./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.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.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 5bf99dd5722e6551de991a345b21615b777cf7cef3d452afb8b79773fd45d3d8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 22:00:34,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 22:00:34,388 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-13 22:00:34,391 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 22:00:34,392 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 22:00:34,405 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 22:00:34,406 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 22:00:34,406 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 22:00:34,406 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 22:00:34,406 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 22:00:34,406 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 22:00:34,406 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 22:00:34,406 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 22:00:34,407 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 22:00:34,407 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 22:00:34,407 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 22:00:34,407 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 22:00:34,407 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 22:00:34,407 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 22:00:34,407 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 22:00:34,407 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 22:00:34,407 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 22:00:34,407 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 22:00:34,407 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 22:00:34,407 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 22:00:34,407 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 22:00:34,407 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 22:00:34,407 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 22:00:34,407 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 22:00:34,410 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 22:00:34,410 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 22:00:34,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:00:34,410 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 22:00:34,410 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 22:00:34,410 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 22:00:34,410 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 22:00:34,410 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 22:00:34,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 22:00:34,410 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 22:00:34,410 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 22:00:34,410 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 22:00:34,410 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 22:00:34,410 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 -> 5bf99dd5722e6551de991a345b21615b777cf7cef3d452afb8b79773fd45d3d8 [2025-03-13 22:00:34,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 22:00:34,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 22:00:34,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 22:00:34,638 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 22:00:34,639 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 22:00:34,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i [2025-03-13 22:00:35,810 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3647f73d/1a8b827529124744b1c268a3a375f410/FLAG4dd4ba27e [2025-03-13 22:00:36,118 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 22:00:36,120 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i [2025-03-13 22:00:36,133 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3647f73d/1a8b827529124744b1c268a3a375f410/FLAG4dd4ba27e [2025-03-13 22:00:36,152 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3647f73d/1a8b827529124744b1c268a3a375f410 [2025-03-13 22:00:36,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 22:00:36,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 22:00:36,157 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 22:00:36,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 22:00:36,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 22:00:36,162 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:00:36" (1/1) ... [2025-03-13 22:00:36,163 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a436c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:36, skipping insertion in model container [2025-03-13 22:00:36,163 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:00:36" (1/1) ... [2025-03-13 22:00:36,190 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 22:00:36,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:00:36,382 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 22:00:36,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:00:36,445 INFO L204 MainTranslator]: Completed translation [2025-03-13 22:00:36,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:36 WrapperNode [2025-03-13 22:00:36,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 22:00:36,447 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 22:00:36,448 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 22:00:36,448 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 22:00:36,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:36" (1/1) ... [2025-03-13 22:00:36,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:36" (1/1) ... [2025-03-13 22:00:36,480 INFO L138 Inliner]: procedures = 172, calls = 37, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 250 [2025-03-13 22:00:36,481 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 22:00:36,481 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 22:00:36,481 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 22:00:36,481 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 22:00:36,486 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:36" (1/1) ... [2025-03-13 22:00:36,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:36" (1/1) ... [2025-03-13 22:00:36,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:36" (1/1) ... [2025-03-13 22:00:36,492 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:36" (1/1) ... [2025-03-13 22:00:36,501 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:36" (1/1) ... [2025-03-13 22:00:36,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:36" (1/1) ... [2025-03-13 22:00:36,503 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:36" (1/1) ... [2025-03-13 22:00:36,504 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:36" (1/1) ... [2025-03-13 22:00:36,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 22:00:36,507 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 22:00:36,507 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 22:00:36,507 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 22:00:36,508 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:36" (1/1) ... [2025-03-13 22:00:36,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:00:36,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:00:36,540 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 22:00:36,546 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 22:00:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-13 22:00:36,564 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-03-13 22:00:36,565 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-03-13 22:00:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-13 22:00:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-13 22:00:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 22:00:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-13 22:00:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-13 22:00:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-13 22:00:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-13 22:00:36,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 22:00:36,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 22:00:36,567 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 22:00:36,655 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 22:00:36,656 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 22:00:37,025 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 22:00:37,026 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 22:00:37,026 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 22:00:37,183 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 22:00:37,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:00:37 BoogieIcfgContainer [2025-03-13 22:00:37,183 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 22:00:37,185 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 22:00:37,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 22:00:37,189 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 22:00:37,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 10:00:36" (1/3) ... [2025-03-13 22:00:37,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538e8e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:00:37, skipping insertion in model container [2025-03-13 22:00:37,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:00:36" (2/3) ... [2025-03-13 22:00:37,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538e8e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:00:37, skipping insertion in model container [2025-03-13 22:00:37,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:00:37" (3/3) ... [2025-03-13 22:00:37,192 INFO L128 eAbstractionObserver]: Analyzing ICFG 36_stack_cas_p0_vs_concur.i [2025-03-13 22:00:37,218 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 22:00:37,219 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 36_stack_cas_p0_vs_concur.i that has 2 procedures, 187 locations, 1 initial locations, 3 loop locations, and 19 error locations. [2025-03-13 22:00:37,219 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 22:00:37,302 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 22:00:37,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 192 transitions, 388 flow [2025-03-13 22:00:37,393 INFO L124 PetriNetUnfolderBase]: 5/199 cut-off events. [2025-03-13 22:00:37,394 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:00:37,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 199 events. 5/199 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 143 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 112. Up to 2 conditions per place. [2025-03-13 22:00:37,398 INFO L82 GeneralOperation]: Start removeDead. Operand has 190 places, 192 transitions, 388 flow [2025-03-13 22:00:37,400 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 192 transitions, 388 flow [2025-03-13 22:00:37,405 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:00:37,412 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;@6e41962e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:00:37,413 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2025-03-13 22:00:37,438 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:00:37,438 INFO L124 PetriNetUnfolderBase]: 0/102 cut-off events. [2025-03-13 22:00:37,438 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:00:37,438 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:00:37,439 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 22:00:37,440 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 22:00:37,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:00:37,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1802931186, now seen corresponding path program 1 times [2025-03-13 22:00:37,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:00:37,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490095563] [2025-03-13 22:00:37,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:00:37,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:00:37,523 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-13 22:00:37,569 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-13 22:00:37,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:37,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:00:37,570 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-13 22:00:37,582 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-13 22:00:37,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-13 22:00:37,618 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:37,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:00:37,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-13 22:00:37,653 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-13 22:00:37,655 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2025-03-13 22:00:37,656 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2025-03-13 22:00:37,656 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2025-03-13 22:00:37,656 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2025-03-13 22:00:37,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2025-03-13 22:00:37,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2025-03-13 22:00:37,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2025-03-13 22:00:37,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2025-03-13 22:00:37,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2025-03-13 22:00:37,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2025-03-13 22:00:37,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2025-03-13 22:00:37,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2025-03-13 22:00:37,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2025-03-13 22:00:37,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2025-03-13 22:00:37,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2025-03-13 22:00:37,658 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2025-03-13 22:00:37,658 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2025-03-13 22:00:37,658 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2025-03-13 22:00:37,658 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2025-03-13 22:00:37,658 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2025-03-13 22:00:37,658 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2025-03-13 22:00:37,658 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2025-03-13 22:00:37,658 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2025-03-13 22:00:37,658 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2025-03-13 22:00:37,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2025-03-13 22:00:37,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2025-03-13 22:00:37,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2025-03-13 22:00:37,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2025-03-13 22:00:37,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2025-03-13 22:00:37,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2025-03-13 22:00:37,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2025-03-13 22:00:37,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2025-03-13 22:00:37,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2025-03-13 22:00:37,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2025-03-13 22:00:37,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2025-03-13 22:00:37,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2025-03-13 22:00:37,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2025-03-13 22:00:37,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2025-03-13 22:00:37,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2025-03-13 22:00:37,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 22:00:37,660 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-13 22:00:37,662 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-13 22:00:37,662 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-13 22:00:37,759 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 22:00:37,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 291 places, 296 transitions, 602 flow [2025-03-13 22:00:37,817 INFO L124 PetriNetUnfolderBase]: 10/312 cut-off events. [2025-03-13 22:00:37,818 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-13 22:00:37,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 312 events. 10/312 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 571 event pairs, 0 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 215. Up to 3 conditions per place. [2025-03-13 22:00:37,823 INFO L82 GeneralOperation]: Start removeDead. Operand has 291 places, 296 transitions, 602 flow [2025-03-13 22:00:37,826 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 291 places, 296 transitions, 602 flow [2025-03-13 22:00:37,831 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:00:37,832 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;@6e41962e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:00:37,832 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2025-03-13 22:00:37,844 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:00:37,845 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2025-03-13 22:00:37,845 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:00:37,845 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:00:37,845 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 22:00:37,845 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 22:00:37,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:00:37,846 INFO L85 PathProgramCache]: Analyzing trace with hash -68284537, now seen corresponding path program 1 times [2025-03-13 22:00:37,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:00:37,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121928465] [2025-03-13 22:00:37,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:00:37,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:00:37,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-13 22:00:37,904 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-13 22:00:37,904 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:37,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:00:38,020 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 22:00:38,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:00:38,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121928465] [2025-03-13 22:00:38,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121928465] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:00:38,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:00:38,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-13 22:00:38,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616814263] [2025-03-13 22:00:38,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:00:38,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-13 22:00:38,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:00:38,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-13 22:00:38,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-13 22:00:38,052 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 296 [2025-03-13 22:00:38,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 296 transitions, 602 flow. Second operand has 2 states, 2 states have (on average 256.0) internal successors, (512), 2 states have internal predecessors, (512), 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 22:00:38,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:00:38,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 296 [2025-03-13 22:00:38,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:00:38,272 INFO L124 PetriNetUnfolderBase]: 38/634 cut-off events. [2025-03-13 22:00:38,272 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2025-03-13 22:00:38,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 703 conditions, 634 events. 38/634 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2190 event pairs, 15 based on Foata normal form. 51/618 useless extension candidates. Maximal degree in co-relation 220. Up to 52 conditions per place. [2025-03-13 22:00:38,281 INFO L140 encePairwiseOnDemand]: 265/296 looper letters, 10 selfloop transitions, 0 changer transitions 0/250 dead transitions. [2025-03-13 22:00:38,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 250 transitions, 530 flow [2025-03-13 22:00:38,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-13 22:00:38,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-13 22:00:38,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 551 transitions. [2025-03-13 22:00:38,294 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9307432432432432 [2025-03-13 22:00:38,295 INFO L175 Difference]: Start difference. First operand has 291 places, 296 transitions, 602 flow. Second operand 2 states and 551 transitions. [2025-03-13 22:00:38,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 250 transitions, 530 flow [2025-03-13 22:00:38,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 250 transitions, 530 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:00:38,305 INFO L231 Difference]: Finished difference. Result has 250 places, 250 transitions, 510 flow [2025-03-13 22:00:38,307 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=510, PETRI_PLACES=250, PETRI_TRANSITIONS=250} [2025-03-13 22:00:38,310 INFO L279 CegarLoopForPetriNet]: 291 programPoint places, -41 predicate places. [2025-03-13 22:00:38,311 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 250 transitions, 510 flow [2025-03-13 22:00:38,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 256.0) internal successors, (512), 2 states have internal predecessors, (512), 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 22:00:38,311 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:00:38,311 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 22:00:38,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-13 22:00:38,311 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 22:00:38,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:00:38,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1458551656, now seen corresponding path program 1 times [2025-03-13 22:00:38,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:00:38,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896118416] [2025-03-13 22:00:38,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:00:38,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:00:38,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-03-13 22:00:38,362 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-03-13 22:00:38,362 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:38,362 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:00:38,362 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-13 22:00:38,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-03-13 22:00:38,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-03-13 22:00:38,393 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:38,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:00:38,405 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-13 22:00:38,406 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-13 22:00:38,406 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2025-03-13 22:00:38,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2025-03-13 22:00:38,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2025-03-13 22:00:38,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2025-03-13 22:00:38,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2025-03-13 22:00:38,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2025-03-13 22:00:38,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2025-03-13 22:00:38,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2025-03-13 22:00:38,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2025-03-13 22:00:38,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2025-03-13 22:00:38,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2025-03-13 22:00:38,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2025-03-13 22:00:38,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2025-03-13 22:00:38,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2025-03-13 22:00:38,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2025-03-13 22:00:38,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-13 22:00:38,409 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-13 22:00:38,411 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-13 22:00:38,411 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-03-13 22:00:38,496 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 22:00:38,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 392 places, 400 transitions, 818 flow [2025-03-13 22:00:38,578 INFO L124 PetriNetUnfolderBase]: 15/425 cut-off events. [2025-03-13 22:00:38,579 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-13 22:00:38,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 425 events. 15/425 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1190 event pairs, 0 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 318. Up to 4 conditions per place. [2025-03-13 22:00:38,583 INFO L82 GeneralOperation]: Start removeDead. Operand has 392 places, 400 transitions, 818 flow [2025-03-13 22:00:38,588 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 392 places, 400 transitions, 818 flow [2025-03-13 22:00:38,589 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:00:38,589 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;@6e41962e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:00:38,589 INFO L334 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2025-03-13 22:00:38,596 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:00:38,596 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2025-03-13 22:00:38,596 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:00:38,596 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:00:38,596 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 22:00:38,596 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 22:00:38,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:00:38,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1604812050, now seen corresponding path program 1 times [2025-03-13 22:00:38,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:00:38,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046085400] [2025-03-13 22:00:38,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:00:38,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:00:38,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-13 22:00:38,628 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-13 22:00:38,629 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:38,629 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:00:38,678 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 22:00:38,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:00:38,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046085400] [2025-03-13 22:00:38,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046085400] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:00:38,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:00:38,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-13 22:00:38,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361633798] [2025-03-13 22:00:38,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:00:38,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-13 22:00:38,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:00:38,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-13 22:00:38,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-13 22:00:38,683 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 400 [2025-03-13 22:00:38,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 400 transitions, 818 flow. Second operand has 2 states, 2 states have (on average 340.0) internal successors, (680), 2 states have internal predecessors, (680), 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 22:00:38,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:00:38,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 400 [2025-03-13 22:00:38,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:00:39,319 INFO L124 PetriNetUnfolderBase]: 325/3067 cut-off events. [2025-03-13 22:00:39,320 INFO L125 PetriNetUnfolderBase]: For 190/190 co-relation queries the response was YES. [2025-03-13 22:00:39,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3566 conditions, 3067 events. 325/3067 cut-off events. For 190/190 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 23598 event pairs, 178 based on Foata normal form. 343/3054 useless extension candidates. Maximal degree in co-relation 695. Up to 397 conditions per place. [2025-03-13 22:00:39,352 INFO L140 encePairwiseOnDemand]: 354/400 looper letters, 15 selfloop transitions, 0 changer transitions 0/333 dead transitions. [2025-03-13 22:00:39,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 333 transitions, 714 flow [2025-03-13 22:00:39,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-13 22:00:39,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-13 22:00:39,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 739 transitions. [2025-03-13 22:00:39,354 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.92375 [2025-03-13 22:00:39,354 INFO L175 Difference]: Start difference. First operand has 392 places, 400 transitions, 818 flow. Second operand 2 states and 739 transitions. [2025-03-13 22:00:39,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 333 transitions, 714 flow [2025-03-13 22:00:39,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 333 transitions, 712 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-03-13 22:00:39,362 INFO L231 Difference]: Finished difference. Result has 332 places, 333 transitions, 682 flow [2025-03-13 22:00:39,362 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=682, PETRI_PLACES=332, PETRI_TRANSITIONS=333} [2025-03-13 22:00:39,363 INFO L279 CegarLoopForPetriNet]: 392 programPoint places, -60 predicate places. [2025-03-13 22:00:39,363 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 333 transitions, 682 flow [2025-03-13 22:00:39,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 340.0) internal successors, (680), 2 states have internal predecessors, (680), 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 22:00:39,364 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:00:39,364 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 22:00:39,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-13 22:00:39,364 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 22:00:39,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:00:39,364 INFO L85 PathProgramCache]: Analyzing trace with hash 821977336, now seen corresponding path program 1 times [2025-03-13 22:00:39,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:00:39,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544765444] [2025-03-13 22:00:39,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:00:39,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:00:39,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-13 22:00:39,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-13 22:00:39,418 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:39,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:00:39,988 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 22:00:39,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:00:39,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544765444] [2025-03-13 22:00:39,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544765444] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:00:39,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:00:39,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:00:39,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019306424] [2025-03-13 22:00:39,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:00:39,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:00:39,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:00:39,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:00:39,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:00:40,595 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 400 [2025-03-13 22:00:40,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 333 transitions, 682 flow. Second operand has 6 states, 6 states have (on average 311.5) internal successors, (1869), 6 states have internal predecessors, (1869), 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 22:00:40,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:00:40,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 400 [2025-03-13 22:00:40,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:00:43,820 INFO L124 PetriNetUnfolderBase]: 4022/20944 cut-off events. [2025-03-13 22:00:43,820 INFO L125 PetriNetUnfolderBase]: For 1147/1147 co-relation queries the response was YES. [2025-03-13 22:00:43,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27401 conditions, 20944 events. 4022/20944 cut-off events. For 1147/1147 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 258576 event pairs, 617 based on Foata normal form. 0/18577 useless extension candidates. Maximal degree in co-relation 27395. Up to 3543 conditions per place. [2025-03-13 22:00:43,997 INFO L140 encePairwiseOnDemand]: 371/400 looper letters, 76 selfloop transitions, 37 changer transitions 0/403 dead transitions. [2025-03-13 22:00:43,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 403 transitions, 1088 flow [2025-03-13 22:00:43,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:00:43,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:00:44,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1977 transitions. [2025-03-13 22:00:44,001 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.82375 [2025-03-13 22:00:44,001 INFO L175 Difference]: Start difference. First operand has 332 places, 333 transitions, 682 flow. Second operand 6 states and 1977 transitions. [2025-03-13 22:00:44,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 403 transitions, 1088 flow [2025-03-13 22:00:44,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 403 transitions, 1088 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:00:44,019 INFO L231 Difference]: Finished difference. Result has 342 places, 369 transitions, 958 flow [2025-03-13 22:00:44,020 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=958, PETRI_PLACES=342, PETRI_TRANSITIONS=369} [2025-03-13 22:00:44,021 INFO L279 CegarLoopForPetriNet]: 392 programPoint places, -50 predicate places. [2025-03-13 22:00:44,021 INFO L471 AbstractCegarLoop]: Abstraction has has 342 places, 369 transitions, 958 flow [2025-03-13 22:00:44,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 311.5) internal successors, (1869), 6 states have internal predecessors, (1869), 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 22:00:44,022 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:00:44,023 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 22:00:44,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-13 22:00:44,023 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 22:00:44,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:00:44,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1377763855, now seen corresponding path program 1 times [2025-03-13 22:00:44,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:00:44,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615633351] [2025-03-13 22:00:44,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:00:44,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:00:44,038 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-13 22:00:44,050 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-13 22:00:44,051 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:44,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:00:44,051 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-13 22:00:44,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-13 22:00:44,064 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-13 22:00:44,065 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:44,065 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:00:44,083 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-13 22:00:44,084 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-13 22:00:44,084 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (76 of 77 remaining) [2025-03-13 22:00:44,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (75 of 77 remaining) [2025-03-13 22:00:44,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (74 of 77 remaining) [2025-03-13 22:00:44,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (73 of 77 remaining) [2025-03-13 22:00:44,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (72 of 77 remaining) [2025-03-13 22:00:44,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (71 of 77 remaining) [2025-03-13 22:00:44,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (70 of 77 remaining) [2025-03-13 22:00:44,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (69 of 77 remaining) [2025-03-13 22:00:44,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (68 of 77 remaining) [2025-03-13 22:00:44,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 77 remaining) [2025-03-13 22:00:44,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (66 of 77 remaining) [2025-03-13 22:00:44,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (65 of 77 remaining) [2025-03-13 22:00:44,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (64 of 77 remaining) [2025-03-13 22:00:44,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (63 of 77 remaining) [2025-03-13 22:00:44,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (62 of 77 remaining) [2025-03-13 22:00:44,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (61 of 77 remaining) [2025-03-13 22:00:44,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (60 of 77 remaining) [2025-03-13 22:00:44,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (59 of 77 remaining) [2025-03-13 22:00:44,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (58 of 77 remaining) [2025-03-13 22:00:44,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (57 of 77 remaining) [2025-03-13 22:00:44,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (56 of 77 remaining) [2025-03-13 22:00:44,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (55 of 77 remaining) [2025-03-13 22:00:44,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (54 of 77 remaining) [2025-03-13 22:00:44,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (53 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (52 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (51 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (50 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (49 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (48 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (46 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (45 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (42 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (36 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (35 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (34 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (33 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (32 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (27 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 77 remaining) [2025-03-13 22:00:44,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (17 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (16 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (15 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (14 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (13 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 77 remaining) [2025-03-13 22:00:44,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 77 remaining) [2025-03-13 22:00:44,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-13 22:00:44,090 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-13 22:00:44,091 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-13 22:00:44,091 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-03-13 22:00:44,184 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 22:00:44,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 493 places, 504 transitions, 1036 flow [2025-03-13 22:00:44,243 INFO L124 PetriNetUnfolderBase]: 20/538 cut-off events. [2025-03-13 22:00:44,243 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-03-13 22:00:44,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 557 conditions, 538 events. 20/538 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1887 event pairs, 0 based on Foata normal form. 0/437 useless extension candidates. Maximal degree in co-relation 433. Up to 5 conditions per place. [2025-03-13 22:00:44,252 INFO L82 GeneralOperation]: Start removeDead. Operand has 493 places, 504 transitions, 1036 flow [2025-03-13 22:00:44,257 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 493 places, 504 transitions, 1036 flow [2025-03-13 22:00:44,258 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:00:44,258 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;@6e41962e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:00:44,258 INFO L334 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2025-03-13 22:00:44,263 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:00:44,263 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2025-03-13 22:00:44,263 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:00:44,263 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:00:44,263 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 22:00:44,263 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 22:00:44,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:00:44,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1400528171, now seen corresponding path program 1 times [2025-03-13 22:00:44,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:00:44,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966239781] [2025-03-13 22:00:44,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:00:44,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:00:44,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-13 22:00:44,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-13 22:00:44,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:44,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:00:44,309 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 22:00:44,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:00:44,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966239781] [2025-03-13 22:00:44,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966239781] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:00:44,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:00:44,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-13 22:00:44,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030421615] [2025-03-13 22:00:44,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:00:44,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-13 22:00:44,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:00:44,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-13 22:00:44,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-13 22:00:44,311 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 504 [2025-03-13 22:00:44,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 504 transitions, 1036 flow. Second operand has 2 states, 2 states have (on average 424.0) internal successors, (848), 2 states have internal predecessors, (848), 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 22:00:44,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:00:44,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 504 [2025-03-13 22:00:44,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:00:47,003 INFO L124 PetriNetUnfolderBase]: 2297/15619 cut-off events. [2025-03-13 22:00:47,003 INFO L125 PetriNetUnfolderBase]: For 1729/1729 co-relation queries the response was YES. [2025-03-13 22:00:47,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18927 conditions, 15619 events. 2297/15619 cut-off events. For 1729/1729 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 177174 event pairs, 1422 based on Foata normal form. 2128/15970 useless extension candidates. Maximal degree in co-relation 3544. Up to 2665 conditions per place. [2025-03-13 22:00:47,190 INFO L140 encePairwiseOnDemand]: 443/504 looper letters, 20 selfloop transitions, 0 changer transitions 0/416 dead transitions. [2025-03-13 22:00:47,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 416 transitions, 900 flow [2025-03-13 22:00:47,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-13 22:00:47,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-13 22:00:47,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 927 transitions. [2025-03-13 22:00:47,193 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9196428571428571 [2025-03-13 22:00:47,193 INFO L175 Difference]: Start difference. First operand has 493 places, 504 transitions, 1036 flow. Second operand 2 states and 927 transitions. [2025-03-13 22:00:47,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 416 transitions, 900 flow [2025-03-13 22:00:47,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 416 transitions, 894 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-03-13 22:00:47,199 INFO L231 Difference]: Finished difference. Result has 414 places, 416 transitions, 854 flow [2025-03-13 22:00:47,199 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=854, PETRI_PLACES=414, PETRI_TRANSITIONS=416} [2025-03-13 22:00:47,200 INFO L279 CegarLoopForPetriNet]: 493 programPoint places, -79 predicate places. [2025-03-13 22:00:47,200 INFO L471 AbstractCegarLoop]: Abstraction has has 414 places, 416 transitions, 854 flow [2025-03-13 22:00:47,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 424.0) internal successors, (848), 2 states have internal predecessors, (848), 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 22:00:47,201 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:00:47,201 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 22:00:47,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-13 22:00:47,201 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 22:00:47,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:00:47,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1923887935, now seen corresponding path program 1 times [2025-03-13 22:00:47,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:00:47,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099765732] [2025-03-13 22:00:47,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:00:47,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:00:47,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-13 22:00:47,225 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-13 22:00:47,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:00:47,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:00:47,546 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 22:00:47,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:00:47,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099765732] [2025-03-13 22:00:47,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099765732] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:00:47,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:00:47,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:00:47,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781086977] [2025-03-13 22:00:47,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:00:47,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:00:47,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:00:47,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:00:47,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:00:48,185 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 394 out of 504 [2025-03-13 22:00:48,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 416 transitions, 854 flow. Second operand has 6 states, 6 states have (on average 395.5) internal successors, (2373), 6 states have internal predecessors, (2373), 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 22:00:48,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:00:48,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 394 of 504 [2025-03-13 22:00:48,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:01:10,055 INFO L124 PetriNetUnfolderBase]: 30411/133246 cut-off events. [2025-03-13 22:01:10,055 INFO L125 PetriNetUnfolderBase]: For 7768/7768 co-relation queries the response was YES. [2025-03-13 22:01:11,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176920 conditions, 133246 events. 30411/133246 cut-off events. For 7768/7768 co-relation queries the response was YES. Maximal size of possible extension queue 2133. Compared 2067714 event pairs, 8047 based on Foata normal form. 0/119845 useless extension candidates. Maximal degree in co-relation 176913. Up to 26124 conditions per place. [2025-03-13 22:01:12,615 INFO L140 encePairwiseOnDemand]: 473/504 looper letters, 93 selfloop transitions, 45 changer transitions 0/506 dead transitions. [2025-03-13 22:01:12,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 506 transitions, 1370 flow [2025-03-13 22:01:12,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:01:12,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:01:12,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2506 transitions. [2025-03-13 22:01:12,620 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8287037037037037 [2025-03-13 22:01:12,620 INFO L175 Difference]: Start difference. First operand has 414 places, 416 transitions, 854 flow. Second operand 6 states and 2506 transitions. [2025-03-13 22:01:12,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 506 transitions, 1370 flow [2025-03-13 22:01:12,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 506 transitions, 1370 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:01:12,661 INFO L231 Difference]: Finished difference. Result has 424 places, 460 transitions, 1182 flow [2025-03-13 22:01:12,662 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1182, PETRI_PLACES=424, PETRI_TRANSITIONS=460} [2025-03-13 22:01:12,662 INFO L279 CegarLoopForPetriNet]: 493 programPoint places, -69 predicate places. [2025-03-13 22:01:12,662 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 460 transitions, 1182 flow [2025-03-13 22:01:12,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 395.5) internal successors, (2373), 6 states have internal predecessors, (2373), 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 22:01:12,663 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:01:12,663 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 22:01:12,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-13 22:01:12,664 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 22:01:12,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:01:12,664 INFO L85 PathProgramCache]: Analyzing trace with hash -68356311, now seen corresponding path program 1 times [2025-03-13 22:01:12,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:01:12,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254369768] [2025-03-13 22:01:12,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:01:12,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:01:12,683 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-13 22:01:12,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-13 22:01:12,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:01:12,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:01:12,996 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 22:01:12,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:01:12,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254369768] [2025-03-13 22:01:12,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254369768] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:01:12,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:01:12,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:01:12,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310383464] [2025-03-13 22:01:12,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:01:12,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:01:12,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:01:12,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:01:12,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:01:13,618 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 394 out of 504 [2025-03-13 22:01:13,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 460 transitions, 1182 flow. Second operand has 6 states, 6 states have (on average 395.6666666666667) internal successors, (2374), 6 states have internal predecessors, (2374), 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 22:01:13,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:01:13,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 394 of 504 [2025-03-13 22:01:13,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand