./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.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-ext/40_barrier_vf-b.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 7e4eda3d9731a5d805cffabe3eaaa057ba5ed6235ab584548c3730cf4f9dedf3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 10:46:03,267 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 10:46:03,326 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-17 10:46:03,332 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 10:46:03,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 10:46:03,349 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 10:46:03,350 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 10:46:03,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 10:46:03,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 10:46:03,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 10:46:03,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 10:46:03,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 10:46:03,352 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 10:46:03,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 10:46:03,352 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 10:46:03,353 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 10:46:03,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 10:46:03,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 10:46:03,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 10:46:03,353 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 10:46:03,353 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 10:46:03,353 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 10:46:03,353 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-17 10:46:03,353 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 10:46:03,353 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 10:46:03,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 10:46:03,353 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 10:46:03,353 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 10:46:03,353 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 10:46:03,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 10:46:03,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 10:46:03,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 10:46:03,354 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 10:46:03,354 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 10:46:03,354 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 10:46:03,354 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 10:46:03,354 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 10:46:03,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 10:46:03,355 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 10:46:03,355 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 10:46:03,355 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 10:46:03,355 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 10:46:03,355 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e4eda3d9731a5d805cffabe3eaaa057ba5ed6235ab584548c3730cf4f9dedf3 [2025-03-17 10:46:03,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 10:46:03,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 10:46:03,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 10:46:03,647 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 10:46:03,647 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 10:46:03,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i [2025-03-17 10:46:04,751 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc37a1371/2edbb8cc1d774846b6644f568db833d6/FLAGe546639ca [2025-03-17 10:46:05,017 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 10:46:05,018 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i [2025-03-17 10:46:05,028 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc37a1371/2edbb8cc1d774846b6644f568db833d6/FLAGe546639ca [2025-03-17 10:46:05,322 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc37a1371/2edbb8cc1d774846b6644f568db833d6 [2025-03-17 10:46:05,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 10:46:05,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 10:46:05,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 10:46:05,328 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 10:46:05,331 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 10:46:05,332 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 10:46:05" (1/1) ... [2025-03-17 10:46:05,333 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d67457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:46:05, skipping insertion in model container [2025-03-17 10:46:05,333 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 10:46:05" (1/1) ... [2025-03-17 10:46:05,360 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 10:46:05,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 10:46:05,621 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 10:46:05,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 10:46:05,689 INFO L204 MainTranslator]: Completed translation [2025-03-17 10:46:05,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:46:05 WrapperNode [2025-03-17 10:46:05,691 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 10:46:05,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 10:46:05,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 10:46:05,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 10:46:05,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:46:05" (1/1) ... [2025-03-17 10:46:05,708 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:46:05" (1/1) ... [2025-03-17 10:46:05,729 INFO L138 Inliner]: procedures = 169, calls = 16, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 114 [2025-03-17 10:46:05,731 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 10:46:05,732 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 10:46:05,732 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 10:46:05,732 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 10:46:05,737 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:46:05" (1/1) ... [2025-03-17 10:46:05,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:46:05" (1/1) ... [2025-03-17 10:46:05,740 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:46:05" (1/1) ... [2025-03-17 10:46:05,743 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:46:05" (1/1) ... [2025-03-17 10:46:05,747 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:46:05" (1/1) ... [2025-03-17 10:46:05,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:46:05" (1/1) ... [2025-03-17 10:46:05,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:46:05" (1/1) ... [2025-03-17 10:46:05,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:46:05" (1/1) ... [2025-03-17 10:46:05,753 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 10:46:05,754 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 10:46:05,754 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 10:46:05,754 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 10:46:05,755 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:46:05" (1/1) ... [2025-03-17 10:46:05,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 10:46:05,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 10:46:05,778 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 10:46:05,781 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 10:46:05,798 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-03-17 10:46:05,798 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-03-17 10:46:05,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 10:46:05,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 10:46:05,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 10:46:05,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 10:46:05,799 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 10:46:05,881 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 10:46:05,882 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 10:46:06,083 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 10:46:06,083 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 10:46:06,177 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 10:46:06,177 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 10:46:06,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 10:46:06 BoogieIcfgContainer [2025-03-17 10:46:06,178 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 10:46:06,180 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 10:46:06,180 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 10:46:06,184 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 10:46:06,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 10:46:05" (1/3) ... [2025-03-17 10:46:06,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e0415a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 10:46:06, skipping insertion in model container [2025-03-17 10:46:06,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:46:05" (2/3) ... [2025-03-17 10:46:06,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e0415a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 10:46:06, skipping insertion in model container [2025-03-17 10:46:06,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 10:46:06" (3/3) ... [2025-03-17 10:46:06,186 INFO L128 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf-b.i [2025-03-17 10:46:06,200 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 10:46:06,202 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 40_barrier_vf-b.i that has 2 procedures, 88 locations, 1 initial locations, 1 loop locations, and 15 error locations. [2025-03-17 10:46:06,203 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 10:46:06,249 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:46:06,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 92 transitions, 188 flow [2025-03-17 10:46:06,309 INFO L124 PetriNetUnfolderBase]: 4/99 cut-off events. [2025-03-17 10:46:06,314 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:46:06,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 99 events. 4/99 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. 0/78 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2025-03-17 10:46:06,319 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 92 transitions, 188 flow [2025-03-17 10:46:06,322 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 92 transitions, 188 flow [2025-03-17 10:46:06,327 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:46:06,336 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;@3e4a40ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:46:06,336 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2025-03-17 10:46:06,341 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:46:06,342 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-03-17 10:46:06,342 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:46:06,342 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:46:06,342 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:46:06,343 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2025-03-17 10:46:06,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:46:06,347 INFO L85 PathProgramCache]: Analyzing trace with hash -756156391, now seen corresponding path program 1 times [2025-03-17 10:46:06,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:46:06,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613058216] [2025-03-17 10:46:06,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:46:06,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:46:06,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 10:46:06,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 10:46:06,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:46:06,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:46:06,464 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 10:46:06,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:46:06,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613058216] [2025-03-17 10:46:06,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613058216] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:46:06,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:46:06,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 10:46:06,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227556361] [2025-03-17 10:46:06,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:46:06,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 10:46:06,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:46:06,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 10:46:06,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 10:46:06,489 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 92 [2025-03-17 10:46:06,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 92 transitions, 188 flow. Second operand has 2 states, 2 states have (on average 74.0) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 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 10:46:06,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:46:06,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 92 [2025-03-17 10:46:06,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:46:06,519 INFO L124 PetriNetUnfolderBase]: 1/75 cut-off events. [2025-03-17 10:46:06,520 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 10:46:06,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 1/75 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 9/75 useless extension candidates. Maximal degree in co-relation 62. Up to 6 conditions per place. [2025-03-17 10:46:06,522 INFO L140 encePairwiseOnDemand]: 79/92 looper letters, 5 selfloop transitions, 0 changer transitions 0/72 dead transitions. [2025-03-17 10:46:06,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 72 transitions, 158 flow [2025-03-17 10:46:06,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 10:46:06,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-17 10:46:06,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 164 transitions. [2025-03-17 10:46:06,531 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8913043478260869 [2025-03-17 10:46:06,532 INFO L175 Difference]: Start difference. First operand has 91 places, 92 transitions, 188 flow. Second operand 2 states and 164 transitions. [2025-03-17 10:46:06,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 72 transitions, 158 flow [2025-03-17 10:46:06,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 72 transitions, 158 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 10:46:06,537 INFO L231 Difference]: Finished difference. Result has 75 places, 72 transitions, 148 flow [2025-03-17 10:46:06,538 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=148, PETRI_PLACES=75, PETRI_TRANSITIONS=72} [2025-03-17 10:46:06,542 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, -16 predicate places. [2025-03-17 10:46:06,542 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 72 transitions, 148 flow [2025-03-17 10:46:06,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 74.0) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 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 10:46:06,543 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:46:06,543 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] [2025-03-17 10:46:06,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 10:46:06,543 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2025-03-17 10:46:06,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:46:06,544 INFO L85 PathProgramCache]: Analyzing trace with hash -816806083, now seen corresponding path program 1 times [2025-03-17 10:46:06,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:46:06,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708272398] [2025-03-17 10:46:06,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:46:06,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:46:06,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 10:46:06,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 10:46:06,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:46:06,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:46:06,618 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 10:46:06,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:46:06,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708272398] [2025-03-17 10:46:06,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708272398] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:46:06,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:46:06,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:46:06,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795114393] [2025-03-17 10:46:06,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:46:06,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:46:06,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:46:06,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:46:06,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:46:06,643 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 92 [2025-03-17 10:46:06,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 72 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 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 10:46:06,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:46:06,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 92 [2025-03-17 10:46:06,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:46:06,674 INFO L124 PetriNetUnfolderBase]: 0/77 cut-off events. [2025-03-17 10:46:06,674 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 10:46:06,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 77 events. 0/77 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2025-03-17 10:46:06,675 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 8 selfloop transitions, 4 changer transitions 0/71 dead transitions. [2025-03-17 10:46:06,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 71 transitions, 170 flow [2025-03-17 10:46:06,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:46:06,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:46:06,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2025-03-17 10:46:06,677 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7572463768115942 [2025-03-17 10:46:06,677 INFO L175 Difference]: Start difference. First operand has 75 places, 72 transitions, 148 flow. Second operand 3 states and 209 transitions. [2025-03-17 10:46:06,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 71 transitions, 170 flow [2025-03-17 10:46:06,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 71 transitions, 170 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 10:46:06,683 INFO L231 Difference]: Finished difference. Result has 75 places, 70 transitions, 152 flow [2025-03-17 10:46:06,683 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=75, PETRI_TRANSITIONS=70} [2025-03-17 10:46:06,684 INFO L279 CegarLoopForPetriNet]: 91 programPoint places, -16 predicate places. [2025-03-17 10:46:06,684 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 70 transitions, 152 flow [2025-03-17 10:46:06,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 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 10:46:06,685 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:46:06,685 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:46:06,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 10:46:06,685 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2025-03-17 10:46:06,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:46:06,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1175132201, now seen corresponding path program 1 times [2025-03-17 10:46:06,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:46:06,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543429150] [2025-03-17 10:46:06,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:46:06,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:46:06,697 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 10:46:06,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 10:46:06,704 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:46:06,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:46:06,704 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 10:46:06,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 10:46:06,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 10:46:06,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:46:06,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:46:06,749 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 10:46:06,750 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 10:46:06,751 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2025-03-17 10:46:06,753 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2025-03-17 10:46:06,754 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2025-03-17 10:46:06,754 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2025-03-17 10:46:06,754 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2025-03-17 10:46:06,754 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2025-03-17 10:46:06,754 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2025-03-17 10:46:06,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2025-03-17 10:46:06,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2025-03-17 10:46:06,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2025-03-17 10:46:06,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 10:46:06,756 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-17 10:46:06,758 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 10:46:06,758 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-17 10:46:06,787 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:46:06,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 162 transitions, 334 flow [2025-03-17 10:46:06,832 INFO L124 PetriNetUnfolderBase]: 8/178 cut-off events. [2025-03-17 10:46:06,836 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-17 10:46:06,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 178 events. 8/178 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 484 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 147. Up to 3 conditions per place. [2025-03-17 10:46:06,839 INFO L82 GeneralOperation]: Start removeDead. Operand has 159 places, 162 transitions, 334 flow [2025-03-17 10:46:06,843 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 162 transitions, 334 flow [2025-03-17 10:46:06,843 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:46:06,844 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;@3e4a40ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:46:06,844 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2025-03-17 10:46:06,848 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:46:06,850 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-03-17 10:46:06,850 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:46:06,850 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:46:06,850 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:46:06,850 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-03-17 10:46:06,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:46:06,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1243696197, now seen corresponding path program 1 times [2025-03-17 10:46:06,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:46:06,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882081375] [2025-03-17 10:46:06,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:46:06,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:46:06,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 10:46:06,869 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 10:46:06,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:46:06,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:46:06,879 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 10:46:06,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:46:06,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882081375] [2025-03-17 10:46:06,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882081375] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:46:06,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:46:06,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 10:46:06,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267190147] [2025-03-17 10:46:06,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:46:06,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 10:46:06,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:46:06,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 10:46:06,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 10:46:06,881 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 162 [2025-03-17 10:46:06,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 162 transitions, 334 flow. Second operand has 2 states, 2 states have (on average 126.0) internal successors, (252), 2 states have internal predecessors, (252), 0 states have call successors, (0), 0 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 10:46:06,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:46:06,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 162 [2025-03-17 10:46:06,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:46:06,935 INFO L124 PetriNetUnfolderBase]: 25/361 cut-off events. [2025-03-17 10:46:06,935 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2025-03-17 10:46:06,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 361 events. 25/361 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1704 event pairs, 14 based on Foata normal form. 63/364 useless extension candidates. Maximal degree in co-relation 324. Up to 50 conditions per place. [2025-03-17 10:46:06,939 INFO L140 encePairwiseOnDemand]: 137/162 looper letters, 10 selfloop transitions, 0 changer transitions 0/126 dead transitions. [2025-03-17 10:46:06,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 126 transitions, 282 flow [2025-03-17 10:46:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 10:46:06,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-17 10:46:06,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 285 transitions. [2025-03-17 10:46:06,945 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8796296296296297 [2025-03-17 10:46:06,945 INFO L175 Difference]: Start difference. First operand has 159 places, 162 transitions, 334 flow. Second operand 2 states and 285 transitions. [2025-03-17 10:46:06,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 126 transitions, 282 flow [2025-03-17 10:46:06,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 126 transitions, 282 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 10:46:06,947 INFO L231 Difference]: Finished difference. Result has 130 places, 126 transitions, 262 flow [2025-03-17 10:46:06,947 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=262, PETRI_PLACES=130, PETRI_TRANSITIONS=126} [2025-03-17 10:46:06,949 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, -29 predicate places. [2025-03-17 10:46:06,950 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 126 transitions, 262 flow [2025-03-17 10:46:06,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 126.0) internal successors, (252), 2 states have internal predecessors, (252), 0 states have call successors, (0), 0 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 10:46:06,950 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:46:06,951 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] [2025-03-17 10:46:06,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 10:46:06,951 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-03-17 10:46:06,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:46:06,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1191116993, now seen corresponding path program 1 times [2025-03-17 10:46:06,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:46:06,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226636433] [2025-03-17 10:46:06,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:46:06,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:46:06,959 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 10:46:06,964 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 10:46:06,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:46:06,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:46:06,992 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 10:46:06,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:46:06,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226636433] [2025-03-17 10:46:06,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226636433] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:46:06,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:46:06,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:46:06,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277033187] [2025-03-17 10:46:06,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:46:06,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:46:06,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:46:06,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:46:06,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:46:07,022 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 162 [2025-03-17 10:46:07,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 126 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 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 10:46:07,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:46:07,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 162 [2025-03-17 10:46:07,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:46:07,176 INFO L124 PetriNetUnfolderBase]: 168/1306 cut-off events. [2025-03-17 10:46:07,176 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2025-03-17 10:46:07,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1724 conditions, 1306 events. 168/1306 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 10220 event pairs, 50 based on Foata normal form. 0/1114 useless extension candidates. Maximal degree in co-relation 1719. Up to 243 conditions per place. [2025-03-17 10:46:07,182 INFO L140 encePairwiseOnDemand]: 146/162 looper letters, 35 selfloop transitions, 12 changer transitions 0/147 dead transitions. [2025-03-17 10:46:07,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 147 transitions, 403 flow [2025-03-17 10:46:07,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:46:07,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:46:07,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2025-03-17 10:46:07,183 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2025-03-17 10:46:07,183 INFO L175 Difference]: Start difference. First operand has 130 places, 126 transitions, 262 flow. Second operand 3 states and 378 transitions. [2025-03-17 10:46:07,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 147 transitions, 403 flow [2025-03-17 10:46:07,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 147 transitions, 403 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 10:46:07,186 INFO L231 Difference]: Finished difference. Result has 134 places, 138 transitions, 366 flow [2025-03-17 10:46:07,186 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=366, PETRI_PLACES=134, PETRI_TRANSITIONS=138} [2025-03-17 10:46:07,187 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, -25 predicate places. [2025-03-17 10:46:07,187 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 138 transitions, 366 flow [2025-03-17 10:46:07,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 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 10:46:07,187 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:46:07,187 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:46:07,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 10:46:07,188 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-03-17 10:46:07,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:46:07,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1796155458, now seen corresponding path program 1 times [2025-03-17 10:46:07,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:46:07,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227274446] [2025-03-17 10:46:07,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:46:07,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:46:07,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-17 10:46:07,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-17 10:46:07,196 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:46:07,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:46:07,220 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 10:46:07,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:46:07,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227274446] [2025-03-17 10:46:07,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227274446] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:46:07,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:46:07,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:46:07,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054109016] [2025-03-17 10:46:07,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:46:07,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:46:07,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:46:07,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:46:07,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:46:07,255 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 162 [2025-03-17 10:46:07,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 138 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 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 10:46:07,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:46:07,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 162 [2025-03-17 10:46:07,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:46:07,422 INFO L124 PetriNetUnfolderBase]: 239/1685 cut-off events. [2025-03-17 10:46:07,423 INFO L125 PetriNetUnfolderBase]: For 372/393 co-relation queries the response was YES. [2025-03-17 10:46:07,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2590 conditions, 1685 events. 239/1685 cut-off events. For 372/393 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 14042 event pairs, 111 based on Foata normal form. 3/1448 useless extension candidates. Maximal degree in co-relation 2583. Up to 431 conditions per place. [2025-03-17 10:46:07,431 INFO L140 encePairwiseOnDemand]: 154/162 looper letters, 35 selfloop transitions, 10 changer transitions 0/151 dead transitions. [2025-03-17 10:46:07,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 151 transitions, 507 flow [2025-03-17 10:46:07,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:46:07,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:46:07,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2025-03-17 10:46:07,433 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7592592592592593 [2025-03-17 10:46:07,433 INFO L175 Difference]: Start difference. First operand has 134 places, 138 transitions, 366 flow. Second operand 3 states and 369 transitions. [2025-03-17 10:46:07,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 151 transitions, 507 flow [2025-03-17 10:46:07,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 151 transitions, 475 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:46:07,437 INFO L231 Difference]: Finished difference. Result has 136 places, 146 transitions, 428 flow [2025-03-17 10:46:07,437 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=428, PETRI_PLACES=136, PETRI_TRANSITIONS=146} [2025-03-17 10:46:07,438 INFO L279 CegarLoopForPetriNet]: 159 programPoint places, -23 predicate places. [2025-03-17 10:46:07,438 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 146 transitions, 428 flow [2025-03-17 10:46:07,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 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 10:46:07,438 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:46:07,438 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] [2025-03-17 10:46:07,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 10:46:07,438 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-03-17 10:46:07,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:46:07,439 INFO L85 PathProgramCache]: Analyzing trace with hash -221571923, now seen corresponding path program 1 times [2025-03-17 10:46:07,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:46:07,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919803851] [2025-03-17 10:46:07,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:46:07,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:46:07,444 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-17 10:46:07,446 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-17 10:46:07,447 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:46:07,447 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:46:07,447 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 10:46:07,449 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-17 10:46:07,451 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-17 10:46:07,451 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:46:07,451 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:46:07,454 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 10:46:07,454 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 10:46:07,454 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2025-03-17 10:46:07,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2025-03-17 10:46:07,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2025-03-17 10:46:07,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2025-03-17 10:46:07,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2025-03-17 10:46:07,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2025-03-17 10:46:07,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2025-03-17 10:46:07,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2025-03-17 10:46:07,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2025-03-17 10:46:07,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2025-03-17 10:46:07,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2025-03-17 10:46:07,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2025-03-17 10:46:07,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2025-03-17 10:46:07,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2025-03-17 10:46:07,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2025-03-17 10:46:07,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 10:46:07,456 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-17 10:46:07,457 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 10:46:07,457 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-03-17 10:46:07,500 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:46:07,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 227 places, 232 transitions, 482 flow [2025-03-17 10:46:07,521 INFO L124 PetriNetUnfolderBase]: 12/257 cut-off events. [2025-03-17 10:46:07,522 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-17 10:46:07,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 257 events. 12/257 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 937 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 216. Up to 4 conditions per place. [2025-03-17 10:46:07,524 INFO L82 GeneralOperation]: Start removeDead. Operand has 227 places, 232 transitions, 482 flow [2025-03-17 10:46:07,526 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 227 places, 232 transitions, 482 flow [2025-03-17 10:46:07,527 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:46:07,527 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;@3e4a40ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:46:07,527 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2025-03-17 10:46:07,528 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:46:07,529 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-03-17 10:46:07,529 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:46:07,529 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:46:07,529 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:46:07,529 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-03-17 10:46:07,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:46:07,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1609739582, now seen corresponding path program 1 times [2025-03-17 10:46:07,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:46:07,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130867124] [2025-03-17 10:46:07,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:46:07,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:46:07,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 10:46:07,534 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 10:46:07,534 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:46:07,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:46:07,539 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 10:46:07,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:46:07,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130867124] [2025-03-17 10:46:07,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130867124] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:46:07,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:46:07,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 10:46:07,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948770476] [2025-03-17 10:46:07,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:46:07,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 10:46:07,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:46:07,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 10:46:07,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 10:46:07,542 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 232 [2025-03-17 10:46:07,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 232 transitions, 482 flow. Second operand has 2 states, 2 states have (on average 178.0) internal successors, (356), 2 states have internal predecessors, (356), 0 states have call successors, (0), 0 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 10:46:07,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:46:07,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 232 [2025-03-17 10:46:07,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:46:07,731 INFO L124 PetriNetUnfolderBase]: 250/1730 cut-off events. [2025-03-17 10:46:07,732 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2025-03-17 10:46:07,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2206 conditions, 1730 events. 250/1730 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 14047 event pairs, 161 based on Foata normal form. 417/1849 useless extension candidates. Maximal degree in co-relation 1661. Up to 378 conditions per place. [2025-03-17 10:46:07,743 INFO L140 encePairwiseOnDemand]: 195/232 looper letters, 15 selfloop transitions, 0 changer transitions 0/180 dead transitions. [2025-03-17 10:46:07,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 180 transitions, 408 flow [2025-03-17 10:46:07,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 10:46:07,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-17 10:46:07,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 406 transitions. [2025-03-17 10:46:07,745 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.875 [2025-03-17 10:46:07,745 INFO L175 Difference]: Start difference. First operand has 227 places, 232 transitions, 482 flow. Second operand 2 states and 406 transitions. [2025-03-17 10:46:07,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 180 transitions, 408 flow [2025-03-17 10:46:07,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 180 transitions, 406 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-03-17 10:46:07,748 INFO L231 Difference]: Finished difference. Result has 185 places, 180 transitions, 376 flow [2025-03-17 10:46:07,748 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=376, PETRI_PLACES=185, PETRI_TRANSITIONS=180} [2025-03-17 10:46:07,749 INFO L279 CegarLoopForPetriNet]: 227 programPoint places, -42 predicate places. [2025-03-17 10:46:07,749 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 180 transitions, 376 flow [2025-03-17 10:46:07,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 178.0) internal successors, (356), 2 states have internal predecessors, (356), 0 states have call successors, (0), 0 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 10:46:07,749 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:46:07,749 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] [2025-03-17 10:46:07,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 10:46:07,749 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-03-17 10:46:07,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:46:07,750 INFO L85 PathProgramCache]: Analyzing trace with hash 771539202, now seen corresponding path program 1 times [2025-03-17 10:46:07,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:46:07,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417563610] [2025-03-17 10:46:07,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:46:07,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:46:07,754 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 10:46:07,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 10:46:07,756 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:46:07,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:46:07,771 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 10:46:07,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:46:07,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417563610] [2025-03-17 10:46:07,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417563610] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:46:07,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:46:07,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:46:07,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734622331] [2025-03-17 10:46:07,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:46:07,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:46:07,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:46:07,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:46:07,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:46:07,816 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 232 [2025-03-17 10:46:07,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 180 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 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 10:46:07,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:46:07,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 232 [2025-03-17 10:46:07,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:46:09,638 INFO L124 PetriNetUnfolderBase]: 5416/22712 cut-off events. [2025-03-17 10:46:09,638 INFO L125 PetriNetUnfolderBase]: For 646/646 co-relation queries the response was YES. [2025-03-17 10:46:09,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31979 conditions, 22712 events. 5416/22712 cut-off events. For 646/646 co-relation queries the response was YES. Maximal size of possible extension queue 659. Compared 295947 event pairs, 1708 based on Foata normal form. 0/19206 useless extension candidates. Maximal degree in co-relation 31973. Up to 5479 conditions per place. [2025-03-17 10:46:09,772 INFO L140 encePairwiseOnDemand]: 208/232 looper letters, 53 selfloop transitions, 18 changer transitions 0/212 dead transitions. [2025-03-17 10:46:09,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 212 transitions, 592 flow [2025-03-17 10:46:09,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:46:09,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:46:09,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 536 transitions. [2025-03-17 10:46:09,775 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7701149425287356 [2025-03-17 10:46:09,775 INFO L175 Difference]: Start difference. First operand has 185 places, 180 transitions, 376 flow. Second operand 3 states and 536 transitions. [2025-03-17 10:46:09,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 212 transitions, 592 flow [2025-03-17 10:46:09,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 212 transitions, 592 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 10:46:09,778 INFO L231 Difference]: Finished difference. Result has 189 places, 198 transitions, 532 flow [2025-03-17 10:46:09,778 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=532, PETRI_PLACES=189, PETRI_TRANSITIONS=198} [2025-03-17 10:46:09,779 INFO L279 CegarLoopForPetriNet]: 227 programPoint places, -38 predicate places. [2025-03-17 10:46:09,779 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 198 transitions, 532 flow [2025-03-17 10:46:09,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 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 10:46:09,779 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:46:09,780 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:46:09,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 10:46:09,780 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-03-17 10:46:09,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:46:09,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1239875901, now seen corresponding path program 1 times [2025-03-17 10:46:09,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:46:09,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194749223] [2025-03-17 10:46:09,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:46:09,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:46:09,785 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-17 10:46:09,788 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-17 10:46:09,788 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:46:09,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:46:09,802 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 10:46:09,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:46:09,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194749223] [2025-03-17 10:46:09,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194749223] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:46:09,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:46:09,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:46:09,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686627432] [2025-03-17 10:46:09,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:46:09,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:46:09,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:46:09,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:46:09,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:46:09,846 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 232 [2025-03-17 10:46:09,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 198 transitions, 532 flow. Second operand has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 0 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 10:46:09,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:46:09,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 232 [2025-03-17 10:46:09,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:46:12,081 INFO L124 PetriNetUnfolderBase]: 7453/32783 cut-off events. [2025-03-17 10:46:12,081 INFO L125 PetriNetUnfolderBase]: For 9203/10150 co-relation queries the response was YES. [2025-03-17 10:46:12,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53376 conditions, 32783 events. 7453/32783 cut-off events. For 9203/10150 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 456950 event pairs, 3518 based on Foata normal form. 56/27783 useless extension candidates. Maximal degree in co-relation 53368. Up to 9785 conditions per place. [2025-03-17 10:46:12,289 INFO L140 encePairwiseOnDemand]: 220/232 looper letters, 53 selfloop transitions, 20 changer transitions 0/226 dead transitions. [2025-03-17 10:46:12,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 226 transitions, 792 flow [2025-03-17 10:46:12,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:46:12,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:46:12,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 531 transitions. [2025-03-17 10:46:12,291 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7629310344827587 [2025-03-17 10:46:12,291 INFO L175 Difference]: Start difference. First operand has 189 places, 198 transitions, 532 flow. Second operand 3 states and 531 transitions. [2025-03-17 10:46:12,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 226 transitions, 792 flow [2025-03-17 10:46:12,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 226 transitions, 740 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:46:12,306 INFO L231 Difference]: Finished difference. Result has 191 places, 216 transitions, 682 flow [2025-03-17 10:46:12,307 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=682, PETRI_PLACES=191, PETRI_TRANSITIONS=216} [2025-03-17 10:46:12,308 INFO L279 CegarLoopForPetriNet]: 227 programPoint places, -36 predicate places. [2025-03-17 10:46:12,308 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 216 transitions, 682 flow [2025-03-17 10:46:12,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 0 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 10:46:12,309 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:46:12,309 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] [2025-03-17 10:46:12,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 10:46:12,309 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-03-17 10:46:12,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:46:12,310 INFO L85 PathProgramCache]: Analyzing trace with hash -110590348, now seen corresponding path program 1 times [2025-03-17 10:46:12,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:46:12,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866121645] [2025-03-17 10:46:12,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:46:12,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:46:12,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 10:46:12,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 10:46:12,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:46:12,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:46:12,339 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 10:46:12,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:46:12,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866121645] [2025-03-17 10:46:12,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866121645] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:46:12,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:46:12,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:46:12,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88903685] [2025-03-17 10:46:12,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:46:12,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:46:12,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:46:12,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:46:12,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:46:12,468 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 232 [2025-03-17 10:46:12,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 216 transitions, 682 flow. Second operand has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 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 10:46:12,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:46:12,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 232 [2025-03-17 10:46:12,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:46:15,128 INFO L124 PetriNetUnfolderBase]: 9179/37562 cut-off events. [2025-03-17 10:46:15,129 INFO L125 PetriNetUnfolderBase]: For 15351/16828 co-relation queries the response was YES. [2025-03-17 10:46:15,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65335 conditions, 37562 events. 9179/37562 cut-off events. For 15351/16828 co-relation queries the response was YES. Maximal size of possible extension queue 1111. Compared 527324 event pairs, 3917 based on Foata normal form. 64/31570 useless extension candidates. Maximal degree in co-relation 65326. Up to 11809 conditions per place. [2025-03-17 10:46:15,419 INFO L140 encePairwiseOnDemand]: 220/232 looper letters, 66 selfloop transitions, 28 changer transitions 0/249 dead transitions. [2025-03-17 10:46:15,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 249 transitions, 1033 flow [2025-03-17 10:46:15,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:46:15,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:46:15,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 530 transitions. [2025-03-17 10:46:15,422 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7614942528735632 [2025-03-17 10:46:15,422 INFO L175 Difference]: Start difference. First operand has 191 places, 216 transitions, 682 flow. Second operand 3 states and 530 transitions. [2025-03-17 10:46:15,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 249 transitions, 1033 flow [2025-03-17 10:46:15,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 249 transitions, 977 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:46:15,451 INFO L231 Difference]: Finished difference. Result has 193 places, 240 transitions, 928 flow [2025-03-17 10:46:15,451 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=928, PETRI_PLACES=193, PETRI_TRANSITIONS=240} [2025-03-17 10:46:15,451 INFO L279 CegarLoopForPetriNet]: 227 programPoint places, -34 predicate places. [2025-03-17 10:46:15,451 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 240 transitions, 928 flow [2025-03-17 10:46:15,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 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 10:46:15,453 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:46:15,453 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] [2025-03-17 10:46:15,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 10:46:15,453 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-03-17 10:46:15,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:46:15,453 INFO L85 PathProgramCache]: Analyzing trace with hash -791090226, now seen corresponding path program 1 times [2025-03-17 10:46:15,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:46:15,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319351107] [2025-03-17 10:46:15,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:46:15,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:46:15,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 10:46:15,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 10:46:15,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:46:15,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:46:15,466 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 10:46:15,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 10:46:15,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 10:46:15,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:46:15,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:46:15,474 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 10:46:15,474 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 10:46:15,474 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2025-03-17 10:46:15,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2025-03-17 10:46:15,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2025-03-17 10:46:15,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining) [2025-03-17 10:46:15,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2025-03-17 10:46:15,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2025-03-17 10:46:15,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (54 of 61 remaining) [2025-03-17 10:46:15,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2025-03-17 10:46:15,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2025-03-17 10:46:15,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2025-03-17 10:46:15,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2025-03-17 10:46:15,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2025-03-17 10:46:15,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2025-03-17 10:46:15,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2025-03-17 10:46:15,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2025-03-17 10:46:15,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2025-03-17 10:46:15,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2025-03-17 10:46:15,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2025-03-17 10:46:15,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2025-03-17 10:46:15,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2025-03-17 10:46:15,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2025-03-17 10:46:15,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2025-03-17 10:46:15,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2025-03-17 10:46:15,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining) [2025-03-17 10:46:15,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2025-03-17 10:46:15,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2025-03-17 10:46:15,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining) [2025-03-17 10:46:15,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2025-03-17 10:46:15,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2025-03-17 10:46:15,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2025-03-17 10:46:15,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2025-03-17 10:46:15,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2025-03-17 10:46:15,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2025-03-17 10:46:15,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2025-03-17 10:46:15,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2025-03-17 10:46:15,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining) [2025-03-17 10:46:15,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining) [2025-03-17 10:46:15,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 61 remaining) [2025-03-17 10:46:15,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 61 remaining) [2025-03-17 10:46:15,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2025-03-17 10:46:15,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2025-03-17 10:46:15,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2025-03-17 10:46:15,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2025-03-17 10:46:15,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining) [2025-03-17 10:46:15,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2025-03-17 10:46:15,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2025-03-17 10:46:15,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining) [2025-03-17 10:46:15,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2025-03-17 10:46:15,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2025-03-17 10:46:15,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2025-03-17 10:46:15,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2025-03-17 10:46:15,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2025-03-17 10:46:15,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2025-03-17 10:46:15,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2025-03-17 10:46:15,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2025-03-17 10:46:15,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2025-03-17 10:46:15,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2025-03-17 10:46:15,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2025-03-17 10:46:15,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2025-03-17 10:46:15,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2025-03-17 10:46:15,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2025-03-17 10:46:15,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 10:46:15,479 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-03-17 10:46:15,479 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 10:46:15,479 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-03-17 10:46:15,515 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:46:15,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 302 transitions, 632 flow [2025-03-17 10:46:15,542 INFO L124 PetriNetUnfolderBase]: 16/336 cut-off events. [2025-03-17 10:46:15,542 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-03-17 10:46:15,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 336 events. 16/336 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1368 event pairs, 0 based on Foata normal form. 0/255 useless extension candidates. Maximal degree in co-relation 285. Up to 5 conditions per place. [2025-03-17 10:46:15,545 INFO L82 GeneralOperation]: Start removeDead. Operand has 295 places, 302 transitions, 632 flow [2025-03-17 10:46:15,550 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 295 places, 302 transitions, 632 flow [2025-03-17 10:46:15,550 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:46:15,551 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;@3e4a40ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:46:15,551 INFO L334 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2025-03-17 10:46:15,552 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:46:15,552 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-03-17 10:46:15,552 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:46:15,552 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:46:15,552 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:46:15,552 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2025-03-17 10:46:15,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:46:15,552 INFO L85 PathProgramCache]: Analyzing trace with hash -785646612, now seen corresponding path program 1 times [2025-03-17 10:46:15,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:46:15,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61211208] [2025-03-17 10:46:15,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:46:15,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:46:15,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 10:46:15,557 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 10:46:15,557 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:46:15,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:46:15,566 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 10:46:15,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:46:15,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61211208] [2025-03-17 10:46:15,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61211208] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:46:15,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:46:15,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 10:46:15,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323310335] [2025-03-17 10:46:15,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:46:15,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 10:46:15,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:46:15,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 10:46:15,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 10:46:15,569 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 302 [2025-03-17 10:46:15,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 302 transitions, 632 flow. Second operand has 2 states, 2 states have (on average 230.0) internal successors, (460), 2 states have internal predecessors, (460), 0 states have call successors, (0), 0 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 10:46:15,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:46:15,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 302 [2025-03-17 10:46:15,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:46:16,288 INFO L124 PetriNetUnfolderBase]: 1933/8415 cut-off events. [2025-03-17 10:46:16,288 INFO L125 PetriNetUnfolderBase]: For 1169/1169 co-relation queries the response was YES. [2025-03-17 10:46:16,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11620 conditions, 8415 events. 1933/8415 cut-off events. For 1169/1169 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 92111 event pairs, 1329 based on Foata normal form. 2648/9695 useless extension candidates. Maximal degree in co-relation 8698. Up to 2591 conditions per place. [2025-03-17 10:46:16,374 INFO L140 encePairwiseOnDemand]: 253/302 looper letters, 20 selfloop transitions, 0 changer transitions 0/234 dead transitions. [2025-03-17 10:46:16,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 234 transitions, 536 flow [2025-03-17 10:46:16,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 10:46:16,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-17 10:46:16,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 527 transitions. [2025-03-17 10:46:16,375 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8725165562913907 [2025-03-17 10:46:16,376 INFO L175 Difference]: Start difference. First operand has 295 places, 302 transitions, 632 flow. Second operand 2 states and 527 transitions. [2025-03-17 10:46:16,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 234 transitions, 536 flow [2025-03-17 10:46:16,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 234 transitions, 530 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-03-17 10:46:16,378 INFO L231 Difference]: Finished difference. Result has 240 places, 234 transitions, 490 flow [2025-03-17 10:46:16,379 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=490, PETRI_PLACES=240, PETRI_TRANSITIONS=234} [2025-03-17 10:46:16,379 INFO L279 CegarLoopForPetriNet]: 295 programPoint places, -55 predicate places. [2025-03-17 10:46:16,379 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 234 transitions, 490 flow [2025-03-17 10:46:16,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 230.0) internal successors, (460), 2 states have internal predecessors, (460), 0 states have call successors, (0), 0 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 10:46:16,379 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:46:16,380 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] [2025-03-17 10:46:16,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 10:46:16,380 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2025-03-17 10:46:16,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:46:16,380 INFO L85 PathProgramCache]: Analyzing trace with hash 907889296, now seen corresponding path program 1 times [2025-03-17 10:46:16,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:46:16,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549627549] [2025-03-17 10:46:16,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:46:16,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:46:16,384 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 10:46:16,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 10:46:16,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:46:16,386 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:46:16,397 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 10:46:16,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:46:16,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549627549] [2025-03-17 10:46:16,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549627549] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:46:16,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:46:16,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:46:16,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286770894] [2025-03-17 10:46:16,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:46:16,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:46:16,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:46:16,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:46:16,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:46:16,443 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 302 [2025-03-17 10:46:16,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 234 transitions, 490 flow. Second operand has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 10:46:16,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:46:16,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 302 [2025-03-17 10:46:16,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:46:44,350 INFO L124 PetriNetUnfolderBase]: 120581/364047 cut-off events. [2025-03-17 10:46:44,350 INFO L125 PetriNetUnfolderBase]: For 9823/9823 co-relation queries the response was YES. [2025-03-17 10:46:46,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541232 conditions, 364047 events. 120581/364047 cut-off events. For 9823/9823 co-relation queries the response was YES. Maximal size of possible extension queue 9115. Compared 6092991 event pairs, 41901 based on Foata normal form. 0/306954 useless extension candidates. Maximal degree in co-relation 541225. Up to 103403 conditions per place. [2025-03-17 10:46:48,051 INFO L140 encePairwiseOnDemand]: 270/302 looper letters, 71 selfloop transitions, 24 changer transitions 0/277 dead transitions. [2025-03-17 10:46:48,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 277 transitions, 781 flow [2025-03-17 10:46:48,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:46:48,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:46:48,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2025-03-17 10:46:48,053 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7660044150110376 [2025-03-17 10:46:48,053 INFO L175 Difference]: Start difference. First operand has 240 places, 234 transitions, 490 flow. Second operand 3 states and 694 transitions. [2025-03-17 10:46:48,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 277 transitions, 781 flow [2025-03-17 10:46:48,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 277 transitions, 781 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 10:46:48,062 INFO L231 Difference]: Finished difference. Result has 244 places, 258 transitions, 698 flow [2025-03-17 10:46:48,063 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=698, PETRI_PLACES=244, PETRI_TRANSITIONS=258} [2025-03-17 10:46:48,063 INFO L279 CegarLoopForPetriNet]: 295 programPoint places, -51 predicate places. [2025-03-17 10:46:48,063 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 258 transitions, 698 flow [2025-03-17 10:46:48,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 10:46:48,063 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:46:48,064 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:46:48,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 10:46:48,064 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2025-03-17 10:46:48,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:46:48,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1856990552, now seen corresponding path program 1 times [2025-03-17 10:46:48,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:46:48,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643880518] [2025-03-17 10:46:48,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:46:48,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:46:48,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-17 10:46:48,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-17 10:46:48,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:46:48,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:46:48,095 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 10:46:48,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:46:48,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643880518] [2025-03-17 10:46:48,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643880518] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:46:48,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:46:48,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:46:48,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938170940] [2025-03-17 10:46:48,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:46:48,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:46:48,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:46:48,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:46:48,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:46:48,179 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 302 [2025-03-17 10:46:48,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 258 transitions, 698 flow. Second operand has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 0 states have call successors, (0), 0 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 10:46:48,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:46:48,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 302 [2025-03-17 10:46:48,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand