./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 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-race.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 e7fe0631e7f950e2868c8cb954edca4f6de3fdffbf6debba58771511fbac2e8b --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:12:19,748 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:12:19,792 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:12:19,795 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:12:19,796 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:12:19,820 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:12:19,822 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:12:19,822 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:12:19,822 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:12:19,823 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:12:19,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:12:19,823 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:12:19,823 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:12:19,823 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:12:19,825 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:12:19,825 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:12:19,825 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:12:19,825 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:12:19,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:12:19,825 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:12:19,825 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:12:19,825 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:12:19,825 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:12:19,825 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:12:19,825 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:12:19,825 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:12:19,825 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:12:19,826 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:12:19,826 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:12:19,826 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:12:19,826 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:12:19,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:12:19,826 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:12:19,826 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:12:19,826 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:12:19,826 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:12:19,826 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:12:19,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:12:19,826 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:12:19,826 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:12:19,826 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:12:19,826 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:12:19,826 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 -> e7fe0631e7f950e2868c8cb954edca4f6de3fdffbf6debba58771511fbac2e8b [2025-02-08 05:12:20,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:12:20,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:12:20,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:12:20,144 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:12:20,144 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:12:20,146 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i [2025-02-08 05:12:21,314 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/876d6f693/f6ae476ab0a34a8a91ce056f231f095a/FLAG57a0c8fe6 [2025-02-08 05:12:21,608 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:12:21,608 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i [2025-02-08 05:12:21,623 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/876d6f693/f6ae476ab0a34a8a91ce056f231f095a/FLAG57a0c8fe6 [2025-02-08 05:12:21,641 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/876d6f693/f6ae476ab0a34a8a91ce056f231f095a [2025-02-08 05:12:21,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:12:21,645 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:12:21,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:12:21,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:12:21,650 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:12:21,650 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:12:21" (1/1) ... [2025-02-08 05:12:21,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d4660c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:21, skipping insertion in model container [2025-02-08 05:12:21,652 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:12:21" (1/1) ... [2025-02-08 05:12:21,681 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:12:21,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:12:21,925 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:12:21,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:12:21,990 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:12:21,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:21 WrapperNode [2025-02-08 05:12:21,991 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:12:21,992 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:12:21,992 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:12:21,992 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:12:21,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:21" (1/1) ... [2025-02-08 05:12:22,006 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:21" (1/1) ... [2025-02-08 05:12:22,030 INFO L138 Inliner]: procedures = 170, calls = 33, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 246 [2025-02-08 05:12:22,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:12:22,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:12:22,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:12:22,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:12:22,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:21" (1/1) ... [2025-02-08 05:12:22,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:21" (1/1) ... [2025-02-08 05:12:22,047 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:21" (1/1) ... [2025-02-08 05:12:22,051 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:21" (1/1) ... [2025-02-08 05:12:22,059 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:21" (1/1) ... [2025-02-08 05:12:22,060 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:21" (1/1) ... [2025-02-08 05:12:22,062 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:21" (1/1) ... [2025-02-08 05:12:22,062 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:21" (1/1) ... [2025-02-08 05:12:22,067 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:12:22,068 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:12:22,068 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:12:22,068 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:12:22,069 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:21" (1/1) ... [2025-02-08 05:12:22,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:12:22,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:12:22,116 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 05:12:22,118 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 05:12:22,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-08 05:12:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-08 05:12:22,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-08 05:12:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-08 05:12:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:12:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 05:12:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 05:12:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:12:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:12:22,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:12:22,138 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 05:12:22,224 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:12:22,225 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:12:22,662 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:12:22,662 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:12:22,807 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:12:22,809 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:12:22,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:12:22 BoogieIcfgContainer [2025-02-08 05:12:22,810 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:12:22,811 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:12:22,812 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:12:22,815 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:12:22,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:12:21" (1/3) ... [2025-02-08 05:12:22,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65358fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:12:22, skipping insertion in model container [2025-02-08 05:12:22,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:21" (2/3) ... [2025-02-08 05:12:22,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65358fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:12:22, skipping insertion in model container [2025-02-08 05:12:22,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:12:22" (3/3) ... [2025-02-08 05:12:22,818 INFO L128 eAbstractionObserver]: Analyzing ICFG 36_stack_cas_p0_vs_concur-race.i [2025-02-08 05:12:22,827 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:12:22,830 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 36_stack_cas_p0_vs_concur-race.i that has 2 procedures, 209 locations, 1 initial locations, 3 loop locations, and 19 error locations. [2025-02-08 05:12:22,831 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:12:22,965 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:12:23,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 212 places, 215 transitions, 434 flow [2025-02-08 05:12:23,075 INFO L124 PetriNetUnfolderBase]: 6/222 cut-off events. [2025-02-08 05:12:23,077 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:12:23,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 222 events. 6/222 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 181 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 135. Up to 3 conditions per place. [2025-02-08 05:12:23,080 INFO L82 GeneralOperation]: Start removeDead. Operand has 212 places, 215 transitions, 434 flow [2025-02-08 05:12:23,083 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 212 places, 215 transitions, 434 flow [2025-02-08 05:12:23,088 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:12:23,095 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;@7407fa85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:12:23,095 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2025-02-08 05:12:23,108 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:12:23,109 INFO L124 PetriNetUnfolderBase]: 0/102 cut-off events. [2025-02-08 05:12:23,109 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:12:23,109 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:12:23,110 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 05:12:23,110 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 05:12:23,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:12:23,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1475746536, now seen corresponding path program 1 times [2025-02-08 05:12:23,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:12:23,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434996703] [2025-02-08 05:12:23,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:12:23,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:12:23,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-02-08 05:12:23,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-02-08 05:12:23,242 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:23,242 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:12:23,243 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:12:23,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-02-08 05:12:23,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-02-08 05:12:23,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:23,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:12:23,289 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:12:23,290 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:12:23,290 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2025-02-08 05:12:23,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2025-02-08 05:12:23,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2025-02-08 05:12:23,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2025-02-08 05:12:23,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2025-02-08 05:12:23,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2025-02-08 05:12:23,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2025-02-08 05:12:23,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2025-02-08 05:12:23,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2025-02-08 05:12:23,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2025-02-08 05:12:23,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2025-02-08 05:12:23,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2025-02-08 05:12:23,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2025-02-08 05:12:23,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2025-02-08 05:12:23,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2025-02-08 05:12:23,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2025-02-08 05:12:23,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2025-02-08 05:12:23,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2025-02-08 05:12:23,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2025-02-08 05:12:23,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2025-02-08 05:12:23,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2025-02-08 05:12:23,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2025-02-08 05:12:23,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2025-02-08 05:12:23,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2025-02-08 05:12:23,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2025-02-08 05:12:23,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2025-02-08 05:12:23,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2025-02-08 05:12:23,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2025-02-08 05:12:23,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2025-02-08 05:12:23,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2025-02-08 05:12:23,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2025-02-08 05:12:23,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2025-02-08 05:12:23,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2025-02-08 05:12:23,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2025-02-08 05:12:23,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2025-02-08 05:12:23,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2025-02-08 05:12:23,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2025-02-08 05:12:23,297 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2025-02-08 05:12:23,297 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2025-02-08 05:12:23,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:12:23,298 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 05:12:23,300 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:12:23,300 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-08 05:12:23,379 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:12:23,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 335 places, 342 transitions, 694 flow [2025-02-08 05:12:23,473 INFO L124 PetriNetUnfolderBase]: 12/358 cut-off events. [2025-02-08 05:12:23,474 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 05:12:23,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 358 events. 12/358 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 741 event pairs, 0 based on Foata normal form. 0/303 useless extension candidates. Maximal degree in co-relation 261. Up to 3 conditions per place. [2025-02-08 05:12:23,478 INFO L82 GeneralOperation]: Start removeDead. Operand has 335 places, 342 transitions, 694 flow [2025-02-08 05:12:23,481 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 335 places, 342 transitions, 694 flow [2025-02-08 05:12:23,482 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:12:23,482 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;@7407fa85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:12:23,482 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2025-02-08 05:12:23,491 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:12:23,491 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2025-02-08 05:12:23,491 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:12:23,491 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:12:23,491 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:12:23,491 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 05:12:23,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:12:23,492 INFO L85 PathProgramCache]: Analyzing trace with hash -2065548227, now seen corresponding path program 1 times [2025-02-08 05:12:23,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:12:23,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805064621] [2025-02-08 05:12:23,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:12:23,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:12:23,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-02-08 05:12:23,526 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-02-08 05:12:23,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:23,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:12:23,668 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 05:12:23,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:12:23,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805064621] [2025-02-08 05:12:23,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805064621] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:12:23,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:12:23,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 05:12:23,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592125521] [2025-02-08 05:12:23,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:12:23,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 05:12:23,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:12:23,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 05:12:23,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 05:12:23,700 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 342 [2025-02-08 05:12:23,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 342 transitions, 694 flow. Second operand has 2 states, 2 states have (on average 304.0) internal successors, (608), 2 states have internal predecessors, (608), 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 05:12:23,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:12:23,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 342 [2025-02-08 05:12:23,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:12:23,874 INFO L124 PetriNetUnfolderBase]: 14/466 cut-off events. [2025-02-08 05:12:23,875 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2025-02-08 05:12:23,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 466 events. 14/466 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1150 event pairs, 6 based on Foata normal form. 31/450 useless extension candidates. Maximal degree in co-relation 180. Up to 19 conditions per place. [2025-02-08 05:12:23,884 INFO L140 encePairwiseOnDemand]: 315/342 looper letters, 6 selfloop transitions, 0 changer transitions 0/262 dead transitions. [2025-02-08 05:12:23,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 262 transitions, 546 flow [2025-02-08 05:12:23,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 05:12:23,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-08 05:12:23,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 639 transitions. [2025-02-08 05:12:23,897 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9342105263157895 [2025-02-08 05:12:23,898 INFO L175 Difference]: Start difference. First operand has 335 places, 342 transitions, 694 flow. Second operand 2 states and 639 transitions. [2025-02-08 05:12:23,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 262 transitions, 546 flow [2025-02-08 05:12:23,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 262 transitions, 546 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:12:23,911 INFO L231 Difference]: Finished difference. Result has 264 places, 262 transitions, 534 flow [2025-02-08 05:12:23,913 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=534, PETRI_PLACES=264, PETRI_TRANSITIONS=262} [2025-02-08 05:12:23,917 INFO L279 CegarLoopForPetriNet]: 335 programPoint places, -71 predicate places. [2025-02-08 05:12:23,917 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 262 transitions, 534 flow [2025-02-08 05:12:23,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 304.0) internal successors, (608), 2 states have internal predecessors, (608), 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 05:12:23,918 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:12:23,918 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 05:12:23,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 05:12:23,919 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 05:12:23,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:12:23,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1194409646, now seen corresponding path program 1 times [2025-02-08 05:12:23,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:12:23,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887543495] [2025-02-08 05:12:23,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:12:23,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:12:23,964 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-08 05:12:23,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-08 05:12:23,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:23,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:12:23,993 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:12:24,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-08 05:12:24,022 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-08 05:12:24,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:24,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:12:24,037 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:12:24,038 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:12:24,042 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2025-02-08 05:12:24,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2025-02-08 05:12:24,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2025-02-08 05:12:24,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2025-02-08 05:12:24,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2025-02-08 05:12:24,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2025-02-08 05:12:24,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2025-02-08 05:12:24,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:12:24,045 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-08 05:12:24,046 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:12:24,046 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-08 05:12:24,127 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:12:24,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 458 places, 469 transitions, 956 flow [2025-02-08 05:12:24,232 INFO L124 PetriNetUnfolderBase]: 18/494 cut-off events. [2025-02-08 05:12:24,232 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-08 05:12:24,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 507 conditions, 494 events. 18/494 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1515 event pairs, 0 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 387. Up to 4 conditions per place. [2025-02-08 05:12:24,238 INFO L82 GeneralOperation]: Start removeDead. Operand has 458 places, 469 transitions, 956 flow [2025-02-08 05:12:24,242 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 458 places, 469 transitions, 956 flow [2025-02-08 05:12:24,243 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:12:24,244 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;@7407fa85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:12:24,244 INFO L334 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2025-02-08 05:12:24,253 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:12:24,253 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2025-02-08 05:12:24,253 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:12:24,253 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:12:24,253 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 05:12:24,253 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 05:12:24,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:12:24,254 INFO L85 PathProgramCache]: Analyzing trace with hash -590054181, now seen corresponding path program 1 times [2025-02-08 05:12:24,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:12:24,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83620496] [2025-02-08 05:12:24,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:12:24,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:12:24,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-02-08 05:12:24,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-02-08 05:12:24,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:24,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:12:24,352 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 05:12:24,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:12:24,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83620496] [2025-02-08 05:12:24,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83620496] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:12:24,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:12:24,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 05:12:24,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953457635] [2025-02-08 05:12:24,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:12:24,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 05:12:24,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:12:24,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 05:12:24,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 05:12:24,355 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 469 [2025-02-08 05:12:24,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 469 transitions, 956 flow. Second operand has 2 states, 2 states have (on average 412.0) internal successors, (824), 2 states have internal predecessors, (824), 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 05:12:24,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:12:24,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 469 [2025-02-08 05:12:24,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:12:24,774 INFO L124 PetriNetUnfolderBase]: 68/1354 cut-off events. [2025-02-08 05:12:24,774 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2025-02-08 05:12:24,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1487 conditions, 1354 events. 68/1354 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 7441 event pairs, 42 based on Foata normal form. 126/1321 useless extension candidates. Maximal degree in co-relation 492. Up to 82 conditions per place. [2025-02-08 05:12:24,790 INFO L140 encePairwiseOnDemand]: 429/469 looper letters, 9 selfloop transitions, 0 changer transitions 0/351 dead transitions. [2025-02-08 05:12:24,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 351 transitions, 738 flow [2025-02-08 05:12:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 05:12:24,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-08 05:12:24,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 871 transitions. [2025-02-08 05:12:24,795 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9285714285714286 [2025-02-08 05:12:24,795 INFO L175 Difference]: Start difference. First operand has 458 places, 469 transitions, 956 flow. Second operand 2 states and 871 transitions. [2025-02-08 05:12:24,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 351 transitions, 738 flow [2025-02-08 05:12:24,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 351 transitions, 736 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-02-08 05:12:24,809 INFO L231 Difference]: Finished difference. Result has 353 places, 351 transitions, 718 flow [2025-02-08 05:12:24,809 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=469, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=718, PETRI_PLACES=353, PETRI_TRANSITIONS=351} [2025-02-08 05:12:24,809 INFO L279 CegarLoopForPetriNet]: 458 programPoint places, -105 predicate places. [2025-02-08 05:12:24,810 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 351 transitions, 718 flow [2025-02-08 05:12:24,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 412.0) internal successors, (824), 2 states have internal predecessors, (824), 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 05:12:24,810 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:12:24,810 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 05:12:24,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 05:12:24,810 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 05:12:24,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:12:24,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1731700667, now seen corresponding path program 1 times [2025-02-08 05:12:24,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:12:24,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794523276] [2025-02-08 05:12:24,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:12:24,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:12:24,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-02-08 05:12:24,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-02-08 05:12:24,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:24,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:12:25,490 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 05:12:25,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:12:25,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794523276] [2025-02-08 05:12:25,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794523276] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:12:25,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:12:25,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:12:25,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683806847] [2025-02-08 05:12:25,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:12:25,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:12:25,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:12:25,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:12:25,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:12:26,343 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 469 [2025-02-08 05:12:26,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 351 transitions, 718 flow. Second operand has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 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 05:12:26,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:12:26,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 469 [2025-02-08 05:12:26,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:12:28,300 INFO L124 PetriNetUnfolderBase]: 1134/11509 cut-off events. [2025-02-08 05:12:28,300 INFO L125 PetriNetUnfolderBase]: For 628/628 co-relation queries the response was YES. [2025-02-08 05:12:28,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13635 conditions, 11509 events. 1134/11509 cut-off events. For 628/628 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 134018 event pairs, 245 based on Foata normal form. 0/10023 useless extension candidates. Maximal degree in co-relation 13629. Up to 1045 conditions per place. [2025-02-08 05:12:28,383 INFO L140 encePairwiseOnDemand]: 440/469 looper letters, 52 selfloop transitions, 37 changer transitions 0/404 dead transitions. [2025-02-08 05:12:28,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 404 transitions, 1042 flow [2025-02-08 05:12:28,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:12:28,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:12:28,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2385 transitions. [2025-02-08 05:12:28,389 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.847547974413646 [2025-02-08 05:12:28,390 INFO L175 Difference]: Start difference. First operand has 353 places, 351 transitions, 718 flow. Second operand 6 states and 2385 transitions. [2025-02-08 05:12:28,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 404 transitions, 1042 flow [2025-02-08 05:12:28,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 404 transitions, 1042 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:12:28,399 INFO L231 Difference]: Finished difference. Result has 363 places, 387 transitions, 994 flow [2025-02-08 05:12:28,399 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=469, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=994, PETRI_PLACES=363, PETRI_TRANSITIONS=387} [2025-02-08 05:12:28,401 INFO L279 CegarLoopForPetriNet]: 458 programPoint places, -95 predicate places. [2025-02-08 05:12:28,401 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 387 transitions, 994 flow [2025-02-08 05:12:28,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 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 05:12:28,402 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:12:28,403 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 05:12:28,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 05:12:28,403 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 05:12:28,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:12:28,404 INFO L85 PathProgramCache]: Analyzing trace with hash 959591689, now seen corresponding path program 1 times [2025-02-08 05:12:28,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:12:28,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885941894] [2025-02-08 05:12:28,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:12:28,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:12:28,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-02-08 05:12:28,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-02-08 05:12:28,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:28,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:12:28,431 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:12:28,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-02-08 05:12:28,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-02-08 05:12:28,446 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:28,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:12:28,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:12:28,461 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:12:28,462 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (76 of 77 remaining) [2025-02-08 05:12:28,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (75 of 77 remaining) [2025-02-08 05:12:28,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (74 of 77 remaining) [2025-02-08 05:12:28,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (73 of 77 remaining) [2025-02-08 05:12:28,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (72 of 77 remaining) [2025-02-08 05:12:28,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (71 of 77 remaining) [2025-02-08 05:12:28,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (70 of 77 remaining) [2025-02-08 05:12:28,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (69 of 77 remaining) [2025-02-08 05:12:28,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (68 of 77 remaining) [2025-02-08 05:12:28,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 77 remaining) [2025-02-08 05:12:28,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (66 of 77 remaining) [2025-02-08 05:12:28,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (65 of 77 remaining) [2025-02-08 05:12:28,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (64 of 77 remaining) [2025-02-08 05:12:28,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (63 of 77 remaining) [2025-02-08 05:12:28,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (62 of 77 remaining) [2025-02-08 05:12:28,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (61 of 77 remaining) [2025-02-08 05:12:28,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (60 of 77 remaining) [2025-02-08 05:12:28,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (59 of 77 remaining) [2025-02-08 05:12:28,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (58 of 77 remaining) [2025-02-08 05:12:28,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (57 of 77 remaining) [2025-02-08 05:12:28,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (56 of 77 remaining) [2025-02-08 05:12:28,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (55 of 77 remaining) [2025-02-08 05:12:28,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (54 of 77 remaining) [2025-02-08 05:12:28,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (53 of 77 remaining) [2025-02-08 05:12:28,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (52 of 77 remaining) [2025-02-08 05:12:28,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (51 of 77 remaining) [2025-02-08 05:12:28,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (50 of 77 remaining) [2025-02-08 05:12:28,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (49 of 77 remaining) [2025-02-08 05:12:28,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (48 of 77 remaining) [2025-02-08 05:12:28,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 77 remaining) [2025-02-08 05:12:28,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (46 of 77 remaining) [2025-02-08 05:12:28,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (45 of 77 remaining) [2025-02-08 05:12:28,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (42 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (36 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (32 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (26 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (17 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (16 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 77 remaining) [2025-02-08 05:12:28,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 77 remaining) [2025-02-08 05:12:28,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 77 remaining) [2025-02-08 05:12:28,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 77 remaining) [2025-02-08 05:12:28,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 77 remaining) [2025-02-08 05:12:28,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 77 remaining) [2025-02-08 05:12:28,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 77 remaining) [2025-02-08 05:12:28,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 77 remaining) [2025-02-08 05:12:28,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 77 remaining) [2025-02-08 05:12:28,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 77 remaining) [2025-02-08 05:12:28,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 05:12:28,466 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-08 05:12:28,466 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:12:28,470 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-02-08 05:12:28,584 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:12:28,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 581 places, 596 transitions, 1220 flow [2025-02-08 05:12:28,661 INFO L124 PetriNetUnfolderBase]: 24/630 cut-off events. [2025-02-08 05:12:28,661 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-08 05:12:28,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 649 conditions, 630 events. 24/630 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2362 event pairs, 0 based on Foata normal form. 0/521 useless extension candidates. Maximal degree in co-relation 513. Up to 5 conditions per place. [2025-02-08 05:12:28,669 INFO L82 GeneralOperation]: Start removeDead. Operand has 581 places, 596 transitions, 1220 flow [2025-02-08 05:12:28,676 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 581 places, 596 transitions, 1220 flow [2025-02-08 05:12:28,677 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:12:28,678 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;@7407fa85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:12:28,678 INFO L334 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2025-02-08 05:12:28,682 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:12:28,682 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2025-02-08 05:12:28,682 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:12:28,682 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:12:28,682 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 05:12:28,682 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 05:12:28,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:12:28,683 INFO L85 PathProgramCache]: Analyzing trace with hash -76015911, now seen corresponding path program 1 times [2025-02-08 05:12:28,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:12:28,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024477985] [2025-02-08 05:12:28,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:12:28,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:12:28,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-02-08 05:12:28,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-02-08 05:12:28,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:28,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:12:28,728 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 05:12:28,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:12:28,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024477985] [2025-02-08 05:12:28,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024477985] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:12:28,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:12:28,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 05:12:28,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818591207] [2025-02-08 05:12:28,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:12:28,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 05:12:28,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:12:28,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 05:12:28,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 05:12:28,731 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 519 out of 596 [2025-02-08 05:12:28,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 596 transitions, 1220 flow. Second operand has 2 states, 2 states have (on average 520.0) internal successors, (1040), 2 states have internal predecessors, (1040), 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 05:12:28,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:12:28,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 519 of 596 [2025-02-08 05:12:28,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:12:29,623 INFO L124 PetriNetUnfolderBase]: 284/4072 cut-off events. [2025-02-08 05:12:29,623 INFO L125 PetriNetUnfolderBase]: For 496/496 co-relation queries the response was YES. [2025-02-08 05:12:29,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4584 conditions, 4072 events. 284/4072 cut-off events. For 496/496 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 34245 event pairs, 204 based on Foata normal form. 491/4060 useless extension candidates. Maximal degree in co-relation 1473. Up to 325 conditions per place. [2025-02-08 05:12:29,696 INFO L140 encePairwiseOnDemand]: 543/596 looper letters, 12 selfloop transitions, 0 changer transitions 0/440 dead transitions. [2025-02-08 05:12:29,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 440 transitions, 932 flow [2025-02-08 05:12:29,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 05:12:29,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-08 05:12:29,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1103 transitions. [2025-02-08 05:12:29,701 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9253355704697986 [2025-02-08 05:12:29,701 INFO L175 Difference]: Start difference. First operand has 581 places, 596 transitions, 1220 flow. Second operand 2 states and 1103 transitions. [2025-02-08 05:12:29,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 440 transitions, 932 flow [2025-02-08 05:12:29,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 440 transitions, 926 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-02-08 05:12:29,707 INFO L231 Difference]: Finished difference. Result has 442 places, 440 transitions, 902 flow [2025-02-08 05:12:29,708 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=902, PETRI_PLACES=442, PETRI_TRANSITIONS=440} [2025-02-08 05:12:29,708 INFO L279 CegarLoopForPetriNet]: 581 programPoint places, -139 predicate places. [2025-02-08 05:12:29,708 INFO L471 AbstractCegarLoop]: Abstraction has has 442 places, 440 transitions, 902 flow [2025-02-08 05:12:29,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 520.0) internal successors, (1040), 2 states have internal predecessors, (1040), 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 05:12:29,709 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:12:29,709 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 05:12:29,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 05:12:29,709 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 05:12:29,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:12:29,710 INFO L85 PathProgramCache]: Analyzing trace with hash 2120323, now seen corresponding path program 1 times [2025-02-08 05:12:29,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:12:29,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393784841] [2025-02-08 05:12:29,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:12:29,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:12:29,728 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-02-08 05:12:29,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-02-08 05:12:29,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:29,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:12:30,081 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 05:12:30,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:12:30,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393784841] [2025-02-08 05:12:30,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393784841] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:12:30,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:12:30,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:12:30,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782644134] [2025-02-08 05:12:30,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:12:30,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:12:30,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:12:30,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:12:30,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:12:31,065 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 490 out of 596 [2025-02-08 05:12:31,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 440 transitions, 902 flow. Second operand has 6 states, 6 states have (on average 491.5) internal successors, (2949), 6 states have internal predecessors, (2949), 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 05:12:31,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:12:31,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 490 of 596 [2025-02-08 05:12:31,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:12:37,864 INFO L124 PetriNetUnfolderBase]: 5276/41560 cut-off events. [2025-02-08 05:12:37,864 INFO L125 PetriNetUnfolderBase]: For 2926/2926 co-relation queries the response was YES. [2025-02-08 05:12:38,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50350 conditions, 41560 events. 5276/41560 cut-off events. For 2926/2926 co-relation queries the response was YES. Maximal size of possible extension queue 742. Compared 593091 event pairs, 1475 based on Foata normal form. 0/36188 useless extension candidates. Maximal degree in co-relation 50343. Up to 4964 conditions per place. [2025-02-08 05:12:38,443 INFO L140 encePairwiseOnDemand]: 565/596 looper letters, 59 selfloop transitions, 45 changer transitions 0/505 dead transitions. [2025-02-08 05:12:38,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 505 transitions, 1300 flow [2025-02-08 05:12:38,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:12:38,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:12:38,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3048 transitions. [2025-02-08 05:12:38,450 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8523489932885906 [2025-02-08 05:12:38,450 INFO L175 Difference]: Start difference. First operand has 442 places, 440 transitions, 902 flow. Second operand 6 states and 3048 transitions. [2025-02-08 05:12:38,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 505 transitions, 1300 flow [2025-02-08 05:12:38,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 505 transitions, 1300 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:12:38,467 INFO L231 Difference]: Finished difference. Result has 452 places, 484 transitions, 1230 flow [2025-02-08 05:12:38,467 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1230, PETRI_PLACES=452, PETRI_TRANSITIONS=484} [2025-02-08 05:12:38,470 INFO L279 CegarLoopForPetriNet]: 581 programPoint places, -129 predicate places. [2025-02-08 05:12:38,470 INFO L471 AbstractCegarLoop]: Abstraction has has 452 places, 484 transitions, 1230 flow [2025-02-08 05:12:38,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 491.5) internal successors, (2949), 6 states have internal predecessors, (2949), 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 05:12:38,471 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:12:38,471 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 05:12:38,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 05:12:38,472 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 05:12:38,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:12:38,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1148021283, now seen corresponding path program 1 times [2025-02-08 05:12:38,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:12:38,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099629244] [2025-02-08 05:12:38,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:12:38,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:12:38,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-08 05:12:38,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-08 05:12:38,505 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:12:38,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:12:38,886 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 05:12:38,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:12:38,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099629244] [2025-02-08 05:12:38,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099629244] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:12:38,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:12:38,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:12:38,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515720992] [2025-02-08 05:12:38,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:12:38,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:12:38,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:12:38,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:12:38,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:12:39,822 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 490 out of 596 [2025-02-08 05:12:39,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 484 transitions, 1230 flow. Second operand has 6 states, 6 states have (on average 491.6666666666667) internal successors, (2950), 6 states have internal predecessors, (2950), 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 05:12:39,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:12:39,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 490 of 596 [2025-02-08 05:12:39,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand