./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 735b3cc8 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c18dd13658bb5739ed2db8c4c80ae330682b7c3cebd2ad85657518c27ca325b9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 01:35:27,086 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 01:35:27,147 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-14 01:35:27,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 01:35:27,151 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 01:35:27,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 01:35:27,173 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 01:35:27,173 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 01:35:27,174 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 01:35:27,174 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 01:35:27,174 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 01:35:27,174 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 01:35:27,174 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 01:35:27,175 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 01:35:27,175 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 01:35:27,175 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 01:35:27,175 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 01:35:27,175 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 01:35:27,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 01:35:27,175 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 01:35:27,175 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 01:35:27,175 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 01:35:27,176 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-14 01:35:27,176 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-14 01:35:27,176 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 01:35:27,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 01:35:27,176 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 01:35:27,176 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 01:35:27,176 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 01:35:27,176 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 01:35:27,176 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 01:35:27,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:35:27,177 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 01:35:27,177 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 01:35:27,177 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 01:35:27,177 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 01:35:27,177 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 01:35:27,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 01:35:27,177 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 01:35:27,177 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 01:35:27,178 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 01:35:27,178 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 01:35:27,178 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c18dd13658bb5739ed2db8c4c80ae330682b7c3cebd2ad85657518c27ca325b9 [2025-03-14 01:35:27,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 01:35:27,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 01:35:27,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 01:35:27,454 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 01:35:27,454 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 01:35:27,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2025-03-14 01:35:28,669 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b651988c7/be60936f05a94b0198eee94da3ea6854/FLAGc388ecadf [2025-03-14 01:35:28,920 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 01:35:28,921 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2025-03-14 01:35:28,937 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b651988c7/be60936f05a94b0198eee94da3ea6854/FLAGc388ecadf [2025-03-14 01:35:28,953 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b651988c7/be60936f05a94b0198eee94da3ea6854 [2025-03-14 01:35:28,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 01:35:28,956 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 01:35:28,958 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 01:35:28,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 01:35:28,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 01:35:28,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:35:28" (1/1) ... [2025-03-14 01:35:28,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d1c6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:28, skipping insertion in model container [2025-03-14 01:35:28,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:35:28" (1/1) ... [2025-03-14 01:35:28,996 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 01:35:29,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:35:29,292 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 01:35:29,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:35:29,374 INFO L204 MainTranslator]: Completed translation [2025-03-14 01:35:29,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:29 WrapperNode [2025-03-14 01:35:29,375 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 01:35:29,376 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 01:35:29,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 01:35:29,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 01:35:29,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:29" (1/1) ... [2025-03-14 01:35:29,392 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:29" (1/1) ... [2025-03-14 01:35:29,408 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 148 [2025-03-14 01:35:29,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 01:35:29,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 01:35:29,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 01:35:29,413 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 01:35:29,419 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:29" (1/1) ... [2025-03-14 01:35:29,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:29" (1/1) ... [2025-03-14 01:35:29,422 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:29" (1/1) ... [2025-03-14 01:35:29,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:29" (1/1) ... [2025-03-14 01:35:29,436 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:29" (1/1) ... [2025-03-14 01:35:29,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:29" (1/1) ... [2025-03-14 01:35:29,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:29" (1/1) ... [2025-03-14 01:35:29,444 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:29" (1/1) ... [2025-03-14 01:35:29,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 01:35:29,447 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 01:35:29,450 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 01:35:29,450 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 01:35:29,451 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:29" (1/1) ... [2025-03-14 01:35:29,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:35:29,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:35:29,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-14 01:35:29,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-14 01:35:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-14 01:35:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-14 01:35:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-14 01:35:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-14 01:35:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 01:35:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-14 01:35:29,503 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-14 01:35:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-14 01:35:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 01:35:29,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 01:35:29,504 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 01:35:29,597 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 01:35:29,598 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 01:35:29,842 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 01:35:29,843 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 01:35:29,843 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 01:35:29,861 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 01:35:29,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:35:29 BoogieIcfgContainer [2025-03-14 01:35:29,861 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 01:35:29,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 01:35:29,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 01:35:29,867 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 01:35:29,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 01:35:28" (1/3) ... [2025-03-14 01:35:29,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8aa70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:35:29, skipping insertion in model container [2025-03-14 01:35:29,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:35:29" (2/3) ... [2025-03-14 01:35:29,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c8aa70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:35:29, skipping insertion in model container [2025-03-14 01:35:29,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:35:29" (3/3) ... [2025-03-14 01:35:29,870 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_07-tricky_address2.i [2025-03-14 01:35:29,881 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 01:35:29,882 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_07-tricky_address2.i that has 2 procedures, 158 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2025-03-14 01:35:29,882 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 01:35:29,941 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 01:35:29,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 160 transitions, 324 flow [2025-03-14 01:35:30,030 INFO L124 PetriNetUnfolderBase]: 3/159 cut-off events. [2025-03-14 01:35:30,032 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:35:30,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 159 events. 3/159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 83 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2025-03-14 01:35:30,037 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 160 transitions, 324 flow [2025-03-14 01:35:30,042 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 159 transitions, 321 flow [2025-03-14 01:35:30,054 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:35:30,068 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;@e702a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:35:30,068 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-14 01:35:30,098 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:35:30,098 INFO L124 PetriNetUnfolderBase]: 3/112 cut-off events. [2025-03-14 01:35:30,098 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:35:30,098 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:30,100 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:30,100 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:35:30,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:30,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1531881620, now seen corresponding path program 1 times [2025-03-14 01:35:30,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:30,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401585688] [2025-03-14 01:35:30,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:30,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:30,189 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-03-14 01:35:30,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-03-14 01:35:30,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:30,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:30,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:30,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:30,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401585688] [2025-03-14 01:35:30,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401585688] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:30,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:30,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-14 01:35:30,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853261682] [2025-03-14 01:35:30,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:30,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:35:30,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:30,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:35:30,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:35:30,475 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 160 [2025-03-14 01:35:30,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 159 transitions, 321 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:30,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:30,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 160 [2025-03-14 01:35:30,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:30,536 INFO L124 PetriNetUnfolderBase]: 7/221 cut-off events. [2025-03-14 01:35:30,536 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:35:30,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 221 events. 7/221 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 323 event pairs, 6 based on Foata normal form. 5/214 useless extension candidates. Maximal degree in co-relation 144. Up to 24 conditions per place. [2025-03-14 01:35:30,539 INFO L140 encePairwiseOnDemand]: 155/160 looper letters, 10 selfloop transitions, 2 changer transitions 1/158 dead transitions. [2025-03-14 01:35:30,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 158 transitions, 343 flow [2025-03-14 01:35:30,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:35:30,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:35:30,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2025-03-14 01:35:30,552 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.95 [2025-03-14 01:35:30,555 INFO L175 Difference]: Start difference. First operand has 160 places, 159 transitions, 321 flow. Second operand 3 states and 456 transitions. [2025-03-14 01:35:30,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 158 transitions, 343 flow [2025-03-14 01:35:30,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 158 transitions, 342 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-14 01:35:30,567 INFO L231 Difference]: Finished difference. Result has 162 places, 157 transitions, 326 flow [2025-03-14 01:35:30,569 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=162, PETRI_TRANSITIONS=157} [2025-03-14 01:35:30,572 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 2 predicate places. [2025-03-14 01:35:30,574 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 157 transitions, 326 flow [2025-03-14 01:35:30,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:30,575 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:30,575 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:30,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 01:35:30,576 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:35:30,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:30,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1288320965, now seen corresponding path program 1 times [2025-03-14 01:35:30,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:30,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557578858] [2025-03-14 01:35:30,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:30,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:30,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-14 01:35:30,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-14 01:35:30,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:30,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:30,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:30,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:30,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557578858] [2025-03-14 01:35:30,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557578858] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 01:35:30,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402319559] [2025-03-14 01:35:30,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:30,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:35:30,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:35:30,751 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 01:35:30,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-14 01:35:30,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-14 01:35:30,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-14 01:35:30,844 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:30,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:30,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-14 01:35:30,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 01:35:30,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:30,902 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 01:35:30,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:30,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402319559] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 01:35:30,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 01:35:30,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-14 01:35:30,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538492570] [2025-03-14 01:35:30,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 01:35:30,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 01:35:30,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:30,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 01:35:30,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-14 01:35:30,972 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-03-14 01:35:30,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 157 transitions, 326 flow. Second operand has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:30,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:30,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-03-14 01:35:30,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:31,093 INFO L124 PetriNetUnfolderBase]: 7/227 cut-off events. [2025-03-14 01:35:31,093 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:35:31,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 227 events. 7/227 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 318 event pairs, 6 based on Foata normal form. 2/218 useless extension candidates. Maximal degree in co-relation 191. Up to 24 conditions per place. [2025-03-14 01:35:31,095 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 14 selfloop transitions, 9 changer transitions 0/165 dead transitions. [2025-03-14 01:35:31,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 165 transitions, 390 flow [2025-03-14 01:35:31,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-14 01:35:31,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-14 01:35:31,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1321 transitions. [2025-03-14 01:35:31,100 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9173611111111111 [2025-03-14 01:35:31,100 INFO L175 Difference]: Start difference. First operand has 162 places, 157 transitions, 326 flow. Second operand 9 states and 1321 transitions. [2025-03-14 01:35:31,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 165 transitions, 390 flow [2025-03-14 01:35:31,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 165 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-14 01:35:31,105 INFO L231 Difference]: Finished difference. Result has 171 places, 163 transitions, 374 flow [2025-03-14 01:35:31,105 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=374, PETRI_PLACES=171, PETRI_TRANSITIONS=163} [2025-03-14 01:35:31,106 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 11 predicate places. [2025-03-14 01:35:31,106 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 163 transitions, 374 flow [2025-03-14 01:35:31,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:31,107 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:31,107 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:31,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-14 01:35:31,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:35:31,312 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:35:31,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:31,313 INFO L85 PathProgramCache]: Analyzing trace with hash -320842789, now seen corresponding path program 2 times [2025-03-14 01:35:31,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:31,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804285991] [2025-03-14 01:35:31,313 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:35:31,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:31,325 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 109 statements into 2 equivalence classes. [2025-03-14 01:35:31,333 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 94 of 109 statements. [2025-03-14 01:35:31,333 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:35:31,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:31,752 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-14 01:35:31,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:31,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804285991] [2025-03-14 01:35:31,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804285991] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:31,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:31,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:35:31,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948238622] [2025-03-14 01:35:31,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:31,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:35:31,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:31,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:35:31,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:35:32,203 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 160 [2025-03-14 01:35:32,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 163 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:32,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:32,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 160 [2025-03-14 01:35:32,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:32,362 INFO L124 PetriNetUnfolderBase]: 129/676 cut-off events. [2025-03-14 01:35:32,362 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-14 01:35:32,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1006 conditions, 676 events. 129/676 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3547 event pairs, 46 based on Foata normal form. 0/616 useless extension candidates. Maximal degree in co-relation 893. Up to 178 conditions per place. [2025-03-14 01:35:32,368 INFO L140 encePairwiseOnDemand]: 149/160 looper letters, 43 selfloop transitions, 22 changer transitions 0/204 dead transitions. [2025-03-14 01:35:32,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 204 transitions, 586 flow [2025-03-14 01:35:32,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:35:32,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:35:32,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 870 transitions. [2025-03-14 01:35:32,372 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.90625 [2025-03-14 01:35:32,372 INFO L175 Difference]: Start difference. First operand has 171 places, 163 transitions, 374 flow. Second operand 6 states and 870 transitions. [2025-03-14 01:35:32,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 204 transitions, 586 flow [2025-03-14 01:35:32,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 204 transitions, 580 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-03-14 01:35:32,376 INFO L231 Difference]: Finished difference. Result has 179 places, 185 transitions, 514 flow [2025-03-14 01:35:32,377 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=514, PETRI_PLACES=179, PETRI_TRANSITIONS=185} [2025-03-14 01:35:32,378 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 19 predicate places. [2025-03-14 01:35:32,378 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 185 transitions, 514 flow [2025-03-14 01:35:32,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:32,379 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:32,379 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:32,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 01:35:32,379 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:35:32,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:32,381 INFO L85 PathProgramCache]: Analyzing trace with hash -78790998, now seen corresponding path program 1 times [2025-03-14 01:35:32,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:32,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249144605] [2025-03-14 01:35:32,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:32,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:32,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-03-14 01:35:32,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-03-14 01:35:32,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:32,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:32,517 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:32,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:32,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249144605] [2025-03-14 01:35:32,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249144605] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 01:35:32,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977221273] [2025-03-14 01:35:32,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:32,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:35:32,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:35:32,522 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 01:35:32,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-14 01:35:32,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-03-14 01:35:32,596 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-03-14 01:35:32,596 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:32,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:32,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-14 01:35:32,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 01:35:32,657 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:32,657 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 01:35:32,743 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:32,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977221273] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 01:35:32,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 01:35:32,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-03-14 01:35:32,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805046904] [2025-03-14 01:35:32,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 01:35:32,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-14 01:35:32,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:32,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-14 01:35:32,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-14 01:35:32,778 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-03-14 01:35:32,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 185 transitions, 514 flow. Second operand has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:32,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:32,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-03-14 01:35:32,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:32,998 INFO L124 PetriNetUnfolderBase]: 41/503 cut-off events. [2025-03-14 01:35:32,998 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2025-03-14 01:35:32,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 814 conditions, 503 events. 41/503 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2262 event pairs, 16 based on Foata normal form. 4/480 useless extension candidates. Maximal degree in co-relation 626. Up to 55 conditions per place. [2025-03-14 01:35:33,000 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 18 selfloop transitions, 21 changer transitions 0/203 dead transitions. [2025-03-14 01:35:33,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 203 transitions, 680 flow [2025-03-14 01:35:33,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-14 01:35:33,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-14 01:35:33,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3067 transitions. [2025-03-14 01:35:33,006 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.912797619047619 [2025-03-14 01:35:33,006 INFO L175 Difference]: Start difference. First operand has 179 places, 185 transitions, 514 flow. Second operand 21 states and 3067 transitions. [2025-03-14 01:35:33,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 203 transitions, 680 flow [2025-03-14 01:35:33,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 203 transitions, 680 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:35:33,013 INFO L231 Difference]: Finished difference. Result has 204 places, 198 transitions, 644 flow [2025-03-14 01:35:33,013 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=644, PETRI_PLACES=204, PETRI_TRANSITIONS=198} [2025-03-14 01:35:33,014 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 44 predicate places. [2025-03-14 01:35:33,015 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 198 transitions, 644 flow [2025-03-14 01:35:33,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:33,016 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:33,016 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:33,023 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-14 01:35:33,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-03-14 01:35:33,217 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:35:33,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:33,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1783398934, now seen corresponding path program 2 times [2025-03-14 01:35:33,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:33,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941447983] [2025-03-14 01:35:33,218 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:35:33,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:33,237 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 137 statements into 2 equivalence classes. [2025-03-14 01:35:33,247 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 102 of 137 statements. [2025-03-14 01:35:33,247 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:35:33,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:33,589 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-14 01:35:33,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:33,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941447983] [2025-03-14 01:35:33,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941447983] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:33,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:33,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:35:33,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99128908] [2025-03-14 01:35:33,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:33,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:35:33,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:33,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:35:33,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:35:33,936 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 160 [2025-03-14 01:35:33,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 198 transitions, 644 flow. Second operand has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:33,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:33,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 160 [2025-03-14 01:35:33,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:34,186 INFO L124 PetriNetUnfolderBase]: 306/1335 cut-off events. [2025-03-14 01:35:34,187 INFO L125 PetriNetUnfolderBase]: For 286/296 co-relation queries the response was YES. [2025-03-14 01:35:34,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2502 conditions, 1335 events. 306/1335 cut-off events. For 286/296 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 9036 event pairs, 116 based on Foata normal form. 5/1228 useless extension candidates. Maximal degree in co-relation 2305. Up to 464 conditions per place. [2025-03-14 01:35:34,195 INFO L140 encePairwiseOnDemand]: 145/160 looper letters, 72 selfloop transitions, 36 changer transitions 2/255 dead transitions. [2025-03-14 01:35:34,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 255 transitions, 1016 flow [2025-03-14 01:35:34,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:35:34,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:35:34,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 856 transitions. [2025-03-14 01:35:34,197 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8916666666666667 [2025-03-14 01:35:34,197 INFO L175 Difference]: Start difference. First operand has 204 places, 198 transitions, 644 flow. Second operand 6 states and 856 transitions. [2025-03-14 01:35:34,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 255 transitions, 1016 flow [2025-03-14 01:35:34,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 255 transitions, 992 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-03-14 01:35:34,204 INFO L231 Difference]: Finished difference. Result has 207 places, 230 transitions, 872 flow [2025-03-14 01:35:34,205 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=872, PETRI_PLACES=207, PETRI_TRANSITIONS=230} [2025-03-14 01:35:34,206 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 47 predicate places. [2025-03-14 01:35:34,207 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 230 transitions, 872 flow [2025-03-14 01:35:34,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:34,207 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:34,207 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:34,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-14 01:35:34,208 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:35:34,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:34,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1518349476, now seen corresponding path program 1 times [2025-03-14 01:35:34,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:34,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191271087] [2025-03-14 01:35:34,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:34,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:34,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-14 01:35:34,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-14 01:35:34,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:34,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:34,475 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:34,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:34,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191271087] [2025-03-14 01:35:34,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191271087] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 01:35:34,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592053777] [2025-03-14 01:35:34,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:34,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:35:34,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:35:34,478 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 01:35:34,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-14 01:35:34,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-14 01:35:34,558 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-14 01:35:34,558 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:34,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:34,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-14 01:35:34,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 01:35:34,657 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:34,659 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 01:35:34,825 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:35:34,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592053777] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 01:35:34,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 01:35:34,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-03-14 01:35:34,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319085758] [2025-03-14 01:35:34,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 01:35:34,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-14 01:35:34,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:34,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-14 01:35:34,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-03-14 01:35:34,854 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-03-14 01:35:34,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 230 transitions, 872 flow. Second operand has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:34,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:34,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-03-14 01:35:34,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:35,189 INFO L124 PetriNetUnfolderBase]: 120/935 cut-off events. [2025-03-14 01:35:35,190 INFO L125 PetriNetUnfolderBase]: For 414/414 co-relation queries the response was YES. [2025-03-14 01:35:35,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1833 conditions, 935 events. 120/935 cut-off events. For 414/414 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5959 event pairs, 33 based on Foata normal form. 3/879 useless extension candidates. Maximal degree in co-relation 1557. Up to 134 conditions per place. [2025-03-14 01:35:35,196 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 21 selfloop transitions, 30 changer transitions 0/247 dead transitions. [2025-03-14 01:35:35,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 247 transitions, 1096 flow [2025-03-14 01:35:35,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-14 01:35:35,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-14 01:35:35,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4374 transitions. [2025-03-14 01:35:35,203 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.91125 [2025-03-14 01:35:35,203 INFO L175 Difference]: Start difference. First operand has 207 places, 230 transitions, 872 flow. Second operand 30 states and 4374 transitions. [2025-03-14 01:35:35,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 247 transitions, 1096 flow [2025-03-14 01:35:35,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 247 transitions, 1072 flow, removed 12 selfloop flow, removed 0 redundant places. [2025-03-14 01:35:35,211 INFO L231 Difference]: Finished difference. Result has 239 places, 240 transitions, 1000 flow [2025-03-14 01:35:35,211 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1000, PETRI_PLACES=239, PETRI_TRANSITIONS=240} [2025-03-14 01:35:35,212 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 79 predicate places. [2025-03-14 01:35:35,212 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 240 transitions, 1000 flow [2025-03-14 01:35:35,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:35,214 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:35,214 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:35,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-14 01:35:35,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:35:35,415 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:35:35,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:35,416 INFO L85 PathProgramCache]: Analyzing trace with hash 928010101, now seen corresponding path program 2 times [2025-03-14 01:35:35,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:35,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432288339] [2025-03-14 01:35:35,416 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:35:35,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:35,427 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 154 statements into 2 equivalence classes. [2025-03-14 01:35:35,431 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 104 of 154 statements. [2025-03-14 01:35:35,431 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:35:35,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:35,666 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:35:35,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:35,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432288339] [2025-03-14 01:35:35,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432288339] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:35,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:35,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:35:35,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135879479] [2025-03-14 01:35:35,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:35,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:35:35,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:35,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:35:35,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:35:36,134 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 160 [2025-03-14 01:35:36,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 240 transitions, 1000 flow. Second operand has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:36,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:36,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 160 [2025-03-14 01:35:36,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:36,405 INFO L124 PetriNetUnfolderBase]: 300/1427 cut-off events. [2025-03-14 01:35:36,405 INFO L125 PetriNetUnfolderBase]: For 878/918 co-relation queries the response was YES. [2025-03-14 01:35:36,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3261 conditions, 1427 events. 300/1427 cut-off events. For 878/918 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 10128 event pairs, 66 based on Foata normal form. 10/1390 useless extension candidates. Maximal degree in co-relation 2983. Up to 443 conditions per place. [2025-03-14 01:35:36,412 INFO L140 encePairwiseOnDemand]: 149/160 looper letters, 79 selfloop transitions, 49 changer transitions 0/306 dead transitions. [2025-03-14 01:35:36,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 306 transitions, 1555 flow [2025-03-14 01:35:36,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:35:36,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:35:36,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 880 transitions. [2025-03-14 01:35:36,414 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2025-03-14 01:35:36,414 INFO L175 Difference]: Start difference. First operand has 239 places, 240 transitions, 1000 flow. Second operand 6 states and 880 transitions. [2025-03-14 01:35:36,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 306 transitions, 1555 flow [2025-03-14 01:35:36,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 306 transitions, 1509 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-03-14 01:35:36,423 INFO L231 Difference]: Finished difference. Result has 230 places, 281 transitions, 1370 flow [2025-03-14 01:35:36,424 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=954, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1370, PETRI_PLACES=230, PETRI_TRANSITIONS=281} [2025-03-14 01:35:36,424 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 70 predicate places. [2025-03-14 01:35:36,425 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 281 transitions, 1370 flow [2025-03-14 01:35:36,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:36,425 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:36,425 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:36,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-14 01:35:36,426 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:35:36,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:36,426 INFO L85 PathProgramCache]: Analyzing trace with hash 590300793, now seen corresponding path program 1 times [2025-03-14 01:35:36,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:36,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324676800] [2025-03-14 01:35:36,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:36,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:36,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-03-14 01:35:36,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-03-14 01:35:36,451 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:36,451 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:36,779 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:35:36,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:36,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324676800] [2025-03-14 01:35:36,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324676800] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:36,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:36,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:35:36,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924158037] [2025-03-14 01:35:36,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:36,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:35:36,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:36,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:35:36,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:35:37,106 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 160 [2025-03-14 01:35:37,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 281 transitions, 1370 flow. Second operand has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:37,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:37,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 160 [2025-03-14 01:35:37,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:37,451 INFO L124 PetriNetUnfolderBase]: 569/2203 cut-off events. [2025-03-14 01:35:37,451 INFO L125 PetriNetUnfolderBase]: For 2421/2481 co-relation queries the response was YES. [2025-03-14 01:35:37,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5833 conditions, 2203 events. 569/2203 cut-off events. For 2421/2481 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 17202 event pairs, 130 based on Foata normal form. 12/2129 useless extension candidates. Maximal degree in co-relation 5572. Up to 803 conditions per place. [2025-03-14 01:35:37,463 INFO L140 encePairwiseOnDemand]: 145/160 looper letters, 118 selfloop transitions, 78 changer transitions 11/375 dead transitions. [2025-03-14 01:35:37,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 375 transitions, 2308 flow [2025-03-14 01:35:37,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:35:37,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:35:37,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 866 transitions. [2025-03-14 01:35:37,466 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9020833333333333 [2025-03-14 01:35:37,466 INFO L175 Difference]: Start difference. First operand has 230 places, 281 transitions, 1370 flow. Second operand 6 states and 866 transitions. [2025-03-14 01:35:37,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 375 transitions, 2308 flow [2025-03-14 01:35:37,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 375 transitions, 2306 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-03-14 01:35:37,481 INFO L231 Difference]: Finished difference. Result has 239 places, 329 transitions, 1974 flow [2025-03-14 01:35:37,482 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=1368, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1974, PETRI_PLACES=239, PETRI_TRANSITIONS=329} [2025-03-14 01:35:37,483 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 79 predicate places. [2025-03-14 01:35:37,484 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 329 transitions, 1974 flow [2025-03-14 01:35:37,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:37,484 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:37,484 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:37,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-14 01:35:37,484 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:35:37,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:37,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1412083614, now seen corresponding path program 1 times [2025-03-14 01:35:37,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:37,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252812187] [2025-03-14 01:35:37,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:35:37,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:37,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-03-14 01:35:37,562 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-03-14 01:35:37,562 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:35:37,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:41,461 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:35:41,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:41,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252812187] [2025-03-14 01:35:41,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252812187] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:41,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:41,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-14 01:35:41,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34209344] [2025-03-14 01:35:41,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:41,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 01:35:41,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:41,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 01:35:41,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2025-03-14 01:35:42,801 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2025-03-14 01:35:42,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 329 transitions, 1974 flow. Second operand has 13 states, 13 states have (on average 121.07692307692308) internal successors, (1574), 13 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:42,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:42,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2025-03-14 01:35:42,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:44,011 INFO L124 PetriNetUnfolderBase]: 1232/4499 cut-off events. [2025-03-14 01:35:44,011 INFO L125 PetriNetUnfolderBase]: For 9411/9652 co-relation queries the response was YES. [2025-03-14 01:35:44,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14333 conditions, 4499 events. 1232/4499 cut-off events. For 9411/9652 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 42035 event pairs, 133 based on Foata normal form. 159/4607 useless extension candidates. Maximal degree in co-relation 14056. Up to 884 conditions per place. [2025-03-14 01:35:44,032 INFO L140 encePairwiseOnDemand]: 133/160 looper letters, 364 selfloop transitions, 83 changer transitions 93/697 dead transitions. [2025-03-14 01:35:44,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 697 transitions, 6113 flow [2025-03-14 01:35:44,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-14 01:35:44,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-03-14 01:35:44,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2449 transitions. [2025-03-14 01:35:44,037 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8055921052631579 [2025-03-14 01:35:44,038 INFO L175 Difference]: Start difference. First operand has 239 places, 329 transitions, 1974 flow. Second operand 19 states and 2449 transitions. [2025-03-14 01:35:44,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 697 transitions, 6113 flow [2025-03-14 01:35:44,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 697 transitions, 6027 flow, removed 43 selfloop flow, removed 0 redundant places. [2025-03-14 01:35:44,068 INFO L231 Difference]: Finished difference. Result has 268 places, 402 transitions, 3022 flow [2025-03-14 01:35:44,069 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=1940, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3022, PETRI_PLACES=268, PETRI_TRANSITIONS=402} [2025-03-14 01:35:44,069 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 108 predicate places. [2025-03-14 01:35:44,070 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 402 transitions, 3022 flow [2025-03-14 01:35:44,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 121.07692307692308) internal successors, (1574), 13 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:44,071 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:44,071 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:44,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-14 01:35:44,071 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:35:44,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:44,073 INFO L85 PathProgramCache]: Analyzing trace with hash 823331198, now seen corresponding path program 2 times [2025-03-14 01:35:44,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:44,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383195084] [2025-03-14 01:35:44,073 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:35:44,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:44,083 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 168 statements into 2 equivalence classes. [2025-03-14 01:35:44,088 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 118 of 168 statements. [2025-03-14 01:35:44,089 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:35:44,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:44,568 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:35:44,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:44,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383195084] [2025-03-14 01:35:44,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383195084] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:44,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:44,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-14 01:35:44,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992277100] [2025-03-14 01:35:44,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:44,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 01:35:44,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:44,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 01:35:44,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2025-03-14 01:35:45,520 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 160 [2025-03-14 01:35:45,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 402 transitions, 3022 flow. Second operand has 10 states, 10 states have (on average 127.1) internal successors, (1271), 10 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:45,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:45,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 160 [2025-03-14 01:35:45,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:46,424 INFO L124 PetriNetUnfolderBase]: 1320/4786 cut-off events. [2025-03-14 01:35:46,424 INFO L125 PetriNetUnfolderBase]: For 14982/15281 co-relation queries the response was YES. [2025-03-14 01:35:46,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17882 conditions, 4786 events. 1320/4786 cut-off events. For 14982/15281 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 45876 event pairs, 225 based on Foata normal form. 253/4990 useless extension candidates. Maximal degree in co-relation 17593. Up to 1061 conditions per place. [2025-03-14 01:35:46,453 INFO L140 encePairwiseOnDemand]: 139/160 looper letters, 226 selfloop transitions, 151 changer transitions 77/617 dead transitions. [2025-03-14 01:35:46,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 617 transitions, 5914 flow [2025-03-14 01:35:46,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 01:35:46,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 01:35:46,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1766 transitions. [2025-03-14 01:35:46,455 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8490384615384615 [2025-03-14 01:35:46,455 INFO L175 Difference]: Start difference. First operand has 268 places, 402 transitions, 3022 flow. Second operand 13 states and 1766 transitions. [2025-03-14 01:35:46,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 617 transitions, 5914 flow [2025-03-14 01:35:46,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 617 transitions, 5897 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-03-14 01:35:46,510 INFO L231 Difference]: Finished difference. Result has 279 places, 441 transitions, 3949 flow [2025-03-14 01:35:46,510 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=3007, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3949, PETRI_PLACES=279, PETRI_TRANSITIONS=441} [2025-03-14 01:35:46,511 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 119 predicate places. [2025-03-14 01:35:46,511 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 441 transitions, 3949 flow [2025-03-14 01:35:46,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 127.1) internal successors, (1271), 10 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:46,511 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:46,512 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:46,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-14 01:35:46,512 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:35:46,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:46,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1791186490, now seen corresponding path program 3 times [2025-03-14 01:35:46,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:46,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457730307] [2025-03-14 01:35:46,513 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 01:35:46,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:46,524 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 168 statements into 11 equivalence classes. [2025-03-14 01:35:46,530 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 118 of 168 statements. [2025-03-14 01:35:46,530 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 01:35:46,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:46,945 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:35:46,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:46,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457730307] [2025-03-14 01:35:46,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457730307] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:46,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:46,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-14 01:35:46,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114507463] [2025-03-14 01:35:46,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:46,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 01:35:46,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:46,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 01:35:46,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2025-03-14 01:35:47,726 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 160 [2025-03-14 01:35:47,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 441 transitions, 3949 flow. Second operand has 10 states, 10 states have (on average 127.1) internal successors, (1271), 10 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:47,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:47,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 160 [2025-03-14 01:35:47,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:49,034 INFO L124 PetriNetUnfolderBase]: 1911/6741 cut-off events. [2025-03-14 01:35:49,034 INFO L125 PetriNetUnfolderBase]: For 33584/33962 co-relation queries the response was YES. [2025-03-14 01:35:49,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28636 conditions, 6741 events. 1911/6741 cut-off events. For 33584/33962 co-relation queries the response was YES. Maximal size of possible extension queue 452. Compared 69644 event pairs, 203 based on Foata normal form. 238/6909 useless extension candidates. Maximal degree in co-relation 28340. Up to 1283 conditions per place. [2025-03-14 01:35:49,078 INFO L140 encePairwiseOnDemand]: 141/160 looper letters, 420 selfloop transitions, 149 changer transitions 86/818 dead transitions. [2025-03-14 01:35:49,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 818 transitions, 9437 flow [2025-03-14 01:35:49,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-14 01:35:49,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-03-14 01:35:49,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2162 transitions. [2025-03-14 01:35:49,080 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.84453125 [2025-03-14 01:35:49,080 INFO L175 Difference]: Start difference. First operand has 279 places, 441 transitions, 3949 flow. Second operand 16 states and 2162 transitions. [2025-03-14 01:35:49,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 818 transitions, 9437 flow [2025-03-14 01:35:49,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 818 transitions, 9364 flow, removed 21 selfloop flow, removed 4 redundant places. [2025-03-14 01:35:49,239 INFO L231 Difference]: Finished difference. Result has 298 places, 529 transitions, 6013 flow [2025-03-14 01:35:49,241 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=3920, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6013, PETRI_PLACES=298, PETRI_TRANSITIONS=529} [2025-03-14 01:35:49,241 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 138 predicate places. [2025-03-14 01:35:49,241 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 529 transitions, 6013 flow [2025-03-14 01:35:49,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 127.1) internal successors, (1271), 10 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:49,242 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:49,242 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:49,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-14 01:35:49,243 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:35:49,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:49,243 INFO L85 PathProgramCache]: Analyzing trace with hash 2033455044, now seen corresponding path program 4 times [2025-03-14 01:35:49,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:49,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006519572] [2025-03-14 01:35:49,244 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 01:35:49,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:49,257 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 168 statements into 2 equivalence classes. [2025-03-14 01:35:49,284 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 168 of 168 statements. [2025-03-14 01:35:49,285 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-14 01:35:49,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:50,262 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:35:50,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:50,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006519572] [2025-03-14 01:35:50,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006519572] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:50,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:50,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-03-14 01:35:50,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571233400] [2025-03-14 01:35:50,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:50,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-14 01:35:50,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:50,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-14 01:35:50,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2025-03-14 01:35:51,793 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2025-03-14 01:35:51,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 529 transitions, 6013 flow. Second operand has 16 states, 16 states have (on average 120.6875) internal successors, (1931), 16 states have internal predecessors, (1931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:51,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:51,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2025-03-14 01:35:51,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:53,448 INFO L124 PetriNetUnfolderBase]: 1925/6793 cut-off events. [2025-03-14 01:35:53,448 INFO L125 PetriNetUnfolderBase]: For 47489/47825 co-relation queries the response was YES. [2025-03-14 01:35:53,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31602 conditions, 6793 events. 1925/6793 cut-off events. For 47489/47825 co-relation queries the response was YES. Maximal size of possible extension queue 463. Compared 70258 event pairs, 300 based on Foata normal form. 209/6927 useless extension candidates. Maximal degree in co-relation 31479. Up to 1507 conditions per place. [2025-03-14 01:35:53,491 INFO L140 encePairwiseOnDemand]: 134/160 looper letters, 370 selfloop transitions, 189 changer transitions 26/742 dead transitions. [2025-03-14 01:35:53,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 742 transitions, 9382 flow [2025-03-14 01:35:53,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-14 01:35:53,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-03-14 01:35:53,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2301 transitions. [2025-03-14 01:35:53,493 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7989583333333333 [2025-03-14 01:35:53,493 INFO L175 Difference]: Start difference. First operand has 298 places, 529 transitions, 6013 flow. Second operand 18 states and 2301 transitions. [2025-03-14 01:35:53,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 742 transitions, 9382 flow [2025-03-14 01:35:53,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 742 transitions, 9333 flow, removed 19 selfloop flow, removed 5 redundant places. [2025-03-14 01:35:53,690 INFO L231 Difference]: Finished difference. Result has 312 places, 555 transitions, 7086 flow [2025-03-14 01:35:53,690 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=5968, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=163, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7086, PETRI_PLACES=312, PETRI_TRANSITIONS=555} [2025-03-14 01:35:53,691 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 152 predicate places. [2025-03-14 01:35:53,691 INFO L471 AbstractCegarLoop]: Abstraction has has 312 places, 555 transitions, 7086 flow [2025-03-14 01:35:53,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 120.6875) internal successors, (1931), 16 states have internal predecessors, (1931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:53,691 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:53,692 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:53,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-14 01:35:53,692 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:35:53,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:53,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1636116222, now seen corresponding path program 5 times [2025-03-14 01:35:53,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:53,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778852094] [2025-03-14 01:35:53,693 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 01:35:53,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:53,702 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 168 statements into 11 equivalence classes. [2025-03-14 01:35:53,716 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 168 of 168 statements. [2025-03-14 01:35:53,716 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-14 01:35:53,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:35:54,381 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:35:54,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:35:54,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778852094] [2025-03-14 01:35:54,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778852094] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:35:54,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:35:54,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-14 01:35:54,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609616978] [2025-03-14 01:35:54,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:35:54,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 01:35:54,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:35:54,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 01:35:54,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-03-14 01:35:55,416 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 160 [2025-03-14 01:35:55,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 555 transitions, 7086 flow. Second operand has 10 states, 10 states have (on average 127.1) internal successors, (1271), 10 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:55,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:35:55,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 160 [2025-03-14 01:35:55,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:35:57,039 INFO L124 PetriNetUnfolderBase]: 2230/7678 cut-off events. [2025-03-14 01:35:57,040 INFO L125 PetriNetUnfolderBase]: For 71873/72255 co-relation queries the response was YES. [2025-03-14 01:35:57,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39234 conditions, 7678 events. 2230/7678 cut-off events. For 71873/72255 co-relation queries the response was YES. Maximal size of possible extension queue 522. Compared 81353 event pairs, 300 based on Foata normal form. 208/7796 useless extension candidates. Maximal degree in co-relation 38924. Up to 1492 conditions per place. [2025-03-14 01:35:57,100 INFO L140 encePairwiseOnDemand]: 142/160 looper letters, 498 selfloop transitions, 175 changer transitions 42/878 dead transitions. [2025-03-14 01:35:57,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 878 transitions, 12571 flow [2025-03-14 01:35:57,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-14 01:35:57,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-14 01:35:57,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2033 transitions. [2025-03-14 01:35:57,103 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8470833333333333 [2025-03-14 01:35:57,103 INFO L175 Difference]: Start difference. First operand has 312 places, 555 transitions, 7086 flow. Second operand 15 states and 2033 transitions. [2025-03-14 01:35:57,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 878 transitions, 12571 flow [2025-03-14 01:35:57,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 878 transitions, 12387 flow, removed 32 selfloop flow, removed 11 redundant places. [2025-03-14 01:35:57,515 INFO L231 Difference]: Finished difference. Result has 325 places, 616 transitions, 8765 flow [2025-03-14 01:35:57,516 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=6947, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=555, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=8765, PETRI_PLACES=325, PETRI_TRANSITIONS=616} [2025-03-14 01:35:57,516 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 165 predicate places. [2025-03-14 01:35:57,516 INFO L471 AbstractCegarLoop]: Abstraction has has 325 places, 616 transitions, 8765 flow [2025-03-14 01:35:57,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 127.1) internal successors, (1271), 10 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:35:57,517 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:35:57,517 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:35:57,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-14 01:35:57,517 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:35:57,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:35:57,518 INFO L85 PathProgramCache]: Analyzing trace with hash 258035696, now seen corresponding path program 6 times [2025-03-14 01:35:57,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:35:57,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044939306] [2025-03-14 01:35:57,518 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 01:35:57,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:35:57,529 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 168 statements into 11 equivalence classes. [2025-03-14 01:35:57,545 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 118 of 168 statements. [2025-03-14 01:35:57,545 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-14 01:35:57,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:00,885 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:36:00,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:00,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044939306] [2025-03-14 01:36:00,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044939306] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:00,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:00,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:00,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464561201] [2025-03-14 01:36:00,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:00,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-14 01:36:00,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:00,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-14 01:36:00,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2025-03-14 01:36:03,096 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2025-03-14 01:36:03,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 616 transitions, 8765 flow. Second operand has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:36:03,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:03,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2025-03-14 01:36:03,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:05,299 INFO L124 PetriNetUnfolderBase]: 2256/7873 cut-off events. [2025-03-14 01:36:05,300 INFO L125 PetriNetUnfolderBase]: For 86388/86793 co-relation queries the response was YES. [2025-03-14 01:36:05,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41706 conditions, 7873 events. 2256/7873 cut-off events. For 86388/86793 co-relation queries the response was YES. Maximal size of possible extension queue 529. Compared 84349 event pairs, 358 based on Foata normal form. 320/8115 useless extension candidates. Maximal degree in co-relation 41447. Up to 1529 conditions per place. [2025-03-14 01:36:05,363 INFO L140 encePairwiseOnDemand]: 135/160 looper letters, 248 selfloop transitions, 312 changer transitions 48/765 dead transitions. [2025-03-14 01:36:05,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 765 transitions, 11599 flow [2025-03-14 01:36:05,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-14 01:36:05,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-03-14 01:36:05,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2168 transitions. [2025-03-14 01:36:05,365 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7970588235294118 [2025-03-14 01:36:05,365 INFO L175 Difference]: Start difference. First operand has 325 places, 616 transitions, 8765 flow. Second operand 17 states and 2168 transitions. [2025-03-14 01:36:05,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 765 transitions, 11599 flow [2025-03-14 01:36:05,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 765 transitions, 11324 flow, removed 100 selfloop flow, removed 7 redundant places. [2025-03-14 01:36:05,800 INFO L231 Difference]: Finished difference. Result has 337 places, 616 transitions, 9285 flow [2025-03-14 01:36:05,801 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=8518, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=304, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=9285, PETRI_PLACES=337, PETRI_TRANSITIONS=616} [2025-03-14 01:36:05,801 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 177 predicate places. [2025-03-14 01:36:05,801 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 616 transitions, 9285 flow [2025-03-14 01:36:05,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:36:05,802 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:05,802 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:05,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-14 01:36:05,802 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:36:05,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:05,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1087354441, now seen corresponding path program 1 times [2025-03-14 01:36:05,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:05,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121884442] [2025-03-14 01:36:05,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:36:05,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:05,813 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-03-14 01:36:05,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-03-14 01:36:05,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:36:05,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:09,599 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:36:09,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:09,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121884442] [2025-03-14 01:36:09,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121884442] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 01:36:09,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861783287] [2025-03-14 01:36:09,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:36:09,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:36:09,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:36:09,603 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 01:36:09,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-14 01:36:09,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-03-14 01:36:09,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-03-14 01:36:09,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:36:09,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:09,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 61 conjuncts are in the unsatisfiable core [2025-03-14 01:36:09,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 01:36:10,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2025-03-14 01:36:10,145 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-03-14 01:36:10,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 11 [2025-03-14 01:36:10,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2025-03-14 01:36:10,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2025-03-14 01:36:10,172 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 01:36:10,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2025-03-14 01:36:10,186 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 01:36:10,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2025-03-14 01:36:10,211 INFO L349 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2025-03-14 01:36:10,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 71 treesize of output 60 [2025-03-14 01:36:10,219 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 233 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 01:36:10,219 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 01:36:10,420 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-03-14 01:36:10,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861783287] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 01:36:10,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 01:36:10,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13, 27] total 36 [2025-03-14 01:36:10,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088812217] [2025-03-14 01:36:10,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:10,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-14 01:36:10,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:10,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-14 01:36:10,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1217, Unknown=0, NotChecked=0, Total=1332 [2025-03-14 01:36:11,160 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 160 [2025-03-14 01:36:11,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 616 transitions, 9285 flow. Second operand has 11 states, 11 states have (on average 131.36363636363637) internal successors, (1445), 11 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:36:11,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:11,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 160 [2025-03-14 01:36:11,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:12,652 INFO L124 PetriNetUnfolderBase]: 1924/7089 cut-off events. [2025-03-14 01:36:12,652 INFO L125 PetriNetUnfolderBase]: For 94064/94776 co-relation queries the response was YES. [2025-03-14 01:36:12,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38975 conditions, 7089 events. 1924/7089 cut-off events. For 94064/94776 co-relation queries the response was YES. Maximal size of possible extension queue 473. Compared 76586 event pairs, 150 based on Foata normal form. 260/7273 useless extension candidates. Maximal degree in co-relation 38656. Up to 1329 conditions per place. [2025-03-14 01:36:12,707 INFO L140 encePairwiseOnDemand]: 143/160 looper letters, 484 selfloop transitions, 125 changer transitions 65/898 dead transitions. [2025-03-14 01:36:12,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 898 transitions, 14699 flow [2025-03-14 01:36:12,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-14 01:36:12,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-03-14 01:36:12,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2471 transitions. [2025-03-14 01:36:12,709 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8579861111111111 [2025-03-14 01:36:12,709 INFO L175 Difference]: Start difference. First operand has 337 places, 616 transitions, 9285 flow. Second operand 18 states and 2471 transitions. [2025-03-14 01:36:12,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 898 transitions, 14699 flow [2025-03-14 01:36:13,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 898 transitions, 14100 flow, removed 18 selfloop flow, removed 12 redundant places. [2025-03-14 01:36:13,103 INFO L231 Difference]: Finished difference. Result has 355 places, 679 transitions, 10091 flow [2025-03-14 01:36:13,104 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=8827, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=10091, PETRI_PLACES=355, PETRI_TRANSITIONS=679} [2025-03-14 01:36:13,104 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 195 predicate places. [2025-03-14 01:36:13,104 INFO L471 AbstractCegarLoop]: Abstraction has has 355 places, 679 transitions, 10091 flow [2025-03-14 01:36:13,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 131.36363636363637) internal successors, (1445), 11 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:36:13,105 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:13,105 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:13,111 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-14 01:36:13,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-14 01:36:13,305 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:36:13,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:13,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1182646522, now seen corresponding path program 7 times [2025-03-14 01:36:13,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:13,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184818790] [2025-03-14 01:36:13,306 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 01:36:13,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:13,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-03-14 01:36:13,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-03-14 01:36:13,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:36:13,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:18,797 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-14 01:36:18,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:18,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184818790] [2025-03-14 01:36:18,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184818790] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 01:36:18,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954837534] [2025-03-14 01:36:18,798 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 01:36:18,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:36:18,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:36:18,802 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-14 01:36:18,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-14 01:36:18,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-03-14 01:36:18,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-03-14 01:36:18,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:36:18,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:18,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 63 conjuncts are in the unsatisfiable core [2025-03-14 01:36:18,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 01:36:19,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2025-03-14 01:36:19,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2025-03-14 01:36:19,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2025-03-14 01:36:19,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2025-03-14 01:36:19,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2025-03-14 01:36:19,427 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-03-14 01:36:19,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 11 [2025-03-14 01:36:19,459 INFO L349 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2025-03-14 01:36:19,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 63 treesize of output 71 [2025-03-14 01:36:19,527 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 01:36:19,527 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 01:36:19,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2025-03-14 01:36:20,090 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-03-14 01:36:20,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954837534] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 01:36:20,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 01:36:20,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13, 25] total 44 [2025-03-14 01:36:20,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598675391] [2025-03-14 01:36:20,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:20,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-14 01:36:20,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:20,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-14 01:36:20,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1803, Unknown=0, NotChecked=0, Total=1980 [2025-03-14 01:36:21,537 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 160 [2025-03-14 01:36:21,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 679 transitions, 10091 flow. Second operand has 11 states, 11 states have (on average 124.9090909090909) internal successors, (1374), 11 states have internal predecessors, (1374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:36:21,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:21,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 160 [2025-03-14 01:36:21,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:24,121 INFO L124 PetriNetUnfolderBase]: 2999/9610 cut-off events. [2025-03-14 01:36:24,121 INFO L125 PetriNetUnfolderBase]: For 128992/129644 co-relation queries the response was YES. [2025-03-14 01:36:24,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56906 conditions, 9610 events. 2999/9610 cut-off events. For 128992/129644 co-relation queries the response was YES. Maximal size of possible extension queue 626. Compared 102363 event pairs, 278 based on Foata normal form. 339/9863 useless extension candidates. Maximal degree in co-relation 56577. Up to 1890 conditions per place. [2025-03-14 01:36:24,195 INFO L140 encePairwiseOnDemand]: 132/160 looper letters, 505 selfloop transitions, 402 changer transitions 102/1162 dead transitions. [2025-03-14 01:36:24,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 1162 transitions, 19328 flow [2025-03-14 01:36:24,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-14 01:36:24,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-03-14 01:36:24,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2278 transitions. [2025-03-14 01:36:24,197 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8375 [2025-03-14 01:36:24,197 INFO L175 Difference]: Start difference. First operand has 355 places, 679 transitions, 10091 flow. Second operand 17 states and 2278 transitions. [2025-03-14 01:36:24,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 1162 transitions, 19328 flow [2025-03-14 01:36:25,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 1162 transitions, 19189 flow, removed 53 selfloop flow, removed 3 redundant places. [2025-03-14 01:36:25,035 INFO L231 Difference]: Finished difference. Result has 378 places, 806 transitions, 13770 flow [2025-03-14 01:36:25,036 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=9998, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=679, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=269, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=13770, PETRI_PLACES=378, PETRI_TRANSITIONS=806} [2025-03-14 01:36:25,037 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 218 predicate places. [2025-03-14 01:36:25,037 INFO L471 AbstractCegarLoop]: Abstraction has has 378 places, 806 transitions, 13770 flow [2025-03-14 01:36:25,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 124.9090909090909) internal successors, (1374), 11 states have internal predecessors, (1374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:36:25,038 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:25,038 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:25,045 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-14 01:36:25,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-14 01:36:25,239 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:36:25,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:25,240 INFO L85 PathProgramCache]: Analyzing trace with hash -2039555800, now seen corresponding path program 8 times [2025-03-14 01:36:25,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:25,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487500757] [2025-03-14 01:36:25,240 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:36:25,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:25,250 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 168 statements into 2 equivalence classes. [2025-03-14 01:36:25,254 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 116 of 168 statements. [2025-03-14 01:36:25,254 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:36:25,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:25,638 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2025-03-14 01:36:25,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:25,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487500757] [2025-03-14 01:36:25,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487500757] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:25,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:25,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-14 01:36:25,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65335456] [2025-03-14 01:36:25,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:25,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-14 01:36:25,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:25,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-14 01:36:25,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2025-03-14 01:36:26,595 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 160 [2025-03-14 01:36:26,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 806 transitions, 13770 flow. Second operand has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:36:26,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:26,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 160 [2025-03-14 01:36:26,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:29,206 INFO L124 PetriNetUnfolderBase]: 2606/9032 cut-off events. [2025-03-14 01:36:29,206 INFO L125 PetriNetUnfolderBase]: For 142918/143435 co-relation queries the response was YES. [2025-03-14 01:36:29,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56881 conditions, 9032 events. 2606/9032 cut-off events. For 142918/143435 co-relation queries the response was YES. Maximal size of possible extension queue 593. Compared 98042 event pairs, 326 based on Foata normal form. 330/9266 useless extension candidates. Maximal degree in co-relation 56541. Up to 1739 conditions per place. [2025-03-14 01:36:29,277 INFO L140 encePairwiseOnDemand]: 142/160 looper letters, 517 selfloop transitions, 318 changer transitions 38/1042 dead transitions. [2025-03-14 01:36:29,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 1042 transitions, 18900 flow [2025-03-14 01:36:29,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-14 01:36:29,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-14 01:36:29,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1648 transitions. [2025-03-14 01:36:29,278 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8583333333333333 [2025-03-14 01:36:29,278 INFO L175 Difference]: Start difference. First operand has 378 places, 806 transitions, 13770 flow. Second operand 12 states and 1648 transitions. [2025-03-14 01:36:29,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 1042 transitions, 18900 flow [2025-03-14 01:36:29,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 1042 transitions, 18396 flow, removed 66 selfloop flow, removed 2 redundant places. [2025-03-14 01:36:29,937 INFO L231 Difference]: Finished difference. Result has 393 places, 824 transitions, 14758 flow [2025-03-14 01:36:29,937 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=13294, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=806, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=300, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14758, PETRI_PLACES=393, PETRI_TRANSITIONS=824} [2025-03-14 01:36:29,938 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 233 predicate places. [2025-03-14 01:36:29,938 INFO L471 AbstractCegarLoop]: Abstraction has has 393 places, 824 transitions, 14758 flow [2025-03-14 01:36:29,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:36:29,938 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:29,938 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:29,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-14 01:36:29,938 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:36:29,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:29,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1671224048, now seen corresponding path program 9 times [2025-03-14 01:36:29,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:29,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463440278] [2025-03-14 01:36:29,940 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 01:36:29,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:29,948 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 168 statements into 11 equivalence classes. [2025-03-14 01:36:29,959 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 116 of 168 statements. [2025-03-14 01:36:29,959 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 01:36:29,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:34,508 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2025-03-14 01:36:34,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:34,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463440278] [2025-03-14 01:36:34,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463440278] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:34,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:34,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:34,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207920021] [2025-03-14 01:36:34,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:34,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-14 01:36:34,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:34,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-14 01:36:34,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2025-03-14 01:36:38,094 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2025-03-14 01:36:38,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 824 transitions, 14758 flow. Second operand has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:36:38,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:38,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2025-03-14 01:36:38,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:43,013 INFO L124 PetriNetUnfolderBase]: 3221/10873 cut-off events. [2025-03-14 01:36:43,013 INFO L125 PetriNetUnfolderBase]: For 211393/212000 co-relation queries the response was YES. [2025-03-14 01:36:43,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73077 conditions, 10873 events. 3221/10873 cut-off events. For 211393/212000 co-relation queries the response was YES. Maximal size of possible extension queue 666. Compared 120163 event pairs, 611 based on Foata normal form. 248/10991 useless extension candidates. Maximal degree in co-relation 72730. Up to 2557 conditions per place. [2025-03-14 01:36:43,113 INFO L140 encePairwiseOnDemand]: 136/160 looper letters, 577 selfloop transitions, 360 changer transitions 47/1147 dead transitions. [2025-03-14 01:36:43,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 1147 transitions, 22928 flow [2025-03-14 01:36:43,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-14 01:36:43,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-14 01:36:43,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2692 transitions. [2025-03-14 01:36:43,115 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8011904761904762 [2025-03-14 01:36:43,115 INFO L175 Difference]: Start difference. First operand has 393 places, 824 transitions, 14758 flow. Second operand 21 states and 2692 transitions. [2025-03-14 01:36:43,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 1147 transitions, 22928 flow [2025-03-14 01:36:44,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 1147 transitions, 22437 flow, removed 100 selfloop flow, removed 6 redundant places. [2025-03-14 01:36:44,240 INFO L231 Difference]: Finished difference. Result has 419 places, 935 transitions, 18260 flow [2025-03-14 01:36:44,241 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=14485, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=824, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=253, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=18260, PETRI_PLACES=419, PETRI_TRANSITIONS=935} [2025-03-14 01:36:44,242 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 259 predicate places. [2025-03-14 01:36:44,242 INFO L471 AbstractCegarLoop]: Abstraction has has 419 places, 935 transitions, 18260 flow [2025-03-14 01:36:44,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:36:44,242 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:44,242 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:44,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-14 01:36:44,243 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:36:44,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:44,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1690936226, now seen corresponding path program 10 times [2025-03-14 01:36:44,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:44,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133226068] [2025-03-14 01:36:44,245 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 01:36:44,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:44,256 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 168 statements into 2 equivalence classes. [2025-03-14 01:36:44,268 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 168 of 168 statements. [2025-03-14 01:36:44,269 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-14 01:36:44,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:44,898 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2025-03-14 01:36:44,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:44,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133226068] [2025-03-14 01:36:44,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133226068] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:44,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:44,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-14 01:36:44,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956404037] [2025-03-14 01:36:44,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:44,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-14 01:36:44,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:44,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-14 01:36:44,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2025-03-14 01:36:46,456 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2025-03-14 01:36:46,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 935 transitions, 18260 flow. Second operand has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:36:46,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:36:46,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2025-03-14 01:36:46,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:36:50,404 INFO L124 PetriNetUnfolderBase]: 4086/13616 cut-off events. [2025-03-14 01:36:50,404 INFO L125 PetriNetUnfolderBase]: For 287785/288547 co-relation queries the response was YES. [2025-03-14 01:36:50,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95731 conditions, 13616 events. 4086/13616 cut-off events. For 287785/288547 co-relation queries the response was YES. Maximal size of possible extension queue 855. Compared 156854 event pairs, 604 based on Foata normal form. 339/13799 useless extension candidates. Maximal degree in co-relation 95373. Up to 2842 conditions per place. [2025-03-14 01:36:50,573 INFO L140 encePairwiseOnDemand]: 137/160 looper letters, 827 selfloop transitions, 423 changer transitions 43/1456 dead transitions. [2025-03-14 01:36:50,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 1456 transitions, 30923 flow [2025-03-14 01:36:50,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-14 01:36:50,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-03-14 01:36:50,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2852 transitions. [2025-03-14 01:36:50,575 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8102272727272727 [2025-03-14 01:36:50,575 INFO L175 Difference]: Start difference. First operand has 419 places, 935 transitions, 18260 flow. Second operand 22 states and 2852 transitions. [2025-03-14 01:36:50,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 1456 transitions, 30923 flow [2025-03-14 01:36:52,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 1456 transitions, 30336 flow, removed 141 selfloop flow, removed 4 redundant places. [2025-03-14 01:36:52,741 INFO L231 Difference]: Finished difference. Result has 454 places, 1080 transitions, 23723 flow [2025-03-14 01:36:52,742 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=17769, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=935, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=280, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=23723, PETRI_PLACES=454, PETRI_TRANSITIONS=1080} [2025-03-14 01:36:52,742 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 294 predicate places. [2025-03-14 01:36:52,742 INFO L471 AbstractCegarLoop]: Abstraction has has 454 places, 1080 transitions, 23723 flow [2025-03-14 01:36:52,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:36:52,743 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:36:52,743 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:36:52,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-14 01:36:52,743 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 01:36:52,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:36:52,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1108032496, now seen corresponding path program 11 times [2025-03-14 01:36:52,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:36:52,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489113332] [2025-03-14 01:36:52,745 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 01:36:52,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:36:52,757 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 168 statements into 11 equivalence classes. [2025-03-14 01:36:52,766 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 168 of 168 statements. [2025-03-14 01:36:52,767 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-14 01:36:52,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:36:53,318 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2025-03-14 01:36:53,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:36:53,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489113332] [2025-03-14 01:36:53,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489113332] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:36:53,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:36:53,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-14 01:36:53,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657538436] [2025-03-14 01:36:53,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:36:53,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-14 01:36:53,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:36:53,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-14 01:36:53,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110