./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version f8ab0bd5 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/36_stack_cas_p0_vs_concur-race.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 e7fe0631e7f950e2868c8cb954edca4f6de3fdffbf6debba58771511fbac2e8b --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 22:00:32,974 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 22:00:33,027 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-13 22:00:33,033 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 22:00:33,035 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 22:00:33,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 22:00:33,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 22:00:33,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 22:00:33,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 22:00:33,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 22:00:33,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 22:00:33,055 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 22:00:33,055 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 22:00:33,056 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 22:00:33,056 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 22:00:33,056 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 22:00:33,056 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 22:00:33,056 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 22:00:33,056 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 22:00:33,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 22:00:33,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 22:00:33,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 22:00:33,057 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 22:00:33,057 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 22:00:33,057 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 22:00:33,057 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 22:00:33,057 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 22:00:33,057 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 22:00:33,057 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 22:00:33,057 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 22:00:33,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 22:00:33,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:00:33,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 22:00:33,057 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 22:00:33,058 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 22:00:33,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 22:00:33,058 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 22:00:33,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 22:00:33,058 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 22:00:33,058 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 22:00:33,058 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 22:00:33,058 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 22:00:33,058 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 -> e7fe0631e7f950e2868c8cb954edca4f6de3fdffbf6debba58771511fbac2e8b [2025-03-13 22:00:33,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 22:00:33,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 22:00:33,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 22:00:33,324 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 22:00:33,324 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 22:00:33,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i [2025-03-13 22:00:34,447 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e17dfe474/cfa19e56f8064bd7ad67c5cb6fe5177b/FLAG89066365b [2025-03-13 22:00:34,756 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 22:00:34,757 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i [2025-03-13 22:00:34,771 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e17dfe474/cfa19e56f8064bd7ad67c5cb6fe5177b/FLAG89066365b [2025-03-13 22:00:35,011 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e17dfe474/cfa19e56f8064bd7ad67c5cb6fe5177b [2025-03-13 22:00:35,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 22:00:35,014 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 22:00:35,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 22:00:35,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 22:00:35,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 22:00:35,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:00:35" (1/1) ... [2025-03-13 22:00:35,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ef8b610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:35, skipping insertion in model container [2025-03-13 22:00:35,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:00:35" (1/1) ... [2025-03-13 22:00:35,039 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 22:00:35,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:00:35,304 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 22:00:35,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:00:35,389 INFO L204 MainTranslator]: Completed translation [2025-03-13 22:00:35,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:35 WrapperNode [2025-03-13 22:00:35,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 22:00:35,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 22:00:35,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 22:00:35,391 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 22:00:35,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:35" (1/1) ... [2025-03-13 22:00:35,410 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:35" (1/1) ... [2025-03-13 22:00:35,438 INFO L138 Inliner]: procedures = 170, calls = 33, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 246 [2025-03-13 22:00:35,439 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 22:00:35,439 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 22:00:35,439 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 22:00:35,439 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 22:00:35,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:35" (1/1) ... [2025-03-13 22:00:35,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:35" (1/1) ... [2025-03-13 22:00:35,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:35" (1/1) ... [2025-03-13 22:00:35,450 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:35" (1/1) ... [2025-03-13 22:00:35,459 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:35" (1/1) ... [2025-03-13 22:00:35,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:35" (1/1) ... [2025-03-13 22:00:35,465 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:35" (1/1) ... [2025-03-13 22:00:35,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:35" (1/1) ... [2025-03-13 22:00:35,468 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 22:00:35,468 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 22:00:35,468 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 22:00:35,468 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 22:00:35,469 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:35" (1/1) ... [2025-03-13 22:00:35,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:00:35,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:00:35,492 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) [2025-03-13 22:00:35,494 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 [2025-03-13 22:00:35,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-13 22:00:35,510 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-03-13 22:00:35,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-03-13 22:00:35,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-13 22:00:35,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 22:00:35,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-13 22:00:35,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-13 22:00:35,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-13 22:00:35,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 22:00:35,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 22:00:35,511 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 22:00:35,600 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 22:00:35,601 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 22:00:35,937 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 22:00:35,938 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 22:00:35,938 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 22:00:36,139 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 22:00:36,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:00:36 BoogieIcfgContainer [2025-03-13 22:00:36,140 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 22:00:36,141 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 22:00:36,141 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 22:00:36,145 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 22:00:36,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 10:00:35" (1/3) ... [2025-03-13 22:00:36,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f33a05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:00:36, skipping insertion in model container [2025-03-13 22:00:36,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:35" (2/3) ... [2025-03-13 22:00:36,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f33a05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:00:36, skipping insertion in model container [2025-03-13 22:00:36,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:00:36" (3/3) ... [2025-03-13 22:00:36,148 INFO L128 eAbstractionObserver]: Analyzing ICFG 36_stack_cas_p0_vs_concur-race.i [2025-03-13 22:00:36,160 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 22:00:36,161 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 36_stack_cas_p0_vs_concur-race.i that has 2 procedures, 207 locations, 1 initial locations, 3 loop locations, and 19 error locations. [2025-03-13 22:00:36,162 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 22:00:36,238 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 22:00:36,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 214 transitions, 432 flow [2025-03-13 22:00:36,329 INFO L124 PetriNetUnfolderBase]: 7/221 cut-off events. [2025-03-13 22:00:36,331 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:00:36,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 221 events. 7/221 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 184 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 134. Up to 3 conditions per place. [2025-03-13 22:00:36,336 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 214 transitions, 432 flow [2025-03-13 22:00:36,339 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 214 transitions, 432 flow [2025-03-13 22:00:36,347 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:00:36,358 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;@61f5af21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:00:36,358 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2025-03-13 22:00:36,379 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:00:36,379 INFO L124 PetriNetUnfolderBase]: 0/102 cut-off events. [2025-03-13 22:00:36,379 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:00:36,379 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:00:36,380 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:00:36,380 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2025-03-13 22:00:36,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:00:36,384 INFO L85 PathProgramCache]: Analyzing trace with hash 191525118, now seen corresponding path program 1 times [2025-03-13 22:00:36,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:00:36,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258687648] [2025-03-13 22:00:36,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:00:36,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:00:36,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-13 22:00:36,517 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-13 22:00:36,517 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:36,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:00:36,517 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-13 22:00:36,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-13 22:00:36,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-13 22:00:36,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:36,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:00:36,590 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-13 22:00:36,591 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-13 22:00:36,593 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2025-03-13 22:00:36,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2025-03-13 22:00:36,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2025-03-13 22:00:36,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2025-03-13 22:00:36,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2025-03-13 22:00:36,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2025-03-13 22:00:36,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2025-03-13 22:00:36,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2025-03-13 22:00:36,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2025-03-13 22:00:36,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2025-03-13 22:00:36,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2025-03-13 22:00:36,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2025-03-13 22:00:36,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2025-03-13 22:00:36,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2025-03-13 22:00:36,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2025-03-13 22:00:36,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2025-03-13 22:00:36,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2025-03-13 22:00:36,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2025-03-13 22:00:36,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2025-03-13 22:00:36,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2025-03-13 22:00:36,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2025-03-13 22:00:36,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2025-03-13 22:00:36,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2025-03-13 22:00:36,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2025-03-13 22:00:36,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2025-03-13 22:00:36,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2025-03-13 22:00:36,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2025-03-13 22:00:36,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2025-03-13 22:00:36,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2025-03-13 22:00:36,599 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2025-03-13 22:00:36,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2025-03-13 22:00:36,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2025-03-13 22:00:36,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2025-03-13 22:00:36,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2025-03-13 22:00:36,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2025-03-13 22:00:36,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2025-03-13 22:00:36,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2025-03-13 22:00:36,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2025-03-13 22:00:36,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2025-03-13 22:00:36,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 22:00:36,601 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-13 22:00:36,604 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-13 22:00:36,604 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-13 22:00:36,701 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 22:00:36,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 331 places, 340 transitions, 690 flow [2025-03-13 22:00:36,788 INFO L124 PetriNetUnfolderBase]: 14/356 cut-off events. [2025-03-13 22:00:36,788 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-13 22:00:36,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 356 events. 14/356 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 733 event pairs, 0 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 259. Up to 3 conditions per place. [2025-03-13 22:00:36,797 INFO L82 GeneralOperation]: Start removeDead. Operand has 331 places, 340 transitions, 690 flow [2025-03-13 22:00:36,802 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 331 places, 340 transitions, 690 flow [2025-03-13 22:00:36,803 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:00:36,804 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;@61f5af21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:00:36,804 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2025-03-13 22:00:36,815 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:00:36,815 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2025-03-13 22:00:36,815 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:00:36,816 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:00:36,816 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:00:36,816 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err18ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2025-03-13 22:00:36,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:00:36,817 INFO L85 PathProgramCache]: Analyzing trace with hash -947305051, now seen corresponding path program 1 times [2025-03-13 22:00:36,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:00:36,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442556173] [2025-03-13 22:00:36,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:00:36,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:00:36,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-13 22:00:36,894 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-13 22:00:36,894 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:36,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:00:37,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:00:37,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:00:37,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442556173] [2025-03-13 22:00:37,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442556173] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:00:37,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:00:37,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-13 22:00:37,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640018649] [2025-03-13 22:00:37,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:00:37,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-13 22:00:37,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:00:37,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-13 22:00:37,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-13 22:00:37,041 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 340 [2025-03-13 22:00:37,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 340 transitions, 690 flow. Second operand has 2 states, 2 states have (on average 302.0) internal successors, (604), 2 states have internal predecessors, (604), 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) [2025-03-13 22:00:37,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:00:37,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 340 [2025-03-13 22:00:37,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:00:37,223 INFO L124 PetriNetUnfolderBase]: 18/522 cut-off events. [2025-03-13 22:00:37,223 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2025-03-13 22:00:37,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 555 conditions, 522 events. 18/522 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1363 event pairs, 6 based on Foata normal form. 41/508 useless extension candidates. Maximal degree in co-relation 194. Up to 19 conditions per place. [2025-03-13 22:00:37,230 INFO L140 encePairwiseOnDemand]: 309/340 looper letters, 6 selfloop transitions, 0 changer transitions 0/290 dead transitions. [2025-03-13 22:00:37,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 290 transitions, 602 flow [2025-03-13 22:00:37,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-13 22:00:37,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-13 22:00:37,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 639 transitions. [2025-03-13 22:00:37,244 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9397058823529412 [2025-03-13 22:00:37,248 INFO L175 Difference]: Start difference. First operand has 331 places, 340 transitions, 690 flow. Second operand 2 states and 639 transitions. [2025-03-13 22:00:37,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 290 transitions, 602 flow [2025-03-13 22:00:37,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 290 transitions, 602 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:00:37,256 INFO L231 Difference]: Finished difference. Result has 290 places, 290 transitions, 590 flow [2025-03-13 22:00:37,258 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=590, PETRI_PLACES=290, PETRI_TRANSITIONS=290} [2025-03-13 22:00:37,260 INFO L279 CegarLoopForPetriNet]: 331 programPoint places, -41 predicate places. [2025-03-13 22:00:37,260 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 290 transitions, 590 flow [2025-03-13 22:00:37,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 302.0) internal successors, (604), 2 states have internal predecessors, (604), 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) [2025-03-13 22:00:37,260 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:00:37,261 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:00:37,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-13 22:00:37,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2025-03-13 22:00:37,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:00:37,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1838867250, now seen corresponding path program 1 times [2025-03-13 22:00:37,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:00:37,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435067281] [2025-03-13 22:00:37,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:00:37,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:00:37,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-03-13 22:00:37,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-03-13 22:00:37,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:37,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:00:37,308 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-13 22:00:37,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-03-13 22:00:37,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-03-13 22:00:37,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:37,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:00:37,340 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-13 22:00:37,341 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-13 22:00:37,341 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2025-03-13 22:00:37,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2025-03-13 22:00:37,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2025-03-13 22:00:37,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2025-03-13 22:00:37,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2025-03-13 22:00:37,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2025-03-13 22:00:37,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2025-03-13 22:00:37,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2025-03-13 22:00:37,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2025-03-13 22:00:37,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2025-03-13 22:00:37,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2025-03-13 22:00:37,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2025-03-13 22:00:37,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2025-03-13 22:00:37,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2025-03-13 22:00:37,341 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2025-03-13 22:00:37,342 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2025-03-13 22:00:37,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2025-03-13 22:00:37,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-13 22:00:37,343 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-13 22:00:37,345 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-13 22:00:37,345 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-03-13 22:00:37,439 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 22:00:37,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 452 places, 466 transitions, 950 flow [2025-03-13 22:00:37,561 INFO L124 PetriNetUnfolderBase]: 21/491 cut-off events. [2025-03-13 22:00:37,561 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-13 22:00:37,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 504 conditions, 491 events. 21/491 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1498 event pairs, 0 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 384. Up to 4 conditions per place. [2025-03-13 22:00:37,566 INFO L82 GeneralOperation]: Start removeDead. Operand has 452 places, 466 transitions, 950 flow [2025-03-13 22:00:37,571 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 452 places, 466 transitions, 950 flow [2025-03-13 22:00:37,572 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:00:37,572 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;@61f5af21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:00:37,572 INFO L334 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2025-03-13 22:00:37,580 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:00:37,580 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2025-03-13 22:00:37,580 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:00:37,580 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:00:37,581 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:00:37,581 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err18ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2025-03-13 22:00:37,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:00:37,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1144182370, now seen corresponding path program 1 times [2025-03-13 22:00:37,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:00:37,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425747957] [2025-03-13 22:00:37,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:00:37,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:00:37,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-13 22:00:37,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-13 22:00:37,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:37,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:00:37,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:00:37,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:00:37,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425747957] [2025-03-13 22:00:37,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425747957] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:00:37,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:00:37,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-13 22:00:37,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112465847] [2025-03-13 22:00:37,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:00:37,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-13 22:00:37,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:00:37,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-13 22:00:37,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-13 22:00:37,689 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 466 [2025-03-13 22:00:37,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 466 transitions, 950 flow. Second operand has 2 states, 2 states have (on average 409.0) internal successors, (818), 2 states have internal predecessors, (818), 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) [2025-03-13 22:00:37,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:00:37,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 466 [2025-03-13 22:00:37,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:00:38,055 INFO L124 PetriNetUnfolderBase]: 81/1536 cut-off events. [2025-03-13 22:00:38,056 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2025-03-13 22:00:38,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1669 conditions, 1536 events. 81/1536 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 8767 event pairs, 42 based on Foata normal form. 172/1523 useless extension candidates. Maximal degree in co-relation 548. Up to 82 conditions per place. [2025-03-13 22:00:38,078 INFO L140 encePairwiseOnDemand]: 420/466 looper letters, 9 selfloop transitions, 0 changer transitions 0/393 dead transitions. [2025-03-13 22:00:38,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 393 transitions, 822 flow [2025-03-13 22:00:38,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-13 22:00:38,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-13 22:00:38,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 871 transitions. [2025-03-13 22:00:38,088 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9345493562231759 [2025-03-13 22:00:38,089 INFO L175 Difference]: Start difference. First operand has 452 places, 466 transitions, 950 flow. Second operand 2 states and 871 transitions. [2025-03-13 22:00:38,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 393 transitions, 822 flow [2025-03-13 22:00:38,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 393 transitions, 820 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-03-13 22:00:38,097 INFO L231 Difference]: Finished difference. Result has 392 places, 393 transitions, 802 flow [2025-03-13 22:00:38,098 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=802, PETRI_PLACES=392, PETRI_TRANSITIONS=393} [2025-03-13 22:00:38,098 INFO L279 CegarLoopForPetriNet]: 452 programPoint places, -60 predicate places. [2025-03-13 22:00:38,099 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 393 transitions, 802 flow [2025-03-13 22:00:38,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 409.0) internal successors, (818), 2 states have internal predecessors, (818), 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) [2025-03-13 22:00:38,099 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:00:38,099 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:00:38,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-13 22:00:38,100 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2025-03-13 22:00:38,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:00:38,102 INFO L85 PathProgramCache]: Analyzing trace with hash 2113997612, now seen corresponding path program 1 times [2025-03-13 22:00:38,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:00:38,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893771128] [2025-03-13 22:00:38,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:00:38,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:00:38,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-13 22:00:38,161 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-13 22:00:38,162 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:38,162 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:00:38,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:00:38,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:00:38,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893771128] [2025-03-13 22:00:38,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893771128] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:00:38,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:00:38,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:00:38,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609409176] [2025-03-13 22:00:38,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:00:38,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:00:38,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:00:38,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:00:38,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:00:39,587 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 466 [2025-03-13 22:00:39,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 393 transitions, 802 flow. Second operand has 6 states, 6 states have (on average 380.5) internal successors, (2283), 6 states have internal predecessors, (2283), 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) [2025-03-13 22:00:39,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:00:39,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 466 [2025-03-13 22:00:39,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:00:41,976 INFO L124 PetriNetUnfolderBase]: 1402/13701 cut-off events. [2025-03-13 22:00:41,976 INFO L125 PetriNetUnfolderBase]: For 646/646 co-relation queries the response was YES. [2025-03-13 22:00:42,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16079 conditions, 13701 events. 1402/13701 cut-off events. For 646/646 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 161264 event pairs, 263 based on Foata normal form. 0/11910 useless extension candidates. Maximal degree in co-relation 16073. Up to 1285 conditions per place. [2025-03-13 22:00:42,130 INFO L140 encePairwiseOnDemand]: 437/466 looper letters, 53 selfloop transitions, 37 changer transitions 0/446 dead transitions. [2025-03-13 22:00:42,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 446 transitions, 1128 flow [2025-03-13 22:00:42,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:00:42,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:00:42,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2368 transitions. [2025-03-13 22:00:42,135 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8469241773962805 [2025-03-13 22:00:42,135 INFO L175 Difference]: Start difference. First operand has 392 places, 393 transitions, 802 flow. Second operand 6 states and 2368 transitions. [2025-03-13 22:00:42,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 446 transitions, 1128 flow [2025-03-13 22:00:42,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 446 transitions, 1128 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:00:42,148 INFO L231 Difference]: Finished difference. Result has 402 places, 429 transitions, 1078 flow [2025-03-13 22:00:42,149 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1078, PETRI_PLACES=402, PETRI_TRANSITIONS=429} [2025-03-13 22:00:42,150 INFO L279 CegarLoopForPetriNet]: 452 programPoint places, -50 predicate places. [2025-03-13 22:00:42,150 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 429 transitions, 1078 flow [2025-03-13 22:00:42,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 380.5) internal successors, (2283), 6 states have internal predecessors, (2283), 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) [2025-03-13 22:00:42,152 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:00:42,152 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:00:42,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-13 22:00:42,152 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2025-03-13 22:00:42,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:00:42,153 INFO L85 PathProgramCache]: Analyzing trace with hash 67213281, now seen corresponding path program 1 times [2025-03-13 22:00:42,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:00:42,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861485063] [2025-03-13 22:00:42,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:00:42,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:00:42,169 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-13 22:00:42,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-13 22:00:42,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:42,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:00:42,188 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-13 22:00:42,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-13 22:00:42,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-13 22:00:42,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:42,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:00:42,209 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-13 22:00:42,209 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-13 22:00:42,209 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (76 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (75 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (74 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (73 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (72 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (71 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (70 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (69 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (68 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (66 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (65 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (64 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (63 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (62 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (61 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (60 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (59 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (58 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (57 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (56 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (55 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (54 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (53 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (52 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (51 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (50 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (49 of 77 remaining) [2025-03-13 22:00:42,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (48 of 77 remaining) [2025-03-13 22:00:42,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 77 remaining) [2025-03-13 22:00:42,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (46 of 77 remaining) [2025-03-13 22:00:42,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (45 of 77 remaining) [2025-03-13 22:00:42,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 77 remaining) [2025-03-13 22:00:42,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 77 remaining) [2025-03-13 22:00:42,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (42 of 77 remaining) [2025-03-13 22:00:42,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 77 remaining) [2025-03-13 22:00:42,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 77 remaining) [2025-03-13 22:00:42,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 77 remaining) [2025-03-13 22:00:42,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 77 remaining) [2025-03-13 22:00:42,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 77 remaining) [2025-03-13 22:00:42,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (36 of 77 remaining) [2025-03-13 22:00:42,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (35 of 77 remaining) [2025-03-13 22:00:42,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (34 of 77 remaining) [2025-03-13 22:00:42,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (33 of 77 remaining) [2025-03-13 22:00:42,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (32 of 77 remaining) [2025-03-13 22:00:42,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 77 remaining) [2025-03-13 22:00:42,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 77 remaining) [2025-03-13 22:00:42,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 77 remaining) [2025-03-13 22:00:42,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 77 remaining) [2025-03-13 22:00:42,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 77 remaining) [2025-03-13 22:00:42,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (26 of 77 remaining) [2025-03-13 22:00:42,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 77 remaining) [2025-03-13 22:00:42,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (16 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (15 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (14 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (13 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 77 remaining) [2025-03-13 22:00:42,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 77 remaining) [2025-03-13 22:00:42,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-13 22:00:42,214 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-13 22:00:42,216 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-13 22:00:42,216 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-03-13 22:00:42,303 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 22:00:42,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 573 places, 592 transitions, 1212 flow [2025-03-13 22:00:42,444 INFO L124 PetriNetUnfolderBase]: 28/626 cut-off events. [2025-03-13 22:00:42,445 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-03-13 22:00:42,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 626 events. 28/626 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2342 event pairs, 0 based on Foata normal form. 0/517 useless extension candidates. Maximal degree in co-relation 509. Up to 5 conditions per place. [2025-03-13 22:00:42,458 INFO L82 GeneralOperation]: Start removeDead. Operand has 573 places, 592 transitions, 1212 flow [2025-03-13 22:00:42,464 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 573 places, 592 transitions, 1212 flow [2025-03-13 22:00:42,466 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:00:42,466 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;@61f5af21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:00:42,466 INFO L334 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2025-03-13 22:00:42,471 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:00:42,471 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2025-03-13 22:00:42,472 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:00:42,472 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:00:42,472 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:00:42,472 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err18ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2025-03-13 22:00:42,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:00:42,472 INFO L85 PathProgramCache]: Analyzing trace with hash -782837153, now seen corresponding path program 1 times [2025-03-13 22:00:42,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:00:42,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784970774] [2025-03-13 22:00:42,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:00:42,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:00:42,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-13 22:00:42,492 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-13 22:00:42,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:42,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:00:42,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:00:42,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:00:42,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784970774] [2025-03-13 22:00:42,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784970774] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:00:42,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:00:42,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-13 22:00:42,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708666757] [2025-03-13 22:00:42,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:00:42,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-13 22:00:42,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:00:42,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-13 22:00:42,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-13 22:00:42,513 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 515 out of 592 [2025-03-13 22:00:42,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 592 transitions, 1212 flow. Second operand has 2 states, 2 states have (on average 516.0) internal successors, (1032), 2 states have internal predecessors, (1032), 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) [2025-03-13 22:00:42,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:00:42,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 515 of 592 [2025-03-13 22:00:42,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:00:43,405 INFO L124 PetriNetUnfolderBase]: 324/4632 cut-off events. [2025-03-13 22:00:43,405 INFO L125 PetriNetUnfolderBase]: For 496/496 co-relation queries the response was YES. [2025-03-13 22:00:43,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5144 conditions, 4632 events. 324/4632 cut-off events. For 496/496 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 40061 event pairs, 204 based on Foata normal form. 697/4746 useless extension candidates. Maximal degree in co-relation 1655. Up to 325 conditions per place. [2025-03-13 22:00:43,479 INFO L140 encePairwiseOnDemand]: 531/592 looper letters, 12 selfloop transitions, 0 changer transitions 0/496 dead transitions. [2025-03-13 22:00:43,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 496 transitions, 1044 flow [2025-03-13 22:00:43,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-13 22:00:43,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-13 22:00:43,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1103 transitions. [2025-03-13 22:00:43,483 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9315878378378378 [2025-03-13 22:00:43,483 INFO L175 Difference]: Start difference. First operand has 573 places, 592 transitions, 1212 flow. Second operand 2 states and 1103 transitions. [2025-03-13 22:00:43,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 496 transitions, 1044 flow [2025-03-13 22:00:43,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 496 transitions, 1038 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-03-13 22:00:43,489 INFO L231 Difference]: Finished difference. Result has 494 places, 496 transitions, 1014 flow [2025-03-13 22:00:43,490 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1014, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1014, PETRI_PLACES=494, PETRI_TRANSITIONS=496} [2025-03-13 22:00:43,491 INFO L279 CegarLoopForPetriNet]: 573 programPoint places, -79 predicate places. [2025-03-13 22:00:43,491 INFO L471 AbstractCegarLoop]: Abstraction has has 494 places, 496 transitions, 1014 flow [2025-03-13 22:00:43,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 516.0) internal successors, (1032), 2 states have internal predecessors, (1032), 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) [2025-03-13 22:00:43,491 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:00:43,491 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:00:43,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-13 22:00:43,492 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2025-03-13 22:00:43,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:00:43,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1968524727, now seen corresponding path program 1 times [2025-03-13 22:00:43,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:00:43,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236733392] [2025-03-13 22:00:43,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:00:43,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:00:43,511 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-13 22:00:43,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-13 22:00:43,521 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:43,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:00:43,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:00:43,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:00:43,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236733392] [2025-03-13 22:00:43,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236733392] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:00:43,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:00:43,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:00:43,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974734225] [2025-03-13 22:00:43,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:00:43,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:00:43,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:00:43,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:00:43,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:00:44,939 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 592 [2025-03-13 22:00:44,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 494 places, 496 transitions, 1014 flow. Second operand has 6 states, 6 states have (on average 487.5) internal successors, (2925), 6 states have internal predecessors, (2925), 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) [2025-03-13 22:00:44,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:00:44,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 592 [2025-03-13 22:00:44,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:00:54,172 INFO L124 PetriNetUnfolderBase]: 6427/48976 cut-off events. [2025-03-13 22:00:54,172 INFO L125 PetriNetUnfolderBase]: For 3013/3013 co-relation queries the response was YES. [2025-03-13 22:00:54,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58782 conditions, 48976 events. 6427/48976 cut-off events. For 3013/3013 co-relation queries the response was YES. Maximal size of possible extension queue 769. Compared 704804 event pairs, 1568 based on Foata normal form. 0/42470 useless extension candidates. Maximal degree in co-relation 58775. Up to 5941 conditions per place. [2025-03-13 22:00:55,016 INFO L140 encePairwiseOnDemand]: 561/592 looper letters, 60 selfloop transitions, 45 changer transitions 0/561 dead transitions. [2025-03-13 22:00:55,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 561 transitions, 1414 flow [2025-03-13 22:00:55,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:00:55,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:00:55,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3025 transitions. [2025-03-13 22:00:55,023 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8516328828828829 [2025-03-13 22:00:55,023 INFO L175 Difference]: Start difference. First operand has 494 places, 496 transitions, 1014 flow. Second operand 6 states and 3025 transitions. [2025-03-13 22:00:55,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 561 transitions, 1414 flow [2025-03-13 22:00:55,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 561 transitions, 1414 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:00:55,038 INFO L231 Difference]: Finished difference. Result has 504 places, 540 transitions, 1342 flow [2025-03-13 22:00:55,040 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1014, PETRI_DIFFERENCE_MINUEND_PLACES=494, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1342, PETRI_PLACES=504, PETRI_TRANSITIONS=540} [2025-03-13 22:00:55,041 INFO L279 CegarLoopForPetriNet]: 573 programPoint places, -69 predicate places. [2025-03-13 22:00:55,042 INFO L471 AbstractCegarLoop]: Abstraction has has 504 places, 540 transitions, 1342 flow [2025-03-13 22:00:55,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 487.5) internal successors, (2925), 6 states have internal predecessors, (2925), 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) [2025-03-13 22:00:55,043 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:00:55,043 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:00:55,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-13 22:00:55,044 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2025-03-13 22:00:55,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:00:55,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1224839005, now seen corresponding path program 1 times [2025-03-13 22:00:55,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:00:55,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998897849] [2025-03-13 22:00:55,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:00:55,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:00:55,061 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-13 22:00:55,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-13 22:00:55,072 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:55,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:00:55,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:00:55,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:00:55,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998897849] [2025-03-13 22:00:55,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998897849] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:00:55,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:00:55,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:00:55,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826691687] [2025-03-13 22:00:55,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:00:55,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:00:55,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:00:55,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:00:55,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:00:56,505 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 592 [2025-03-13 22:00:56,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 540 transitions, 1342 flow. Second operand has 6 states, 6 states have (on average 487.6666666666667) internal successors, (2926), 6 states have internal predecessors, (2926), 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) [2025-03-13 22:00:56,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:00:56,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 592 [2025-03-13 22:00:56,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand