./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 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_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-?-8fc3dc6-m [2025-03-17 11:04:26,275 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:04:26,327 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-17 11:04:26,330 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:04:26,331 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:04:26,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:04:26,349 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:04:26,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:04:26,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:04:26,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:04:26,351 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:04:26,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:04:26,352 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:04:26,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:04:26,352 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:04:26,352 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:04:26,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:04:26,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:04:26,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:04:26,353 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:04:26,353 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:04:26,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:04:26,354 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-17 11:04:26,354 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:04:26,354 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:04:26,354 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:04:26,354 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:04:26,354 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:04:26,354 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:04:26,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:04:26,355 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:04:26,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:04:26,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:04:26,355 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:04:26,355 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 11:04:26,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 11:04:26,355 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:04:26,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:04:26,355 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:04:26,355 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:04:26,355 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:04:26,355 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:04:26,355 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 [2025-03-17 11:04:26,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:04:26,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:04:26,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:04:26,612 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:04:26,612 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:04:26,613 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2025-03-17 11:04:27,738 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/863039878/600c285b004b4eb89d91ec9b8f64d3c3/FLAG69be7ec7e [2025-03-17 11:04:28,049 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:04:28,050 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2025-03-17 11:04:28,068 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/863039878/600c285b004b4eb89d91ec9b8f64d3c3/FLAG69be7ec7e [2025-03-17 11:04:28,304 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/863039878/600c285b004b4eb89d91ec9b8f64d3c3 [2025-03-17 11:04:28,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:04:28,307 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:04:28,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:04:28,309 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:04:28,312 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:04:28,313 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:04:28" (1/1) ... [2025-03-17 11:04:28,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29141c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:28, skipping insertion in model container [2025-03-17 11:04:28,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:04:28" (1/1) ... [2025-03-17 11:04:28,344 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:04:28,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:04:28,711 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:04:28,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:04:28,792 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:04:28,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:28 WrapperNode [2025-03-17 11:04:28,793 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:04:28,793 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:04:28,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:04:28,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:04:28,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:28" (1/1) ... [2025-03-17 11:04:28,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:28" (1/1) ... [2025-03-17 11:04:28,823 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 148 [2025-03-17 11:04:28,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:04:28,827 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:04:28,827 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:04:28,827 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:04:28,832 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:28" (1/1) ... [2025-03-17 11:04:28,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:28" (1/1) ... [2025-03-17 11:04:28,835 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:28" (1/1) ... [2025-03-17 11:04:28,835 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:28" (1/1) ... [2025-03-17 11:04:28,841 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:28" (1/1) ... [2025-03-17 11:04:28,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:28" (1/1) ... [2025-03-17 11:04:28,842 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:28" (1/1) ... [2025-03-17 11:04:28,843 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:28" (1/1) ... [2025-03-17 11:04:28,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:04:28,845 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:04:28,845 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:04:28,845 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:04:28,846 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:28" (1/1) ... [2025-03-17 11:04:28,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:04:28,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:04:28,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 11:04:28,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 11:04:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-17 11:04:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-17 11:04:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-17 11:04:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-17 11:04:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 11:04:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-17 11:04:28,895 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-17 11:04:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 11:04:28,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:04:28,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:04:28,896 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 11:04:28,996 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:04:28,997 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:04:29,271 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 11:04:29,271 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:04:29,292 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:04:29,292 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:04:29,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:04:29 BoogieIcfgContainer [2025-03-17 11:04:29,292 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:04:29,295 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:04:29,295 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:04:29,299 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:04:29,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:04:28" (1/3) ... [2025-03-17 11:04:29,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cfecc73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:04:29, skipping insertion in model container [2025-03-17 11:04:29,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:04:28" (2/3) ... [2025-03-17 11:04:29,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cfecc73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:04:29, skipping insertion in model container [2025-03-17 11:04:29,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:04:29" (3/3) ... [2025-03-17 11:04:29,303 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_07-tricky_address2.i [2025-03-17 11:04:29,314 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:04:29,316 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. [2025-03-17 11:04:29,316 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 11:04:29,383 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 11:04:29,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 160 transitions, 324 flow [2025-03-17 11:04:29,479 INFO L124 PetriNetUnfolderBase]: 3/159 cut-off events. [2025-03-17 11:04:29,483 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 11:04:29,486 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. [2025-03-17 11:04:29,487 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 160 transitions, 324 flow [2025-03-17 11:04:29,491 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 159 transitions, 321 flow [2025-03-17 11:04:29,502 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:04:29,512 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;@1f0bc332, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:04:29,512 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-17 11:04:29,539 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 11:04:29,539 INFO L124 PetriNetUnfolderBase]: 3/112 cut-off events. [2025-03-17 11:04:29,540 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 11:04:29,540 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:29,542 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] [2025-03-17 11:04:29,542 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)] === [2025-03-17 11:04:29,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:29,547 INFO L85 PathProgramCache]: Analyzing trace with hash 489885583, now seen corresponding path program 1 times [2025-03-17 11:04:29,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:29,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462340418] [2025-03-17 11:04:29,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:29,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:29,655 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-03-17 11:04:29,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-03-17 11:04:29,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:29,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:29,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:29,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:29,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462340418] [2025-03-17 11:04:29,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462340418] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:29,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:29,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:04:29,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215005118] [2025-03-17 11:04:29,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:29,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:04:29,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:29,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:04:29,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:04:29,977 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 160 [2025-03-17 11:04:29,980 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) [2025-03-17 11:04:29,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:29,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 160 [2025-03-17 11:04:29,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:30,041 INFO L124 PetriNetUnfolderBase]: 7/221 cut-off events. [2025-03-17 11:04:30,041 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 11:04:30,042 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 324 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. [2025-03-17 11:04:30,044 INFO L140 encePairwiseOnDemand]: 155/160 looper letters, 10 selfloop transitions, 2 changer transitions 1/158 dead transitions. [2025-03-17 11:04:30,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 158 transitions, 343 flow [2025-03-17 11:04:30,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:04:30,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:04:30,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2025-03-17 11:04:30,055 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.95 [2025-03-17 11:04:30,057 INFO L175 Difference]: Start difference. First operand has 160 places, 159 transitions, 321 flow. Second operand 3 states and 456 transitions. [2025-03-17 11:04:30,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 158 transitions, 343 flow [2025-03-17 11:04:30,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 158 transitions, 342 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 11:04:30,066 INFO L231 Difference]: Finished difference. Result has 162 places, 157 transitions, 326 flow [2025-03-17 11:04:30,068 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} [2025-03-17 11:04:30,071 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 2 predicate places. [2025-03-17 11:04:30,072 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 157 transitions, 326 flow [2025-03-17 11:04:30,073 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) [2025-03-17 11:04:30,073 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:30,073 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] [2025-03-17 11:04:30,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 11:04:30,073 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)] === [2025-03-17 11:04:30,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:30,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1681250623, now seen corresponding path program 1 times [2025-03-17 11:04:30,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:30,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770923408] [2025-03-17 11:04:30,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:30,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:30,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-17 11:04:30,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-17 11:04:30,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:30,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:30,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:30,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:30,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770923408] [2025-03-17 11:04:30,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770923408] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 11:04:30,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221919547] [2025-03-17 11:04:30,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:30,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:04:30,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:04:30,257 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:04:30,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 11:04:30,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-17 11:04:30,341 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-17 11:04:30,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:30,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:30,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 11:04:30,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:04:30,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:30,409 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:04:30,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:30,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221919547] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:04:30,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 11:04:30,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-17 11:04:30,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114987404] [2025-03-17 11:04:30,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 11:04:30,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:04:30,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:30,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:04:30,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-17 11:04:30,484 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-03-17 11:04:30,485 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) [2025-03-17 11:04:30,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:30,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-03-17 11:04:30,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:30,605 INFO L124 PetriNetUnfolderBase]: 7/227 cut-off events. [2025-03-17 11:04:30,605 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 11:04:30,607 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 319 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. [2025-03-17 11:04:30,608 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 14 selfloop transitions, 9 changer transitions 0/165 dead transitions. [2025-03-17 11:04:30,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 165 transitions, 390 flow [2025-03-17 11:04:30,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 11:04:30,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 11:04:30,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1321 transitions. [2025-03-17 11:04:30,613 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9173611111111111 [2025-03-17 11:04:30,613 INFO L175 Difference]: Start difference. First operand has 162 places, 157 transitions, 326 flow. Second operand 9 states and 1321 transitions. [2025-03-17 11:04:30,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 165 transitions, 390 flow [2025-03-17 11:04:30,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 165 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 11:04:30,617 INFO L231 Difference]: Finished difference. Result has 171 places, 163 transitions, 374 flow [2025-03-17 11:04:30,618 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} [2025-03-17 11:04:30,620 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 11 predicate places. [2025-03-17 11:04:30,620 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 163 transitions, 374 flow [2025-03-17 11:04:30,621 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) [2025-03-17 11:04:30,621 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:30,622 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] [2025-03-17 11:04:30,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 11:04:30,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:04:30,826 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)] === [2025-03-17 11:04:30,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:30,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1189937025, now seen corresponding path program 2 times [2025-03-17 11:04:30,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:30,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143901183] [2025-03-17 11:04:30,827 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:04:30,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:30,841 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 109 statements into 2 equivalence classes. [2025-03-17 11:04:30,852 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 94 of 109 statements. [2025-03-17 11:04:30,852 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:04:30,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:31,325 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-17 11:04:31,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:31,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143901183] [2025-03-17 11:04:31,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143901183] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:31,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:31,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:04:31,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594675508] [2025-03-17 11:04:31,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:31,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:04:31,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:31,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:04:31,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:04:31,791 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 160 [2025-03-17 11:04:31,792 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) [2025-03-17 11:04:31,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:31,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 160 [2025-03-17 11:04:31,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:31,969 INFO L124 PetriNetUnfolderBase]: 129/676 cut-off events. [2025-03-17 11:04:31,969 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-17 11:04:31,971 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 3539 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. [2025-03-17 11:04:31,973 INFO L140 encePairwiseOnDemand]: 149/160 looper letters, 43 selfloop transitions, 22 changer transitions 0/204 dead transitions. [2025-03-17 11:04:31,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 204 transitions, 586 flow [2025-03-17 11:04:31,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:04:31,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:04:31,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 870 transitions. [2025-03-17 11:04:31,976 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.90625 [2025-03-17 11:04:31,976 INFO L175 Difference]: Start difference. First operand has 171 places, 163 transitions, 374 flow. Second operand 6 states and 870 transitions. [2025-03-17 11:04:31,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 204 transitions, 586 flow [2025-03-17 11:04:31,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 204 transitions, 580 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-03-17 11:04:31,982 INFO L231 Difference]: Finished difference. Result has 179 places, 185 transitions, 514 flow [2025-03-17 11:04:31,982 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} [2025-03-17 11:04:31,983 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 19 predicate places. [2025-03-17 11:04:31,983 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 185 transitions, 514 flow [2025-03-17 11:04:31,983 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) [2025-03-17 11:04:31,983 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:31,986 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] [2025-03-17 11:04:31,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 11:04:31,986 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)] === [2025-03-17 11:04:31,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:31,987 INFO L85 PathProgramCache]: Analyzing trace with hash 591590064, now seen corresponding path program 1 times [2025-03-17 11:04:31,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:31,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156483810] [2025-03-17 11:04:31,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:31,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:32,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-03-17 11:04:32,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-03-17 11:04:32,020 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:32,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:32,165 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:32,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:32,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156483810] [2025-03-17 11:04:32,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156483810] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 11:04:32,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25184924] [2025-03-17 11:04:32,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:32,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:04:32,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:04:32,167 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:04:32,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 11:04:32,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-03-17 11:04:32,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-03-17 11:04:32,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:32,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:32,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 11:04:32,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:04:32,286 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:32,286 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:04:32,370 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:32,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25184924] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:04:32,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 11:04:32,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-03-17 11:04:32,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117186503] [2025-03-17 11:04:32,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 11:04:32,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 11:04:32,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:32,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 11:04:32,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-17 11:04:32,402 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-03-17 11:04:32,405 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) [2025-03-17 11:04:32,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:32,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-03-17 11:04:32,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:32,636 INFO L124 PetriNetUnfolderBase]: 41/503 cut-off events. [2025-03-17 11:04:32,636 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2025-03-17 11:04:32,637 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 2247 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. [2025-03-17 11:04:32,638 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 18 selfloop transitions, 21 changer transitions 0/203 dead transitions. [2025-03-17 11:04:32,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 203 transitions, 680 flow [2025-03-17 11:04:32,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-17 11:04:32,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-17 11:04:32,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3067 transitions. [2025-03-17 11:04:32,644 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.912797619047619 [2025-03-17 11:04:32,644 INFO L175 Difference]: Start difference. First operand has 179 places, 185 transitions, 514 flow. Second operand 21 states and 3067 transitions. [2025-03-17 11:04:32,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 203 transitions, 680 flow [2025-03-17 11:04:32,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 203 transitions, 680 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:04:32,651 INFO L231 Difference]: Finished difference. Result has 204 places, 198 transitions, 644 flow [2025-03-17 11:04:32,651 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} [2025-03-17 11:04:32,652 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 44 predicate places. [2025-03-17 11:04:32,652 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 198 transitions, 644 flow [2025-03-17 11:04:32,653 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) [2025-03-17 11:04:32,654 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:32,654 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] [2025-03-17 11:04:32,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 11:04:32,854 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 [2025-03-17 11:04:32,854 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)] === [2025-03-17 11:04:32,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:32,856 INFO L85 PathProgramCache]: Analyzing trace with hash -184331216, now seen corresponding path program 2 times [2025-03-17 11:04:32,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:32,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987739665] [2025-03-17 11:04:32,856 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:04:32,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:32,872 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 137 statements into 2 equivalence classes. [2025-03-17 11:04:32,883 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 102 of 137 statements. [2025-03-17 11:04:32,884 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:04:32,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:33,174 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-17 11:04:33,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:33,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987739665] [2025-03-17 11:04:33,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987739665] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:33,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:33,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:04:33,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115345032] [2025-03-17 11:04:33,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:33,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:04:33,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:33,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:04:33,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:04:33,518 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 160 [2025-03-17 11:04:33,519 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) [2025-03-17 11:04:33,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:33,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 160 [2025-03-17 11:04:33,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:33,764 INFO L124 PetriNetUnfolderBase]: 306/1335 cut-off events. [2025-03-17 11:04:33,765 INFO L125 PetriNetUnfolderBase]: For 286/296 co-relation queries the response was YES. [2025-03-17 11:04:33,768 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 9028 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. [2025-03-17 11:04:33,772 INFO L140 encePairwiseOnDemand]: 145/160 looper letters, 72 selfloop transitions, 36 changer transitions 2/255 dead transitions. [2025-03-17 11:04:33,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 255 transitions, 1016 flow [2025-03-17 11:04:33,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:04:33,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:04:33,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 856 transitions. [2025-03-17 11:04:33,774 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8916666666666667 [2025-03-17 11:04:33,774 INFO L175 Difference]: Start difference. First operand has 204 places, 198 transitions, 644 flow. Second operand 6 states and 856 transitions. [2025-03-17 11:04:33,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 255 transitions, 1016 flow [2025-03-17 11:04:33,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 255 transitions, 992 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-03-17 11:04:33,782 INFO L231 Difference]: Finished difference. Result has 207 places, 230 transitions, 872 flow [2025-03-17 11:04:33,782 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} [2025-03-17 11:04:33,784 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 47 predicate places. [2025-03-17 11:04:33,784 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 230 transitions, 872 flow [2025-03-17 11:04:33,784 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) [2025-03-17 11:04:33,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:33,785 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] [2025-03-17 11:04:33,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 11:04:33,785 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)] === [2025-03-17 11:04:33,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:33,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1149960540, now seen corresponding path program 1 times [2025-03-17 11:04:33,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:33,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687678897] [2025-03-17 11:04:33,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:33,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:33,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-17 11:04:33,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-17 11:04:33,810 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:33,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:34,079 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:34,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:34,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687678897] [2025-03-17 11:04:34,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687678897] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 11:04:34,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353937621] [2025-03-17 11:04:34,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:34,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:04:34,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:04:34,082 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:04:34,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 11:04:34,132 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-17 11:04:34,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-17 11:04:34,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:34,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:34,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-17 11:04:34,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:04:34,229 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:34,229 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:04:34,408 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:04:34,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353937621] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:04:34,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 11:04:34,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-03-17 11:04:34,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434758832] [2025-03-17 11:04:34,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 11:04:34,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-17 11:04:34,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:34,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-17 11:04:34,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-03-17 11:04:34,438 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-03-17 11:04:34,442 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) [2025-03-17 11:04:34,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:34,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-03-17 11:04:34,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:34,767 INFO L124 PetriNetUnfolderBase]: 120/935 cut-off events. [2025-03-17 11:04:34,767 INFO L125 PetriNetUnfolderBase]: For 414/414 co-relation queries the response was YES. [2025-03-17 11:04:34,771 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 5974 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. [2025-03-17 11:04:34,775 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 21 selfloop transitions, 30 changer transitions 0/247 dead transitions. [2025-03-17 11:04:34,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 247 transitions, 1096 flow [2025-03-17 11:04:34,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-17 11:04:34,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-17 11:04:34,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4374 transitions. [2025-03-17 11:04:34,781 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.91125 [2025-03-17 11:04:34,781 INFO L175 Difference]: Start difference. First operand has 207 places, 230 transitions, 872 flow. Second operand 30 states and 4374 transitions. [2025-03-17 11:04:34,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 247 transitions, 1096 flow [2025-03-17 11:04:34,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 247 transitions, 1072 flow, removed 12 selfloop flow, removed 0 redundant places. [2025-03-17 11:04:34,790 INFO L231 Difference]: Finished difference. Result has 239 places, 240 transitions, 1000 flow [2025-03-17 11:04:34,791 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} [2025-03-17 11:04:34,793 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 79 predicate places. [2025-03-17 11:04:34,793 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 240 transitions, 1000 flow [2025-03-17 11:04:34,794 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) [2025-03-17 11:04:34,794 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:34,795 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] [2025-03-17 11:04:34,801 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 11:04:34,995 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 [2025-03-17 11:04:34,995 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)] === [2025-03-17 11:04:34,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:34,996 INFO L85 PathProgramCache]: Analyzing trace with hash 2056736754, now seen corresponding path program 2 times [2025-03-17 11:04:34,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:34,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014418139] [2025-03-17 11:04:34,996 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:04:34,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:35,007 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 154 statements into 2 equivalence classes. [2025-03-17 11:04:35,012 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 104 of 154 statements. [2025-03-17 11:04:35,012 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:04:35,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:35,227 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:35,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:35,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014418139] [2025-03-17 11:04:35,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014418139] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:35,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:35,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:04:35,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868348742] [2025-03-17 11:04:35,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:35,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:04:35,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:35,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:04:35,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:04:35,645 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 160 [2025-03-17 11:04:35,646 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) [2025-03-17 11:04:35,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:35,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 160 [2025-03-17 11:04:35,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:35,871 INFO L124 PetriNetUnfolderBase]: 300/1427 cut-off events. [2025-03-17 11:04:35,871 INFO L125 PetriNetUnfolderBase]: For 878/918 co-relation queries the response was YES. [2025-03-17 11:04:35,874 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 10116 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. [2025-03-17 11:04:35,878 INFO L140 encePairwiseOnDemand]: 149/160 looper letters, 79 selfloop transitions, 49 changer transitions 0/306 dead transitions. [2025-03-17 11:04:35,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 306 transitions, 1555 flow [2025-03-17 11:04:35,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:04:35,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:04:35,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 880 transitions. [2025-03-17 11:04:35,881 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2025-03-17 11:04:35,881 INFO L175 Difference]: Start difference. First operand has 239 places, 240 transitions, 1000 flow. Second operand 6 states and 880 transitions. [2025-03-17 11:04:35,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 306 transitions, 1555 flow [2025-03-17 11:04:35,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 306 transitions, 1509 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-03-17 11:04:35,891 INFO L231 Difference]: Finished difference. Result has 230 places, 281 transitions, 1370 flow [2025-03-17 11:04:35,891 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} [2025-03-17 11:04:35,893 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 70 predicate places. [2025-03-17 11:04:35,893 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 281 transitions, 1370 flow [2025-03-17 11:04:35,893 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) [2025-03-17 11:04:35,893 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:35,893 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] [2025-03-17 11:04:35,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 11:04:35,893 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)] === [2025-03-17 11:04:35,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:35,894 INFO L85 PathProgramCache]: Analyzing trace with hash -162158218, now seen corresponding path program 1 times [2025-03-17 11:04:35,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:35,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118712233] [2025-03-17 11:04:35,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:35,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:35,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-03-17 11:04:35,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-03-17 11:04:35,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:35,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:36,253 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:36,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:36,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118712233] [2025-03-17 11:04:36,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118712233] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:36,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:36,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:04:36,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358465003] [2025-03-17 11:04:36,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:36,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:04:36,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:36,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:04:36,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:04:36,543 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 160 [2025-03-17 11:04:36,544 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) [2025-03-17 11:04:36,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:36,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 160 [2025-03-17 11:04:36,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:36,926 INFO L124 PetriNetUnfolderBase]: 569/2203 cut-off events. [2025-03-17 11:04:36,927 INFO L125 PetriNetUnfolderBase]: For 2425/2485 co-relation queries the response was YES. [2025-03-17 11:04:36,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5833 conditions, 2203 events. 569/2203 cut-off events. For 2425/2485 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 17212 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. [2025-03-17 11:04:36,941 INFO L140 encePairwiseOnDemand]: 145/160 looper letters, 118 selfloop transitions, 78 changer transitions 11/375 dead transitions. [2025-03-17 11:04:36,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 375 transitions, 2308 flow [2025-03-17 11:04:36,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:04:36,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:04:36,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 866 transitions. [2025-03-17 11:04:36,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9020833333333333 [2025-03-17 11:04:36,944 INFO L175 Difference]: Start difference. First operand has 230 places, 281 transitions, 1370 flow. Second operand 6 states and 866 transitions. [2025-03-17 11:04:36,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 375 transitions, 2308 flow [2025-03-17 11:04:36,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 375 transitions, 2306 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-03-17 11:04:36,958 INFO L231 Difference]: Finished difference. Result has 239 places, 329 transitions, 1974 flow [2025-03-17 11:04:36,959 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} [2025-03-17 11:04:36,960 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 79 predicate places. [2025-03-17 11:04:36,960 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 329 transitions, 1974 flow [2025-03-17 11:04:36,960 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) [2025-03-17 11:04:36,960 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:36,960 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:04:36,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 11:04:36,961 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)] === [2025-03-17 11:04:36,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:36,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1021934499, now seen corresponding path program 1 times [2025-03-17 11:04:36,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:36,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613416355] [2025-03-17 11:04:36,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:36,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:36,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-03-17 11:04:37,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-03-17 11:04:37,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:37,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:40,949 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:40,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:40,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613416355] [2025-03-17 11:04:40,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613416355] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:40,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:40,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-17 11:04:40,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220305754] [2025-03-17 11:04:40,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:40,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 11:04:40,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:40,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 11:04:40,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2025-03-17 11:04:42,212 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2025-03-17 11:04:42,213 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) [2025-03-17 11:04:42,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:42,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2025-03-17 11:04:42,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:43,441 INFO L124 PetriNetUnfolderBase]: 1232/4499 cut-off events. [2025-03-17 11:04:43,441 INFO L125 PetriNetUnfolderBase]: For 9425/9666 co-relation queries the response was YES. [2025-03-17 11:04:43,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14333 conditions, 4499 events. 1232/4499 cut-off events. For 9425/9666 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 42015 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. [2025-03-17 11:04:43,469 INFO L140 encePairwiseOnDemand]: 133/160 looper letters, 364 selfloop transitions, 83 changer transitions 93/697 dead transitions. [2025-03-17 11:04:43,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 697 transitions, 6113 flow [2025-03-17 11:04:43,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-17 11:04:43,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-03-17 11:04:43,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2449 transitions. [2025-03-17 11:04:43,473 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8055921052631579 [2025-03-17 11:04:43,474 INFO L175 Difference]: Start difference. First operand has 239 places, 329 transitions, 1974 flow. Second operand 19 states and 2449 transitions. [2025-03-17 11:04:43,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 697 transitions, 6113 flow [2025-03-17 11:04:43,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 697 transitions, 6027 flow, removed 43 selfloop flow, removed 0 redundant places. [2025-03-17 11:04:43,509 INFO L231 Difference]: Finished difference. Result has 268 places, 402 transitions, 3022 flow [2025-03-17 11:04:43,510 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} [2025-03-17 11:04:43,510 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 108 predicate places. [2025-03-17 11:04:43,510 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 402 transitions, 3022 flow [2025-03-17 11:04:43,511 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) [2025-03-17 11:04:43,511 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:43,511 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] [2025-03-17 11:04:43,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 11:04:43,511 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)] === [2025-03-17 11:04:43,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:43,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1499352263, now seen corresponding path program 2 times [2025-03-17 11:04:43,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:43,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699948408] [2025-03-17 11:04:43,513 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:04:43,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:43,523 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 168 statements into 2 equivalence classes. [2025-03-17 11:04:43,541 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 118 of 168 statements. [2025-03-17 11:04:43,541 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:04:43,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:46,757 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:46,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:46,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699948408] [2025-03-17 11:04:46,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699948408] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:46,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:46,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-17 11:04:46,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470450853] [2025-03-17 11:04:46,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:46,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 11:04:46,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:46,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 11:04:46,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2025-03-17 11:04:48,762 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2025-03-17 11:04:48,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 402 transitions, 3022 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) [2025-03-17 11:04:48,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:48,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2025-03-17 11:04:48,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:50,331 INFO L124 PetriNetUnfolderBase]: 1203/4432 cut-off events. [2025-03-17 11:04:50,331 INFO L125 PetriNetUnfolderBase]: For 13720/14008 co-relation queries the response was YES. [2025-03-17 11:04:50,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16372 conditions, 4432 events. 1203/4432 cut-off events. For 13720/14008 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 41749 event pairs, 182 based on Foata normal form. 166/4543 useless extension candidates. Maximal degree in co-relation 16083. Up to 1196 conditions per place. [2025-03-17 11:04:50,365 INFO L140 encePairwiseOnDemand]: 133/160 looper letters, 309 selfloop transitions, 119 changer transitions 74/659 dead transitions. [2025-03-17 11:04:50,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 659 transitions, 6426 flow [2025-03-17 11:04:50,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-17 11:04:50,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-03-17 11:04:50,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2177 transitions. [2025-03-17 11:04:50,368 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8003676470588236 [2025-03-17 11:04:50,368 INFO L175 Difference]: Start difference. First operand has 268 places, 402 transitions, 3022 flow. Second operand 17 states and 2177 transitions. [2025-03-17 11:04:50,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 659 transitions, 6426 flow [2025-03-17 11:04:50,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 659 transitions, 6409 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-03-17 11:04:50,429 INFO L231 Difference]: Finished difference. Result has 283 places, 435 transitions, 3807 flow [2025-03-17 11:04:50,429 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=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3807, PETRI_PLACES=283, PETRI_TRANSITIONS=435} [2025-03-17 11:04:50,430 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 123 predicate places. [2025-03-17 11:04:50,430 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 435 transitions, 3807 flow [2025-03-17 11:04:50,430 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) [2025-03-17 11:04:50,430 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:50,431 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] [2025-03-17 11:04:50,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 11:04:50,431 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 11:04:50,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:50,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1849998044, now seen corresponding path program 1 times [2025-03-17 11:04:50,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:50,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394943778] [2025-03-17 11:04:50,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:04:50,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:50,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-03-17 11:04:50,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-03-17 11:04:50,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:04:50,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:04:54,228 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:04:54,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:04:54,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394943778] [2025-03-17 11:04:54,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394943778] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:04:54,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:04:54,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-17 11:04:54,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272852863] [2025-03-17 11:04:54,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:04:54,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 11:04:54,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:04:54,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 11:04:54,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2025-03-17 11:04:56,297 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 160 [2025-03-17 11:04:56,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 435 transitions, 3807 flow. Second operand has 14 states, 14 states have (on average 125.5) internal successors, (1757), 14 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:56,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:04:56,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 160 [2025-03-17 11:04:56,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:04:57,782 INFO L124 PetriNetUnfolderBase]: 1464/5713 cut-off events. [2025-03-17 11:04:57,782 INFO L125 PetriNetUnfolderBase]: For 28072/28585 co-relation queries the response was YES. [2025-03-17 11:04:57,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23274 conditions, 5713 events. 1464/5713 cut-off events. For 28072/28585 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 59614 event pairs, 116 based on Foata normal form. 205/5864 useless extension candidates. Maximal degree in co-relation 22978. Up to 1022 conditions per place. [2025-03-17 11:04:57,830 INFO L140 encePairwiseOnDemand]: 138/160 looper letters, 395 selfloop transitions, 116 changer transitions 86/789 dead transitions. [2025-03-17 11:04:57,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 789 transitions, 9096 flow [2025-03-17 11:04:57,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-17 11:04:57,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-03-17 11:04:57,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2868 transitions. [2025-03-17 11:04:57,833 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8147727272727273 [2025-03-17 11:04:57,833 INFO L175 Difference]: Start difference. First operand has 283 places, 435 transitions, 3807 flow. Second operand 22 states and 2868 transitions. [2025-03-17 11:04:57,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 789 transitions, 9096 flow [2025-03-17 11:04:57,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 789 transitions, 8981 flow, removed 28 selfloop flow, removed 10 redundant places. [2025-03-17 11:04:57,962 INFO L231 Difference]: Finished difference. Result has 307 places, 514 transitions, 5043 flow [2025-03-17 11:04:57,963 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=3736, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=5043, PETRI_PLACES=307, PETRI_TRANSITIONS=514} [2025-03-17 11:04:57,964 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 147 predicate places. [2025-03-17 11:04:57,964 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 514 transitions, 5043 flow [2025-03-17 11:04:57,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 125.5) internal successors, (1757), 14 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:04:57,965 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:04:57,965 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] [2025-03-17 11:04:57,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 11:04:57,965 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)] === [2025-03-17 11:04:57,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:04:57,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1356481397, now seen corresponding path program 3 times [2025-03-17 11:04:57,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:04:57,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073727132] [2025-03-17 11:04:57,966 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 11:04:57,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:04:57,977 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 168 statements into 11 equivalence classes. [2025-03-17 11:04:57,999 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 118 of 168 statements. [2025-03-17 11:04:57,999 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 11:04:57,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:01,185 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:05:01,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:01,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073727132] [2025-03-17 11:05:01,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073727132] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:01,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:01,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-17 11:05:01,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144475101] [2025-03-17 11:05:01,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:01,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 11:05:01,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:01,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 11:05:01,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2025-03-17 11:05:03,797 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2025-03-17 11:05:03,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 514 transitions, 5043 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) [2025-03-17 11:05:03,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:03,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2025-03-17 11:05:03,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:05,665 INFO L124 PetriNetUnfolderBase]: 1778/6420 cut-off events. [2025-03-17 11:05:05,665 INFO L125 PetriNetUnfolderBase]: For 37379/37766 co-relation queries the response was YES. [2025-03-17 11:05:05,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28698 conditions, 6420 events. 1778/6420 cut-off events. For 37379/37766 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 66237 event pairs, 255 based on Foata normal form. 310/6663 useless extension candidates. Maximal degree in co-relation 28391. Up to 1442 conditions per place. [2025-03-17 11:05:05,717 INFO L140 encePairwiseOnDemand]: 135/160 looper letters, 304 selfloop transitions, 208 changer transitions 55/730 dead transitions. [2025-03-17 11:05:05,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 730 transitions, 8732 flow [2025-03-17 11:05:05,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-17 11:05:05,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-03-17 11:05:05,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2048 transitions. [2025-03-17 11:05:05,727 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8 [2025-03-17 11:05:05,727 INFO L175 Difference]: Start difference. First operand has 307 places, 514 transitions, 5043 flow. Second operand 16 states and 2048 transitions. [2025-03-17 11:05:05,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 730 transitions, 8732 flow [2025-03-17 11:05:05,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 730 transitions, 8640 flow, removed 37 selfloop flow, removed 7 redundant places. [2025-03-17 11:05:05,886 INFO L231 Difference]: Finished difference. Result has 320 places, 539 transitions, 6003 flow [2025-03-17 11:05:05,887 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=4999, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=183, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6003, PETRI_PLACES=320, PETRI_TRANSITIONS=539} [2025-03-17 11:05:05,887 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 160 predicate places. [2025-03-17 11:05:05,888 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 539 transitions, 6003 flow [2025-03-17 11:05:05,888 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) [2025-03-17 11:05:05,889 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:05,889 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] [2025-03-17 11:05:05,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 11:05:05,889 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)] === [2025-03-17 11:05:05,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:05,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1231867683, now seen corresponding path program 4 times [2025-03-17 11:05:05,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:05,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003578789] [2025-03-17 11:05:05,890 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 11:05:05,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:05,903 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 168 statements into 2 equivalence classes. [2025-03-17 11:05:05,927 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 168 of 168 statements. [2025-03-17 11:05:05,930 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 11:05:05,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:06,502 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-03-17 11:05:06,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:06,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003578789] [2025-03-17 11:05:06,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003578789] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:06,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:06,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-17 11:05:06,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297468738] [2025-03-17 11:05:06,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:06,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 11:05:06,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:06,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 11:05:06,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2025-03-17 11:05:08,534 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2025-03-17 11:05:08,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 539 transitions, 6003 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) [2025-03-17 11:05:08,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:08,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2025-03-17 11:05:08,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:10,492 INFO L124 PetriNetUnfolderBase]: 2579/8835 cut-off events. [2025-03-17 11:05:10,492 INFO L125 PetriNetUnfolderBase]: For 71233/71717 co-relation queries the response was YES. [2025-03-17 11:05:10,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43884 conditions, 8835 events. 2579/8835 cut-off events. For 71233/71717 co-relation queries the response was YES. Maximal size of possible extension queue 555. Compared 94167 event pairs, 288 based on Foata normal form. 265/9014 useless extension candidates. Maximal degree in co-relation 43572. Up to 1994 conditions per place. [2025-03-17 11:05:10,562 INFO L140 encePairwiseOnDemand]: 136/160 looper letters, 583 selfloop transitions, 177 changer transitions 84/1007 dead transitions. [2025-03-17 11:05:10,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 1007 transitions, 13984 flow [2025-03-17 11:05:10,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-17 11:05:10,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-03-17 11:05:10,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2604 transitions. [2025-03-17 11:05:10,565 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.81375 [2025-03-17 11:05:10,565 INFO L175 Difference]: Start difference. First operand has 320 places, 539 transitions, 6003 flow. Second operand 20 states and 2604 transitions. [2025-03-17 11:05:10,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 1007 transitions, 13984 flow [2025-03-17 11:05:10,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 1007 transitions, 13735 flow, removed 62 selfloop flow, removed 10 redundant places. [2025-03-17 11:05:10,876 INFO L231 Difference]: Finished difference. Result has 344 places, 636 transitions, 8418 flow [2025-03-17 11:05:10,877 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=5872, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8418, PETRI_PLACES=344, PETRI_TRANSITIONS=636} [2025-03-17 11:05:10,877 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 184 predicate places. [2025-03-17 11:05:10,877 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 636 transitions, 8418 flow [2025-03-17 11:05:10,878 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) [2025-03-17 11:05:10,878 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:10,878 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] [2025-03-17 11:05:10,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 11:05:10,878 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)] === [2025-03-17 11:05:10,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:10,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1752553379, now seen corresponding path program 5 times [2025-03-17 11:05:10,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:10,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750317901] [2025-03-17 11:05:10,879 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 11:05:10,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:10,892 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 168 statements into 11 equivalence classes. [2025-03-17 11:05:10,908 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 168 of 168 statements. [2025-03-17 11:05:10,908 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-03-17 11:05:10,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:11,499 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-03-17 11:05:11,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:11,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750317901] [2025-03-17 11:05:11,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750317901] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:11,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:11,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 11:05:11,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300445180] [2025-03-17 11:05:11,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:11,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 11:05:11,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:11,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 11:05:11,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2025-03-17 11:05:12,518 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 160 [2025-03-17 11:05:12,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 636 transitions, 8418 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) [2025-03-17 11:05:12,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:12,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 160 [2025-03-17 11:05:12,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:14,347 INFO L124 PetriNetUnfolderBase]: 2479/8867 cut-off events. [2025-03-17 11:05:14,347 INFO L125 PetriNetUnfolderBase]: For 88122/88572 co-relation queries the response was YES. [2025-03-17 11:05:14,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46914 conditions, 8867 events. 2479/8867 cut-off events. For 88122/88572 co-relation queries the response was YES. Maximal size of possible extension queue 588. Compared 98160 event pairs, 412 based on Foata normal form. 361/9128 useless extension candidates. Maximal degree in co-relation 46762. Up to 1909 conditions per place. [2025-03-17 11:05:14,439 INFO L140 encePairwiseOnDemand]: 141/160 looper letters, 322 selfloop transitions, 286 changer transitions 39/821 dead transitions. [2025-03-17 11:05:14,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 821 transitions, 12120 flow [2025-03-17 11:05:14,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 11:05:14,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-17 11:05:14,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1639 transitions. [2025-03-17 11:05:14,441 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8536458333333333 [2025-03-17 11:05:14,441 INFO L175 Difference]: Start difference. First operand has 344 places, 636 transitions, 8418 flow. Second operand 12 states and 1639 transitions. [2025-03-17 11:05:14,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 821 transitions, 12120 flow [2025-03-17 11:05:14,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 821 transitions, 12054 flow, removed 18 selfloop flow, removed 5 redundant places. [2025-03-17 11:05:14,877 INFO L231 Difference]: Finished difference. Result has 351 places, 656 transitions, 9435 flow [2025-03-17 11:05:14,878 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=8367, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=636, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=263, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9435, PETRI_PLACES=351, PETRI_TRANSITIONS=656} [2025-03-17 11:05:14,878 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 191 predicate places. [2025-03-17 11:05:14,878 INFO L471 AbstractCegarLoop]: Abstraction has has 351 places, 656 transitions, 9435 flow [2025-03-17 11:05:14,879 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) [2025-03-17 11:05:14,879 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:14,879 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:05:14,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 11:05:14,879 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 11:05:14,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:14,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1540095389, now seen corresponding path program 6 times [2025-03-17 11:05:14,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:14,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816663378] [2025-03-17 11:05:14,880 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 11:05:14,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:14,888 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 168 statements into 11 equivalence classes. [2025-03-17 11:05:14,893 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 116 of 168 statements. [2025-03-17 11:05:14,893 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-17 11:05:14,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:15,248 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-03-17 11:05:15,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:15,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816663378] [2025-03-17 11:05:15,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816663378] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:15,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:15,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:05:15,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120147721] [2025-03-17 11:05:15,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:15,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:05:15,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:15,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:05:15,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-03-17 11:05:16,094 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 160 [2025-03-17 11:05:16,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 656 transitions, 9435 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) [2025-03-17 11:05:16,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:16,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 160 [2025-03-17 11:05:16,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:18,163 INFO L124 PetriNetUnfolderBase]: 2903/10146 cut-off events. [2025-03-17 11:05:18,163 INFO L125 PetriNetUnfolderBase]: For 128161/128700 co-relation queries the response was YES. [2025-03-17 11:05:18,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58499 conditions, 10146 events. 2903/10146 cut-off events. For 128161/128700 co-relation queries the response was YES. Maximal size of possible extension queue 652. Compared 114367 event pairs, 398 based on Foata normal form. 305/10320 useless extension candidates. Maximal degree in co-relation 58171. Up to 2182 conditions per place. [2025-03-17 11:05:18,267 INFO L140 encePairwiseOnDemand]: 142/160 looper letters, 553 selfloop transitions, 253 changer transitions 52/1032 dead transitions. [2025-03-17 11:05:18,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 1032 transitions, 17415 flow [2025-03-17 11:05:18,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 11:05:18,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-17 11:05:18,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2034 transitions. [2025-03-17 11:05:18,269 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8475 [2025-03-17 11:05:18,269 INFO L175 Difference]: Start difference. First operand has 351 places, 656 transitions, 9435 flow. Second operand 15 states and 2034 transitions. [2025-03-17 11:05:18,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 1032 transitions, 17415 flow [2025-03-17 11:05:19,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 1032 transitions, 16742 flow, removed 23 selfloop flow, removed 6 redundant places. [2025-03-17 11:05:19,015 INFO L231 Difference]: Finished difference. Result has 368 places, 770 transitions, 12452 flow [2025-03-17 11:05:19,016 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=9007, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=656, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12452, PETRI_PLACES=368, PETRI_TRANSITIONS=770} [2025-03-17 11:05:19,016 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 208 predicate places. [2025-03-17 11:05:19,016 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 770 transitions, 12452 flow [2025-03-17 11:05:19,017 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) [2025-03-17 11:05:19,017 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:19,017 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] [2025-03-17 11:05:19,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-17 11:05:19,017 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)] === [2025-03-17 11:05:19,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:19,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1344438187, now seen corresponding path program 7 times [2025-03-17 11:05:19,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:19,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848320466] [2025-03-17 11:05:19,018 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 11:05:19,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:19,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-03-17 11:05:19,053 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-03-17 11:05:19,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:05:19,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:23,723 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-17 11:05:23,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:23,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848320466] [2025-03-17 11:05:23,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848320466] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 11:05:23,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558292427] [2025-03-17 11:05:23,724 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 11:05:23,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:05:23,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:05:23,726 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:05:23,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 11:05:23,784 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-03-17 11:05:23,826 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-03-17 11:05:23,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:05:23,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:23,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 59 conjuncts are in the unsatisfiable core [2025-03-17 11:05:23,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:05:24,087 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 [2025-03-17 11:05:24,128 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 [2025-03-17 11:05:24,162 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 [2025-03-17 11:05:24,257 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-03-17 11:05:24,257 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 [2025-03-17 11:05:24,271 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 11:05:24,272 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 [2025-03-17 11:05:24,288 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 11:05:24,288 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 [2025-03-17 11:05:24,328 INFO L349 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2025-03-17 11:05:24,328 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 [2025-03-17 11:05:24,408 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-17 11:05:24,408 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:05:24,712 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 [2025-03-17 11:05:24,827 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-03-17 11:05:24,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558292427] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 11:05:24,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:05:24,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13, 23] total 40 [2025-03-17 11:05:24,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61011999] [2025-03-17 11:05:24,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:24,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 11:05:24,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:24,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 11:05:24,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1478, Unknown=0, NotChecked=0, Total=1640 [2025-03-17 11:05:25,932 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 160 [2025-03-17 11:05:25,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 770 transitions, 12452 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) [2025-03-17 11:05:25,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:25,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 160 [2025-03-17 11:05:25,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:29,415 INFO L124 PetriNetUnfolderBase]: 4158/13170 cut-off events. [2025-03-17 11:05:29,415 INFO L125 PetriNetUnfolderBase]: For 197151/198045 co-relation queries the response was YES. [2025-03-17 11:05:29,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82219 conditions, 13170 events. 4158/13170 cut-off events. For 197151/198045 co-relation queries the response was YES. Maximal size of possible extension queue 883. Compared 149201 event pairs, 401 based on Foata normal form. 463/13510 useless extension candidates. Maximal degree in co-relation 81882. Up to 2509 conditions per place. [2025-03-17 11:05:29,561 INFO L140 encePairwiseOnDemand]: 135/160 looper letters, 537 selfloop transitions, 507 changer transitions 111/1313 dead transitions. [2025-03-17 11:05:29,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 1313 transitions, 23611 flow [2025-03-17 11:05:29,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 11:05:29,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-17 11:05:29,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2035 transitions. [2025-03-17 11:05:29,563 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8479166666666667 [2025-03-17 11:05:29,563 INFO L175 Difference]: Start difference. First operand has 368 places, 770 transitions, 12452 flow. Second operand 15 states and 2035 transitions. [2025-03-17 11:05:29,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 1313 transitions, 23611 flow [2025-03-17 11:05:30,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 1313 transitions, 23340 flow, removed 109 selfloop flow, removed 5 redundant places. [2025-03-17 11:05:30,806 INFO L231 Difference]: Finished difference. Result has 384 places, 934 transitions, 17398 flow [2025-03-17 11:05:30,806 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=12244, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=770, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=339, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=17398, PETRI_PLACES=384, PETRI_TRANSITIONS=934} [2025-03-17 11:05:30,807 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 224 predicate places. [2025-03-17 11:05:30,807 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 934 transitions, 17398 flow [2025-03-17 11:05:30,807 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) [2025-03-17 11:05:30,807 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:30,807 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] [2025-03-17 11:05:30,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 11:05:31,008 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,SelfDestructingSolverStorable15 [2025-03-17 11:05:31,008 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)] === [2025-03-17 11:05:31,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:31,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1440121757, now seen corresponding path program 8 times [2025-03-17 11:05:31,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:31,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358232036] [2025-03-17 11:05:31,009 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:05:31,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:31,018 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 168 statements into 2 equivalence classes. [2025-03-17 11:05:31,028 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 116 of 168 statements. [2025-03-17 11:05:31,028 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:05:31,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:36,830 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-03-17 11:05:36,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:36,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358232036] [2025-03-17 11:05:36,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358232036] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:36,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:36,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-17 11:05:36,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074596086] [2025-03-17 11:05:36,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:36,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 11:05:36,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:36,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 11:05:36,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2025-03-17 11:05:39,856 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2025-03-17 11:05:39,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 934 transitions, 17398 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) [2025-03-17 11:05:39,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:39,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2025-03-17 11:05:39,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:45,616 INFO L124 PetriNetUnfolderBase]: 3817/12773 cut-off events. [2025-03-17 11:05:45,617 INFO L125 PetriNetUnfolderBase]: For 221169/221981 co-relation queries the response was YES. [2025-03-17 11:05:45,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83620 conditions, 12773 events. 3817/12773 cut-off events. For 221169/221981 co-relation queries the response was YES. Maximal size of possible extension queue 853. Compared 146356 event pairs, 488 based on Foata normal form. 397/13034 useless extension candidates. Maximal degree in co-relation 83277. Up to 2925 conditions per place. [2025-03-17 11:05:45,745 INFO L140 encePairwiseOnDemand]: 137/160 looper letters, 725 selfloop transitions, 401 changer transitions 52/1344 dead transitions. [2025-03-17 11:05:45,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 1344 transitions, 26146 flow [2025-03-17 11:05:45,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-17 11:05:45,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-03-17 11:05:45,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2847 transitions. [2025-03-17 11:05:45,748 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8088068181818182 [2025-03-17 11:05:45,748 INFO L175 Difference]: Start difference. First operand has 384 places, 934 transitions, 17398 flow. Second operand 22 states and 2847 transitions. [2025-03-17 11:05:45,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 1344 transitions, 26146 flow [2025-03-17 11:05:47,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 1344 transitions, 25438 flow, removed 104 selfloop flow, removed 2 redundant places. [2025-03-17 11:05:47,030 INFO L231 Difference]: Finished difference. Result has 412 places, 978 transitions, 19042 flow [2025-03-17 11:05:47,030 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=16803, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=357, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=19042, PETRI_PLACES=412, PETRI_TRANSITIONS=978} [2025-03-17 11:05:47,030 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 252 predicate places. [2025-03-17 11:05:47,030 INFO L471 AbstractCegarLoop]: Abstraction has has 412 places, 978 transitions, 19042 flow [2025-03-17 11:05:47,031 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) [2025-03-17 11:05:47,031 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:05:47,031 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] [2025-03-17 11:05:47,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-17 11:05:47,031 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)] === [2025-03-17 11:05:47,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:05:47,032 INFO L85 PathProgramCache]: Analyzing trace with hash 779078243, now seen corresponding path program 9 times [2025-03-17 11:05:47,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:05:47,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491362423] [2025-03-17 11:05:47,032 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 11:05:47,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:05:47,040 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 168 statements into 11 equivalence classes. [2025-03-17 11:05:47,044 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 116 of 168 statements. [2025-03-17 11:05:47,044 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 11:05:47,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:05:47,453 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-03-17 11:05:47,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:05:47,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491362423] [2025-03-17 11:05:47,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491362423] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:05:47,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:05:47,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 11:05:47,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288677401] [2025-03-17 11:05:47,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:05:47,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:05:47,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:05:47,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:05:47,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-03-17 11:05:48,242 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 160 [2025-03-17 11:05:48,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 978 transitions, 19042 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) [2025-03-17 11:05:48,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:05:48,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 160 [2025-03-17 11:05:48,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:05:51,890 INFO L124 PetriNetUnfolderBase]: 3761/12997 cut-off events. [2025-03-17 11:05:51,891 INFO L125 PetriNetUnfolderBase]: For 260449/261324 co-relation queries the response was YES. [2025-03-17 11:05:51,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88548 conditions, 12997 events. 3761/12997 cut-off events. For 260449/261324 co-relation queries the response was YES. Maximal size of possible extension queue 885. Compared 152945 event pairs, 685 based on Foata normal form. 377/13207 useless extension candidates. Maximal degree in co-relation 88195. Up to 2770 conditions per place. [2025-03-17 11:05:52,035 INFO L140 encePairwiseOnDemand]: 141/160 looper letters, 554 selfloop transitions, 410 changer transitions 54/1195 dead transitions. [2025-03-17 11:05:52,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 1195 transitions, 25080 flow [2025-03-17 11:05:52,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 11:05:52,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-17 11:05:52,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1885 transitions. [2025-03-17 11:05:52,037 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8415178571428571 [2025-03-17 11:05:52,037 INFO L175 Difference]: Start difference. First operand has 412 places, 978 transitions, 19042 flow. Second operand 14 states and 1885 transitions. [2025-03-17 11:05:52,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 1195 transitions, 25080 flow