./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-atomic/szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e2fb8bed 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-atomic/szymanski.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 a3cd4be37ada319d324d40d8d6c18fff519996a186a93f33b3070275487295e3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 21:36:21,315 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 21:36:21,365 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 21:36:21,368 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 21:36:21,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 21:36:21,384 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 21:36:21,385 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 21:36:21,385 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 21:36:21,385 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 21:36:21,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 21:36:21,386 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 21:36:21,386 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 21:36:21,386 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 21:36:21,387 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 21:36:21,387 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 21:36:21,387 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 21:36:21,387 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 21:36:21,387 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 21:36:21,387 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 21:36:21,387 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 21:36:21,387 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 21:36:21,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 21:36:21,388 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 21:36:21,388 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 21:36:21,388 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 21:36:21,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 21:36:21,388 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 21:36:21,388 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 21:36:21,388 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 21:36:21,388 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 21:36:21,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 21:36:21,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 21:36:21,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 21:36:21,388 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 21:36:21,388 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 21:36:21,389 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 21:36:21,389 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 21:36:21,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 21:36:21,389 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 21:36:21,389 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 21:36:21,389 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 21:36:21,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 21:36:21,389 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 -> a3cd4be37ada319d324d40d8d6c18fff519996a186a93f33b3070275487295e3 [2025-03-08 21:36:21,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 21:36:21,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 21:36:21,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 21:36:21,596 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 21:36:21,597 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 21:36:21,597 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/szymanski.i [2025-03-08 21:36:22,707 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe456d8f/7307d923dae748ffb000d54ba6696008/FLAGa7dde79ea [2025-03-08 21:36:22,979 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 21:36:22,980 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i [2025-03-08 21:36:22,990 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe456d8f/7307d923dae748ffb000d54ba6696008/FLAGa7dde79ea [2025-03-08 21:36:23,001 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe456d8f/7307d923dae748ffb000d54ba6696008 [2025-03-08 21:36:23,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 21:36:23,006 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 21:36:23,008 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 21:36:23,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 21:36:23,012 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 21:36:23,013 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:36:23" (1/1) ... [2025-03-08 21:36:23,013 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92e2f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:36:23, skipping insertion in model container [2025-03-08 21:36:23,013 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:36:23" (1/1) ... [2025-03-08 21:36:23,042 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 21:36:23,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 21:36:23,238 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 21:36:23,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 21:36:23,291 INFO L204 MainTranslator]: Completed translation [2025-03-08 21:36:23,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:36:23 WrapperNode [2025-03-08 21:36:23,292 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 21:36:23,293 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 21:36:23,293 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 21:36:23,294 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 21:36:23,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:36:23" (1/1) ... [2025-03-08 21:36:23,304 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:36:23" (1/1) ... [2025-03-08 21:36:23,316 INFO L138 Inliner]: procedures = 166, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2025-03-08 21:36:23,317 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 21:36:23,317 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 21:36:23,317 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 21:36:23,317 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 21:36:23,325 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:36:23" (1/1) ... [2025-03-08 21:36:23,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:36:23" (1/1) ... [2025-03-08 21:36:23,327 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:36:23" (1/1) ... [2025-03-08 21:36:23,327 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:36:23" (1/1) ... [2025-03-08 21:36:23,330 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:36:23" (1/1) ... [2025-03-08 21:36:23,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:36:23" (1/1) ... [2025-03-08 21:36:23,335 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:36:23" (1/1) ... [2025-03-08 21:36:23,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:36:23" (1/1) ... [2025-03-08 21:36:23,337 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 21:36:23,338 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 21:36:23,338 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 21:36:23,338 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 21:36:23,339 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:36:23" (1/1) ... [2025-03-08 21:36:23,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 21:36:23,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:36:23,366 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) [2025-03-08 21:36:23,368 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 [2025-03-08 21:36:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2025-03-08 21:36:23,385 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2025-03-08 21:36:23,385 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-03-08 21:36:23,385 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-03-08 21:36:23,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 21:36:23,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 21:36:23,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 21:36:23,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 21:36:23,386 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 21:36:23,475 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 21:36:23,476 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 21:36:23,594 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 21:36:23,594 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 21:36:23,611 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 21:36:23,611 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 21:36:23,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:36:23 BoogieIcfgContainer [2025-03-08 21:36:23,611 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 21:36:23,613 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 21:36:23,613 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 21:36:23,616 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 21:36:23,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 09:36:23" (1/3) ... [2025-03-08 21:36:23,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d26f549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:36:23, skipping insertion in model container [2025-03-08 21:36:23,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:36:23" (2/3) ... [2025-03-08 21:36:23,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d26f549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:36:23, skipping insertion in model container [2025-03-08 21:36:23,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:36:23" (3/3) ... [2025-03-08 21:36:23,617 INFO L128 eAbstractionObserver]: Analyzing ICFG szymanski.i [2025-03-08 21:36:23,627 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 21:36:23,628 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG szymanski.i that has 3 procedures, 88 locations, 1 initial locations, 8 loop locations, and 4 error locations. [2025-03-08 21:36:23,628 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 21:36:23,677 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-08 21:36:23,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 101 transitions, 216 flow [2025-03-08 21:36:23,753 INFO L124 PetriNetUnfolderBase]: 14/99 cut-off events. [2025-03-08 21:36:23,756 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-08 21:36:23,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 99 events. 14/99 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 130 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 78. Up to 3 conditions per place. [2025-03-08 21:36:23,761 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 101 transitions, 216 flow [2025-03-08 21:36:23,765 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 94 transitions, 197 flow [2025-03-08 21:36:23,771 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 21:36:23,781 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;@295a5ab7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 21:36:23,782 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2025-03-08 21:36:23,798 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 21:36:23,800 INFO L124 PetriNetUnfolderBase]: 5/49 cut-off events. [2025-03-08 21:36:23,800 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:36:23,800 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:36:23,801 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] [2025-03-08 21:36:23,801 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:36:23,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:36:23,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1424493091, now seen corresponding path program 1 times [2025-03-08 21:36:23,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:36:23,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001893498] [2025-03-08 21:36:23,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:36:23,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:36:23,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-08 21:36:23,904 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-08 21:36:23,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:36:23,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:36:24,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:36:24,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:36:24,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001893498] [2025-03-08 21:36:24,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001893498] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:36:24,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:36:24,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:36:24,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257928874] [2025-03-08 21:36:24,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:36:24,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:36:24,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:36:24,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:36:24,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:36:24,069 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 101 [2025-03-08 21:36:24,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 94 transitions, 197 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2025-03-08 21:36:24,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:36:24,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 101 [2025-03-08 21:36:24,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:36:24,167 INFO L124 PetriNetUnfolderBase]: 145/454 cut-off events. [2025-03-08 21:36:24,167 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2025-03-08 21:36:24,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 454 events. 145/454 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2286 event pairs, 72 based on Foata normal form. 43/408 useless extension candidates. Maximal degree in co-relation 637. Up to 177 conditions per place. [2025-03-08 21:36:24,172 INFO L140 encePairwiseOnDemand]: 91/101 looper letters, 26 selfloop transitions, 5 changer transitions 0/98 dead transitions. [2025-03-08 21:36:24,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 98 transitions, 270 flow [2025-03-08 21:36:24,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:36:24,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:36:24,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2025-03-08 21:36:24,181 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8679867986798679 [2025-03-08 21:36:24,182 INFO L175 Difference]: Start difference. First operand has 87 places, 94 transitions, 197 flow. Second operand 3 states and 263 transitions. [2025-03-08 21:36:24,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 98 transitions, 270 flow [2025-03-08 21:36:24,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 98 transitions, 264 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-08 21:36:24,190 INFO L231 Difference]: Finished difference. Result has 86 places, 92 transitions, 218 flow [2025-03-08 21:36:24,192 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=86, PETRI_TRANSITIONS=92} [2025-03-08 21:36:24,195 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, -1 predicate places. [2025-03-08 21:36:24,196 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 92 transitions, 218 flow [2025-03-08 21:36:24,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2025-03-08 21:36:24,196 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:36:24,197 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] [2025-03-08 21:36:24,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 21:36:24,197 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:36:24,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:36:24,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1498417141, now seen corresponding path program 1 times [2025-03-08 21:36:24,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:36:24,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54550331] [2025-03-08 21:36:24,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:36:24,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:36:24,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-08 21:36:24,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-08 21:36:24,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:36:24,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:36:24,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:36:24,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:36:24,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54550331] [2025-03-08 21:36:24,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54550331] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:36:24,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:36:24,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:36:24,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607459466] [2025-03-08 21:36:24,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:36:24,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:36:24,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:36:24,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:36:24,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:36:24,269 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 101 [2025-03-08 21:36:24,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 92 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2025-03-08 21:36:24,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:36:24,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 101 [2025-03-08 21:36:24,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:36:24,375 INFO L124 PetriNetUnfolderBase]: 147/543 cut-off events. [2025-03-08 21:36:24,376 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2025-03-08 21:36:24,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 876 conditions, 543 events. 147/543 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2903 event pairs, 39 based on Foata normal form. 0/451 useless extension candidates. Maximal degree in co-relation 771. Up to 128 conditions per place. [2025-03-08 21:36:24,379 INFO L140 encePairwiseOnDemand]: 93/101 looper letters, 34 selfloop transitions, 7 changer transitions 0/110 dead transitions. [2025-03-08 21:36:24,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 110 transitions, 347 flow [2025-03-08 21:36:24,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:36:24,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:36:24,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2025-03-08 21:36:24,381 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8778877887788779 [2025-03-08 21:36:24,381 INFO L175 Difference]: Start difference. First operand has 86 places, 92 transitions, 218 flow. Second operand 3 states and 266 transitions. [2025-03-08 21:36:24,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 110 transitions, 347 flow [2025-03-08 21:36:24,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 110 transitions, 335 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 21:36:24,384 INFO L231 Difference]: Finished difference. Result has 88 places, 98 transitions, 270 flow [2025-03-08 21:36:24,384 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=270, PETRI_PLACES=88, PETRI_TRANSITIONS=98} [2025-03-08 21:36:24,384 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 1 predicate places. [2025-03-08 21:36:24,384 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 98 transitions, 270 flow [2025-03-08 21:36:24,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2025-03-08 21:36:24,385 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:36:24,385 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:36:24,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 21:36:24,385 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:36:24,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:36:24,385 INFO L85 PathProgramCache]: Analyzing trace with hash -349978269, now seen corresponding path program 1 times [2025-03-08 21:36:24,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:36:24,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986415435] [2025-03-08 21:36:24,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:36:24,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:36:24,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-08 21:36:24,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-08 21:36:24,396 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:36:24,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:36:24,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:36:24,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:36:24,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986415435] [2025-03-08 21:36:24,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986415435] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:36:24,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:36:24,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:36:24,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805365630] [2025-03-08 21:36:24,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:36:24,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:36:24,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:36:24,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:36:24,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:36:24,438 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 101 [2025-03-08 21:36:24,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 98 transitions, 270 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2025-03-08 21:36:24,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:36:24,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 101 [2025-03-08 21:36:24,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:36:24,532 INFO L124 PetriNetUnfolderBase]: 180/644 cut-off events. [2025-03-08 21:36:24,532 INFO L125 PetriNetUnfolderBase]: For 214/220 co-relation queries the response was YES. [2025-03-08 21:36:24,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1157 conditions, 644 events. 180/644 cut-off events. For 214/220 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3672 event pairs, 73 based on Foata normal form. 0/539 useless extension candidates. Maximal degree in co-relation 1054. Up to 222 conditions per place. [2025-03-08 21:36:24,536 INFO L140 encePairwiseOnDemand]: 95/101 looper letters, 26 selfloop transitions, 7 changer transitions 6/108 dead transitions. [2025-03-08 21:36:24,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 108 transitions, 373 flow [2025-03-08 21:36:24,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:36:24,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:36:24,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2025-03-08 21:36:24,539 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8481848184818482 [2025-03-08 21:36:24,539 INFO L175 Difference]: Start difference. First operand has 88 places, 98 transitions, 270 flow. Second operand 3 states and 257 transitions. [2025-03-08 21:36:24,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 108 transitions, 373 flow [2025-03-08 21:36:24,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 108 transitions, 357 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 21:36:24,543 INFO L231 Difference]: Finished difference. Result has 90 places, 98 transitions, 290 flow [2025-03-08 21:36:24,543 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=90, PETRI_TRANSITIONS=98} [2025-03-08 21:36:24,543 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 3 predicate places. [2025-03-08 21:36:24,543 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 98 transitions, 290 flow [2025-03-08 21:36:24,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2025-03-08 21:36:24,544 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:36:24,544 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] [2025-03-08 21:36:24,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 21:36:24,544 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:36:24,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:36:24,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1579095477, now seen corresponding path program 1 times [2025-03-08 21:36:24,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:36:24,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811713050] [2025-03-08 21:36:24,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:36:24,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:36:24,561 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 21:36:24,571 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 21:36:24,572 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:36:24,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:36:24,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:36:24,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:36:24,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811713050] [2025-03-08 21:36:24,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811713050] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:36:24,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:36:24,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 21:36:24,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509478473] [2025-03-08 21:36:24,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:36:24,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:36:24,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:36:24,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:36:24,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:36:24,660 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 101 [2025-03-08 21:36:24,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 98 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2025-03-08 21:36:24,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:36:24,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 101 [2025-03-08 21:36:24,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:36:24,744 INFO L124 PetriNetUnfolderBase]: 146/631 cut-off events. [2025-03-08 21:36:24,745 INFO L125 PetriNetUnfolderBase]: For 162/168 co-relation queries the response was YES. [2025-03-08 21:36:24,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1118 conditions, 631 events. 146/631 cut-off events. For 162/168 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3635 event pairs, 47 based on Foata normal form. 14/577 useless extension candidates. Maximal degree in co-relation 994. Up to 126 conditions per place. [2025-03-08 21:36:24,750 INFO L140 encePairwiseOnDemand]: 91/101 looper letters, 25 selfloop transitions, 6 changer transitions 0/110 dead transitions. [2025-03-08 21:36:24,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 110 transitions, 379 flow [2025-03-08 21:36:24,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:36:24,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:36:24,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2025-03-08 21:36:24,753 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8778877887788779 [2025-03-08 21:36:24,753 INFO L175 Difference]: Start difference. First operand has 90 places, 98 transitions, 290 flow. Second operand 3 states and 266 transitions. [2025-03-08 21:36:24,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 110 transitions, 379 flow [2025-03-08 21:36:24,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 110 transitions, 365 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 21:36:24,758 INFO L231 Difference]: Finished difference. Result has 92 places, 103 transitions, 328 flow [2025-03-08 21:36:24,758 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=92, PETRI_TRANSITIONS=103} [2025-03-08 21:36:24,759 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 5 predicate places. [2025-03-08 21:36:24,759 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 103 transitions, 328 flow [2025-03-08 21:36:24,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2025-03-08 21:36:24,760 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:36:24,760 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] [2025-03-08 21:36:24,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 21:36:24,760 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:36:24,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:36:24,761 INFO L85 PathProgramCache]: Analyzing trace with hash 970744191, now seen corresponding path program 2 times [2025-03-08 21:36:24,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:36:24,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812972505] [2025-03-08 21:36:24,762 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 21:36:24,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:36:24,783 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 44 statements into 1 equivalence classes. [2025-03-08 21:36:24,787 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 21:36:24,787 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 21:36:24,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:36:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:36:24,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:36:24,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812972505] [2025-03-08 21:36:24,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812972505] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:36:24,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:36:24,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 21:36:24,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536072836] [2025-03-08 21:36:24,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:36:24,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:36:24,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:36:24,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:36:24,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:36:24,840 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 101 [2025-03-08 21:36:24,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 103 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2025-03-08 21:36:24,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:36:24,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 101 [2025-03-08 21:36:24,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:36:24,913 INFO L124 PetriNetUnfolderBase]: 165/679 cut-off events. [2025-03-08 21:36:24,914 INFO L125 PetriNetUnfolderBase]: For 274/290 co-relation queries the response was YES. [2025-03-08 21:36:24,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 679 events. 165/679 cut-off events. For 274/290 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3884 event pairs, 39 based on Foata normal form. 8/602 useless extension candidates. Maximal degree in co-relation 1185. Up to 102 conditions per place. [2025-03-08 21:36:24,917 INFO L140 encePairwiseOnDemand]: 91/101 looper letters, 27 selfloop transitions, 9 changer transitions 0/115 dead transitions. [2025-03-08 21:36:24,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 115 transitions, 439 flow [2025-03-08 21:36:24,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:36:24,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:36:24,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2025-03-08 21:36:24,918 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8745874587458746 [2025-03-08 21:36:24,918 INFO L175 Difference]: Start difference. First operand has 92 places, 103 transitions, 328 flow. Second operand 3 states and 265 transitions. [2025-03-08 21:36:24,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 115 transitions, 439 flow [2025-03-08 21:36:24,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 115 transitions, 423 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 21:36:24,923 INFO L231 Difference]: Finished difference. Result has 94 places, 108 transitions, 386 flow [2025-03-08 21:36:24,923 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=94, PETRI_TRANSITIONS=108} [2025-03-08 21:36:24,926 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 7 predicate places. [2025-03-08 21:36:24,926 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 108 transitions, 386 flow [2025-03-08 21:36:24,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2025-03-08 21:36:24,926 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:36:24,926 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] [2025-03-08 21:36:24,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 21:36:24,926 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:36:24,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:36:24,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1741720129, now seen corresponding path program 3 times [2025-03-08 21:36:24,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:36:24,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101321262] [2025-03-08 21:36:24,927 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-08 21:36:24,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:36:24,936 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 44 statements into 1 equivalence classes. [2025-03-08 21:36:24,939 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 21:36:24,940 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-08 21:36:24,940 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:36:24,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:36:24,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:36:24,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101321262] [2025-03-08 21:36:24,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101321262] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:36:24,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:36:24,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 21:36:24,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761156248] [2025-03-08 21:36:24,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:36:24,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:36:24,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:36:24,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:36:24,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:36:24,973 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 101 [2025-03-08 21:36:24,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 108 transitions, 386 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2025-03-08 21:36:24,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:36:24,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 101 [2025-03-08 21:36:24,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:36:25,043 INFO L124 PetriNetUnfolderBase]: 164/659 cut-off events. [2025-03-08 21:36:25,043 INFO L125 PetriNetUnfolderBase]: For 514/539 co-relation queries the response was YES. [2025-03-08 21:36:25,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1393 conditions, 659 events. 164/659 cut-off events. For 514/539 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3707 event pairs, 37 based on Foata normal form. 9/575 useless extension candidates. Maximal degree in co-relation 1267. Up to 166 conditions per place. [2025-03-08 21:36:25,046 INFO L140 encePairwiseOnDemand]: 92/101 looper letters, 31 selfloop transitions, 5 changer transitions 1/115 dead transitions. [2025-03-08 21:36:25,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 115 transitions, 479 flow [2025-03-08 21:36:25,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:36:25,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:36:25,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2025-03-08 21:36:25,047 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8679867986798679 [2025-03-08 21:36:25,047 INFO L175 Difference]: Start difference. First operand has 94 places, 108 transitions, 386 flow. Second operand 3 states and 263 transitions. [2025-03-08 21:36:25,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 115 transitions, 479 flow [2025-03-08 21:36:25,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 115 transitions, 461 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 21:36:25,050 INFO L231 Difference]: Finished difference. Result has 96 places, 107 transitions, 402 flow [2025-03-08 21:36:25,051 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=96, PETRI_TRANSITIONS=107} [2025-03-08 21:36:25,052 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 9 predicate places. [2025-03-08 21:36:25,052 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 107 transitions, 402 flow [2025-03-08 21:36:25,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2025-03-08 21:36:25,052 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:36:25,052 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] [2025-03-08 21:36:25,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 21:36:25,052 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:36:25,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:36:25,053 INFO L85 PathProgramCache]: Analyzing trace with hash -281775617, now seen corresponding path program 4 times [2025-03-08 21:36:25,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:36:25,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197115576] [2025-03-08 21:36:25,053 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-08 21:36:25,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:36:25,064 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 44 statements into 2 equivalence classes. [2025-03-08 21:36:25,066 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 42 of 44 statements. [2025-03-08 21:36:25,066 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-03-08 21:36:25,066 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:36:25,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:36:25,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:36:25,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197115576] [2025-03-08 21:36:25,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197115576] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:36:25,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:36:25,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 21:36:25,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036434656] [2025-03-08 21:36:25,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:36:25,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:36:25,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:36:25,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:36:25,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:36:25,113 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 101 [2025-03-08 21:36:25,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 107 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2025-03-08 21:36:25,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:36:25,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 101 [2025-03-08 21:36:25,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:36:25,176 INFO L124 PetriNetUnfolderBase]: 161/539 cut-off events. [2025-03-08 21:36:25,176 INFO L125 PetriNetUnfolderBase]: For 465/484 co-relation queries the response was YES. [2025-03-08 21:36:25,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1225 conditions, 539 events. 161/539 cut-off events. For 465/484 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2603 event pairs, 44 based on Foata normal form. 16/527 useless extension candidates. Maximal degree in co-relation 1111. Up to 156 conditions per place. [2025-03-08 21:36:25,178 INFO L140 encePairwiseOnDemand]: 91/101 looper letters, 0 selfloop transitions, 0 changer transitions 110/110 dead transitions. [2025-03-08 21:36:25,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 110 transitions, 501 flow [2025-03-08 21:36:25,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:36:25,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:36:25,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2025-03-08 21:36:25,191 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8778877887788779 [2025-03-08 21:36:25,191 INFO L175 Difference]: Start difference. First operand has 96 places, 107 transitions, 402 flow. Second operand 3 states and 266 transitions. [2025-03-08 21:36:25,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 110 transitions, 501 flow [2025-03-08 21:36:25,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 110 transitions, 455 flow, removed 9 selfloop flow, removed 6 redundant places. [2025-03-08 21:36:25,194 INFO L231 Difference]: Finished difference. Result has 88 places, 0 transitions, 0 flow [2025-03-08 21:36:25,194 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=88, PETRI_TRANSITIONS=0} [2025-03-08 21:36:25,195 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 1 predicate places. [2025-03-08 21:36:25,195 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 0 transitions, 0 flow [2025-03-08 21:36:25,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2025-03-08 21:36:25,198 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2025-03-08 21:36:25,199 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2025-03-08 21:36:25,199 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2025-03-08 21:36:25,199 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2025-03-08 21:36:25,199 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2025-03-08 21:36:25,199 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2025-03-08 21:36:25,199 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2025-03-08 21:36:25,199 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2025-03-08 21:36:25,199 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2025-03-08 21:36:25,199 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2025-03-08 21:36:25,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 21:36:25,200 INFO L422 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2025-03-08 21:36:25,206 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-08 21:36:25,206 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 21:36:25,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 09:36:25 BasicIcfg [2025-03-08 21:36:25,210 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 21:36:25,210 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 21:36:25,210 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 21:36:25,211 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 21:36:25,211 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:36:23" (3/4) ... [2025-03-08 21:36:25,212 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 21:36:25,214 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thr2 [2025-03-08 21:36:25,214 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thr1 [2025-03-08 21:36:25,216 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-03-08 21:36:25,216 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-08 21:36:25,216 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 21:36:25,216 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 21:36:25,259 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 21:36:25,259 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 21:36:25,259 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 21:36:25,260 INFO L158 Benchmark]: Toolchain (without parser) took 2253.99ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 123.1MB in the end (delta: -2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 21:36:25,260 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 119.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 21:36:25,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.26ms. Allocated memory is still 167.8MB. Free memory was 120.1MB in the beginning and 100.7MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 21:36:25,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.53ms. Allocated memory is still 167.8MB. Free memory was 100.7MB in the beginning and 98.9MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 21:36:25,261 INFO L158 Benchmark]: Boogie Preprocessor took 19.84ms. Allocated memory is still 167.8MB. Free memory was 98.9MB in the beginning and 98.1MB in the end (delta: 819.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 21:36:25,261 INFO L158 Benchmark]: IcfgBuilder took 273.60ms. Allocated memory is still 167.8MB. Free memory was 98.1MB in the beginning and 83.4MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 21:36:25,261 INFO L158 Benchmark]: TraceAbstraction took 1597.22ms. Allocated memory is still 167.8MB. Free memory was 83.0MB in the beginning and 128.1MB in the end (delta: -45.2MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2025-03-08 21:36:25,261 INFO L158 Benchmark]: Witness Printer took 48.68ms. Allocated memory is still 167.8MB. Free memory was 128.1MB in the beginning and 123.1MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 21:36:25,262 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 119.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.26ms. Allocated memory is still 167.8MB. Free memory was 120.1MB in the beginning and 100.7MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.53ms. Allocated memory is still 167.8MB. Free memory was 100.7MB in the beginning and 98.9MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.84ms. Allocated memory is still 167.8MB. Free memory was 98.9MB in the beginning and 98.1MB in the end (delta: 819.2kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 273.60ms. Allocated memory is still 167.8MB. Free memory was 98.1MB in the beginning and 83.4MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1597.22ms. Allocated memory is still 167.8MB. Free memory was 83.0MB in the beginning and 128.1MB in the end (delta: -45.2MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * Witness Printer took 48.68ms. Allocated memory is still 167.8MB. Free memory was 128.1MB in the beginning and 123.1MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 759]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 760]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 744]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 146 locations, 173 edges, 10 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: 1.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 198 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 367 IncrementalHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 37 mSDtfsCounter, 367 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=402occurred in iteration=6, 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, 269 NumberOfCodeBlocks, 267 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 262 ConstructedInterpolants, 0 QuantifiedInterpolants, 310 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-08 21:36:25,274 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 Result: TRUE