./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e4eda3d9731a5d805cffabe3eaaa057ba5ed6235ab584548c3730cf4f9dedf3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:01:13,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:01:13,279 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:01:13,283 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:01:13,283 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:01:13,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:01:13,296 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:01:13,297 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:01:13,298 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:01:13,298 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:01:13,298 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:01:13,298 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:01:13,298 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:01:13,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:01:13,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:01:13,298 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:01:13,298 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:01:13,298 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:01:13,298 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:01:13,298 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:01:13,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:01:13,298 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:01:13,298 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:01:13,299 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:01:13,299 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:01:13,299 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:01:13,299 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:01:13,299 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:01:13,299 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:01:13,299 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:01:13,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:01:13,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:01:13,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:01:13,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:01:13,299 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:01:13,299 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:01:13,299 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:01:13,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:01:13,299 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:01:13,299 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:01:13,299 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:01:13,300 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:01:13,300 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e4eda3d9731a5d805cffabe3eaaa057ba5ed6235ab584548c3730cf4f9dedf3 [2025-02-06 09:01:13,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:01:13,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:01:13,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:01:13,514 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:01:13,514 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:01:13,516 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i [2025-02-06 09:01:14,657 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a329981ae/d13cd180602b447abff411673915902f/FLAG2c0cc125c [2025-02-06 09:01:14,980 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:01:14,981 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i [2025-02-06 09:01:14,989 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a329981ae/d13cd180602b447abff411673915902f/FLAG2c0cc125c [2025-02-06 09:01:15,272 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a329981ae/d13cd180602b447abff411673915902f [2025-02-06 09:01:15,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:01:15,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:01:15,278 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:01:15,280 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:01:15,283 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:01:15,283 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:01:15" (1/1) ... [2025-02-06 09:01:15,285 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1802c266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:01:15, skipping insertion in model container [2025-02-06 09:01:15,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:01:15" (1/1) ... [2025-02-06 09:01:15,306 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:01:15,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:01:15,551 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:01:15,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:01:15,631 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:01:15,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:01:15 WrapperNode [2025-02-06 09:01:15,631 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:01:15,632 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:01:15,632 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:01:15,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:01:15,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:01:15" (1/1) ... [2025-02-06 09:01:15,643 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:01:15" (1/1) ... [2025-02-06 09:01:15,660 INFO L138 Inliner]: procedures = 169, calls = 16, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 114 [2025-02-06 09:01:15,660 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:01:15,662 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:01:15,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:01:15,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:01:15,667 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:01:15" (1/1) ... [2025-02-06 09:01:15,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:01:15" (1/1) ... [2025-02-06 09:01:15,671 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:01:15" (1/1) ... [2025-02-06 09:01:15,674 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:01:15" (1/1) ... [2025-02-06 09:01:15,678 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:01:15" (1/1) ... [2025-02-06 09:01:15,683 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:01:15" (1/1) ... [2025-02-06 09:01:15,684 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:01:15" (1/1) ... [2025-02-06 09:01:15,684 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:01:15" (1/1) ... [2025-02-06 09:01:15,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:01:15,689 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:01:15,690 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:01:15,690 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:01:15,691 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:01:15" (1/1) ... [2025-02-06 09:01:15,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:01:15,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:01:15,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:01:15,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:01:15,748 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-06 09:01:15,749 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-06 09:01:15,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:01:15,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:01:15,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:01:15,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:01:15,750 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:01:15,845 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:01:15,847 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:01:16,025 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:01:16,025 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:01:16,109 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:01:16,110 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:01:16,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:01:16 BoogieIcfgContainer [2025-02-06 09:01:16,110 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:01:16,112 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:01:16,112 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:01:16,115 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:01:16,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:01:15" (1/3) ... [2025-02-06 09:01:16,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75be416d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:01:16, skipping insertion in model container [2025-02-06 09:01:16,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:01:15" (2/3) ... [2025-02-06 09:01:16,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75be416d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:01:16, skipping insertion in model container [2025-02-06 09:01:16,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:01:16" (3/3) ... [2025-02-06 09:01:16,120 INFO L128 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf-b.i [2025-02-06 09:01:16,131 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:01:16,132 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 40_barrier_vf-b.i that has 2 procedures, 89 locations, 1 initial locations, 1 loop locations, and 15 error locations. [2025-02-06 09:01:16,134 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:01:16,171 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:01:16,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 93 transitions, 190 flow [2025-02-06 09:01:16,221 INFO L124 PetriNetUnfolderBase]: 4/100 cut-off events. [2025-02-06 09:01:16,222 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:01:16,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 100 events. 4/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2025-02-06 09:01:16,225 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 93 transitions, 190 flow [2025-02-06 09:01:16,227 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 93 transitions, 190 flow [2025-02-06 09:01:16,242 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:01:16,253 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;@2afa8c73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:01:16,254 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2025-02-06 09:01:16,262 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:01:16,263 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-02-06 09:01:16,263 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:01:16,263 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:01:16,264 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:01:16,264 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2025-02-06 09:01:16,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:01:16,272 INFO L85 PathProgramCache]: Analyzing trace with hash 241149705, now seen corresponding path program 1 times [2025-02-06 09:01:16,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:01:16,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439956533] [2025-02-06 09:01:16,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:01:16,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:01:16,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 09:01:16,359 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 09:01:16,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:16,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:01:16,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:01:16,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:01:16,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439956533] [2025-02-06 09:01:16,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439956533] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:01:16,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:01:16,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 09:01:16,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501887802] [2025-02-06 09:01:16,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:01:16,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:01:16,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:01:16,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:01:16,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:01:16,451 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 93 [2025-02-06 09:01:16,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 93 transitions, 190 flow. Second operand has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:16,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:01:16,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 93 [2025-02-06 09:01:16,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:01:16,506 INFO L124 PetriNetUnfolderBase]: 1/76 cut-off events. [2025-02-06 09:01:16,507 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:01:16,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 1/76 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 9/76 useless extension candidates. Maximal degree in co-relation 63. Up to 6 conditions per place. [2025-02-06 09:01:16,508 INFO L140 encePairwiseOnDemand]: 80/93 looper letters, 5 selfloop transitions, 0 changer transitions 0/73 dead transitions. [2025-02-06 09:01:16,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 73 transitions, 160 flow [2025-02-06 09:01:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:01:16,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 09:01:16,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 166 transitions. [2025-02-06 09:01:16,517 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8924731182795699 [2025-02-06 09:01:16,518 INFO L175 Difference]: Start difference. First operand has 92 places, 93 transitions, 190 flow. Second operand 2 states and 166 transitions. [2025-02-06 09:01:16,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 73 transitions, 160 flow [2025-02-06 09:01:16,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 73 transitions, 160 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:01:16,523 INFO L231 Difference]: Finished difference. Result has 76 places, 73 transitions, 150 flow [2025-02-06 09:01:16,525 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=150, PETRI_PLACES=76, PETRI_TRANSITIONS=73} [2025-02-06 09:01:16,527 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, -16 predicate places. [2025-02-06 09:01:16,527 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 73 transitions, 150 flow [2025-02-06 09:01:16,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:16,527 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:01:16,528 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] [2025-02-06 09:01:16,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:01:16,528 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2025-02-06 09:01:16,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:01:16,529 INFO L85 PathProgramCache]: Analyzing trace with hash -183354771, now seen corresponding path program 1 times [2025-02-06 09:01:16,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:01:16,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913319181] [2025-02-06 09:01:16,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:01:16,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:01:16,536 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 09:01:16,542 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 09:01:16,542 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:16,542 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:01:16,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:01:16,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:01:16,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913319181] [2025-02-06 09:01:16,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913319181] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:01:16,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:01:16,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:01:16,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144285609] [2025-02-06 09:01:16,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:01:16,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:01:16,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:01:16,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:01:16,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:01:16,590 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 93 [2025-02-06 09:01:16,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 73 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:16,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:01:16,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 93 [2025-02-06 09:01:16,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:01:16,611 INFO L124 PetriNetUnfolderBase]: 0/79 cut-off events. [2025-02-06 09:01:16,611 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:01:16,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 79 events. 0/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2025-02-06 09:01:16,612 INFO L140 encePairwiseOnDemand]: 87/93 looper letters, 8 selfloop transitions, 4 changer transitions 0/72 dead transitions. [2025-02-06 09:01:16,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 72 transitions, 172 flow [2025-02-06 09:01:16,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:01:16,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:01:16,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 212 transitions. [2025-02-06 09:01:16,613 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7598566308243727 [2025-02-06 09:01:16,613 INFO L175 Difference]: Start difference. First operand has 76 places, 73 transitions, 150 flow. Second operand 3 states and 212 transitions. [2025-02-06 09:01:16,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 72 transitions, 172 flow [2025-02-06 09:01:16,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 72 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:01:16,615 INFO L231 Difference]: Finished difference. Result has 76 places, 71 transitions, 154 flow [2025-02-06 09:01:16,615 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=76, PETRI_TRANSITIONS=71} [2025-02-06 09:01:16,616 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, -16 predicate places. [2025-02-06 09:01:16,616 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 71 transitions, 154 flow [2025-02-06 09:01:16,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:16,616 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:01:16,617 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:01:16,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 09:01:16,617 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2025-02-06 09:01:16,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:01:16,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1428003723, now seen corresponding path program 1 times [2025-02-06 09:01:16,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:01:16,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897000371] [2025-02-06 09:01:16,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:01:16,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:01:16,624 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 09:01:16,629 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 09:01:16,629 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:16,629 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:01:16,629 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:01:16,630 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 09:01:16,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 09:01:16,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:16,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:01:16,643 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:01:16,643 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:01:16,644 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2025-02-06 09:01:16,645 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2025-02-06 09:01:16,645 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2025-02-06 09:01:16,645 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2025-02-06 09:01:16,645 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2025-02-06 09:01:16,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2025-02-06 09:01:16,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2025-02-06 09:01:16,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2025-02-06 09:01:16,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2025-02-06 09:01:16,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2025-02-06 09:01:16,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2025-02-06 09:01:16,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2025-02-06 09:01:16,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2025-02-06 09:01:16,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2025-02-06 09:01:16,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2025-02-06 09:01:16,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2025-02-06 09:01:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2025-02-06 09:01:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2025-02-06 09:01:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2025-02-06 09:01:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2025-02-06 09:01:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2025-02-06 09:01:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2025-02-06 09:01:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2025-02-06 09:01:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2025-02-06 09:01:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2025-02-06 09:01:16,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2025-02-06 09:01:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2025-02-06 09:01:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2025-02-06 09:01:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2025-02-06 09:01:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2025-02-06 09:01:16,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2025-02-06 09:01:16,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:01:16,648 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-06 09:01:16,650 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:01:16,650 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 09:01:16,676 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:01:16,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 164 transitions, 338 flow [2025-02-06 09:01:16,701 INFO L124 PetriNetUnfolderBase]: 8/180 cut-off events. [2025-02-06 09:01:16,703 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 09:01:16,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 180 events. 8/180 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 496 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 149. Up to 3 conditions per place. [2025-02-06 09:01:16,706 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 164 transitions, 338 flow [2025-02-06 09:01:16,707 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 164 transitions, 338 flow [2025-02-06 09:01:16,710 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:01:16,710 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;@2afa8c73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:01:16,710 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2025-02-06 09:01:16,713 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:01:16,713 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-02-06 09:01:16,713 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:01:16,713 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:01:16,713 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:01:16,714 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-02-06 09:01:16,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:01:16,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1444372653, now seen corresponding path program 1 times [2025-02-06 09:01:16,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:01:16,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613882821] [2025-02-06 09:01:16,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:01:16,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:01:16,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 09:01:16,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 09:01:16,723 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:16,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:01:16,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:01:16,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:01:16,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613882821] [2025-02-06 09:01:16,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613882821] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:01:16,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:01:16,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 09:01:16,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317815998] [2025-02-06 09:01:16,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:01:16,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:01:16,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:01:16,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:01:16,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:01:16,737 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2025-02-06 09:01:16,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 164 transitions, 338 flow. Second operand has 2 states, 2 states have (on average 128.0) internal successors, (256), 2 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:16,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:01:16,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2025-02-06 09:01:16,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:01:16,794 INFO L124 PetriNetUnfolderBase]: 25/367 cut-off events. [2025-02-06 09:01:16,794 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2025-02-06 09:01:16,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 367 events. 25/367 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1753 event pairs, 14 based on Foata normal form. 62/369 useless extension candidates. Maximal degree in co-relation 329. Up to 50 conditions per place. [2025-02-06 09:01:16,798 INFO L140 encePairwiseOnDemand]: 139/164 looper letters, 10 selfloop transitions, 0 changer transitions 0/128 dead transitions. [2025-02-06 09:01:16,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 128 transitions, 286 flow [2025-02-06 09:01:16,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:01:16,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 09:01:16,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 289 transitions. [2025-02-06 09:01:16,802 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8810975609756098 [2025-02-06 09:01:16,802 INFO L175 Difference]: Start difference. First operand has 161 places, 164 transitions, 338 flow. Second operand 2 states and 289 transitions. [2025-02-06 09:01:16,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 128 transitions, 286 flow [2025-02-06 09:01:16,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 128 transitions, 286 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:01:16,804 INFO L231 Difference]: Finished difference. Result has 132 places, 128 transitions, 266 flow [2025-02-06 09:01:16,804 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=266, PETRI_PLACES=132, PETRI_TRANSITIONS=128} [2025-02-06 09:01:16,805 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, -29 predicate places. [2025-02-06 09:01:16,805 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 128 transitions, 266 flow [2025-02-06 09:01:16,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 128.0) internal successors, (256), 2 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:16,805 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:01:16,805 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] [2025-02-06 09:01:16,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 09:01:16,806 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-02-06 09:01:16,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:01:16,806 INFO L85 PathProgramCache]: Analyzing trace with hash 767703121, now seen corresponding path program 1 times [2025-02-06 09:01:16,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:01:16,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245634070] [2025-02-06 09:01:16,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:01:16,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:01:16,813 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 09:01:16,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 09:01:16,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:16,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:01:16,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:01:16,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:01:16,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245634070] [2025-02-06 09:01:16,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245634070] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:01:16,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:01:16,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:01:16,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284913934] [2025-02-06 09:01:16,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:01:16,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:01:16,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:01:16,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:01:16,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:01:16,878 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 164 [2025-02-06 09:01:16,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 128 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:16,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:01:16,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 164 [2025-02-06 09:01:16,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:01:17,105 INFO L124 PetriNetUnfolderBase]: 168/1333 cut-off events. [2025-02-06 09:01:17,106 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2025-02-06 09:01:17,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1751 conditions, 1333 events. 168/1333 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 10436 event pairs, 47 based on Foata normal form. 0/1144 useless extension candidates. Maximal degree in co-relation 1746. Up to 243 conditions per place. [2025-02-06 09:01:17,119 INFO L140 encePairwiseOnDemand]: 148/164 looper letters, 35 selfloop transitions, 12 changer transitions 0/149 dead transitions. [2025-02-06 09:01:17,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 149 transitions, 407 flow [2025-02-06 09:01:17,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:01:17,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:01:17,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2025-02-06 09:01:17,123 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7804878048780488 [2025-02-06 09:01:17,123 INFO L175 Difference]: Start difference. First operand has 132 places, 128 transitions, 266 flow. Second operand 3 states and 384 transitions. [2025-02-06 09:01:17,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 149 transitions, 407 flow [2025-02-06 09:01:17,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 149 transitions, 407 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:01:17,130 INFO L231 Difference]: Finished difference. Result has 136 places, 140 transitions, 370 flow [2025-02-06 09:01:17,130 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=370, PETRI_PLACES=136, PETRI_TRANSITIONS=140} [2025-02-06 09:01:17,131 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, -25 predicate places. [2025-02-06 09:01:17,131 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 140 transitions, 370 flow [2025-02-06 09:01:17,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:17,131 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:01:17,131 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] [2025-02-06 09:01:17,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 09:01:17,131 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-02-06 09:01:17,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:01:17,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1410025649, now seen corresponding path program 1 times [2025-02-06 09:01:17,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:01:17,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577853638] [2025-02-06 09:01:17,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:01:17,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:01:17,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 09:01:17,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 09:01:17,153 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:17,153 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:01:17,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:01:17,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:01:17,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577853638] [2025-02-06 09:01:17,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577853638] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:01:17,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:01:17,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:01:17,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43525863] [2025-02-06 09:01:17,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:01:17,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:01:17,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:01:17,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:01:17,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:01:17,251 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 164 [2025-02-06 09:01:17,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 140 transitions, 370 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:17,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:01:17,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 164 [2025-02-06 09:01:17,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:01:17,405 INFO L124 PetriNetUnfolderBase]: 239/1731 cut-off events. [2025-02-06 09:01:17,405 INFO L125 PetriNetUnfolderBase]: For 372/393 co-relation queries the response was YES. [2025-02-06 09:01:17,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2636 conditions, 1731 events. 239/1731 cut-off events. For 372/393 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 14557 event pairs, 111 based on Foata normal form. 3/1494 useless extension candidates. Maximal degree in co-relation 2629. Up to 431 conditions per place. [2025-02-06 09:01:17,414 INFO L140 encePairwiseOnDemand]: 156/164 looper letters, 35 selfloop transitions, 10 changer transitions 0/153 dead transitions. [2025-02-06 09:01:17,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 153 transitions, 511 flow [2025-02-06 09:01:17,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:01:17,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:01:17,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2025-02-06 09:01:17,416 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7621951219512195 [2025-02-06 09:01:17,416 INFO L175 Difference]: Start difference. First operand has 136 places, 140 transitions, 370 flow. Second operand 3 states and 375 transitions. [2025-02-06 09:01:17,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 153 transitions, 511 flow [2025-02-06 09:01:17,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 153 transitions, 479 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:01:17,419 INFO L231 Difference]: Finished difference. Result has 138 places, 148 transitions, 432 flow [2025-02-06 09:01:17,420 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=432, PETRI_PLACES=138, PETRI_TRANSITIONS=148} [2025-02-06 09:01:17,420 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, -23 predicate places. [2025-02-06 09:01:17,420 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 148 transitions, 432 flow [2025-02-06 09:01:17,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:17,421 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:01:17,421 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] [2025-02-06 09:01:17,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 09:01:17,421 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-02-06 09:01:17,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:01:17,421 INFO L85 PathProgramCache]: Analyzing trace with hash 871143494, now seen corresponding path program 1 times [2025-02-06 09:01:17,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:01:17,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210387663] [2025-02-06 09:01:17,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:01:17,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:01:17,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 09:01:17,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 09:01:17,430 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:17,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:01:17,430 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:01:17,431 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 09:01:17,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 09:01:17,434 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:17,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:01:17,437 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:01:17,437 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:01:17,437 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2025-02-06 09:01:17,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2025-02-06 09:01:17,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2025-02-06 09:01:17,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2025-02-06 09:01:17,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2025-02-06 09:01:17,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2025-02-06 09:01:17,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2025-02-06 09:01:17,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2025-02-06 09:01:17,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2025-02-06 09:01:17,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2025-02-06 09:01:17,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2025-02-06 09:01:17,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2025-02-06 09:01:17,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2025-02-06 09:01:17,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2025-02-06 09:01:17,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2025-02-06 09:01:17,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2025-02-06 09:01:17,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2025-02-06 09:01:17,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2025-02-06 09:01:17,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2025-02-06 09:01:17,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2025-02-06 09:01:17,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2025-02-06 09:01:17,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2025-02-06 09:01:17,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2025-02-06 09:01:17,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2025-02-06 09:01:17,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2025-02-06 09:01:17,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2025-02-06 09:01:17,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2025-02-06 09:01:17,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2025-02-06 09:01:17,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2025-02-06 09:01:17,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2025-02-06 09:01:17,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2025-02-06 09:01:17,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2025-02-06 09:01:17,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2025-02-06 09:01:17,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2025-02-06 09:01:17,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2025-02-06 09:01:17,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2025-02-06 09:01:17,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2025-02-06 09:01:17,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2025-02-06 09:01:17,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2025-02-06 09:01:17,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2025-02-06 09:01:17,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2025-02-06 09:01:17,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2025-02-06 09:01:17,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2025-02-06 09:01:17,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2025-02-06 09:01:17,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2025-02-06 09:01:17,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2025-02-06 09:01:17,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 09:01:17,441 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-06 09:01:17,441 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:01:17,441 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-06 09:01:17,476 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:01:17,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 230 places, 235 transitions, 488 flow [2025-02-06 09:01:17,507 INFO L124 PetriNetUnfolderBase]: 12/260 cut-off events. [2025-02-06 09:01:17,508 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-06 09:01:17,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 260 events. 12/260 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 951 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 219. Up to 4 conditions per place. [2025-02-06 09:01:17,511 INFO L82 GeneralOperation]: Start removeDead. Operand has 230 places, 235 transitions, 488 flow [2025-02-06 09:01:17,514 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 230 places, 235 transitions, 488 flow [2025-02-06 09:01:17,515 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:01:17,516 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;@2afa8c73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:01:17,516 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2025-02-06 09:01:17,518 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:01:17,519 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-02-06 09:01:17,519 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:01:17,519 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:01:17,519 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:01:17,519 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-02-06 09:01:17,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:01:17,520 INFO L85 PathProgramCache]: Analyzing trace with hash 391485234, now seen corresponding path program 1 times [2025-02-06 09:01:17,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:01:17,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065903431] [2025-02-06 09:01:17,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:01:17,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:01:17,527 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 09:01:17,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 09:01:17,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:17,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:01:17,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:01:17,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:01:17,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065903431] [2025-02-06 09:01:17,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065903431] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:01:17,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:01:17,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 09:01:17,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427500509] [2025-02-06 09:01:17,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:01:17,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:01:17,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:01:17,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:01:17,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:01:17,548 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 235 [2025-02-06 09:01:17,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 235 transitions, 488 flow. Second operand has 2 states, 2 states have (on average 181.0) internal successors, (362), 2 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:17,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:01:17,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 235 [2025-02-06 09:01:17,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:01:17,739 INFO L124 PetriNetUnfolderBase]: 250/1758 cut-off events. [2025-02-06 09:01:17,739 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2025-02-06 09:01:17,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2234 conditions, 1758 events. 250/1758 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 14422 event pairs, 161 based on Foata normal form. 410/1870 useless extension candidates. Maximal degree in co-relation 1683. Up to 378 conditions per place. [2025-02-06 09:01:17,756 INFO L140 encePairwiseOnDemand]: 198/235 looper letters, 15 selfloop transitions, 0 changer transitions 0/183 dead transitions. [2025-02-06 09:01:17,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 183 transitions, 414 flow [2025-02-06 09:01:17,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:01:17,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 09:01:17,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 412 transitions. [2025-02-06 09:01:17,758 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8765957446808511 [2025-02-06 09:01:17,758 INFO L175 Difference]: Start difference. First operand has 230 places, 235 transitions, 488 flow. Second operand 2 states and 412 transitions. [2025-02-06 09:01:17,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 183 transitions, 414 flow [2025-02-06 09:01:17,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 183 transitions, 412 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-02-06 09:01:17,762 INFO L231 Difference]: Finished difference. Result has 188 places, 183 transitions, 382 flow [2025-02-06 09:01:17,763 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=382, PETRI_PLACES=188, PETRI_TRANSITIONS=183} [2025-02-06 09:01:17,765 INFO L279 CegarLoopForPetriNet]: 230 programPoint places, -42 predicate places. [2025-02-06 09:01:17,765 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 183 transitions, 382 flow [2025-02-06 09:01:17,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 181.0) internal successors, (362), 2 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:17,766 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:01:17,766 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] [2025-02-06 09:01:17,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 09:01:17,766 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-02-06 09:01:17,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:01:17,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1739784458, now seen corresponding path program 1 times [2025-02-06 09:01:17,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:01:17,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705369576] [2025-02-06 09:01:17,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:01:17,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:01:17,776 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 09:01:17,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 09:01:17,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:17,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:01:17,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:01:17,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:01:17,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705369576] [2025-02-06 09:01:17,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705369576] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:01:17,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:01:17,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:01:17,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383003029] [2025-02-06 09:01:17,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:01:17,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:01:17,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:01:17,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:01:17,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:01:17,858 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 235 [2025-02-06 09:01:17,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 183 transitions, 382 flow. Second operand has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:17,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:01:17,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 235 [2025-02-06 09:01:17,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:01:19,551 INFO L124 PetriNetUnfolderBase]: 5411/23183 cut-off events. [2025-02-06 09:01:19,552 INFO L125 PetriNetUnfolderBase]: For 625/625 co-relation queries the response was YES. [2025-02-06 09:01:19,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32442 conditions, 23183 events. 5411/23183 cut-off events. For 625/625 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 304956 event pairs, 1869 based on Foata normal form. 0/19600 useless extension candidates. Maximal degree in co-relation 32436. Up to 5475 conditions per place. [2025-02-06 09:01:19,662 INFO L140 encePairwiseOnDemand]: 211/235 looper letters, 53 selfloop transitions, 18 changer transitions 0/215 dead transitions. [2025-02-06 09:01:19,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 215 transitions, 598 flow [2025-02-06 09:01:19,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:01:19,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:01:19,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 545 transitions. [2025-02-06 09:01:19,666 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7730496453900709 [2025-02-06 09:01:19,666 INFO L175 Difference]: Start difference. First operand has 188 places, 183 transitions, 382 flow. Second operand 3 states and 545 transitions. [2025-02-06 09:01:19,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 215 transitions, 598 flow [2025-02-06 09:01:19,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 215 transitions, 598 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:01:19,669 INFO L231 Difference]: Finished difference. Result has 192 places, 201 transitions, 538 flow [2025-02-06 09:01:19,670 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=538, PETRI_PLACES=192, PETRI_TRANSITIONS=201} [2025-02-06 09:01:19,671 INFO L279 CegarLoopForPetriNet]: 230 programPoint places, -38 predicate places. [2025-02-06 09:01:19,671 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 201 transitions, 538 flow [2025-02-06 09:01:19,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:19,671 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:01:19,671 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] [2025-02-06 09:01:19,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 09:01:19,671 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-02-06 09:01:19,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:01:19,672 INFO L85 PathProgramCache]: Analyzing trace with hash -163981481, now seen corresponding path program 1 times [2025-02-06 09:01:19,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:01:19,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21079543] [2025-02-06 09:01:19,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:01:19,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:01:19,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 09:01:19,686 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 09:01:19,686 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:19,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:01:19,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:01:19,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:01:19,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21079543] [2025-02-06 09:01:19,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21079543] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:01:19,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:01:19,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:01:19,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300923421] [2025-02-06 09:01:19,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:01:19,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:01:19,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:01:19,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:01:19,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:01:19,777 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 235 [2025-02-06 09:01:19,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 201 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:19,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:01:19,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 235 [2025-02-06 09:01:19,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:01:22,068 INFO L124 PetriNetUnfolderBase]: 7453/33457 cut-off events. [2025-02-06 09:01:22,069 INFO L125 PetriNetUnfolderBase]: For 9305/10273 co-relation queries the response was YES. [2025-02-06 09:01:22,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54050 conditions, 33457 events. 7453/33457 cut-off events. For 9305/10273 co-relation queries the response was YES. Maximal size of possible extension queue 919. Compared 469906 event pairs, 3518 based on Foata normal form. 56/28457 useless extension candidates. Maximal degree in co-relation 54042. Up to 9785 conditions per place. [2025-02-06 09:01:22,362 INFO L140 encePairwiseOnDemand]: 223/235 looper letters, 53 selfloop transitions, 20 changer transitions 0/229 dead transitions. [2025-02-06 09:01:22,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 229 transitions, 798 flow [2025-02-06 09:01:22,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:01:22,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:01:22,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 540 transitions. [2025-02-06 09:01:22,364 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7659574468085106 [2025-02-06 09:01:22,364 INFO L175 Difference]: Start difference. First operand has 192 places, 201 transitions, 538 flow. Second operand 3 states and 540 transitions. [2025-02-06 09:01:22,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 229 transitions, 798 flow [2025-02-06 09:01:22,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 229 transitions, 746 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:01:22,378 INFO L231 Difference]: Finished difference. Result has 194 places, 219 transitions, 688 flow [2025-02-06 09:01:22,379 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=688, PETRI_PLACES=194, PETRI_TRANSITIONS=219} [2025-02-06 09:01:22,379 INFO L279 CegarLoopForPetriNet]: 230 programPoint places, -36 predicate places. [2025-02-06 09:01:22,379 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 219 transitions, 688 flow [2025-02-06 09:01:22,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:22,380 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:01:22,380 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:01:22,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 09:01:22,380 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-02-06 09:01:22,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:01:22,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1490310956, now seen corresponding path program 1 times [2025-02-06 09:01:22,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:01:22,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285147127] [2025-02-06 09:01:22,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:01:22,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:01:22,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-06 09:01:22,387 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-06 09:01:22,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:22,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:01:22,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:01:22,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:01:22,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285147127] [2025-02-06 09:01:22,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285147127] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:01:22,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:01:22,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:01:22,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17592258] [2025-02-06 09:01:22,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:01:22,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:01:22,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:01:22,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:01:22,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:01:22,448 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 235 [2025-02-06 09:01:22,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 219 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:22,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:01:22,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 235 [2025-02-06 09:01:22,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:01:25,363 INFO L124 PetriNetUnfolderBase]: 9179/38377 cut-off events. [2025-02-06 09:01:25,363 INFO L125 PetriNetUnfolderBase]: For 15394/16883 co-relation queries the response was YES. [2025-02-06 09:01:25,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66150 conditions, 38377 events. 9179/38377 cut-off events. For 15394/16883 co-relation queries the response was YES. Maximal size of possible extension queue 1126. Compared 543588 event pairs, 3917 based on Foata normal form. 64/32385 useless extension candidates. Maximal degree in co-relation 66141. Up to 11809 conditions per place. [2025-02-06 09:01:25,712 INFO L140 encePairwiseOnDemand]: 223/235 looper letters, 66 selfloop transitions, 28 changer transitions 0/252 dead transitions. [2025-02-06 09:01:25,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 252 transitions, 1039 flow [2025-02-06 09:01:25,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:01:25,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:01:25,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 539 transitions. [2025-02-06 09:01:25,714 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7645390070921986 [2025-02-06 09:01:25,714 INFO L175 Difference]: Start difference. First operand has 194 places, 219 transitions, 688 flow. Second operand 3 states and 539 transitions. [2025-02-06 09:01:25,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 252 transitions, 1039 flow [2025-02-06 09:01:25,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 252 transitions, 983 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 09:01:25,744 INFO L231 Difference]: Finished difference. Result has 196 places, 243 transitions, 934 flow [2025-02-06 09:01:25,744 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=934, PETRI_PLACES=196, PETRI_TRANSITIONS=243} [2025-02-06 09:01:25,745 INFO L279 CegarLoopForPetriNet]: 230 programPoint places, -34 predicate places. [2025-02-06 09:01:25,745 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 243 transitions, 934 flow [2025-02-06 09:01:25,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:25,746 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:01:25,746 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] [2025-02-06 09:01:25,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 09:01:25,746 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-02-06 09:01:25,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:01:25,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1420436718, now seen corresponding path program 1 times [2025-02-06 09:01:25,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:01:25,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129315030] [2025-02-06 09:01:25,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:01:25,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:01:25,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 09:01:25,755 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 09:01:25,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:25,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:01:25,755 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:01:25,757 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 09:01:25,760 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 09:01:25,760 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:25,760 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:01:25,767 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:01:25,771 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (54 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining) [2025-02-06 09:01:25,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2025-02-06 09:01:25,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2025-02-06 09:01:25,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2025-02-06 09:01:25,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2025-02-06 09:01:25,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2025-02-06 09:01:25,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2025-02-06 09:01:25,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2025-02-06 09:01:25,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2025-02-06 09:01:25,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2025-02-06 09:01:25,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2025-02-06 09:01:25,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 09:01:25,774 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-02-06 09:01:25,774 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:01:25,774 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-02-06 09:01:25,802 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:01:25,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 299 places, 306 transitions, 640 flow [2025-02-06 09:01:25,827 INFO L124 PetriNetUnfolderBase]: 16/340 cut-off events. [2025-02-06 09:01:25,827 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-06 09:01:25,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 340 events. 16/340 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1389 event pairs, 0 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 289. Up to 5 conditions per place. [2025-02-06 09:01:25,831 INFO L82 GeneralOperation]: Start removeDead. Operand has 299 places, 306 transitions, 640 flow [2025-02-06 09:01:25,979 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 299 places, 306 transitions, 640 flow [2025-02-06 09:01:25,979 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:01:25,980 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;@2afa8c73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:01:25,980 INFO L334 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2025-02-06 09:01:25,981 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:01:25,981 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-02-06 09:01:25,981 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:01:25,981 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:01:25,981 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:01:25,981 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2025-02-06 09:01:25,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:01:25,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1377593764, now seen corresponding path program 1 times [2025-02-06 09:01:25,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:01:25,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498630991] [2025-02-06 09:01:25,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:01:25,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:01:25,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 09:01:25,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 09:01:25,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:25,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:01:25,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:01:25,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:01:25,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498630991] [2025-02-06 09:01:25,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498630991] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:01:25,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:01:25,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 09:01:25,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780521894] [2025-02-06 09:01:25,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:01:25,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:01:25,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:01:26,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:01:26,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:01:26,000 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 306 [2025-02-06 09:01:26,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 306 transitions, 640 flow. Second operand has 2 states, 2 states have (on average 234.0) internal successors, (468), 2 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:26,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:01:26,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 306 [2025-02-06 09:01:26,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:01:26,687 INFO L124 PetriNetUnfolderBase]: 1933/8538 cut-off events. [2025-02-06 09:01:26,687 INFO L125 PetriNetUnfolderBase]: For 1169/1169 co-relation queries the response was YES. [2025-02-06 09:01:26,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11743 conditions, 8538 events. 1933/8538 cut-off events. For 1169/1169 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 93992 event pairs, 1329 based on Foata normal form. 2613/9783 useless extension candidates. Maximal degree in co-relation 8793. Up to 2591 conditions per place. [2025-02-06 09:01:26,805 INFO L140 encePairwiseOnDemand]: 257/306 looper letters, 20 selfloop transitions, 0 changer transitions 0/238 dead transitions. [2025-02-06 09:01:26,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 238 transitions, 544 flow [2025-02-06 09:01:26,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:01:26,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 09:01:26,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 535 transitions. [2025-02-06 09:01:26,807 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8741830065359477 [2025-02-06 09:01:26,807 INFO L175 Difference]: Start difference. First operand has 299 places, 306 transitions, 640 flow. Second operand 2 states and 535 transitions. [2025-02-06 09:01:26,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 238 transitions, 544 flow [2025-02-06 09:01:26,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 238 transitions, 538 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-02-06 09:01:26,810 INFO L231 Difference]: Finished difference. Result has 244 places, 238 transitions, 498 flow [2025-02-06 09:01:26,810 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=498, PETRI_PLACES=244, PETRI_TRANSITIONS=238} [2025-02-06 09:01:26,811 INFO L279 CegarLoopForPetriNet]: 299 programPoint places, -55 predicate places. [2025-02-06 09:01:26,811 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 238 transitions, 498 flow [2025-02-06 09:01:26,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 234.0) internal successors, (468), 2 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:26,811 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:01:26,811 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] [2025-02-06 09:01:26,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 09:01:26,812 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2025-02-06 09:01:26,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:01:26,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1017719784, now seen corresponding path program 1 times [2025-02-06 09:01:26,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:01:26,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703249566] [2025-02-06 09:01:26,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:01:26,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:01:26,816 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 09:01:26,818 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 09:01:26,818 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:01:26,818 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:01:26,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:01:26,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:01:26,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703249566] [2025-02-06 09:01:26,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703249566] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:01:26,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:01:26,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:01:26,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176800283] [2025-02-06 09:01:26,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:01:26,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:01:26,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:01:26,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:01:26,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:01:26,878 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 306 [2025-02-06 09:01:26,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 238 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:01:26,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:01:26,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 306 [2025-02-06 09:01:26,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:01:56,314 INFO L124 PetriNetUnfolderBase]: 120275/369502 cut-off events. [2025-02-06 09:01:56,314 INFO L125 PetriNetUnfolderBase]: For 9664/9664 co-relation queries the response was YES. [2025-02-06 09:01:59,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 546269 conditions, 369502 events. 120275/369502 cut-off events. For 9664/9664 co-relation queries the response was YES. Maximal size of possible extension queue 9286. Compared 6242699 event pairs, 45384 based on Foata normal form. 0/311626 useless extension candidates. Maximal degree in co-relation 546262. Up to 103254 conditions per place.