./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/08_rand_cas-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version f8ab0bd5 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/08_rand_cas-race.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash adb74bb4036ab42451aee4c4c2c855416fb34747e80c1114ce822e44c6b19376 --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 21:58:20,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 21:58:20,586 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-13 21:58:20,590 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 21:58:20,590 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 21:58:20,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 21:58:20,604 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 21:58:20,604 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 21:58:20,605 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 21:58:20,605 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 21:58:20,605 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 21:58:20,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 21:58:20,605 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 21:58:20,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 21:58:20,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 21:58:20,606 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 21:58:20,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 21:58:20,606 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 21:58:20,606 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 21:58:20,606 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 21:58:20,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 21:58:20,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 21:58:20,606 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 21:58:20,606 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 21:58:20,606 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 21:58:20,606 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 21:58:20,607 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 21:58:20,607 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 21:58:20,607 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 21:58:20,607 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 21:58:20,607 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 21:58:20,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 21:58:20,607 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 21:58:20,607 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 21:58:20,607 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 21:58:20,607 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 21:58:20,607 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 21:58:20,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 21:58:20,608 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 21:58:20,608 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 21:58:20,608 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 21:58:20,608 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 21:58:20,608 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 -> adb74bb4036ab42451aee4c4c2c855416fb34747e80c1114ce822e44c6b19376 [2025-03-13 21:58:20,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 21:58:20,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 21:58:20,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 21:58:20,843 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 21:58:20,844 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 21:58:20,846 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/08_rand_cas-race.i [2025-03-13 21:58:22,034 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/189d2bc70/f115e823209a49ef811ad8c1b7a4cf9c/FLAG9418e108a [2025-03-13 21:58:22,327 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 21:58:22,332 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/08_rand_cas-race.i [2025-03-13 21:58:22,344 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/189d2bc70/f115e823209a49ef811ad8c1b7a4cf9c/FLAG9418e108a [2025-03-13 21:58:22,603 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/189d2bc70/f115e823209a49ef811ad8c1b7a4cf9c [2025-03-13 21:58:22,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 21:58:22,607 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 21:58:22,608 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 21:58:22,608 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 21:58:22,611 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 21:58:22,612 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 09:58:22" (1/1) ... [2025-03-13 21:58:22,613 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@109bb5a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:58:22, skipping insertion in model container [2025-03-13 21:58:22,614 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 09:58:22" (1/1) ... [2025-03-13 21:58:22,640 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 21:58:22,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 21:58:22,858 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 21:58:22,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 21:58:22,918 INFO L204 MainTranslator]: Completed translation [2025-03-13 21:58:22,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:58:22 WrapperNode [2025-03-13 21:58:22,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 21:58:22,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 21:58:22,920 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 21:58:22,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 21:58:22,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:58:22" (1/1) ... [2025-03-13 21:58:22,934 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:58:22" (1/1) ... [2025-03-13 21:58:22,955 INFO L138 Inliner]: procedures = 176, calls = 34, calls flagged for inlining = 16, calls inlined = 17, statements flattened = 209 [2025-03-13 21:58:22,956 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 21:58:22,956 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 21:58:22,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 21:58:22,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 21:58:22,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:58:22" (1/1) ... [2025-03-13 21:58:22,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:58:22" (1/1) ... [2025-03-13 21:58:22,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:58:22" (1/1) ... [2025-03-13 21:58:22,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:58:22" (1/1) ... [2025-03-13 21:58:22,971 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:58:22" (1/1) ... [2025-03-13 21:58:22,973 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:58:22" (1/1) ... [2025-03-13 21:58:22,975 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:58:22" (1/1) ... [2025-03-13 21:58:22,979 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:58:22" (1/1) ... [2025-03-13 21:58:22,981 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 21:58:22,986 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 21:58:22,986 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 21:58:22,986 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 21:58:22,987 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:58:22" (1/1) ... [2025-03-13 21:58:22,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 21:58:23,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 21:58:23,012 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-13 21:58:23,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-13 21:58:23,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-13 21:58:23,032 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-03-13 21:58:23,032 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-03-13 21:58:23,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-13 21:58:23,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 21:58:23,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-13 21:58:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-13 21:58:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-13 21:58:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 21:58:23,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 21:58:23,034 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 21:58:23,127 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 21:58:23,129 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 21:58:23,480 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L726: havoc PseudoRandomUsingAtomic_nextInt_~#casret~0#1.base, PseudoRandomUsingAtomic_nextInt_~#casret~0#1.offset; [2025-03-13 21:58:23,480 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-1: SUMMARY for call ULTIMATE.dealloc(PseudoRandomUsingAtomic_nextInt_~#casret~0#1.base, PseudoRandomUsingAtomic_nextInt_~#casret~0#1.offset); srcloc: null [2025-03-13 21:58:23,501 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 21:58:23,502 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 21:58:23,502 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 21:58:23,684 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 21:58:23,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 09:58:23 BoogieIcfgContainer [2025-03-13 21:58:23,685 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 21:58:23,686 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 21:58:23,686 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 21:58:23,690 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 21:58:23,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 09:58:22" (1/3) ... [2025-03-13 21:58:23,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318a8824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 09:58:23, skipping insertion in model container [2025-03-13 21:58:23,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:58:22" (2/3) ... [2025-03-13 21:58:23,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318a8824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 09:58:23, skipping insertion in model container [2025-03-13 21:58:23,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 09:58:23" (3/3) ... [2025-03-13 21:58:23,693 INFO L128 eAbstractionObserver]: Analyzing ICFG 08_rand_cas-race.i [2025-03-13 21:58:23,703 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 21:58:23,705 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 08_rand_cas-race.i that has 2 procedures, 158 locations, 1 initial locations, 4 loop locations, and 16 error locations. [2025-03-13 21:58:23,705 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 21:58:23,779 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 21:58:23,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 171 transitions, 346 flow [2025-03-13 21:58:23,860 INFO L124 PetriNetUnfolderBase]: 13/178 cut-off events. [2025-03-13 21:58:23,865 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 21:58:23,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 178 events. 13/178 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 346 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 155. Up to 3 conditions per place. [2025-03-13 21:58:23,869 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 171 transitions, 346 flow [2025-03-13 21:58:23,873 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 171 transitions, 346 flow [2025-03-13 21:58:23,880 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 21:58:23,888 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;@768cffa2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 21:58:23,888 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2025-03-13 21:58:23,894 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 21:58:23,894 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-03-13 21:58:23,894 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 21:58:23,894 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:58:23,896 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] [2025-03-13 21:58:23,896 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-03-13 21:58:23,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:58:23,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1304168874, now seen corresponding path program 1 times [2025-03-13 21:58:23,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:58:23,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969894242] [2025-03-13 21:58:23,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:58:23,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:58:23,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-13 21:58:23,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-13 21:58:23,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:58:23,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:58:24,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:58:24,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:58:24,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969894242] [2025-03-13 21:58:24,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969894242] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:58:24,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:58:24,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-13 21:58:24,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268508302] [2025-03-13 21:58:24,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:58:24,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-13 21:58:24,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:58:24,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-13 21:58:24,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-13 21:58:24,059 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 171 [2025-03-13 21:58:24,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 171 transitions, 346 flow. Second operand has 2 states, 2 states have (on average 144.0) internal successors, (288), 2 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:58:24,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:58:24,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 171 [2025-03-13 21:58:24,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:58:24,147 INFO L124 PetriNetUnfolderBase]: 4/144 cut-off events. [2025-03-13 21:58:24,147 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 21:58:24,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 144 events. 4/144 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 140 event pairs, 0 based on Foata normal form. 15/146 useless extension candidates. Maximal degree in co-relation 129. Up to 6 conditions per place. [2025-03-13 21:58:24,149 INFO L140 encePairwiseOnDemand]: 151/171 looper letters, 5 selfloop transitions, 0 changer transitions 0/141 dead transitions. [2025-03-13 21:58:24,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 141 transitions, 296 flow [2025-03-13 21:58:24,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-13 21:58:24,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-13 21:58:24,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 311 transitions. [2025-03-13 21:58:24,163 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9093567251461988 [2025-03-13 21:58:24,165 INFO L175 Difference]: Start difference. First operand has 161 places, 171 transitions, 346 flow. Second operand 2 states and 311 transitions. [2025-03-13 21:58:24,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 141 transitions, 296 flow [2025-03-13 21:58:24,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 141 transitions, 296 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 21:58:24,173 INFO L231 Difference]: Finished difference. Result has 141 places, 141 transitions, 286 flow [2025-03-13 21:58:24,175 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=286, PETRI_PLACES=141, PETRI_TRANSITIONS=141} [2025-03-13 21:58:24,178 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, -20 predicate places. [2025-03-13 21:58:24,179 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 141 transitions, 286 flow [2025-03-13 21:58:24,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 144.0) internal successors, (288), 2 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:58:24,180 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:58:24,180 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] [2025-03-13 21:58:24,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 21:58:24,180 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-03-13 21:58:24,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:58:24,181 INFO L85 PathProgramCache]: Analyzing trace with hash 824182234, now seen corresponding path program 1 times [2025-03-13 21:58:24,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:58:24,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350842562] [2025-03-13 21:58:24,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:58:24,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:58:24,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-13 21:58:24,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-13 21:58:24,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:58:24,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:58:24,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:58:24,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:58:24,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350842562] [2025-03-13 21:58:24,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350842562] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:58:24,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:58:24,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 21:58:24,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637805595] [2025-03-13 21:58:24,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:58:24,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 21:58:24,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:58:24,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 21:58:24,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 21:58:24,272 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 171 [2025-03-13 21:58:24,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 141 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:58:24,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:58:24,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 171 [2025-03-13 21:58:24,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:58:24,338 INFO L124 PetriNetUnfolderBase]: 4/143 cut-off events. [2025-03-13 21:58:24,338 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 21:58:24,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 143 events. 4/143 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 136 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 153. Up to 5 conditions per place. [2025-03-13 21:58:24,340 INFO L140 encePairwiseOnDemand]: 168/171 looper letters, 6 selfloop transitions, 2 changer transitions 0/140 dead transitions. [2025-03-13 21:58:24,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 140 transitions, 300 flow [2025-03-13 21:58:24,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 21:58:24,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 21:58:24,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 426 transitions. [2025-03-13 21:58:24,344 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8304093567251462 [2025-03-13 21:58:24,344 INFO L175 Difference]: Start difference. First operand has 141 places, 141 transitions, 286 flow. Second operand 3 states and 426 transitions. [2025-03-13 21:58:24,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 140 transitions, 300 flow [2025-03-13 21:58:24,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 140 transitions, 300 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 21:58:24,346 INFO L231 Difference]: Finished difference. Result has 142 places, 140 transitions, 288 flow [2025-03-13 21:58:24,347 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=142, PETRI_TRANSITIONS=140} [2025-03-13 21:58:24,348 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, -19 predicate places. [2025-03-13 21:58:24,348 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 140 transitions, 288 flow [2025-03-13 21:58:24,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:58:24,349 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:58:24,349 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:58:24,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-13 21:58:24,349 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-03-13 21:58:24,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:58:24,350 INFO L85 PathProgramCache]: Analyzing trace with hash 571811268, now seen corresponding path program 1 times [2025-03-13 21:58:24,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:58:24,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538311489] [2025-03-13 21:58:24,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:58:24,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:58:24,357 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-13 21:58:24,361 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-13 21:58:24,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:58:24,362 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 21:58:24,362 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-13 21:58:24,364 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-13 21:58:24,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-13 21:58:24,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:58:24,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 21:58:24,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-13 21:58:24,393 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-13 21:58:24,394 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2025-03-13 21:58:24,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2025-03-13 21:58:24,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2025-03-13 21:58:24,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2025-03-13 21:58:24,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2025-03-13 21:58:24,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2025-03-13 21:58:24,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2025-03-13 21:58:24,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2025-03-13 21:58:24,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2025-03-13 21:58:24,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2025-03-13 21:58:24,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2025-03-13 21:58:24,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2025-03-13 21:58:24,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2025-03-13 21:58:24,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2025-03-13 21:58:24,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2025-03-13 21:58:24,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2025-03-13 21:58:24,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2025-03-13 21:58:24,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2025-03-13 21:58:24,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2025-03-13 21:58:24,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2025-03-13 21:58:24,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2025-03-13 21:58:24,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2025-03-13 21:58:24,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2025-03-13 21:58:24,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2025-03-13 21:58:24,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2025-03-13 21:58:24,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2025-03-13 21:58:24,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2025-03-13 21:58:24,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2025-03-13 21:58:24,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2025-03-13 21:58:24,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2025-03-13 21:58:24,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2025-03-13 21:58:24,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2025-03-13 21:58:24,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2025-03-13 21:58:24,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-13 21:58:24,401 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-13 21:58:24,404 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-13 21:58:24,406 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-13 21:58:24,506 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 21:58:24,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 297 places, 318 transitions, 646 flow [2025-03-13 21:58:24,571 INFO L124 PetriNetUnfolderBase]: 26/334 cut-off events. [2025-03-13 21:58:24,572 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-13 21:58:24,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 334 events. 26/334 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1197 event pairs, 0 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 301. Up to 3 conditions per place. [2025-03-13 21:58:24,581 INFO L82 GeneralOperation]: Start removeDead. Operand has 297 places, 318 transitions, 646 flow [2025-03-13 21:58:24,587 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 297 places, 318 transitions, 646 flow [2025-03-13 21:58:24,589 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 21:58:24,589 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@768cffa2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 21:58:24,591 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2025-03-13 21:58:24,594 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 21:58:24,596 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-03-13 21:58:24,596 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 21:58:24,596 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:58:24,596 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:58:24,596 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-03-13 21:58:24,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:58:24,598 INFO L85 PathProgramCache]: Analyzing trace with hash 77302312, now seen corresponding path program 1 times [2025-03-13 21:58:24,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:58:24,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380129916] [2025-03-13 21:58:24,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:58:24,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:58:24,612 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-13 21:58:24,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-13 21:58:24,619 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:58:24,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:58:24,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:58:24,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:58:24,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380129916] [2025-03-13 21:58:24,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380129916] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:58:24,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:58:24,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-13 21:58:24,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471317509] [2025-03-13 21:58:24,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:58:24,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-13 21:58:24,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:58:24,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-13 21:58:24,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-13 21:58:24,639 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 318 [2025-03-13 21:58:24,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 318 transitions, 646 flow. Second operand has 2 states, 2 states have (on average 264.0) internal successors, (528), 2 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:58:24,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:58:24,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 318 [2025-03-13 21:58:24,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:58:24,792 INFO L124 PetriNetUnfolderBase]: 48/885 cut-off events. [2025-03-13 21:58:24,792 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2025-03-13 21:58:24,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 956 conditions, 885 events. 48/885 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4871 event pairs, 20 based on Foata normal form. 112/899 useless extension candidates. Maximal degree in co-relation 777. Up to 51 conditions per place. [2025-03-13 21:58:24,798 INFO L140 encePairwiseOnDemand]: 279/318 looper letters, 10 selfloop transitions, 0 changer transitions 0/262 dead transitions. [2025-03-13 21:58:24,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 262 transitions, 554 flow [2025-03-13 21:58:24,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-13 21:58:24,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-13 21:58:24,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 575 transitions. [2025-03-13 21:58:24,801 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9040880503144654 [2025-03-13 21:58:24,801 INFO L175 Difference]: Start difference. First operand has 297 places, 318 transitions, 646 flow. Second operand 2 states and 575 transitions. [2025-03-13 21:58:24,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 262 transitions, 554 flow [2025-03-13 21:58:24,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 262 transitions, 554 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 21:58:24,805 INFO L231 Difference]: Finished difference. Result has 260 places, 262 transitions, 534 flow [2025-03-13 21:58:24,805 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=534, PETRI_PLACES=260, PETRI_TRANSITIONS=262} [2025-03-13 21:58:24,806 INFO L279 CegarLoopForPetriNet]: 297 programPoint places, -37 predicate places. [2025-03-13 21:58:24,806 INFO L471 AbstractCegarLoop]: Abstraction has has 260 places, 262 transitions, 534 flow [2025-03-13 21:58:24,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 264.0) internal successors, (528), 2 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:58:24,806 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:58:24,807 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] [2025-03-13 21:58:24,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-13 21:58:24,807 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-03-13 21:58:24,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:58:24,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1273112364, now seen corresponding path program 1 times [2025-03-13 21:58:24,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:58:24,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492359795] [2025-03-13 21:58:24,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:58:24,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:58:24,813 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-13 21:58:24,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-13 21:58:24,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:58:24,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:58:24,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:58:24,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:58:24,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492359795] [2025-03-13 21:58:24,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492359795] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:58:24,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:58:24,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 21:58:24,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755909393] [2025-03-13 21:58:24,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:58:24,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 21:58:24,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:58:24,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 21:58:24,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 21:58:24,866 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 318 [2025-03-13 21:58:24,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 262 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:58:24,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:58:24,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 318 [2025-03-13 21:58:24,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:58:25,151 INFO L124 PetriNetUnfolderBase]: 120/1663 cut-off events. [2025-03-13 21:58:25,151 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2025-03-13 21:58:25,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1852 conditions, 1663 events. 120/1663 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 12122 event pairs, 26 based on Foata normal form. 0/1485 useless extension candidates. Maximal degree in co-relation 1847. Up to 92 conditions per place. [2025-03-13 21:58:25,165 INFO L140 encePairwiseOnDemand]: 310/318 looper letters, 27 selfloop transitions, 6 changer transitions 0/277 dead transitions. [2025-03-13 21:58:25,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 277 transitions, 635 flow [2025-03-13 21:58:25,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 21:58:25,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 21:58:25,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 800 transitions. [2025-03-13 21:58:25,169 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8385744234800838 [2025-03-13 21:58:25,169 INFO L175 Difference]: Start difference. First operand has 260 places, 262 transitions, 534 flow. Second operand 3 states and 800 transitions. [2025-03-13 21:58:25,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 277 transitions, 635 flow [2025-03-13 21:58:25,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 277 transitions, 635 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 21:58:25,176 INFO L231 Difference]: Finished difference. Result has 264 places, 268 transitions, 586 flow [2025-03-13 21:58:25,176 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=586, PETRI_PLACES=264, PETRI_TRANSITIONS=268} [2025-03-13 21:58:25,177 INFO L279 CegarLoopForPetriNet]: 297 programPoint places, -33 predicate places. [2025-03-13 21:58:25,178 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 268 transitions, 586 flow [2025-03-13 21:58:25,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:58:25,179 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:58:25,179 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:58:25,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-13 21:58:25,179 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-03-13 21:58:25,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:58:25,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1418934869, now seen corresponding path program 1 times [2025-03-13 21:58:25,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:58:25,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976394925] [2025-03-13 21:58:25,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:58:25,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:58:25,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-13 21:58:25,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-13 21:58:25,201 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:58:25,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 21:58:25,201 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-13 21:58:25,203 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-13 21:58:25,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-13 21:58:25,212 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:58:25,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 21:58:25,220 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-13 21:58:25,221 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-13 21:58:25,222 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2025-03-13 21:58:25,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2025-03-13 21:58:25,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2025-03-13 21:58:25,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2025-03-13 21:58:25,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2025-03-13 21:58:25,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2025-03-13 21:58:25,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2025-03-13 21:58:25,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2025-03-13 21:58:25,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2025-03-13 21:58:25,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2025-03-13 21:58:25,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2025-03-13 21:58:25,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2025-03-13 21:58:25,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2025-03-13 21:58:25,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2025-03-13 21:58:25,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2025-03-13 21:58:25,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2025-03-13 21:58:25,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2025-03-13 21:58:25,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2025-03-13 21:58:25,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2025-03-13 21:58:25,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2025-03-13 21:58:25,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2025-03-13 21:58:25,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2025-03-13 21:58:25,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2025-03-13 21:58:25,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2025-03-13 21:58:25,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2025-03-13 21:58:25,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2025-03-13 21:58:25,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2025-03-13 21:58:25,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2025-03-13 21:58:25,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2025-03-13 21:58:25,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2025-03-13 21:58:25,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2025-03-13 21:58:25,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2025-03-13 21:58:25,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2025-03-13 21:58:25,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2025-03-13 21:58:25,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2025-03-13 21:58:25,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2025-03-13 21:58:25,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2025-03-13 21:58:25,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2025-03-13 21:58:25,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2025-03-13 21:58:25,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2025-03-13 21:58:25,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2025-03-13 21:58:25,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2025-03-13 21:58:25,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2025-03-13 21:58:25,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2025-03-13 21:58:25,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2025-03-13 21:58:25,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2025-03-13 21:58:25,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2025-03-13 21:58:25,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2025-03-13 21:58:25,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2025-03-13 21:58:25,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-13 21:58:25,226 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-13 21:58:25,227 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-13 21:58:25,227 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-03-13 21:58:25,324 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 21:58:25,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 433 places, 465 transitions, 948 flow [2025-03-13 21:58:25,408 INFO L124 PetriNetUnfolderBase]: 39/490 cut-off events. [2025-03-13 21:58:25,408 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-13 21:58:25,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 503 conditions, 490 events. 39/490 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2200 event pairs, 0 based on Foata normal form. 0/399 useless extension candidates. Maximal degree in co-relation 447. Up to 4 conditions per place. [2025-03-13 21:58:25,417 INFO L82 GeneralOperation]: Start removeDead. Operand has 433 places, 465 transitions, 948 flow [2025-03-13 21:58:25,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 433 places, 465 transitions, 948 flow [2025-03-13 21:58:25,425 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 21:58:25,425 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;@768cffa2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 21:58:25,425 INFO L334 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2025-03-13 21:58:25,427 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 21:58:25,427 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-03-13 21:58:25,428 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 21:58:25,428 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:58:25,428 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] [2025-03-13 21:58:25,428 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-03-13 21:58:25,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:58:25,428 INFO L85 PathProgramCache]: Analyzing trace with hash -941585542, now seen corresponding path program 1 times [2025-03-13 21:58:25,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:58:25,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324201136] [2025-03-13 21:58:25,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:58:25,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:58:25,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-13 21:58:25,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-13 21:58:25,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:58:25,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:58:25,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:58:25,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:58:25,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324201136] [2025-03-13 21:58:25,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324201136] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:58:25,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:58:25,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-13 21:58:25,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695918625] [2025-03-13 21:58:25,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:58:25,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-13 21:58:25,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:58:25,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-13 21:58:25,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-13 21:58:25,459 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 465 [2025-03-13 21:58:25,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 465 transitions, 948 flow. Second operand has 2 states, 2 states have (on average 384.0) internal successors, (768), 2 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:58:25,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:58:25,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 465 [2025-03-13 21:58:25,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:58:26,153 INFO L124 PetriNetUnfolderBase]: 372/4781 cut-off events. [2025-03-13 21:58:26,153 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2025-03-13 21:58:26,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5278 conditions, 4781 events. 372/4781 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 46508 event pairs, 220 based on Foata normal form. 750/4972 useless extension candidates. Maximal degree in co-relation 4173. Up to 376 conditions per place. [2025-03-13 21:58:26,201 INFO L140 encePairwiseOnDemand]: 407/465 looper letters, 15 selfloop transitions, 0 changer transitions 0/383 dead transitions. [2025-03-13 21:58:26,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 383 transitions, 814 flow [2025-03-13 21:58:26,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-13 21:58:26,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-13 21:58:26,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 839 transitions. [2025-03-13 21:58:26,206 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9021505376344086 [2025-03-13 21:58:26,207 INFO L175 Difference]: Start difference. First operand has 433 places, 465 transitions, 948 flow. Second operand 2 states and 839 transitions. [2025-03-13 21:58:26,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 383 transitions, 814 flow [2025-03-13 21:58:26,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 379 places, 383 transitions, 812 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-03-13 21:58:26,212 INFO L231 Difference]: Finished difference. Result has 379 places, 383 transitions, 782 flow [2025-03-13 21:58:26,213 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=782, PETRI_PLACES=379, PETRI_TRANSITIONS=383} [2025-03-13 21:58:26,213 INFO L279 CegarLoopForPetriNet]: 433 programPoint places, -54 predicate places. [2025-03-13 21:58:26,213 INFO L471 AbstractCegarLoop]: Abstraction has has 379 places, 383 transitions, 782 flow [2025-03-13 21:58:26,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 384.0) internal successors, (768), 2 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:58:26,214 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:58:26,214 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] [2025-03-13 21:58:26,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-13 21:58:26,214 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-03-13 21:58:26,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:58:26,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1374443038, now seen corresponding path program 1 times [2025-03-13 21:58:26,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:58:26,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771332308] [2025-03-13 21:58:26,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:58:26,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:58:26,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-13 21:58:26,225 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-13 21:58:26,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:58:26,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:58:26,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:58:26,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:58:26,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771332308] [2025-03-13 21:58:26,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771332308] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:58:26,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:58:26,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 21:58:26,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616898436] [2025-03-13 21:58:26,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:58:26,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 21:58:26,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:58:26,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 21:58:26,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 21:58:26,269 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 465 [2025-03-13 21:58:26,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 383 transitions, 782 flow. Second operand has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:58:26,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:58:26,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 465 [2025-03-13 21:58:26,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:58:28,236 INFO L124 PetriNetUnfolderBase]: 2015/17565 cut-off events. [2025-03-13 21:58:28,236 INFO L125 PetriNetUnfolderBase]: For 289/289 co-relation queries the response was YES. [2025-03-13 21:58:28,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20302 conditions, 17565 events. 2015/17565 cut-off events. For 289/289 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 227153 event pairs, 569 based on Foata normal form. 0/15601 useless extension candidates. Maximal degree in co-relation 20296. Up to 1412 conditions per place. [2025-03-13 21:58:28,387 INFO L140 encePairwiseOnDemand]: 453/465 looper letters, 41 selfloop transitions, 9 changer transitions 0/406 dead transitions. [2025-03-13 21:58:28,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 406 transitions, 938 flow [2025-03-13 21:58:28,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 21:58:28,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 21:58:28,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1166 transitions. [2025-03-13 21:58:28,395 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8358422939068101 [2025-03-13 21:58:28,395 INFO L175 Difference]: Start difference. First operand has 379 places, 383 transitions, 782 flow. Second operand 3 states and 1166 transitions. [2025-03-13 21:58:28,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 406 transitions, 938 flow [2025-03-13 21:58:28,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 406 transitions, 938 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 21:58:28,407 INFO L231 Difference]: Finished difference. Result has 383 places, 392 transitions, 860 flow [2025-03-13 21:58:28,408 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=860, PETRI_PLACES=383, PETRI_TRANSITIONS=392} [2025-03-13 21:58:28,408 INFO L279 CegarLoopForPetriNet]: 433 programPoint places, -50 predicate places. [2025-03-13 21:58:28,409 INFO L471 AbstractCegarLoop]: Abstraction has has 383 places, 392 transitions, 860 flow [2025-03-13 21:58:28,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:58:28,409 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:58:28,409 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] [2025-03-13 21:58:28,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-13 21:58:28,410 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-03-13 21:58:28,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:58:28,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1534381298, now seen corresponding path program 1 times [2025-03-13 21:58:28,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:58:28,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102079633] [2025-03-13 21:58:28,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:58:28,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:58:28,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-13 21:58:28,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-13 21:58:28,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:58:28,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:58:28,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:58:28,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:58:28,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102079633] [2025-03-13 21:58:28,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102079633] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:58:28,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:58:28,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 21:58:28,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784270468] [2025-03-13 21:58:28,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:58:28,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 21:58:28,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:58:28,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 21:58:28,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 21:58:29,095 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 465 [2025-03-13 21:58:29,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 392 transitions, 860 flow. Second operand has 6 states, 6 states have (on average 321.6666666666667) internal successors, (1930), 6 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:58:29,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:58:29,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 465 [2025-03-13 21:58:29,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:58:55,344 INFO L124 PetriNetUnfolderBase]: 89059/296469 cut-off events. [2025-03-13 21:58:55,344 INFO L125 PetriNetUnfolderBase]: For 4673/4678 co-relation queries the response was YES. [2025-03-13 21:58:56,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 432431 conditions, 296469 events. 89059/296469 cut-off events. For 4673/4678 co-relation queries the response was YES. Maximal size of possible extension queue 4405. Compared 4702061 event pairs, 52444 based on Foata normal form. 0/271285 useless extension candidates. Maximal degree in co-relation 432423. Up to 103215 conditions per place. [2025-03-13 21:58:57,846 INFO L140 encePairwiseOnDemand]: 418/465 looper letters, 163 selfloop transitions, 130 changer transitions 0/607 dead transitions. [2025-03-13 21:58:57,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 607 transitions, 1916 flow [2025-03-13 21:58:57,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 21:58:57,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 21:58:57,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2214 transitions. [2025-03-13 21:58:57,851 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7935483870967742 [2025-03-13 21:58:57,851 INFO L175 Difference]: Start difference. First operand has 383 places, 392 transitions, 860 flow. Second operand 6 states and 2214 transitions. [2025-03-13 21:58:57,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 607 transitions, 1916 flow [2025-03-13 21:58:57,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 607 transitions, 1898 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 21:58:57,874 INFO L231 Difference]: Finished difference. Result has 390 places, 533 transitions, 1702 flow [2025-03-13 21:58:57,874 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1702, PETRI_PLACES=390, PETRI_TRANSITIONS=533} [2025-03-13 21:58:57,875 INFO L279 CegarLoopForPetriNet]: 433 programPoint places, -43 predicate places. [2025-03-13 21:58:57,875 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 533 transitions, 1702 flow [2025-03-13 21:58:57,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 321.6666666666667) internal successors, (1930), 6 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:58:57,876 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:58:57,877 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:58:57,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-13 21:58:57,877 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-03-13 21:58:57,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:58:57,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1870506359, now seen corresponding path program 1 times [2025-03-13 21:58:57,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:58:57,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081960509] [2025-03-13 21:58:57,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:58:57,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:58:57,886 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-13 21:58:57,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-13 21:58:57,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:58:57,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 21:58:57,892 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-13 21:58:57,894 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-13 21:58:57,898 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-13 21:58:57,898 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:58:57,898 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 21:58:57,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-13 21:58:57,905 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-13 21:58:57,905 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2025-03-13 21:58:57,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2025-03-13 21:58:57,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2025-03-13 21:58:57,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2025-03-13 21:58:57,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2025-03-13 21:58:57,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2025-03-13 21:58:57,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2025-03-13 21:58:57,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2025-03-13 21:58:57,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2025-03-13 21:58:57,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2025-03-13 21:58:57,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2025-03-13 21:58:57,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2025-03-13 21:58:57,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2025-03-13 21:58:57,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2025-03-13 21:58:57,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2025-03-13 21:58:57,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2025-03-13 21:58:57,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2025-03-13 21:58:57,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2025-03-13 21:58:57,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2025-03-13 21:58:57,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2025-03-13 21:58:57,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2025-03-13 21:58:57,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2025-03-13 21:58:57,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2025-03-13 21:58:57,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2025-03-13 21:58:57,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2025-03-13 21:58:57,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2025-03-13 21:58:57,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2025-03-13 21:58:57,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2025-03-13 21:58:57,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2025-03-13 21:58:57,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2025-03-13 21:58:57,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2025-03-13 21:58:57,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-13 21:58:57,908 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-13 21:58:57,908 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-13 21:58:57,908 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-03-13 21:58:57,999 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 21:58:58,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 569 places, 612 transitions, 1252 flow [2025-03-13 21:58:58,093 INFO L124 PetriNetUnfolderBase]: 52/646 cut-off events. [2025-03-13 21:58:58,093 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-03-13 21:58:58,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 646 events. 52/646 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3290 event pairs, 0 based on Foata normal form. 0/525 useless extension candidates. Maximal degree in co-relation 593. Up to 5 conditions per place. [2025-03-13 21:58:58,106 INFO L82 GeneralOperation]: Start removeDead. Operand has 569 places, 612 transitions, 1252 flow [2025-03-13 21:58:58,113 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 569 places, 612 transitions, 1252 flow [2025-03-13 21:58:58,114 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 21:58:58,114 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;@768cffa2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 21:58:58,114 INFO L334 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2025-03-13 21:58:58,115 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 21:58:58,115 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-03-13 21:58:58,115 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 21:58:58,116 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:58:58,116 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] [2025-03-13 21:58:58,116 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2025-03-13 21:58:58,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:58:58,116 INFO L85 PathProgramCache]: Analyzing trace with hash -65855796, now seen corresponding path program 1 times [2025-03-13 21:58:58,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:58:58,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049764053] [2025-03-13 21:58:58,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:58:58,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:58:58,121 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-13 21:58:58,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-13 21:58:58,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:58:58,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:58:58,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:58:58,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:58:58,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049764053] [2025-03-13 21:58:58,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049764053] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:58:58,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:58:58,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-13 21:58:58,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453597078] [2025-03-13 21:58:58,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:58:58,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-13 21:58:58,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:58:58,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-13 21:58:58,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-13 21:58:58,129 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 612 [2025-03-13 21:58:58,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 612 transitions, 1252 flow. Second operand has 2 states, 2 states have (on average 504.0) internal successors, (1008), 2 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:58:58,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:58:58,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 612 [2025-03-13 21:58:58,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:59:01,932 INFO L124 PetriNetUnfolderBase]: 2496/24852 cut-off events. [2025-03-13 21:59:01,932 INFO L125 PetriNetUnfolderBase]: For 1422/1422 co-relation queries the response was YES. [2025-03-13 21:59:02,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28100 conditions, 24852 events. 2496/24852 cut-off events. For 1422/1422 co-relation queries the response was YES. Maximal size of possible extension queue 482. Compared 338227 event pairs, 1720 based on Foata normal form. 4872/26774 useless extension candidates. Maximal degree in co-relation 21949. Up to 2501 conditions per place. [2025-03-13 21:59:02,397 INFO L140 encePairwiseOnDemand]: 535/612 looper letters, 20 selfloop transitions, 0 changer transitions 0/504 dead transitions. [2025-03-13 21:59:02,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 504 transitions, 1076 flow [2025-03-13 21:59:02,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-13 21:59:02,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-13 21:59:02,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1103 transitions. [2025-03-13 21:59:02,401 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9011437908496732 [2025-03-13 21:59:02,401 INFO L175 Difference]: Start difference. First operand has 569 places, 612 transitions, 1252 flow. Second operand 2 states and 1103 transitions. [2025-03-13 21:59:02,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 504 transitions, 1076 flow [2025-03-13 21:59:02,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 504 transitions, 1070 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-03-13 21:59:02,407 INFO L231 Difference]: Finished difference. Result has 498 places, 504 transitions, 1030 flow [2025-03-13 21:59:02,408 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=612, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1030, PETRI_PLACES=498, PETRI_TRANSITIONS=504} [2025-03-13 21:59:02,408 INFO L279 CegarLoopForPetriNet]: 569 programPoint places, -71 predicate places. [2025-03-13 21:59:02,408 INFO L471 AbstractCegarLoop]: Abstraction has has 498 places, 504 transitions, 1030 flow [2025-03-13 21:59:02,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 504.0) internal successors, (1008), 2 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:59:02,409 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:59:02,409 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] [2025-03-13 21:59:02,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-13 21:59:02,409 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2025-03-13 21:59:02,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:59:02,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1137163184, now seen corresponding path program 1 times [2025-03-13 21:59:02,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:59:02,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107904096] [2025-03-13 21:59:02,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:59:02,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:59:02,415 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-13 21:59:02,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-13 21:59:02,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:59:02,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:59:02,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:59:02,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:59:02,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107904096] [2025-03-13 21:59:02,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107904096] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:59:02,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:59:02,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 21:59:02,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572907842] [2025-03-13 21:59:02,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:59:02,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 21:59:02,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:59:02,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 21:59:02,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 21:59:02,462 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 612 [2025-03-13 21:59:02,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 504 transitions, 1030 flow. Second operand has 3 states, 3 states have (on average 488.3333333333333) internal successors, (1465), 3 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 21:59:02,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:59:02,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 612 [2025-03-13 21:59:02,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand