./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version f8ab0bd5 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d12d10876782f724294e520e736e39c29f3c74eafacabb114f7449f7b8388c75 --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 22:31:03,651 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 22:31:03,708 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-13 22:31:03,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 22:31:03,714 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 22:31:03,735 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 22:31:03,737 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 22:31:03,737 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 22:31:03,738 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 22:31:03,738 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 22:31:03,738 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 22:31:03,738 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 22:31:03,738 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 22:31:03,739 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 22:31:03,739 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 22:31:03,740 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 22:31:03,740 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 22:31:03,740 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 22:31:03,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 22:31:03,740 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 22:31:03,740 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 22:31:03,740 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 22:31:03,740 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 22:31:03,740 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 22:31:03,740 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 22:31:03,740 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 22:31:03,740 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 22:31:03,741 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 22:31:03,741 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 22:31:03,741 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 22:31:03,741 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 22:31:03,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:31:03,741 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 22:31:03,741 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 22:31:03,741 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 22:31:03,741 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 22:31:03,741 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 22:31:03,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 22:31:03,741 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 22:31:03,741 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 22:31:03,741 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 22:31:03,741 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 22:31:03,741 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d12d10876782f724294e520e736e39c29f3c74eafacabb114f7449f7b8388c75 [2025-03-13 22:31:03,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 22:31:03,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 22:31:03,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 22:31:03,992 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 22:31:03,992 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 22:31:03,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race-2.i [2025-03-13 22:31:05,136 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/231dfff62/381855e097b34cf3a40358f3debf7dee/FLAGa85aaa612 [2025-03-13 22:31:05,444 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 22:31:05,446 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race-2.i [2025-03-13 22:31:05,465 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/231dfff62/381855e097b34cf3a40358f3debf7dee/FLAGa85aaa612 [2025-03-13 22:31:05,705 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/231dfff62/381855e097b34cf3a40358f3debf7dee [2025-03-13 22:31:05,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 22:31:05,708 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 22:31:05,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 22:31:05,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 22:31:05,712 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 22:31:05,712 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:31:05" (1/1) ... [2025-03-13 22:31:05,713 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ea24f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:31:05, skipping insertion in model container [2025-03-13 22:31:05,713 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:31:05" (1/1) ... [2025-03-13 22:31:05,731 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 22:31:05,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:31:05,926 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 22:31:05,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:31:05,980 INFO L204 MainTranslator]: Completed translation [2025-03-13 22:31:05,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:31:05 WrapperNode [2025-03-13 22:31:05,980 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 22:31:05,981 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 22:31:05,981 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 22:31:05,981 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 22:31:05,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:31:05" (1/1) ... [2025-03-13 22:31:05,992 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:31:05" (1/1) ... [2025-03-13 22:31:06,010 INFO L138 Inliner]: procedures = 159, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 194 [2025-03-13 22:31:06,010 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 22:31:06,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 22:31:06,012 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 22:31:06,012 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 22:31:06,017 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:31:05" (1/1) ... [2025-03-13 22:31:06,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:31:05" (1/1) ... [2025-03-13 22:31:06,020 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:31:05" (1/1) ... [2025-03-13 22:31:06,027 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:31:05" (1/1) ... [2025-03-13 22:31:06,032 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:31:05" (1/1) ... [2025-03-13 22:31:06,036 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:31:05" (1/1) ... [2025-03-13 22:31:06,037 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:31:05" (1/1) ... [2025-03-13 22:31:06,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:31:05" (1/1) ... [2025-03-13 22:31:06,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 22:31:06,040 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 22:31:06,040 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 22:31:06,040 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 22:31:06,040 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:31:05" (1/1) ... [2025-03-13 22:31:06,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:31:06,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:31:06,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-13 22:31:06,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-13 22:31:06,086 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-13 22:31:06,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 22:31:06,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-13 22:31:06,086 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2025-03-13 22:31:06,086 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2025-03-13 22:31:06,086 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-13 22:31:06,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 22:31:06,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 22:31:06,088 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 22:31:06,204 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 22:31:06,205 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 22:31:06,478 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 22:31:06,479 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 22:31:06,479 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 22:31:06,511 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 22:31:06,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:31:06 BoogieIcfgContainer [2025-03-13 22:31:06,513 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 22:31:06,514 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 22:31:06,514 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 22:31:06,517 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 22:31:06,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 10:31:05" (1/3) ... [2025-03-13 22:31:06,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b58ac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:31:06, skipping insertion in model container [2025-03-13 22:31:06,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:31:05" (2/3) ... [2025-03-13 22:31:06,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b58ac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:31:06, skipping insertion in model container [2025-03-13 22:31:06,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:31:06" (3/3) ... [2025-03-13 22:31:06,519 INFO L128 eAbstractionObserver]: Analyzing ICFG thread-join-counter-outer-race-2.i [2025-03-13 22:31:06,530 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 22:31:06,531 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG thread-join-counter-outer-race-2.i that has 2 procedures, 230 locations, 1 initial locations, 2 loop locations, and 7 error locations. [2025-03-13 22:31:06,532 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 22:31:06,587 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 22:31:06,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 233 places, 233 transitions, 470 flow [2025-03-13 22:31:06,715 INFO L124 PetriNetUnfolderBase]: 5/274 cut-off events. [2025-03-13 22:31:06,718 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:31:06,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 274 events. 5/274 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 237 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 192. Up to 4 conditions per place. [2025-03-13 22:31:06,736 INFO L82 GeneralOperation]: Start removeDead. Operand has 233 places, 233 transitions, 470 flow [2025-03-13 22:31:06,740 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 233 places, 233 transitions, 470 flow [2025-03-13 22:31:06,745 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:31:06,756 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;@93b2db7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:31:06,757 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2025-03-13 22:31:06,784 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:31:06,784 INFO L124 PetriNetUnfolderBase]: 1/160 cut-off events. [2025-03-13 22:31:06,784 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:31:06,784 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:31:06,786 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:31:06,787 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-13 22:31:06,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:31:06,793 INFO L85 PathProgramCache]: Analyzing trace with hash 409692617, now seen corresponding path program 1 times [2025-03-13 22:31:06,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:31:06,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611404620] [2025-03-13 22:31:06,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:31:06,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:31:06,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-03-13 22:31:06,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-03-13 22:31:06,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:31:06,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:31:07,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:31:07,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:31:07,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611404620] [2025-03-13 22:31:07,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611404620] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:31:07,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:31:07,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:31:07,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120451130] [2025-03-13 22:31:07,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:31:07,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:31:07,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:31:07,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:31:07,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:31:07,146 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 233 [2025-03-13 22:31:07,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 233 transitions, 470 flow. Second operand has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:07,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:31:07,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 233 [2025-03-13 22:31:07,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:31:07,338 INFO L124 PetriNetUnfolderBase]: 116/821 cut-off events. [2025-03-13 22:31:07,339 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:31:07,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 821 events. 116/821 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4274 event pairs, 37 based on Foata normal form. 1/748 useless extension candidates. Maximal degree in co-relation 880. Up to 144 conditions per place. [2025-03-13 22:31:07,346 INFO L140 encePairwiseOnDemand]: 220/233 looper letters, 32 selfloop transitions, 8 changer transitions 1/249 dead transitions. [2025-03-13 22:31:07,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 249 transitions, 582 flow [2025-03-13 22:31:07,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:31:07,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:31:07,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 673 transitions. [2025-03-13 22:31:07,357 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9628040057224606 [2025-03-13 22:31:07,359 INFO L175 Difference]: Start difference. First operand has 233 places, 233 transitions, 470 flow. Second operand 3 states and 673 transitions. [2025-03-13 22:31:07,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 249 transitions, 582 flow [2025-03-13 22:31:07,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 249 transitions, 582 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:31:07,369 INFO L231 Difference]: Finished difference. Result has 237 places, 238 transitions, 534 flow [2025-03-13 22:31:07,371 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=237, PETRI_TRANSITIONS=238} [2025-03-13 22:31:07,375 INFO L279 CegarLoopForPetriNet]: 233 programPoint places, 4 predicate places. [2025-03-13 22:31:07,375 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 238 transitions, 534 flow [2025-03-13 22:31:07,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:07,375 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:31:07,376 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:31:07,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 22:31:07,376 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-13 22:31:07,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:31:07,377 INFO L85 PathProgramCache]: Analyzing trace with hash 238324913, now seen corresponding path program 1 times [2025-03-13 22:31:07,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:31:07,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087772142] [2025-03-13 22:31:07,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:31:07,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:31:07,406 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-13 22:31:07,418 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-13 22:31:07,419 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:31:07,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:31:07,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:31:07,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:31:07,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087772142] [2025-03-13 22:31:07,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087772142] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:31:07,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:31:07,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:31:07,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366017706] [2025-03-13 22:31:07,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:31:07,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:31:07,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:31:07,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:31:07,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:31:07,542 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 233 [2025-03-13 22:31:07,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 238 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:07,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:31:07,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 233 [2025-03-13 22:31:07,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:31:07,677 INFO L124 PetriNetUnfolderBase]: 134/959 cut-off events. [2025-03-13 22:31:07,680 INFO L125 PetriNetUnfolderBase]: For 166/171 co-relation queries the response was YES. [2025-03-13 22:31:07,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1449 conditions, 959 events. 134/959 cut-off events. For 166/171 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 5589 event pairs, 84 based on Foata normal form. 4/886 useless extension candidates. Maximal degree in co-relation 1226. Up to 266 conditions per place. [2025-03-13 22:31:07,684 INFO L140 encePairwiseOnDemand]: 227/233 looper letters, 29 selfloop transitions, 7 changer transitions 0/247 dead transitions. [2025-03-13 22:31:07,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 247 transitions, 634 flow [2025-03-13 22:31:07,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:31:07,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:31:07,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2025-03-13 22:31:07,689 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9413447782546495 [2025-03-13 22:31:07,689 INFO L175 Difference]: Start difference. First operand has 237 places, 238 transitions, 534 flow. Second operand 3 states and 658 transitions. [2025-03-13 22:31:07,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 247 transitions, 634 flow [2025-03-13 22:31:07,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 247 transitions, 614 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:31:07,695 INFO L231 Difference]: Finished difference. Result has 238 places, 243 transitions, 574 flow [2025-03-13 22:31:07,695 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=574, PETRI_PLACES=238, PETRI_TRANSITIONS=243} [2025-03-13 22:31:07,695 INFO L279 CegarLoopForPetriNet]: 233 programPoint places, 5 predicate places. [2025-03-13 22:31:07,696 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 243 transitions, 574 flow [2025-03-13 22:31:07,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:07,696 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:31:07,696 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:31:07,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-13 22:31:07,696 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-13 22:31:07,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:31:07,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1950905861, now seen corresponding path program 1 times [2025-03-13 22:31:07,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:31:07,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831089858] [2025-03-13 22:31:07,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:31:07,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:31:07,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-13 22:31:07,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-13 22:31:07,740 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:31:07,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:31:07,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:31:07,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:31:07,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831089858] [2025-03-13 22:31:07,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831089858] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:31:07,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:31:07,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:31:07,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156171832] [2025-03-13 22:31:07,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:31:07,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:31:07,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:31:07,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:31:07,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:31:07,815 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 233 [2025-03-13 22:31:07,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 243 transitions, 574 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:07,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:31:07,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 233 [2025-03-13 22:31:07,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:31:07,923 INFO L124 PetriNetUnfolderBase]: 93/896 cut-off events. [2025-03-13 22:31:07,923 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2025-03-13 22:31:07,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1253 conditions, 896 events. 93/896 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5181 event pairs, 51 based on Foata normal form. 0/833 useless extension candidates. Maximal degree in co-relation 1035. Up to 147 conditions per place. [2025-03-13 22:31:07,926 INFO L140 encePairwiseOnDemand]: 229/233 looper letters, 17 selfloop transitions, 3 changer transitions 1/249 dead transitions. [2025-03-13 22:31:07,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 249 transitions, 628 flow [2025-03-13 22:31:07,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:31:07,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:31:07,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 670 transitions. [2025-03-13 22:31:07,929 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9585121602288984 [2025-03-13 22:31:07,929 INFO L175 Difference]: Start difference. First operand has 238 places, 243 transitions, 574 flow. Second operand 3 states and 670 transitions. [2025-03-13 22:31:07,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 249 transitions, 628 flow [2025-03-13 22:31:07,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 249 transitions, 614 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:31:07,935 INFO L231 Difference]: Finished difference. Result has 240 places, 245 transitions, 582 flow [2025-03-13 22:31:07,935 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=582, PETRI_PLACES=240, PETRI_TRANSITIONS=245} [2025-03-13 22:31:07,936 INFO L279 CegarLoopForPetriNet]: 233 programPoint places, 7 predicate places. [2025-03-13 22:31:07,936 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 245 transitions, 582 flow [2025-03-13 22:31:07,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:07,937 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:31:07,937 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:31:07,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-13 22:31:07,937 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-13 22:31:07,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:31:07,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1957215895, now seen corresponding path program 1 times [2025-03-13 22:31:07,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:31:07,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432592712] [2025-03-13 22:31:07,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:31:07,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:31:07,966 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 178 statements into 1 equivalence classes. [2025-03-13 22:31:07,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 178 of 178 statements. [2025-03-13 22:31:07,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:31:07,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:31:08,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:31:08,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:31:08,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432592712] [2025-03-13 22:31:08,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432592712] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:31:08,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:31:08,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:31:08,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612439999] [2025-03-13 22:31:08,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:31:08,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:31:08,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:31:08,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:31:08,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:31:08,058 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 233 [2025-03-13 22:31:08,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 245 transitions, 582 flow. Second operand has 3 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:08,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:31:08,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 233 [2025-03-13 22:31:08,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:31:08,213 INFO L124 PetriNetUnfolderBase]: 175/1102 cut-off events. [2025-03-13 22:31:08,213 INFO L125 PetriNetUnfolderBase]: For 174/181 co-relation queries the response was YES. [2025-03-13 22:31:08,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1759 conditions, 1102 events. 175/1102 cut-off events. For 174/181 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 6767 event pairs, 79 based on Foata normal form. 3/1032 useless extension candidates. Maximal degree in co-relation 1622. Up to 303 conditions per place. [2025-03-13 22:31:08,219 INFO L140 encePairwiseOnDemand]: 226/233 looper letters, 30 selfloop transitions, 11 changer transitions 0/258 dead transitions. [2025-03-13 22:31:08,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 258 transitions, 704 flow [2025-03-13 22:31:08,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:31:08,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:31:08,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 665 transitions. [2025-03-13 22:31:08,222 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9513590844062947 [2025-03-13 22:31:08,222 INFO L175 Difference]: Start difference. First operand has 240 places, 245 transitions, 582 flow. Second operand 3 states and 665 transitions. [2025-03-13 22:31:08,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 258 transitions, 704 flow [2025-03-13 22:31:08,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 258 transitions, 698 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:31:08,229 INFO L231 Difference]: Finished difference. Result has 242 places, 252 transitions, 664 flow [2025-03-13 22:31:08,229 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=664, PETRI_PLACES=242, PETRI_TRANSITIONS=252} [2025-03-13 22:31:08,230 INFO L279 CegarLoopForPetriNet]: 233 programPoint places, 9 predicate places. [2025-03-13 22:31:08,230 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 252 transitions, 664 flow [2025-03-13 22:31:08,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:08,231 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:31:08,231 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:31:08,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-13 22:31:08,232 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-13 22:31:08,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:31:08,233 INFO L85 PathProgramCache]: Analyzing trace with hash -914810848, now seen corresponding path program 1 times [2025-03-13 22:31:08,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:31:08,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250176371] [2025-03-13 22:31:08,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:31:08,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:31:08,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-13 22:31:08,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-13 22:31:08,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:31:08,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:31:08,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:31:08,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:31:08,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250176371] [2025-03-13 22:31:08,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250176371] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:31:08,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:31:08,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-13 22:31:08,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294079129] [2025-03-13 22:31:08,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:31:08,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:31:08,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:31:08,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:31:08,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:31:08,509 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 233 [2025-03-13 22:31:08,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 252 transitions, 664 flow. Second operand has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:08,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:31:08,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 233 [2025-03-13 22:31:08,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:31:08,593 INFO L124 PetriNetUnfolderBase]: 23/510 cut-off events. [2025-03-13 22:31:08,593 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2025-03-13 22:31:08,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 510 events. 23/510 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1830 event pairs, 7 based on Foata normal form. 6/497 useless extension candidates. Maximal degree in co-relation 496. Up to 44 conditions per place. [2025-03-13 22:31:08,595 INFO L140 encePairwiseOnDemand]: 224/233 looper letters, 6 selfloop transitions, 9 changer transitions 2/234 dead transitions. [2025-03-13 22:31:08,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 234 transitions, 566 flow [2025-03-13 22:31:08,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:31:08,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:31:08,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 678 transitions. [2025-03-13 22:31:08,597 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9699570815450643 [2025-03-13 22:31:08,599 INFO L175 Difference]: Start difference. First operand has 242 places, 252 transitions, 664 flow. Second operand 3 states and 678 transitions. [2025-03-13 22:31:08,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 234 transitions, 566 flow [2025-03-13 22:31:08,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 234 transitions, 532 flow, removed 11 selfloop flow, removed 6 redundant places. [2025-03-13 22:31:08,605 INFO L231 Difference]: Finished difference. Result has 234 places, 231 transitions, 523 flow [2025-03-13 22:31:08,605 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=523, PETRI_PLACES=234, PETRI_TRANSITIONS=231} [2025-03-13 22:31:08,606 INFO L279 CegarLoopForPetriNet]: 233 programPoint places, 1 predicate places. [2025-03-13 22:31:08,606 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 231 transitions, 523 flow [2025-03-13 22:31:08,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:08,606 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:31:08,608 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:31:08,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-13 22:31:08,608 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-13 22:31:08,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:31:08,610 INFO L85 PathProgramCache]: Analyzing trace with hash -710249123, now seen corresponding path program 1 times [2025-03-13 22:31:08,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:31:08,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553189965] [2025-03-13 22:31:08,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:31:08,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:31:08,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-13 22:31:08,643 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-13 22:31:08,643 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:31:08,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:31:08,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:31:08,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:31:08,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553189965] [2025-03-13 22:31:08,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553189965] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:31:08,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:31:08,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:31:08,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351475432] [2025-03-13 22:31:08,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:31:08,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:31:08,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:31:08,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:31:08,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:31:08,709 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 233 [2025-03-13 22:31:08,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 231 transitions, 523 flow. Second operand has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:08,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:31:08,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 233 [2025-03-13 22:31:08,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:31:08,804 INFO L124 PetriNetUnfolderBase]: 65/676 cut-off events. [2025-03-13 22:31:08,805 INFO L125 PetriNetUnfolderBase]: For 139/148 co-relation queries the response was YES. [2025-03-13 22:31:08,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1086 conditions, 676 events. 65/676 cut-off events. For 139/148 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3242 event pairs, 31 based on Foata normal form. 1/657 useless extension candidates. Maximal degree in co-relation 866. Up to 137 conditions per place. [2025-03-13 22:31:08,808 INFO L140 encePairwiseOnDemand]: 228/233 looper letters, 23 selfloop transitions, 4 changer transitions 3/240 dead transitions. [2025-03-13 22:31:08,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 240 transitions, 619 flow [2025-03-13 22:31:08,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:31:08,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:31:08,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 669 transitions. [2025-03-13 22:31:08,810 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9570815450643777 [2025-03-13 22:31:08,810 INFO L175 Difference]: Start difference. First operand has 234 places, 231 transitions, 523 flow. Second operand 3 states and 669 transitions. [2025-03-13 22:31:08,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 240 transitions, 619 flow [2025-03-13 22:31:08,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 240 transitions, 604 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 22:31:08,815 INFO L231 Difference]: Finished difference. Result has 237 places, 231 transitions, 536 flow [2025-03-13 22:31:08,815 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=536, PETRI_PLACES=237, PETRI_TRANSITIONS=231} [2025-03-13 22:31:08,815 INFO L279 CegarLoopForPetriNet]: 233 programPoint places, 4 predicate places. [2025-03-13 22:31:08,816 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 231 transitions, 536 flow [2025-03-13 22:31:08,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:08,817 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:31:08,817 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:31:08,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-13 22:31:08,817 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2025-03-13 22:31:08,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:31:08,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1016175522, now seen corresponding path program 1 times [2025-03-13 22:31:08,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:31:08,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111236102] [2025-03-13 22:31:08,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:31:08,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:31:08,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 195 statements into 1 equivalence classes. [2025-03-13 22:31:08,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 195 of 195 statements. [2025-03-13 22:31:08,865 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:31:08,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:31:08,865 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-13 22:31:08,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 195 statements into 1 equivalence classes. [2025-03-13 22:31:08,894 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 195 of 195 statements. [2025-03-13 22:31:08,894 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:31:08,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:31:08,977 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-13 22:31:08,977 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-13 22:31:08,978 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2025-03-13 22:31:08,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2025-03-13 22:31:08,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2025-03-13 22:31:08,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2025-03-13 22:31:08,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2025-03-13 22:31:08,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2025-03-13 22:31:08,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2025-03-13 22:31:08,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2025-03-13 22:31:08,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2025-03-13 22:31:08,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2025-03-13 22:31:08,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2025-03-13 22:31:08,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-13 22:31:08,980 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:31:08,982 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-13 22:31:08,982 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-13 22:31:09,010 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 22:31:09,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 267 places, 265 transitions, 540 flow [2025-03-13 22:31:09,042 INFO L124 PetriNetUnfolderBase]: 7/355 cut-off events. [2025-03-13 22:31:09,042 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-13 22:31:09,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 355 events. 7/355 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 418 event pairs, 0 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 275. Up to 6 conditions per place. [2025-03-13 22:31:09,044 INFO L82 GeneralOperation]: Start removeDead. Operand has 267 places, 265 transitions, 540 flow [2025-03-13 22:31:09,047 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 267 places, 265 transitions, 540 flow [2025-03-13 22:31:09,048 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:31:09,050 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;@93b2db7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:31:09,051 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2025-03-13 22:31:09,060 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:31:09,060 INFO L124 PetriNetUnfolderBase]: 1/160 cut-off events. [2025-03-13 22:31:09,061 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:31:09,061 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:31:09,061 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:31:09,061 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:31:09,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:31:09,062 INFO L85 PathProgramCache]: Analyzing trace with hash -963022743, now seen corresponding path program 1 times [2025-03-13 22:31:09,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:31:09,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869662946] [2025-03-13 22:31:09,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:31:09,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:31:09,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-03-13 22:31:09,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-03-13 22:31:09,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:31:09,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:31:09,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:31:09,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:31:09,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869662946] [2025-03-13 22:31:09,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869662946] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:31:09,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:31:09,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:31:09,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762759910] [2025-03-13 22:31:09,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:31:09,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:31:09,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:31:09,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:31:09,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:31:09,155 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 265 [2025-03-13 22:31:09,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 265 transitions, 540 flow. Second operand has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:09,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:31:09,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 265 [2025-03-13 22:31:09,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:31:10,044 INFO L124 PetriNetUnfolderBase]: 2700/8735 cut-off events. [2025-03-13 22:31:10,045 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2025-03-13 22:31:10,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13188 conditions, 8735 events. 2700/8735 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 88848 event pairs, 968 based on Foata normal form. 1/7747 useless extension candidates. Maximal degree in co-relation 5927. Up to 2282 conditions per place. [2025-03-13 22:31:10,101 INFO L140 encePairwiseOnDemand]: 248/265 looper letters, 46 selfloop transitions, 11 changer transitions 1/289 dead transitions. [2025-03-13 22:31:10,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 289 transitions, 707 flow [2025-03-13 22:31:10,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:31:10,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:31:10,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 760 transitions. [2025-03-13 22:31:10,104 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9559748427672956 [2025-03-13 22:31:10,104 INFO L175 Difference]: Start difference. First operand has 267 places, 265 transitions, 540 flow. Second operand 3 states and 760 transitions. [2025-03-13 22:31:10,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 289 transitions, 707 flow [2025-03-13 22:31:10,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 289 transitions, 707 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:31:10,108 INFO L231 Difference]: Finished difference. Result has 271 places, 273 transitions, 630 flow [2025-03-13 22:31:10,109 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=630, PETRI_PLACES=271, PETRI_TRANSITIONS=273} [2025-03-13 22:31:10,109 INFO L279 CegarLoopForPetriNet]: 267 programPoint places, 4 predicate places. [2025-03-13 22:31:10,109 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 273 transitions, 630 flow [2025-03-13 22:31:10,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:10,110 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:31:10,110 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:31:10,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-13 22:31:10,110 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:31:10,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:31:10,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1777629402, now seen corresponding path program 1 times [2025-03-13 22:31:10,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:31:10,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744186530] [2025-03-13 22:31:10,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:31:10,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:31:10,126 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-13 22:31:10,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-13 22:31:10,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:31:10,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:31:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:31:10,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:31:10,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744186530] [2025-03-13 22:31:10,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744186530] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:31:10,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:31:10,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:31:10,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122822815] [2025-03-13 22:31:10,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:31:10,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:31:10,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:31:10,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:31:10,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:31:10,198 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 265 [2025-03-13 22:31:10,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 273 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:10,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:31:10,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 265 [2025-03-13 22:31:10,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:31:11,470 INFO L124 PetriNetUnfolderBase]: 2944/10783 cut-off events. [2025-03-13 22:31:11,470 INFO L125 PetriNetUnfolderBase]: For 3011/3115 co-relation queries the response was YES. [2025-03-13 22:31:11,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18652 conditions, 10783 events. 2944/10783 cut-off events. For 3011/3115 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 119413 event pairs, 1867 based on Foata normal form. 56/9768 useless extension candidates. Maximal degree in co-relation 16666. Up to 4168 conditions per place. [2025-03-13 22:31:11,514 INFO L140 encePairwiseOnDemand]: 257/265 looper letters, 42 selfloop transitions, 12 changer transitions 0/291 dead transitions. [2025-03-13 22:31:11,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 291 transitions, 798 flow [2025-03-13 22:31:11,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:31:11,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:31:11,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 746 transitions. [2025-03-13 22:31:11,516 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9383647798742139 [2025-03-13 22:31:11,516 INFO L175 Difference]: Start difference. First operand has 271 places, 273 transitions, 630 flow. Second operand 3 states and 746 transitions. [2025-03-13 22:31:11,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 291 transitions, 798 flow [2025-03-13 22:31:11,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 291 transitions, 768 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:31:11,524 INFO L231 Difference]: Finished difference. Result has 272 places, 283 transitions, 714 flow [2025-03-13 22:31:11,524 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=714, PETRI_PLACES=272, PETRI_TRANSITIONS=283} [2025-03-13 22:31:11,525 INFO L279 CegarLoopForPetriNet]: 267 programPoint places, 5 predicate places. [2025-03-13 22:31:11,525 INFO L471 AbstractCegarLoop]: Abstraction has has 272 places, 283 transitions, 714 flow [2025-03-13 22:31:11,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:11,525 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:31:11,526 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:31:11,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-13 22:31:11,526 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:31:11,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:31:11,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1477106693, now seen corresponding path program 1 times [2025-03-13 22:31:11,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:31:11,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537291620] [2025-03-13 22:31:11,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:31:11,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:31:11,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-13 22:31:11,545 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-13 22:31:11,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:31:11,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:31:11,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:31:11,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:31:11,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537291620] [2025-03-13 22:31:11,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537291620] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:31:11,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:31:11,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:31:11,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384817318] [2025-03-13 22:31:11,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:31:11,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:31:11,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:31:11,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:31:11,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:31:11,584 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 265 [2025-03-13 22:31:11,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 283 transitions, 714 flow. Second operand has 3 states, 3 states have (on average 243.33333333333334) internal successors, (730), 3 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:11,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:31:11,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 265 [2025-03-13 22:31:11,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:31:12,595 INFO L124 PetriNetUnfolderBase]: 2291/10347 cut-off events. [2025-03-13 22:31:12,595 INFO L125 PetriNetUnfolderBase]: For 1030/1094 co-relation queries the response was YES. [2025-03-13 22:31:12,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16095 conditions, 10347 events. 2291/10347 cut-off events. For 1030/1094 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 119392 event pairs, 1380 based on Foata normal form. 4/9331 useless extension candidates. Maximal degree in co-relation 14478. Up to 2487 conditions per place. [2025-03-13 22:31:12,632 INFO L140 encePairwiseOnDemand]: 260/265 looper letters, 28 selfloop transitions, 4 changer transitions 0/294 dead transitions. [2025-03-13 22:31:12,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 294 transitions, 800 flow [2025-03-13 22:31:12,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:31:12,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:31:12,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 759 transitions. [2025-03-13 22:31:12,635 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9547169811320755 [2025-03-13 22:31:12,635 INFO L175 Difference]: Start difference. First operand has 272 places, 283 transitions, 714 flow. Second operand 3 states and 759 transitions. [2025-03-13 22:31:12,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 294 transitions, 800 flow [2025-03-13 22:31:12,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 294 transitions, 776 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:31:12,644 INFO L231 Difference]: Finished difference. Result has 274 places, 286 transitions, 720 flow [2025-03-13 22:31:12,644 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=720, PETRI_PLACES=274, PETRI_TRANSITIONS=286} [2025-03-13 22:31:12,645 INFO L279 CegarLoopForPetriNet]: 267 programPoint places, 7 predicate places. [2025-03-13 22:31:12,645 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 286 transitions, 720 flow [2025-03-13 22:31:12,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 243.33333333333334) internal successors, (730), 3 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:12,646 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:31:12,646 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:31:12,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-13 22:31:12,647 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:31:12,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:31:12,648 INFO L85 PathProgramCache]: Analyzing trace with hash 629573654, now seen corresponding path program 1 times [2025-03-13 22:31:12,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:31:12,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263896957] [2025-03-13 22:31:12,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:31:12,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:31:12,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 178 statements into 1 equivalence classes. [2025-03-13 22:31:12,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 178 of 178 statements. [2025-03-13 22:31:12,673 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:31:12,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:31:12,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:31:12,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:31:12,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263896957] [2025-03-13 22:31:12,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263896957] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:31:12,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:31:12,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:31:12,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205541638] [2025-03-13 22:31:12,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:31:12,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:31:12,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:31:12,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:31:12,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:31:12,741 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 265 [2025-03-13 22:31:12,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 286 transitions, 720 flow. Second operand has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:12,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:31:12,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 265 [2025-03-13 22:31:12,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:31:13,277 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([706] L712-->L712-2: Formula: (= 0 |v_#race~threads_alive~0_3|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_3|} AuxVars[] AssignedVars[#race~threads_alive~0][251], [40#L692-2true, Black: 270#true, 227#L692-7true, 268#true, 61#L712-2true, Black: 277#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet11#1|), 280#true, Black: 282#(= |#race~data~0| 0), 266#true, 285#true]) [2025-03-13 22:31:13,277 INFO L294 olderBase$Statistics]: this new event has 228 ancestors and is cut-off event [2025-03-13 22:31:13,277 INFO L297 olderBase$Statistics]: existing Event has 223 ancestors and is cut-off event [2025-03-13 22:31:13,277 INFO L297 olderBase$Statistics]: existing Event has 228 ancestors and is cut-off event [2025-03-13 22:31:13,277 INFO L297 olderBase$Statistics]: existing Event has 223 ancestors and is cut-off event [2025-03-13 22:31:13,429 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([706] L712-->L712-2: Formula: (= 0 |v_#race~threads_alive~0_3|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_3|} AuxVars[] AssignedVars[#race~threads_alive~0][171], [Black: 270#true, 114#L694-3true, 227#L692-7true, 268#true, 61#L712-2true, Black: 277#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet11#1|), 280#true, Black: 282#(= |#race~data~0| 0), 266#true, 285#true]) [2025-03-13 22:31:13,430 INFO L294 olderBase$Statistics]: this new event has 230 ancestors and is cut-off event [2025-03-13 22:31:13,430 INFO L297 olderBase$Statistics]: existing Event has 225 ancestors and is cut-off event [2025-03-13 22:31:13,430 INFO L297 olderBase$Statistics]: existing Event has 225 ancestors and is cut-off event [2025-03-13 22:31:13,430 INFO L297 olderBase$Statistics]: existing Event has 230 ancestors and is cut-off event [2025-03-13 22:31:13,477 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([706] L712-->L712-2: Formula: (= 0 |v_#race~threads_alive~0_3|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_3|} AuxVars[] AssignedVars[#race~threads_alive~0][171], [Black: 270#true, 227#L692-7true, 268#true, 61#L712-2true, Black: 277#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet11#1|), 210#L694true, 280#true, Black: 282#(= |#race~data~0| 0), 266#true, 285#true]) [2025-03-13 22:31:13,478 INFO L294 olderBase$Statistics]: this new event has 231 ancestors and is cut-off event [2025-03-13 22:31:13,478 INFO L297 olderBase$Statistics]: existing Event has 226 ancestors and is cut-off event [2025-03-13 22:31:13,478 INFO L297 olderBase$Statistics]: existing Event has 226 ancestors and is cut-off event [2025-03-13 22:31:13,478 INFO L297 olderBase$Statistics]: existing Event has 231 ancestors and is cut-off event [2025-03-13 22:31:13,564 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([706] L712-->L712-2: Formula: (= 0 |v_#race~threads_alive~0_3|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_3|} AuxVars[] AssignedVars[#race~threads_alive~0][171], [Black: 270#true, 227#L692-7true, 268#true, 61#L712-2true, Black: 277#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet11#1|), 221#L695true, 280#true, Black: 282#(= |#race~data~0| 0), 266#true, 285#true]) [2025-03-13 22:31:13,564 INFO L294 olderBase$Statistics]: this new event has 233 ancestors and is cut-off event [2025-03-13 22:31:13,564 INFO L297 olderBase$Statistics]: existing Event has 228 ancestors and is cut-off event [2025-03-13 22:31:13,564 INFO L297 olderBase$Statistics]: existing Event has 228 ancestors and is cut-off event [2025-03-13 22:31:13,564 INFO L297 olderBase$Statistics]: existing Event has 233 ancestors and is cut-off event [2025-03-13 22:31:13,976 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([706] L712-->L712-2: Formula: (= 0 |v_#race~threads_alive~0_3|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_3|} AuxVars[] AssignedVars[#race~threads_alive~0][171], [Black: 270#true, 227#L692-7true, 268#true, 61#L712-2true, Black: 277#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet11#1|), 41#L697true, Black: 282#(= |#race~data~0| 0), 280#true, 266#true, 285#true]) [2025-03-13 22:31:13,977 INFO L294 olderBase$Statistics]: this new event has 243 ancestors and is cut-off event [2025-03-13 22:31:13,977 INFO L297 olderBase$Statistics]: existing Event has 238 ancestors and is cut-off event [2025-03-13 22:31:13,977 INFO L297 olderBase$Statistics]: existing Event has 243 ancestors and is cut-off event [2025-03-13 22:31:13,977 INFO L297 olderBase$Statistics]: existing Event has 238 ancestors and is cut-off event [2025-03-13 22:31:14,283 INFO L124 PetriNetUnfolderBase]: 4357/14868 cut-off events. [2025-03-13 22:31:14,283 INFO L125 PetriNetUnfolderBase]: For 5122/5554 co-relation queries the response was YES. [2025-03-13 22:31:14,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27211 conditions, 14868 events. 4357/14868 cut-off events. For 5122/5554 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 169447 event pairs, 2217 based on Foata normal form. 111/13359 useless extension candidates. Maximal degree in co-relation 25085. Up to 5572 conditions per place. [2025-03-13 22:31:14,377 INFO L140 encePairwiseOnDemand]: 256/265 looper letters, 49 selfloop transitions, 19 changer transitions 0/312 dead transitions. [2025-03-13 22:31:14,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 312 transitions, 957 flow [2025-03-13 22:31:14,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:31:14,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:31:14,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 754 transitions. [2025-03-13 22:31:14,379 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9484276729559749 [2025-03-13 22:31:14,380 INFO L175 Difference]: Start difference. First operand has 274 places, 286 transitions, 720 flow. Second operand 3 states and 754 transitions. [2025-03-13 22:31:14,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 312 transitions, 957 flow [2025-03-13 22:31:14,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 312 transitions, 949 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:31:14,393 INFO L231 Difference]: Finished difference. Result has 276 places, 301 transitions, 894 flow [2025-03-13 22:31:14,393 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=894, PETRI_PLACES=276, PETRI_TRANSITIONS=301} [2025-03-13 22:31:14,394 INFO L279 CegarLoopForPetriNet]: 267 programPoint places, 9 predicate places. [2025-03-13 22:31:14,394 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 301 transitions, 894 flow [2025-03-13 22:31:14,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:14,585 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:31:14,585 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:31:14,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-13 22:31:14,586 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:31:14,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:31:14,586 INFO L85 PathProgramCache]: Analyzing trace with hash -635328033, now seen corresponding path program 1 times [2025-03-13 22:31:14,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:31:14,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326107431] [2025-03-13 22:31:14,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:31:14,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:31:14,616 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-13 22:31:14,625 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-13 22:31:14,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:31:14,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:31:14,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:31:14,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:31:14,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326107431] [2025-03-13 22:31:14,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326107431] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:31:14,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:31:14,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-13 22:31:14,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704610052] [2025-03-13 22:31:14,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:31:14,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:31:14,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:31:14,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:31:14,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:31:14,744 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 265 [2025-03-13 22:31:14,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 301 transitions, 894 flow. Second operand has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:14,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:31:14,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 265 [2025-03-13 22:31:14,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:31:15,040 INFO L124 PetriNetUnfolderBase]: 455/3435 cut-off events. [2025-03-13 22:31:15,040 INFO L125 PetriNetUnfolderBase]: For 773/816 co-relation queries the response was YES. [2025-03-13 22:31:15,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5476 conditions, 3435 events. 455/3435 cut-off events. For 773/816 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 32184 event pairs, 150 based on Foata normal form. 71/3267 useless extension candidates. Maximal degree in co-relation 2748. Up to 485 conditions per place. [2025-03-13 22:31:15,061 INFO L140 encePairwiseOnDemand]: 253/265 looper letters, 15 selfloop transitions, 12 changer transitions 0/301 dead transitions. [2025-03-13 22:31:15,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 301 transitions, 883 flow [2025-03-13 22:31:15,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:31:15,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:31:15,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 770 transitions. [2025-03-13 22:31:15,067 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9685534591194969 [2025-03-13 22:31:15,067 INFO L175 Difference]: Start difference. First operand has 276 places, 301 transitions, 894 flow. Second operand 3 states and 770 transitions. [2025-03-13 22:31:15,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 301 transitions, 883 flow [2025-03-13 22:31:15,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 301 transitions, 861 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:31:15,075 INFO L231 Difference]: Finished difference. Result has 277 places, 298 transitions, 846 flow [2025-03-13 22:31:15,076 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=846, PETRI_PLACES=277, PETRI_TRANSITIONS=298} [2025-03-13 22:31:15,077 INFO L279 CegarLoopForPetriNet]: 267 programPoint places, 10 predicate places. [2025-03-13 22:31:15,077 INFO L471 AbstractCegarLoop]: Abstraction has has 277 places, 298 transitions, 846 flow [2025-03-13 22:31:15,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:15,077 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:31:15,078 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:31:15,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-13 22:31:15,078 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:31:15,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:31:15,079 INFO L85 PathProgramCache]: Analyzing trace with hash -430766308, now seen corresponding path program 1 times [2025-03-13 22:31:15,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:31:15,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378471763] [2025-03-13 22:31:15,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:31:15,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:31:15,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-13 22:31:15,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-13 22:31:15,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:31:15,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:31:15,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:31:15,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:31:15,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378471763] [2025-03-13 22:31:15,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378471763] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:31:15,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:31:15,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:31:15,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984270987] [2025-03-13 22:31:15,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:31:15,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:31:15,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:31:15,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:31:15,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:31:15,159 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 265 [2025-03-13 22:31:15,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 298 transitions, 846 flow. Second operand has 3 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:15,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:31:15,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 265 [2025-03-13 22:31:15,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:31:15,715 INFO L124 PetriNetUnfolderBase]: 1326/5995 cut-off events. [2025-03-13 22:31:15,715 INFO L125 PetriNetUnfolderBase]: For 2522/2706 co-relation queries the response was YES. [2025-03-13 22:31:15,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11965 conditions, 5995 events. 1326/5995 cut-off events. For 2522/2706 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 61023 event pairs, 633 based on Foata normal form. 8/5612 useless extension candidates. Maximal degree in co-relation 10722. Up to 1800 conditions per place. [2025-03-13 22:31:15,737 INFO L140 encePairwiseOnDemand]: 259/265 looper letters, 45 selfloop transitions, 7 changer transitions 0/318 dead transitions. [2025-03-13 22:31:15,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 318 transitions, 1036 flow [2025-03-13 22:31:15,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:31:15,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:31:15,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 759 transitions. [2025-03-13 22:31:15,739 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9547169811320755 [2025-03-13 22:31:15,739 INFO L175 Difference]: Start difference. First operand has 277 places, 298 transitions, 846 flow. Second operand 3 states and 759 transitions. [2025-03-13 22:31:15,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 318 transitions, 1036 flow [2025-03-13 22:31:15,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 318 transitions, 1015 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 22:31:15,745 INFO L231 Difference]: Finished difference. Result has 280 places, 303 transitions, 890 flow [2025-03-13 22:31:15,745 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=890, PETRI_PLACES=280, PETRI_TRANSITIONS=303} [2025-03-13 22:31:15,746 INFO L279 CegarLoopForPetriNet]: 267 programPoint places, 13 predicate places. [2025-03-13 22:31:15,746 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 303 transitions, 890 flow [2025-03-13 22:31:15,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:15,746 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:31:15,747 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:31:15,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-13 22:31:15,747 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:31:15,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:31:15,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1473450480, now seen corresponding path program 1 times [2025-03-13 22:31:15,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:31:15,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077683538] [2025-03-13 22:31:15,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:31:15,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:31:15,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 205 statements into 1 equivalence classes. [2025-03-13 22:31:15,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 205 of 205 statements. [2025-03-13 22:31:15,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:31:15,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:31:15,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:31:15,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:31:15,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077683538] [2025-03-13 22:31:15,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077683538] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:31:15,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:31:15,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:31:15,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516308374] [2025-03-13 22:31:15,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:31:15,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:31:15,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:31:15,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:31:15,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:31:15,826 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 265 [2025-03-13 22:31:15,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 303 transitions, 890 flow. Second operand has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:15,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:31:15,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 265 [2025-03-13 22:31:15,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:31:16,245 INFO L124 PetriNetUnfolderBase]: 820/4565 cut-off events. [2025-03-13 22:31:16,245 INFO L125 PetriNetUnfolderBase]: For 2624/2981 co-relation queries the response was YES. [2025-03-13 22:31:16,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9256 conditions, 4565 events. 820/4565 cut-off events. For 2624/2981 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 45913 event pairs, 395 based on Foata normal form. 8/4297 useless extension candidates. Maximal degree in co-relation 8261. Up to 1381 conditions per place. [2025-03-13 22:31:16,266 INFO L140 encePairwiseOnDemand]: 258/265 looper letters, 56 selfloop transitions, 11 changer transitions 0/318 dead transitions. [2025-03-13 22:31:16,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 318 transitions, 1092 flow [2025-03-13 22:31:16,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:31:16,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:31:16,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 749 transitions. [2025-03-13 22:31:16,268 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9421383647798742 [2025-03-13 22:31:16,268 INFO L175 Difference]: Start difference. First operand has 280 places, 303 transitions, 890 flow. Second operand 3 states and 749 transitions. [2025-03-13 22:31:16,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 318 transitions, 1092 flow [2025-03-13 22:31:16,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 318 transitions, 1078 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:31:16,275 INFO L231 Difference]: Finished difference. Result has 282 places, 310 transitions, 974 flow [2025-03-13 22:31:16,276 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=265, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=974, PETRI_PLACES=282, PETRI_TRANSITIONS=310} [2025-03-13 22:31:16,276 INFO L279 CegarLoopForPetriNet]: 267 programPoint places, 15 predicate places. [2025-03-13 22:31:16,276 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 310 transitions, 974 flow [2025-03-13 22:31:16,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:31:16,277 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:31:16,277 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:31:16,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-13 22:31:16,277 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2025-03-13 22:31:16,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:31:16,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1231275817, now seen corresponding path program 1 times [2025-03-13 22:31:16,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:31:16,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421247339] [2025-03-13 22:31:16,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:31:16,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:31:16,293 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 208 statements into 1 equivalence classes. [2025-03-13 22:31:16,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 208 of 208 statements. [2025-03-13 22:31:16,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:31:16,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:31:16,305 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-13 22:31:16,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 208 statements into 1 equivalence classes. [2025-03-13 22:31:16,320 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 208 of 208 statements. [2025-03-13 22:31:16,320 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:31:16,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:31:16,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-13 22:31:16,352 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-13 22:31:16,352 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2025-03-13 22:31:16,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2025-03-13 22:31:16,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2025-03-13 22:31:16,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2025-03-13 22:31:16,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 14 remaining) [2025-03-13 22:31:16,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2025-03-13 22:31:16,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2025-03-13 22:31:16,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2025-03-13 22:31:16,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2025-03-13 22:31:16,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2025-03-13 22:31:16,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2025-03-13 22:31:16,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2025-03-13 22:31:16,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2025-03-13 22:31:16,353 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2025-03-13 22:31:16,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-13 22:31:16,353 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:31:16,481 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2025-03-13 22:31:16,483 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2025-03-13 22:31:16,484 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2025-03-13 22:31:16,489 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2025-03-13 22:31:16,490 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-13 22:31:16,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.03 10:31:16 BasicIcfg [2025-03-13 22:31:16,495 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-13 22:31:16,495 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-13 22:31:16,495 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-13 22:31:16,496 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-13 22:31:16,496 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:31:06" (3/4) ... [2025-03-13 22:31:16,497 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-13 22:31:16,563 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2025-03-13 22:31:16,566 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2025-03-13 22:31:16,567 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2025-03-13 22:31:16,590 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 8. [2025-03-13 22:31:16,627 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-13 22:31:16,627 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-13 22:31:16,627 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-13 22:31:16,628 INFO L158 Benchmark]: Toolchain (without parser) took 10919.96ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 105.8MB in the beginning and 756.5MB in the end (delta: -650.7MB). Peak memory consumption was 609.5MB. Max. memory is 16.1GB. [2025-03-13 22:31:16,628 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 167.8MB. Free memory is still 94.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:31:16,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.01ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 85.6MB in the end (delta: 20.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-13 22:31:16,628 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.91ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 83.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:31:16,628 INFO L158 Benchmark]: Boogie Preprocessor took 27.32ms. Allocated memory is still 142.6MB. Free memory was 83.3MB in the beginning and 81.0MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:31:16,628 INFO L158 Benchmark]: IcfgBuilder took 472.97ms. Allocated memory is still 142.6MB. Free memory was 81.0MB in the beginning and 58.2MB in the end (delta: 22.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-13 22:31:16,628 INFO L158 Benchmark]: TraceAbstraction took 9980.74ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 58.2MB in the beginning and 823.6MB in the end (delta: -765.4MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2025-03-13 22:31:16,628 INFO L158 Benchmark]: Witness Printer took 131.62ms. Allocated memory is still 1.4GB. Free memory was 823.6MB in the beginning and 756.5MB in the end (delta: 67.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-03-13 22:31:16,629 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 167.8MB. Free memory is still 94.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.01ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 85.6MB in the end (delta: 20.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.91ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 83.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.32ms. Allocated memory is still 142.6MB. Free memory was 83.3MB in the beginning and 81.0MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 472.97ms. Allocated memory is still 142.6MB. Free memory was 81.0MB in the beginning and 58.2MB in the end (delta: 22.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 9980.74ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 58.2MB in the beginning and 823.6MB in the end (delta: -765.4MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * Witness Printer took 131.62ms. Allocated memory is still 1.4GB. Free memory was 823.6MB in the beginning and 756.5MB in the end (delta: 67.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 715]: Data race detected Data race detected The following path leads to a data race: [L685] 0 int threads_alive = 0; VAL [threads_alive=0] [L686] 0 pthread_mutex_t threads_alive_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [threads_alive=0, threads_alive_mutex={1:0}] [L687] 0 pthread_cond_t threads_alive_cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; VAL [threads_alive=0, threads_alive_mutex={1:0}] [L688] 0 int data = 0; VAL [data=0, threads_alive=0, threads_alive_mutex={1:0}] [L689] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [data=0, data_mutex={2:0}, threads_alive=0, threads_alive_mutex={1:0}] [L701] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data=0, data_mutex={2:0}, threads_alive=0, threads_alive_mutex={1:0}, threads_total=1] [L702] CALL 0 assume_abort_if_not(threads_total >= 0) [L682] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data=0, data_mutex={2:0}, threads_alive=0, threads_alive_mutex={1:0}] [L702] RET 0 assume_abort_if_not(threads_total >= 0) [L703] 0 int i = 0; VAL [data=0, data_mutex={2:0}, i=0, threads_alive=0, threads_alive_mutex={1:0}, threads_total=1] [L703] COND TRUE 0 i < threads_total VAL [data=0, data_mutex={2:0}, i=0, threads_alive=0, threads_alive_mutex={1:0}, threads_total=1] [L705] 0 threads_alive++ VAL [data=0, data_mutex={2:0}, i=0, threads_alive=1, threads_alive_mutex={1:0}, threads_total=1] [L707] 0 pthread_t tid; VAL [data=0, data_mutex={2:0}, i=0, threads_alive=1, threads_alive_mutex={1:0}, threads_total=1] [L708] FCALL, FORK 0 pthread_create(&tid, ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={2:0}, i=0, threads_alive=1, threads_alive_mutex={1:0}, threads_total=1, tid=-1] [L692] 1 threads_alive-- VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={2:0}, threads_alive=0, threads_alive_mutex={1:0}] [L703] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={2:0}, i=1, threads_alive=0, threads_alive_mutex={1:0}, threads_total=1] [L703] COND FALSE 0 !(i < threads_total) VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={2:0}, i=1, threads_alive=0, threads_alive_mutex={1:0}, threads_total=1] [L712] COND TRUE 0 \read(threads_alive) [L712] COND FALSE 0 !(\read(threads_alive)) VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={2:0}, threads_alive=0, threads_alive_mutex={1:0}, threads_total=1] [L715] 0 return data; VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={2:0}, threads_alive=0, threads_alive_mutex={1:0}, threads_total=1] [L696] 1 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={2:0}, threads_alive=0, threads_alive_mutex={1:0}] [L715] 0 return data; VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={2:0}, threads_alive=0, threads_alive_mutex={1:0}, threads_total=1] Now there is a data race on ~data~0 between C: data = __VERIFIER_nondet_int() [696] and C: return data; [715] - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 263 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.4s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 138 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 266 IncrementalHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 17 mSDtfsCounter, 266 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=664occurred in iteration=4, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1226 NumberOfCodeBlocks, 1226 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1025 ConstructedInterpolants, 0 QuantifiedInterpolants, 1059 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 295 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.3s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 281 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 126 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 464 IncrementalHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 36 mSDtfsCounter, 464 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=974occurred in iteration=7, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 1444 NumberOfCodeBlocks, 1444 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1229 ConstructedInterpolants, 0 QuantifiedInterpolants, 1265 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-03-13 22:31:16,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)