./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 735b3cc8 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/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-?-735b3cc-m [2025-03-14 01:19:46,164 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 01:19:46,220 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-14 01:19:46,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 01:19:46,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 01:19:46,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 01:19:46,249 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 01:19:46,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 01:19:46,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 01:19:46,249 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 01:19:46,249 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 01:19:46,250 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 01:19:46,250 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 01:19:46,251 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 01:19:46,251 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 01:19:46,251 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 01:19:46,251 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 01:19:46,251 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 01:19:46,252 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 01:19:46,252 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 01:19:46,252 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 01:19:46,252 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 01:19:46,252 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-14 01:19:46,252 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-14 01:19:46,252 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 01:19:46,252 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 01:19:46,252 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 01:19:46,252 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 01:19:46,252 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 01:19:46,252 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 01:19:46,253 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 01:19:46,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:19:46,253 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 01:19:46,253 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 01:19:46,253 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 01:19:46,253 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 01:19:46,253 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 01:19:46,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 01:19:46,253 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 01:19:46,253 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 01:19:46,253 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 01:19:46,253 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 01:19:46,253 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 [2025-03-14 01:19:46,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 01:19:46,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 01:19:46,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 01:19:46,497 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 01:19:46,497 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 01:19:46,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i [2025-03-14 01:19:47,723 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8a7562d0/287052a153aa482bb9780bc99f72b146/FLAG9bb08b0a7 [2025-03-14 01:19:48,011 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 01:19:48,015 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i [2025-03-14 01:19:48,028 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8a7562d0/287052a153aa482bb9780bc99f72b146/FLAG9bb08b0a7 [2025-03-14 01:19:48,044 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8a7562d0/287052a153aa482bb9780bc99f72b146 [2025-03-14 01:19:48,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 01:19:48,048 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 01:19:48,049 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 01:19:48,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 01:19:48,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 01:19:48,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:19:48" (1/1) ... [2025-03-14 01:19:48,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60592373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:19:48, skipping insertion in model container [2025-03-14 01:19:48,055 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:19:48" (1/1) ... [2025-03-14 01:19:48,098 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 01:19:48,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:19:48,310 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 01:19:48,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:19:48,367 INFO L204 MainTranslator]: Completed translation [2025-03-14 01:19:48,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:19:48 WrapperNode [2025-03-14 01:19:48,368 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 01:19:48,369 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 01:19:48,369 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 01:19:48,369 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 01:19:48,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:19:48" (1/1) ... [2025-03-14 01:19:48,386 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:19:48" (1/1) ... [2025-03-14 01:19:48,405 INFO L138 Inliner]: procedures = 169, calls = 16, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 114 [2025-03-14 01:19:48,406 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 01:19:48,406 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 01:19:48,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 01:19:48,406 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 01:19:48,412 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:19:48" (1/1) ... [2025-03-14 01:19:48,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:19:48" (1/1) ... [2025-03-14 01:19:48,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:19:48" (1/1) ... [2025-03-14 01:19:48,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:19:48" (1/1) ... [2025-03-14 01:19:48,423 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:19:48" (1/1) ... [2025-03-14 01:19:48,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:19:48" (1/1) ... [2025-03-14 01:19:48,429 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:19:48" (1/1) ... [2025-03-14 01:19:48,430 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:19:48" (1/1) ... [2025-03-14 01:19:48,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 01:19:48,433 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 01:19:48,433 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 01:19:48,433 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 01:19:48,434 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:19:48" (1/1) ... [2025-03-14 01:19:48,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:19:48,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:19:48,463 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-14 01:19:48,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-14 01:19:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-03-14 01:19:48,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-03-14 01:19:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 01:19:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-14 01:19:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 01:19:48,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 01:19:48,488 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 01:19:48,583 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 01:19:48,586 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 01:19:48,781 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 01:19:48,782 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 01:19:48,782 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 01:19:48,871 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 01:19:48,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:19:48 BoogieIcfgContainer [2025-03-14 01:19:48,871 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 01:19:48,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 01:19:48,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 01:19:48,877 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 01:19:48,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 01:19:48" (1/3) ... [2025-03-14 01:19:48,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cbbc98c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:19:48, skipping insertion in model container [2025-03-14 01:19:48,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:19:48" (2/3) ... [2025-03-14 01:19:48,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cbbc98c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:19:48, skipping insertion in model container [2025-03-14 01:19:48,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:19:48" (3/3) ... [2025-03-14 01:19:48,880 INFO L128 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf-b.i [2025-03-14 01:19:48,891 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 01:19:48,893 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 40_barrier_vf-b.i that has 2 procedures, 89 locations, 1 initial locations, 1 loop locations, and 15 error locations. [2025-03-14 01:19:48,894 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 01:19:48,940 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 01:19:48,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 93 transitions, 190 flow [2025-03-14 01:19:49,008 INFO L124 PetriNetUnfolderBase]: 4/100 cut-off events. [2025-03-14 01:19:49,009 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:19:49,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 100 events. 4/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2025-03-14 01:19:49,014 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 93 transitions, 190 flow [2025-03-14 01:19:49,017 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 93 transitions, 190 flow [2025-03-14 01:19:49,023 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:19:49,036 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;@4729639b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:19:49,037 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2025-03-14 01:19:49,045 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:19:49,045 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-03-14 01:19:49,045 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:19:49,045 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:19:49,045 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:19:49,046 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2025-03-14 01:19:49,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:19:49,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1543267368, now seen corresponding path program 1 times [2025-03-14 01:19:49,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:19:49,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022031611] [2025-03-14 01:19:49,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:19:49,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:19:49,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-14 01:19:49,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-14 01:19:49,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:19:49,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:19:49,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:19:49,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:19:49,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022031611] [2025-03-14 01:19:49,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022031611] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:19:49,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:19:49,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-14 01:19:49,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310644518] [2025-03-14 01:19:49,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:19:49,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-14 01:19:49,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:19:49,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-14 01:19:49,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-14 01:19:49,201 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 93 [2025-03-14 01:19:49,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 93 transitions, 190 flow. Second operand has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:49,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:19:49,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 93 [2025-03-14 01:19:49,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:19:49,248 INFO L124 PetriNetUnfolderBase]: 1/76 cut-off events. [2025-03-14 01:19:49,249 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:19:49,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 1/76 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 9/76 useless extension candidates. Maximal degree in co-relation 63. Up to 6 conditions per place. [2025-03-14 01:19:49,250 INFO L140 encePairwiseOnDemand]: 80/93 looper letters, 5 selfloop transitions, 0 changer transitions 0/73 dead transitions. [2025-03-14 01:19:49,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 73 transitions, 160 flow [2025-03-14 01:19:49,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-14 01:19:49,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-14 01:19:49,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 166 transitions. [2025-03-14 01:19:49,261 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8924731182795699 [2025-03-14 01:19:49,262 INFO L175 Difference]: Start difference. First operand has 92 places, 93 transitions, 190 flow. Second operand 2 states and 166 transitions. [2025-03-14 01:19:49,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 73 transitions, 160 flow [2025-03-14 01:19:49,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 73 transitions, 160 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:19:49,269 INFO L231 Difference]: Finished difference. Result has 76 places, 73 transitions, 150 flow [2025-03-14 01:19:49,271 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=150, PETRI_PLACES=76, PETRI_TRANSITIONS=73} [2025-03-14 01:19:49,275 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, -16 predicate places. [2025-03-14 01:19:49,275 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 73 transitions, 150 flow [2025-03-14 01:19:49,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:49,275 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:19:49,275 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] [2025-03-14 01:19:49,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 01:19:49,275 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2025-03-14 01:19:49,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:19:49,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1316236204, now seen corresponding path program 1 times [2025-03-14 01:19:49,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:19:49,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10728029] [2025-03-14 01:19:49,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:19:49,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:19:49,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-14 01:19:49,301 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-14 01:19:49,301 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:19:49,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:19:49,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:19:49,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:19:49,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10728029] [2025-03-14 01:19:49,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10728029] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:19:49,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:19:49,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:19:49,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254620145] [2025-03-14 01:19:49,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:19:49,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:19:49,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:19:49,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:19:49,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:19:49,365 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 93 [2025-03-14 01:19:49,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 73 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:49,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:19:49,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 93 [2025-03-14 01:19:49,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:19:49,396 INFO L124 PetriNetUnfolderBase]: 0/79 cut-off events. [2025-03-14 01:19:49,397 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:19:49,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 79 events. 0/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2025-03-14 01:19:49,397 INFO L140 encePairwiseOnDemand]: 87/93 looper letters, 8 selfloop transitions, 4 changer transitions 0/72 dead transitions. [2025-03-14 01:19:49,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 72 transitions, 172 flow [2025-03-14 01:19:49,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:19:49,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:19:49,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 212 transitions. [2025-03-14 01:19:49,400 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7598566308243727 [2025-03-14 01:19:49,401 INFO L175 Difference]: Start difference. First operand has 76 places, 73 transitions, 150 flow. Second operand 3 states and 212 transitions. [2025-03-14 01:19:49,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 72 transitions, 172 flow [2025-03-14 01:19:49,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 72 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:19:49,403 INFO L231 Difference]: Finished difference. Result has 76 places, 71 transitions, 154 flow [2025-03-14 01:19:49,403 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=76, PETRI_TRANSITIONS=71} [2025-03-14 01:19:49,404 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, -16 predicate places. [2025-03-14 01:19:49,404 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 71 transitions, 154 flow [2025-03-14 01:19:49,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:49,405 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:19:49,405 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:19:49,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 01:19:49,405 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)] === [2025-03-14 01:19:49,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:19:49,407 INFO L85 PathProgramCache]: Analyzing trace with hash 670683691, now seen corresponding path program 1 times [2025-03-14 01:19:49,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:19:49,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722466656] [2025-03-14 01:19:49,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:19:49,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:19:49,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-14 01:19:49,422 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-14 01:19:49,422 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:19:49,422 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:19:49,422 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-14 01:19:49,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-14 01:19:49,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-14 01:19:49,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:19:49,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:19:49,449 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-14 01:19:49,449 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-14 01:19:49,450 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2025-03-14 01:19:49,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2025-03-14 01:19:49,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2025-03-14 01:19:49,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2025-03-14 01:19:49,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2025-03-14 01:19:49,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2025-03-14 01:19:49,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2025-03-14 01:19:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2025-03-14 01:19:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2025-03-14 01:19:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2025-03-14 01:19:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2025-03-14 01:19:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2025-03-14 01:19:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2025-03-14 01:19:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2025-03-14 01:19:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2025-03-14 01:19:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2025-03-14 01:19:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2025-03-14 01:19:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2025-03-14 01:19:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2025-03-14 01:19:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2025-03-14 01:19:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2025-03-14 01:19:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2025-03-14 01:19:49,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2025-03-14 01:19:49,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2025-03-14 01:19:49,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2025-03-14 01:19:49,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2025-03-14 01:19:49,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2025-03-14 01:19:49,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2025-03-14 01:19:49,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2025-03-14 01:19:49,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2025-03-14 01:19:49,454 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2025-03-14 01:19:49,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 01:19:49,454 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-14 01:19:49,456 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-14 01:19:49,456 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-14 01:19:49,481 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 01:19:49,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 164 transitions, 338 flow [2025-03-14 01:19:49,511 INFO L124 PetriNetUnfolderBase]: 8/180 cut-off events. [2025-03-14 01:19:49,512 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-14 01:19:49,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 180 events. 8/180 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 496 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 149. Up to 3 conditions per place. [2025-03-14 01:19:49,513 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 164 transitions, 338 flow [2025-03-14 01:19:49,515 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 164 transitions, 338 flow [2025-03-14 01:19:49,516 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:19:49,516 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;@4729639b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:19:49,516 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2025-03-14 01:19:49,520 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:19:49,520 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-03-14 01:19:49,520 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:19:49,520 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:19:49,520 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:19:49,520 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-03-14 01:19:49,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:19:49,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1548476980, now seen corresponding path program 1 times [2025-03-14 01:19:49,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:19:49,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280690240] [2025-03-14 01:19:49,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:19:49,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:19:49,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-14 01:19:49,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-14 01:19:49,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:19:49,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:19:49,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:19:49,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:19:49,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280690240] [2025-03-14 01:19:49,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280690240] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:19:49,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:19:49,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-14 01:19:49,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533280336] [2025-03-14 01:19:49,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:19:49,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-14 01:19:49,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:19:49,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-14 01:19:49,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-14 01:19:49,546 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2025-03-14 01:19:49,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 164 transitions, 338 flow. Second operand has 2 states, 2 states have (on average 128.0) internal successors, (256), 2 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:49,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:19:49,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2025-03-14 01:19:49,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:19:49,632 INFO L124 PetriNetUnfolderBase]: 25/367 cut-off events. [2025-03-14 01:19:49,632 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2025-03-14 01:19:49,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 367 events. 25/367 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1753 event pairs, 14 based on Foata normal form. 62/369 useless extension candidates. Maximal degree in co-relation 329. Up to 50 conditions per place. [2025-03-14 01:19:49,636 INFO L140 encePairwiseOnDemand]: 139/164 looper letters, 10 selfloop transitions, 0 changer transitions 0/128 dead transitions. [2025-03-14 01:19:49,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 128 transitions, 286 flow [2025-03-14 01:19:49,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-14 01:19:49,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-14 01:19:49,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 289 transitions. [2025-03-14 01:19:49,639 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8810975609756098 [2025-03-14 01:19:49,639 INFO L175 Difference]: Start difference. First operand has 161 places, 164 transitions, 338 flow. Second operand 2 states and 289 transitions. [2025-03-14 01:19:49,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 128 transitions, 286 flow [2025-03-14 01:19:49,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 128 transitions, 286 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:19:49,641 INFO L231 Difference]: Finished difference. Result has 132 places, 128 transitions, 266 flow [2025-03-14 01:19:49,643 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=266, PETRI_PLACES=132, PETRI_TRANSITIONS=128} [2025-03-14 01:19:49,644 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, -29 predicate places. [2025-03-14 01:19:49,644 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 128 transitions, 266 flow [2025-03-14 01:19:49,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 128.0) internal successors, (256), 2 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:49,645 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:19:49,645 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] [2025-03-14 01:19:49,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 01:19:49,645 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-03-14 01:19:49,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:19:49,645 INFO L85 PathProgramCache]: Analyzing trace with hash -2027673200, now seen corresponding path program 1 times [2025-03-14 01:19:49,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:19:49,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481016087] [2025-03-14 01:19:49,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:19:49,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:19:49,657 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-14 01:19:49,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-14 01:19:49,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:19:49,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:19:49,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:19:49,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:19:49,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481016087] [2025-03-14 01:19:49,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481016087] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:19:49,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:19:49,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:19:49,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596458626] [2025-03-14 01:19:49,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:19:49,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:19:49,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:19:49,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:19:49,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:19:49,737 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 164 [2025-03-14 01:19:49,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 128 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:49,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:19:49,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 164 [2025-03-14 01:19:49,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:19:49,874 INFO L124 PetriNetUnfolderBase]: 168/1333 cut-off events. [2025-03-14 01:19:49,874 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2025-03-14 01:19:49,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1751 conditions, 1333 events. 168/1333 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 10436 event pairs, 47 based on Foata normal form. 0/1144 useless extension candidates. Maximal degree in co-relation 1746. Up to 243 conditions per place. [2025-03-14 01:19:49,881 INFO L140 encePairwiseOnDemand]: 148/164 looper letters, 35 selfloop transitions, 12 changer transitions 0/149 dead transitions. [2025-03-14 01:19:49,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 149 transitions, 407 flow [2025-03-14 01:19:49,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:19:49,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:19:49,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2025-03-14 01:19:49,883 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7804878048780488 [2025-03-14 01:19:49,883 INFO L175 Difference]: Start difference. First operand has 132 places, 128 transitions, 266 flow. Second operand 3 states and 384 transitions. [2025-03-14 01:19:49,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 149 transitions, 407 flow [2025-03-14 01:19:49,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 149 transitions, 407 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:19:49,886 INFO L231 Difference]: Finished difference. Result has 136 places, 140 transitions, 370 flow [2025-03-14 01:19:49,886 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=370, PETRI_PLACES=136, PETRI_TRANSITIONS=140} [2025-03-14 01:19:49,887 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, -25 predicate places. [2025-03-14 01:19:49,887 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 140 transitions, 370 flow [2025-03-14 01:19:49,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:49,887 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:19:49,887 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] [2025-03-14 01:19:49,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-14 01:19:49,889 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-03-14 01:19:49,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:19:49,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1521137425, now seen corresponding path program 1 times [2025-03-14 01:19:49,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:19:49,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885240695] [2025-03-14 01:19:49,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:19:49,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:19:49,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-14 01:19:49,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-14 01:19:49,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:19:49,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:19:49,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:19:49,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:19:49,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885240695] [2025-03-14 01:19:49,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885240695] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:19:49,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:19:49,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:19:49,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392153929] [2025-03-14 01:19:49,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:19:49,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:19:49,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:19:49,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:19:49,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:19:49,971 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 164 [2025-03-14 01:19:49,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 140 transitions, 370 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:49,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:19:49,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 164 [2025-03-14 01:19:49,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:19:50,131 INFO L124 PetriNetUnfolderBase]: 239/1731 cut-off events. [2025-03-14 01:19:50,131 INFO L125 PetriNetUnfolderBase]: For 372/393 co-relation queries the response was YES. [2025-03-14 01:19:50,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2636 conditions, 1731 events. 239/1731 cut-off events. For 372/393 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 14557 event pairs, 111 based on Foata normal form. 3/1494 useless extension candidates. Maximal degree in co-relation 2629. Up to 431 conditions per place. [2025-03-14 01:19:50,143 INFO L140 encePairwiseOnDemand]: 156/164 looper letters, 35 selfloop transitions, 10 changer transitions 0/153 dead transitions. [2025-03-14 01:19:50,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 153 transitions, 511 flow [2025-03-14 01:19:50,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:19:50,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:19:50,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2025-03-14 01:19:50,145 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7621951219512195 [2025-03-14 01:19:50,145 INFO L175 Difference]: Start difference. First operand has 136 places, 140 transitions, 370 flow. Second operand 3 states and 375 transitions. [2025-03-14 01:19:50,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 153 transitions, 511 flow [2025-03-14 01:19:50,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 153 transitions, 479 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:19:50,152 INFO L231 Difference]: Finished difference. Result has 138 places, 148 transitions, 432 flow [2025-03-14 01:19:50,152 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=432, PETRI_PLACES=138, PETRI_TRANSITIONS=148} [2025-03-14 01:19:50,154 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, -23 predicate places. [2025-03-14 01:19:50,154 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 148 transitions, 432 flow [2025-03-14 01:19:50,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:50,154 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:19:50,154 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] [2025-03-14 01:19:50,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-14 01:19:50,155 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)] === [2025-03-14 01:19:50,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:19:50,155 INFO L85 PathProgramCache]: Analyzing trace with hash 275377798, now seen corresponding path program 1 times [2025-03-14 01:19:50,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:19:50,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109801350] [2025-03-14 01:19:50,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:19:50,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:19:50,161 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-14 01:19:50,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-14 01:19:50,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:19:50,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:19:50,169 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-14 01:19:50,174 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-14 01:19:50,180 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-14 01:19:50,180 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:19:50,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:19:50,185 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-14 01:19:50,186 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-14 01:19:50,186 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2025-03-14 01:19:50,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2025-03-14 01:19:50,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2025-03-14 01:19:50,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2025-03-14 01:19:50,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2025-03-14 01:19:50,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2025-03-14 01:19:50,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2025-03-14 01:19:50,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2025-03-14 01:19:50,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2025-03-14 01:19:50,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2025-03-14 01:19:50,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2025-03-14 01:19:50,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2025-03-14 01:19:50,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2025-03-14 01:19:50,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2025-03-14 01:19:50,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2025-03-14 01:19:50,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2025-03-14 01:19:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2025-03-14 01:19:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2025-03-14 01:19:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2025-03-14 01:19:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2025-03-14 01:19:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2025-03-14 01:19:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2025-03-14 01:19:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2025-03-14 01:19:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2025-03-14 01:19:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2025-03-14 01:19:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2025-03-14 01:19:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2025-03-14 01:19:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2025-03-14 01:19:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2025-03-14 01:19:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2025-03-14 01:19:50,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2025-03-14 01:19:50,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2025-03-14 01:19:50,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2025-03-14 01:19:50,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2025-03-14 01:19:50,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2025-03-14 01:19:50,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2025-03-14 01:19:50,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2025-03-14 01:19:50,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2025-03-14 01:19:50,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2025-03-14 01:19:50,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2025-03-14 01:19:50,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2025-03-14 01:19:50,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2025-03-14 01:19:50,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2025-03-14 01:19:50,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2025-03-14 01:19:50,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2025-03-14 01:19:50,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2025-03-14 01:19:50,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-14 01:19:50,189 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-14 01:19:50,190 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-14 01:19:50,190 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-03-14 01:19:50,226 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 01:19:50,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 230 places, 235 transitions, 488 flow [2025-03-14 01:19:50,258 INFO L124 PetriNetUnfolderBase]: 12/260 cut-off events. [2025-03-14 01:19:50,259 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-14 01:19:50,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 260 events. 12/260 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 951 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 219. Up to 4 conditions per place. [2025-03-14 01:19:50,261 INFO L82 GeneralOperation]: Start removeDead. Operand has 230 places, 235 transitions, 488 flow [2025-03-14 01:19:50,263 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 230 places, 235 transitions, 488 flow [2025-03-14 01:19:50,264 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:19:50,264 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;@4729639b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:19:50,264 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2025-03-14 01:19:50,266 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:19:50,266 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-03-14 01:19:50,266 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:19:50,266 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:19:50,266 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:19:50,266 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-03-14 01:19:50,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:19:50,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1693602897, now seen corresponding path program 1 times [2025-03-14 01:19:50,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:19:50,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564240806] [2025-03-14 01:19:50,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:19:50,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:19:50,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-14 01:19:50,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-14 01:19:50,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:19:50,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:19:50,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:19:50,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:19:50,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564240806] [2025-03-14 01:19:50,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564240806] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:19:50,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:19:50,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-14 01:19:50,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259358607] [2025-03-14 01:19:50,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:19:50,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-14 01:19:50,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:19:50,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-14 01:19:50,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-14 01:19:50,281 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 235 [2025-03-14 01:19:50,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 235 transitions, 488 flow. Second operand has 2 states, 2 states have (on average 181.0) internal successors, (362), 2 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:50,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:19:50,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 235 [2025-03-14 01:19:50,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:19:50,469 INFO L124 PetriNetUnfolderBase]: 250/1758 cut-off events. [2025-03-14 01:19:50,470 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2025-03-14 01:19:50,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2234 conditions, 1758 events. 250/1758 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 14422 event pairs, 161 based on Foata normal form. 410/1870 useless extension candidates. Maximal degree in co-relation 1683. Up to 378 conditions per place. [2025-03-14 01:19:50,484 INFO L140 encePairwiseOnDemand]: 198/235 looper letters, 15 selfloop transitions, 0 changer transitions 0/183 dead transitions. [2025-03-14 01:19:50,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 183 transitions, 414 flow [2025-03-14 01:19:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-14 01:19:50,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-14 01:19:50,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 412 transitions. [2025-03-14 01:19:50,486 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8765957446808511 [2025-03-14 01:19:50,486 INFO L175 Difference]: Start difference. First operand has 230 places, 235 transitions, 488 flow. Second operand 2 states and 412 transitions. [2025-03-14 01:19:50,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 183 transitions, 414 flow [2025-03-14 01:19:50,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 183 transitions, 412 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-03-14 01:19:50,489 INFO L231 Difference]: Finished difference. Result has 188 places, 183 transitions, 382 flow [2025-03-14 01:19:50,489 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=382, PETRI_PLACES=188, PETRI_TRANSITIONS=183} [2025-03-14 01:19:50,490 INFO L279 CegarLoopForPetriNet]: 230 programPoint places, -42 predicate places. [2025-03-14 01:19:50,490 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 183 transitions, 382 flow [2025-03-14 01:19:50,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 181.0) internal successors, (362), 2 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:50,490 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:19:50,490 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] [2025-03-14 01:19:50,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-14 01:19:50,490 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-03-14 01:19:50,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:19:50,491 INFO L85 PathProgramCache]: Analyzing trace with hash -240193483, now seen corresponding path program 1 times [2025-03-14 01:19:50,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:19:50,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603276118] [2025-03-14 01:19:50,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:19:50,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:19:50,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-14 01:19:50,498 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-14 01:19:50,498 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:19:50,498 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:19:50,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:19:50,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:19:50,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603276118] [2025-03-14 01:19:50,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603276118] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:19:50,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:19:50,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:19:50,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529838107] [2025-03-14 01:19:50,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:19:50,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:19:50,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:19:50,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:19:50,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:19:50,557 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 235 [2025-03-14 01:19:50,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 183 transitions, 382 flow. Second operand has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:50,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:19:50,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 235 [2025-03-14 01:19:50,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:19:52,643 INFO L124 PetriNetUnfolderBase]: 5411/23183 cut-off events. [2025-03-14 01:19:52,643 INFO L125 PetriNetUnfolderBase]: For 625/625 co-relation queries the response was YES. [2025-03-14 01:19:52,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32442 conditions, 23183 events. 5411/23183 cut-off events. For 625/625 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 304956 event pairs, 1869 based on Foata normal form. 0/19600 useless extension candidates. Maximal degree in co-relation 32436. Up to 5475 conditions per place. [2025-03-14 01:19:52,903 INFO L140 encePairwiseOnDemand]: 211/235 looper letters, 53 selfloop transitions, 18 changer transitions 0/215 dead transitions. [2025-03-14 01:19:52,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 215 transitions, 598 flow [2025-03-14 01:19:52,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:19:52,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:19:52,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 545 transitions. [2025-03-14 01:19:52,905 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7730496453900709 [2025-03-14 01:19:52,906 INFO L175 Difference]: Start difference. First operand has 188 places, 183 transitions, 382 flow. Second operand 3 states and 545 transitions. [2025-03-14 01:19:52,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 215 transitions, 598 flow [2025-03-14 01:19:52,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 215 transitions, 598 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:19:52,910 INFO L231 Difference]: Finished difference. Result has 192 places, 201 transitions, 538 flow [2025-03-14 01:19:52,910 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=538, PETRI_PLACES=192, PETRI_TRANSITIONS=201} [2025-03-14 01:19:52,910 INFO L279 CegarLoopForPetriNet]: 230 programPoint places, -38 predicate places. [2025-03-14 01:19:52,910 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 201 transitions, 538 flow [2025-03-14 01:19:52,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:52,911 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:19:52,911 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] [2025-03-14 01:19:52,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-14 01:19:52,911 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-03-14 01:19:52,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:19:52,911 INFO L85 PathProgramCache]: Analyzing trace with hash -52869705, now seen corresponding path program 1 times [2025-03-14 01:19:52,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:19:52,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200205014] [2025-03-14 01:19:52,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:19:52,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:19:52,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-14 01:19:52,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-14 01:19:52,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:19:52,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:19:52,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:19:52,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:19:52,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200205014] [2025-03-14 01:19:52,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200205014] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:19:52,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:19:52,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:19:52,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145184371] [2025-03-14 01:19:52,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:19:52,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:19:52,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:19:52,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:19:52,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:19:52,998 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 235 [2025-03-14 01:19:52,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 201 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:52,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:19:52,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 235 [2025-03-14 01:19:52,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:19:55,730 INFO L124 PetriNetUnfolderBase]: 7453/33457 cut-off events. [2025-03-14 01:19:55,730 INFO L125 PetriNetUnfolderBase]: For 9305/10273 co-relation queries the response was YES. [2025-03-14 01:19:55,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54050 conditions, 33457 events. 7453/33457 cut-off events. For 9305/10273 co-relation queries the response was YES. Maximal size of possible extension queue 919. Compared 469906 event pairs, 3518 based on Foata normal form. 56/28457 useless extension candidates. Maximal degree in co-relation 54042. Up to 9785 conditions per place. [2025-03-14 01:19:56,014 INFO L140 encePairwiseOnDemand]: 223/235 looper letters, 53 selfloop transitions, 20 changer transitions 0/229 dead transitions. [2025-03-14 01:19:56,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 229 transitions, 798 flow [2025-03-14 01:19:56,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:19:56,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:19:56,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 540 transitions. [2025-03-14 01:19:56,019 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7659574468085106 [2025-03-14 01:19:56,019 INFO L175 Difference]: Start difference. First operand has 192 places, 201 transitions, 538 flow. Second operand 3 states and 540 transitions. [2025-03-14 01:19:56,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 229 transitions, 798 flow [2025-03-14 01:19:56,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 229 transitions, 746 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:19:56,043 INFO L231 Difference]: Finished difference. Result has 194 places, 219 transitions, 688 flow [2025-03-14 01:19:56,044 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=688, PETRI_PLACES=194, PETRI_TRANSITIONS=219} [2025-03-14 01:19:56,047 INFO L279 CegarLoopForPetriNet]: 230 programPoint places, -36 predicate places. [2025-03-14 01:19:56,047 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 219 transitions, 688 flow [2025-03-14 01:19:56,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:56,048 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:19:56,048 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] [2025-03-14 01:19:56,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-14 01:19:56,048 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-03-14 01:19:56,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:19:56,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1849431340, now seen corresponding path program 1 times [2025-03-14 01:19:56,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:19:56,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108159441] [2025-03-14 01:19:56,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:19:56,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:19:56,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-14 01:19:56,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-14 01:19:56,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:19:56,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:19:56,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:19:56,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:19:56,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108159441] [2025-03-14 01:19:56,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108159441] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:19:56,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:19:56,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:19:56,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675053879] [2025-03-14 01:19:56,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:19:56,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:19:56,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:19:56,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:19:56,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:19:56,137 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 235 [2025-03-14 01:19:56,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 219 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:56,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:19:56,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 235 [2025-03-14 01:19:56,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:19:59,143 INFO L124 PetriNetUnfolderBase]: 9179/38377 cut-off events. [2025-03-14 01:19:59,143 INFO L125 PetriNetUnfolderBase]: For 15394/16883 co-relation queries the response was YES. [2025-03-14 01:19:59,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66150 conditions, 38377 events. 9179/38377 cut-off events. For 15394/16883 co-relation queries the response was YES. Maximal size of possible extension queue 1126. Compared 543588 event pairs, 3917 based on Foata normal form. 64/32385 useless extension candidates. Maximal degree in co-relation 66141. Up to 11809 conditions per place. [2025-03-14 01:19:59,454 INFO L140 encePairwiseOnDemand]: 223/235 looper letters, 66 selfloop transitions, 28 changer transitions 0/252 dead transitions. [2025-03-14 01:19:59,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 252 transitions, 1039 flow [2025-03-14 01:19:59,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:19:59,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:19:59,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 539 transitions. [2025-03-14 01:19:59,457 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7645390070921986 [2025-03-14 01:19:59,457 INFO L175 Difference]: Start difference. First operand has 194 places, 219 transitions, 688 flow. Second operand 3 states and 539 transitions. [2025-03-14 01:19:59,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 252 transitions, 1039 flow [2025-03-14 01:19:59,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 252 transitions, 983 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:19:59,492 INFO L231 Difference]: Finished difference. Result has 196 places, 243 transitions, 934 flow [2025-03-14 01:19:59,492 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=934, PETRI_PLACES=196, PETRI_TRANSITIONS=243} [2025-03-14 01:19:59,493 INFO L279 CegarLoopForPetriNet]: 230 programPoint places, -34 predicate places. [2025-03-14 01:19:59,493 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 243 transitions, 934 flow [2025-03-14 01:19:59,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:59,494 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:19:59,494 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] [2025-03-14 01:19:59,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-14 01:19:59,494 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)] === [2025-03-14 01:19:59,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:19:59,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1357225266, now seen corresponding path program 1 times [2025-03-14 01:19:59,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:19:59,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310578262] [2025-03-14 01:19:59,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:19:59,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:19:59,502 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-14 01:19:59,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-14 01:19:59,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:19:59,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:19:59,508 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-14 01:19:59,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-14 01:19:59,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-14 01:19:59,517 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:19:59,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:19:59,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-14 01:19:59,523 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-14 01:19:59,523 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2025-03-14 01:19:59,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2025-03-14 01:19:59,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2025-03-14 01:19:59,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining) [2025-03-14 01:19:59,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2025-03-14 01:19:59,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2025-03-14 01:19:59,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (54 of 61 remaining) [2025-03-14 01:19:59,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2025-03-14 01:19:59,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2025-03-14 01:19:59,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2025-03-14 01:19:59,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2025-03-14 01:19:59,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2025-03-14 01:19:59,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2025-03-14 01:19:59,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2025-03-14 01:19:59,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2025-03-14 01:19:59,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2025-03-14 01:19:59,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2025-03-14 01:19:59,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2025-03-14 01:19:59,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2025-03-14 01:19:59,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2025-03-14 01:19:59,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2025-03-14 01:19:59,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2025-03-14 01:19:59,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2025-03-14 01:19:59,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining) [2025-03-14 01:19:59,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2025-03-14 01:19:59,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2025-03-14 01:19:59,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2025-03-14 01:19:59,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2025-03-14 01:19:59,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2025-03-14 01:19:59,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2025-03-14 01:19:59,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2025-03-14 01:19:59,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2025-03-14 01:19:59,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2025-03-14 01:19:59,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2025-03-14 01:19:59,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2025-03-14 01:19:59,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2025-03-14 01:19:59,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-14 01:19:59,527 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-03-14 01:19:59,529 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-14 01:19:59,529 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-03-14 01:19:59,565 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 01:19:59,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 299 places, 306 transitions, 640 flow [2025-03-14 01:19:59,592 INFO L124 PetriNetUnfolderBase]: 16/340 cut-off events. [2025-03-14 01:19:59,592 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-03-14 01:19:59,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 340 events. 16/340 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1389 event pairs, 0 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 289. Up to 5 conditions per place. [2025-03-14 01:19:59,597 INFO L82 GeneralOperation]: Start removeDead. Operand has 299 places, 306 transitions, 640 flow [2025-03-14 01:19:59,601 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 299 places, 306 transitions, 640 flow [2025-03-14 01:19:59,602 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:19:59,602 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;@4729639b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:19:59,602 INFO L334 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2025-03-14 01:19:59,603 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:19:59,603 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-03-14 01:19:59,603 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:19:59,603 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:19:59,603 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:19:59,603 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2025-03-14 01:19:59,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:19:59,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1615255869, now seen corresponding path program 1 times [2025-03-14 01:19:59,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:19:59,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118248160] [2025-03-14 01:19:59,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:19:59,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:19:59,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-14 01:19:59,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-14 01:19:59,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:19:59,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:19:59,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:19:59,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:19:59,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118248160] [2025-03-14 01:19:59,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118248160] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:19:59,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:19:59,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-14 01:19:59,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897786168] [2025-03-14 01:19:59,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:19:59,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-14 01:19:59,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:19:59,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-14 01:19:59,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-14 01:19:59,617 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 306 [2025-03-14 01:19:59,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 306 transitions, 640 flow. Second operand has 2 states, 2 states have (on average 234.0) internal successors, (468), 2 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:19:59,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:19:59,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 306 [2025-03-14 01:19:59,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:20:00,427 INFO L124 PetriNetUnfolderBase]: 1933/8538 cut-off events. [2025-03-14 01:20:00,427 INFO L125 PetriNetUnfolderBase]: For 1169/1169 co-relation queries the response was YES. [2025-03-14 01:20:00,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11743 conditions, 8538 events. 1933/8538 cut-off events. For 1169/1169 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 93992 event pairs, 1329 based on Foata normal form. 2613/9783 useless extension candidates. Maximal degree in co-relation 8793. Up to 2591 conditions per place. [2025-03-14 01:20:00,517 INFO L140 encePairwiseOnDemand]: 257/306 looper letters, 20 selfloop transitions, 0 changer transitions 0/238 dead transitions. [2025-03-14 01:20:00,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 238 transitions, 544 flow [2025-03-14 01:20:00,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-14 01:20:00,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-14 01:20:00,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 535 transitions. [2025-03-14 01:20:00,519 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8741830065359477 [2025-03-14 01:20:00,519 INFO L175 Difference]: Start difference. First operand has 299 places, 306 transitions, 640 flow. Second operand 2 states and 535 transitions. [2025-03-14 01:20:00,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 238 transitions, 544 flow [2025-03-14 01:20:00,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 238 transitions, 538 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-03-14 01:20:00,522 INFO L231 Difference]: Finished difference. Result has 244 places, 238 transitions, 498 flow [2025-03-14 01:20:00,522 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=498, PETRI_PLACES=244, PETRI_TRANSITIONS=238} [2025-03-14 01:20:00,523 INFO L279 CegarLoopForPetriNet]: 299 programPoint places, -55 predicate places. [2025-03-14 01:20:00,523 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 238 transitions, 498 flow [2025-03-14 01:20:00,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 234.0) internal successors, (468), 2 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:20:00,523 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:20:00,523 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] [2025-03-14 01:20:00,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-14 01:20:00,524 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2025-03-14 01:20:00,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:20:00,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1777656537, now seen corresponding path program 1 times [2025-03-14 01:20:00,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:20:00,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10118429] [2025-03-14 01:20:00,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:20:00,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:20:00,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-14 01:20:00,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-14 01:20:00,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:20:00,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:20:00,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:20:00,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:20:00,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10118429] [2025-03-14 01:20:00,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10118429] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:20:00,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:20:00,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:20:00,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329116444] [2025-03-14 01:20:00,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:20:00,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:20:00,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:20:00,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:20:00,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:20:00,605 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 306 [2025-03-14 01:20:00,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 238 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:20:00,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:20:00,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 306 [2025-03-14 01:20:00,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:20:32,024 INFO L124 PetriNetUnfolderBase]: 120275/369502 cut-off events. [2025-03-14 01:20:32,025 INFO L125 PetriNetUnfolderBase]: For 9664/9664 co-relation queries the response was YES. [2025-03-14 01:20:34,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 546269 conditions, 369502 events. 120275/369502 cut-off events. For 9664/9664 co-relation queries the response was YES. Maximal size of possible extension queue 9286. Compared 6242699 event pairs, 45384 based on Foata normal form. 0/311626 useless extension candidates. Maximal degree in co-relation 546262. Up to 103254 conditions per place. [2025-03-14 01:20:36,658 INFO L140 encePairwiseOnDemand]: 274/306 looper letters, 71 selfloop transitions, 24 changer transitions 0/281 dead transitions. [2025-03-14 01:20:36,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 281 transitions, 789 flow [2025-03-14 01:20:36,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:20:36,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:20:36,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 706 transitions. [2025-03-14 01:20:36,660 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7690631808278867 [2025-03-14 01:20:36,660 INFO L175 Difference]: Start difference. First operand has 244 places, 238 transitions, 498 flow. Second operand 3 states and 706 transitions. [2025-03-14 01:20:36,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 281 transitions, 789 flow [2025-03-14 01:20:36,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 281 transitions, 789 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:20:36,670 INFO L231 Difference]: Finished difference. Result has 248 places, 262 transitions, 706 flow [2025-03-14 01:20:36,670 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=706, PETRI_PLACES=248, PETRI_TRANSITIONS=262} [2025-03-14 01:20:36,671 INFO L279 CegarLoopForPetriNet]: 299 programPoint places, -51 predicate places. [2025-03-14 01:20:36,671 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 262 transitions, 706 flow [2025-03-14 01:20:36,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:20:36,671 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:20:36,671 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] [2025-03-14 01:20:36,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-14 01:20:36,671 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2025-03-14 01:20:36,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:20:36,672 INFO L85 PathProgramCache]: Analyzing trace with hash 2039513981, now seen corresponding path program 1 times [2025-03-14 01:20:36,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:20:36,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428436878] [2025-03-14 01:20:36,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:20:36,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:20:36,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-14 01:20:36,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-14 01:20:36,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:20:36,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:20:36,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:20:36,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:20:36,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428436878] [2025-03-14 01:20:36,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428436878] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:20:36,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:20:36,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:20:36,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231717751] [2025-03-14 01:20:36,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:20:36,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:20:36,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:20:36,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:20:36,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:20:36,778 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 306 [2025-03-14 01:20:36,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 262 transitions, 706 flow. Second operand has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:20:36,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:20:36,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 306 [2025-03-14 01:20:36,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand