./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 735b3cc8 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a107795e01eed1ee79fba30cb5022ee32b5d5a3711e8a094ab0bb165fd3efa7a --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 01:44:08,713 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 01:44:08,755 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-14 01:44:08,759 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 01:44:08,759 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 01:44:08,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 01:44:08,783 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 01:44:08,783 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 01:44:08,784 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 01:44:08,784 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 01:44:08,784 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 01:44:08,784 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 01:44:08,784 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 01:44:08,784 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 01:44:08,784 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 01:44:08,784 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 01:44:08,784 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 01:44:08,784 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 01:44:08,784 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 01:44:08,785 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 01:44:08,786 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 01:44:08,786 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 01:44:08,786 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-14 01:44:08,786 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-14 01:44:08,786 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 01:44:08,786 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 01:44:08,786 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 01:44:08,786 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 01:44:08,786 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 01:44:08,786 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 01:44:08,786 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 01:44:08,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:44:08,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 01:44:08,787 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 01:44:08,787 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 01:44:08,787 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 01:44:08,787 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 01:44:08,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 01:44:08,787 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 01:44:08,787 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 01:44:08,787 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 01:44:08,787 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 01:44:08,787 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a107795e01eed1ee79fba30cb5022ee32b5d5a3711e8a094ab0bb165fd3efa7a [2025-03-14 01:44:09,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 01:44:09,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 01:44:09,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 01:44:09,019 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 01:44:09,019 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 01:44:09,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2025-03-14 01:44:10,194 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/390f02906/4148c4079e1045d6a3c29345d864c780/FLAGbadee90d5 [2025-03-14 01:44:10,466 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 01:44:10,468 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2025-03-14 01:44:10,475 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/390f02906/4148c4079e1045d6a3c29345d864c780/FLAGbadee90d5 [2025-03-14 01:44:10,760 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/390f02906/4148c4079e1045d6a3c29345d864c780 [2025-03-14 01:44:10,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 01:44:10,764 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 01:44:10,765 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 01:44:10,766 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 01:44:10,769 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 01:44:10,769 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:44:10" (1/1) ... [2025-03-14 01:44:10,770 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f270079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:44:10, skipping insertion in model container [2025-03-14 01:44:10,770 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:44:10" (1/1) ... [2025-03-14 01:44:10,782 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 01:44:10,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:44:10,918 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 01:44:10,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:44:10,963 INFO L204 MainTranslator]: Completed translation [2025-03-14 01:44:10,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:44:10 WrapperNode [2025-03-14 01:44:10,964 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 01:44:10,965 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 01:44:10,965 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 01:44:10,965 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 01:44:10,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:44:10" (1/1) ... [2025-03-14 01:44:10,975 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:44:10" (1/1) ... [2025-03-14 01:44:10,993 INFO L138 Inliner]: procedures = 22, calls = 23, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 305 [2025-03-14 01:44:10,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 01:44:10,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 01:44:10,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 01:44:10,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 01:44:10,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:44:10" (1/1) ... [2025-03-14 01:44:10,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:44:10" (1/1) ... [2025-03-14 01:44:11,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:44:10" (1/1) ... [2025-03-14 01:44:11,002 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:44:10" (1/1) ... [2025-03-14 01:44:11,006 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:44:10" (1/1) ... [2025-03-14 01:44:11,007 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:44:10" (1/1) ... [2025-03-14 01:44:11,009 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:44:10" (1/1) ... [2025-03-14 01:44:11,010 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:44:10" (1/1) ... [2025-03-14 01:44:11,012 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 01:44:11,013 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 01:44:11,013 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 01:44:11,013 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 01:44:11,017 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:44:10" (1/1) ... [2025-03-14 01:44:11,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:44:11,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:44:11,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-14 01:44:11,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-14 01:44:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 01:44:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-14 01:44:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-14 01:44:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-14 01:44:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-14 01:44:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-14 01:44:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-14 01:44:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-03-14 01:44:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-03-14 01:44:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-14 01:44:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-03-14 01:44:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-03-14 01:44:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-03-14 01:44:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-03-14 01:44:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 01:44:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 01:44:11,071 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 01:44:11,153 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 01:44:11,154 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 01:44:11,560 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 01:44:11,560 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 01:44:11,560 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 01:44:11,600 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 01:44:11,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:44:11 BoogieIcfgContainer [2025-03-14 01:44:11,600 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 01:44:11,602 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 01:44:11,602 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 01:44:11,606 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 01:44:11,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 01:44:10" (1/3) ... [2025-03-14 01:44:11,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdf8b08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:44:11, skipping insertion in model container [2025-03-14 01:44:11,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:44:10" (2/3) ... [2025-03-14 01:44:11,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdf8b08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:44:11, skipping insertion in model container [2025-03-14 01:44:11,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:44:11" (3/3) ... [2025-03-14 01:44:11,610 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-barrier-loop.wvr.c [2025-03-14 01:44:11,621 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 01:44:11,623 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. [2025-03-14 01:44:11,623 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 01:44:11,752 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2025-03-14 01:44:11,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 405 places, 408 transitions, 882 flow [2025-03-14 01:44:11,909 INFO L124 PetriNetUnfolderBase]: 22/394 cut-off events. [2025-03-14 01:44:11,910 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-14 01:44:11,928 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 928 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. [2025-03-14 01:44:11,929 INFO L82 GeneralOperation]: Start removeDead. Operand has 405 places, 408 transitions, 882 flow [2025-03-14 01:44:11,934 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 375 places, 377 transitions, 799 flow [2025-03-14 01:44:11,942 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:44:11,951 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;@947e777, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:44:11,951 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2025-03-14 01:44:11,962 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:44:11,962 INFO L124 PetriNetUnfolderBase]: 0/43 cut-off events. [2025-03-14 01:44:11,962 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:44:11,962 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:44:11,963 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] [2025-03-14 01:44:11,963 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-03-14 01:44:11,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:44:11,969 INFO L85 PathProgramCache]: Analyzing trace with hash -118034461, now seen corresponding path program 1 times [2025-03-14 01:44:11,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:44:11,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536691196] [2025-03-14 01:44:11,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:44:11,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:44:12,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-14 01:44:12,043 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-14 01:44:12,044 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:44:12,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:44:12,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:44:12,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:44:12,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536691196] [2025-03-14 01:44:12,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536691196] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:44:12,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:44:12,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:44:12,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838400617] [2025-03-14 01:44:12,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:44:12,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:44:12,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:44:12,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:44:12,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:44:12,196 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2025-03-14 01:44:12,204 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) [2025-03-14 01:44:12,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:44:12,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2025-03-14 01:44:12,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:44:17,530 INFO L124 PetriNetUnfolderBase]: 7436/38733 cut-off events. [2025-03-14 01:44:17,530 INFO L125 PetriNetUnfolderBase]: For 4083/4083 co-relation queries the response was YES. [2025-03-14 01:44:17,664 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 769. Compared 530192 event pairs, 4596 based on Foata normal form. 3874/35820 useless extension candidates. Maximal degree in co-relation 50913. Up to 9448 conditions per place. [2025-03-14 01:44:17,843 INFO L140 encePairwiseOnDemand]: 396/412 looper letters, 48 selfloop transitions, 2 changer transitions 1/363 dead transitions. [2025-03-14 01:44:17,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 363 transitions, 871 flow [2025-03-14 01:44:17,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:44:17,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:44:17,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1072 transitions. [2025-03-14 01:44:17,856 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8673139158576052 [2025-03-14 01:44:17,859 INFO L175 Difference]: Start difference. First operand has 375 places, 377 transitions, 799 flow. Second operand 3 states and 1072 transitions. [2025-03-14 01:44:17,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 363 transitions, 871 flow [2025-03-14 01:44:17,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 363 transitions, 842 flow, removed 0 selfloop flow, removed 11 redundant places. [2025-03-14 01:44:17,886 INFO L231 Difference]: Finished difference. Result has 365 places, 362 transitions, 744 flow [2025-03-14 01:44:17,888 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} [2025-03-14 01:44:17,892 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -10 predicate places. [2025-03-14 01:44:17,893 INFO L471 AbstractCegarLoop]: Abstraction has has 365 places, 362 transitions, 744 flow [2025-03-14 01:44:17,894 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) [2025-03-14 01:44:17,894 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:44:17,894 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] [2025-03-14 01:44:17,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 01:44:17,894 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-03-14 01:44:17,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:44:17,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1907302591, now seen corresponding path program 1 times [2025-03-14 01:44:17,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:44:17,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944908320] [2025-03-14 01:44:17,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:44:17,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:44:17,909 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-14 01:44:17,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-14 01:44:17,919 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:44:17,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:44:17,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:44:17,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:44:17,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944908320] [2025-03-14 01:44:17,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944908320] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:44:17,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:44:17,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:44:17,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891823768] [2025-03-14 01:44:17,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:44:17,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:44:17,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:44:17,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:44:17,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:44:17,980 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2025-03-14 01:44:17,981 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) [2025-03-14 01:44:17,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:44:17,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2025-03-14 01:44:17,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:44:22,229 INFO L124 PetriNetUnfolderBase]: 7436/39583 cut-off events. [2025-03-14 01:44:22,229 INFO L125 PetriNetUnfolderBase]: For 1130/1130 co-relation queries the response was YES. [2025-03-14 01:44:22,393 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 547817 event pairs, 4596 based on Foata normal form. 0/32470 useless extension candidates. Maximal degree in co-relation 49747. Up to 9478 conditions per place. [2025-03-14 01:44:22,570 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/361 dead transitions. [2025-03-14 01:44:22,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 361 transitions, 842 flow [2025-03-14 01:44:22,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:44:22,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:44:22,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2025-03-14 01:44:22,580 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2025-03-14 01:44:22,580 INFO L175 Difference]: Start difference. First operand has 365 places, 362 transitions, 744 flow. Second operand 3 states and 1059 transitions. [2025-03-14 01:44:22,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 361 transitions, 842 flow [2025-03-14 01:44:22,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 361 transitions, 838 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:44:22,587 INFO L231 Difference]: Finished difference. Result has 363 places, 361 transitions, 742 flow [2025-03-14 01:44:22,588 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} [2025-03-14 01:44:22,588 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -12 predicate places. [2025-03-14 01:44:22,588 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 361 transitions, 742 flow [2025-03-14 01:44:22,589 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) [2025-03-14 01:44:22,589 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:44:22,589 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] [2025-03-14 01:44:22,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 01:44:22,589 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-03-14 01:44:22,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:44:22,591 INFO L85 PathProgramCache]: Analyzing trace with hash -297753351, now seen corresponding path program 1 times [2025-03-14 01:44:22,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:44:22,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356899129] [2025-03-14 01:44:22,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:44:22,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:44:22,606 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-03-14 01:44:22,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-03-14 01:44:22,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:44:22,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:44:22,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:44:22,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:44:22,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356899129] [2025-03-14 01:44:22,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356899129] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:44:22,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:44:22,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:44:22,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958563458] [2025-03-14 01:44:22,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:44:22,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:44:22,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:44:22,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:44:22,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:44:22,699 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2025-03-14 01:44:22,701 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) [2025-03-14 01:44:22,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:44:22,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2025-03-14 01:44:22,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:44:26,388 INFO L124 PetriNetUnfolderBase]: 7676/38745 cut-off events. [2025-03-14 01:44:26,388 INFO L125 PetriNetUnfolderBase]: For 1288/1288 co-relation queries the response was YES. [2025-03-14 01:44:26,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49114 conditions, 38745 events. 7676/38745 cut-off events. For 1288/1288 co-relation queries the response was YES. Maximal size of possible extension queue 794. Compared 528979 event pairs, 4596 based on Foata normal form. 0/31819 useless extension candidates. Maximal degree in co-relation 49052. Up to 9708 conditions per place. [2025-03-14 01:44:26,817 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/360 dead transitions. [2025-03-14 01:44:26,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 360 transitions, 840 flow [2025-03-14 01:44:26,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:44:26,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:44:26,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2025-03-14 01:44:26,820 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2025-03-14 01:44:26,820 INFO L175 Difference]: Start difference. First operand has 363 places, 361 transitions, 742 flow. Second operand 3 states and 1059 transitions. [2025-03-14 01:44:26,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 360 transitions, 840 flow [2025-03-14 01:44:26,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 360 transitions, 836 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:44:26,825 INFO L231 Difference]: Finished difference. Result has 362 places, 360 transitions, 740 flow [2025-03-14 01:44:26,825 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} [2025-03-14 01:44:26,826 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -13 predicate places. [2025-03-14 01:44:26,826 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 360 transitions, 740 flow [2025-03-14 01:44:26,827 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) [2025-03-14 01:44:26,827 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:44:26,827 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] [2025-03-14 01:44:26,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 01:44:26,827 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-03-14 01:44:26,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:44:26,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1596382869, now seen corresponding path program 1 times [2025-03-14 01:44:26,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:44:26,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270451968] [2025-03-14 01:44:26,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:44:26,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:44:26,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-14 01:44:26,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-14 01:44:26,844 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:44:26,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:44:26,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:44:26,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:44:26,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270451968] [2025-03-14 01:44:26,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270451968] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:44:26,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:44:26,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:44:26,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765647190] [2025-03-14 01:44:26,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:44:26,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:44:26,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:44:26,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:44:26,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:44:26,905 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2025-03-14 01:44:26,907 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) [2025-03-14 01:44:26,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:44:26,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2025-03-14 01:44:26,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:44:31,164 INFO L124 PetriNetUnfolderBase]: 7676/39347 cut-off events. [2025-03-14 01:44:31,164 INFO L125 PetriNetUnfolderBase]: For 1290/1290 co-relation queries the response was YES. [2025-03-14 01:44:31,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49726 conditions, 39347 events. 7676/39347 cut-off events. For 1290/1290 co-relation queries the response was YES. Maximal size of possible extension queue 766. Compared 540500 event pairs, 4596 based on Foata normal form. 0/32097 useless extension candidates. Maximal degree in co-relation 49657. Up to 9718 conditions per place. [2025-03-14 01:44:31,450 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/359 dead transitions. [2025-03-14 01:44:31,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 359 transitions, 838 flow [2025-03-14 01:44:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:44:31,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:44:31,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2025-03-14 01:44:31,453 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2025-03-14 01:44:31,453 INFO L175 Difference]: Start difference. First operand has 362 places, 360 transitions, 740 flow. Second operand 3 states and 1059 transitions. [2025-03-14 01:44:31,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 359 transitions, 838 flow [2025-03-14 01:44:31,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 359 transitions, 834 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:44:31,458 INFO L231 Difference]: Finished difference. Result has 361 places, 359 transitions, 738 flow [2025-03-14 01:44:31,459 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} [2025-03-14 01:44:31,460 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -14 predicate places. [2025-03-14 01:44:31,460 INFO L471 AbstractCegarLoop]: Abstraction has has 361 places, 359 transitions, 738 flow [2025-03-14 01:44:31,461 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) [2025-03-14 01:44:31,461 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:44:31,461 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] [2025-03-14 01:44:31,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 01:44:31,461 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-03-14 01:44:31,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:44:31,463 INFO L85 PathProgramCache]: Analyzing trace with hash 323886849, now seen corresponding path program 1 times [2025-03-14 01:44:31,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:44:31,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643495249] [2025-03-14 01:44:31,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:44:31,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:44:31,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-14 01:44:31,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-14 01:44:31,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:44:31,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:44:31,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:44:31,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:44:31,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643495249] [2025-03-14 01:44:31,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643495249] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:44:31,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:44:31,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:44:31,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622808463] [2025-03-14 01:44:31,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:44:31,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:44:31,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:44:31,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:44:31,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:44:31,534 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2025-03-14 01:44:31,535 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) [2025-03-14 01:44:31,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:44:31,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2025-03-14 01:44:31,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:44:35,652 INFO L124 PetriNetUnfolderBase]: 7436/38358 cut-off events. [2025-03-14 01:44:35,652 INFO L125 PetriNetUnfolderBase]: For 1142/1142 co-relation queries the response was YES. [2025-03-14 01:44:35,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48525 conditions, 38358 events. 7436/38358 cut-off events. For 1142/1142 co-relation queries the response was YES. Maximal size of possible extension queue 773. Compared 524883 event pairs, 4596 based on Foata normal form. 0/31675 useless extension candidates. Maximal degree in co-relation 48449. Up to 9450 conditions per place. [2025-03-14 01:44:35,927 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/358 dead transitions. [2025-03-14 01:44:35,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 358 transitions, 836 flow [2025-03-14 01:44:35,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:44:35,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:44:35,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2025-03-14 01:44:35,929 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2025-03-14 01:44:35,929 INFO L175 Difference]: Start difference. First operand has 361 places, 359 transitions, 738 flow. Second operand 3 states and 1059 transitions. [2025-03-14 01:44:35,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 358 transitions, 836 flow [2025-03-14 01:44:35,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 358 transitions, 832 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:44:35,933 INFO L231 Difference]: Finished difference. Result has 360 places, 358 transitions, 736 flow [2025-03-14 01:44:35,933 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} [2025-03-14 01:44:35,934 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -15 predicate places. [2025-03-14 01:44:35,934 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 358 transitions, 736 flow [2025-03-14 01:44:35,934 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) [2025-03-14 01:44:35,934 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:44:35,935 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] [2025-03-14 01:44:35,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-14 01:44:35,935 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-03-14 01:44:35,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:44:35,935 INFO L85 PathProgramCache]: Analyzing trace with hash 420709178, now seen corresponding path program 1 times [2025-03-14 01:44:35,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:44:35,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356506047] [2025-03-14 01:44:35,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:44:35,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:44:35,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-14 01:44:35,942 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-14 01:44:35,942 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:44:35,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:44:35,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:44:35,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:44:35,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356506047] [2025-03-14 01:44:35,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356506047] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:44:35,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:44:35,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:44:35,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817160154] [2025-03-14 01:44:35,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:44:35,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:44:35,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:44:35,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:44:35,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:44:35,985 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2025-03-14 01:44:35,986 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) [2025-03-14 01:44:35,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:44:35,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2025-03-14 01:44:35,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:44:40,175 INFO L124 PetriNetUnfolderBase]: 7436/38709 cut-off events. [2025-03-14 01:44:40,176 INFO L125 PetriNetUnfolderBase]: For 1142/1142 co-relation queries the response was YES. [2025-03-14 01:44:40,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48904 conditions, 38709 events. 7436/38709 cut-off events. For 1142/1142 co-relation queries the response was YES. Maximal size of possible extension queue 764. Compared 532292 event pairs, 4596 based on Foata normal form. 0/31649 useless extension candidates. Maximal degree in co-relation 48821. Up to 9478 conditions per place. [2025-03-14 01:44:40,477 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/357 dead transitions. [2025-03-14 01:44:40,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 357 transitions, 834 flow [2025-03-14 01:44:40,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:44:40,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:44:40,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2025-03-14 01:44:40,479 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2025-03-14 01:44:40,479 INFO L175 Difference]: Start difference. First operand has 360 places, 358 transitions, 736 flow. Second operand 3 states and 1059 transitions. [2025-03-14 01:44:40,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 357 transitions, 834 flow [2025-03-14 01:44:40,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 357 transitions, 830 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:44:40,483 INFO L231 Difference]: Finished difference. Result has 359 places, 357 transitions, 734 flow [2025-03-14 01:44:40,483 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} [2025-03-14 01:44:40,484 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -16 predicate places. [2025-03-14 01:44:40,484 INFO L471 AbstractCegarLoop]: Abstraction has has 359 places, 357 transitions, 734 flow [2025-03-14 01:44:40,484 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) [2025-03-14 01:44:40,484 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:44:40,484 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] [2025-03-14 01:44:40,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-14 01:44:40,484 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-03-14 01:44:40,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:44:40,485 INFO L85 PathProgramCache]: Analyzing trace with hash 574321130, now seen corresponding path program 1 times [2025-03-14 01:44:40,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:44:40,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307609003] [2025-03-14 01:44:40,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:44:40,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:44:40,490 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-03-14 01:44:40,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-03-14 01:44:40,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:44:40,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:44:40,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:44:40,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:44:40,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307609003] [2025-03-14 01:44:40,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307609003] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:44:40,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:44:40,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:44:40,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811754638] [2025-03-14 01:44:40,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:44:40,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:44:40,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:44:40,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:44:40,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:44:40,540 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2025-03-14 01:44:40,541 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) [2025-03-14 01:44:40,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:44:40,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2025-03-14 01:44:40,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:44:44,706 INFO L124 PetriNetUnfolderBase]: 7676/38233 cut-off events. [2025-03-14 01:44:44,706 INFO L125 PetriNetUnfolderBase]: For 1302/1302 co-relation queries the response was YES. [2025-03-14 01:44:44,887 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 799. Compared 522570 event pairs, 4596 based on Foata normal form. 0/31435 useless extension candidates. Maximal degree in co-relation 48496. Up to 9716 conditions per place. [2025-03-14 01:44:45,205 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/356 dead transitions. [2025-03-14 01:44:45,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 356 transitions, 832 flow [2025-03-14 01:44:45,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:44:45,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:44:45,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2025-03-14 01:44:45,207 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2025-03-14 01:44:45,207 INFO L175 Difference]: Start difference. First operand has 359 places, 357 transitions, 734 flow. Second operand 3 states and 1059 transitions. [2025-03-14 01:44:45,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 356 transitions, 832 flow [2025-03-14 01:44:45,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 356 transitions, 828 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:44:45,210 INFO L231 Difference]: Finished difference. Result has 358 places, 356 transitions, 732 flow [2025-03-14 01:44:45,211 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} [2025-03-14 01:44:45,211 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -17 predicate places. [2025-03-14 01:44:45,211 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 356 transitions, 732 flow [2025-03-14 01:44:45,212 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) [2025-03-14 01:44:45,212 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:44:45,212 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] [2025-03-14 01:44:45,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-14 01:44:45,212 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-03-14 01:44:45,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:44:45,213 INFO L85 PathProgramCache]: Analyzing trace with hash 536843633, now seen corresponding path program 1 times [2025-03-14 01:44:45,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:44:45,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974474157] [2025-03-14 01:44:45,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:44:45,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:44:45,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-14 01:44:45,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-14 01:44:45,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:44:45,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:44:45,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:44:45,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:44:45,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974474157] [2025-03-14 01:44:45,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974474157] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:44:45,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:44:45,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:44:45,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233548538] [2025-03-14 01:44:45,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:44:45,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:44:45,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:44:45,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:44:45,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:44:45,268 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 412 [2025-03-14 01:44:45,269 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) [2025-03-14 01:44:45,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:44:45,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 412 [2025-03-14 01:44:45,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:44:49,251 INFO L124 PetriNetUnfolderBase]: 7676/37903 cut-off events. [2025-03-14 01:44:49,251 INFO L125 PetriNetUnfolderBase]: For 1302/1302 co-relation queries the response was YES. [2025-03-14 01:44:49,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48258 conditions, 37903 events. 7676/37903 cut-off events. For 1302/1302 co-relation queries the response was YES. Maximal size of possible extension queue 743. Compared 513119 event pairs, 4596 based on Foata normal form. 0/30822 useless extension candidates. Maximal degree in co-relation 48161. Up to 9718 conditions per place. [2025-03-14 01:44:49,598 INFO L140 encePairwiseOnDemand]: 409/412 looper letters, 48 selfloop transitions, 2 changer transitions 0/355 dead transitions. [2025-03-14 01:44:49,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 355 transitions, 830 flow [2025-03-14 01:44:49,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:44:49,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:44:49,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1059 transitions. [2025-03-14 01:44:49,600 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8567961165048543 [2025-03-14 01:44:49,601 INFO L175 Difference]: Start difference. First operand has 358 places, 356 transitions, 732 flow. Second operand 3 states and 1059 transitions. [2025-03-14 01:44:49,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 355 transitions, 830 flow [2025-03-14 01:44:49,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 355 transitions, 826 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:44:49,605 INFO L231 Difference]: Finished difference. Result has 357 places, 355 transitions, 730 flow [2025-03-14 01:44:49,605 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=412, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=730, PETRI_PLACES=357, PETRI_TRANSITIONS=355} [2025-03-14 01:44:49,606 INFO L279 CegarLoopForPetriNet]: 375 programPoint places, -18 predicate places. [2025-03-14 01:44:49,606 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 355 transitions, 730 flow [2025-03-14 01:44:49,607 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) [2025-03-14 01:44:49,607 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:44:49,607 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:44:49,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-14 01:44:49,607 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2025-03-14 01:44:49,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:44:49,608 INFO L85 PathProgramCache]: Analyzing trace with hash -629188407, now seen corresponding path program 1 times [2025-03-14 01:44:49,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:44:49,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815763285] [2025-03-14 01:44:49,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:44:49,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:44:49,622 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-03-14 01:44:49,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-03-14 01:44:49,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:44:49,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:44:49,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:44:49,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:44:49,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815763285] [2025-03-14 01:44:49,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815763285] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:44:49,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:44:49,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:44:49,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933667986] [2025-03-14 01:44:49,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:44:49,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:44:49,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:44:49,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:44:49,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:44:49,721 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 412 [2025-03-14 01:44:49,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 355 transitions, 730 flow. Second operand has 3 states, 3 states have (on average 343.3333333333333) internal successors, (1030), 3 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:44:49,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:44:49,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 412 [2025-03-14 01:44:49,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand