./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c --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/weaver/parallel-barrier-loop.wvr.c -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 a107795e01eed1ee79fba30cb5022ee32b5d5a3711e8a094ab0bb165fd3efa7a --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:39:02,791 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:39:02,833 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:39:02,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:39:02,836 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:39:02,848 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:39:02,848 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:39:02,848 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:39:02,849 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:39:02,849 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:39:02,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:39:02,849 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:39:02,849 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:39:02,849 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:39:02,849 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:39:02,849 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:39:02,849 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:39:02,849 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:39:02,849 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:39:02,849 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:39:02,849 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:39:02,849 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:39:02,850 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:39:02,850 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:39:02,850 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:39:02,850 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:39:02,850 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:39:02,850 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:39:02,850 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:39:02,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:39:02,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:39:02,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:39:02,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:39:02,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:39:02,850 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:39:02,850 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:39:02,850 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:39:02,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:39:02,850 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:39:02,850 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:39:02,850 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:39:02,850 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:39:02,851 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 -> a107795e01eed1ee79fba30cb5022ee32b5d5a3711e8a094ab0bb165fd3efa7a [2025-02-08 05:39:03,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:39:03,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:39:03,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:39:03,049 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:39:03,049 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:39:03,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2025-02-08 05:39:04,140 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a162b545f/82dec4dbda3f4887a1cf43c5e7501d11/FLAG4cd442d13 [2025-02-08 05:39:04,385 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:39:04,386 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2025-02-08 05:39:04,393 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a162b545f/82dec4dbda3f4887a1cf43c5e7501d11/FLAG4cd442d13 [2025-02-08 05:39:04,700 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a162b545f/82dec4dbda3f4887a1cf43c5e7501d11 [2025-02-08 05:39:04,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:39:04,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:39:04,707 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:39:04,708 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:39:04,711 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:39:04,711 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:39:04" (1/1) ... [2025-02-08 05:39:04,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@503fb929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:04, skipping insertion in model container [2025-02-08 05:39:04,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:39:04" (1/1) ... [2025-02-08 05:39:04,727 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:39:04,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:39:04,859 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:39:04,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:39:04,901 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:39:04,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:04 WrapperNode [2025-02-08 05:39:04,901 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:39:04,902 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:39:04,902 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:39:04,902 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:39:04,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:04" (1/1) ... [2025-02-08 05:39:04,914 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:04" (1/1) ... [2025-02-08 05:39:04,938 INFO L138 Inliner]: procedures = 22, calls = 23, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 305 [2025-02-08 05:39:04,939 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:39:04,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:39:04,939 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:39:04,939 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:39:04,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:04" (1/1) ... [2025-02-08 05:39:04,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:04" (1/1) ... [2025-02-08 05:39:04,951 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:04" (1/1) ... [2025-02-08 05:39:04,951 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:04" (1/1) ... [2025-02-08 05:39:04,960 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:04" (1/1) ... [2025-02-08 05:39:04,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:04" (1/1) ... [2025-02-08 05:39:04,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:04" (1/1) ... [2025-02-08 05:39:04,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:04" (1/1) ... [2025-02-08 05:39:04,971 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:39:04,972 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:39:04,972 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:39:04,972 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:39:04,975 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:04" (1/1) ... [2025-02-08 05:39:04,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:39:04,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:39:04,999 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 05:39:05,003 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 05:39:05,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:39:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 05:39:05,020 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 05:39:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 05:39:05,020 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 05:39:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 05:39:05,020 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 05:39:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-08 05:39:05,020 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-08 05:39:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:39:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-08 05:39:05,021 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-08 05:39:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-02-08 05:39:05,022 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-02-08 05:39:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:39:05,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:39:05,023 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 05:39:05,107 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:39:05,108 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:39:05,461 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:39:05,461 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:39:05,499 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:39:05,502 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:39:05,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:39:05 BoogieIcfgContainer [2025-02-08 05:39:05,504 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:39:05,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:39:05,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:39:05,509 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:39:05,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:39:04" (1/3) ... [2025-02-08 05:39:05,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc6e203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:39:05, skipping insertion in model container [2025-02-08 05:39:05,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:39:04" (2/3) ... [2025-02-08 05:39:05,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc6e203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:39:05, skipping insertion in model container [2025-02-08 05:39:05,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:39:05" (3/3) ... [2025-02-08 05:39:05,513 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-barrier-loop.wvr.c [2025-02-08 05:39:05,523 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:39:05,527 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-barrier-loop.wvr.c that has 7 procedures, 379 locations, 1 initial locations, 4 loop locations, and 24 error locations. [2025-02-08 05:39:05,527 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:39:05,639 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2025-02-08 05:39:05,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 405 places, 408 transitions, 882 flow [2025-02-08 05:39:05,794 INFO L124 PetriNetUnfolderBase]: 22/394 cut-off events. [2025-02-08 05:39:05,795 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-08 05:39:05,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 423 conditions, 394 events. 22/394 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 935 event pairs, 0 based on Foata normal form. 0/348 useless extension candidates. Maximal degree in co-relation 335. Up to 3 conditions per place. [2025-02-08 05:39:05,802 INFO L82 GeneralOperation]: Start removeDead. Operand has 405 places, 408 transitions, 882 flow [2025-02-08 05:39:05,807 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 375 places, 377 transitions, 799 flow [2025-02-08 05:39:05,813 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:39:05,823 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;@527c9fd5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:39:05,825 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2025-02-08 05:39:05,833 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:39:05,836 INFO L124 PetriNetUnfolderBase]: 0/43 cut-off events. [2025-02-08 05:39:05,836 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:39:05,836 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:39:05,837 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] [2025-02-08 05:39:05,837 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-08 05:39:05,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:39:05,842 INFO L85 PathProgramCache]: Analyzing trace with hash -2097858830, now seen corresponding path program 1 times [2025-02-08 05:39:05,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:39:05,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664829467] [2025-02-08 05:39:05,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:39:05,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:39:05,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-08 05:39:05,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-08 05:39:05,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:39:05,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:39:05,964 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 05:39:05,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:39:05,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664829467] [2025-02-08 05:39:05,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664829467] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:39:05,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:39:05,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:39:05,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700234333] [2025-02-08 05:39:05,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:39:05,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:39:05,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:39:05,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:39:05,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:39:06,026 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2025-02-08 05:39:06,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 377 transitions, 799 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 05:39:06,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:39:06,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2025-02-08 05:39:06,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:39:10,841 INFO L124 PetriNetUnfolderBase]: 7436/38733 cut-off events. [2025-02-08 05:39:10,842 INFO L125 PetriNetUnfolderBase]: For 4083/4083 co-relation queries the response was YES. [2025-02-08 05:39:11,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51805 conditions, 38733 events. 7436/38733 cut-off events. For 4083/4083 co-relation queries the response was YES. Maximal size of possible extension queue 767. Compared 530486 event pairs, 4596 based on Foata normal form. 3874/35792 useless extension candidates. Maximal degree in co-relation 50913. Up to 9448 conditions per place. [2025-02-08 05:39:11,241 INFO L140 encePairwiseOnDemand]: 396/412 looper letters, 48 selfloop transitions, 2 changer transitions 1/363 dead transitions. [2025-02-08 05:39:11,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 363 transitions, 871 flow [2025-02-08 05:39:11,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:39:11,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:39:11,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1072 transitions. [2025-02-08 05:39:11,253 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8673139158576052 [2025-02-08 05:39:11,255 INFO L175 Difference]: Start difference. First operand has 375 places, 377 transitions, 799 flow. Second operand 3 states and 1072 transitions. [2025-02-08 05:39:11,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 363 transitions, 871 flow [2025-02-08 05:39:11,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 363 transitions, 842 flow, removed 0 selfloop flow, removed 11 redundant places. [2025-02-08 05:39:11,300 INFO L231 Difference]: Finished difference. Result has 365 places, 362 transitions, 744 flow [2025-02-08 05:39:11,303 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=742, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=744, PETRI_PLACES=365, PETRI_TRANSITIONS=362} [2025-02-08 05:39:11,305 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -10 predicate places. [2025-02-08 05:39:11,305 INFO L471 AbstractCegarLoop]: Abstraction has has 365 places, 362 transitions, 744 flow [2025-02-08 05:39:11,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 05:39:11,306 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:39:11,306 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] [2025-02-08 05:39:11,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:39:11,307 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-08 05:39:11,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:39:11,307 INFO L85 PathProgramCache]: Analyzing trace with hash -2031014513, now seen corresponding path program 1 times [2025-02-08 05:39:11,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:39:11,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145831155] [2025-02-08 05:39:11,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:39:11,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:39:11,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-08 05:39:11,320 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-08 05:39:11,320 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:39:11,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:39:11,372 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 05:39:11,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:39:11,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145831155] [2025-02-08 05:39:11,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145831155] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:39:11,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:39:11,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:39:11,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888399238] [2025-02-08 05:39:11,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:39:11,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:39:11,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:39:11,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:39:11,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:39:11,398 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2025-02-08 05:39:11,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 362 transitions, 744 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 05:39:11,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:39:11,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2025-02-08 05:39:11,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:39:15,894 INFO L124 PetriNetUnfolderBase]: 7436/39583 cut-off events. [2025-02-08 05:39:15,894 INFO L125 PetriNetUnfolderBase]: For 1130/1130 co-relation queries the response was YES. [2025-02-08 05:39:16,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49802 conditions, 39583 events. 7436/39583 cut-off events. For 1130/1130 co-relation queries the response was YES. Maximal size of possible extension queue 771. Compared 547652 event pairs, 4596 based on Foata normal form. 0/32443 useless extension candidates. Maximal degree in co-relation 49747. Up to 9478 conditions per place. [2025-02-08 05:39:16,167 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/361 dead transitions. [2025-02-08 05:39:16,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 361 transitions, 842 flow [2025-02-08 05:39:16,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:39:16,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:39:16,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2025-02-08 05:39:16,170 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2025-02-08 05:39:16,170 INFO L175 Difference]: Start difference. First operand has 365 places, 362 transitions, 744 flow. Second operand 3 states and 1059 transitions. [2025-02-08 05:39:16,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 361 transitions, 842 flow [2025-02-08 05:39:16,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 361 transitions, 838 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:39:16,175 INFO L231 Difference]: Finished difference. Result has 363 places, 361 transitions, 742 flow [2025-02-08 05:39:16,175 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=742, PETRI_PLACES=363, PETRI_TRANSITIONS=361} [2025-02-08 05:39:16,176 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -12 predicate places. [2025-02-08 05:39:16,176 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 361 transitions, 742 flow [2025-02-08 05:39:16,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 05:39:16,177 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:39:16,177 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] [2025-02-08 05:39:16,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 05:39:16,177 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-08 05:39:16,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:39:16,177 INFO L85 PathProgramCache]: Analyzing trace with hash -663420953, now seen corresponding path program 1 times [2025-02-08 05:39:16,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:39:16,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714702575] [2025-02-08 05:39:16,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:39:16,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:39:16,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-02-08 05:39:16,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-02-08 05:39:16,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:39:16,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:39:16,215 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 05:39:16,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:39:16,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714702575] [2025-02-08 05:39:16,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714702575] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:39:16,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:39:16,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:39:16,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996387944] [2025-02-08 05:39:16,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:39:16,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:39:16,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:39:16,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:39:16,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:39:16,241 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2025-02-08 05:39:16,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 361 transitions, 742 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 05:39:16,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:39:16,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2025-02-08 05:39:16,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:39:20,297 INFO L124 PetriNetUnfolderBase]: 7676/38535 cut-off events. [2025-02-08 05:39:20,298 INFO L125 PetriNetUnfolderBase]: For 1288/1288 co-relation queries the response was YES. [2025-02-08 05:39:20,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48904 conditions, 38535 events. 7676/38535 cut-off events. For 1288/1288 co-relation queries the response was YES. Maximal size of possible extension queue 794. Compared 525805 event pairs, 4596 based on Foata normal form. 0/31649 useless extension candidates. Maximal degree in co-relation 48842. Up to 9708 conditions per place. [2025-02-08 05:39:20,529 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/360 dead transitions. [2025-02-08 05:39:20,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 360 transitions, 840 flow [2025-02-08 05:39:20,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:39:20,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:39:20,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2025-02-08 05:39:20,533 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2025-02-08 05:39:20,533 INFO L175 Difference]: Start difference. First operand has 363 places, 361 transitions, 742 flow. Second operand 3 states and 1059 transitions. [2025-02-08 05:39:20,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 360 transitions, 840 flow [2025-02-08 05:39:20,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 360 transitions, 836 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:39:20,537 INFO L231 Difference]: Finished difference. Result has 362 places, 360 transitions, 740 flow [2025-02-08 05:39:20,537 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=740, PETRI_PLACES=362, PETRI_TRANSITIONS=360} [2025-02-08 05:39:20,538 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -13 predicate places. [2025-02-08 05:39:20,538 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 360 transitions, 740 flow [2025-02-08 05:39:20,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 05:39:20,539 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:39:20,539 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] [2025-02-08 05:39:20,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:39:20,539 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-08 05:39:20,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:39:20,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1863108195, now seen corresponding path program 1 times [2025-02-08 05:39:20,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:39:20,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899404653] [2025-02-08 05:39:20,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:39:20,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:39:20,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-02-08 05:39:20,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-02-08 05:39:20,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:39:20,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:39:20,582 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 05:39:20,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:39:20,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899404653] [2025-02-08 05:39:20,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899404653] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:39:20,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:39:20,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:39:20,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027165007] [2025-02-08 05:39:20,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:39:20,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:39:20,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:39:20,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:39:20,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:39:20,600 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2025-02-08 05:39:20,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 360 transitions, 740 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 05:39:20,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:39:20,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2025-02-08 05:39:20,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:39:25,326 INFO L124 PetriNetUnfolderBase]: 7676/38807 cut-off events. [2025-02-08 05:39:25,327 INFO L125 PetriNetUnfolderBase]: For 1290/1290 co-relation queries the response was YES. [2025-02-08 05:39:25,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49186 conditions, 38807 events. 7676/38807 cut-off events. For 1290/1290 co-relation queries the response was YES. Maximal size of possible extension queue 755. Compared 530155 event pairs, 4596 based on Foata normal form. 0/31588 useless extension candidates. Maximal degree in co-relation 49117. Up to 9718 conditions per place. [2025-02-08 05:39:25,702 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/359 dead transitions. [2025-02-08 05:39:25,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 359 transitions, 838 flow [2025-02-08 05:39:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:39:25,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:39:25,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2025-02-08 05:39:25,708 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2025-02-08 05:39:25,708 INFO L175 Difference]: Start difference. First operand has 362 places, 360 transitions, 740 flow. Second operand 3 states and 1059 transitions. [2025-02-08 05:39:25,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 359 transitions, 838 flow [2025-02-08 05:39:25,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 359 transitions, 834 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:39:25,715 INFO L231 Difference]: Finished difference. Result has 361 places, 359 transitions, 738 flow [2025-02-08 05:39:25,716 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=734, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=738, PETRI_PLACES=361, PETRI_TRANSITIONS=359} [2025-02-08 05:39:25,716 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -14 predicate places. [2025-02-08 05:39:25,716 INFO L471 AbstractCegarLoop]: Abstraction has has 361 places, 359 transitions, 738 flow [2025-02-08 05:39:25,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 05:39:25,717 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:39:25,717 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] [2025-02-08 05:39:25,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 05:39:25,717 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-08 05:39:25,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:39:25,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1130218005, now seen corresponding path program 1 times [2025-02-08 05:39:25,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:39:25,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170988654] [2025-02-08 05:39:25,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:39:25,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:39:25,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-08 05:39:25,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-08 05:39:25,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:39:25,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:39:25,807 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 05:39:25,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:39:25,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170988654] [2025-02-08 05:39:25,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170988654] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:39:25,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:39:25,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:39:25,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452428443] [2025-02-08 05:39:25,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:39:25,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:39:25,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:39:25,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:39:25,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:39:25,831 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2025-02-08 05:39:25,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 359 transitions, 738 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 05:39:25,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:39:25,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2025-02-08 05:39:25,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:39:30,057 INFO L124 PetriNetUnfolderBase]: 7436/38568 cut-off events. [2025-02-08 05:39:30,058 INFO L125 PetriNetUnfolderBase]: For 1142/1142 co-relation queries the response was YES. [2025-02-08 05:39:30,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48735 conditions, 38568 events. 7436/38568 cut-off events. For 1142/1142 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 528814 event pairs, 4596 based on Foata normal form. 0/31804 useless extension candidates. Maximal degree in co-relation 48659. Up to 9450 conditions per place. [2025-02-08 05:39:30,332 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/358 dead transitions. [2025-02-08 05:39:30,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 358 transitions, 836 flow [2025-02-08 05:39:30,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:39:30,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:39:30,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2025-02-08 05:39:30,337 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2025-02-08 05:39:30,338 INFO L175 Difference]: Start difference. First operand has 361 places, 359 transitions, 738 flow. Second operand 3 states and 1059 transitions. [2025-02-08 05:39:30,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 358 transitions, 836 flow [2025-02-08 05:39:30,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 358 transitions, 832 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:39:30,342 INFO L231 Difference]: Finished difference. Result has 360 places, 358 transitions, 736 flow [2025-02-08 05:39:30,342 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=736, PETRI_PLACES=360, PETRI_TRANSITIONS=358} [2025-02-08 05:39:30,345 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -15 predicate places. [2025-02-08 05:39:30,345 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 358 transitions, 736 flow [2025-02-08 05:39:30,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 05:39:30,348 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:39:30,348 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] [2025-02-08 05:39:30,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 05:39:30,349 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-08 05:39:30,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:39:30,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1754022976, now seen corresponding path program 1 times [2025-02-08 05:39:30,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:39:30,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638077358] [2025-02-08 05:39:30,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:39:30,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:39:30,358 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-02-08 05:39:30,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-02-08 05:39:30,365 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:39:30,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:39:30,404 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 05:39:30,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:39:30,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638077358] [2025-02-08 05:39:30,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638077358] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:39:30,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:39:30,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:39:30,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118996312] [2025-02-08 05:39:30,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:39:30,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:39:30,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:39:30,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:39:30,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:39:30,419 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2025-02-08 05:39:30,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 358 transitions, 736 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 05:39:30,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:39:30,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2025-02-08 05:39:30,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:39:34,940 INFO L124 PetriNetUnfolderBase]: 7436/39249 cut-off events. [2025-02-08 05:39:34,941 INFO L125 PetriNetUnfolderBase]: For 1142/1142 co-relation queries the response was YES. [2025-02-08 05:39:35,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49444 conditions, 39249 events. 7436/39249 cut-off events. For 1142/1142 co-relation queries the response was YES. Maximal size of possible extension queue 775. Compared 542117 event pairs, 4596 based on Foata normal form. 0/32120 useless extension candidates. Maximal degree in co-relation 49361. Up to 9478 conditions per place. [2025-02-08 05:39:35,224 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/357 dead transitions. [2025-02-08 05:39:35,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 357 transitions, 834 flow [2025-02-08 05:39:35,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:39:35,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:39:35,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2025-02-08 05:39:35,226 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2025-02-08 05:39:35,226 INFO L175 Difference]: Start difference. First operand has 360 places, 358 transitions, 736 flow. Second operand 3 states and 1059 transitions. [2025-02-08 05:39:35,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 357 transitions, 834 flow [2025-02-08 05:39:35,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 357 transitions, 830 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:39:35,230 INFO L231 Difference]: Finished difference. Result has 359 places, 357 transitions, 734 flow [2025-02-08 05:39:35,231 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=734, PETRI_PLACES=359, PETRI_TRANSITIONS=357} [2025-02-08 05:39:35,231 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -16 predicate places. [2025-02-08 05:39:35,231 INFO L471 AbstractCegarLoop]: Abstraction has has 359 places, 357 transitions, 734 flow [2025-02-08 05:39:35,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 05:39:35,232 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:39:35,232 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] [2025-02-08 05:39:35,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 05:39:35,232 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-08 05:39:35,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:39:35,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1952052191, now seen corresponding path program 1 times [2025-02-08 05:39:35,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:39:35,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247731393] [2025-02-08 05:39:35,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:39:35,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:39:35,238 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-02-08 05:39:35,240 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-02-08 05:39:35,240 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:39:35,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:39:35,259 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 05:39:35,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:39:35,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247731393] [2025-02-08 05:39:35,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247731393] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:39:35,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:39:35,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:39:35,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530178905] [2025-02-08 05:39:35,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:39:35,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:39:35,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:39:35,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:39:35,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:39:35,275 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2025-02-08 05:39:35,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 357 transitions, 734 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 05:39:35,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:39:35,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2025-02-08 05:39:35,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:39:39,604 INFO L124 PetriNetUnfolderBase]: 7676/38233 cut-off events. [2025-02-08 05:39:39,604 INFO L125 PetriNetUnfolderBase]: For 1302/1302 co-relation queries the response was YES. [2025-02-08 05:39:39,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48586 conditions, 38233 events. 7676/38233 cut-off events. For 1302/1302 co-relation queries the response was YES. Maximal size of possible extension queue 798. Compared 522313 event pairs, 4596 based on Foata normal form. 0/31406 useless extension candidates. Maximal degree in co-relation 48496. Up to 9716 conditions per place. [2025-02-08 05:39:39,841 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/356 dead transitions. [2025-02-08 05:39:39,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 356 transitions, 832 flow [2025-02-08 05:39:39,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:39:39,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:39:39,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2025-02-08 05:39:39,845 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2025-02-08 05:39:39,845 INFO L175 Difference]: Start difference. First operand has 359 places, 357 transitions, 734 flow. Second operand 3 states and 1059 transitions. [2025-02-08 05:39:39,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 356 transitions, 832 flow [2025-02-08 05:39:39,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 356 transitions, 828 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:39:39,848 INFO L231 Difference]: Finished difference. Result has 358 places, 356 transitions, 732 flow [2025-02-08 05:39:39,849 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=728, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=732, PETRI_PLACES=358, PETRI_TRANSITIONS=356} [2025-02-08 05:39:39,849 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -17 predicate places. [2025-02-08 05:39:39,849 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 356 transitions, 732 flow [2025-02-08 05:39:39,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 05:39:39,850 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:39:39,850 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] [2025-02-08 05:39:39,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 05:39:39,850 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-02-08 05:39:39,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:39:39,851 INFO L85 PathProgramCache]: Analyzing trace with hash -268495395, now seen corresponding path program 1 times [2025-02-08 05:39:39,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:39:39,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730403650] [2025-02-08 05:39:39,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:39:39,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:39:39,856 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-02-08 05:39:39,858 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-02-08 05:39:39,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:39:39,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:39:39,888 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 05:39:39,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:39:39,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730403650] [2025-02-08 05:39:39,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730403650] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:39:39,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:39:39,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:39:39,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706396763] [2025-02-08 05:39:39,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:39:39,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:39:39,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:39:39,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:39:39,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:39:39,902 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2025-02-08 05:39:39,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 356 transitions, 732 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 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 05:39:39,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:39:39,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2025-02-08 05:39:39,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand