./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 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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-?-48c9605-m [2025-02-08 05:12:20,533 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:12:20,591 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:12:20,597 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:12:20,597 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:12:20,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:12:20,619 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:12:20,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:12:20,620 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:12:20,620 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:12:20,620 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:12:20,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:12:20,621 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:12:20,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:12:20,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:12:20,621 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:12:20,621 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:12:20,621 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:12:20,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:12:20,622 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:12:20,622 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:12:20,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:12:20,622 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:12:20,622 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:12:20,622 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:12:20,622 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:12:20,622 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:12:20,623 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:12:20,623 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:12:20,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:12:20,623 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:12:20,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:12:20,623 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:12:20,623 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:12:20,623 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:12:20,623 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:12:20,624 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:12:20,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:12:20,624 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:12:20,624 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:12:20,624 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:12:20,624 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:12:20,624 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-jdk21/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 [2025-02-08 05:12:21,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:12:21,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:12:21,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:12:21,020 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:12:21,020 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:12:21,021 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i [2025-02-08 05:12:22,138 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/83c43733d/b0ad17b995b144258debd9043ecee792/FLAG9657fba4b [2025-02-08 05:12:22,514 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:12:22,516 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i [2025-02-08 05:12:22,534 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/83c43733d/b0ad17b995b144258debd9043ecee792/FLAG9657fba4b [2025-02-08 05:12:22,551 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/83c43733d/b0ad17b995b144258debd9043ecee792 [2025-02-08 05:12:22,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:12:22,556 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:12:22,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:12:22,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:12:22,562 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:12:22,563 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:12:22" (1/1) ... [2025-02-08 05:12:22,564 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2427776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:22, skipping insertion in model container [2025-02-08 05:12:22,564 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:12:22" (1/1) ... [2025-02-08 05:12:22,592 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:12:22,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:12:22,864 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:12:22,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:12:22,947 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:12:22,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:22 WrapperNode [2025-02-08 05:12:22,947 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:12:22,949 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:12:22,949 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:12:22,949 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:12:22,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:22" (1/1) ... [2025-02-08 05:12:22,961 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:22" (1/1) ... [2025-02-08 05:12:22,980 INFO L138 Inliner]: procedures = 172, calls = 37, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 250 [2025-02-08 05:12:22,980 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:12:22,981 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:12:22,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:12:22,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:12:22,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:22" (1/1) ... [2025-02-08 05:12:22,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:22" (1/1) ... [2025-02-08 05:12:22,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:22" (1/1) ... [2025-02-08 05:12:22,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:22" (1/1) ... [2025-02-08 05:12:23,009 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:22" (1/1) ... [2025-02-08 05:12:23,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:22" (1/1) ... [2025-02-08 05:12:23,016 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:22" (1/1) ... [2025-02-08 05:12:23,020 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:22" (1/1) ... [2025-02-08 05:12:23,027 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:12:23,028 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:12:23,028 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:12:23,028 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:12:23,028 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:22" (1/1) ... [2025-02-08 05:12:23,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:12:23,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:12:23,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 05:12:23,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 05:12:23,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-08 05:12:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-08 05:12:23,079 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-08 05:12:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-08 05:12:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 05:12:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:12:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 05:12:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 05:12:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:12:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 05:12:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:12:23,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:12:23,081 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 05:12:23,180 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:12:23,181 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:12:23,561 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:12:23,561 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:12:23,766 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:12:23,767 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:12:23,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:12:23 BoogieIcfgContainer [2025-02-08 05:12:23,768 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:12:23,770 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:12:23,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:12:23,773 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:12:23,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:12:22" (1/3) ... [2025-02-08 05:12:23,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b8c98b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:12:23, skipping insertion in model container [2025-02-08 05:12:23,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:22" (2/3) ... [2025-02-08 05:12:23,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b8c98b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:12:23, skipping insertion in model container [2025-02-08 05:12:23,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:12:23" (3/3) ... [2025-02-08 05:12:23,776 INFO L128 eAbstractionObserver]: Analyzing ICFG 36_stack_cas_p0_vs_concur.i [2025-02-08 05:12:23,787 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:12:23,788 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 36_stack_cas_p0_vs_concur.i that has 2 procedures, 189 locations, 1 initial locations, 3 loop locations, and 19 error locations. [2025-02-08 05:12:23,789 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:12:23,853 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:12:23,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 193 transitions, 390 flow [2025-02-08 05:12:23,939 INFO L124 PetriNetUnfolderBase]: 4/200 cut-off events. [2025-02-08 05:12:23,940 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:12:23,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 200 events. 4/200 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. 0/174 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2025-02-08 05:12:23,944 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 193 transitions, 390 flow [2025-02-08 05:12:23,947 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 192 places, 193 transitions, 390 flow [2025-02-08 05:12:23,954 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:12:23,962 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;@ba44564, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:12:23,962 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2025-02-08 05:12:23,979 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:12:23,979 INFO L124 PetriNetUnfolderBase]: 0/102 cut-off events. [2025-02-08 05:12:23,979 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:12:23,979 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:12:23,980 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] [2025-02-08 05:12:23,980 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2025-02-08 05:12:23,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:12:23,984 INFO L85 PathProgramCache]: Analyzing trace with hash 202297103, now seen corresponding path program 1 times [2025-02-08 05:12:23,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:12:23,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962864379] [2025-02-08 05:12:23,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:12:23,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:12:24,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-02-08 05:12:24,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-02-08 05:12:24,124 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:24,124 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:12:24,124 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:12:24,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-02-08 05:12:24,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-02-08 05:12:24,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:24,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:12:24,194 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:12:24,195 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:12:24,196 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2025-02-08 05:12:24,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2025-02-08 05:12:24,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2025-02-08 05:12:24,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2025-02-08 05:12:24,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2025-02-08 05:12:24,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2025-02-08 05:12:24,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2025-02-08 05:12:24,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2025-02-08 05:12:24,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2025-02-08 05:12:24,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2025-02-08 05:12:24,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2025-02-08 05:12:24,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2025-02-08 05:12:24,199 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2025-02-08 05:12:24,199 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2025-02-08 05:12:24,199 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2025-02-08 05:12:24,199 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2025-02-08 05:12:24,199 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2025-02-08 05:12:24,199 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2025-02-08 05:12:24,199 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2025-02-08 05:12:24,200 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2025-02-08 05:12:24,200 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2025-02-08 05:12:24,200 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2025-02-08 05:12:24,200 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2025-02-08 05:12:24,200 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2025-02-08 05:12:24,201 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2025-02-08 05:12:24,201 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2025-02-08 05:12:24,201 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2025-02-08 05:12:24,201 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2025-02-08 05:12:24,201 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2025-02-08 05:12:24,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2025-02-08 05:12:24,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2025-02-08 05:12:24,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2025-02-08 05:12:24,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2025-02-08 05:12:24,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2025-02-08 05:12:24,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2025-02-08 05:12:24,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2025-02-08 05:12:24,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2025-02-08 05:12:24,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2025-02-08 05:12:24,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2025-02-08 05:12:24,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:12:24,204 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 05:12:24,210 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:12:24,211 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-08 05:12:24,323 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:12:24,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 298 transitions, 606 flow [2025-02-08 05:12:24,398 INFO L124 PetriNetUnfolderBase]: 8/314 cut-off events. [2025-02-08 05:12:24,398 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 05:12:24,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 314 events. 8/314 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 577 event pairs, 0 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 217. Up to 3 conditions per place. [2025-02-08 05:12:24,403 INFO L82 GeneralOperation]: Start removeDead. Operand has 295 places, 298 transitions, 606 flow [2025-02-08 05:12:24,406 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 295 places, 298 transitions, 606 flow [2025-02-08 05:12:24,409 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:12:24,411 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;@ba44564, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:12:24,411 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2025-02-08 05:12:24,421 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:12:24,421 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2025-02-08 05:12:24,421 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:12:24,421 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:12:24,421 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] [2025-02-08 05:12:24,421 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err18ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2025-02-08 05:12:24,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:12:24,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1395249057, now seen corresponding path program 1 times [2025-02-08 05:12:24,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:12:24,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436038490] [2025-02-08 05:12:24,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:12:24,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:12:24,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-02-08 05:12:24,475 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-02-08 05:12:24,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:24,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:12:24,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:12:24,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:12:24,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436038490] [2025-02-08 05:12:24,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436038490] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:12:24,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:12:24,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 05:12:24,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929985694] [2025-02-08 05:12:24,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:12:24,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 05:12:24,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:12:24,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 05:12:24,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 05:12:24,618 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 298 [2025-02-08 05:12:24,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 298 transitions, 606 flow. Second operand has 2 states, 2 states have (on average 258.0) internal successors, (516), 2 states have internal predecessors, (516), 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) [2025-02-08 05:12:24,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:12:24,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 298 [2025-02-08 05:12:24,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:12:24,767 INFO L124 PetriNetUnfolderBase]: 22/527 cut-off events. [2025-02-08 05:12:24,767 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2025-02-08 05:12:24,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 527 events. 22/527 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1731 event pairs, 12 based on Foata normal form. 45/517 useless extension candidates. Maximal degree in co-relation 173. Up to 33 conditions per place. [2025-02-08 05:12:24,774 INFO L140 encePairwiseOnDemand]: 269/298 looper letters, 8 selfloop transitions, 0 changer transitions 0/246 dead transitions. [2025-02-08 05:12:24,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 246 transitions, 518 flow [2025-02-08 05:12:24,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 05:12:24,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-08 05:12:24,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 551 transitions. [2025-02-08 05:12:24,789 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.924496644295302 [2025-02-08 05:12:24,791 INFO L175 Difference]: Start difference. First operand has 295 places, 298 transitions, 606 flow. Second operand 2 states and 551 transitions. [2025-02-08 05:12:24,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 246 transitions, 518 flow [2025-02-08 05:12:24,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 246 transitions, 518 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:12:24,800 INFO L231 Difference]: Finished difference. Result has 248 places, 246 transitions, 502 flow [2025-02-08 05:12:24,803 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=502, PETRI_PLACES=248, PETRI_TRANSITIONS=246} [2025-02-08 05:12:24,807 INFO L279 CegarLoopForPetriNet]: 295 programPoint places, -47 predicate places. [2025-02-08 05:12:24,807 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 246 transitions, 502 flow [2025-02-08 05:12:24,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 258.0) internal successors, (516), 2 states have internal predecessors, (516), 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) [2025-02-08 05:12:24,808 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:12:24,808 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] [2025-02-08 05:12:24,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 05:12:24,809 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2025-02-08 05:12:24,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:12:24,810 INFO L85 PathProgramCache]: Analyzing trace with hash -408967868, now seen corresponding path program 1 times [2025-02-08 05:12:24,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:12:24,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596381919] [2025-02-08 05:12:24,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:12:24,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:12:24,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-08 05:12:24,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-08 05:12:24,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:24,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:12:24,854 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:12:24,858 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-08 05:12:24,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-08 05:12:24,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:24,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:12:24,886 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:12:24,886 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:12:24,887 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2025-02-08 05:12:24,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2025-02-08 05:12:24,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2025-02-08 05:12:24,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2025-02-08 05:12:24,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2025-02-08 05:12:24,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2025-02-08 05:12:24,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2025-02-08 05:12:24,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2025-02-08 05:12:24,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2025-02-08 05:12:24,888 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2025-02-08 05:12:24,888 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2025-02-08 05:12:24,888 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2025-02-08 05:12:24,888 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2025-02-08 05:12:24,888 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2025-02-08 05:12:24,888 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2025-02-08 05:12:24,888 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2025-02-08 05:12:24,888 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2025-02-08 05:12:24,888 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2025-02-08 05:12:24,888 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2025-02-08 05:12:24,888 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2025-02-08 05:12:24,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2025-02-08 05:12:24,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2025-02-08 05:12:24,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2025-02-08 05:12:24,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2025-02-08 05:12:24,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2025-02-08 05:12:24,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2025-02-08 05:12:24,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2025-02-08 05:12:24,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2025-02-08 05:12:24,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2025-02-08 05:12:24,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2025-02-08 05:12:24,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2025-02-08 05:12:24,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2025-02-08 05:12:24,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2025-02-08 05:12:24,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:12:24,891 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-08 05:12:24,891 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:12:24,891 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-08 05:12:24,978 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:12:24,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 398 places, 403 transitions, 824 flow [2025-02-08 05:12:25,056 INFO L124 PetriNetUnfolderBase]: 12/428 cut-off events. [2025-02-08 05:12:25,057 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-08 05:12:25,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 428 events. 12/428 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1207 event pairs, 0 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 321. Up to 4 conditions per place. [2025-02-08 05:12:25,061 INFO L82 GeneralOperation]: Start removeDead. Operand has 398 places, 403 transitions, 824 flow [2025-02-08 05:12:25,067 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 398 places, 403 transitions, 824 flow [2025-02-08 05:12:25,068 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:12:25,068 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;@ba44564, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:12:25,068 INFO L334 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2025-02-08 05:12:25,077 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:12:25,077 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2025-02-08 05:12:25,077 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:12:25,077 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:12:25,078 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] [2025-02-08 05:12:25,078 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err18ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2025-02-08 05:12:25,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:12:25,078 INFO L85 PathProgramCache]: Analyzing trace with hash -757271831, now seen corresponding path program 1 times [2025-02-08 05:12:25,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:12:25,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557578858] [2025-02-08 05:12:25,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:12:25,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:12:25,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-02-08 05:12:25,112 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-02-08 05:12:25,113 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:25,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:12:25,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:12:25,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:12:25,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557578858] [2025-02-08 05:12:25,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557578858] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:12:25,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:12:25,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 05:12:25,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088623249] [2025-02-08 05:12:25,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:12:25,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 05:12:25,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:12:25,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 05:12:25,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 05:12:25,153 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 342 out of 403 [2025-02-08 05:12:25,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 403 transitions, 824 flow. Second operand has 2 states, 2 states have (on average 343.0) internal successors, (686), 2 states have internal predecessors, (686), 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) [2025-02-08 05:12:25,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:12:25,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 342 of 403 [2025-02-08 05:12:25,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:12:25,723 INFO L124 PetriNetUnfolderBase]: 150/2011 cut-off events. [2025-02-08 05:12:25,723 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2025-02-08 05:12:25,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2286 conditions, 2011 events. 150/2011 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 14294 event pairs, 108 based on Foata normal form. 237/2009 useless extension candidates. Maximal degree in co-relation 569. Up to 193 conditions per place. [2025-02-08 05:12:25,742 INFO L140 encePairwiseOnDemand]: 360/403 looper letters, 12 selfloop transitions, 0 changer transitions 0/327 dead transitions. [2025-02-08 05:12:25,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 327 transitions, 696 flow [2025-02-08 05:12:25,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 05:12:25,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-08 05:12:25,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 739 transitions. [2025-02-08 05:12:25,749 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9168734491315137 [2025-02-08 05:12:25,749 INFO L175 Difference]: Start difference. First operand has 398 places, 403 transitions, 824 flow. Second operand 2 states and 739 transitions. [2025-02-08 05:12:25,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 327 transitions, 696 flow [2025-02-08 05:12:25,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 327 transitions, 694 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-02-08 05:12:25,757 INFO L231 Difference]: Finished difference. Result has 329 places, 327 transitions, 670 flow [2025-02-08 05:12:25,757 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=670, PETRI_PLACES=329, PETRI_TRANSITIONS=327} [2025-02-08 05:12:25,758 INFO L279 CegarLoopForPetriNet]: 398 programPoint places, -69 predicate places. [2025-02-08 05:12:25,758 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 327 transitions, 670 flow [2025-02-08 05:12:25,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 343.0) internal successors, (686), 2 states have internal predecessors, (686), 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) [2025-02-08 05:12:25,759 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:12:25,759 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] [2025-02-08 05:12:25,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 05:12:25,760 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2025-02-08 05:12:25,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:12:25,761 INFO L85 PathProgramCache]: Analyzing trace with hash 362270227, now seen corresponding path program 1 times [2025-02-08 05:12:25,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:12:25,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712801139] [2025-02-08 05:12:25,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:12:25,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:12:25,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-02-08 05:12:25,817 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-02-08 05:12:25,817 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:25,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:12:26,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:12:26,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:12:26,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712801139] [2025-02-08 05:12:26,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712801139] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:12:26,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:12:26,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:12:26,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732744405] [2025-02-08 05:12:26,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:12:26,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:12:26,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:12:26,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:12:26,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:12:27,044 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 403 [2025-02-08 05:12:27,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 327 transitions, 670 flow. Second operand has 6 states, 6 states have (on average 314.5) internal successors, (1887), 6 states have internal predecessors, (1887), 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) [2025-02-08 05:12:27,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:12:27,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 403 [2025-02-08 05:12:27,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:12:29,798 INFO L124 PetriNetUnfolderBase]: 2156/15683 cut-off events. [2025-02-08 05:12:29,798 INFO L125 PetriNetUnfolderBase]: For 850/850 co-relation queries the response was YES. [2025-02-08 05:12:29,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19507 conditions, 15683 events. 2156/15683 cut-off events. For 850/850 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 197002 event pairs, 511 based on Foata normal form. 0/13727 useless extension candidates. Maximal degree in co-relation 19501. Up to 1909 conditions per place. [2025-02-08 05:12:29,930 INFO L140 encePairwiseOnDemand]: 374/403 looper letters, 64 selfloop transitions, 37 changer transitions 0/389 dead transitions. [2025-02-08 05:12:29,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 389 transitions, 1036 flow [2025-02-08 05:12:29,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:12:29,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:12:29,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1983 transitions. [2025-02-08 05:12:29,936 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8200992555831266 [2025-02-08 05:12:29,936 INFO L175 Difference]: Start difference. First operand has 329 places, 327 transitions, 670 flow. Second operand 6 states and 1983 transitions. [2025-02-08 05:12:29,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 389 transitions, 1036 flow [2025-02-08 05:12:29,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 389 transitions, 1036 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:12:29,947 INFO L231 Difference]: Finished difference. Result has 339 places, 363 transitions, 946 flow [2025-02-08 05:12:29,947 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=946, PETRI_PLACES=339, PETRI_TRANSITIONS=363} [2025-02-08 05:12:29,948 INFO L279 CegarLoopForPetriNet]: 398 programPoint places, -59 predicate places. [2025-02-08 05:12:29,948 INFO L471 AbstractCegarLoop]: Abstraction has has 339 places, 363 transitions, 946 flow [2025-02-08 05:12:29,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 314.5) internal successors, (1887), 6 states have internal predecessors, (1887), 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) [2025-02-08 05:12:29,949 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:12:29,949 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] [2025-02-08 05:12:29,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 05:12:29,950 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2025-02-08 05:12:29,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:12:29,950 INFO L85 PathProgramCache]: Analyzing trace with hash -2123978358, now seen corresponding path program 1 times [2025-02-08 05:12:29,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:12:29,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494086720] [2025-02-08 05:12:29,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:12:29,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:12:29,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-02-08 05:12:29,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-02-08 05:12:29,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:29,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:12:29,980 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:12:29,984 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-02-08 05:12:29,994 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-02-08 05:12:29,994 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:29,994 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:12:30,010 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:12:30,011 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:12:30,011 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (76 of 77 remaining) [2025-02-08 05:12:30,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (75 of 77 remaining) [2025-02-08 05:12:30,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (74 of 77 remaining) [2025-02-08 05:12:30,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (73 of 77 remaining) [2025-02-08 05:12:30,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (72 of 77 remaining) [2025-02-08 05:12:30,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (71 of 77 remaining) [2025-02-08 05:12:30,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (70 of 77 remaining) [2025-02-08 05:12:30,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (69 of 77 remaining) [2025-02-08 05:12:30,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (68 of 77 remaining) [2025-02-08 05:12:30,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 77 remaining) [2025-02-08 05:12:30,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (66 of 77 remaining) [2025-02-08 05:12:30,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (65 of 77 remaining) [2025-02-08 05:12:30,013 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (64 of 77 remaining) [2025-02-08 05:12:30,013 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (63 of 77 remaining) [2025-02-08 05:12:30,013 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (62 of 77 remaining) [2025-02-08 05:12:30,013 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (61 of 77 remaining) [2025-02-08 05:12:30,013 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (60 of 77 remaining) [2025-02-08 05:12:30,013 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (59 of 77 remaining) [2025-02-08 05:12:30,013 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (58 of 77 remaining) [2025-02-08 05:12:30,013 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (57 of 77 remaining) [2025-02-08 05:12:30,013 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (56 of 77 remaining) [2025-02-08 05:12:30,013 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (55 of 77 remaining) [2025-02-08 05:12:30,014 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (54 of 77 remaining) [2025-02-08 05:12:30,014 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (53 of 77 remaining) [2025-02-08 05:12:30,014 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (52 of 77 remaining) [2025-02-08 05:12:30,014 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (51 of 77 remaining) [2025-02-08 05:12:30,014 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (50 of 77 remaining) [2025-02-08 05:12:30,014 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (49 of 77 remaining) [2025-02-08 05:12:30,014 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (48 of 77 remaining) [2025-02-08 05:12:30,014 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 77 remaining) [2025-02-08 05:12:30,014 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (46 of 77 remaining) [2025-02-08 05:12:30,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (45 of 77 remaining) [2025-02-08 05:12:30,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 77 remaining) [2025-02-08 05:12:30,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 77 remaining) [2025-02-08 05:12:30,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (42 of 77 remaining) [2025-02-08 05:12:30,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 77 remaining) [2025-02-08 05:12:30,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 77 remaining) [2025-02-08 05:12:30,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 77 remaining) [2025-02-08 05:12:30,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 77 remaining) [2025-02-08 05:12:30,015 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 77 remaining) [2025-02-08 05:12:30,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (36 of 77 remaining) [2025-02-08 05:12:30,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 77 remaining) [2025-02-08 05:12:30,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 77 remaining) [2025-02-08 05:12:30,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 77 remaining) [2025-02-08 05:12:30,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (32 of 77 remaining) [2025-02-08 05:12:30,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 77 remaining) [2025-02-08 05:12:30,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 77 remaining) [2025-02-08 05:12:30,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 77 remaining) [2025-02-08 05:12:30,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 77 remaining) [2025-02-08 05:12:30,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (27 of 77 remaining) [2025-02-08 05:12:30,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 77 remaining) [2025-02-08 05:12:30,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 77 remaining) [2025-02-08 05:12:30,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 77 remaining) [2025-02-08 05:12:30,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 77 remaining) [2025-02-08 05:12:30,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 77 remaining) [2025-02-08 05:12:30,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 77 remaining) [2025-02-08 05:12:30,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 77 remaining) [2025-02-08 05:12:30,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 77 remaining) [2025-02-08 05:12:30,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 77 remaining) [2025-02-08 05:12:30,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (17 of 77 remaining) [2025-02-08 05:12:30,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (16 of 77 remaining) [2025-02-08 05:12:30,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 77 remaining) [2025-02-08 05:12:30,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 77 remaining) [2025-02-08 05:12:30,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 77 remaining) [2025-02-08 05:12:30,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 77 remaining) [2025-02-08 05:12:30,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 77 remaining) [2025-02-08 05:12:30,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 77 remaining) [2025-02-08 05:12:30,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 77 remaining) [2025-02-08 05:12:30,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 77 remaining) [2025-02-08 05:12:30,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 77 remaining) [2025-02-08 05:12:30,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 77 remaining) [2025-02-08 05:12:30,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 77 remaining) [2025-02-08 05:12:30,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 77 remaining) [2025-02-08 05:12:30,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 77 remaining) [2025-02-08 05:12:30,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 77 remaining) [2025-02-08 05:12:30,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 77 remaining) [2025-02-08 05:12:30,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 77 remaining) [2025-02-08 05:12:30,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 05:12:30,019 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-08 05:12:30,019 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:12:30,019 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-02-08 05:12:30,124 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:12:30,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 501 places, 508 transitions, 1044 flow [2025-02-08 05:12:30,217 INFO L124 PetriNetUnfolderBase]: 16/542 cut-off events. [2025-02-08 05:12:30,217 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-08 05:12:30,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 542 events. 16/542 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1907 event pairs, 0 based on Foata normal form. 0/441 useless extension candidates. Maximal degree in co-relation 436. Up to 5 conditions per place. [2025-02-08 05:12:30,223 INFO L82 GeneralOperation]: Start removeDead. Operand has 501 places, 508 transitions, 1044 flow [2025-02-08 05:12:30,230 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 501 places, 508 transitions, 1044 flow [2025-02-08 05:12:30,230 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:12:30,231 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;@ba44564, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:12:30,231 INFO L334 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2025-02-08 05:12:30,238 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:12:30,238 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2025-02-08 05:12:30,238 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:12:30,238 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:12:30,238 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] [2025-02-08 05:12:30,239 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err18ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2025-02-08 05:12:30,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:12:30,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1888069841, now seen corresponding path program 1 times [2025-02-08 05:12:30,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:12:30,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194654950] [2025-02-08 05:12:30,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:12:30,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:12:30,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-02-08 05:12:30,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-02-08 05:12:30,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:30,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:12:30,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:12:30,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:12:30,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194654950] [2025-02-08 05:12:30,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194654950] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:12:30,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:12:30,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 05:12:30,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603385717] [2025-02-08 05:12:30,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:12:30,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 05:12:30,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:12:30,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 05:12:30,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 05:12:30,282 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 427 out of 508 [2025-02-08 05:12:30,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 508 transitions, 1044 flow. Second operand has 2 states, 2 states have (on average 428.0) internal successors, (856), 2 states have internal predecessors, (856), 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) [2025-02-08 05:12:30,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:12:30,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 427 of 508 [2025-02-08 05:12:30,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:12:31,613 INFO L124 PetriNetUnfolderBase]: 854/8139 cut-off events. [2025-02-08 05:12:31,614 INFO L125 PetriNetUnfolderBase]: For 1133/1133 co-relation queries the response was YES. [2025-02-08 05:12:31,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9567 conditions, 8139 events. 854/8139 cut-off events. For 1133/1133 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 85384 event pairs, 684 based on Foata normal form. 1196/8358 useless extension candidates. Maximal degree in co-relation 2265. Up to 1025 conditions per place. [2025-02-08 05:12:31,686 INFO L140 encePairwiseOnDemand]: 451/508 looper letters, 16 selfloop transitions, 0 changer transitions 0/408 dead transitions. [2025-02-08 05:12:31,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 408 transitions, 876 flow [2025-02-08 05:12:31,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 05:12:31,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-08 05:12:31,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 927 transitions. [2025-02-08 05:12:31,689 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9124015748031497 [2025-02-08 05:12:31,689 INFO L175 Difference]: Start difference. First operand has 501 places, 508 transitions, 1044 flow. Second operand 2 states and 927 transitions. [2025-02-08 05:12:31,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 408 transitions, 876 flow [2025-02-08 05:12:31,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 408 transitions, 870 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-02-08 05:12:31,695 INFO L231 Difference]: Finished difference. Result has 410 places, 408 transitions, 838 flow [2025-02-08 05:12:31,695 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=838, PETRI_PLACES=410, PETRI_TRANSITIONS=408} [2025-02-08 05:12:31,696 INFO L279 CegarLoopForPetriNet]: 501 programPoint places, -91 predicate places. [2025-02-08 05:12:31,696 INFO L471 AbstractCegarLoop]: Abstraction has has 410 places, 408 transitions, 838 flow [2025-02-08 05:12:31,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 428.0) internal successors, (856), 2 states have internal predecessors, (856), 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) [2025-02-08 05:12:31,696 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:12:31,697 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] [2025-02-08 05:12:31,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 05:12:31,697 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2025-02-08 05:12:31,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:12:31,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1309410437, now seen corresponding path program 1 times [2025-02-08 05:12:31,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:12:31,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059241389] [2025-02-08 05:12:31,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:12:31,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:12:31,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-02-08 05:12:31,724 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-02-08 05:12:31,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:31,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:12:32,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:12:32,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:12:32,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059241389] [2025-02-08 05:12:32,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059241389] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:12:32,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:12:32,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:12:32,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244652778] [2025-02-08 05:12:32,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:12:32,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:12:32,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:12:32,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:12:32,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:12:32,828 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 508 [2025-02-08 05:12:32,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 408 transitions, 838 flow. Second operand has 6 states, 6 states have (on average 399.5) internal successors, (2397), 6 states have internal predecessors, (2397), 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) [2025-02-08 05:12:32,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:12:32,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 508 [2025-02-08 05:12:32,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:12:44,714 INFO L124 PetriNetUnfolderBase]: 13375/73637 cut-off events. [2025-02-08 05:12:44,714 INFO L125 PetriNetUnfolderBase]: For 4918/4918 co-relation queries the response was YES. [2025-02-08 05:12:45,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94562 conditions, 73637 events. 13375/73637 cut-off events. For 4918/4918 co-relation queries the response was YES. Maximal size of possible extension queue 1383. Compared 1132191 event pairs, 3629 based on Foata normal form. 0/64770 useless extension candidates. Maximal degree in co-relation 94555. Up to 11667 conditions per place. [2025-02-08 05:12:45,786 INFO L140 encePairwiseOnDemand]: 477/508 looper letters, 76 selfloop transitions, 45 changer transitions 0/486 dead transitions. [2025-02-08 05:12:45,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 486 transitions, 1296 flow [2025-02-08 05:12:45,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:12:45,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:12:45,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2513 transitions. [2025-02-08 05:12:45,792 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.824475065616798 [2025-02-08 05:12:45,792 INFO L175 Difference]: Start difference. First operand has 410 places, 408 transitions, 838 flow. Second operand 6 states and 2513 transitions. [2025-02-08 05:12:45,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 486 transitions, 1296 flow [2025-02-08 05:12:45,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 486 transitions, 1296 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:12:45,812 INFO L231 Difference]: Finished difference. Result has 420 places, 452 transitions, 1166 flow [2025-02-08 05:12:45,812 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1166, PETRI_PLACES=420, PETRI_TRANSITIONS=452} [2025-02-08 05:12:45,813 INFO L279 CegarLoopForPetriNet]: 501 programPoint places, -81 predicate places. [2025-02-08 05:12:45,813 INFO L471 AbstractCegarLoop]: Abstraction has has 420 places, 452 transitions, 1166 flow [2025-02-08 05:12:45,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 399.5) internal successors, (2397), 6 states have internal predecessors, (2397), 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) [2025-02-08 05:12:45,814 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:12:45,814 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] [2025-02-08 05:12:45,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 05:12:45,815 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2025-02-08 05:12:45,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:12:45,815 INFO L85 PathProgramCache]: Analyzing trace with hash 186008656, now seen corresponding path program 1 times [2025-02-08 05:12:45,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:12:45,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581770287] [2025-02-08 05:12:45,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:12:45,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:12:45,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-08 05:12:45,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-08 05:12:45,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:45,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:12:46,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:12:46,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:12:46,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581770287] [2025-02-08 05:12:46,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581770287] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:12:46,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:12:46,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:12:46,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630001697] [2025-02-08 05:12:46,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:12:46,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:12:46,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:12:46,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:12:46,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:12:47,095 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 508 [2025-02-08 05:12:47,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 452 transitions, 1166 flow. Second operand has 6 states, 6 states have (on average 399.6666666666667) internal successors, (2398), 6 states have internal predecessors, (2398), 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) [2025-02-08 05:12:47,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:12:47,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 508 [2025-02-08 05:12:47,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand