./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-lit/sssc12_variant.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/pthread-lit/sssc12_variant.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 0ff08c0361e0fdb1af5d85b333c023f31932563eeba591605f3b3b9ddd16afc8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 10:59:01,898 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 10:59:01,947 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-17 10:59:01,951 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 10:59:01,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 10:59:01,974 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 10:59:01,974 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 10:59:01,974 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 10:59:01,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 10:59:01,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 10:59:01,975 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 10:59:01,975 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 10:59:01,975 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 10:59:01,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 10:59:01,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 10:59:01,975 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 10:59:01,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 10:59:01,975 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 10:59:01,977 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 10:59:01,977 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 10:59:01,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 10:59:01,977 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 10:59:01,977 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-17 10:59:01,977 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 10:59:01,977 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 10:59:01,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 10:59:01,977 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 10:59:01,977 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 10:59:01,977 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 10:59:01,977 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 10:59:01,978 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 10:59:01,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 10:59:01,978 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 10:59:01,978 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 10:59:01,978 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 10:59:01,978 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 10:59:01,978 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 10:59:01,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 10:59:01,978 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 10:59:01,978 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 10:59:01,978 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 10:59:01,978 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 10:59:01,978 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 -> 0ff08c0361e0fdb1af5d85b333c023f31932563eeba591605f3b3b9ddd16afc8 [2025-03-17 10:59:02,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 10:59:02,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 10:59:02,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 10:59:02,209 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 10:59:02,210 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 10:59:02,211 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-lit/sssc12_variant.i [2025-03-17 10:59:03,448 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/196e95ae3/7ee2512c8f9b46479be522d61814d3cc/FLAG005ff9b24 [2025-03-17 10:59:03,729 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 10:59:03,729 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-lit/sssc12_variant.i [2025-03-17 10:59:03,746 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/196e95ae3/7ee2512c8f9b46479be522d61814d3cc/FLAG005ff9b24 [2025-03-17 10:59:03,761 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/196e95ae3/7ee2512c8f9b46479be522d61814d3cc [2025-03-17 10:59:03,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 10:59:03,764 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 10:59:03,765 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 10:59:03,765 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 10:59:03,770 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 10:59:03,771 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 10:59:03" (1/1) ... [2025-03-17 10:59:03,773 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf32be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:59:03, skipping insertion in model container [2025-03-17 10:59:03,773 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 10:59:03" (1/1) ... [2025-03-17 10:59:03,805 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 10:59:04,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 10:59:04,171 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 10:59:04,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 10:59:04,241 INFO L204 MainTranslator]: Completed translation [2025-03-17 10:59:04,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:59:04 WrapperNode [2025-03-17 10:59:04,242 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 10:59:04,243 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 10:59:04,243 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 10:59:04,243 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 10:59:04,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:59:04" (1/1) ... [2025-03-17 10:59:04,257 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:59:04" (1/1) ... [2025-03-17 10:59:04,284 INFO L138 Inliner]: procedures = 272, calls = 22, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 132 [2025-03-17 10:59:04,285 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 10:59:04,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 10:59:04,285 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 10:59:04,286 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 10:59:04,291 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:59:04" (1/1) ... [2025-03-17 10:59:04,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:59:04" (1/1) ... [2025-03-17 10:59:04,299 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:59:04" (1/1) ... [2025-03-17 10:59:04,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:59:04" (1/1) ... [2025-03-17 10:59:04,304 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:59:04" (1/1) ... [2025-03-17 10:59:04,305 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:59:04" (1/1) ... [2025-03-17 10:59:04,310 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:59:04" (1/1) ... [2025-03-17 10:59:04,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:59:04" (1/1) ... [2025-03-17 10:59:04,312 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 10:59:04,316 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 10:59:04,317 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 10:59:04,317 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 10:59:04,317 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:59:04" (1/1) ... [2025-03-17 10:59:04,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 10:59:04,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 10:59:04,350 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 10:59:04,354 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 10:59:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2025-03-17 10:59:04,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2025-03-17 10:59:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-17 10:59:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-17 10:59:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-17 10:59:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-17 10:59:04,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 10:59:04,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 10:59:04,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 10:59:04,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 10:59:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 10:59:04,373 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 10:59:04,463 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 10:59:04,464 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 10:59:04,704 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 10:59:04,704 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 10:59:04,729 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 10:59:04,730 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 10:59:04,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 10:59:04 BoogieIcfgContainer [2025-03-17 10:59:04,730 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 10:59:04,732 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 10:59:04,732 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 10:59:04,735 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 10:59:04,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 10:59:03" (1/3) ... [2025-03-17 10:59:04,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c059013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 10:59:04, skipping insertion in model container [2025-03-17 10:59:04,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:59:04" (2/3) ... [2025-03-17 10:59:04,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c059013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 10:59:04, skipping insertion in model container [2025-03-17 10:59:04,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 10:59:04" (3/3) ... [2025-03-17 10:59:04,738 INFO L128 eAbstractionObserver]: Analyzing ICFG sssc12_variant.i [2025-03-17 10:59:04,749 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 10:59:04,751 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sssc12_variant.i that has 2 procedures, 157 locations, 1 initial locations, 2 loop locations, and 17 error locations. [2025-03-17 10:59:04,752 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 10:59:04,831 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:59:04,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 163 transitions, 330 flow [2025-03-17 10:59:04,931 INFO L124 PetriNetUnfolderBase]: 6/172 cut-off events. [2025-03-17 10:59:04,934 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:59:04,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 172 events. 6/172 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 149 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2025-03-17 10:59:04,939 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 163 transitions, 330 flow [2025-03-17 10:59:04,943 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 163 transitions, 330 flow [2025-03-17 10:59:04,951 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:59:04,959 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;@792c8cce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:59:04,959 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2025-03-17 10:59:04,965 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:59:04,966 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-03-17 10:59:04,966 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:59:04,966 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:04,967 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] [2025-03-17 10:59:04,967 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2025-03-17 10:59:04,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:04,973 INFO L85 PathProgramCache]: Analyzing trace with hash -290825143, now seen corresponding path program 1 times [2025-03-17 10:59:04,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:04,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704610052] [2025-03-17 10:59:04,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:04,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:05,047 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-17 10:59:05,060 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-17 10:59:05,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:05,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:05,144 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 10:59:05,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:05,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704610052] [2025-03-17 10:59:05,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704610052] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:05,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:05,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:05,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847153449] [2025-03-17 10:59:05,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:05,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:05,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:05,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:05,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:05,214 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 163 [2025-03-17 10:59:05,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 163 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 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 10:59:05,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:05,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 163 [2025-03-17 10:59:05,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:05,294 INFO L124 PetriNetUnfolderBase]: 3/154 cut-off events. [2025-03-17 10:59:05,294 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 10:59:05,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 154 events. 3/154 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs, 0 based on Foata normal form. 11/144 useless extension candidates. Maximal degree in co-relation 91. Up to 11 conditions per place. [2025-03-17 10:59:05,298 INFO L140 encePairwiseOnDemand]: 156/163 looper letters, 10 selfloop transitions, 2 changer transitions 1/151 dead transitions. [2025-03-17 10:59:05,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 151 transitions, 330 flow [2025-03-17 10:59:05,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:59:05,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:59:05,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 449 transitions. [2025-03-17 10:59:05,308 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.918200408997955 [2025-03-17 10:59:05,310 INFO L175 Difference]: Start difference. First operand has 160 places, 163 transitions, 330 flow. Second operand 3 states and 449 transitions. [2025-03-17 10:59:05,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 151 transitions, 330 flow [2025-03-17 10:59:05,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 151 transitions, 330 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 10:59:05,321 INFO L231 Difference]: Finished difference. Result has 153 places, 150 transitions, 308 flow [2025-03-17 10:59:05,324 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=153, PETRI_TRANSITIONS=150} [2025-03-17 10:59:05,327 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, -7 predicate places. [2025-03-17 10:59:05,327 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 150 transitions, 308 flow [2025-03-17 10:59:05,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 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 10:59:05,327 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:05,327 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] [2025-03-17 10:59:05,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 10:59:05,328 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2025-03-17 10:59:05,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:05,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1961922765, now seen corresponding path program 1 times [2025-03-17 10:59:05,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:05,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229692835] [2025-03-17 10:59:05,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:05,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:05,348 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 10:59:05,359 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 10:59:05,359 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:05,359 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:05,414 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 10:59:05,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:05,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229692835] [2025-03-17 10:59:05,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229692835] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:05,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:05,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:05,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386743495] [2025-03-17 10:59:05,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:05,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:05,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:05,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:05,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:05,461 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 163 [2025-03-17 10:59:05,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 150 transitions, 308 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 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 10:59:05,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:05,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 163 [2025-03-17 10:59:05,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:05,503 INFO L124 PetriNetUnfolderBase]: 3/152 cut-off events. [2025-03-17 10:59:05,503 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 10:59:05,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 152 events. 3/152 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 139. Up to 11 conditions per place. [2025-03-17 10:59:05,504 INFO L140 encePairwiseOnDemand]: 160/163 looper letters, 10 selfloop transitions, 2 changer transitions 0/149 dead transitions. [2025-03-17 10:59:05,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 149 transitions, 330 flow [2025-03-17 10:59:05,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:59:05,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:59:05,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2025-03-17 10:59:05,507 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9100204498977505 [2025-03-17 10:59:05,507 INFO L175 Difference]: Start difference. First operand has 153 places, 150 transitions, 308 flow. Second operand 3 states and 445 transitions. [2025-03-17 10:59:05,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 149 transitions, 330 flow [2025-03-17 10:59:05,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 149 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:59:05,510 INFO L231 Difference]: Finished difference. Result has 151 places, 149 transitions, 306 flow [2025-03-17 10:59:05,511 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=151, PETRI_TRANSITIONS=149} [2025-03-17 10:59:05,512 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, -9 predicate places. [2025-03-17 10:59:05,512 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 149 transitions, 306 flow [2025-03-17 10:59:05,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 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 10:59:05,512 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:05,512 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] [2025-03-17 10:59:05,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 10:59:05,513 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2025-03-17 10:59:05,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:05,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1976389126, now seen corresponding path program 1 times [2025-03-17 10:59:05,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:05,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676995497] [2025-03-17 10:59:05,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:05,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:05,525 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-17 10:59:05,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-17 10:59:05,534 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:05,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:05,578 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 10:59:05,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:05,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676995497] [2025-03-17 10:59:05,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676995497] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:05,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:05,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:05,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454411806] [2025-03-17 10:59:05,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:05,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:05,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:05,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:05,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:05,606 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 163 [2025-03-17 10:59:05,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 149 transitions, 306 flow. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 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 10:59:05,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:05,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 163 [2025-03-17 10:59:05,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:05,628 INFO L124 PetriNetUnfolderBase]: 3/148 cut-off events. [2025-03-17 10:59:05,628 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-17 10:59:05,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 148 events. 3/148 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 127. Up to 11 conditions per place. [2025-03-17 10:59:05,629 INFO L140 encePairwiseOnDemand]: 158/163 looper letters, 11 selfloop transitions, 1 changer transitions 0/145 dead transitions. [2025-03-17 10:59:05,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 145 transitions, 322 flow [2025-03-17 10:59:05,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:59:05,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:59:05,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 442 transitions. [2025-03-17 10:59:05,631 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9038854805725971 [2025-03-17 10:59:05,631 INFO L175 Difference]: Start difference. First operand has 151 places, 149 transitions, 306 flow. Second operand 3 states and 442 transitions. [2025-03-17 10:59:05,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 145 transitions, 322 flow [2025-03-17 10:59:05,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 145 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:59:05,633 INFO L231 Difference]: Finished difference. Result has 147 places, 145 transitions, 296 flow [2025-03-17 10:59:05,634 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=147, PETRI_TRANSITIONS=145} [2025-03-17 10:59:05,634 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, -13 predicate places. [2025-03-17 10:59:05,634 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 145 transitions, 296 flow [2025-03-17 10:59:05,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 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 10:59:05,635 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:05,635 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] [2025-03-17 10:59:05,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 10:59:05,635 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2025-03-17 10:59:05,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:05,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1666692704, now seen corresponding path program 1 times [2025-03-17 10:59:05,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:05,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234171236] [2025-03-17 10:59:05,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:05,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:05,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-17 10:59:05,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-17 10:59:05,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:05,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:05,701 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 10:59:05,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:05,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234171236] [2025-03-17 10:59:05,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234171236] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:05,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:05,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:05,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211013736] [2025-03-17 10:59:05,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:05,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:05,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:05,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:05,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:05,741 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 163 [2025-03-17 10:59:05,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 145 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 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 10:59:05,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:05,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 163 [2025-03-17 10:59:05,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:05,764 INFO L124 PetriNetUnfolderBase]: 3/147 cut-off events. [2025-03-17 10:59:05,765 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 10:59:05,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 147 events. 3/147 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 124. Up to 10 conditions per place. [2025-03-17 10:59:05,765 INFO L140 encePairwiseOnDemand]: 160/163 looper letters, 9 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2025-03-17 10:59:05,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 144 transitions, 316 flow [2025-03-17 10:59:05,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:59:05,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:59:05,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 447 transitions. [2025-03-17 10:59:05,767 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9141104294478528 [2025-03-17 10:59:05,767 INFO L175 Difference]: Start difference. First operand has 147 places, 145 transitions, 296 flow. Second operand 3 states and 447 transitions. [2025-03-17 10:59:05,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 144 transitions, 316 flow [2025-03-17 10:59:05,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 144 transitions, 315 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 10:59:05,770 INFO L231 Difference]: Finished difference. Result has 147 places, 144 transitions, 297 flow [2025-03-17 10:59:05,770 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=297, PETRI_PLACES=147, PETRI_TRANSITIONS=144} [2025-03-17 10:59:05,771 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, -13 predicate places. [2025-03-17 10:59:05,771 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 144 transitions, 297 flow [2025-03-17 10:59:05,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 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 10:59:05,771 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:05,771 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:05,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 10:59:05,772 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2025-03-17 10:59:05,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:05,772 INFO L85 PathProgramCache]: Analyzing trace with hash -2130833952, now seen corresponding path program 1 times [2025-03-17 10:59:05,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:05,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743154631] [2025-03-17 10:59:05,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:05,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:05,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-17 10:59:05,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-17 10:59:05,794 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:05,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:05,932 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 10:59:05,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:05,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743154631] [2025-03-17 10:59:05,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743154631] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:05,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:05,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:59:05,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379614838] [2025-03-17 10:59:05,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:05,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 10:59:05,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:05,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 10:59:05,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 10:59:05,954 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 163 [2025-03-17 10:59:05,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 144 transitions, 297 flow. Second operand has 5 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 0 states have call successors, (0), 0 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 10:59:05,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:05,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 163 [2025-03-17 10:59:05,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:06,023 INFO L124 PetriNetUnfolderBase]: 2/150 cut-off events. [2025-03-17 10:59:06,023 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 10:59:06,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 150 events. 2/150 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 0 based on Foata normal form. 1/137 useless extension candidates. Maximal degree in co-relation 136. Up to 15 conditions per place. [2025-03-17 10:59:06,024 INFO L140 encePairwiseOnDemand]: 159/163 looper letters, 14 selfloop transitions, 0 changer transitions 4/147 dead transitions. [2025-03-17 10:59:06,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 147 transitions, 339 flow [2025-03-17 10:59:06,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 10:59:06,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 10:59:06,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 724 transitions. [2025-03-17 10:59:06,026 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8883435582822086 [2025-03-17 10:59:06,026 INFO L175 Difference]: Start difference. First operand has 147 places, 144 transitions, 297 flow. Second operand 5 states and 724 transitions. [2025-03-17 10:59:06,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 147 transitions, 339 flow [2025-03-17 10:59:06,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 147 transitions, 335 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:59:06,029 INFO L231 Difference]: Finished difference. Result has 152 places, 143 transitions, 297 flow [2025-03-17 10:59:06,031 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=297, PETRI_PLACES=152, PETRI_TRANSITIONS=143} [2025-03-17 10:59:06,031 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, -8 predicate places. [2025-03-17 10:59:06,031 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 143 transitions, 297 flow [2025-03-17 10:59:06,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 0 states have call successors, (0), 0 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 10:59:06,032 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:06,032 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:06,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 10:59:06,032 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2025-03-17 10:59:06,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:06,033 INFO L85 PathProgramCache]: Analyzing trace with hash -317563461, now seen corresponding path program 1 times [2025-03-17 10:59:06,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:06,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682166804] [2025-03-17 10:59:06,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:06,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:06,045 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-17 10:59:06,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 10:59:06,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:06,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:59:06,063 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 10:59:06,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-17 10:59:06,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 10:59:06,077 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:06,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:59:06,100 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 10:59:06,100 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 10:59:06,101 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2025-03-17 10:59:06,102 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2025-03-17 10:59:06,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2025-03-17 10:59:06,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2025-03-17 10:59:06,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2025-03-17 10:59:06,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2025-03-17 10:59:06,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2025-03-17 10:59:06,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2025-03-17 10:59:06,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (10 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2025-03-17 10:59:06,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2025-03-17 10:59:06,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 10:59:06,105 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-17 10:59:06,107 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 10:59:06,107 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-17 10:59:06,164 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:59:06,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 248 transitions, 506 flow [2025-03-17 10:59:06,203 INFO L124 PetriNetUnfolderBase]: 10/268 cut-off events. [2025-03-17 10:59:06,204 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-17 10:59:06,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 268 events. 10/268 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 535 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 179. Up to 3 conditions per place. [2025-03-17 10:59:06,207 INFO L82 GeneralOperation]: Start removeDead. Operand has 243 places, 248 transitions, 506 flow [2025-03-17 10:59:06,210 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 243 places, 248 transitions, 506 flow [2025-03-17 10:59:06,211 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:59:06,213 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;@792c8cce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:59:06,213 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2025-03-17 10:59:06,215 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:59:06,216 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-03-17 10:59:06,216 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:59:06,216 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:06,216 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] [2025-03-17 10:59:06,216 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-03-17 10:59:06,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:06,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1179719359, now seen corresponding path program 1 times [2025-03-17 10:59:06,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:06,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104589538] [2025-03-17 10:59:06,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:06,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:06,224 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-17 10:59:06,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-17 10:59:06,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:06,230 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:06,250 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 10:59:06,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:06,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104589538] [2025-03-17 10:59:06,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104589538] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:06,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:06,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:06,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922434734] [2025-03-17 10:59:06,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:06,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:06,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:06,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:06,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:06,287 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 248 [2025-03-17 10:59:06,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 248 transitions, 506 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 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 10:59:06,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:06,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 248 [2025-03-17 10:59:06,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:06,400 INFO L124 PetriNetUnfolderBase]: 61/807 cut-off events. [2025-03-17 10:59:06,400 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2025-03-17 10:59:06,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 937 conditions, 807 events. 61/807 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4569 event pairs, 42 based on Foata normal form. 76/750 useless extension candidates. Maximal degree in co-relation 735. Up to 102 conditions per place. [2025-03-17 10:59:06,410 INFO L140 encePairwiseOnDemand]: 239/248 looper letters, 17 selfloop transitions, 2 changer transitions 1/232 dead transitions. [2025-03-17 10:59:06,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 232 transitions, 512 flow [2025-03-17 10:59:06,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:59:06,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:59:06,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2025-03-17 10:59:06,412 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.918010752688172 [2025-03-17 10:59:06,412 INFO L175 Difference]: Start difference. First operand has 243 places, 248 transitions, 506 flow. Second operand 3 states and 683 transitions. [2025-03-17 10:59:06,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 232 transitions, 512 flow [2025-03-17 10:59:06,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 232 transitions, 512 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 10:59:06,416 INFO L231 Difference]: Finished difference. Result has 234 places, 231 transitions, 476 flow [2025-03-17 10:59:06,417 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=476, PETRI_PLACES=234, PETRI_TRANSITIONS=231} [2025-03-17 10:59:06,419 INFO L279 CegarLoopForPetriNet]: 243 programPoint places, -9 predicate places. [2025-03-17 10:59:06,419 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 231 transitions, 476 flow [2025-03-17 10:59:06,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 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 10:59:06,420 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:06,420 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] [2025-03-17 10:59:06,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 10:59:06,420 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-03-17 10:59:06,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:06,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1200586547, now seen corresponding path program 1 times [2025-03-17 10:59:06,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:06,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273093991] [2025-03-17 10:59:06,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:06,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:06,429 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 10:59:06,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 10:59:06,450 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:06,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:06,477 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 10:59:06,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:06,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273093991] [2025-03-17 10:59:06,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273093991] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:06,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:06,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:06,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490602829] [2025-03-17 10:59:06,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:06,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:06,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:06,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:06,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:06,508 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 248 [2025-03-17 10:59:06,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 231 transitions, 476 flow. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 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 10:59:06,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:06,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 248 [2025-03-17 10:59:06,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:06,572 INFO L124 PetriNetUnfolderBase]: 25/550 cut-off events. [2025-03-17 10:59:06,572 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2025-03-17 10:59:06,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611 conditions, 550 events. 25/550 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2469 event pairs, 12 based on Foata normal form. 0/461 useless extension candidates. Maximal degree in co-relation 577. Up to 39 conditions per place. [2025-03-17 10:59:06,577 INFO L140 encePairwiseOnDemand]: 245/248 looper letters, 14 selfloop transitions, 2 changer transitions 0/230 dead transitions. [2025-03-17 10:59:06,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 230 transitions, 506 flow [2025-03-17 10:59:06,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:59:06,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:59:06,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2025-03-17 10:59:06,579 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.918010752688172 [2025-03-17 10:59:06,579 INFO L175 Difference]: Start difference. First operand has 234 places, 231 transitions, 476 flow. Second operand 3 states and 683 transitions. [2025-03-17 10:59:06,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 230 transitions, 506 flow [2025-03-17 10:59:06,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 230 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:59:06,583 INFO L231 Difference]: Finished difference. Result has 232 places, 230 transitions, 474 flow [2025-03-17 10:59:06,583 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=474, PETRI_PLACES=232, PETRI_TRANSITIONS=230} [2025-03-17 10:59:06,585 INFO L279 CegarLoopForPetriNet]: 243 programPoint places, -11 predicate places. [2025-03-17 10:59:06,585 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 230 transitions, 474 flow [2025-03-17 10:59:06,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 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 10:59:06,585 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:06,585 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] [2025-03-17 10:59:06,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 10:59:06,586 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-03-17 10:59:06,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:06,586 INFO L85 PathProgramCache]: Analyzing trace with hash 407485446, now seen corresponding path program 1 times [2025-03-17 10:59:06,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:06,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504583729] [2025-03-17 10:59:06,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:06,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:06,592 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-17 10:59:06,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-17 10:59:06,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:06,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:06,607 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 10:59:06,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:06,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504583729] [2025-03-17 10:59:06,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504583729] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:06,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:06,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:06,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537912432] [2025-03-17 10:59:06,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:06,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:06,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:06,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:06,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:06,625 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 248 [2025-03-17 10:59:06,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 230 transitions, 474 flow. Second operand has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 0 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 10:59:06,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:06,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 248 [2025-03-17 10:59:06,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:06,691 INFO L124 PetriNetUnfolderBase]: 39/747 cut-off events. [2025-03-17 10:59:06,691 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2025-03-17 10:59:06,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 747 events. 39/747 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4154 event pairs, 20 based on Foata normal form. 0/631 useless extension candidates. Maximal degree in co-relation 786. Up to 56 conditions per place. [2025-03-17 10:59:06,696 INFO L140 encePairwiseOnDemand]: 242/248 looper letters, 16 selfloop transitions, 1 changer transitions 0/225 dead transitions. [2025-03-17 10:59:06,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 225 transitions, 498 flow [2025-03-17 10:59:06,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:59:06,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:59:06,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 676 transitions. [2025-03-17 10:59:06,697 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9086021505376344 [2025-03-17 10:59:06,697 INFO L175 Difference]: Start difference. First operand has 232 places, 230 transitions, 474 flow. Second operand 3 states and 676 transitions. [2025-03-17 10:59:06,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 225 transitions, 498 flow [2025-03-17 10:59:06,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 225 transitions, 494 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:59:06,700 INFO L231 Difference]: Finished difference. Result has 227 places, 225 transitions, 462 flow [2025-03-17 10:59:06,701 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=462, PETRI_PLACES=227, PETRI_TRANSITIONS=225} [2025-03-17 10:59:06,701 INFO L279 CegarLoopForPetriNet]: 243 programPoint places, -16 predicate places. [2025-03-17 10:59:06,701 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 225 transitions, 462 flow [2025-03-17 10:59:06,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 0 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 10:59:06,702 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:06,702 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] [2025-03-17 10:59:06,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 10:59:06,702 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-03-17 10:59:06,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:06,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1938809760, now seen corresponding path program 1 times [2025-03-17 10:59:06,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:06,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405935233] [2025-03-17 10:59:06,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:06,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:06,711 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-17 10:59:06,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-17 10:59:06,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:06,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:06,742 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 10:59:06,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:06,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405935233] [2025-03-17 10:59:06,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405935233] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:06,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:06,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:06,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626263307] [2025-03-17 10:59:06,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:06,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:06,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:06,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:06,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:06,779 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 248 [2025-03-17 10:59:06,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 225 transitions, 462 flow. Second operand has 3 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 0 states have call successors, (0), 0 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 10:59:06,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:06,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 248 [2025-03-17 10:59:06,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:06,850 INFO L124 PetriNetUnfolderBase]: 47/706 cut-off events. [2025-03-17 10:59:06,850 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-03-17 10:59:06,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 809 conditions, 706 events. 47/706 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3566 event pairs, 30 based on Foata normal form. 0/598 useless extension candidates. Maximal degree in co-relation 767. Up to 76 conditions per place. [2025-03-17 10:59:06,856 INFO L140 encePairwiseOnDemand]: 245/248 looper letters, 15 selfloop transitions, 2 changer transitions 0/224 dead transitions. [2025-03-17 10:59:06,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 224 transitions, 494 flow [2025-03-17 10:59:06,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:59:06,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:59:06,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 681 transitions. [2025-03-17 10:59:06,858 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9153225806451613 [2025-03-17 10:59:06,858 INFO L175 Difference]: Start difference. First operand has 227 places, 225 transitions, 462 flow. Second operand 3 states and 681 transitions. [2025-03-17 10:59:06,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 224 transitions, 494 flow [2025-03-17 10:59:06,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 224 transitions, 493 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 10:59:06,861 INFO L231 Difference]: Finished difference. Result has 227 places, 224 transitions, 463 flow [2025-03-17 10:59:06,862 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=463, PETRI_PLACES=227, PETRI_TRANSITIONS=224} [2025-03-17 10:59:06,862 INFO L279 CegarLoopForPetriNet]: 243 programPoint places, -16 predicate places. [2025-03-17 10:59:06,862 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 224 transitions, 463 flow [2025-03-17 10:59:06,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 0 states have call successors, (0), 0 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 10:59:06,863 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:06,863 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] [2025-03-17 10:59:06,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 10:59:06,864 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-03-17 10:59:06,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:06,864 INFO L85 PathProgramCache]: Analyzing trace with hash -285575844, now seen corresponding path program 1 times [2025-03-17 10:59:06,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:06,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776850349] [2025-03-17 10:59:06,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:06,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:06,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-17 10:59:06,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 10:59:06,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:06,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:06,907 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 10:59:06,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:06,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776850349] [2025-03-17 10:59:06,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776850349] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:06,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:06,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:06,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657289590] [2025-03-17 10:59:06,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:06,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:06,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:06,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:06,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:06,952 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 248 [2025-03-17 10:59:06,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 224 transitions, 463 flow. Second operand has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 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 10:59:06,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:06,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 248 [2025-03-17 10:59:06,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:07,154 INFO L124 PetriNetUnfolderBase]: 164/2093 cut-off events. [2025-03-17 10:59:07,155 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2025-03-17 10:59:07,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2423 conditions, 2093 events. 164/2093 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 17281 event pairs, 57 based on Foata normal form. 0/1789 useless extension candidates. Maximal degree in co-relation 2381. Up to 204 conditions per place. [2025-03-17 10:59:07,170 INFO L140 encePairwiseOnDemand]: 228/248 looper letters, 32 selfloop transitions, 14 changer transitions 0/243 dead transitions. [2025-03-17 10:59:07,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 243 transitions, 598 flow [2025-03-17 10:59:07,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:59:07,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:59:07,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 691 transitions. [2025-03-17 10:59:07,172 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.928763440860215 [2025-03-17 10:59:07,172 INFO L175 Difference]: Start difference. First operand has 227 places, 224 transitions, 463 flow. Second operand 3 states and 691 transitions. [2025-03-17 10:59:07,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 243 transitions, 598 flow [2025-03-17 10:59:07,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 243 transitions, 594 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:59:07,176 INFO L231 Difference]: Finished difference. Result has 229 places, 238 transitions, 583 flow [2025-03-17 10:59:07,177 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=583, PETRI_PLACES=229, PETRI_TRANSITIONS=238} [2025-03-17 10:59:07,177 INFO L279 CegarLoopForPetriNet]: 243 programPoint places, -14 predicate places. [2025-03-17 10:59:07,177 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 238 transitions, 583 flow [2025-03-17 10:59:07,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 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 10:59:07,178 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:07,178 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:07,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 10:59:07,178 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-03-17 10:59:07,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:07,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1035762319, now seen corresponding path program 1 times [2025-03-17 10:59:07,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:07,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361590996] [2025-03-17 10:59:07,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:07,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:07,188 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 10:59:07,195 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 10:59:07,196 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:07,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:07,261 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 10:59:07,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:07,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361590996] [2025-03-17 10:59:07,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361590996] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:07,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:07,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:59:07,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891752481] [2025-03-17 10:59:07,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:07,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 10:59:07,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:07,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 10:59:07,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 10:59:07,278 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 248 [2025-03-17 10:59:07,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 238 transitions, 583 flow. Second operand has 5 states, 5 states have (on average 222.4) internal successors, (1112), 5 states have internal predecessors, (1112), 0 states have call successors, (0), 0 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 10:59:07,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:07,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 248 [2025-03-17 10:59:07,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:07,481 INFO L124 PetriNetUnfolderBase]: 99/1990 cut-off events. [2025-03-17 10:59:07,481 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2025-03-17 10:59:07,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2263 conditions, 1990 events. 99/1990 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 16348 event pairs, 41 based on Foata normal form. 1/1702 useless extension candidates. Maximal degree in co-relation 2220. Up to 120 conditions per place. [2025-03-17 10:59:07,495 INFO L140 encePairwiseOnDemand]: 244/248 looper letters, 17 selfloop transitions, 0 changer transitions 4/241 dead transitions. [2025-03-17 10:59:07,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 241 transitions, 631 flow [2025-03-17 10:59:07,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 10:59:07,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 10:59:07,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1122 transitions. [2025-03-17 10:59:07,498 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9048387096774193 [2025-03-17 10:59:07,498 INFO L175 Difference]: Start difference. First operand has 229 places, 238 transitions, 583 flow. Second operand 5 states and 1122 transitions. [2025-03-17 10:59:07,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 241 transitions, 631 flow [2025-03-17 10:59:07,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 241 transitions, 603 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:59:07,507 INFO L231 Difference]: Finished difference. Result has 234 places, 237 transitions, 559 flow [2025-03-17 10:59:07,507 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=559, PETRI_PLACES=234, PETRI_TRANSITIONS=237} [2025-03-17 10:59:07,508 INFO L279 CegarLoopForPetriNet]: 243 programPoint places, -9 predicate places. [2025-03-17 10:59:07,509 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 237 transitions, 559 flow [2025-03-17 10:59:07,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 222.4) internal successors, (1112), 5 states have internal predecessors, (1112), 0 states have call successors, (0), 0 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 10:59:07,510 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:07,511 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:59:07,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 10:59:07,511 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-03-17 10:59:07,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:07,511 INFO L85 PathProgramCache]: Analyzing trace with hash 986836228, now seen corresponding path program 1 times [2025-03-17 10:59:07,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:07,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620052631] [2025-03-17 10:59:07,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:07,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:07,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-17 10:59:07,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-17 10:59:07,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:07,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:59:07,532 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 10:59:07,535 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-17 10:59:07,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-17 10:59:07,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:07,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:59:07,558 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 10:59:07,558 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 10:59:07,558 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 40 remaining) [2025-03-17 10:59:07,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2025-03-17 10:59:07,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2025-03-17 10:59:07,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2025-03-17 10:59:07,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2025-03-17 10:59:07,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2025-03-17 10:59:07,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2025-03-17 10:59:07,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2025-03-17 10:59:07,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2025-03-17 10:59:07,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2025-03-17 10:59:07,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2025-03-17 10:59:07,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2025-03-17 10:59:07,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2025-03-17 10:59:07,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2025-03-17 10:59:07,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2025-03-17 10:59:07,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2025-03-17 10:59:07,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2025-03-17 10:59:07,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2025-03-17 10:59:07,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2025-03-17 10:59:07,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2025-03-17 10:59:07,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2025-03-17 10:59:07,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2025-03-17 10:59:07,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2025-03-17 10:59:07,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2025-03-17 10:59:07,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2025-03-17 10:59:07,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2025-03-17 10:59:07,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2025-03-17 10:59:07,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2025-03-17 10:59:07,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2025-03-17 10:59:07,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2025-03-17 10:59:07,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2025-03-17 10:59:07,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2025-03-17 10:59:07,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2025-03-17 10:59:07,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2025-03-17 10:59:07,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2025-03-17 10:59:07,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2025-03-17 10:59:07,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2025-03-17 10:59:07,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2025-03-17 10:59:07,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2025-03-17 10:59:07,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2025-03-17 10:59:07,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 10:59:07,561 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:59:07,562 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 10:59:07,562 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-03-17 10:59:07,607 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:59:07,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 326 places, 333 transitions, 684 flow [2025-03-17 10:59:07,646 INFO L124 PetriNetUnfolderBase]: 14/364 cut-off events. [2025-03-17 10:59:07,647 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-17 10:59:07,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 364 events. 14/364 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1046 event pairs, 0 based on Foata normal form. 0/307 useless extension candidates. Maximal degree in co-relation 272. Up to 4 conditions per place. [2025-03-17 10:59:07,650 INFO L82 GeneralOperation]: Start removeDead. Operand has 326 places, 333 transitions, 684 flow [2025-03-17 10:59:07,661 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 326 places, 333 transitions, 684 flow [2025-03-17 10:59:07,662 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:59:07,662 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;@792c8cce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:59:07,662 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2025-03-17 10:59:07,664 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:59:07,664 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-03-17 10:59:07,664 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:59:07,664 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:07,664 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] [2025-03-17 10:59:07,664 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2025-03-17 10:59:07,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:07,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1264896242, now seen corresponding path program 1 times [2025-03-17 10:59:07,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:07,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738201065] [2025-03-17 10:59:07,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:07,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:07,671 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-17 10:59:07,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-17 10:59:07,672 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:07,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:07,695 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 10:59:07,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:07,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738201065] [2025-03-17 10:59:07,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738201065] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:07,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:07,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:07,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443696481] [2025-03-17 10:59:07,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:07,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:07,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:07,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:07,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:07,741 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 333 [2025-03-17 10:59:07,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 333 transitions, 684 flow. Second operand has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 states have internal predecessors, (886), 0 states have call successors, (0), 0 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 10:59:07,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:07,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 333 [2025-03-17 10:59:07,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:08,318 INFO L124 PetriNetUnfolderBase]: 763/5681 cut-off events. [2025-03-17 10:59:08,319 INFO L125 PetriNetUnfolderBase]: For 319/319 co-relation queries the response was YES. [2025-03-17 10:59:08,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6939 conditions, 5681 events. 763/5681 cut-off events. For 319/319 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 60130 event pairs, 630 based on Foata normal form. 539/5289 useless extension candidates. Maximal degree in co-relation 5717. Up to 1033 conditions per place. [2025-03-17 10:59:08,380 INFO L140 encePairwiseOnDemand]: 322/333 looper letters, 24 selfloop transitions, 2 changer transitions 1/313 dead transitions. [2025-03-17 10:59:08,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 313 transitions, 696 flow [2025-03-17 10:59:08,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:59:08,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:59:08,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 917 transitions. [2025-03-17 10:59:08,383 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9179179179179179 [2025-03-17 10:59:08,383 INFO L175 Difference]: Start difference. First operand has 326 places, 333 transitions, 684 flow. Second operand 3 states and 917 transitions. [2025-03-17 10:59:08,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 313 transitions, 696 flow [2025-03-17 10:59:08,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 313 transitions, 694 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-03-17 10:59:08,387 INFO L231 Difference]: Finished difference. Result has 315 places, 312 transitions, 644 flow [2025-03-17 10:59:08,389 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=644, PETRI_PLACES=315, PETRI_TRANSITIONS=312} [2025-03-17 10:59:08,390 INFO L279 CegarLoopForPetriNet]: 326 programPoint places, -11 predicate places. [2025-03-17 10:59:08,390 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 312 transitions, 644 flow [2025-03-17 10:59:08,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 states have internal predecessors, (886), 0 states have call successors, (0), 0 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 10:59:08,390 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:08,390 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:59:08,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 10:59:08,391 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2025-03-17 10:59:08,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:08,391 INFO L85 PathProgramCache]: Analyzing trace with hash -528590131, now seen corresponding path program 1 times [2025-03-17 10:59:08,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:08,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951566321] [2025-03-17 10:59:08,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:08,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:08,396 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 10:59:08,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 10:59:08,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:08,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:08,422 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 10:59:08,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:08,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951566321] [2025-03-17 10:59:08,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951566321] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:08,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:08,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:08,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194326744] [2025-03-17 10:59:08,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:08,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:08,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:08,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:08,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:08,453 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 333 [2025-03-17 10:59:08,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 312 transitions, 644 flow. Second operand has 3 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 0 states have call successors, (0), 0 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 10:59:08,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:08,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 333 [2025-03-17 10:59:08,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:08,682 INFO L124 PetriNetUnfolderBase]: 163/2232 cut-off events. [2025-03-17 10:59:08,683 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2025-03-17 10:59:08,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2502 conditions, 2232 events. 163/2232 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 18966 event pairs, 108 based on Foata normal form. 0/1849 useless extension candidates. Maximal degree in co-relation 2467. Up to 199 conditions per place. [2025-03-17 10:59:08,706 INFO L140 encePairwiseOnDemand]: 330/333 looper letters, 18 selfloop transitions, 2 changer transitions 0/311 dead transitions. [2025-03-17 10:59:08,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 311 transitions, 682 flow [2025-03-17 10:59:08,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:59:08,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:59:08,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2025-03-17 10:59:08,709 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9219219219219219 [2025-03-17 10:59:08,709 INFO L175 Difference]: Start difference. First operand has 315 places, 312 transitions, 644 flow. Second operand 3 states and 921 transitions. [2025-03-17 10:59:08,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 311 transitions, 682 flow [2025-03-17 10:59:08,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 311 transitions, 678 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:59:08,713 INFO L231 Difference]: Finished difference. Result has 313 places, 311 transitions, 642 flow [2025-03-17 10:59:08,714 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=642, PETRI_PLACES=313, PETRI_TRANSITIONS=311} [2025-03-17 10:59:08,714 INFO L279 CegarLoopForPetriNet]: 326 programPoint places, -13 predicate places. [2025-03-17 10:59:08,714 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 311 transitions, 642 flow [2025-03-17 10:59:08,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 0 states have call successors, (0), 0 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 10:59:08,715 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:08,715 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] [2025-03-17 10:59:08,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-17 10:59:08,715 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2025-03-17 10:59:08,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:08,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1920401734, now seen corresponding path program 1 times [2025-03-17 10:59:08,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:08,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893535972] [2025-03-17 10:59:08,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:08,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:08,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-17 10:59:08,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-17 10:59:08,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:08,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:08,744 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 10:59:08,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:08,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893535972] [2025-03-17 10:59:08,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893535972] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:08,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:08,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:08,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502123403] [2025-03-17 10:59:08,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:08,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:08,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:08,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:08,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:08,768 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 333 [2025-03-17 10:59:08,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 311 transitions, 642 flow. Second operand has 3 states, 3 states have (on average 295.0) internal successors, (885), 3 states have internal predecessors, (885), 0 states have call successors, (0), 0 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 10:59:08,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:08,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 333 [2025-03-17 10:59:08,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:09,146 INFO L124 PetriNetUnfolderBase]: 325/3996 cut-off events. [2025-03-17 10:59:09,146 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2025-03-17 10:59:09,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4478 conditions, 3996 events. 325/3996 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 40803 event pairs, 220 based on Foata normal form. 0/3339 useless extension candidates. Maximal degree in co-relation 4435. Up to 381 conditions per place. [2025-03-17 10:59:09,170 INFO L140 encePairwiseOnDemand]: 326/333 looper letters, 21 selfloop transitions, 1 changer transitions 0/305 dead transitions. [2025-03-17 10:59:09,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 305 transitions, 674 flow [2025-03-17 10:59:09,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:59:09,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:59:09,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 910 transitions. [2025-03-17 10:59:09,173 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9109109109109109 [2025-03-17 10:59:09,173 INFO L175 Difference]: Start difference. First operand has 313 places, 311 transitions, 642 flow. Second operand 3 states and 910 transitions. [2025-03-17 10:59:09,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 305 transitions, 674 flow [2025-03-17 10:59:09,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 305 transitions, 670 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:59:09,176 INFO L231 Difference]: Finished difference. Result has 307 places, 305 transitions, 628 flow [2025-03-17 10:59:09,177 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=628, PETRI_PLACES=307, PETRI_TRANSITIONS=305} [2025-03-17 10:59:09,177 INFO L279 CegarLoopForPetriNet]: 326 programPoint places, -19 predicate places. [2025-03-17 10:59:09,177 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 305 transitions, 628 flow [2025-03-17 10:59:09,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.0) internal successors, (885), 3 states have internal predecessors, (885), 0 states have call successors, (0), 0 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 10:59:09,178 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:09,178 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] [2025-03-17 10:59:09,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-17 10:59:09,178 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2025-03-17 10:59:09,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:09,179 INFO L85 PathProgramCache]: Analyzing trace with hash -978399584, now seen corresponding path program 1 times [2025-03-17 10:59:09,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:09,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514145597] [2025-03-17 10:59:09,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:09,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:09,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-17 10:59:09,186 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-17 10:59:09,186 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:09,186 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:09,211 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 10:59:09,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:09,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514145597] [2025-03-17 10:59:09,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514145597] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:09,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:09,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:09,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293582518] [2025-03-17 10:59:09,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:09,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:09,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:09,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:09,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:09,254 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 333 [2025-03-17 10:59:09,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 305 transitions, 628 flow. Second operand has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 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 10:59:09,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:09,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 333 [2025-03-17 10:59:09,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:09,734 INFO L124 PetriNetUnfolderBase]: 493/4259 cut-off events. [2025-03-17 10:59:09,734 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2025-03-17 10:59:09,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5047 conditions, 4259 events. 493/4259 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 40983 event pairs, 390 based on Foata normal form. 0/3568 useless extension candidates. Maximal degree in co-relation 5004. Up to 652 conditions per place. [2025-03-17 10:59:09,775 INFO L140 encePairwiseOnDemand]: 330/333 looper letters, 21 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2025-03-17 10:59:09,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 304 transitions, 672 flow [2025-03-17 10:59:09,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:59:09,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:59:09,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 915 transitions. [2025-03-17 10:59:09,778 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9159159159159159 [2025-03-17 10:59:09,778 INFO L175 Difference]: Start difference. First operand has 307 places, 305 transitions, 628 flow. Second operand 3 states and 915 transitions. [2025-03-17 10:59:09,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 304 transitions, 672 flow [2025-03-17 10:59:09,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 304 transitions, 671 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 10:59:09,782 INFO L231 Difference]: Finished difference. Result has 307 places, 304 transitions, 629 flow [2025-03-17 10:59:09,783 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=629, PETRI_PLACES=307, PETRI_TRANSITIONS=304} [2025-03-17 10:59:09,783 INFO L279 CegarLoopForPetriNet]: 326 programPoint places, -19 predicate places. [2025-03-17 10:59:09,783 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 304 transitions, 629 flow [2025-03-17 10:59:09,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 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 10:59:09,784 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:09,784 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] [2025-03-17 10:59:09,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-17 10:59:09,784 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2025-03-17 10:59:09,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:09,785 INFO L85 PathProgramCache]: Analyzing trace with hash 433558753, now seen corresponding path program 1 times [2025-03-17 10:59:09,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:09,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161470889] [2025-03-17 10:59:09,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:09,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:09,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-17 10:59:09,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 10:59:09,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:09,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:09,817 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 10:59:09,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:09,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161470889] [2025-03-17 10:59:09,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161470889] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:09,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:09,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:09,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523307420] [2025-03-17 10:59:09,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:09,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:09,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:09,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:09,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:09,858 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 333 [2025-03-17 10:59:09,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 304 transitions, 629 flow. Second operand has 3 states, 3 states have (on average 283.6666666666667) internal successors, (851), 3 states have internal predecessors, (851), 0 states have call successors, (0), 0 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 10:59:09,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:09,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 333 [2025-03-17 10:59:09,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:12,672 INFO L124 PetriNetUnfolderBase]: 4201/31328 cut-off events. [2025-03-17 10:59:12,673 INFO L125 PetriNetUnfolderBase]: For 466/466 co-relation queries the response was YES. [2025-03-17 10:59:12,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37787 conditions, 31328 events. 4201/31328 cut-off events. For 466/466 co-relation queries the response was YES. Maximal size of possible extension queue 735. Compared 462580 event pairs, 1667 based on Foata normal form. 0/26528 useless extension candidates. Maximal degree in co-relation 37744. Up to 4132 conditions per place. [2025-03-17 10:59:12,988 INFO L140 encePairwiseOnDemand]: 303/333 looper letters, 48 selfloop transitions, 21 changer transitions 0/333 dead transitions. [2025-03-17 10:59:12,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 333 transitions, 835 flow [2025-03-17 10:59:12,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:59:12,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:59:12,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 924 transitions. [2025-03-17 10:59:12,991 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.924924924924925 [2025-03-17 10:59:12,991 INFO L175 Difference]: Start difference. First operand has 307 places, 304 transitions, 629 flow. Second operand 3 states and 924 transitions. [2025-03-17 10:59:12,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 333 transitions, 835 flow [2025-03-17 10:59:12,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 333 transitions, 831 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:59:12,997 INFO L231 Difference]: Finished difference. Result has 309 places, 325 transitions, 811 flow [2025-03-17 10:59:12,997 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=811, PETRI_PLACES=309, PETRI_TRANSITIONS=325} [2025-03-17 10:59:12,998 INFO L279 CegarLoopForPetriNet]: 326 programPoint places, -17 predicate places. [2025-03-17 10:59:12,998 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 325 transitions, 811 flow [2025-03-17 10:59:12,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 283.6666666666667) internal successors, (851), 3 states have internal predecessors, (851), 0 states have call successors, (0), 0 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 10:59:12,999 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:12,999 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] [2025-03-17 10:59:12,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-17 10:59:12,999 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2025-03-17 10:59:13,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:13,000 INFO L85 PathProgramCache]: Analyzing trace with hash 2037702538, now seen corresponding path program 1 times [2025-03-17 10:59:13,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:13,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204559794] [2025-03-17 10:59:13,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:13,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:13,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-17 10:59:13,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 10:59:13,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:13,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:13,084 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 10:59:13,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:13,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204559794] [2025-03-17 10:59:13,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204559794] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:13,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:13,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 10:59:13,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550425398] [2025-03-17 10:59:13,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:13,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 10:59:13,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:13,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 10:59:13,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 10:59:13,159 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 333 [2025-03-17 10:59:13,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 325 transitions, 811 flow. Second operand has 4 states, 4 states have (on average 307.0) internal successors, (1228), 4 states have internal predecessors, (1228), 0 states have call successors, (0), 0 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 10:59:13,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:13,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 333 [2025-03-17 10:59:13,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:14,163 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1013] L1045-3-->L1045: Formula: (and (= |v_#pthreadsMutex_17| (store |v_#pthreadsMutex_18| |v_~#lock~0.base_15| (store (select |v_#pthreadsMutex_18| |v_~#lock~0.base_15|) |v_~#lock~0.offset_15| 0))) (= |v_thrThread3of3ForFork0_#t~ret6#1_1| 0)) InVars {~#lock~0.base=|v_~#lock~0.base_15|, #pthreadsMutex=|v_#pthreadsMutex_18|, ~#lock~0.offset=|v_~#lock~0.offset_15|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_17|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|, thrThread3of3ForFork0_#t~ret6#1=|v_thrThread3of3ForFork0_#t~ret6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread3of3ForFork0_#t~ret6#1][152], [337#(= |#race~len~0| 0), 346#true, 323#true, 199#L1045true, Black: 341#true, 103#L1061-1true, 71#L1045true, 325#true, 343#(= |#race~next~0| 0), 327#true, 89#L1043-7true]) [2025-03-17 10:59:14,163 INFO L294 olderBase$Statistics]: this new event has 122 ancestors and is cut-off event [2025-03-17 10:59:14,164 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2025-03-17 10:59:14,164 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2025-03-17 10:59:14,164 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2025-03-17 10:59:14,849 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1013] L1045-3-->L1045: Formula: (and (= |v_#pthreadsMutex_17| (store |v_#pthreadsMutex_18| |v_~#lock~0.base_15| (store (select |v_#pthreadsMutex_18| |v_~#lock~0.base_15|) |v_~#lock~0.offset_15| 0))) (= |v_thrThread3of3ForFork0_#t~ret6#1_1| 0)) InVars {~#lock~0.base=|v_~#lock~0.base_15|, #pthreadsMutex=|v_#pthreadsMutex_18|, ~#lock~0.offset=|v_~#lock~0.offset_15|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_17|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|, thrThread3of3ForFork0_#t~ret6#1=|v_thrThread3of3ForFork0_#t~ret6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread3of3ForFork0_#t~ret6#1][153], [337#(= |#race~len~0| 0), 139#L1045true, 323#true, 199#L1045true, 349#(and (= |thrThread1of3ForFork0_~end~0#1| 0) (= |thrThread1of3ForFork0_~c~0#1| 0)), Black: 343#(= |#race~next~0| 0), 103#L1061-1true, 71#L1045true, 325#true, 341#true, 327#true]) [2025-03-17 10:59:14,850 INFO L294 olderBase$Statistics]: this new event has 131 ancestors and is cut-off event [2025-03-17 10:59:14,850 INFO L297 olderBase$Statistics]: existing Event has 120 ancestors and is cut-off event [2025-03-17 10:59:14,850 INFO L297 olderBase$Statistics]: existing Event has 120 ancestors and is cut-off event [2025-03-17 10:59:14,850 INFO L297 olderBase$Statistics]: existing Event has 120 ancestors and is cut-off event [2025-03-17 10:59:14,927 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1013] L1045-3-->L1045: Formula: (and (= |v_#pthreadsMutex_17| (store |v_#pthreadsMutex_18| |v_~#lock~0.base_15| (store (select |v_#pthreadsMutex_18| |v_~#lock~0.base_15|) |v_~#lock~0.offset_15| 0))) (= |v_thrThread3of3ForFork0_#t~ret6#1_1| 0)) InVars {~#lock~0.base=|v_~#lock~0.base_15|, #pthreadsMutex=|v_#pthreadsMutex_18|, ~#lock~0.offset=|v_~#lock~0.offset_15|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_17|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|, thrThread3of3ForFork0_#t~ret6#1=|v_thrThread3of3ForFork0_#t~ret6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread3of3ForFork0_#t~ret6#1][152], [337#(= |#race~len~0| 0), 346#true, 323#true, 199#L1045true, Black: 343#(= |#race~next~0| 0), 103#L1061-1true, 71#L1045true, 325#true, 341#true, 327#true, 89#L1043-7true]) [2025-03-17 10:59:14,927 INFO L294 olderBase$Statistics]: this new event has 133 ancestors and is cut-off event [2025-03-17 10:59:14,927 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2025-03-17 10:59:14,927 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2025-03-17 10:59:14,927 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2025-03-17 10:59:15,069 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1013] L1045-3-->L1045: Formula: (and (= |v_#pthreadsMutex_17| (store |v_#pthreadsMutex_18| |v_~#lock~0.base_15| (store (select |v_#pthreadsMutex_18| |v_~#lock~0.base_15|) |v_~#lock~0.offset_15| 0))) (= |v_thrThread3of3ForFork0_#t~ret6#1_1| 0)) InVars {~#lock~0.base=|v_~#lock~0.base_15|, #pthreadsMutex=|v_#pthreadsMutex_18|, ~#lock~0.offset=|v_~#lock~0.offset_15|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_17|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|, thrThread3of3ForFork0_#t~ret6#1=|v_thrThread3of3ForFork0_#t~ret6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread3of3ForFork0_#t~ret6#1][152], [337#(= |#race~len~0| 0), 346#true, 323#true, 199#L1045true, Black: 343#(= |#race~next~0| 0), 259#L1043-4true, 103#L1061-1true, 71#L1045true, 325#true, 341#true, 327#true]) [2025-03-17 10:59:15,070 INFO L294 olderBase$Statistics]: this new event has 136 ancestors and is cut-off event [2025-03-17 10:59:15,070 INFO L297 olderBase$Statistics]: existing Event has 125 ancestors and is cut-off event [2025-03-17 10:59:15,070 INFO L297 olderBase$Statistics]: existing Event has 125 ancestors and is cut-off event [2025-03-17 10:59:15,070 INFO L297 olderBase$Statistics]: existing Event has 125 ancestors and is cut-off event [2025-03-17 10:59:16,173 INFO L124 PetriNetUnfolderBase]: 3148/31373 cut-off events. [2025-03-17 10:59:16,173 INFO L125 PetriNetUnfolderBase]: For 856/864 co-relation queries the response was YES. [2025-03-17 10:59:16,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38075 conditions, 31373 events. 3148/31373 cut-off events. For 856/864 co-relation queries the response was YES. Maximal size of possible extension queue 724. Compared 473900 event pairs, 1451 based on Foata normal form. 59/26880 useless extension candidates. Maximal degree in co-relation 38032. Up to 2767 conditions per place. [2025-03-17 10:59:16,457 INFO L140 encePairwiseOnDemand]: 329/333 looper letters, 27 selfloop transitions, 3 changer transitions 0/338 dead transitions. [2025-03-17 10:59:16,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 338 transitions, 917 flow [2025-03-17 10:59:16,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 10:59:16,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 10:59:16,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1251 transitions. [2025-03-17 10:59:16,461 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9391891891891891 [2025-03-17 10:59:16,461 INFO L175 Difference]: Start difference. First operand has 309 places, 325 transitions, 811 flow. Second operand 4 states and 1251 transitions. [2025-03-17 10:59:16,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 338 transitions, 917 flow [2025-03-17 10:59:16,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 338 transitions, 875 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:59:16,489 INFO L231 Difference]: Finished difference. Result has 311 places, 325 transitions, 779 flow [2025-03-17 10:59:16,489 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=769, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=779, PETRI_PLACES=311, PETRI_TRANSITIONS=325} [2025-03-17 10:59:16,489 INFO L279 CegarLoopForPetriNet]: 326 programPoint places, -15 predicate places. [2025-03-17 10:59:16,490 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 325 transitions, 779 flow [2025-03-17 10:59:16,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 307.0) internal successors, (1228), 4 states have internal predecessors, (1228), 0 states have call successors, (0), 0 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 10:59:16,490 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:16,490 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 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] [2025-03-17 10:59:16,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-17 10:59:16,491 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2025-03-17 10:59:16,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:16,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1650077461, now seen corresponding path program 1 times [2025-03-17 10:59:16,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:16,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949215757] [2025-03-17 10:59:16,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:16,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:16,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-17 10:59:16,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-17 10:59:16,509 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:16,509 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:16,560 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 10:59:16,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:16,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949215757] [2025-03-17 10:59:16,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949215757] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:16,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:16,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:59:16,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566732871] [2025-03-17 10:59:16,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:16,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 10:59:16,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:16,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 10:59:16,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 10:59:16,578 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 333 [2025-03-17 10:59:16,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 325 transitions, 779 flow. Second operand has 5 states, 5 states have (on average 301.6) internal successors, (1508), 5 states have internal predecessors, (1508), 0 states have call successors, (0), 0 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 10:59:16,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:16,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 333 [2025-03-17 10:59:16,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:17,910 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1013] L1045-3-->L1045: Formula: (and (= |v_#pthreadsMutex_17| (store |v_#pthreadsMutex_18| |v_~#lock~0.base_15| (store (select |v_#pthreadsMutex_18| |v_~#lock~0.base_15|) |v_~#lock~0.offset_15| 0))) (= |v_thrThread3of3ForFork0_#t~ret6#1_1| 0)) InVars {~#lock~0.base=|v_~#lock~0.base_15|, #pthreadsMutex=|v_#pthreadsMutex_18|, ~#lock~0.offset=|v_~#lock~0.offset_15|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_17|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|, thrThread3of3ForFork0_#t~ret6#1=|v_thrThread3of3ForFork0_#t~ret6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread3of3ForFork0_#t~ret6#1][144], [337#(= |#race~len~0| 0), 346#true, 323#true, 199#L1045true, Black: 341#true, 351#true, 103#L1061-1true, 325#true, 71#L1045true, 327#true, 263#L1043true, Black: 349#(and (= |thrThread1of3ForFork0_~end~0#1| 0) (= |thrThread1of3ForFork0_~c~0#1| 0))]) [2025-03-17 10:59:17,910 INFO L294 olderBase$Statistics]: this new event has 131 ancestors and is cut-off event [2025-03-17 10:59:17,910 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2025-03-17 10:59:17,910 INFO L297 olderBase$Statistics]: existing Event has 120 ancestors and is cut-off event [2025-03-17 10:59:17,910 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2025-03-17 10:59:17,994 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1097] L1045-3-->L1045: Formula: (and (= |v_#pthreadsMutex_17| (store |v_#pthreadsMutex_18| |v_~#lock~0.base_15| (store (select |v_#pthreadsMutex_18| |v_~#lock~0.base_15|) |v_~#lock~0.offset_15| 0))) (= |v_thrThread2of3ForFork0_#t~ret6#1_1| 0)) InVars {~#lock~0.base=|v_~#lock~0.base_15|, #pthreadsMutex=|v_#pthreadsMutex_18|, ~#lock~0.offset=|v_~#lock~0.offset_15|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_17|, ~#lock~0.offset=|v_~#lock~0.offset_15|, ~#lock~0.base=|v_~#lock~0.base_15|, thrThread2of3ForFork0_#t~ret6#1=|v_thrThread2of3ForFork0_#t~ret6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread2of3ForFork0_#t~ret6#1][115], [337#(= |#race~len~0| 0), 139#L1045true, 323#true, 199#L1045true, Black: 343#(= |#race~next~0| 0), 349#(and (= |thrThread1of3ForFork0_~end~0#1| 0) (= |thrThread1of3ForFork0_~c~0#1| 0)), 351#true, 103#L1061-1true, 325#true, 71#L1045true, 327#true]) [2025-03-17 10:59:17,994 INFO L294 olderBase$Statistics]: this new event has 134 ancestors and is cut-off event [2025-03-17 10:59:17,994 INFO L297 olderBase$Statistics]: existing Event has 123 ancestors and is cut-off event [2025-03-17 10:59:17,994 INFO L297 olderBase$Statistics]: existing Event has 123 ancestors and is cut-off event [2025-03-17 10:59:17,995 INFO L297 olderBase$Statistics]: existing Event has 123 ancestors and is cut-off event [2025-03-17 10:59:19,383 INFO L124 PetriNetUnfolderBase]: 2233/24088 cut-off events. [2025-03-17 10:59:19,384 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2025-03-17 10:59:19,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28133 conditions, 24088 events. 2233/24088 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 568. Compared 353993 event pairs, 1151 based on Foata normal form. 1/20427 useless extension candidates. Maximal degree in co-relation 28088. Up to 2300 conditions per place. [2025-03-17 10:59:19,591 INFO L140 encePairwiseOnDemand]: 329/333 looper letters, 20 selfloop transitions, 0 changer transitions 4/328 dead transitions. [2025-03-17 10:59:19,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 328 transitions, 833 flow [2025-03-17 10:59:19,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 10:59:19,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 10:59:19,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1520 transitions. [2025-03-17 10:59:19,595 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9129129129129129 [2025-03-17 10:59:19,595 INFO L175 Difference]: Start difference. First operand has 311 places, 325 transitions, 779 flow. Second operand 5 states and 1520 transitions. [2025-03-17 10:59:19,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 328 transitions, 833 flow [2025-03-17 10:59:19,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 328 transitions, 827 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 10:59:19,599 INFO L231 Difference]: Finished difference. Result has 315 places, 324 transitions, 777 flow [2025-03-17 10:59:19,600 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=773, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=777, PETRI_PLACES=315, PETRI_TRANSITIONS=324} [2025-03-17 10:59:19,600 INFO L279 CegarLoopForPetriNet]: 326 programPoint places, -11 predicate places. [2025-03-17 10:59:19,600 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 324 transitions, 777 flow [2025-03-17 10:59:19,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 301.6) internal successors, (1508), 5 states have internal predecessors, (1508), 0 states have call successors, (0), 0 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 10:59:19,601 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:19,601 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 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] [2025-03-17 10:59:19,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-17 10:59:19,601 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2025-03-17 10:59:19,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:19,602 INFO L85 PathProgramCache]: Analyzing trace with hash -650181013, now seen corresponding path program 1 times [2025-03-17 10:59:19,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:19,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644687839] [2025-03-17 10:59:19,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:19,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:19,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-17 10:59:19,614 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-17 10:59:19,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:19,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:59:19,615 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 10:59:19,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-17 10:59:19,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-17 10:59:19,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:19,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:59:19,633 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 10:59:19,633 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 10:59:19,633 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 51 remaining) [2025-03-17 10:59:19,633 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (49 of 51 remaining) [2025-03-17 10:59:19,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (48 of 51 remaining) [2025-03-17 10:59:19,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (47 of 51 remaining) [2025-03-17 10:59:19,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (46 of 51 remaining) [2025-03-17 10:59:19,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (45 of 51 remaining) [2025-03-17 10:59:19,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 51 remaining) [2025-03-17 10:59:19,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (43 of 51 remaining) [2025-03-17 10:59:19,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (42 of 51 remaining) [2025-03-17 10:59:19,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (41 of 51 remaining) [2025-03-17 10:59:19,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (40 of 51 remaining) [2025-03-17 10:59:19,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (39 of 51 remaining) [2025-03-17 10:59:19,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (38 of 51 remaining) [2025-03-17 10:59:19,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (37 of 51 remaining) [2025-03-17 10:59:19,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (36 of 51 remaining) [2025-03-17 10:59:19,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (35 of 51 remaining) [2025-03-17 10:59:19,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (34 of 51 remaining) [2025-03-17 10:59:19,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (33 of 51 remaining) [2025-03-17 10:59:19,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (32 of 51 remaining) [2025-03-17 10:59:19,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (31 of 51 remaining) [2025-03-17 10:59:19,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (30 of 51 remaining) [2025-03-17 10:59:19,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (29 of 51 remaining) [2025-03-17 10:59:19,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (28 of 51 remaining) [2025-03-17 10:59:19,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (27 of 51 remaining) [2025-03-17 10:59:19,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (26 of 51 remaining) [2025-03-17 10:59:19,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (25 of 51 remaining) [2025-03-17 10:59:19,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (24 of 51 remaining) [2025-03-17 10:59:19,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (23 of 51 remaining) [2025-03-17 10:59:19,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (22 of 51 remaining) [2025-03-17 10:59:19,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (21 of 51 remaining) [2025-03-17 10:59:19,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (20 of 51 remaining) [2025-03-17 10:59:19,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (19 of 51 remaining) [2025-03-17 10:59:19,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (18 of 51 remaining) [2025-03-17 10:59:19,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (17 of 51 remaining) [2025-03-17 10:59:19,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (16 of 51 remaining) [2025-03-17 10:59:19,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (15 of 51 remaining) [2025-03-17 10:59:19,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (14 of 51 remaining) [2025-03-17 10:59:19,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (13 of 51 remaining) [2025-03-17 10:59:19,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (12 of 51 remaining) [2025-03-17 10:59:19,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (11 of 51 remaining) [2025-03-17 10:59:19,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (10 of 51 remaining) [2025-03-17 10:59:19,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (9 of 51 remaining) [2025-03-17 10:59:19,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (8 of 51 remaining) [2025-03-17 10:59:19,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (7 of 51 remaining) [2025-03-17 10:59:19,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 51 remaining) [2025-03-17 10:59:19,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (5 of 51 remaining) [2025-03-17 10:59:19,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (4 of 51 remaining) [2025-03-17 10:59:19,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (3 of 51 remaining) [2025-03-17 10:59:19,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (2 of 51 remaining) [2025-03-17 10:59:19,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (1 of 51 remaining) [2025-03-17 10:59:19,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (0 of 51 remaining) [2025-03-17 10:59:19,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-17 10:59:19,637 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:59:19,637 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 10:59:19,637 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-03-17 10:59:19,676 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:59:19,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 409 places, 418 transitions, 864 flow [2025-03-17 10:59:19,719 INFO L124 PetriNetUnfolderBase]: 18/460 cut-off events. [2025-03-17 10:59:19,719 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-03-17 10:59:19,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 460 events. 18/460 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1604 event pairs, 0 based on Foata normal form. 0/387 useless extension candidates. Maximal degree in co-relation 372. Up to 5 conditions per place. [2025-03-17 10:59:19,726 INFO L82 GeneralOperation]: Start removeDead. Operand has 409 places, 418 transitions, 864 flow [2025-03-17 10:59:19,731 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 409 places, 418 transitions, 864 flow [2025-03-17 10:59:19,732 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:59:19,732 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;@792c8cce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:59:19,732 INFO L334 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2025-03-17 10:59:19,733 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:59:19,733 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-03-17 10:59:19,733 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:59:19,733 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:19,734 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] [2025-03-17 10:59:19,734 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-03-17 10:59:19,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:19,734 INFO L85 PathProgramCache]: Analyzing trace with hash -546355792, now seen corresponding path program 1 times [2025-03-17 10:59:19,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:19,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687077061] [2025-03-17 10:59:19,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:19,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:19,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-17 10:59:19,739 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-17 10:59:19,739 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:19,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:19,748 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 10:59:19,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:19,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687077061] [2025-03-17 10:59:19,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687077061] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:19,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:19,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:19,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850428795] [2025-03-17 10:59:19,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:19,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:19,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:19,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:19,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:19,804 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 418 [2025-03-17 10:59:19,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 418 transitions, 864 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 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 10:59:19,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:19,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 418 [2025-03-17 10:59:19,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:24,649 INFO L124 PetriNetUnfolderBase]: 7737/41866 cut-off events. [2025-03-17 10:59:24,649 INFO L125 PetriNetUnfolderBase]: For 3752/3752 co-relation queries the response was YES. [2025-03-17 10:59:25,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53415 conditions, 41866 events. 7737/41866 cut-off events. For 3752/3752 co-relation queries the response was YES. Maximal size of possible extension queue 1152. Compared 611602 event pairs, 6804 based on Foata normal form. 4054/39389 useless extension candidates. Maximal degree in co-relation 44089. Up to 9608 conditions per place. [2025-03-17 10:59:25,322 INFO L140 encePairwiseOnDemand]: 405/418 looper letters, 31 selfloop transitions, 2 changer transitions 1/394 dead transitions. [2025-03-17 10:59:25,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 394 transitions, 882 flow [2025-03-17 10:59:25,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:59:25,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:59:25,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1151 transitions. [2025-03-17 10:59:25,325 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9178628389154705 [2025-03-17 10:59:25,325 INFO L175 Difference]: Start difference. First operand has 409 places, 418 transitions, 864 flow. Second operand 3 states and 1151 transitions. [2025-03-17 10:59:25,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 394 transitions, 882 flow [2025-03-17 10:59:25,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 394 transitions, 876 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-03-17 10:59:25,331 INFO L231 Difference]: Finished difference. Result has 396 places, 393 transitions, 812 flow [2025-03-17 10:59:25,331 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=812, PETRI_PLACES=396, PETRI_TRANSITIONS=393} [2025-03-17 10:59:25,332 INFO L279 CegarLoopForPetriNet]: 409 programPoint places, -13 predicate places. [2025-03-17 10:59:25,332 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 393 transitions, 812 flow [2025-03-17 10:59:25,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 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 10:59:25,332 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:25,332 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] [2025-03-17 10:59:25,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-17 10:59:25,333 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-03-17 10:59:25,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:25,333 INFO L85 PathProgramCache]: Analyzing trace with hash -317055283, now seen corresponding path program 1 times [2025-03-17 10:59:25,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:25,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66706785] [2025-03-17 10:59:25,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:25,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:25,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 10:59:25,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 10:59:25,340 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:25,340 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:25,355 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 10:59:25,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:25,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66706785] [2025-03-17 10:59:25,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66706785] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:25,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:25,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:25,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180250949] [2025-03-17 10:59:25,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:25,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:25,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:25,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:25,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:25,388 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 418 [2025-03-17 10:59:25,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 393 transitions, 812 flow. Second operand has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 0 states have call successors, (0), 0 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 10:59:25,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:25,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 418 [2025-03-17 10:59:25,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:26,527 INFO L124 PetriNetUnfolderBase]: 909/9194 cut-off events. [2025-03-17 10:59:26,528 INFO L125 PetriNetUnfolderBase]: For 259/259 co-relation queries the response was YES. [2025-03-17 10:59:26,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10489 conditions, 9194 events. 909/9194 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 110362 event pairs, 684 based on Foata normal form. 0/7621 useless extension candidates. Maximal degree in co-relation 10453. Up to 1031 conditions per place. [2025-03-17 10:59:26,687 INFO L140 encePairwiseOnDemand]: 415/418 looper letters, 22 selfloop transitions, 2 changer transitions 0/392 dead transitions. [2025-03-17 10:59:26,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 392 transitions, 858 flow [2025-03-17 10:59:26,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:59:26,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:59:26,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1159 transitions. [2025-03-17 10:59:26,689 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9242424242424242 [2025-03-17 10:59:26,689 INFO L175 Difference]: Start difference. First operand has 396 places, 393 transitions, 812 flow. Second operand 3 states and 1159 transitions. [2025-03-17 10:59:26,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 392 transitions, 858 flow [2025-03-17 10:59:26,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 392 transitions, 854 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:59:26,694 INFO L231 Difference]: Finished difference. Result has 394 places, 392 transitions, 810 flow [2025-03-17 10:59:26,694 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=810, PETRI_PLACES=394, PETRI_TRANSITIONS=392} [2025-03-17 10:59:26,695 INFO L279 CegarLoopForPetriNet]: 409 programPoint places, -15 predicate places. [2025-03-17 10:59:26,695 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 392 transitions, 810 flow [2025-03-17 10:59:26,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 0 states have call successors, (0), 0 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 10:59:26,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:26,695 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] [2025-03-17 10:59:26,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-17 10:59:26,696 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-03-17 10:59:26,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:26,696 INFO L85 PathProgramCache]: Analyzing trace with hash -2074796602, now seen corresponding path program 1 times [2025-03-17 10:59:26,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:26,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237991203] [2025-03-17 10:59:26,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:26,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:26,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-17 10:59:26,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-17 10:59:26,702 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:26,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:26,712 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 10:59:26,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:26,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237991203] [2025-03-17 10:59:26,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237991203] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:26,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:26,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:26,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848735299] [2025-03-17 10:59:26,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:26,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:26,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:26,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:26,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:26,732 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 418 [2025-03-17 10:59:26,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 392 transitions, 810 flow. Second operand has 3 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 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 10:59:26,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:26,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 418 [2025-03-17 10:59:26,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:29,153 INFO L124 PetriNetUnfolderBase]: 2261/20895 cut-off events. [2025-03-17 10:59:29,154 INFO L125 PetriNetUnfolderBase]: For 473/473 co-relation queries the response was YES. [2025-03-17 10:59:29,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23878 conditions, 20895 events. 2261/20895 cut-off events. For 473/473 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 295816 event pairs, 1720 based on Foata normal form. 0/17497 useless extension candidates. Maximal degree in co-relation 23834. Up to 2506 conditions per place. [2025-03-17 10:59:29,602 INFO L140 encePairwiseOnDemand]: 410/418 looper letters, 26 selfloop transitions, 1 changer transitions 0/385 dead transitions. [2025-03-17 10:59:29,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 385 transitions, 850 flow [2025-03-17 10:59:29,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:59:29,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:59:29,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1144 transitions. [2025-03-17 10:59:29,604 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9122807017543859 [2025-03-17 10:59:29,604 INFO L175 Difference]: Start difference. First operand has 394 places, 392 transitions, 810 flow. Second operand 3 states and 1144 transitions. [2025-03-17 10:59:29,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 385 transitions, 850 flow [2025-03-17 10:59:29,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 385 transitions, 846 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:59:29,609 INFO L231 Difference]: Finished difference. Result has 387 places, 385 transitions, 794 flow [2025-03-17 10:59:29,610 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=794, PETRI_PLACES=387, PETRI_TRANSITIONS=385} [2025-03-17 10:59:29,610 INFO L279 CegarLoopForPetriNet]: 409 programPoint places, -22 predicate places. [2025-03-17 10:59:29,610 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 385 transitions, 794 flow [2025-03-17 10:59:29,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 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 10:59:29,611 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:29,611 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] [2025-03-17 10:59:29,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-17 10:59:29,611 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-03-17 10:59:29,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:29,611 INFO L85 PathProgramCache]: Analyzing trace with hash 252955936, now seen corresponding path program 1 times [2025-03-17 10:59:29,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:29,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639635936] [2025-03-17 10:59:29,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:29,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:29,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-17 10:59:29,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-17 10:59:29,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:29,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:29,635 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 10:59:29,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:29,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639635936] [2025-03-17 10:59:29,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639635936] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:29,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:29,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:29,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086382639] [2025-03-17 10:59:29,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:29,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:29,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:29,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:29,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:29,687 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 418 [2025-03-17 10:59:29,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 385 transitions, 794 flow. Second operand has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 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 10:59:29,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:29,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 418 [2025-03-17 10:59:29,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:59:33,454 INFO L124 PetriNetUnfolderBase]: 4251/26676 cut-off events. [2025-03-17 10:59:33,455 INFO L125 PetriNetUnfolderBase]: For 781/781 co-relation queries the response was YES. [2025-03-17 10:59:33,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32649 conditions, 26676 events. 4251/26676 cut-off events. For 781/781 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 358655 event pairs, 3630 based on Foata normal form. 0/22471 useless extension candidates. Maximal degree in co-relation 32605. Up to 5188 conditions per place. [2025-03-17 10:59:33,881 INFO L140 encePairwiseOnDemand]: 415/418 looper letters, 27 selfloop transitions, 2 changer transitions 0/384 dead transitions. [2025-03-17 10:59:33,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 384 transitions, 850 flow [2025-03-17 10:59:33,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:59:33,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:59:33,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1149 transitions. [2025-03-17 10:59:33,884 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.916267942583732 [2025-03-17 10:59:33,884 INFO L175 Difference]: Start difference. First operand has 387 places, 385 transitions, 794 flow. Second operand 3 states and 1149 transitions. [2025-03-17 10:59:33,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 384 transitions, 850 flow [2025-03-17 10:59:33,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 384 transitions, 849 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 10:59:33,888 INFO L231 Difference]: Finished difference. Result has 387 places, 384 transitions, 795 flow [2025-03-17 10:59:33,889 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=791, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=795, PETRI_PLACES=387, PETRI_TRANSITIONS=384} [2025-03-17 10:59:33,889 INFO L279 CegarLoopForPetriNet]: 409 programPoint places, -22 predicate places. [2025-03-17 10:59:33,889 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 384 transitions, 795 flow [2025-03-17 10:59:33,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 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 10:59:33,889 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:59:33,890 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:59:33,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-17 10:59:33,890 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-03-17 10:59:33,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:59:33,890 INFO L85 PathProgramCache]: Analyzing trace with hash -2126348177, now seen corresponding path program 1 times [2025-03-17 10:59:33,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:59:33,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436038490] [2025-03-17 10:59:33,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:59:33,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:59:33,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-17 10:59:33,899 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 10:59:33,899 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:59:33,899 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:59:33,914 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 10:59:33,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:59:33,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436038490] [2025-03-17 10:59:33,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436038490] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:59:33,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:59:33,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:59:33,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287664447] [2025-03-17 10:59:33,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:59:33,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:59:33,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:59:33,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:59:33,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:59:33,961 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 351 out of 418 [2025-03-17 10:59:33,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 384 transitions, 795 flow. Second operand has 3 states, 3 states have (on average 352.6666666666667) internal successors, (1058), 3 states have internal predecessors, (1058), 0 states have call successors, (0), 0 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 10:59:33,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:59:33,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 351 of 418 [2025-03-17 10:59:33,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand