./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 a7843ed292ba7ad810f8623eae57d1bf23212a957c35d700b564dc03a7df5581 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:21:00,885 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:21:00,932 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:21:00,935 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:21:00,936 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:21:00,949 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:21:00,949 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:21:00,950 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:21:00,950 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:21:00,950 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:21:00,950 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:21:00,950 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:21:00,950 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:21:00,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:21:00,951 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:21:00,951 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:21:00,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:21:00,951 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:21:00,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:21:00,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:21:00,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:21:00,951 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:21:00,951 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:21:00,951 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:21:00,952 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:21:00,952 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:21:00,952 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:21:00,952 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:21:00,952 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:21:00,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:21:00,952 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:21:00,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:21:00,952 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:21:00,952 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:21:00,952 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:21:00,952 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:21:00,952 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:21:00,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:21:00,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:21:00,952 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:21:00,952 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:21:00,953 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:21:00,953 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-jdk21/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 -> a7843ed292ba7ad810f8623eae57d1bf23212a957c35d700b564dc03a7df5581 [2025-02-06 09:21:01,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:21:01,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:21:01,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:21:01,151 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:21:01,151 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:21:01,152 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2025-02-06 09:21:02,306 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b05d4e84/bdd712e9b0474961a40c1d7d4ed6e2c4/FLAG986c6fb22 [2025-02-06 09:21:02,631 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:21:02,632 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2025-02-06 09:21:02,652 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b05d4e84/bdd712e9b0474961a40c1d7d4ed6e2c4/FLAG986c6fb22 [2025-02-06 09:21:02,675 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b05d4e84/bdd712e9b0474961a40c1d7d4ed6e2c4 [2025-02-06 09:21:02,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:21:02,679 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:21:02,681 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:21:02,681 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:21:02,683 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:21:02,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:21:02" (1/1) ... [2025-02-06 09:21:02,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cd58d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:21:02, skipping insertion in model container [2025-02-06 09:21:02,685 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:21:02" (1/1) ... [2025-02-06 09:21:02,718 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:21:02,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:21:02,918 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:21:02,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:21:02,996 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:21:02,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:21:02 WrapperNode [2025-02-06 09:21:02,997 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:21:02,998 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:21:02,998 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:21:02,999 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:21:03,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:21:02" (1/1) ... [2025-02-06 09:21:03,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:21:02" (1/1) ... [2025-02-06 09:21:03,025 INFO L138 Inliner]: procedures = 186, calls = 12, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 94 [2025-02-06 09:21:03,026 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:21:03,026 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:21:03,026 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:21:03,026 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:21:03,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:21:02" (1/1) ... [2025-02-06 09:21:03,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:21:02" (1/1) ... [2025-02-06 09:21:03,034 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:21:02" (1/1) ... [2025-02-06 09:21:03,034 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:21:02" (1/1) ... [2025-02-06 09:21:03,039 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:21:02" (1/1) ... [2025-02-06 09:21:03,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:21:02" (1/1) ... [2025-02-06 09:21:03,041 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:21:02" (1/1) ... [2025-02-06 09:21:03,041 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:21:02" (1/1) ... [2025-02-06 09:21:03,043 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:21:03,043 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:21:03,043 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:21:03,043 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:21:03,044 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:21:02" (1/1) ... [2025-02-06 09:21:03,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:21:03,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:21:03,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:21:03,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:21:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:21:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:21:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 09:21:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 09:21:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-06 09:21:03,100 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-06 09:21:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 09:21:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:21:03,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:21:03,102 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:21:03,187 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:21:03,190 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:21:03,418 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:21:03,419 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:21:03,446 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:21:03,446 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:21:03,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:21:03 BoogieIcfgContainer [2025-02-06 09:21:03,446 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:21:03,448 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:21:03,448 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:21:03,451 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:21:03,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:21:02" (1/3) ... [2025-02-06 09:21:03,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8998ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:21:03, skipping insertion in model container [2025-02-06 09:21:03,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:21:02" (2/3) ... [2025-02-06 09:21:03,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8998ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:21:03, skipping insertion in model container [2025-02-06 09:21:03,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:21:03" (3/3) ... [2025-02-06 09:21:03,453 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2025-02-06 09:21:03,463 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:21:03,464 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_15-list_entry_nr.i that has 2 procedures, 112 locations, 1 initial locations, 0 loop locations, and 9 error locations. [2025-02-06 09:21:03,464 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:21:03,521 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:21:03,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 111 transitions, 226 flow [2025-02-06 09:21:03,598 INFO L124 PetriNetUnfolderBase]: 0/110 cut-off events. [2025-02-06 09:21:03,600 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:21:03,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 110 events. 0/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-02-06 09:21:03,603 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 111 transitions, 226 flow [2025-02-06 09:21:03,606 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 110 transitions, 223 flow [2025-02-06 09:21:03,613 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:21:03,621 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;@61916643, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:21:03,622 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2025-02-06 09:21:03,625 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:21:03,625 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2025-02-06 09:21:03,625 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:21:03,625 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:03,626 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:21:03,626 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:03,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:03,630 INFO L85 PathProgramCache]: Analyzing trace with hash -854684129, now seen corresponding path program 1 times [2025-02-06 09:21:03,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:03,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862533430] [2025-02-06 09:21:03,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:21:03,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:03,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 09:21:03,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 09:21:03,702 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:21:03,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:03,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:21:03,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:03,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862533430] [2025-02-06 09:21:03,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862533430] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:03,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:03,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:21:03,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468342322] [2025-02-06 09:21:03,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:03,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:21:03,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:03,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:21:03,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:21:03,835 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 111 [2025-02-06 09:21:03,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 110 transitions, 223 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2025-02-06 09:21:03,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:03,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 111 [2025-02-06 09:21:03,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:03,901 INFO L124 PetriNetUnfolderBase]: 12/257 cut-off events. [2025-02-06 09:21:03,901 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:21:03,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 257 events. 12/257 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 718 event pairs, 12 based on Foata normal form. 0/232 useless extension candidates. Maximal degree in co-relation 252. Up to 37 conditions per place. [2025-02-06 09:21:03,904 INFO L140 encePairwiseOnDemand]: 108/111 looper letters, 12 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2025-02-06 09:21:03,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 109 transitions, 249 flow [2025-02-06 09:21:03,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:21:03,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:21:03,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2025-02-06 09:21:03,913 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9099099099099099 [2025-02-06 09:21:03,913 INFO L175 Difference]: Start difference. First operand has 114 places, 110 transitions, 223 flow. Second operand 3 states and 303 transitions. [2025-02-06 09:21:03,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 109 transitions, 249 flow [2025-02-06 09:21:03,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 109 transitions, 248 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:21:03,923 INFO L231 Difference]: Finished difference. Result has 114 places, 109 transitions, 224 flow [2025-02-06 09:21:03,929 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=114, PETRI_TRANSITIONS=109} [2025-02-06 09:21:03,931 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 0 predicate places. [2025-02-06 09:21:03,934 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 109 transitions, 224 flow [2025-02-06 09:21:03,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2025-02-06 09:21:03,934 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:03,934 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:21:03,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:21:03,934 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:03,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:03,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1762184962, now seen corresponding path program 1 times [2025-02-06 09:21:03,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:03,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345542349] [2025-02-06 09:21:03,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:21:03,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:03,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 09:21:03,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 09:21:03,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:21:03,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:03,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:21:03,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:03,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345542349] [2025-02-06 09:21:03,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345542349] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:03,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:03,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:21:03,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963084170] [2025-02-06 09:21:03,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:03,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:21:03,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:03,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:21:03,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:21:04,013 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 111 [2025-02-06 09:21:04,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 109 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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) [2025-02-06 09:21:04,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:04,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 111 [2025-02-06 09:21:04,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:04,056 INFO L124 PetriNetUnfolderBase]: 16/291 cut-off events. [2025-02-06 09:21:04,057 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:21:04,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 291 events. 16/291 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1017 event pairs, 16 based on Foata normal form. 0/272 useless extension candidates. Maximal degree in co-relation 323. Up to 43 conditions per place. [2025-02-06 09:21:04,062 INFO L140 encePairwiseOnDemand]: 107/111 looper letters, 11 selfloop transitions, 1 changer transitions 0/106 dead transitions. [2025-02-06 09:21:04,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 106 transitions, 242 flow [2025-02-06 09:21:04,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:21:04,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:21:04,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2025-02-06 09:21:04,064 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9099099099099099 [2025-02-06 09:21:04,064 INFO L175 Difference]: Start difference. First operand has 114 places, 109 transitions, 224 flow. Second operand 3 states and 303 transitions. [2025-02-06 09:21:04,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 106 transitions, 242 flow [2025-02-06 09:21:04,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 106 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:21:04,066 INFO L231 Difference]: Finished difference. Result has 111 places, 106 transitions, 216 flow [2025-02-06 09:21:04,069 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=111, PETRI_TRANSITIONS=106} [2025-02-06 09:21:04,070 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, -3 predicate places. [2025-02-06 09:21:04,070 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 106 transitions, 216 flow [2025-02-06 09:21:04,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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) [2025-02-06 09:21:04,070 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:04,070 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] [2025-02-06 09:21:04,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 09:21:04,071 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:04,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:04,071 INFO L85 PathProgramCache]: Analyzing trace with hash 2094830680, now seen corresponding path program 1 times [2025-02-06 09:21:04,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:04,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033530944] [2025-02-06 09:21:04,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:21:04,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:04,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 09:21:04,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 09:21:04,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:21:04,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:04,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:21:04,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:04,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033530944] [2025-02-06 09:21:04,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033530944] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:04,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:04,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:21:04,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492346384] [2025-02-06 09:21:04,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:04,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:21:04,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:04,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:21:04,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:21:04,674 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 111 [2025-02-06 09:21:04,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 106 transitions, 216 flow. Second operand has 6 states, 6 states have (on average 80.33333333333333) internal successors, (482), 6 states have internal predecessors, (482), 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) [2025-02-06 09:21:04,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:04,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 111 [2025-02-06 09:21:04,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:04,771 INFO L124 PetriNetUnfolderBase]: 100/544 cut-off events. [2025-02-06 09:21:04,772 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:21:04,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 781 conditions, 544 events. 100/544 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2872 event pairs, 100 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 763. Up to 227 conditions per place. [2025-02-06 09:21:04,774 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 26 selfloop transitions, 5 changer transitions 0/105 dead transitions. [2025-02-06 09:21:04,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 105 transitions, 276 flow [2025-02-06 09:21:04,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:21:04,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:21:04,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 506 transitions. [2025-02-06 09:21:04,776 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7597597597597597 [2025-02-06 09:21:04,776 INFO L175 Difference]: Start difference. First operand has 111 places, 106 transitions, 216 flow. Second operand 6 states and 506 transitions. [2025-02-06 09:21:04,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 105 transitions, 276 flow [2025-02-06 09:21:04,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 105 transitions, 275 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:21:04,778 INFO L231 Difference]: Finished difference. Result has 114 places, 105 transitions, 223 flow [2025-02-06 09:21:04,779 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=223, PETRI_PLACES=114, PETRI_TRANSITIONS=105} [2025-02-06 09:21:04,779 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 0 predicate places. [2025-02-06 09:21:04,779 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 105 transitions, 223 flow [2025-02-06 09:21:04,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.33333333333333) internal successors, (482), 6 states have internal predecessors, (482), 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) [2025-02-06 09:21:04,780 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:04,780 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] [2025-02-06 09:21:04,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:21:04,780 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:04,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:04,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1257354314, now seen corresponding path program 1 times [2025-02-06 09:21:04,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:04,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121640985] [2025-02-06 09:21:04,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:21:04,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:04,792 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-06 09:21:04,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-06 09:21:04,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:21:04,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:05,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:21:05,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:05,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121640985] [2025-02-06 09:21:05,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121640985] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:05,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:05,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:21:05,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825993828] [2025-02-06 09:21:05,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:05,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:21:05,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:05,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:21:05,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:21:05,246 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 111 [2025-02-06 09:21:05,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 105 transitions, 223 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 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) [2025-02-06 09:21:05,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:05,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 111 [2025-02-06 09:21:05,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:05,449 INFO L124 PetriNetUnfolderBase]: 114/573 cut-off events. [2025-02-06 09:21:05,449 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:21:05,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 844 conditions, 573 events. 114/573 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3163 event pairs, 61 based on Foata normal form. 0/541 useless extension candidates. Maximal degree in co-relation 826. Up to 211 conditions per place. [2025-02-06 09:21:05,453 INFO L140 encePairwiseOnDemand]: 100/111 looper letters, 34 selfloop transitions, 22 changer transitions 0/134 dead transitions. [2025-02-06 09:21:05,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 134 transitions, 393 flow [2025-02-06 09:21:05,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:21:05,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:21:05,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 561 transitions. [2025-02-06 09:21:05,455 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8423423423423423 [2025-02-06 09:21:05,456 INFO L175 Difference]: Start difference. First operand has 114 places, 105 transitions, 223 flow. Second operand 6 states and 561 transitions. [2025-02-06 09:21:05,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 134 transitions, 393 flow [2025-02-06 09:21:05,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 134 transitions, 383 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:21:05,461 INFO L231 Difference]: Finished difference. Result has 119 places, 126 transitions, 363 flow [2025-02-06 09:21:05,462 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=363, PETRI_PLACES=119, PETRI_TRANSITIONS=126} [2025-02-06 09:21:05,463 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 5 predicate places. [2025-02-06 09:21:05,463 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 126 transitions, 363 flow [2025-02-06 09:21:05,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 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) [2025-02-06 09:21:05,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:05,464 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] [2025-02-06 09:21:05,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 09:21:05,464 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:05,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:05,465 INFO L85 PathProgramCache]: Analyzing trace with hash -698275047, now seen corresponding path program 1 times [2025-02-06 09:21:05,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:05,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194465861] [2025-02-06 09:21:05,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:21:05,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:05,477 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 09:21:05,486 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 09:21:05,487 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:21:05,487 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:05,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:21:05,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:05,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194465861] [2025-02-06 09:21:05,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194465861] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:05,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:05,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:21:05,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614849448] [2025-02-06 09:21:05,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:05,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:21:05,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:05,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:21:05,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:21:05,835 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 111 [2025-02-06 09:21:05,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 126 transitions, 363 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 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) [2025-02-06 09:21:05,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:05,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 111 [2025-02-06 09:21:05,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:05,986 INFO L124 PetriNetUnfolderBase]: 152/680 cut-off events. [2025-02-06 09:21:05,987 INFO L125 PetriNetUnfolderBase]: For 143/163 co-relation queries the response was YES. [2025-02-06 09:21:05,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1203 conditions, 680 events. 152/680 cut-off events. For 143/163 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4005 event pairs, 61 based on Foata normal form. 5/655 useless extension candidates. Maximal degree in co-relation 1181. Up to 268 conditions per place. [2025-02-06 09:21:05,990 INFO L140 encePairwiseOnDemand]: 100/111 looper letters, 47 selfloop transitions, 26 changer transitions 0/155 dead transitions. [2025-02-06 09:21:05,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 155 transitions, 585 flow [2025-02-06 09:21:05,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:21:05,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:21:05,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 561 transitions. [2025-02-06 09:21:05,992 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8423423423423423 [2025-02-06 09:21:05,992 INFO L175 Difference]: Start difference. First operand has 119 places, 126 transitions, 363 flow. Second operand 6 states and 561 transitions. [2025-02-06 09:21:05,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 155 transitions, 585 flow [2025-02-06 09:21:05,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 155 transitions, 585 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:21:05,996 INFO L231 Difference]: Finished difference. Result has 129 places, 147 transitions, 547 flow [2025-02-06 09:21:05,996 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=547, PETRI_PLACES=129, PETRI_TRANSITIONS=147} [2025-02-06 09:21:05,996 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 15 predicate places. [2025-02-06 09:21:05,997 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 147 transitions, 547 flow [2025-02-06 09:21:05,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 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) [2025-02-06 09:21:05,997 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:05,997 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] [2025-02-06 09:21:05,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 09:21:05,999 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:05,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:05,999 INFO L85 PathProgramCache]: Analyzing trace with hash 774684090, now seen corresponding path program 1 times [2025-02-06 09:21:05,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:05,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193850228] [2025-02-06 09:21:06,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:21:06,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:06,014 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-02-06 09:21:06,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-02-06 09:21:06,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:21:06,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:06,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:06,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:06,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193850228] [2025-02-06 09:21:06,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193850228] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:06,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:06,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:21:06,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530404274] [2025-02-06 09:21:06,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:06,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:21:06,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:06,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:21:06,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:21:06,315 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 111 [2025-02-06 09:21:06,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 147 transitions, 547 flow. Second operand has 6 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 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) [2025-02-06 09:21:06,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:06,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 111 [2025-02-06 09:21:06,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:06,485 INFO L124 PetriNetUnfolderBase]: 292/1078 cut-off events. [2025-02-06 09:21:06,485 INFO L125 PetriNetUnfolderBase]: For 577/599 co-relation queries the response was YES. [2025-02-06 09:21:06,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2445 conditions, 1078 events. 292/1078 cut-off events. For 577/599 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6908 event pairs, 101 based on Foata normal form. 9/1039 useless extension candidates. Maximal degree in co-relation 2418. Up to 532 conditions per place. [2025-02-06 09:21:06,492 INFO L140 encePairwiseOnDemand]: 96/111 looper letters, 72 selfloop transitions, 53 changer transitions 4/202 dead transitions. [2025-02-06 09:21:06,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 202 transitions, 1049 flow [2025-02-06 09:21:06,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:21:06,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:21:06,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 547 transitions. [2025-02-06 09:21:06,494 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8213213213213213 [2025-02-06 09:21:06,495 INFO L175 Difference]: Start difference. First operand has 129 places, 147 transitions, 547 flow. Second operand 6 states and 547 transitions. [2025-02-06 09:21:06,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 202 transitions, 1049 flow [2025-02-06 09:21:06,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 202 transitions, 1049 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:21:06,506 INFO L231 Difference]: Finished difference. Result has 139 places, 194 transitions, 1029 flow [2025-02-06 09:21:06,506 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1029, PETRI_PLACES=139, PETRI_TRANSITIONS=194} [2025-02-06 09:21:06,507 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 25 predicate places. [2025-02-06 09:21:06,508 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 194 transitions, 1029 flow [2025-02-06 09:21:06,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 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) [2025-02-06 09:21:06,508 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:06,508 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] [2025-02-06 09:21:06,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 09:21:06,509 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:06,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:06,510 INFO L85 PathProgramCache]: Analyzing trace with hash 432842355, now seen corresponding path program 1 times [2025-02-06 09:21:06,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:06,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559958300] [2025-02-06 09:21:06,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:21:06,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:06,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-02-06 09:21:06,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-02-06 09:21:06,530 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:21:06,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:06,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:06,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:06,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559958300] [2025-02-06 09:21:06,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559958300] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:06,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:06,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:21:06,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784781297] [2025-02-06 09:21:06,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:06,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:21:06,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:06,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:21:06,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:21:06,815 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 111 [2025-02-06 09:21:06,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 194 transitions, 1029 flow. Second operand has 6 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 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) [2025-02-06 09:21:06,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:06,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 111 [2025-02-06 09:21:06,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:07,001 INFO L124 PetriNetUnfolderBase]: 396/1383 cut-off events. [2025-02-06 09:21:07,001 INFO L125 PetriNetUnfolderBase]: For 1632/1673 co-relation queries the response was YES. [2025-02-06 09:21:07,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3760 conditions, 1383 events. 396/1383 cut-off events. For 1632/1673 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 9362 event pairs, 107 based on Foata normal form. 4/1351 useless extension candidates. Maximal degree in co-relation 3728. Up to 677 conditions per place. [2025-02-06 09:21:07,008 INFO L140 encePairwiseOnDemand]: 96/111 looper letters, 109 selfloop transitions, 61 changer transitions 10/255 dead transitions. [2025-02-06 09:21:07,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 255 transitions, 1735 flow [2025-02-06 09:21:07,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:21:07,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:21:07,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 547 transitions. [2025-02-06 09:21:07,009 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8213213213213213 [2025-02-06 09:21:07,010 INFO L175 Difference]: Start difference. First operand has 139 places, 194 transitions, 1029 flow. Second operand 6 states and 547 transitions. [2025-02-06 09:21:07,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 255 transitions, 1735 flow [2025-02-06 09:21:07,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 255 transitions, 1671 flow, removed 32 selfloop flow, removed 0 redundant places. [2025-02-06 09:21:07,065 INFO L231 Difference]: Finished difference. Result has 149 places, 241 transitions, 1551 flow [2025-02-06 09:21:07,065 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=971, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1551, PETRI_PLACES=149, PETRI_TRANSITIONS=241} [2025-02-06 09:21:07,066 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 35 predicate places. [2025-02-06 09:21:07,066 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 241 transitions, 1551 flow [2025-02-06 09:21:07,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 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) [2025-02-06 09:21:07,066 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:07,067 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] [2025-02-06 09:21:07,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 09:21:07,068 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:07,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:07,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1827911745, now seen corresponding path program 1 times [2025-02-06 09:21:07,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:07,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31858658] [2025-02-06 09:21:07,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:21:07,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:07,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 09:21:07,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:21:07,092 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:21:07,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:07,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:07,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:07,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31858658] [2025-02-06 09:21:07,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31858658] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:07,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:07,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:07,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168172313] [2025-02-06 09:21:07,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:07,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:07,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:07,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:07,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:08,519 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:08,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 241 transitions, 1551 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:08,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:08,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:08,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:09,087 INFO L124 PetriNetUnfolderBase]: 618/2294 cut-off events. [2025-02-06 09:21:09,087 INFO L125 PetriNetUnfolderBase]: For 2982/3033 co-relation queries the response was YES. [2025-02-06 09:21:09,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6493 conditions, 2294 events. 618/2294 cut-off events. For 2982/3033 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 18379 event pairs, 36 based on Foata normal form. 6/2286 useless extension candidates. Maximal degree in co-relation 6451. Up to 366 conditions per place. [2025-02-06 09:21:09,101 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 40 selfloop transitions, 18 changer transitions 18/288 dead transitions. [2025-02-06 09:21:09,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 288 transitions, 1797 flow [2025-02-06 09:21:09,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:09,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:09,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1143 transitions. [2025-02-06 09:21:09,105 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7920997920997921 [2025-02-06 09:21:09,105 INFO L175 Difference]: Start difference. First operand has 149 places, 241 transitions, 1551 flow. Second operand 13 states and 1143 transitions. [2025-02-06 09:21:09,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 288 transitions, 1797 flow [2025-02-06 09:21:09,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 288 transitions, 1729 flow, removed 34 selfloop flow, removed 0 redundant places. [2025-02-06 09:21:09,135 INFO L231 Difference]: Finished difference. Result has 168 places, 250 transitions, 1582 flow [2025-02-06 09:21:09,136 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1483, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1582, PETRI_PLACES=168, PETRI_TRANSITIONS=250} [2025-02-06 09:21:09,137 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 54 predicate places. [2025-02-06 09:21:09,137 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 250 transitions, 1582 flow [2025-02-06 09:21:09,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:09,138 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:09,138 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] [2025-02-06 09:21:09,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 09:21:09,139 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:09,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:09,140 INFO L85 PathProgramCache]: Analyzing trace with hash 152129739, now seen corresponding path program 2 times [2025-02-06 09:21:09,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:09,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397962029] [2025-02-06 09:21:09,140 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:21:09,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:09,160 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:09,168 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:21:09,170 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:21:09,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:09,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:09,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:09,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397962029] [2025-02-06 09:21:09,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397962029] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:09,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:09,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:09,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186748325] [2025-02-06 09:21:09,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:09,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:09,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:09,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:09,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:10,286 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:10,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 250 transitions, 1582 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:10,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:10,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:10,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:10,747 INFO L124 PetriNetUnfolderBase]: 620/2370 cut-off events. [2025-02-06 09:21:10,747 INFO L125 PetriNetUnfolderBase]: For 3345/3424 co-relation queries the response was YES. [2025-02-06 09:21:10,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7125 conditions, 2370 events. 620/2370 cut-off events. For 3345/3424 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 19169 event pairs, 37 based on Foata normal form. 13/2374 useless extension candidates. Maximal degree in co-relation 7072. Up to 366 conditions per place. [2025-02-06 09:21:10,759 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 34 selfloop transitions, 23 changer transitions 24/293 dead transitions. [2025-02-06 09:21:10,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 293 transitions, 1914 flow [2025-02-06 09:21:10,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:10,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:10,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1139 transitions. [2025-02-06 09:21:10,762 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7893277893277894 [2025-02-06 09:21:10,762 INFO L175 Difference]: Start difference. First operand has 168 places, 250 transitions, 1582 flow. Second operand 13 states and 1139 transitions. [2025-02-06 09:21:10,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 293 transitions, 1914 flow [2025-02-06 09:21:10,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 293 transitions, 1889 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:21:10,781 INFO L231 Difference]: Finished difference. Result has 177 places, 250 transitions, 1625 flow [2025-02-06 09:21:10,781 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1565, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1625, PETRI_PLACES=177, PETRI_TRANSITIONS=250} [2025-02-06 09:21:10,782 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 63 predicate places. [2025-02-06 09:21:10,782 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 250 transitions, 1625 flow [2025-02-06 09:21:10,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:10,783 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:10,783 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] [2025-02-06 09:21:10,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 09:21:10,783 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:10,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:10,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1160413243, now seen corresponding path program 3 times [2025-02-06 09:21:10,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:10,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516836817] [2025-02-06 09:21:10,784 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:21:10,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:10,797 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:10,803 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:21:10,803 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 09:21:10,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:11,080 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:11,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:11,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516836817] [2025-02-06 09:21:11,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516836817] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:11,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:11,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:11,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074033945] [2025-02-06 09:21:11,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:11,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:11,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:11,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:11,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:11,687 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:11,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 250 transitions, 1625 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:11,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:11,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:11,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:12,170 INFO L124 PetriNetUnfolderBase]: 563/2153 cut-off events. [2025-02-06 09:21:12,170 INFO L125 PetriNetUnfolderBase]: For 3525/3616 co-relation queries the response was YES. [2025-02-06 09:21:12,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6757 conditions, 2153 events. 563/2153 cut-off events. For 3525/3616 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 16992 event pairs, 21 based on Foata normal form. 12/2159 useless extension candidates. Maximal degree in co-relation 6700. Up to 368 conditions per place. [2025-02-06 09:21:12,184 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 42 selfloop transitions, 19 changer transitions 16/289 dead transitions. [2025-02-06 09:21:12,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 289 transitions, 2009 flow [2025-02-06 09:21:12,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:12,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:12,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1137 transitions. [2025-02-06 09:21:12,187 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7879417879417879 [2025-02-06 09:21:12,187 INFO L175 Difference]: Start difference. First operand has 177 places, 250 transitions, 1625 flow. Second operand 13 states and 1137 transitions. [2025-02-06 09:21:12,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 289 transitions, 2009 flow [2025-02-06 09:21:12,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 289 transitions, 1909 flow, removed 9 selfloop flow, removed 11 redundant places. [2025-02-06 09:21:12,208 INFO L231 Difference]: Finished difference. Result has 182 places, 255 transitions, 1673 flow [2025-02-06 09:21:12,209 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1579, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1673, PETRI_PLACES=182, PETRI_TRANSITIONS=255} [2025-02-06 09:21:12,209 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 68 predicate places. [2025-02-06 09:21:12,209 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 255 transitions, 1673 flow [2025-02-06 09:21:12,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:12,210 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:12,210 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] [2025-02-06 09:21:12,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 09:21:12,210 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:12,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:12,210 INFO L85 PathProgramCache]: Analyzing trace with hash 972184099, now seen corresponding path program 4 times [2025-02-06 09:21:12,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:12,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881222029] [2025-02-06 09:21:12,210 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 09:21:12,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:12,224 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:12,234 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:21:12,235 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 09:21:12,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:12,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:12,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:12,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881222029] [2025-02-06 09:21:12,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881222029] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:12,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:12,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-02-06 09:21:12,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29633869] [2025-02-06 09:21:12,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:12,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-06 09:21:12,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:12,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-06 09:21:12,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2025-02-06 09:21:13,478 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 111 [2025-02-06 09:21:13,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 255 transitions, 1673 flow. Second operand has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-02-06 09:21:13,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:13,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 111 [2025-02-06 09:21:13,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:14,961 INFO L124 PetriNetUnfolderBase]: 1519/4718 cut-off events. [2025-02-06 09:21:14,961 INFO L125 PetriNetUnfolderBase]: For 13877/14158 co-relation queries the response was YES. [2025-02-06 09:21:14,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17368 conditions, 4718 events. 1519/4718 cut-off events. For 13877/14158 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 41565 event pairs, 108 based on Foata normal form. 104/4796 useless extension candidates. Maximal degree in co-relation 17310. Up to 1137 conditions per place. [2025-02-06 09:21:14,991 INFO L140 encePairwiseOnDemand]: 86/111 looper letters, 454 selfloop transitions, 120 changer transitions 45/711 dead transitions. [2025-02-06 09:21:14,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 711 transitions, 6720 flow [2025-02-06 09:21:14,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-02-06 09:21:14,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2025-02-06 09:21:14,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 2023 transitions. [2025-02-06 09:21:14,995 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.729009009009009 [2025-02-06 09:21:14,995 INFO L175 Difference]: Start difference. First operand has 182 places, 255 transitions, 1673 flow. Second operand 25 states and 2023 transitions. [2025-02-06 09:21:14,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 711 transitions, 6720 flow [2025-02-06 09:21:15,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 711 transitions, 6577 flow, removed 61 selfloop flow, removed 9 redundant places. [2025-02-06 09:21:15,037 INFO L231 Difference]: Finished difference. Result has 215 places, 356 transitions, 3121 flow [2025-02-06 09:21:15,037 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1633, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=3121, PETRI_PLACES=215, PETRI_TRANSITIONS=356} [2025-02-06 09:21:15,038 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 101 predicate places. [2025-02-06 09:21:15,038 INFO L471 AbstractCegarLoop]: Abstraction has has 215 places, 356 transitions, 3121 flow [2025-02-06 09:21:15,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-02-06 09:21:15,038 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:15,038 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] [2025-02-06 09:21:15,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 09:21:15,038 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:15,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:15,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1421721671, now seen corresponding path program 5 times [2025-02-06 09:21:15,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:15,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598960688] [2025-02-06 09:21:15,039 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 09:21:15,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:15,047 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:15,056 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:21:15,056 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:21:15,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:15,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:15,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:15,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598960688] [2025-02-06 09:21:15,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598960688] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:15,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:15,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:15,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500126322] [2025-02-06 09:21:15,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:15,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:15,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:15,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:15,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:15,892 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:15,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 356 transitions, 3121 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:15,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:15,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:15,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:16,529 INFO L124 PetriNetUnfolderBase]: 1371/4714 cut-off events. [2025-02-06 09:21:16,529 INFO L125 PetriNetUnfolderBase]: For 13594/13831 co-relation queries the response was YES. [2025-02-06 09:21:16,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16667 conditions, 4714 events. 1371/4714 cut-off events. For 13594/13831 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 45010 event pairs, 57 based on Foata normal form. 38/4736 useless extension candidates. Maximal degree in co-relation 16593. Up to 884 conditions per place. [2025-02-06 09:21:16,557 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 64 selfloop transitions, 29 changer transitions 6/385 dead transitions. [2025-02-06 09:21:16,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 385 transitions, 3516 flow [2025-02-06 09:21:16,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:16,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:16,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1132 transitions. [2025-02-06 09:21:16,559 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7844767844767845 [2025-02-06 09:21:16,559 INFO L175 Difference]: Start difference. First operand has 215 places, 356 transitions, 3121 flow. Second operand 13 states and 1132 transitions. [2025-02-06 09:21:16,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 385 transitions, 3516 flow [2025-02-06 09:21:16,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 385 transitions, 3443 flow, removed 25 selfloop flow, removed 4 redundant places. [2025-02-06 09:21:16,616 INFO L231 Difference]: Finished difference. Result has 226 places, 359 transitions, 3159 flow [2025-02-06 09:21:16,617 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3061, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3159, PETRI_PLACES=226, PETRI_TRANSITIONS=359} [2025-02-06 09:21:16,617 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 112 predicate places. [2025-02-06 09:21:16,617 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 359 transitions, 3159 flow [2025-02-06 09:21:16,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:16,618 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:16,618 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] [2025-02-06 09:21:16,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 09:21:16,618 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:16,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:16,619 INFO L85 PathProgramCache]: Analyzing trace with hash -890396993, now seen corresponding path program 6 times [2025-02-06 09:21:16,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:16,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624724402] [2025-02-06 09:21:16,619 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 09:21:16,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:16,626 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:16,631 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:21:16,631 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 09:21:16,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:17,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:17,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:17,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624724402] [2025-02-06 09:21:17,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624724402] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:17,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:17,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:17,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656084560] [2025-02-06 09:21:17,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:17,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:17,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:17,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:17,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:17,666 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:17,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 359 transitions, 3159 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:17,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:17,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:17,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:18,362 INFO L124 PetriNetUnfolderBase]: 1642/5637 cut-off events. [2025-02-06 09:21:18,363 INFO L125 PetriNetUnfolderBase]: For 16664/16969 co-relation queries the response was YES. [2025-02-06 09:21:18,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20135 conditions, 5637 events. 1642/5637 cut-off events. For 16664/16969 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 55794 event pairs, 76 based on Foata normal form. 31/5648 useless extension candidates. Maximal degree in co-relation 20056. Up to 1026 conditions per place. [2025-02-06 09:21:18,400 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 69 selfloop transitions, 35 changer transitions 4/394 dead transitions. [2025-02-06 09:21:18,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 394 transitions, 3669 flow [2025-02-06 09:21:18,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:18,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:18,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1132 transitions. [2025-02-06 09:21:18,402 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7844767844767845 [2025-02-06 09:21:18,402 INFO L175 Difference]: Start difference. First operand has 226 places, 359 transitions, 3159 flow. Second operand 13 states and 1132 transitions. [2025-02-06 09:21:18,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 394 transitions, 3669 flow [2025-02-06 09:21:18,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 394 transitions, 3596 flow, removed 6 selfloop flow, removed 9 redundant places. [2025-02-06 09:21:18,477 INFO L231 Difference]: Finished difference. Result has 234 places, 367 transitions, 3311 flow [2025-02-06 09:21:18,477 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3107, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3311, PETRI_PLACES=234, PETRI_TRANSITIONS=367} [2025-02-06 09:21:18,478 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 120 predicate places. [2025-02-06 09:21:18,478 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 367 transitions, 3311 flow [2025-02-06 09:21:18,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:18,478 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:18,478 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] [2025-02-06 09:21:18,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 09:21:18,478 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:18,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:18,479 INFO L85 PathProgramCache]: Analyzing trace with hash 184438349, now seen corresponding path program 7 times [2025-02-06 09:21:18,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:18,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145860949] [2025-02-06 09:21:18,479 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 09:21:18,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:18,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 09:21:18,491 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:21:18,491 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:21:18,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:18,803 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:18,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:18,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145860949] [2025-02-06 09:21:18,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145860949] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:18,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:18,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:18,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9558224] [2025-02-06 09:21:18,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:18,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:18,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:18,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:18,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:19,252 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:19,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 367 transitions, 3311 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:19,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:19,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:19,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:20,078 INFO L124 PetriNetUnfolderBase]: 1909/6546 cut-off events. [2025-02-06 09:21:20,078 INFO L125 PetriNetUnfolderBase]: For 20671/20983 co-relation queries the response was YES. [2025-02-06 09:21:20,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23664 conditions, 6546 events. 1909/6546 cut-off events. For 20671/20983 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 66983 event pairs, 85 based on Foata normal form. 44/6566 useless extension candidates. Maximal degree in co-relation 23580. Up to 1198 conditions per place. [2025-02-06 09:21:20,207 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 72 selfloop transitions, 36 changer transitions 4/398 dead transitions. [2025-02-06 09:21:20,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 398 transitions, 3833 flow [2025-02-06 09:21:20,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:20,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:20,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1131 transitions. [2025-02-06 09:21:20,209 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7837837837837838 [2025-02-06 09:21:20,209 INFO L175 Difference]: Start difference. First operand has 234 places, 367 transitions, 3311 flow. Second operand 13 states and 1131 transitions. [2025-02-06 09:21:20,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 398 transitions, 3833 flow [2025-02-06 09:21:20,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 398 transitions, 3751 flow, removed 21 selfloop flow, removed 8 redundant places. [2025-02-06 09:21:20,344 INFO L231 Difference]: Finished difference. Result has 241 places, 375 transitions, 3463 flow [2025-02-06 09:21:20,345 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3252, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3463, PETRI_PLACES=241, PETRI_TRANSITIONS=375} [2025-02-06 09:21:20,346 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 127 predicate places. [2025-02-06 09:21:20,346 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 375 transitions, 3463 flow [2025-02-06 09:21:20,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:20,347 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:20,347 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] [2025-02-06 09:21:20,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 09:21:20,347 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:20,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:20,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1305467887, now seen corresponding path program 8 times [2025-02-06 09:21:20,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:20,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33175863] [2025-02-06 09:21:20,348 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:21:20,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:20,357 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:20,361 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:21:20,362 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:21:20,362 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:20,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:20,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:20,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33175863] [2025-02-06 09:21:20,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33175863] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:20,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:20,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:20,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97312607] [2025-02-06 09:21:20,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:20,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:20,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:20,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:20,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:21,348 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:21,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 375 transitions, 3463 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:21,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:21,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:21,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:22,151 INFO L124 PetriNetUnfolderBase]: 1910/6547 cut-off events. [2025-02-06 09:21:22,151 INFO L125 PetriNetUnfolderBase]: For 22404/22770 co-relation queries the response was YES. [2025-02-06 09:21:22,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23936 conditions, 6547 events. 1910/6547 cut-off events. For 22404/22770 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 66893 event pairs, 83 based on Foata normal form. 48/6571 useless extension candidates. Maximal degree in co-relation 23849. Up to 1190 conditions per place. [2025-02-06 09:21:22,200 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 73 selfloop transitions, 37 changer transitions 5/401 dead transitions. [2025-02-06 09:21:22,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 401 transitions, 3930 flow [2025-02-06 09:21:22,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:22,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:22,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1135 transitions. [2025-02-06 09:21:22,201 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7865557865557865 [2025-02-06 09:21:22,201 INFO L175 Difference]: Start difference. First operand has 241 places, 375 transitions, 3463 flow. Second operand 13 states and 1135 transitions. [2025-02-06 09:21:22,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 401 transitions, 3930 flow [2025-02-06 09:21:22,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 401 transitions, 3847 flow, removed 18 selfloop flow, removed 8 redundant places. [2025-02-06 09:21:22,438 INFO L231 Difference]: Finished difference. Result has 249 places, 378 transitions, 3545 flow [2025-02-06 09:21:22,439 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3390, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3545, PETRI_PLACES=249, PETRI_TRANSITIONS=378} [2025-02-06 09:21:22,440 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 135 predicate places. [2025-02-06 09:21:22,440 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 378 transitions, 3545 flow [2025-02-06 09:21:22,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:22,440 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:22,440 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] [2025-02-06 09:21:22,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-06 09:21:22,441 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:22,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:22,441 INFO L85 PathProgramCache]: Analyzing trace with hash 811846809, now seen corresponding path program 9 times [2025-02-06 09:21:22,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:22,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835867090] [2025-02-06 09:21:22,441 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:21:22,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:22,450 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:22,453 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:21:22,454 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 09:21:22,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:22,851 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:22,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:22,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835867090] [2025-02-06 09:21:22,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835867090] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:22,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:22,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:22,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420090518] [2025-02-06 09:21:22,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:22,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:22,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:22,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:22,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:23,348 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:23,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 378 transitions, 3545 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:23,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:23,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:23,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:24,398 INFO L124 PetriNetUnfolderBase]: 1911/6522 cut-off events. [2025-02-06 09:21:24,399 INFO L125 PetriNetUnfolderBase]: For 23503/23862 co-relation queries the response was YES. [2025-02-06 09:21:24,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24041 conditions, 6522 events. 1911/6522 cut-off events. For 23503/23862 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 66614 event pairs, 88 based on Foata normal form. 40/6536 useless extension candidates. Maximal degree in co-relation 23950. Up to 1200 conditions per place. [2025-02-06 09:21:24,451 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 77 selfloop transitions, 31 changer transitions 3/397 dead transitions. [2025-02-06 09:21:24,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 397 transitions, 3963 flow [2025-02-06 09:21:24,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:24,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:24,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1138 transitions. [2025-02-06 09:21:24,453 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7886347886347886 [2025-02-06 09:21:24,453 INFO L175 Difference]: Start difference. First operand has 249 places, 378 transitions, 3545 flow. Second operand 13 states and 1138 transitions. [2025-02-06 09:21:24,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 397 transitions, 3963 flow [2025-02-06 09:21:24,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 397 transitions, 3796 flow, removed 43 selfloop flow, removed 13 redundant places. [2025-02-06 09:21:24,568 INFO L231 Difference]: Finished difference. Result has 251 places, 381 transitions, 3555 flow [2025-02-06 09:21:24,568 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3425, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3555, PETRI_PLACES=251, PETRI_TRANSITIONS=381} [2025-02-06 09:21:24,569 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 137 predicate places. [2025-02-06 09:21:24,569 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 381 transitions, 3555 flow [2025-02-06 09:21:24,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:24,569 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:24,569 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] [2025-02-06 09:21:24,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-06 09:21:24,569 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:24,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:24,570 INFO L85 PathProgramCache]: Analyzing trace with hash 392937474, now seen corresponding path program 1 times [2025-02-06 09:21:24,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:24,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444029152] [2025-02-06 09:21:24,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:21:24,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:24,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 09:21:24,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:21:24,582 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:21:24,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:25,010 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:25,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:25,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444029152] [2025-02-06 09:21:25,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444029152] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:25,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:25,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:25,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219459831] [2025-02-06 09:21:25,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:25,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:25,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:25,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:25,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:25,481 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:25,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 381 transitions, 3555 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:25,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:25,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:25,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:26,370 INFO L124 PetriNetUnfolderBase]: 2174/7389 cut-off events. [2025-02-06 09:21:26,370 INFO L125 PetriNetUnfolderBase]: For 27440/27828 co-relation queries the response was YES. [2025-02-06 09:21:26,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27120 conditions, 7389 events. 2174/7389 cut-off events. For 27440/27828 co-relation queries the response was YES. Maximal size of possible extension queue 475. Compared 77321 event pairs, 97 based on Foata normal form. 42/7401 useless extension candidates. Maximal degree in co-relation 27031. Up to 1368 conditions per place. [2025-02-06 09:21:26,434 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 83 selfloop transitions, 34 changer transitions 3/406 dead transitions. [2025-02-06 09:21:26,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 406 transitions, 4070 flow [2025-02-06 09:21:26,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:26,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:26,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1139 transitions. [2025-02-06 09:21:26,435 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7893277893277894 [2025-02-06 09:21:26,435 INFO L175 Difference]: Start difference. First operand has 251 places, 381 transitions, 3555 flow. Second operand 13 states and 1139 transitions. [2025-02-06 09:21:26,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 406 transitions, 4070 flow [2025-02-06 09:21:26,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 406 transitions, 3962 flow, removed 32 selfloop flow, removed 8 redundant places. [2025-02-06 09:21:26,570 INFO L231 Difference]: Finished difference. Result has 258 places, 387 transitions, 3670 flow [2025-02-06 09:21:26,570 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3488, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3670, PETRI_PLACES=258, PETRI_TRANSITIONS=387} [2025-02-06 09:21:26,570 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 144 predicate places. [2025-02-06 09:21:26,570 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 387 transitions, 3670 flow [2025-02-06 09:21:26,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:26,571 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:26,571 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] [2025-02-06 09:21:26,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-06 09:21:26,571 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:26,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:26,572 INFO L85 PathProgramCache]: Analyzing trace with hash 736966750, now seen corresponding path program 2 times [2025-02-06 09:21:26,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:26,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5929607] [2025-02-06 09:21:26,572 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:21:26,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:26,578 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:26,582 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:21:26,582 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:21:26,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:26,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:26,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:26,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5929607] [2025-02-06 09:21:26,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5929607] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:26,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:26,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:26,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359648771] [2025-02-06 09:21:26,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:26,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:26,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:26,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:26,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:27,281 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:27,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 387 transitions, 3670 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:27,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:27,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:27,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:28,353 INFO L124 PetriNetUnfolderBase]: 2174/7407 cut-off events. [2025-02-06 09:21:28,353 INFO L125 PetriNetUnfolderBase]: For 27784/28172 co-relation queries the response was YES. [2025-02-06 09:21:28,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27244 conditions, 7407 events. 2174/7407 cut-off events. For 27784/28172 co-relation queries the response was YES. Maximal size of possible extension queue 475. Compared 77502 event pairs, 100 based on Foata normal form. 39/7416 useless extension candidates. Maximal degree in co-relation 27152. Up to 1371 conditions per place. [2025-02-06 09:21:28,411 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 81 selfloop transitions, 31 changer transitions 5/403 dead transitions. [2025-02-06 09:21:28,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 403 transitions, 4038 flow [2025-02-06 09:21:28,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:28,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1139 transitions. [2025-02-06 09:21:28,415 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7893277893277894 [2025-02-06 09:21:28,416 INFO L175 Difference]: Start difference. First operand has 258 places, 387 transitions, 3670 flow. Second operand 13 states and 1139 transitions. [2025-02-06 09:21:28,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 403 transitions, 4038 flow [2025-02-06 09:21:28,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 403 transitions, 3976 flow, removed 5 selfloop flow, removed 9 redundant places. [2025-02-06 09:21:28,535 INFO L231 Difference]: Finished difference. Result has 263 places, 387 transitions, 3691 flow [2025-02-06 09:21:28,535 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3614, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3691, PETRI_PLACES=263, PETRI_TRANSITIONS=387} [2025-02-06 09:21:28,535 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 149 predicate places. [2025-02-06 09:21:28,536 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 387 transitions, 3691 flow [2025-02-06 09:21:28,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:28,536 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:28,536 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] [2025-02-06 09:21:28,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-06 09:21:28,536 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:28,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:28,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1737097820, now seen corresponding path program 3 times [2025-02-06 09:21:28,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:28,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024100842] [2025-02-06 09:21:28,537 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:21:28,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:28,545 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:28,548 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:21:28,548 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 09:21:28,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:28,886 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:28,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:28,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024100842] [2025-02-06 09:21:28,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024100842] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:28,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:28,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:28,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833369964] [2025-02-06 09:21:28,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:28,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:28,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:28,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:28,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:29,284 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:29,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 387 transitions, 3691 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:29,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:29,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:29,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:30,100 INFO L124 PetriNetUnfolderBase]: 1907/6567 cut-off events. [2025-02-06 09:21:30,101 INFO L125 PetriNetUnfolderBase]: For 24507/24856 co-relation queries the response was YES. [2025-02-06 09:21:30,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24111 conditions, 6567 events. 1907/6567 cut-off events. For 24507/24856 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 67371 event pairs, 87 based on Foata normal form. 35/6576 useless extension candidates. Maximal degree in co-relation 24017. Up to 1208 conditions per place. [2025-02-06 09:21:30,167 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 78 selfloop transitions, 28 changer transitions 9/401 dead transitions. [2025-02-06 09:21:30,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 401 transitions, 4001 flow [2025-02-06 09:21:30,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:30,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:30,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1135 transitions. [2025-02-06 09:21:30,169 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7865557865557865 [2025-02-06 09:21:30,169 INFO L175 Difference]: Start difference. First operand has 263 places, 387 transitions, 3691 flow. Second operand 13 states and 1135 transitions. [2025-02-06 09:21:30,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 401 transitions, 4001 flow [2025-02-06 09:21:30,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 401 transitions, 3918 flow, removed 8 selfloop flow, removed 12 redundant places. [2025-02-06 09:21:30,287 INFO L231 Difference]: Finished difference. Result has 264 places, 381 transitions, 3574 flow [2025-02-06 09:21:30,287 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3540, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3574, PETRI_PLACES=264, PETRI_TRANSITIONS=381} [2025-02-06 09:21:30,288 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 150 predicate places. [2025-02-06 09:21:30,288 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 381 transitions, 3574 flow [2025-02-06 09:21:30,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:30,288 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:30,288 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] [2025-02-06 09:21:30,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-06 09:21:30,288 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:30,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:30,289 INFO L85 PathProgramCache]: Analyzing trace with hash -292962586, now seen corresponding path program 4 times [2025-02-06 09:21:30,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:30,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20284554] [2025-02-06 09:21:30,289 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 09:21:30,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:30,296 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:30,303 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:21:30,303 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 09:21:30,303 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:30,566 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:30,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:30,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20284554] [2025-02-06 09:21:30,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20284554] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:30,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:30,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:30,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544343049] [2025-02-06 09:21:30,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:30,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:30,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:30,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:30,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:30,960 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:30,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 381 transitions, 3574 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:30,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:30,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:30,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:31,778 INFO L124 PetriNetUnfolderBase]: 1906/6530 cut-off events. [2025-02-06 09:21:31,778 INFO L125 PetriNetUnfolderBase]: For 24005/24348 co-relation queries the response was YES. [2025-02-06 09:21:31,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23886 conditions, 6530 events. 1906/6530 cut-off events. For 24005/24348 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 66774 event pairs, 88 based on Foata normal form. 37/6541 useless extension candidates. Maximal degree in co-relation 23791. Up to 1196 conditions per place. [2025-02-06 09:21:31,832 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 74 selfloop transitions, 31 changer transitions 5/396 dead transitions. [2025-02-06 09:21:31,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 396 transitions, 3935 flow [2025-02-06 09:21:31,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:31,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:31,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1138 transitions. [2025-02-06 09:21:31,834 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7886347886347886 [2025-02-06 09:21:31,834 INFO L175 Difference]: Start difference. First operand has 264 places, 381 transitions, 3574 flow. Second operand 13 states and 1138 transitions. [2025-02-06 09:21:31,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 396 transitions, 3935 flow [2025-02-06 09:21:31,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 396 transitions, 3841 flow, removed 14 selfloop flow, removed 15 redundant places. [2025-02-06 09:21:31,938 INFO L231 Difference]: Finished difference. Result has 258 places, 381 transitions, 3570 flow [2025-02-06 09:21:31,938 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3501, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3570, PETRI_PLACES=258, PETRI_TRANSITIONS=381} [2025-02-06 09:21:31,939 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 144 predicate places. [2025-02-06 09:21:31,939 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 381 transitions, 3570 flow [2025-02-06 09:21:31,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:31,939 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:31,939 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] [2025-02-06 09:21:31,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-06 09:21:31,940 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:31,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:31,940 INFO L85 PathProgramCache]: Analyzing trace with hash -305339652, now seen corresponding path program 5 times [2025-02-06 09:21:31,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:31,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051989682] [2025-02-06 09:21:31,940 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 09:21:31,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:31,947 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:31,950 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:21:31,950 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:21:31,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:32,158 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:32,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:32,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051989682] [2025-02-06 09:21:32,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051989682] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:32,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:32,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:32,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438534294] [2025-02-06 09:21:32,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:32,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:32,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:32,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:32,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:32,645 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:32,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 381 transitions, 3570 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:32,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:32,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:32,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:33,370 INFO L124 PetriNetUnfolderBase]: 1637/5690 cut-off events. [2025-02-06 09:21:33,371 INFO L125 PetriNetUnfolderBase]: For 20288/20591 co-relation queries the response was YES. [2025-02-06 09:21:33,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20744 conditions, 5690 events. 1637/5690 cut-off events. For 20288/20591 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 56564 event pairs, 77 based on Foata normal form. 30/5698 useless extension candidates. Maximal degree in co-relation 20652. Up to 1035 conditions per place. [2025-02-06 09:21:33,407 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 70 selfloop transitions, 23 changer transitions 10/389 dead transitions. [2025-02-06 09:21:33,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 389 transitions, 3794 flow [2025-02-06 09:21:33,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:33,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:33,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1134 transitions. [2025-02-06 09:21:33,408 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7858627858627859 [2025-02-06 09:21:33,408 INFO L175 Difference]: Start difference. First operand has 258 places, 381 transitions, 3570 flow. Second operand 13 states and 1134 transitions. [2025-02-06 09:21:33,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 389 transitions, 3794 flow [2025-02-06 09:21:33,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 389 transitions, 3691 flow, removed 10 selfloop flow, removed 14 redundant places. [2025-02-06 09:21:33,495 INFO L231 Difference]: Finished difference. Result has 255 places, 371 transitions, 3372 flow [2025-02-06 09:21:33,496 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3401, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3372, PETRI_PLACES=255, PETRI_TRANSITIONS=371} [2025-02-06 09:21:33,496 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 141 predicate places. [2025-02-06 09:21:33,496 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 371 transitions, 3372 flow [2025-02-06 09:21:33,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:33,497 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:33,497 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] [2025-02-06 09:21:33,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-06 09:21:33,497 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:33,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:33,497 INFO L85 PathProgramCache]: Analyzing trace with hash -254220260, now seen corresponding path program 6 times [2025-02-06 09:21:33,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:33,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584493588] [2025-02-06 09:21:33,498 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 09:21:33,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:33,503 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:33,506 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:21:33,506 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 09:21:33,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:33,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:33,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584493588] [2025-02-06 09:21:33,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584493588] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:33,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:33,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:33,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043355284] [2025-02-06 09:21:33,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:33,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:33,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:33,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:33,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:34,175 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:34,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 371 transitions, 3372 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:34,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:34,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:34,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:34,781 INFO L124 PetriNetUnfolderBase]: 1367/4801 cut-off events. [2025-02-06 09:21:34,781 INFO L125 PetriNetUnfolderBase]: For 15445/15671 co-relation queries the response was YES. [2025-02-06 09:21:34,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17278 conditions, 4801 events. 1367/4801 cut-off events. For 15445/15671 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 46022 event pairs, 58 based on Foata normal form. 35/4818 useless extension candidates. Maximal degree in co-relation 17213. Up to 874 conditions per place. [2025-02-06 09:21:34,815 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 66 selfloop transitions, 26 changer transitions 8/386 dead transitions. [2025-02-06 09:21:34,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 386 transitions, 3618 flow [2025-02-06 09:21:34,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:34,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:34,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1127 transitions. [2025-02-06 09:21:34,816 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.781011781011781 [2025-02-06 09:21:34,817 INFO L175 Difference]: Start difference. First operand has 255 places, 371 transitions, 3372 flow. Second operand 13 states and 1127 transitions. [2025-02-06 09:21:34,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 386 transitions, 3618 flow [2025-02-06 09:21:34,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 386 transitions, 3523 flow, removed 10 selfloop flow, removed 15 redundant places. [2025-02-06 09:21:34,889 INFO L231 Difference]: Finished difference. Result has 245 places, 365 transitions, 3246 flow [2025-02-06 09:21:34,889 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3213, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3246, PETRI_PLACES=245, PETRI_TRANSITIONS=365} [2025-02-06 09:21:34,889 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 131 predicate places. [2025-02-06 09:21:34,889 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 365 transitions, 3246 flow [2025-02-06 09:21:34,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:34,890 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:34,890 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] [2025-02-06 09:21:34,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-06 09:21:34,890 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:34,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:34,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1405176266, now seen corresponding path program 7 times [2025-02-06 09:21:34,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:34,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898396740] [2025-02-06 09:21:34,891 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 09:21:34,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:34,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 09:21:34,899 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:21:34,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:21:34,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:35,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:35,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:35,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898396740] [2025-02-06 09:21:35,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898396740] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:35,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:35,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:35,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513852436] [2025-02-06 09:21:35,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:35,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:35,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:35,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:35,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:35,501 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:35,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 365 transitions, 3246 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:35,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:35,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:35,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:36,117 INFO L124 PetriNetUnfolderBase]: 1367/4818 cut-off events. [2025-02-06 09:21:36,118 INFO L125 PetriNetUnfolderBase]: For 14506/14745 co-relation queries the response was YES. [2025-02-06 09:21:36,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17132 conditions, 4818 events. 1367/4818 cut-off events. For 14506/14745 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 46155 event pairs, 60 based on Foata normal form. 35/4835 useless extension candidates. Maximal degree in co-relation 17069. Up to 861 conditions per place. [2025-02-06 09:21:36,145 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 63 selfloop transitions, 28 changer transitions 4/381 dead transitions. [2025-02-06 09:21:36,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 381 transitions, 3548 flow [2025-02-06 09:21:36,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:36,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:36,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1131 transitions. [2025-02-06 09:21:36,147 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7837837837837838 [2025-02-06 09:21:36,147 INFO L175 Difference]: Start difference. First operand has 245 places, 365 transitions, 3246 flow. Second operand 13 states and 1131 transitions. [2025-02-06 09:21:36,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 381 transitions, 3548 flow [2025-02-06 09:21:36,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 381 transitions, 3434 flow, removed 17 selfloop flow, removed 16 redundant places. [2025-02-06 09:21:36,206 INFO L231 Difference]: Finished difference. Result has 239 places, 365 transitions, 3223 flow [2025-02-06 09:21:36,207 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3153, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3223, PETRI_PLACES=239, PETRI_TRANSITIONS=365} [2025-02-06 09:21:36,207 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 125 predicate places. [2025-02-06 09:21:36,207 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 365 transitions, 3223 flow [2025-02-06 09:21:36,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:36,208 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:36,208 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] [2025-02-06 09:21:36,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-02-06 09:21:36,208 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:36,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:36,208 INFO L85 PathProgramCache]: Analyzing trace with hash -764877314, now seen corresponding path program 8 times [2025-02-06 09:21:36,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:36,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221790807] [2025-02-06 09:21:36,209 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:21:36,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:36,216 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:36,219 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:21:36,219 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:21:36,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:36,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:36,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:36,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221790807] [2025-02-06 09:21:36,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221790807] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:36,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:36,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:36,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851593406] [2025-02-06 09:21:36,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:36,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:36,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:36,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:36,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:36,876 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:36,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 365 transitions, 3223 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:36,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:36,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:36,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:37,479 INFO L124 PetriNetUnfolderBase]: 1365/4791 cut-off events. [2025-02-06 09:21:37,479 INFO L125 PetriNetUnfolderBase]: For 14140/14363 co-relation queries the response was YES. [2025-02-06 09:21:37,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16979 conditions, 4791 events. 1365/4791 cut-off events. For 14140/14363 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 45920 event pairs, 61 based on Foata normal form. 34/4807 useless extension candidates. Maximal degree in co-relation 16919. Up to 864 conditions per place. [2025-02-06 09:21:37,509 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 60 selfloop transitions, 30 changer transitions 5/381 dead transitions. [2025-02-06 09:21:37,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 381 transitions, 3522 flow [2025-02-06 09:21:37,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:37,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:37,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1130 transitions. [2025-02-06 09:21:37,512 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7830907830907831 [2025-02-06 09:21:37,512 INFO L175 Difference]: Start difference. First operand has 239 places, 365 transitions, 3223 flow. Second operand 13 states and 1130 transitions. [2025-02-06 09:21:37,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 381 transitions, 3522 flow [2025-02-06 09:21:37,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 381 transitions, 3452 flow, removed 5 selfloop flow, removed 11 redundant places. [2025-02-06 09:21:37,576 INFO L231 Difference]: Finished difference. Result has 242 places, 366 transitions, 3255 flow [2025-02-06 09:21:37,576 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3163, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3255, PETRI_PLACES=242, PETRI_TRANSITIONS=366} [2025-02-06 09:21:37,577 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 128 predicate places. [2025-02-06 09:21:37,577 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 366 transitions, 3255 flow [2025-02-06 09:21:37,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:37,577 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:37,577 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] [2025-02-06 09:21:37,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-02-06 09:21:37,577 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:37,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:37,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1927979198, now seen corresponding path program 9 times [2025-02-06 09:21:37,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:37,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705756973] [2025-02-06 09:21:37,578 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:21:37,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:37,585 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:37,588 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:21:37,588 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 09:21:37,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:37,868 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:37,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:37,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705756973] [2025-02-06 09:21:37,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705756973] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:37,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:37,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:37,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092898641] [2025-02-06 09:21:37,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:37,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:37,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:37,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:37,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:38,307 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:38,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 366 transitions, 3255 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:38,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:38,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:38,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:38,812 INFO L124 PetriNetUnfolderBase]: 1096/3975 cut-off events. [2025-02-06 09:21:38,812 INFO L125 PetriNetUnfolderBase]: For 11457/11638 co-relation queries the response was YES. [2025-02-06 09:21:38,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13981 conditions, 3975 events. 1096/3975 cut-off events. For 11457/11638 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 36502 event pairs, 50 based on Foata normal form. 28/3989 useless extension candidates. Maximal degree in co-relation 13918. Up to 700 conditions per place. [2025-02-06 09:21:38,840 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 55 selfloop transitions, 21 changer transitions 12/374 dead transitions. [2025-02-06 09:21:38,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 374 transitions, 3435 flow [2025-02-06 09:21:38,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:38,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:38,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1126 transitions. [2025-02-06 09:21:38,841 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7803187803187803 [2025-02-06 09:21:38,841 INFO L175 Difference]: Start difference. First operand has 242 places, 366 transitions, 3255 flow. Second operand 13 states and 1126 transitions. [2025-02-06 09:21:38,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 374 transitions, 3435 flow [2025-02-06 09:21:38,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 374 transitions, 3374 flow, removed 6 selfloop flow, removed 10 redundant places. [2025-02-06 09:21:38,901 INFO L231 Difference]: Finished difference. Result has 243 places, 355 transitions, 3100 flow [2025-02-06 09:21:38,902 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3128, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3100, PETRI_PLACES=243, PETRI_TRANSITIONS=355} [2025-02-06 09:21:38,902 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 129 predicate places. [2025-02-06 09:21:38,902 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 355 transitions, 3100 flow [2025-02-06 09:21:38,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:38,903 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:38,903 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] [2025-02-06 09:21:38,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-02-06 09:21:38,903 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:38,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:38,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1240706426, now seen corresponding path program 10 times [2025-02-06 09:21:38,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:38,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56251074] [2025-02-06 09:21:38,904 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 09:21:38,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:38,910 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:38,914 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:21:38,914 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 09:21:38,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:39,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:39,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:39,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56251074] [2025-02-06 09:21:39,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56251074] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:39,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:39,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-02-06 09:21:39,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470994961] [2025-02-06 09:21:39,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:39,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-06 09:21:39,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:39,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-06 09:21:39,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2025-02-06 09:21:39,664 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 111 [2025-02-06 09:21:39,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 355 transitions, 3100 flow. Second operand has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-02-06 09:21:39,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:39,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 111 [2025-02-06 09:21:39,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:40,802 INFO L124 PetriNetUnfolderBase]: 1914/5762 cut-off events. [2025-02-06 09:21:40,802 INFO L125 PetriNetUnfolderBase]: For 23910/24378 co-relation queries the response was YES. [2025-02-06 09:21:40,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23117 conditions, 5762 events. 1914/5762 cut-off events. For 23910/24378 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 53266 event pairs, 145 based on Foata normal form. 111/5839 useless extension candidates. Maximal degree in co-relation 23055. Up to 1232 conditions per place. [2025-02-06 09:21:40,841 INFO L140 encePairwiseOnDemand]: 86/111 looper letters, 493 selfloop transitions, 138 changer transitions 39/795 dead transitions. [2025-02-06 09:21:40,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 795 transitions, 8309 flow [2025-02-06 09:21:40,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-06 09:21:40,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-02-06 09:21:40,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1576 transitions. [2025-02-06 09:21:40,843 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7472735893788526 [2025-02-06 09:21:40,843 INFO L175 Difference]: Start difference. First operand has 243 places, 355 transitions, 3100 flow. Second operand 19 states and 1576 transitions. [2025-02-06 09:21:40,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 795 transitions, 8309 flow [2025-02-06 09:21:40,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 795 transitions, 8104 flow, removed 32 selfloop flow, removed 19 redundant places. [2025-02-06 09:21:40,929 INFO L231 Difference]: Finished difference. Result has 245 places, 451 transitions, 4543 flow [2025-02-06 09:21:40,929 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3008, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4543, PETRI_PLACES=245, PETRI_TRANSITIONS=451} [2025-02-06 09:21:40,929 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 131 predicate places. [2025-02-06 09:21:40,929 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 451 transitions, 4543 flow [2025-02-06 09:21:40,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-02-06 09:21:40,930 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:40,930 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] [2025-02-06 09:21:40,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-02-06 09:21:40,930 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:40,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:40,931 INFO L85 PathProgramCache]: Analyzing trace with hash -143492506, now seen corresponding path program 11 times [2025-02-06 09:21:40,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:40,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953709460] [2025-02-06 09:21:40,931 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 09:21:40,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:40,937 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:40,939 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:21:40,940 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:21:40,940 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:41,157 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:41,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:41,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953709460] [2025-02-06 09:21:41,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953709460] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:41,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:41,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:41,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123187288] [2025-02-06 09:21:41,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:41,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:41,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:41,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:41,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:41,534 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:41,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 451 transitions, 4543 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:41,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:41,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:41,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:42,145 INFO L124 PetriNetUnfolderBase]: 1419/4877 cut-off events. [2025-02-06 09:21:42,146 INFO L125 PetriNetUnfolderBase]: For 18570/18880 co-relation queries the response was YES. [2025-02-06 09:21:42,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18370 conditions, 4877 events. 1419/4877 cut-off events. For 18570/18880 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 46879 event pairs, 57 based on Foata normal form. 48/4909 useless extension candidates. Maximal degree in co-relation 18304. Up to 879 conditions per place. [2025-02-06 09:21:42,176 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 40 selfloop transitions, 63 changer transitions 4/467 dead transitions. [2025-02-06 09:21:42,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 467 transitions, 4846 flow [2025-02-06 09:21:42,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:42,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:42,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1122 transitions. [2025-02-06 09:21:42,177 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7775467775467776 [2025-02-06 09:21:42,177 INFO L175 Difference]: Start difference. First operand has 245 places, 451 transitions, 4543 flow. Second operand 13 states and 1122 transitions. [2025-02-06 09:21:42,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 467 transitions, 4846 flow [2025-02-06 09:21:42,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 467 transitions, 4782 flow, removed 20 selfloop flow, removed 3 redundant places. [2025-02-06 09:21:42,259 INFO L231 Difference]: Finished difference. Result has 256 places, 449 transitions, 4612 flow [2025-02-06 09:21:42,260 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=4479, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4612, PETRI_PLACES=256, PETRI_TRANSITIONS=449} [2025-02-06 09:21:42,260 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 142 predicate places. [2025-02-06 09:21:42,260 INFO L471 AbstractCegarLoop]: Abstraction has has 256 places, 449 transitions, 4612 flow [2025-02-06 09:21:42,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:42,260 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:42,261 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] [2025-02-06 09:21:42,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-02-06 09:21:42,261 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:42,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:42,261 INFO L85 PathProgramCache]: Analyzing trace with hash 2145563958, now seen corresponding path program 12 times [2025-02-06 09:21:42,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:42,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618470055] [2025-02-06 09:21:42,261 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 09:21:42,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:42,267 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:42,269 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:21:42,269 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 09:21:42,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:42,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:42,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:42,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618470055] [2025-02-06 09:21:42,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618470055] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:42,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:42,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:42,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141725729] [2025-02-06 09:21:42,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:42,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:42,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:42,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:42,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:42,940 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:42,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 449 transitions, 4612 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:42,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:42,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:42,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:43,776 INFO L124 PetriNetUnfolderBase]: 1688/5727 cut-off events. [2025-02-06 09:21:43,776 INFO L125 PetriNetUnfolderBase]: For 22620/22935 co-relation queries the response was YES. [2025-02-06 09:21:43,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21792 conditions, 5727 events. 1688/5727 cut-off events. For 22620/22935 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 57013 event pairs, 67 based on Foata normal form. 30/5738 useless extension candidates. Maximal degree in co-relation 21725. Up to 1041 conditions per place. [2025-02-06 09:21:43,806 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 75 selfloop transitions, 35 changer transitions 1/471 dead transitions. [2025-02-06 09:21:43,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 471 transitions, 5011 flow [2025-02-06 09:21:43,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:43,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:43,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1135 transitions. [2025-02-06 09:21:43,807 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7865557865557865 [2025-02-06 09:21:43,808 INFO L175 Difference]: Start difference. First operand has 256 places, 449 transitions, 4612 flow. Second operand 13 states and 1135 transitions. [2025-02-06 09:21:43,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 471 transitions, 5011 flow [2025-02-06 09:21:43,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 471 transitions, 4898 flow, removed 3 selfloop flow, removed 12 redundant places. [2025-02-06 09:21:43,900 INFO L231 Difference]: Finished difference. Result has 259 places, 455 transitions, 4674 flow [2025-02-06 09:21:43,900 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=4513, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4674, PETRI_PLACES=259, PETRI_TRANSITIONS=455} [2025-02-06 09:21:43,900 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 145 predicate places. [2025-02-06 09:21:43,900 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 455 transitions, 4674 flow [2025-02-06 09:21:43,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:43,901 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:43,901 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] [2025-02-06 09:21:43,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-02-06 09:21:43,901 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:43,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:43,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1870818112, now seen corresponding path program 13 times [2025-02-06 09:21:43,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:43,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543224156] [2025-02-06 09:21:43,902 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 09:21:43,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:43,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 09:21:43,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:21:43,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:21:43,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:44,086 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:44,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:44,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543224156] [2025-02-06 09:21:44,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543224156] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:44,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:44,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:44,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861377829] [2025-02-06 09:21:44,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:44,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:44,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:44,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:44,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:44,625 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:44,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 455 transitions, 4674 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:44,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:44,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:44,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:45,312 INFO L124 PetriNetUnfolderBase]: 1417/4881 cut-off events. [2025-02-06 09:21:45,313 INFO L125 PetriNetUnfolderBase]: For 19299/19560 co-relation queries the response was YES. [2025-02-06 09:21:45,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18619 conditions, 4881 events. 1417/4881 cut-off events. For 19299/19560 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 46855 event pairs, 59 based on Foata normal form. 29/4893 useless extension candidates. Maximal degree in co-relation 18549. Up to 879 conditions per place. [2025-02-06 09:21:45,353 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 60 selfloop transitions, 43 changer transitions 3/464 dead transitions. [2025-02-06 09:21:45,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 464 transitions, 4864 flow [2025-02-06 09:21:45,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:45,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:45,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1125 transitions. [2025-02-06 09:21:45,355 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7796257796257796 [2025-02-06 09:21:45,355 INFO L175 Difference]: Start difference. First operand has 259 places, 455 transitions, 4674 flow. Second operand 13 states and 1125 transitions. [2025-02-06 09:21:45,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 464 transitions, 4864 flow [2025-02-06 09:21:45,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 464 transitions, 4780 flow, removed 6 selfloop flow, removed 10 redundant places. [2025-02-06 09:21:45,458 INFO L231 Difference]: Finished difference. Result has 263 places, 447 transitions, 4583 flow [2025-02-06 09:21:45,459 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=4480, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4583, PETRI_PLACES=263, PETRI_TRANSITIONS=447} [2025-02-06 09:21:45,460 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 149 predicate places. [2025-02-06 09:21:45,460 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 447 transitions, 4583 flow [2025-02-06 09:21:45,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:45,460 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:45,460 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] [2025-02-06 09:21:45,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-02-06 09:21:45,460 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:45,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:45,461 INFO L85 PathProgramCache]: Analyzing trace with hash -159240870, now seen corresponding path program 14 times [2025-02-06 09:21:45,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:45,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998978103] [2025-02-06 09:21:45,461 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:21:45,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:45,473 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:45,476 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:21:45,476 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:21:45,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:45,637 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:45,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:45,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998978103] [2025-02-06 09:21:45,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998978103] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:45,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:45,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:45,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200515634] [2025-02-06 09:21:45,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:45,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:45,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:45,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:45,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:46,123 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:46,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 447 transitions, 4583 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:46,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:46,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:46,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:46,699 INFO L124 PetriNetUnfolderBase]: 1105/3916 cut-off events. [2025-02-06 09:21:46,700 INFO L125 PetriNetUnfolderBase]: For 15294/15512 co-relation queries the response was YES. [2025-02-06 09:21:46,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14721 conditions, 3916 events. 1105/3916 cut-off events. For 15294/15512 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 35768 event pairs, 50 based on Foata normal form. 25/3926 useless extension candidates. Maximal degree in co-relation 14650. Up to 693 conditions per place. [2025-02-06 09:21:46,725 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 47 selfloop transitions, 40 changer transitions 6/387 dead transitions. [2025-02-06 09:21:46,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 387 transitions, 3804 flow [2025-02-06 09:21:46,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:46,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:46,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1122 transitions. [2025-02-06 09:21:46,727 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7775467775467776 [2025-02-06 09:21:46,727 INFO L175 Difference]: Start difference. First operand has 263 places, 447 transitions, 4583 flow. Second operand 13 states and 1122 transitions. [2025-02-06 09:21:46,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 387 transitions, 3804 flow [2025-02-06 09:21:46,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 387 transitions, 3635 flow, removed 41 selfloop flow, removed 20 redundant places. [2025-02-06 09:21:46,798 INFO L231 Difference]: Finished difference. Result has 248 places, 367 transitions, 3405 flow [2025-02-06 09:21:46,799 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3390, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3405, PETRI_PLACES=248, PETRI_TRANSITIONS=367} [2025-02-06 09:21:46,799 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 134 predicate places. [2025-02-06 09:21:46,799 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 367 transitions, 3405 flow [2025-02-06 09:21:46,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:46,800 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:46,800 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] [2025-02-06 09:21:46,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-02-06 09:21:46,800 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:46,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:46,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1254933028, now seen corresponding path program 15 times [2025-02-06 09:21:46,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:46,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292144362] [2025-02-06 09:21:46,801 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:21:46,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:46,811 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:46,813 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:21:46,814 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 09:21:46,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:47,161 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:47,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:47,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292144362] [2025-02-06 09:21:47,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292144362] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:47,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:47,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:47,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025094675] [2025-02-06 09:21:47,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:47,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:47,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:47,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:47,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:47,538 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:47,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 367 transitions, 3405 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:47,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:47,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:47,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:47,961 INFO L124 PetriNetUnfolderBase]: 831/3035 cut-off events. [2025-02-06 09:21:47,961 INFO L125 PetriNetUnfolderBase]: For 10420/10576 co-relation queries the response was YES. [2025-02-06 09:21:47,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10890 conditions, 3035 events. 831/3035 cut-off events. For 10420/10576 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 26191 event pairs, 39 based on Foata normal form. 14/3038 useless extension candidates. Maximal degree in co-relation 10829. Up to 524 conditions per place. [2025-02-06 09:21:47,980 INFO L140 encePairwiseOnDemand]: 94/111 looper letters, 45 selfloop transitions, 21 changer transitions 15/307 dead transitions. [2025-02-06 09:21:47,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 307 transitions, 2580 flow [2025-02-06 09:21:47,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:47,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:47,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1115 transitions. [2025-02-06 09:21:47,982 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7726957726957727 [2025-02-06 09:21:47,982 INFO L175 Difference]: Start difference. First operand has 248 places, 367 transitions, 3405 flow. Second operand 13 states and 1115 transitions. [2025-02-06 09:21:47,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 307 transitions, 2580 flow [2025-02-06 09:21:48,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 307 transitions, 2408 flow, removed 49 selfloop flow, removed 26 redundant places. [2025-02-06 09:21:48,022 INFO L231 Difference]: Finished difference. Result has 220 places, 279 transitions, 2104 flow [2025-02-06 09:21:48,023 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2195, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2104, PETRI_PLACES=220, PETRI_TRANSITIONS=279} [2025-02-06 09:21:48,023 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 106 predicate places. [2025-02-06 09:21:48,023 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 279 transitions, 2104 flow [2025-02-06 09:21:48,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:48,024 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:48,024 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] [2025-02-06 09:21:48,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-02-06 09:21:48,024 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:48,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:48,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1399763320, now seen corresponding path program 16 times [2025-02-06 09:21:48,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:48,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550544278] [2025-02-06 09:21:48,025 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 09:21:48,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:48,031 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:48,037 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:21:48,037 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 09:21:48,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:48,266 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:48,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:48,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550544278] [2025-02-06 09:21:48,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550544278] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:48,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:48,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:48,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678512014] [2025-02-06 09:21:48,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:48,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:48,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:48,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:48,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:48,602 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:48,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 279 transitions, 2104 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:48,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:48,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:48,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:49,018 INFO L124 PetriNetUnfolderBase]: 825/2997 cut-off events. [2025-02-06 09:21:49,018 INFO L125 PetriNetUnfolderBase]: For 8700/8864 co-relation queries the response was YES. [2025-02-06 09:21:49,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10274 conditions, 2997 events. 825/2997 cut-off events. For 8700/8864 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 25851 event pairs, 40 based on Foata normal form. 17/3003 useless extension candidates. Maximal degree in co-relation 10227. Up to 527 conditions per place. [2025-02-06 09:21:49,035 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 39 selfloop transitions, 25 changer transitions 5/295 dead transitions. [2025-02-06 09:21:49,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 295 transitions, 2338 flow [2025-02-06 09:21:49,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:49,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:49,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1123 transitions. [2025-02-06 09:21:49,036 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7782397782397782 [2025-02-06 09:21:49,036 INFO L175 Difference]: Start difference. First operand has 220 places, 279 transitions, 2104 flow. Second operand 13 states and 1123 transitions. [2025-02-06 09:21:49,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 295 transitions, 2338 flow [2025-02-06 09:21:49,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 295 transitions, 2250 flow, removed 4 selfloop flow, removed 14 redundant places. [2025-02-06 09:21:49,064 INFO L231 Difference]: Finished difference. Result has 207 places, 279 transitions, 2091 flow [2025-02-06 09:21:49,064 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2024, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2091, PETRI_PLACES=207, PETRI_TRANSITIONS=279} [2025-02-06 09:21:49,065 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 93 predicate places. [2025-02-06 09:21:49,065 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 279 transitions, 2091 flow [2025-02-06 09:21:49,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:49,065 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:49,065 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] [2025-02-06 09:21:49,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-02-06 09:21:49,066 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:49,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:49,066 INFO L85 PathProgramCache]: Analyzing trace with hash 162071462, now seen corresponding path program 17 times [2025-02-06 09:21:49,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:49,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184441447] [2025-02-06 09:21:49,066 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 09:21:49,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:49,073 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:49,076 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:21:49,076 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:21:49,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:49,283 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:49,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:49,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184441447] [2025-02-06 09:21:49,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184441447] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:49,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:49,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:49,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626854958] [2025-02-06 09:21:49,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:49,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:49,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:49,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:49,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:49,762 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:49,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 279 transitions, 2091 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:49,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:49,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:49,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:50,098 INFO L124 PetriNetUnfolderBase]: 555/2151 cut-off events. [2025-02-06 09:21:50,098 INFO L125 PetriNetUnfolderBase]: For 5617/5734 co-relation queries the response was YES. [2025-02-06 09:21:50,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7250 conditions, 2151 events. 555/2151 cut-off events. For 5617/5734 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 16973 event pairs, 27 based on Foata normal form. 10/2154 useless extension candidates. Maximal degree in co-relation 7206. Up to 358 conditions per place. [2025-02-06 09:21:50,107 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 36 selfloop transitions, 20 changer transitions 7/289 dead transitions. [2025-02-06 09:21:50,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 289 transitions, 2242 flow [2025-02-06 09:21:50,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:50,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:50,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1124 transitions. [2025-02-06 09:21:50,108 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7789327789327789 [2025-02-06 09:21:50,108 INFO L175 Difference]: Start difference. First operand has 207 places, 279 transitions, 2091 flow. Second operand 13 states and 1124 transitions. [2025-02-06 09:21:50,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 289 transitions, 2242 flow [2025-02-06 09:21:50,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 289 transitions, 2178 flow, removed 7 selfloop flow, removed 11 redundant places. [2025-02-06 09:21:50,127 INFO L231 Difference]: Finished difference. Result has 209 places, 273 transitions, 2004 flow [2025-02-06 09:21:50,127 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1977, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2004, PETRI_PLACES=209, PETRI_TRANSITIONS=273} [2025-02-06 09:21:50,128 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 95 predicate places. [2025-02-06 09:21:50,128 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 273 transitions, 2004 flow [2025-02-06 09:21:50,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:50,128 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:50,129 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] [2025-02-06 09:21:50,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-02-06 09:21:50,129 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:50,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:50,129 INFO L85 PathProgramCache]: Analyzing trace with hash 2014051008, now seen corresponding path program 18 times [2025-02-06 09:21:50,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:50,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479196845] [2025-02-06 09:21:50,129 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 09:21:50,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:50,136 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:50,138 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:21:50,138 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 09:21:50,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:50,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:50,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:50,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479196845] [2025-02-06 09:21:50,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479196845] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:50,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:50,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:50,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042885519] [2025-02-06 09:21:50,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:50,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:50,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:50,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:50,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:50,845 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:50,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 273 transitions, 2004 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:50,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:50,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:50,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:51,215 INFO L124 PetriNetUnfolderBase]: 554/2105 cut-off events. [2025-02-06 09:21:51,215 INFO L125 PetriNetUnfolderBase]: For 5290/5391 co-relation queries the response was YES. [2025-02-06 09:21:51,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7045 conditions, 2105 events. 554/2105 cut-off events. For 5290/5391 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 16513 event pairs, 26 based on Foata normal form. 14/2113 useless extension candidates. Maximal degree in co-relation 6999. Up to 348 conditions per place. [2025-02-06 09:21:51,227 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 32 selfloop transitions, 25 changer transitions 4/287 dead transitions. [2025-02-06 09:21:51,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 287 transitions, 2219 flow [2025-02-06 09:21:51,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:51,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:51,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1121 transitions. [2025-02-06 09:21:51,229 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7768537768537769 [2025-02-06 09:21:51,229 INFO L175 Difference]: Start difference. First operand has 209 places, 273 transitions, 2004 flow. Second operand 13 states and 1121 transitions. [2025-02-06 09:21:51,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 287 transitions, 2219 flow [2025-02-06 09:21:51,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 287 transitions, 2141 flow, removed 14 selfloop flow, removed 16 redundant places. [2025-02-06 09:21:51,252 INFO L231 Difference]: Finished difference. Result has 202 places, 273 transitions, 2003 flow [2025-02-06 09:21:51,252 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1944, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2003, PETRI_PLACES=202, PETRI_TRANSITIONS=273} [2025-02-06 09:21:51,252 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 88 predicate places. [2025-02-06 09:21:51,252 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 273 transitions, 2003 flow [2025-02-06 09:21:51,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:51,253 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:51,253 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] [2025-02-06 09:21:51,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-02-06 09:21:51,253 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:51,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:51,253 INFO L85 PathProgramCache]: Analyzing trace with hash -2104851088, now seen corresponding path program 19 times [2025-02-06 09:21:51,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:51,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785290065] [2025-02-06 09:21:51,253 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 09:21:51,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:51,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 09:21:51,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:21:51,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:21:51,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:51,507 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:51,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:51,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785290065] [2025-02-06 09:21:51,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785290065] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:51,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:51,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:51,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825595225] [2025-02-06 09:21:51,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:51,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:51,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:51,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:51,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:51,962 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:51,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 273 transitions, 2003 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:51,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:51,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:51,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:52,243 INFO L124 PetriNetUnfolderBase]: 281/1215 cut-off events. [2025-02-06 09:21:52,243 INFO L125 PetriNetUnfolderBase]: For 2668/2728 co-relation queries the response was YES. [2025-02-06 09:21:52,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3900 conditions, 1215 events. 281/1215 cut-off events. For 2668/2728 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 8055 event pairs, 13 based on Foata normal form. 8/1221 useless extension candidates. Maximal degree in co-relation 3858. Up to 185 conditions per place. [2025-02-06 09:21:52,248 INFO L140 encePairwiseOnDemand]: 94/111 looper letters, 27 selfloop transitions, 13 changer transitions 11/277 dead transitions. [2025-02-06 09:21:52,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 277 transitions, 2081 flow [2025-02-06 09:21:52,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:52,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:52,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1114 transitions. [2025-02-06 09:21:52,250 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.772002772002772 [2025-02-06 09:21:52,250 INFO L175 Difference]: Start difference. First operand has 202 places, 273 transitions, 2003 flow. Second operand 13 states and 1114 transitions. [2025-02-06 09:21:52,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 277 transitions, 2081 flow [2025-02-06 09:21:52,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 277 transitions, 2033 flow, removed 3 selfloop flow, removed 13 redundant places. [2025-02-06 09:21:52,261 INFO L231 Difference]: Finished difference. Result has 200 places, 258 transitions, 1844 flow [2025-02-06 09:21:52,261 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1880, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1844, PETRI_PLACES=200, PETRI_TRANSITIONS=258} [2025-02-06 09:21:52,262 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 86 predicate places. [2025-02-06 09:21:52,262 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 258 transitions, 1844 flow [2025-02-06 09:21:52,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:52,262 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:52,262 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] [2025-02-06 09:21:52,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2025-02-06 09:21:52,262 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:52,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:52,263 INFO L85 PathProgramCache]: Analyzing trace with hash 621630642, now seen corresponding path program 20 times [2025-02-06 09:21:52,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:52,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065471169] [2025-02-06 09:21:52,263 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:21:52,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:52,270 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:52,273 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:21:52,273 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:21:52,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:52,456 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:52,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:52,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065471169] [2025-02-06 09:21:52,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065471169] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:52,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:52,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:52,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892364256] [2025-02-06 09:21:52,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:52,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:52,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:52,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:52,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:52,992 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:52,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 258 transitions, 1844 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:52,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:52,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:52,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:53,233 INFO L124 PetriNetUnfolderBase]: 284/1258 cut-off events. [2025-02-06 09:21:53,233 INFO L125 PetriNetUnfolderBase]: For 2677/2720 co-relation queries the response was YES. [2025-02-06 09:21:53,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4003 conditions, 1258 events. 284/1258 cut-off events. For 2677/2720 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 8630 event pairs, 18 based on Foata normal form. 9/1265 useless extension candidates. Maximal degree in co-relation 3963. Up to 210 conditions per place. [2025-02-06 09:21:53,239 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 29 selfloop transitions, 15 changer transitions 19/287 dead transitions. [2025-02-06 09:21:53,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 287 transitions, 2179 flow [2025-02-06 09:21:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:53,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:53,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1123 transitions. [2025-02-06 09:21:53,240 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7782397782397782 [2025-02-06 09:21:53,240 INFO L175 Difference]: Start difference. First operand has 200 places, 258 transitions, 1844 flow. Second operand 13 states and 1123 transitions. [2025-02-06 09:21:53,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 287 transitions, 2179 flow [2025-02-06 09:21:53,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 287 transitions, 1982 flow, removed 4 selfloop flow, removed 18 redundant places. [2025-02-06 09:21:53,253 INFO L231 Difference]: Finished difference. Result has 185 places, 255 transitions, 1777 flow [2025-02-06 09:21:53,253 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1755, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1777, PETRI_PLACES=185, PETRI_TRANSITIONS=255} [2025-02-06 09:21:53,255 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 71 predicate places. [2025-02-06 09:21:53,255 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 255 transitions, 1777 flow [2025-02-06 09:21:53,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:53,256 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:53,256 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] [2025-02-06 09:21:53,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2025-02-06 09:21:53,256 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:53,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:53,256 INFO L85 PathProgramCache]: Analyzing trace with hash 959938304, now seen corresponding path program 21 times [2025-02-06 09:21:53,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:53,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696403577] [2025-02-06 09:21:53,256 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:21:53,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:53,264 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:53,270 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:21:53,271 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 09:21:53,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:53,712 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:53,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:53,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696403577] [2025-02-06 09:21:53,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696403577] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:53,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:53,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:53,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439659263] [2025-02-06 09:21:53,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:53,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:53,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:53,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:53,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:54,193 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:54,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 255 transitions, 1777 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:54,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:54,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:54,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:54,543 INFO L124 PetriNetUnfolderBase]: 527/1966 cut-off events. [2025-02-06 09:21:54,543 INFO L125 PetriNetUnfolderBase]: For 3869/3970 co-relation queries the response was YES. [2025-02-06 09:21:54,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6236 conditions, 1966 events. 527/1966 cut-off events. For 3869/3970 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 15096 event pairs, 21 based on Foata normal form. 11/1972 useless extension candidates. Maximal degree in co-relation 6198. Up to 341 conditions per place. [2025-02-06 09:21:54,552 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 28 selfloop transitions, 22 changer transitions 2/276 dead transitions. [2025-02-06 09:21:54,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 276 transitions, 1978 flow [2025-02-06 09:21:54,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:54,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:54,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1117 transitions. [2025-02-06 09:21:54,554 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.774081774081774 [2025-02-06 09:21:54,554 INFO L175 Difference]: Start difference. First operand has 185 places, 255 transitions, 1777 flow. Second operand 13 states and 1117 transitions. [2025-02-06 09:21:54,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 276 transitions, 1978 flow [2025-02-06 09:21:54,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 276 transitions, 1912 flow, removed 6 selfloop flow, removed 12 redundant places. [2025-02-06 09:21:54,568 INFO L231 Difference]: Finished difference. Result has 185 places, 261 transitions, 1837 flow [2025-02-06 09:21:54,568 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1738, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1837, PETRI_PLACES=185, PETRI_TRANSITIONS=261} [2025-02-06 09:21:54,569 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 71 predicate places. [2025-02-06 09:21:54,569 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 261 transitions, 1837 flow [2025-02-06 09:21:54,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:54,569 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:54,569 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] [2025-02-06 09:21:54,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2025-02-06 09:21:54,569 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:54,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:54,572 INFO L85 PathProgramCache]: Analyzing trace with hash 2090230595, now seen corresponding path program 10 times [2025-02-06 09:21:54,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:54,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682303606] [2025-02-06 09:21:54,573 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 09:21:54,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:54,579 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:54,587 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:21:54,587 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 09:21:54,587 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:55,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:55,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:55,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682303606] [2025-02-06 09:21:55,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682303606] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:55,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:55,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:55,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045703691] [2025-02-06 09:21:55,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:55,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:55,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:55,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:55,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:55,431 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:55,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 261 transitions, 1837 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:55,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:55,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:55,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:55,790 INFO L124 PetriNetUnfolderBase]: 800/2898 cut-off events. [2025-02-06 09:21:55,790 INFO L125 PetriNetUnfolderBase]: For 6179/6307 co-relation queries the response was YES. [2025-02-06 09:21:55,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9435 conditions, 2898 events. 800/2898 cut-off events. For 6179/6307 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 24832 event pairs, 36 based on Foata normal form. 16/2908 useless extension candidates. Maximal degree in co-relation 9397. Up to 536 conditions per place. [2025-02-06 09:21:55,806 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 39 selfloop transitions, 20 changer transitions 7/290 dead transitions. [2025-02-06 09:21:55,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 290 transitions, 2133 flow [2025-02-06 09:21:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:55,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:55,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1121 transitions. [2025-02-06 09:21:55,807 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7768537768537769 [2025-02-06 09:21:55,807 INFO L175 Difference]: Start difference. First operand has 185 places, 261 transitions, 1837 flow. Second operand 13 states and 1121 transitions. [2025-02-06 09:21:55,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 290 transitions, 2133 flow [2025-02-06 09:21:55,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 290 transitions, 2076 flow, removed 2 selfloop flow, removed 9 redundant places. [2025-02-06 09:21:55,832 INFO L231 Difference]: Finished difference. Result has 192 places, 267 transitions, 1914 flow [2025-02-06 09:21:55,833 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1806, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1914, PETRI_PLACES=192, PETRI_TRANSITIONS=267} [2025-02-06 09:21:55,834 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 78 predicate places. [2025-02-06 09:21:55,834 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 267 transitions, 1914 flow [2025-02-06 09:21:55,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:55,834 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:55,834 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] [2025-02-06 09:21:55,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2025-02-06 09:21:55,834 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:55,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:55,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1851275793, now seen corresponding path program 11 times [2025-02-06 09:21:55,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:55,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468948788] [2025-02-06 09:21:55,835 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 09:21:55,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:55,843 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:55,846 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:21:55,846 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:21:55,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:56,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:56,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468948788] [2025-02-06 09:21:56,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468948788] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:56,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:56,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:56,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479589164] [2025-02-06 09:21:56,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:56,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:56,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:56,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:56,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:56,514 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:56,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 267 transitions, 1914 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:56,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:56,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:56,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:56,994 INFO L124 PetriNetUnfolderBase]: 1066/3727 cut-off events. [2025-02-06 09:21:56,994 INFO L125 PetriNetUnfolderBase]: For 8830/9056 co-relation queries the response was YES. [2025-02-06 09:21:57,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12382 conditions, 3727 events. 1066/3727 cut-off events. For 8830/9056 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 33725 event pairs, 44 based on Foata normal form. 18/3736 useless extension candidates. Maximal degree in co-relation 12340. Up to 687 conditions per place. [2025-02-06 09:21:57,016 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 35 selfloop transitions, 27 changer transitions 3/289 dead transitions. [2025-02-06 09:21:57,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 289 transitions, 2193 flow [2025-02-06 09:21:57,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:57,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:57,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1121 transitions. [2025-02-06 09:21:57,019 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7768537768537769 [2025-02-06 09:21:57,019 INFO L175 Difference]: Start difference. First operand has 192 places, 267 transitions, 1914 flow. Second operand 13 states and 1121 transitions. [2025-02-06 09:21:57,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 289 transitions, 2193 flow [2025-02-06 09:21:57,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 289 transitions, 2141 flow, removed 8 selfloop flow, removed 9 redundant places. [2025-02-06 09:21:57,050 INFO L231 Difference]: Finished difference. Result has 198 places, 275 transitions, 2029 flow [2025-02-06 09:21:57,050 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1878, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2029, PETRI_PLACES=198, PETRI_TRANSITIONS=275} [2025-02-06 09:21:57,051 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 84 predicate places. [2025-02-06 09:21:57,051 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 275 transitions, 2029 flow [2025-02-06 09:21:57,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:57,051 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:57,051 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] [2025-02-06 09:21:57,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2025-02-06 09:21:57,051 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:57,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:57,052 INFO L85 PathProgramCache]: Analyzing trace with hash 139479201, now seen corresponding path program 12 times [2025-02-06 09:21:57,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:57,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968146472] [2025-02-06 09:21:57,052 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 09:21:57,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:57,058 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:57,060 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:21:57,061 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 09:21:57,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:57,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:57,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:57,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968146472] [2025-02-06 09:21:57,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968146472] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:57,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:57,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:57,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787850349] [2025-02-06 09:21:57,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:57,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:57,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:57,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:57,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:58,043 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:58,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 275 transitions, 2029 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:58,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:58,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:58,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:58,581 INFO L124 PetriNetUnfolderBase]: 1341/4672 cut-off events. [2025-02-06 09:21:58,581 INFO L125 PetriNetUnfolderBase]: For 12021/12302 co-relation queries the response was YES. [2025-02-06 09:21:58,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15860 conditions, 4672 events. 1341/4672 cut-off events. For 12021/12302 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 44380 event pairs, 66 based on Foata normal form. 23/4684 useless extension candidates. Maximal degree in co-relation 15815. Up to 865 conditions per place. [2025-02-06 09:21:58,603 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 50 selfloop transitions, 25 changer transitions 6/305 dead transitions. [2025-02-06 09:21:58,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 305 transitions, 2414 flow [2025-02-06 09:21:58,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:58,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:58,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1127 transitions. [2025-02-06 09:21:58,604 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.781011781011781 [2025-02-06 09:21:58,605 INFO L175 Difference]: Start difference. First operand has 198 places, 275 transitions, 2029 flow. Second operand 13 states and 1127 transitions. [2025-02-06 09:21:58,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 305 transitions, 2414 flow [2025-02-06 09:21:58,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 305 transitions, 2357 flow, removed 8 selfloop flow, removed 8 redundant places. [2025-02-06 09:21:58,639 INFO L231 Difference]: Finished difference. Result has 207 places, 282 transitions, 2141 flow [2025-02-06 09:21:58,639 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1985, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2141, PETRI_PLACES=207, PETRI_TRANSITIONS=282} [2025-02-06 09:21:58,639 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 93 predicate places. [2025-02-06 09:21:58,640 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 282 transitions, 2141 flow [2025-02-06 09:21:58,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:58,640 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:58,640 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] [2025-02-06 09:21:58,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2025-02-06 09:21:58,640 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:58,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:58,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1530199231, now seen corresponding path program 13 times [2025-02-06 09:21:58,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:58,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139733790] [2025-02-06 09:21:58,641 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 09:21:58,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:58,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 09:21:58,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:21:58,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:21:58,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:21:58,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:21:58,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:21:58,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139733790] [2025-02-06 09:21:58,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139733790] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:21:58,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:21:58,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:21:58,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112344632] [2025-02-06 09:21:58,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:21:58,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:21:58,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:21:58,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:21:58,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:21:59,310 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:21:59,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 282 transitions, 2141 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:59,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:21:59,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:21:59,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:21:59,886 INFO L124 PetriNetUnfolderBase]: 1339/4696 cut-off events. [2025-02-06 09:21:59,886 INFO L125 PetriNetUnfolderBase]: For 12641/12891 co-relation queries the response was YES. [2025-02-06 09:21:59,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16095 conditions, 4696 events. 1339/4696 cut-off events. For 12641/12891 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 44774 event pairs, 58 based on Foata normal form. 30/4716 useless extension candidates. Maximal degree in co-relation 16045. Up to 883 conditions per place. [2025-02-06 09:21:59,914 INFO L140 encePairwiseOnDemand]: 91/111 looper letters, 47 selfloop transitions, 29 changer transitions 10/308 dead transitions. [2025-02-06 09:21:59,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 308 transitions, 2517 flow [2025-02-06 09:21:59,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:21:59,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:21:59,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1120 transitions. [2025-02-06 09:21:59,916 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7761607761607762 [2025-02-06 09:21:59,916 INFO L175 Difference]: Start difference. First operand has 207 places, 282 transitions, 2141 flow. Second operand 13 states and 1120 transitions. [2025-02-06 09:21:59,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 308 transitions, 2517 flow [2025-02-06 09:21:59,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 308 transitions, 2446 flow, removed 22 selfloop flow, removed 8 redundant places. [2025-02-06 09:21:59,957 INFO L231 Difference]: Finished difference. Result has 214 places, 281 transitions, 2175 flow [2025-02-06 09:21:59,957 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2089, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2175, PETRI_PLACES=214, PETRI_TRANSITIONS=281} [2025-02-06 09:21:59,957 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 100 predicate places. [2025-02-06 09:21:59,957 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 281 transitions, 2175 flow [2025-02-06 09:21:59,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:21:59,958 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:21:59,958 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] [2025-02-06 09:21:59,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2025-02-06 09:21:59,958 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:21:59,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:21:59,958 INFO L85 PathProgramCache]: Analyzing trace with hash 955716775, now seen corresponding path program 14 times [2025-02-06 09:21:59,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:21:59,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412351035] [2025-02-06 09:21:59,959 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:21:59,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:21:59,965 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:21:59,967 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:21:59,967 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:21:59,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:00,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:00,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:00,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412351035] [2025-02-06 09:22:00,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412351035] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:00,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:00,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:22:00,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650148313] [2025-02-06 09:22:00,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:00,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:22:00,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:00,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:22:00,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:22:00,568 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:22:00,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 281 transitions, 2175 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:00,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:00,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:22:00,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:01,184 INFO L124 PetriNetUnfolderBase]: 1331/4559 cut-off events. [2025-02-06 09:22:01,184 INFO L125 PetriNetUnfolderBase]: For 13092/13364 co-relation queries the response was YES. [2025-02-06 09:22:01,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15830 conditions, 4559 events. 1331/4559 cut-off events. For 13092/13364 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 43116 event pairs, 60 based on Foata normal form. 21/4570 useless extension candidates. Maximal degree in co-relation 15777. Up to 837 conditions per place. [2025-02-06 09:22:01,209 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 43 selfloop transitions, 28 changer transitions 1/294 dead transitions. [2025-02-06 09:22:01,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 294 transitions, 2443 flow [2025-02-06 09:22:01,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:22:01,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:22:01,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1122 transitions. [2025-02-06 09:22:01,213 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7775467775467776 [2025-02-06 09:22:01,213 INFO L175 Difference]: Start difference. First operand has 214 places, 281 transitions, 2175 flow. Second operand 13 states and 1122 transitions. [2025-02-06 09:22:01,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 294 transitions, 2443 flow [2025-02-06 09:22:01,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 294 transitions, 2310 flow, removed 27 selfloop flow, removed 13 redundant places. [2025-02-06 09:22:01,253 INFO L231 Difference]: Finished difference. Result has 215 places, 286 transitions, 2205 flow [2025-02-06 09:22:01,253 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2074, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2205, PETRI_PLACES=215, PETRI_TRANSITIONS=286} [2025-02-06 09:22:01,253 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 101 predicate places. [2025-02-06 09:22:01,254 INFO L471 AbstractCegarLoop]: Abstraction has has 215 places, 286 transitions, 2205 flow [2025-02-06 09:22:01,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:01,254 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:01,254 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] [2025-02-06 09:22:01,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2025-02-06 09:22:01,254 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:01,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:01,255 INFO L85 PathProgramCache]: Analyzing trace with hash -2101967199, now seen corresponding path program 15 times [2025-02-06 09:22:01,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:01,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157167721] [2025-02-06 09:22:01,255 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:22:01,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:01,264 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:22:01,266 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:22:01,266 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 09:22:01,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:01,509 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:01,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:01,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157167721] [2025-02-06 09:22:01,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157167721] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:01,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:01,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:22:01,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304424622] [2025-02-06 09:22:01,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:01,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:22:01,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:01,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:22:01,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:22:02,023 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:22:02,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 286 transitions, 2205 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:02,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:02,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:22:02,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:02,698 INFO L124 PetriNetUnfolderBase]: 1597/5433 cut-off events. [2025-02-06 09:22:02,699 INFO L125 PetriNetUnfolderBase]: For 15567/15844 co-relation queries the response was YES. [2025-02-06 09:22:02,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18781 conditions, 5433 events. 1597/5433 cut-off events. For 15567/15844 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 53456 event pairs, 71 based on Foata normal form. 21/5442 useless extension candidates. Maximal degree in co-relation 18728. Up to 1018 conditions per place. [2025-02-06 09:22:02,727 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 50 selfloop transitions, 28 changer transitions 5/305 dead transitions. [2025-02-06 09:22:02,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 305 transitions, 2561 flow [2025-02-06 09:22:02,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:22:02,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:22:02,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1123 transitions. [2025-02-06 09:22:02,729 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7782397782397782 [2025-02-06 09:22:02,729 INFO L175 Difference]: Start difference. First operand has 215 places, 286 transitions, 2205 flow. Second operand 13 states and 1123 transitions. [2025-02-06 09:22:02,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 305 transitions, 2561 flow [2025-02-06 09:22:02,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 305 transitions, 2461 flow, removed 32 selfloop flow, removed 8 redundant places. [2025-02-06 09:22:02,823 INFO L231 Difference]: Finished difference. Result has 222 places, 292 transitions, 2291 flow [2025-02-06 09:22:02,823 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2144, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2291, PETRI_PLACES=222, PETRI_TRANSITIONS=292} [2025-02-06 09:22:02,824 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 108 predicate places. [2025-02-06 09:22:02,824 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 292 transitions, 2291 flow [2025-02-06 09:22:02,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:02,824 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:02,825 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] [2025-02-06 09:22:02,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2025-02-06 09:22:02,825 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:02,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:02,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1155783291, now seen corresponding path program 16 times [2025-02-06 09:22:02,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:02,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237428178] [2025-02-06 09:22:02,825 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 09:22:02,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:02,836 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:22:02,839 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:22:02,840 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 09:22:02,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:03,154 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:03,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:03,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237428178] [2025-02-06 09:22:03,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237428178] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:03,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:03,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-02-06 09:22:03,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808369995] [2025-02-06 09:22:03,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:03,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-06 09:22:03,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:03,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-06 09:22:03,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2025-02-06 09:22:03,619 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 111 [2025-02-06 09:22:03,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 292 transitions, 2291 flow. Second operand has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-02-06 09:22:03,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:03,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 111 [2025-02-06 09:22:03,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:05,073 INFO L124 PetriNetUnfolderBase]: 2470/7497 cut-off events. [2025-02-06 09:22:05,074 INFO L125 PetriNetUnfolderBase]: For 31928/32597 co-relation queries the response was YES. [2025-02-06 09:22:05,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29963 conditions, 7497 events. 2470/7497 cut-off events. For 31928/32597 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 73754 event pairs, 313 based on Foata normal form. 153/7602 useless extension candidates. Maximal degree in co-relation 29907. Up to 1381 conditions per place. [2025-02-06 09:22:05,111 INFO L140 encePairwiseOnDemand]: 88/111 looper letters, 567 selfloop transitions, 137 changer transitions 30/826 dead transitions. [2025-02-06 09:22:05,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 826 transitions, 8775 flow [2025-02-06 09:22:05,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-06 09:22:05,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-02-06 09:22:05,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1652 transitions. [2025-02-06 09:22:05,113 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7441441441441441 [2025-02-06 09:22:05,113 INFO L175 Difference]: Start difference. First operand has 222 places, 292 transitions, 2291 flow. Second operand 20 states and 1652 transitions. [2025-02-06 09:22:05,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 826 transitions, 8775 flow [2025-02-06 09:22:05,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 826 transitions, 8721 flow, removed 5 selfloop flow, removed 9 redundant places. [2025-02-06 09:22:05,190 INFO L231 Difference]: Finished difference. Result has 241 places, 397 transitions, 4039 flow [2025-02-06 09:22:05,190 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2249, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4039, PETRI_PLACES=241, PETRI_TRANSITIONS=397} [2025-02-06 09:22:05,191 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 127 predicate places. [2025-02-06 09:22:05,191 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 397 transitions, 4039 flow [2025-02-06 09:22:05,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-02-06 09:22:05,191 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:05,191 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] [2025-02-06 09:22:05,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2025-02-06 09:22:05,192 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:05,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:05,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1847820493, now seen corresponding path program 17 times [2025-02-06 09:22:05,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:05,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002154003] [2025-02-06 09:22:05,192 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 09:22:05,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:05,199 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:22:05,202 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:22:05,202 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:22:05,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:05,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:05,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:05,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002154003] [2025-02-06 09:22:05,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002154003] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:05,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:05,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:22:05,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662873985] [2025-02-06 09:22:05,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:05,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:22:05,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:05,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:22:05,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:22:06,132 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:22:06,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 397 transitions, 4039 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:06,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:06,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:22:06,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:06,958 INFO L124 PetriNetUnfolderBase]: 1637/5587 cut-off events. [2025-02-06 09:22:06,958 INFO L125 PetriNetUnfolderBase]: For 20402/20719 co-relation queries the response was YES. [2025-02-06 09:22:06,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20563 conditions, 5587 events. 1637/5587 cut-off events. For 20402/20719 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 55236 event pairs, 70 based on Foata normal form. 21/5595 useless extension candidates. Maximal degree in co-relation 20498. Up to 1047 conditions per place. [2025-02-06 09:22:07,007 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 56 selfloop transitions, 24 changer transitions 9/404 dead transitions. [2025-02-06 09:22:07,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 404 transitions, 4241 flow [2025-02-06 09:22:07,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:22:07,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:22:07,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1119 transitions. [2025-02-06 09:22:07,009 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7754677754677755 [2025-02-06 09:22:07,009 INFO L175 Difference]: Start difference. First operand has 241 places, 397 transitions, 4039 flow. Second operand 13 states and 1119 transitions. [2025-02-06 09:22:07,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 404 transitions, 4241 flow [2025-02-06 09:22:07,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 404 transitions, 4145 flow, removed 17 selfloop flow, removed 7 redundant places. [2025-02-06 09:22:07,119 INFO L231 Difference]: Finished difference. Result has 248 places, 391 transitions, 3914 flow [2025-02-06 09:22:07,119 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3881, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3914, PETRI_PLACES=248, PETRI_TRANSITIONS=391} [2025-02-06 09:22:07,119 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 134 predicate places. [2025-02-06 09:22:07,120 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 391 transitions, 3914 flow [2025-02-06 09:22:07,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:07,120 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:07,120 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] [2025-02-06 09:22:07,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2025-02-06 09:22:07,120 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:07,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:07,121 INFO L85 PathProgramCache]: Analyzing trace with hash 142085287, now seen corresponding path program 18 times [2025-02-06 09:22:07,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:07,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676637889] [2025-02-06 09:22:07,121 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 09:22:07,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:07,132 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:22:07,136 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:22:07,136 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 09:22:07,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:07,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:07,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676637889] [2025-02-06 09:22:07,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676637889] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:07,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:07,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:22:07,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624307294] [2025-02-06 09:22:07,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:07,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:22:07,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:07,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:22:07,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:22:07,732 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:22:07,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 391 transitions, 3914 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:07,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:07,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:22:07,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:08,419 INFO L124 PetriNetUnfolderBase]: 1636/5529 cut-off events. [2025-02-06 09:22:08,419 INFO L125 PetriNetUnfolderBase]: For 19376/19676 co-relation queries the response was YES. [2025-02-06 09:22:08,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20109 conditions, 5529 events. 1636/5529 cut-off events. For 19376/19676 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 54512 event pairs, 70 based on Foata normal form. 29/5546 useless extension candidates. Maximal degree in co-relation 20043. Up to 1040 conditions per place. [2025-02-06 09:22:08,472 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 46 selfloop transitions, 35 changer transitions 5/399 dead transitions. [2025-02-06 09:22:08,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 399 transitions, 4174 flow [2025-02-06 09:22:08,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:22:08,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:22:08,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1122 transitions. [2025-02-06 09:22:08,473 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7775467775467776 [2025-02-06 09:22:08,473 INFO L175 Difference]: Start difference. First operand has 248 places, 391 transitions, 3914 flow. Second operand 13 states and 1122 transitions. [2025-02-06 09:22:08,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 399 transitions, 4174 flow [2025-02-06 09:22:08,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 399 transitions, 4084 flow, removed 16 selfloop flow, removed 15 redundant places. [2025-02-06 09:22:08,572 INFO L231 Difference]: Finished difference. Result has 244 places, 390 transitions, 3939 flow [2025-02-06 09:22:08,572 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3845, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3939, PETRI_PLACES=244, PETRI_TRANSITIONS=390} [2025-02-06 09:22:08,573 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 130 predicate places. [2025-02-06 09:22:08,573 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 390 transitions, 3939 flow [2025-02-06 09:22:08,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:08,575 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:08,575 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] [2025-02-06 09:22:08,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2025-02-06 09:22:08,575 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:08,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:08,576 INFO L85 PathProgramCache]: Analyzing trace with hash 2080706719, now seen corresponding path program 19 times [2025-02-06 09:22:08,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:08,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005872499] [2025-02-06 09:22:08,576 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 09:22:08,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:08,582 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 09:22:08,585 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:22:08,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:22:08,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:08,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:08,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:08,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005872499] [2025-02-06 09:22:08,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005872499] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:08,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:08,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:22:08,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60011590] [2025-02-06 09:22:08,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:08,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:22:08,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:08,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:22:08,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:22:09,184 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:22:09,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 390 transitions, 3939 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:09,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:09,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:22:09,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:09,777 INFO L124 PetriNetUnfolderBase]: 1368/4716 cut-off events. [2025-02-06 09:22:09,778 INFO L125 PetriNetUnfolderBase]: For 16255/16514 co-relation queries the response was YES. [2025-02-06 09:22:09,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17192 conditions, 4716 events. 1368/4716 cut-off events. For 16255/16514 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 44861 event pairs, 60 based on Foata normal form. 17/4723 useless extension candidates. Maximal degree in co-relation 17127. Up to 875 conditions per place. [2025-02-06 09:22:09,811 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 46 selfloop transitions, 27 changer transitions 8/375 dead transitions. [2025-02-06 09:22:09,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 375 transitions, 3786 flow [2025-02-06 09:22:09,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:22:09,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:22:09,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1123 transitions. [2025-02-06 09:22:09,812 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7782397782397782 [2025-02-06 09:22:09,812 INFO L175 Difference]: Start difference. First operand has 244 places, 390 transitions, 3939 flow. Second operand 13 states and 1123 transitions. [2025-02-06 09:22:09,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 375 transitions, 3786 flow [2025-02-06 09:22:09,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 375 transitions, 3724 flow, removed 8 selfloop flow, removed 9 redundant places. [2025-02-06 09:22:09,874 INFO L231 Difference]: Finished difference. Result has 246 places, 365 transitions, 3523 flow [2025-02-06 09:22:09,874 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=3526, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3523, PETRI_PLACES=246, PETRI_TRANSITIONS=365} [2025-02-06 09:22:09,875 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 132 predicate places. [2025-02-06 09:22:09,875 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 365 transitions, 3523 flow [2025-02-06 09:22:09,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:09,875 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:09,875 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] [2025-02-06 09:22:09,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2025-02-06 09:22:09,875 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:09,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:09,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1884905935, now seen corresponding path program 20 times [2025-02-06 09:22:09,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:09,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391533350] [2025-02-06 09:22:09,876 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:22:09,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:09,882 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:22:09,884 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:22:09,884 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:22:09,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:10,068 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:10,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:10,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391533350] [2025-02-06 09:22:10,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391533350] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:10,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:10,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:22:10,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213083703] [2025-02-06 09:22:10,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:10,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:22:10,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:10,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:22:10,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:22:10,592 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:22:10,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 365 transitions, 3523 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:10,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:10,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:22:10,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:11,149 INFO L124 PetriNetUnfolderBase]: 1059/3749 cut-off events. [2025-02-06 09:22:11,149 INFO L125 PetriNetUnfolderBase]: For 11924/12125 co-relation queries the response was YES. [2025-02-06 09:22:11,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13386 conditions, 3749 events. 1059/3749 cut-off events. For 11924/12125 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 34017 event pairs, 51 based on Foata normal form. 14/3755 useless extension candidates. Maximal degree in co-relation 13321. Up to 675 conditions per place. [2025-02-06 09:22:11,164 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 37 selfloop transitions, 19 changer transitions 9/308 dead transitions. [2025-02-06 09:22:11,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 308 transitions, 2793 flow [2025-02-06 09:22:11,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:22:11,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:22:11,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1115 transitions. [2025-02-06 09:22:11,166 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7726957726957727 [2025-02-06 09:22:11,166 INFO L175 Difference]: Start difference. First operand has 246 places, 365 transitions, 3523 flow. Second operand 13 states and 1115 transitions. [2025-02-06 09:22:11,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 308 transitions, 2793 flow [2025-02-06 09:22:11,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 308 transitions, 2660 flow, removed 38 selfloop flow, removed 22 redundant places. [2025-02-06 09:22:11,205 INFO L231 Difference]: Finished difference. Result has 228 places, 298 transitions, 2472 flow [2025-02-06 09:22:11,205 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2530, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2472, PETRI_PLACES=228, PETRI_TRANSITIONS=298} [2025-02-06 09:22:11,205 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 114 predicate places. [2025-02-06 09:22:11,205 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 298 transitions, 2472 flow [2025-02-06 09:22:11,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:11,206 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:11,206 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] [2025-02-06 09:22:11,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2025-02-06 09:22:11,206 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:11,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:11,206 INFO L85 PathProgramCache]: Analyzing trace with hash -99169261, now seen corresponding path program 21 times [2025-02-06 09:22:11,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:11,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984349911] [2025-02-06 09:22:11,207 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:22:11,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:11,214 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:22:11,216 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:22:11,216 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 09:22:11,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:11,371 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:11,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:11,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984349911] [2025-02-06 09:22:11,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984349911] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:11,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:11,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:22:11,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879398705] [2025-02-06 09:22:11,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:11,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:22:11,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:11,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:22:11,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:22:11,912 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:22:11,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 298 transitions, 2472 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:11,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:11,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:22:11,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:12,351 INFO L124 PetriNetUnfolderBase]: 791/2892 cut-off events. [2025-02-06 09:22:12,351 INFO L125 PetriNetUnfolderBase]: For 7854/7994 co-relation queries the response was YES. [2025-02-06 09:22:12,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9906 conditions, 2892 events. 791/2892 cut-off events. For 7854/7994 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 24813 event pairs, 32 based on Foata normal form. 12/2898 useless extension candidates. Maximal degree in co-relation 9851. Up to 514 conditions per place. [2025-02-06 09:22:12,362 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 35 selfloop transitions, 22 changer transitions 8/308 dead transitions. [2025-02-06 09:22:12,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 308 transitions, 2645 flow [2025-02-06 09:22:12,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:22:12,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:22:12,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1111 transitions. [2025-02-06 09:22:12,364 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7699237699237699 [2025-02-06 09:22:12,364 INFO L175 Difference]: Start difference. First operand has 228 places, 298 transitions, 2472 flow. Second operand 13 states and 1111 transitions. [2025-02-06 09:22:12,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 308 transitions, 2645 flow [2025-02-06 09:22:12,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 308 transitions, 2557 flow, removed 16 selfloop flow, removed 17 redundant places. [2025-02-06 09:22:12,389 INFO L231 Difference]: Finished difference. Result has 214 places, 292 transitions, 2373 flow [2025-02-06 09:22:12,389 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2349, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2373, PETRI_PLACES=214, PETRI_TRANSITIONS=292} [2025-02-06 09:22:12,390 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 100 predicate places. [2025-02-06 09:22:12,390 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 292 transitions, 2373 flow [2025-02-06 09:22:12,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:12,390 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:12,390 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] [2025-02-06 09:22:12,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2025-02-06 09:22:12,390 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:12,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:12,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1241921901, now seen corresponding path program 22 times [2025-02-06 09:22:12,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:12,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514974161] [2025-02-06 09:22:12,391 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 09:22:12,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:12,410 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:22:12,415 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:22:12,415 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 09:22:12,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:12,684 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:12,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:12,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514974161] [2025-02-06 09:22:12,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514974161] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:12,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:12,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:22:12,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665900635] [2025-02-06 09:22:12,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:12,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:22:12,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:12,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:22:12,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:22:13,088 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:22:13,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 292 transitions, 2373 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:13,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:13,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:22:13,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:13,528 INFO L124 PetriNetUnfolderBase]: 793/2835 cut-off events. [2025-02-06 09:22:13,529 INFO L125 PetriNetUnfolderBase]: For 7566/7716 co-relation queries the response was YES. [2025-02-06 09:22:13,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9613 conditions, 2835 events. 793/2835 cut-off events. For 7566/7716 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 24162 event pairs, 35 based on Foata normal form. 13/2842 useless extension candidates. Maximal degree in co-relation 9564. Up to 514 conditions per place. [2025-02-06 09:22:13,539 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 29 selfloop transitions, 24 changer transitions 7/301 dead transitions. [2025-02-06 09:22:13,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 301 transitions, 2548 flow [2025-02-06 09:22:13,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:22:13,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:22:13,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1114 transitions. [2025-02-06 09:22:13,540 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.772002772002772 [2025-02-06 09:22:13,540 INFO L175 Difference]: Start difference. First operand has 214 places, 292 transitions, 2373 flow. Second operand 13 states and 1114 transitions. [2025-02-06 09:22:13,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 301 transitions, 2548 flow [2025-02-06 09:22:13,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 301 transitions, 2465 flow, removed 8 selfloop flow, removed 16 redundant places. [2025-02-06 09:22:13,581 INFO L231 Difference]: Finished difference. Result has 207 places, 289 transitions, 2322 flow [2025-02-06 09:22:13,581 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2298, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2322, PETRI_PLACES=207, PETRI_TRANSITIONS=289} [2025-02-06 09:22:13,581 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 93 predicate places. [2025-02-06 09:22:13,581 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 289 transitions, 2322 flow [2025-02-06 09:22:13,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:13,582 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:13,582 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] [2025-02-06 09:22:13,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2025-02-06 09:22:13,582 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:13,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:13,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1896386003, now seen corresponding path program 23 times [2025-02-06 09:22:13,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:13,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454679965] [2025-02-06 09:22:13,583 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 09:22:13,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:13,590 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:22:13,592 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:22:13,592 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:22:13,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:13,788 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:13,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:13,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454679965] [2025-02-06 09:22:13,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454679965] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:13,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:13,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:22:13,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431353311] [2025-02-06 09:22:13,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:13,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:22:13,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:13,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:22:13,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:22:14,313 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:22:14,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 289 transitions, 2322 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:14,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:14,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:22:14,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:14,707 INFO L124 PetriNetUnfolderBase]: 790/2853 cut-off events. [2025-02-06 09:22:14,708 INFO L125 PetriNetUnfolderBase]: For 7496/7646 co-relation queries the response was YES. [2025-02-06 09:22:14,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9607 conditions, 2853 events. 790/2853 cut-off events. For 7496/7646 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 24408 event pairs, 36 based on Foata normal form. 10/2857 useless extension candidates. Maximal degree in co-relation 9562. Up to 516 conditions per place. [2025-02-06 09:22:14,718 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 30 selfloop transitions, 21 changer transitions 6/298 dead transitions. [2025-02-06 09:22:14,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 298 transitions, 2491 flow [2025-02-06 09:22:14,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:22:14,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:22:14,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1115 transitions. [2025-02-06 09:22:14,719 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7726957726957727 [2025-02-06 09:22:14,720 INFO L175 Difference]: Start difference. First operand has 207 places, 289 transitions, 2322 flow. Second operand 13 states and 1115 transitions. [2025-02-06 09:22:14,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 298 transitions, 2491 flow [2025-02-06 09:22:14,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 298 transitions, 2440 flow, removed 3 selfloop flow, removed 11 redundant places. [2025-02-06 09:22:14,744 INFO L231 Difference]: Finished difference. Result has 210 places, 289 transitions, 2331 flow [2025-02-06 09:22:14,744 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2276, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2331, PETRI_PLACES=210, PETRI_TRANSITIONS=289} [2025-02-06 09:22:14,745 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 96 predicate places. [2025-02-06 09:22:14,745 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 289 transitions, 2331 flow [2025-02-06 09:22:14,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:14,745 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:14,745 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] [2025-02-06 09:22:14,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2025-02-06 09:22:14,745 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:14,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:14,746 INFO L85 PathProgramCache]: Analyzing trace with hash 142085077, now seen corresponding path program 24 times [2025-02-06 09:22:14,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:14,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680817455] [2025-02-06 09:22:14,746 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 09:22:14,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:14,754 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:22:14,756 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:22:14,756 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 09:22:14,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:15,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:15,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:15,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680817455] [2025-02-06 09:22:15,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680817455] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:15,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:15,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:22:15,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424876299] [2025-02-06 09:22:15,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:15,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:22:15,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:15,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:22:15,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:22:15,532 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:22:15,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 289 transitions, 2331 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:15,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:15,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:22:15,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:15,865 INFO L124 PetriNetUnfolderBase]: 525/2012 cut-off events. [2025-02-06 09:22:15,865 INFO L125 PetriNetUnfolderBase]: For 4876/4983 co-relation queries the response was YES. [2025-02-06 09:22:15,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6654 conditions, 2012 events. 525/2012 cut-off events. For 4876/4983 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 15605 event pairs, 25 based on Foata normal form. 7/2015 useless extension candidates. Maximal degree in co-relation 6607. Up to 348 conditions per place. [2025-02-06 09:22:15,875 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 23 selfloop transitions, 15 changer transitions 15/275 dead transitions. [2025-02-06 09:22:15,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 275 transitions, 2141 flow [2025-02-06 09:22:15,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:22:15,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:22:15,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1110 transitions. [2025-02-06 09:22:15,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7692307692307693 [2025-02-06 09:22:15,876 INFO L175 Difference]: Start difference. First operand has 210 places, 289 transitions, 2331 flow. Second operand 13 states and 1110 transitions. [2025-02-06 09:22:15,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 275 transitions, 2141 flow [2025-02-06 09:22:15,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 275 transitions, 2088 flow, removed 7 selfloop flow, removed 11 redundant places. [2025-02-06 09:22:15,894 INFO L231 Difference]: Finished difference. Result has 209 places, 259 transitions, 1881 flow [2025-02-06 09:22:15,894 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1937, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1881, PETRI_PLACES=209, PETRI_TRANSITIONS=259} [2025-02-06 09:22:15,895 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 95 predicate places. [2025-02-06 09:22:15,895 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 259 transitions, 1881 flow [2025-02-06 09:22:15,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:15,895 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:15,895 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] [2025-02-06 09:22:15,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2025-02-06 09:22:15,895 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:15,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:15,896 INFO L85 PathProgramCache]: Analyzing trace with hash 2005159373, now seen corresponding path program 25 times [2025-02-06 09:22:15,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:15,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756235869] [2025-02-06 09:22:15,896 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 09:22:15,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:15,903 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 09:22:15,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:22:15,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:22:15,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:16,101 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:16,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:16,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756235869] [2025-02-06 09:22:16,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756235869] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:16,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:16,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:22:16,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508965424] [2025-02-06 09:22:16,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:16,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:22:16,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:16,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:22:16,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:22:16,571 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:22:16,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 259 transitions, 1881 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:16,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:16,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:22:16,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:16,941 INFO L124 PetriNetUnfolderBase]: 774/2736 cut-off events. [2025-02-06 09:22:16,941 INFO L125 PetriNetUnfolderBase]: For 6629/6769 co-relation queries the response was YES. [2025-02-06 09:22:16,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9037 conditions, 2736 events. 774/2736 cut-off events. For 6629/6769 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 23348 event pairs, 30 based on Foata normal form. 13/2743 useless extension candidates. Maximal degree in co-relation 8991. Up to 504 conditions per place. [2025-02-06 09:22:16,955 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 26 selfloop transitions, 25 changer transitions 1/274 dead transitions. [2025-02-06 09:22:16,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 274 transitions, 2069 flow [2025-02-06 09:22:16,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:22:16,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:22:16,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1116 transitions. [2025-02-06 09:22:16,956 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7733887733887734 [2025-02-06 09:22:16,956 INFO L175 Difference]: Start difference. First operand has 209 places, 259 transitions, 1881 flow. Second operand 13 states and 1116 transitions. [2025-02-06 09:22:16,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 274 transitions, 2069 flow [2025-02-06 09:22:16,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 274 transitions, 1961 flow, removed 10 selfloop flow, removed 18 redundant places. [2025-02-06 09:22:17,005 INFO L231 Difference]: Finished difference. Result has 194 places, 267 transitions, 1920 flow [2025-02-06 09:22:17,010 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1796, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1920, PETRI_PLACES=194, PETRI_TRANSITIONS=267} [2025-02-06 09:22:17,010 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 80 predicate places. [2025-02-06 09:22:17,010 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 267 transitions, 1920 flow [2025-02-06 09:22:17,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:17,011 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:17,011 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] [2025-02-06 09:22:17,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2025-02-06 09:22:17,011 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:17,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:17,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1188411256, now seen corresponding path program 22 times [2025-02-06 09:22:17,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:17,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134776082] [2025-02-06 09:22:17,012 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 09:22:17,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:17,020 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:22:17,024 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:22:17,024 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 09:22:17,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:17,322 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:17,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:17,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134776082] [2025-02-06 09:22:17,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134776082] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:17,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:17,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-02-06 09:22:17,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975853216] [2025-02-06 09:22:17,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:17,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-06 09:22:17,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:17,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-06 09:22:17,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2025-02-06 09:22:17,766 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 111 [2025-02-06 09:22:17,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 267 transitions, 1920 flow. Second operand has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-02-06 09:22:17,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:17,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 111 [2025-02-06 09:22:17,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:18,593 INFO L124 PetriNetUnfolderBase]: 1406/4302 cut-off events. [2025-02-06 09:22:18,593 INFO L125 PetriNetUnfolderBase]: For 14666/15186 co-relation queries the response was YES. [2025-02-06 09:22:18,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16274 conditions, 4302 events. 1406/4302 cut-off events. For 14666/15186 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 37965 event pairs, 59 based on Foata normal form. 123/4407 useless extension candidates. Maximal degree in co-relation 16231. Up to 1164 conditions per place. [2025-02-06 09:22:18,616 INFO L140 encePairwiseOnDemand]: 86/111 looper letters, 326 selfloop transitions, 100 changer transitions 70/589 dead transitions. [2025-02-06 09:22:18,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 589 transitions, 5797 flow [2025-02-06 09:22:18,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-06 09:22:18,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-02-06 09:22:18,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1616 transitions. [2025-02-06 09:22:18,617 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7279279279279279 [2025-02-06 09:22:18,617 INFO L175 Difference]: Start difference. First operand has 194 places, 267 transitions, 1920 flow. Second operand 20 states and 1616 transitions. [2025-02-06 09:22:18,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 589 transitions, 5797 flow [2025-02-06 09:22:18,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 589 transitions, 5748 flow, removed 1 selfloop flow, removed 8 redundant places. [2025-02-06 09:22:18,652 INFO L231 Difference]: Finished difference. Result has 216 places, 332 transitions, 2980 flow [2025-02-06 09:22:18,653 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=1886, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2980, PETRI_PLACES=216, PETRI_TRANSITIONS=332} [2025-02-06 09:22:18,653 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 102 predicate places. [2025-02-06 09:22:18,653 INFO L471 AbstractCegarLoop]: Abstraction has has 216 places, 332 transitions, 2980 flow [2025-02-06 09:22:18,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-02-06 09:22:18,653 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:18,653 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] [2025-02-06 09:22:18,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2025-02-06 09:22:18,654 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:18,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:18,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1379666112, now seen corresponding path program 23 times [2025-02-06 09:22:18,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:18,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767533127] [2025-02-06 09:22:18,654 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 09:22:18,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:18,671 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:22:18,675 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:22:18,675 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:22:18,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:18,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:18,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:18,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767533127] [2025-02-06 09:22:18,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767533127] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:18,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:18,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:22:18,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551696749] [2025-02-06 09:22:18,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:18,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:22:18,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:18,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:22:18,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:22:19,356 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:22:19,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 332 transitions, 2980 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:19,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:19,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:22:19,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:19,979 INFO L124 PetriNetUnfolderBase]: 1093/3716 cut-off events. [2025-02-06 09:22:19,980 INFO L125 PetriNetUnfolderBase]: For 12788/13034 co-relation queries the response was YES. [2025-02-06 09:22:19,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13524 conditions, 3716 events. 1093/3716 cut-off events. For 12788/13034 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 33771 event pairs, 41 based on Foata normal form. 30/3738 useless extension candidates. Maximal degree in co-relation 13470. Up to 701 conditions per place. [2025-02-06 09:22:19,997 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 37 selfloop transitions, 28 changer transitions 3/344 dead transitions. [2025-02-06 09:22:19,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 344 transitions, 3201 flow [2025-02-06 09:22:19,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:22:19,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:22:19,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1114 transitions. [2025-02-06 09:22:19,998 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.772002772002772 [2025-02-06 09:22:19,998 INFO L175 Difference]: Start difference. First operand has 216 places, 332 transitions, 2980 flow. Second operand 13 states and 1114 transitions. [2025-02-06 09:22:19,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 344 transitions, 3201 flow [2025-02-06 09:22:20,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 344 transitions, 3140 flow, removed 11 selfloop flow, removed 7 redundant places. [2025-02-06 09:22:20,041 INFO L231 Difference]: Finished difference. Result has 222 places, 334 transitions, 3019 flow [2025-02-06 09:22:20,042 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2926, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3019, PETRI_PLACES=222, PETRI_TRANSITIONS=334} [2025-02-06 09:22:20,043 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 108 predicate places. [2025-02-06 09:22:20,043 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 334 transitions, 3019 flow [2025-02-06 09:22:20,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:20,044 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:20,044 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] [2025-02-06 09:22:20,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2025-02-06 09:22:20,044 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:20,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:20,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1560487624, now seen corresponding path program 24 times [2025-02-06 09:22:20,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:20,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346809820] [2025-02-06 09:22:20,045 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 09:22:20,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:20,051 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:22:20,054 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:22:20,054 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 09:22:20,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:20,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:20,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:20,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346809820] [2025-02-06 09:22:20,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346809820] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:20,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:20,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:22:20,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882666561] [2025-02-06 09:22:20,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:20,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:22:20,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:20,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:22:20,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:22:20,817 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:22:20,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 334 transitions, 3019 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:20,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:20,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:22:20,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:21,267 INFO L124 PetriNetUnfolderBase]: 824/2878 cut-off events. [2025-02-06 09:22:21,267 INFO L125 PetriNetUnfolderBase]: For 10055/10252 co-relation queries the response was YES. [2025-02-06 09:22:21,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10390 conditions, 2878 events. 824/2878 cut-off events. For 10055/10252 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 24658 event pairs, 29 based on Foata normal form. 22/2894 useless extension candidates. Maximal degree in co-relation 10334. Up to 530 conditions per place. [2025-02-06 09:22:21,281 INFO L140 encePairwiseOnDemand]: 94/111 looper letters, 33 selfloop transitions, 19 changer transitions 8/336 dead transitions. [2025-02-06 09:22:21,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 336 transitions, 3135 flow [2025-02-06 09:22:21,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:22:21,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:22:21,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1108 transitions. [2025-02-06 09:22:21,284 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7678447678447679 [2025-02-06 09:22:21,284 INFO L175 Difference]: Start difference. First operand has 222 places, 334 transitions, 3019 flow. Second operand 13 states and 1108 transitions. [2025-02-06 09:22:21,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 336 transitions, 3135 flow [2025-02-06 09:22:21,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 336 transitions, 3070 flow, removed 8 selfloop flow, removed 12 redundant places. [2025-02-06 09:22:21,316 INFO L231 Difference]: Finished difference. Result has 224 places, 325 transitions, 2921 flow [2025-02-06 09:22:21,316 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2904, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2921, PETRI_PLACES=224, PETRI_TRANSITIONS=325} [2025-02-06 09:22:21,316 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 110 predicate places. [2025-02-06 09:22:21,317 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 325 transitions, 2921 flow [2025-02-06 09:22:21,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:21,317 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:21,317 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] [2025-02-06 09:22:21,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2025-02-06 09:22:21,317 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:21,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:21,318 INFO L85 PathProgramCache]: Analyzing trace with hash -554400382, now seen corresponding path program 25 times [2025-02-06 09:22:21,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:21,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421728185] [2025-02-06 09:22:21,318 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 09:22:21,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:21,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 09:22:21,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:22:21,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:22:21,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:21,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:21,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:21,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421728185] [2025-02-06 09:22:21,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421728185] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:21,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:21,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:22:21,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351485944] [2025-02-06 09:22:21,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:21,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:22:21,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:21,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:22:21,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:22:22,172 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:22:22,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 325 transitions, 2921 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:22,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:22,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:22:22,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:22,729 INFO L124 PetriNetUnfolderBase]: 824/2849 cut-off events. [2025-02-06 09:22:22,729 INFO L125 PetriNetUnfolderBase]: For 9943/10127 co-relation queries the response was YES. [2025-02-06 09:22:22,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10293 conditions, 2849 events. 824/2849 cut-off events. For 9943/10127 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 24477 event pairs, 31 based on Foata normal form. 37/2880 useless extension candidates. Maximal degree in co-relation 10237. Up to 528 conditions per place. [2025-02-06 09:22:22,741 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 18 selfloop transitions, 33 changer transitions 4/331 dead transitions. [2025-02-06 09:22:22,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 331 transitions, 3114 flow [2025-02-06 09:22:22,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:22:22,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:22:22,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1107 transitions. [2025-02-06 09:22:22,742 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7671517671517671 [2025-02-06 09:22:22,742 INFO L175 Difference]: Start difference. First operand has 224 places, 325 transitions, 2921 flow. Second operand 13 states and 1107 transitions. [2025-02-06 09:22:22,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 331 transitions, 3114 flow [2025-02-06 09:22:22,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 331 transitions, 2996 flow, removed 9 selfloop flow, removed 18 redundant places. [2025-02-06 09:22:22,771 INFO L231 Difference]: Finished difference. Result has 213 places, 325 transitions, 2925 flow [2025-02-06 09:22:22,771 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2824, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2925, PETRI_PLACES=213, PETRI_TRANSITIONS=325} [2025-02-06 09:22:22,771 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 99 predicate places. [2025-02-06 09:22:22,771 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 325 transitions, 2925 flow [2025-02-06 09:22:22,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:22,772 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:22,772 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] [2025-02-06 09:22:22,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2025-02-06 09:22:22,772 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:22,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:22,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1304707274, now seen corresponding path program 26 times [2025-02-06 09:22:22,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:22,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517335449] [2025-02-06 09:22:22,773 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:22:22,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:22,780 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:22:22,783 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:22:22,783 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:22:22,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:23,009 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:23,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:23,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517335449] [2025-02-06 09:22:23,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517335449] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:23,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:23,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:22:23,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871858755] [2025-02-06 09:22:23,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:23,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:22:23,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:23,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:22:23,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:22:23,498 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:22:23,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 325 transitions, 2925 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:23,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:23,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:22:23,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:23,805 INFO L124 PetriNetUnfolderBase]: 559/2019 cut-off events. [2025-02-06 09:22:23,806 INFO L125 PetriNetUnfolderBase]: For 6949/7065 co-relation queries the response was YES. [2025-02-06 09:22:23,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7303 conditions, 2019 events. 559/2019 cut-off events. For 6949/7065 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 15773 event pairs, 21 based on Foata normal form. 12/2027 useless extension candidates. Maximal degree in co-relation 7251. Up to 364 conditions per place. [2025-02-06 09:22:23,816 INFO L140 encePairwiseOnDemand]: 93/111 looper letters, 23 selfloop transitions, 20 changer transitions 7/326 dead transitions. [2025-02-06 09:22:23,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 326 transitions, 3034 flow [2025-02-06 09:22:23,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:22:23,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:22:23,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1104 transitions. [2025-02-06 09:22:23,817 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7650727650727651 [2025-02-06 09:22:23,817 INFO L175 Difference]: Start difference. First operand has 213 places, 325 transitions, 2925 flow. Second operand 13 states and 1104 transitions. [2025-02-06 09:22:23,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 326 transitions, 3034 flow [2025-02-06 09:22:23,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 326 transitions, 2952 flow, removed 8 selfloop flow, removed 13 redundant places. [2025-02-06 09:22:23,844 INFO L231 Difference]: Finished difference. Result has 213 places, 317 transitions, 2815 flow [2025-02-06 09:22:23,848 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2809, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2815, PETRI_PLACES=213, PETRI_TRANSITIONS=317} [2025-02-06 09:22:23,848 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 99 predicate places. [2025-02-06 09:22:23,848 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 317 transitions, 2815 flow [2025-02-06 09:22:23,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:23,848 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:23,848 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] [2025-02-06 09:22:23,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2025-02-06 09:22:23,848 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:23,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:23,853 INFO L85 PathProgramCache]: Analyzing trace with hash -893314078, now seen corresponding path program 27 times [2025-02-06 09:22:23,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:23,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741216497] [2025-02-06 09:22:23,853 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:22:23,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:23,861 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:22:23,863 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:22:23,863 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 09:22:23,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:24,196 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:24,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:24,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741216497] [2025-02-06 09:22:24,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741216497] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:24,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:24,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:22:24,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638900253] [2025-02-06 09:22:24,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:24,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:22:24,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:24,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:22:24,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:22:24,597 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:22:24,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 317 transitions, 2815 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:24,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:24,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:22:24,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:24,925 INFO L124 PetriNetUnfolderBase]: 555/1985 cut-off events. [2025-02-06 09:22:24,925 INFO L125 PetriNetUnfolderBase]: For 6240/6354 co-relation queries the response was YES. [2025-02-06 09:22:24,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7062 conditions, 1985 events. 555/1985 cut-off events. For 6240/6354 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 15446 event pairs, 21 based on Foata normal form. 24/2005 useless extension candidates. Maximal degree in co-relation 7011. Up to 364 conditions per place. [2025-02-06 09:22:24,935 INFO L140 encePairwiseOnDemand]: 90/111 looper letters, 13 selfloop transitions, 30 changer transitions 6/323 dead transitions. [2025-02-06 09:22:24,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 323 transitions, 2975 flow [2025-02-06 09:22:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:22:24,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:22:24,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1102 transitions. [2025-02-06 09:22:24,936 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7636867636867637 [2025-02-06 09:22:24,936 INFO L175 Difference]: Start difference. First operand has 213 places, 317 transitions, 2815 flow. Second operand 13 states and 1102 transitions. [2025-02-06 09:22:24,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 323 transitions, 2975 flow [2025-02-06 09:22:24,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 323 transitions, 2862 flow, removed 14 selfloop flow, removed 15 redundant places. [2025-02-06 09:22:24,956 INFO L231 Difference]: Finished difference. Result has 206 places, 314 transitions, 2767 flow [2025-02-06 09:22:24,956 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2722, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2767, PETRI_PLACES=206, PETRI_TRANSITIONS=314} [2025-02-06 09:22:24,956 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 92 predicate places. [2025-02-06 09:22:24,956 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 314 transitions, 2767 flow [2025-02-06 09:22:24,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:24,957 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:24,957 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] [2025-02-06 09:22:24,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2025-02-06 09:22:24,957 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:24,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:24,958 INFO L85 PathProgramCache]: Analyzing trace with hash 711283814, now seen corresponding path program 28 times [2025-02-06 09:22:24,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:24,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146894153] [2025-02-06 09:22:24,958 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 09:22:24,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:24,964 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:22:24,967 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 09:22:24,967 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 09:22:24,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:25,227 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:25,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:25,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146894153] [2025-02-06 09:22:25,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146894153] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:25,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:25,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-02-06 09:22:25,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692534493] [2025-02-06 09:22:25,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:25,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-06 09:22:25,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:25,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-06 09:22:25,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2025-02-06 09:22:25,891 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 111 [2025-02-06 09:22:25,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 314 transitions, 2767 flow. Second operand has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-02-06 09:22:25,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:25,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 111 [2025-02-06 09:22:25,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:26,641 INFO L124 PetriNetUnfolderBase]: 750/2393 cut-off events. [2025-02-06 09:22:26,641 INFO L125 PetriNetUnfolderBase]: For 10385/10670 co-relation queries the response was YES. [2025-02-06 09:22:26,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9753 conditions, 2393 events. 750/2393 cut-off events. For 10385/10670 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 18560 event pairs, 57 based on Foata normal form. 70/2451 useless extension candidates. Maximal degree in co-relation 9705. Up to 522 conditions per place. [2025-02-06 09:22:26,653 INFO L140 encePairwiseOnDemand]: 88/111 looper letters, 331 selfloop transitions, 92 changer transitions 36/551 dead transitions. [2025-02-06 09:22:26,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 551 transitions, 5887 flow [2025-02-06 09:22:26,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-06 09:22:26,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-02-06 09:22:26,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1524 transitions. [2025-02-06 09:22:26,654 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7226173541963016 [2025-02-06 09:22:26,654 INFO L175 Difference]: Start difference. First operand has 206 places, 314 transitions, 2767 flow. Second operand 19 states and 1524 transitions. [2025-02-06 09:22:26,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 551 transitions, 5887 flow [2025-02-06 09:22:26,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 551 transitions, 5780 flow, removed 4 selfloop flow, removed 13 redundant places. [2025-02-06 09:22:26,679 INFO L231 Difference]: Finished difference. Result has 217 places, 344 transitions, 3314 flow [2025-02-06 09:22:26,679 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2694, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3314, PETRI_PLACES=217, PETRI_TRANSITIONS=344} [2025-02-06 09:22:26,680 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 103 predicate places. [2025-02-06 09:22:26,680 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 344 transitions, 3314 flow [2025-02-06 09:22:26,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 73.6) internal successors, (1104), 15 states have internal predecessors, (1104), 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) [2025-02-06 09:22:26,680 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:26,680 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] [2025-02-06 09:22:26,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2025-02-06 09:22:26,680 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:26,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:26,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1705359603, now seen corresponding path program 26 times [2025-02-06 09:22:26,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:26,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94770721] [2025-02-06 09:22:26,681 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:22:26,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:26,687 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:22:26,689 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:22:26,689 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:22:26,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:26,853 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:26,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:26,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94770721] [2025-02-06 09:22:26,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94770721] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:26,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:26,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:22:26,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365514309] [2025-02-06 09:22:26,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:26,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:22:26,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:26,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:22:26,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:22:27,284 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:22:27,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 344 transitions, 3314 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:27,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:27,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:22:27,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:27,534 INFO L124 PetriNetUnfolderBase]: 288/1134 cut-off events. [2025-02-06 09:22:27,534 INFO L125 PetriNetUnfolderBase]: For 4125/4170 co-relation queries the response was YES. [2025-02-06 09:22:27,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4169 conditions, 1134 events. 288/1134 cut-off events. For 4125/4170 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 7505 event pairs, 9 based on Foata normal form. 10/1142 useless extension candidates. Maximal degree in co-relation 4115. Up to 193 conditions per place. [2025-02-06 09:22:27,540 INFO L140 encePairwiseOnDemand]: 92/111 looper letters, 14 selfloop transitions, 20 changer transitions 6/285 dead transitions. [2025-02-06 09:22:27,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 285 transitions, 2510 flow [2025-02-06 09:22:27,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:22:27,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:22:27,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1100 transitions. [2025-02-06 09:22:27,541 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7623007623007623 [2025-02-06 09:22:27,541 INFO L175 Difference]: Start difference. First operand has 217 places, 344 transitions, 3314 flow. Second operand 13 states and 1100 transitions. [2025-02-06 09:22:27,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 285 transitions, 2510 flow [2025-02-06 09:22:27,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 285 transitions, 2313 flow, removed 46 selfloop flow, removed 24 redundant places. [2025-02-06 09:22:27,557 INFO L231 Difference]: Finished difference. Result has 198 places, 279 transitions, 2235 flow [2025-02-06 09:22:27,557 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=2237, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2235, PETRI_PLACES=198, PETRI_TRANSITIONS=279} [2025-02-06 09:22:27,558 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, 84 predicate places. [2025-02-06 09:22:27,558 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 279 transitions, 2235 flow [2025-02-06 09:22:27,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:27,559 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:22:27,559 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] [2025-02-06 09:22:27,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2025-02-06 09:22:27,559 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2025-02-06 09:22:27,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:22:27,559 INFO L85 PathProgramCache]: Analyzing trace with hash 489685037, now seen corresponding path program 27 times [2025-02-06 09:22:27,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:22:27,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449446645] [2025-02-06 09:22:27,559 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:22:27,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:22:27,571 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 69 statements into 2 equivalence classes. [2025-02-06 09:22:27,574 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 67 of 69 statements. [2025-02-06 09:22:27,574 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 09:22:27,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:22:27,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:22:27,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:22:27,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449446645] [2025-02-06 09:22:27,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449446645] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:22:27,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:22:27,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 09:22:27,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580038945] [2025-02-06 09:22:27,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:22:27,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 09:22:27,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:22:27,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 09:22:27,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:22:28,206 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 111 [2025-02-06 09:22:28,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 279 transitions, 2235 flow. Second operand has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:28,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:22:28,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 111 [2025-02-06 09:22:28,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:22:28,331 INFO L124 PetriNetUnfolderBase]: 2/75 cut-off events. [2025-02-06 09:22:28,331 INFO L125 PetriNetUnfolderBase]: For 71/72 co-relation queries the response was YES. [2025-02-06 09:22:28,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 75 events. 2/75 cut-off events. For 71/72 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 18 event pairs, 0 based on Foata normal form. 5/80 useless extension candidates. Maximal degree in co-relation 178. Up to 7 conditions per place. [2025-02-06 09:22:28,332 INFO L140 encePairwiseOnDemand]: 96/111 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2025-02-06 09:22:28,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 71 transitions, 333 flow [2025-02-06 09:22:28,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:22:28,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 09:22:28,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1088 transitions. [2025-02-06 09:22:28,333 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.753984753984754 [2025-02-06 09:22:28,333 INFO L175 Difference]: Start difference. First operand has 198 places, 279 transitions, 2235 flow. Second operand 13 states and 1088 transitions. [2025-02-06 09:22:28,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 71 transitions, 333 flow [2025-02-06 09:22:28,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 71 transitions, 203 flow, removed 19 selfloop flow, removed 42 redundant places. [2025-02-06 09:22:28,334 INFO L231 Difference]: Finished difference. Result has 109 places, 0 transitions, 0 flow [2025-02-06 09:22:28,334 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=109, PETRI_TRANSITIONS=0} [2025-02-06 09:22:28,334 INFO L279 CegarLoopForPetriNet]: 114 programPoint places, -5 predicate places. [2025-02-06 09:22:28,334 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 0 transitions, 0 flow [2025-02-06 09:22:28,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.6923076923077) internal successors, (1088), 13 states have internal predecessors, (1088), 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) [2025-02-06 09:22:28,338 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2025-02-06 09:22:28,339 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2025-02-06 09:22:28,339 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2025-02-06 09:22:28,339 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2025-02-06 09:22:28,339 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2025-02-06 09:22:28,339 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2025-02-06 09:22:28,339 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2025-02-06 09:22:28,339 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2025-02-06 09:22:28,339 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2025-02-06 09:22:28,339 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2025-02-06 09:22:28,339 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2025-02-06 09:22:28,339 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2025-02-06 09:22:28,339 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2025-02-06 09:22:28,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2025-02-06 09:22:28,340 INFO L422 BasicCegarLoop]: Path program histogram: [28, 27, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:22:28,346 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 09:22:28,346 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 09:22:28,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 09:22:28 BasicIcfg [2025-02-06 09:22:28,352 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 09:22:28,353 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 09:22:28,353 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 09:22:28,353 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 09:22:28,354 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:21:03" (3/4) ... [2025-02-06 09:22:28,356 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 09:22:28,364 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-02-06 09:22:28,370 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-06 09:22:28,371 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-06 09:22:28,371 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-06 09:22:28,460 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 09:22:28,460 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 09:22:28,460 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 09:22:28,461 INFO L158 Benchmark]: Toolchain (without parser) took 85781.41ms. Allocated memory was 142.6MB in the beginning and 511.7MB in the end (delta: 369.1MB). Free memory was 109.2MB in the beginning and 243.7MB in the end (delta: -134.5MB). Peak memory consumption was 235.5MB. Max. memory is 16.1GB. [2025-02-06 09:22:28,461 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:22:28,461 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.77ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 85.4MB in the end (delta: 22.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 09:22:28,461 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.82ms. Allocated memory is still 142.6MB. Free memory was 85.4MB in the beginning and 83.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:22:28,461 INFO L158 Benchmark]: Boogie Preprocessor took 16.58ms. Allocated memory is still 142.6MB. Free memory was 83.5MB in the beginning and 81.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:22:28,462 INFO L158 Benchmark]: IcfgBuilder took 403.29ms. Allocated memory is still 142.6MB. Free memory was 81.7MB in the beginning and 64.8MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 09:22:28,462 INFO L158 Benchmark]: TraceAbstraction took 84904.19ms. Allocated memory was 142.6MB in the beginning and 511.7MB in the end (delta: 369.1MB). Free memory was 64.8MB in the beginning and 248.1MB in the end (delta: -183.3MB). Peak memory consumption was 185.1MB. Max. memory is 16.1GB. [2025-02-06 09:22:28,462 INFO L158 Benchmark]: Witness Printer took 107.45ms. Allocated memory is still 511.7MB. Free memory was 248.1MB in the beginning and 243.7MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 09:22:28,463 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.77ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 85.4MB in the end (delta: 22.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.82ms. Allocated memory is still 142.6MB. Free memory was 85.4MB in the beginning and 83.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.58ms. Allocated memory is still 142.6MB. Free memory was 83.5MB in the beginning and 81.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 403.29ms. Allocated memory is still 142.6MB. Free memory was 81.7MB in the beginning and 64.8MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 84904.19ms. Allocated memory was 142.6MB in the beginning and 511.7MB in the end (delta: 369.1MB). Free memory was 64.8MB in the beginning and 248.1MB in the end (delta: -183.3MB). Peak memory consumption was 185.1MB. Max. memory is 16.1GB. * Witness Printer took 107.45ms. Allocated memory is still 511.7MB. Free memory was 248.1MB in the beginning and 243.7MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3010]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3011]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 2995]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3013]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3001]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3001]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3005]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3001]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 3001]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 149 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 84.8s, OverallIterations: 62, TraceHistogramMax: 1, PathProgramHistogramMax: 28, EmptinessCheckTime: 0.0s, AutomataDifference: 66.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31545 SdHoareTripleChecker+Valid, 32.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27367 mSDsluCounter, 119715 SdHoareTripleChecker+Invalid, 27.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 117428 mSDsCounter, 526 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79416 IncrementalHoareTripleChecker+Invalid, 79942 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 526 mSolverCounterUnsat, 2287 mSDtfsCounter, 79416 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1320 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 1122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2555 ImplicationChecksByTransitivity, 11.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4674occurred in iteration=28, InterpolantAutomatonStates: 789, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 17.3s InterpolantComputationTime, 4061 NumberOfCodeBlocks, 4005 NumberOfCodeBlocksAsserted, 79 NumberOfCheckSat, 3999 ConstructedInterpolants, 0 QuantifiedInterpolants, 20692 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 62 InterpolantComputations, 62 PerfectInterpolantSequences, 171/171 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 09:22:28,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE