 58784/59687 co-relation queries the response was YES. [2025-03-17 11:05:14,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56085 conditions, 16276 events. 4388/16276 cut-off events. For 58784/59687 co-relation queries the response was YES. Maximal size of possible extension queue 479. Compared 171676 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. [2025-03-17 11:05:14,187 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 185 selfloop transitions, 55 changer transitions 0/620 dead transitions. [2025-03-17 11:05:14,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 620 transitions, 5663 flow [2025-03-17 11:05:14,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:05:14,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 11:05:14,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1621 transitions. [2025-03-17 11:05:14,189 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8906593406593407 [2025-03-17 11:05:14,189 INFO L175 Difference]: Start difference. First operand has 384 places, 544 transitions, 4449 flow. Second operand 10 states and 1621 transitions. [2025-03-17 11:05:14,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 620 transitions, 5663 flow [2025-03-17 11:05:14,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 620 transitions, 5481 flow, removed 52 selfloop flow, removed 4 redundant places. [2025-03-17 11:05:14,398 INFO L231 Difference]: Finished difference. Result has 392 places, 547 transitions, 4483 flow [2025-03-17 11:05:14,399 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} [2025-03-17 11:05:14,399 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 210 predicate places. [2025-03-17 11:05:14,399 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 547 transitions, 4483 flow [2025-03-17 11:05:14,399 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) [2025-03-17 11:05:14,399 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:14,399 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:05:14,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-17 11:05:14,400 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:05:14,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:14,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1391794329, now seen corresponding path program 11 times [2025-03-17 11:05:14,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:14,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057124645] [2025-03-17 11:05:14,401 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 11:05:14,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:14,409 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-17 11:05:14,414 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:05:14,415 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-17 11:05:14,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:14,852 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-03-17 11:05:14,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:14,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057124645] [2025-03-17 11:05:14,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057124645] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 11:05:14,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164572264] [2025-03-17 11:05:14,853 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 11:05:14,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:05:14,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:05:14,855 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:05:14,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 11:05:14,923 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-03-17 11:05:14,969 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:05:14,969 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-17 11:05:14,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:14,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-03-17 11:05:14,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:05:15,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-03-17 11:05:15,201 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:05:15,202 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:05:15,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164572264] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:15,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 11:05:15,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-03-17 11:05:15,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322378135] [2025-03-17 11:05:15,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:15,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:05:15,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:15,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:05:15,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2025-03-17 11:05:15,886 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-17 11:05:15,887 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) [2025-03-17 11:05:15,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:15,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-17 11:05:15,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:18,498 INFO L124 PetriNetUnfolderBase]: 4390/16303 cut-off events. [2025-03-17 11:05:18,498 INFO L125 PetriNetUnfolderBase]: For 56526/57306 co-relation queries the response was YES. [2025-03-17 11:05:18,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56006 conditions, 16303 events. 4390/16303 cut-off events. For 56526/57306 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 171898 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. [2025-03-17 11:05:18,638 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 179 selfloop transitions, 61 changer transitions 0/620 dead transitions. [2025-03-17 11:05:18,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 620 transitions, 5647 flow [2025-03-17 11:05:18,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:05:18,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 11:05:18,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1624 transitions. [2025-03-17 11:05:18,640 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8923076923076924 [2025-03-17 11:05:18,640 INFO L175 Difference]: Start difference. First operand has 392 places, 547 transitions, 4483 flow. Second operand 10 states and 1624 transitions. [2025-03-17 11:05:18,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 620 transitions, 5647 flow [2025-03-17 11:05:18,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 620 transitions, 5529 flow, removed 5 selfloop flow, removed 6 redundant places. [2025-03-17 11:05:18,863 INFO L231 Difference]: Finished difference. Result has 400 places, 558 transitions, 4735 flow [2025-03-17 11:05:18,864 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} [2025-03-17 11:05:18,864 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 218 predicate places. [2025-03-17 11:05:18,864 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 558 transitions, 4735 flow [2025-03-17 11:05:18,864 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) [2025-03-17 11:05:18,864 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:18,864 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:05:18,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 11:05:19,065 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 [2025-03-17 11:05:19,065 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:05:19,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:19,066 INFO L85 PathProgramCache]: Analyzing trace with hash -899460179, now seen corresponding path program 12 times [2025-03-17 11:05:19,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:19,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680460657] [2025-03-17 11:05:19,066 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 11:05:19,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:19,075 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-03-17 11:05:19,079 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-17 11:05:19,081 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-17 11:05:19,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:19,211 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:05:19,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:19,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680460657] [2025-03-17 11:05:19,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680460657] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:19,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:19,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:05:19,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875289578] [2025-03-17 11:05:19,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:19,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:05:19,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:19,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:05:19,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:05:20,089 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-17 11:05:20,090 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) [2025-03-17 11:05:20,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:20,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-17 11:05:20,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:22,946 INFO L124 PetriNetUnfolderBase]: 4679/17288 cut-off events. [2025-03-17 11:05:22,947 INFO L125 PetriNetUnfolderBase]: For 63812/64634 co-relation queries the response was YES. [2025-03-17 11:05:23,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59966 conditions, 17288 events. 4679/17288 cut-off events. For 63812/64634 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 184670 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. [2025-03-17 11:05:23,365 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 203 selfloop transitions, 49 changer transitions 0/632 dead transitions. [2025-03-17 11:05:23,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 632 transitions, 6071 flow [2025-03-17 11:05:23,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:05:23,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:05:23,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1479 transitions. [2025-03-17 11:05:23,367 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9029304029304029 [2025-03-17 11:05:23,367 INFO L175 Difference]: Start difference. First operand has 400 places, 558 transitions, 4735 flow. Second operand 9 states and 1479 transitions. [2025-03-17 11:05:23,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 632 transitions, 6071 flow [2025-03-17 11:05:23,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 632 transitions, 5865 flow, removed 73 selfloop flow, removed 4 redundant places. [2025-03-17 11:05:23,666 INFO L231 Difference]: Finished difference. Result has 408 places, 568 transitions, 4915 flow [2025-03-17 11:05:23,666 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} [2025-03-17 11:05:23,666 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 226 predicate places. [2025-03-17 11:05:23,670 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 568 transitions, 4915 flow [2025-03-17 11:05:23,671 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) [2025-03-17 11:05:23,671 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:23,671 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:05:23,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-17 11:05:23,671 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:05:23,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:23,672 INFO L85 PathProgramCache]: Analyzing trace with hash 809050863, now seen corresponding path program 13 times [2025-03-17 11:05:23,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:23,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224187464] [2025-03-17 11:05:23,672 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 11:05:23,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:23,688 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-17 11:05:23,697 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:05:23,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:05:23,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:23,957 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:05:23,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:23,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224187464] [2025-03-17 11:05:23,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224187464] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:23,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:23,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:05:23,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072146176] [2025-03-17 11:05:23,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:23,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:05:23,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:23,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:05:23,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:05:24,634 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-17 11:05:24,636 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) [2025-03-17 11:05:24,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:24,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-17 11:05:24,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:27,907 INFO L124 PetriNetUnfolderBase]: 4685/17399 cut-off events. [2025-03-17 11:05:27,907 INFO L125 PetriNetUnfolderBase]: For 62995/63828 co-relation queries the response was YES. [2025-03-17 11:05:28,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60279 conditions, 17399 events. 4685/17399 cut-off events. For 62995/63828 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 186544 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. [2025-03-17 11:05:28,070 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 192 selfloop transitions, 66 changer transitions 0/638 dead transitions. [2025-03-17 11:05:28,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 638 transitions, 6128 flow [2025-03-17 11:05:28,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:05:28,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:05:28,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1473 transitions. [2025-03-17 11:05:28,071 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8992673992673993 [2025-03-17 11:05:28,072 INFO L175 Difference]: Start difference. First operand has 408 places, 568 transitions, 4915 flow. Second operand 9 states and 1473 transitions. [2025-03-17 11:05:28,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 638 transitions, 6128 flow [2025-03-17 11:05:28,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 638 transitions, 6031 flow, removed 9 selfloop flow, removed 4 redundant places. [2025-03-17 11:05:28,341 INFO L231 Difference]: Finished difference. Result has 415 places, 577 transitions, 5143 flow [2025-03-17 11:05:28,342 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} [2025-03-17 11:05:28,342 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 233 predicate places. [2025-03-17 11:05:28,342 INFO L471 AbstractCegarLoop]: Abstraction has has 415 places, 577 transitions, 5143 flow [2025-03-17 11:05:28,343 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) [2025-03-17 11:05:28,343 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:28,343 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:05:28,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-17 11:05:28,343 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-17 11:05:28,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:28,345 INFO L85 PathProgramCache]: Analyzing trace with hash -858546925, now seen corresponding path program 14 times [2025-03-17 11:05:28,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:28,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880119496] [2025-03-17 11:05:28,345 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:05:28,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:28,355 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-03-17 11:05:28,361 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-17 11:05:28,361 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:05:28,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:28,653 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:05:28,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:28,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880119496] [2025-03-17 11:05:28,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880119496] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:28,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:28,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:05:28,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495517213] [2025-03-17 11:05:28,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:28,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:05:28,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:28,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:05:28,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:05:29,207 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-17 11:05:29,208 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) [2025-03-17 11:05:29,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:29,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-17 11:05:29,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:32,445 INFO L124 PetriNetUnfolderBase]: 4684/17407 cut-off events. [2025-03-17 11:05:32,445 INFO L125 PetriNetUnfolderBase]: For 64399/65296 co-relation queries the response was YES. [2025-03-17 11:05:32,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60504 conditions, 17407 events. 4684/17407 cut-off events. For 64399/65296 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 186611 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. [2025-03-17 11:05:32,623 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 202 selfloop transitions, 62 changer transitions 0/644 dead transitions. [2025-03-17 11:05:32,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 644 transitions, 6353 flow [2025-03-17 11:05:32,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:05:32,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:05:32,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1474 transitions. [2025-03-17 11:05:32,625 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8998778998778999 [2025-03-17 11:05:32,625 INFO L175 Difference]: Start difference. First operand has 415 places, 577 transitions, 5143 flow. Second operand 9 states and 1474 transitions. [2025-03-17 11:05:32,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 644 transitions, 6353 flow [2025-03-17 11:05:32,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 644 transitions, 6221 flow, removed 11 selfloop flow, removed 5 redundant places. [2025-03-17 11:05:32,930 INFO L231 Difference]: Finished difference. Result has 422 places, 585 transitions, 5341 flow [2025-03-17 11:05:32,931 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} [2025-03-17 11:05:32,931 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 240 predicate places. [2025-03-17 11:05:32,931 INFO L471 AbstractCegarLoop]: Abstraction has has 422 places, 585 transitions, 5341 flow [2025-03-17 11:05:32,931 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) [2025-03-17 11:05:32,931 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:32,932 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:05:32,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-17 11:05:32,932 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)] === [2025-03-17 11:05:32,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:32,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1398538885, now seen corresponding path program 15 times [2025-03-17 11:05:32,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:32,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217079075] [2025-03-17 11:05:32,933 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 11:05:32,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:32,944 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-03-17 11:05:32,949 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-03-17 11:05:32,949 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 11:05:32,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:33,144 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:05:33,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:33,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217079075] [2025-03-17 11:05:33,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217079075] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:33,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:33,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:05:33,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418105074] [2025-03-17 11:05:33,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:33,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 11:05:33,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:33,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 11:05:33,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:05:33,754 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 182 [2025-03-17 11:05:33,755 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) [2025-03-17 11:05:33,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:33,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 182 [2025-03-17 11:05:33,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:36,758 INFO L124 PetriNetUnfolderBase]: 4411/16574 cut-off events. [2025-03-17 11:05:36,759 INFO L125 PetriNetUnfolderBase]: For 61631/62432 co-relation queries the response was YES. [2025-03-17 11:05:36,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57539 conditions, 16574 events. 4411/16574 cut-off events. For 61631/62432 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 175929 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. [2025-03-17 11:05:36,977 INFO L140 encePairwiseOnDemand]: 166/182 looper letters, 198 selfloop transitions, 64 changer transitions 0/642 dead transitions. [2025-03-17 11:05:36,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 642 transitions, 6405 flow [2025-03-17 11:05:36,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:05:36,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:05:36,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1476 transitions. [2025-03-17 11:05:36,978 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9010989010989011 [2025-03-17 11:05:36,978 INFO L175 Difference]: Start difference. First operand has 422 places, 585 transitions, 5341 flow. Second operand 9 states and 1476 transitions. [2025-03-17 11:05:36,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 642 transitions, 6405 flow [2025-03-17 11:05:37,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 642 transitions, 6289 flow, removed 18 selfloop flow, removed 4 redundant places. [2025-03-17 11:05:37,257 INFO L231 Difference]: Finished difference. Result has 429 places, 592 transitions, 5531 flow [2025-03-17 11:05:37,257 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} [2025-03-17 11:05:37,258 INFO L279 CegarLoopForPetriNet]: 182 programPoint places, 247 predicate places. [2025-03-17 11:05:37,258 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 592 transitions, 5531 flow [2025-03-17 11:05:37,259 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) [2025-03-17 11:05:37,259 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:37,259 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:05:37,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-17 11:05:37,259 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)] === [2025-03-17 11:05:37,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:37,261 INFO L85 PathProgramCache]: Analyzing trace with hash 783929507, now seen corresponding path program 16 times [2025-03-17 11:05:37,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:37,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053020928] [2025-03-17 11:05:37,261 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 11:05:37,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:37,270 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-17 11:05:37,279 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 11:05:37,279 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 11:05:37,279 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:37,851 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:05:37,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:37,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053020928] [2025-03-17 11:05:37,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053020928] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:37,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:37,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-17 11:05:37,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385350309] [2025-03-17 11:05:37,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:37,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-17 11:05:37,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:37,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-17 11:05:37,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2025-03-17 11:05:38,932 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 182 [2025-03-17 11:05:38,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 592 transitions, 5531 flow. Second operand has 15 states, 15 states have (on average 135.46666666666667) internal successors, (2032), 15 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:05:38,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:38,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 182 [2025-03-17 11:05:38,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand