./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.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/goblint-regression/06-symbeq_23-idxsense_nr.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 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 21:57:44,477 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 21:57:44,529 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 21:57:44,535 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 21:57:44,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 21:57:44,560 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 21:57:44,561 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 21:57:44,561 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 21:57:44,561 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 21:57:44,561 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 21:57:44,561 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 21:57:44,561 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 21:57:44,561 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 21:57:44,561 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 21:57:44,562 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 21:57:44,562 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 21:57:44,562 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 21:57:44,563 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 21:57:44,563 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 21:57:44,563 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 21:57:44,563 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 21:57:44,563 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 21:57:44,563 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 21:57:44,563 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 21:57:44,563 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 21:57:44,563 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 21:57:44,564 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 21:57:44,564 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 21:57:44,564 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 21:57:44,564 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 21:57:44,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 21:57:44,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 21:57:44,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 21:57:44,564 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 21:57:44,564 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 21:57:44,564 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 21:57:44,564 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 21:57:44,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 21:57:44,564 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 21:57:44,564 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 21:57:44,564 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 21:57:44,565 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 21:57:44,565 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 -> 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 [2025-03-08 21:57:44,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 21:57:44,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 21:57:44,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 21:57:44,778 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 21:57:44,778 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 21:57:44,779 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2025-03-08 21:57:45,904 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54b71c6b0/0dd3295888294729b9f49626a9e7775e/FLAG7be232bd4 [2025-03-08 21:57:46,197 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 21:57:46,202 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2025-03-08 21:57:46,218 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54b71c6b0/0dd3295888294729b9f49626a9e7775e/FLAG7be232bd4 [2025-03-08 21:57:46,474 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54b71c6b0/0dd3295888294729b9f49626a9e7775e [2025-03-08 21:57:46,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 21:57:46,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 21:57:46,477 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 21:57:46,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 21:57:46,480 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 21:57:46,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:57:46" (1/1) ... [2025-03-08 21:57:46,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@474a4c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:46, skipping insertion in model container [2025-03-08 21:57:46,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:57:46" (1/1) ... [2025-03-08 21:57:46,509 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 21:57:46,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 21:57:46,709 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 21:57:46,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 21:57:46,786 INFO L204 MainTranslator]: Completed translation [2025-03-08 21:57:46,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:46 WrapperNode [2025-03-08 21:57:46,787 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 21:57:46,788 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 21:57:46,788 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 21:57:46,788 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 21:57:46,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:46" (1/1) ... [2025-03-08 21:57:46,804 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:46" (1/1) ... [2025-03-08 21:57:46,827 INFO L138 Inliner]: procedures = 162, calls = 77, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 130 [2025-03-08 21:57:46,832 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 21:57:46,832 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 21:57:46,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 21:57:46,832 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 21:57:46,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:46" (1/1) ... [2025-03-08 21:57:46,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:46" (1/1) ... [2025-03-08 21:57:46,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:46" (1/1) ... [2025-03-08 21:57:46,844 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:46" (1/1) ... [2025-03-08 21:57:46,854 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:46" (1/1) ... [2025-03-08 21:57:46,859 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:46" (1/1) ... [2025-03-08 21:57:46,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:46" (1/1) ... [2025-03-08 21:57:46,861 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:46" (1/1) ... [2025-03-08 21:57:46,862 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 21:57:46,866 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 21:57:46,866 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 21:57:46,866 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 21:57:46,870 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:46" (1/1) ... [2025-03-08 21:57:46,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 21:57:46,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:57:46,896 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 21:57:46,899 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 21:57:46,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-08 21:57:46,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-08 21:57:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-08 21:57:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 21:57:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-08 21:57:46,917 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-08 21:57:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 21:57:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-08 21:57:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 21:57:46,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 21:57:46,918 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 21:57:46,989 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 21:57:46,990 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 21:57:47,224 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 21:57:47,224 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 21:57:47,242 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 21:57:47,243 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 21:57:47,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:57:47 BoogieIcfgContainer [2025-03-08 21:57:47,243 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 21:57:47,245 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 21:57:47,245 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 21:57:47,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 21:57:47,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 09:57:46" (1/3) ... [2025-03-08 21:57:47,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d3239a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:57:47, skipping insertion in model container [2025-03-08 21:57:47,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:46" (2/3) ... [2025-03-08 21:57:47,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d3239a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:57:47, skipping insertion in model container [2025-03-08 21:57:47,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:57:47" (3/3) ... [2025-03-08 21:57:47,251 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2025-03-08 21:57:47,263 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 21:57:47,265 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_23-idxsense_nr.i that has 2 procedures, 160 locations, 1 initial locations, 1 loop locations, and 6 error locations. [2025-03-08 21:57:47,265 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 21:57:47,314 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-08 21:57:47,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 160 transitions, 324 flow [2025-03-08 21:57:47,392 INFO L124 PetriNetUnfolderBase]: 1/159 cut-off events. [2025-03-08 21:57:47,394 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:57:47,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 159 events. 1/159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2025-03-08 21:57:47,397 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 160 transitions, 324 flow [2025-03-08 21:57:47,400 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 159 transitions, 321 flow [2025-03-08 21:57:47,406 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 21:57:47,417 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;@3d7ca28c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 21:57:47,420 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-08 21:57:47,459 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 21:57:47,462 INFO L124 PetriNetUnfolderBase]: 1/98 cut-off events. [2025-03-08 21:57:47,462 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:57:47,462 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:47,463 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:47,464 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:47,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:47,469 INFO L85 PathProgramCache]: Analyzing trace with hash 971379206, now seen corresponding path program 1 times [2025-03-08 21:57:47,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:47,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553043028] [2025-03-08 21:57:47,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:47,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:47,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-03-08 21:57:47,599 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-03-08 21:57:47,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:47,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:47,752 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 21:57:47,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:47,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553043028] [2025-03-08 21:57:47,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553043028] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:47,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:47,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 21:57:47,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275208479] [2025-03-08 21:57:47,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:47,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:47,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:47,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:47,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:47,792 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 160 [2025-03-08 21:57:47,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 159 transitions, 321 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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 21:57:47,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:47,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 160 [2025-03-08 21:57:47,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:47,873 INFO L124 PetriNetUnfolderBase]: 11/298 cut-off events. [2025-03-08 21:57:47,873 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 21:57:47,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 298 events. 11/298 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 603 event pairs, 10 based on Foata normal form. 1/279 useless extension candidates. Maximal degree in co-relation 240. Up to 34 conditions per place. [2025-03-08 21:57:47,877 INFO L140 encePairwiseOnDemand]: 157/160 looper letters, 12 selfloop transitions, 2 changer transitions 0/160 dead transitions. [2025-03-08 21:57:47,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 160 transitions, 351 flow [2025-03-08 21:57:47,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:47,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:47,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2025-03-08 21:57:47,890 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.95 [2025-03-08 21:57:47,891 INFO L175 Difference]: Start difference. First operand has 162 places, 159 transitions, 321 flow. Second operand 3 states and 456 transitions. [2025-03-08 21:57:47,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 160 transitions, 351 flow [2025-03-08 21:57:47,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 160 transitions, 350 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 21:57:47,897 INFO L231 Difference]: Finished difference. Result has 164 places, 160 transitions, 332 flow [2025-03-08 21:57:47,899 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=164, PETRI_TRANSITIONS=160} [2025-03-08 21:57:47,901 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 2 predicate places. [2025-03-08 21:57:47,902 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 160 transitions, 332 flow [2025-03-08 21:57:47,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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 21:57:47,902 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:47,902 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] [2025-03-08 21:57:47,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 21:57:47,903 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:47,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:47,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1372251095, now seen corresponding path program 1 times [2025-03-08 21:57:47,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:47,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574170137] [2025-03-08 21:57:47,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:47,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:47,919 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-08 21:57:47,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-08 21:57:47,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:47,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:48,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:48,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:48,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574170137] [2025-03-08 21:57:48,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574170137] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 21:57:48,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66028392] [2025-03-08 21:57:48,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:48,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 21:57:48,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:57:48,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 21:57:48,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 21:57:48,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-08 21:57:48,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-08 21:57:48,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:48,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:48,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 21:57:48,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 21:57:48,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:48,276 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 21:57:48,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:48,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66028392] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 21:57:48,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 21:57:48,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-08 21:57:48,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527751464] [2025-03-08 21:57:48,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 21:57:48,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 21:57:48,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:48,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 21:57:48,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-08 21:57:48,356 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-03-08 21:57:48,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 160 transitions, 332 flow. Second operand has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 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 21:57:48,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:48,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-03-08 21:57:48,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:48,482 INFO L124 PetriNetUnfolderBase]: 11/305 cut-off events. [2025-03-08 21:57:48,483 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 21:57:48,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 305 events. 11/305 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 600 event pairs, 10 based on Foata normal form. 2/287 useless extension candidates. Maximal degree in co-relation 277. Up to 34 conditions per place. [2025-03-08 21:57:48,488 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 16 selfloop transitions, 9 changer transitions 0/168 dead transitions. [2025-03-08 21:57:48,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 168 transitions, 400 flow [2025-03-08 21:57:48,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 21:57:48,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-08 21:57:48,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1323 transitions. [2025-03-08 21:57:48,492 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.91875 [2025-03-08 21:57:48,492 INFO L175 Difference]: Start difference. First operand has 164 places, 160 transitions, 332 flow. Second operand 9 states and 1323 transitions. [2025-03-08 21:57:48,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 168 transitions, 400 flow [2025-03-08 21:57:48,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 168 transitions, 398 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 21:57:48,496 INFO L231 Difference]: Finished difference. Result has 174 places, 166 transitions, 380 flow [2025-03-08 21:57:48,497 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=380, PETRI_PLACES=174, PETRI_TRANSITIONS=166} [2025-03-08 21:57:48,498 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 12 predicate places. [2025-03-08 21:57:48,498 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 166 transitions, 380 flow [2025-03-08 21:57:48,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 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 21:57:48,499 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:48,499 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:48,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 21:57:48,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 21:57:48,704 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:48,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:48,705 INFO L85 PathProgramCache]: Analyzing trace with hash -951784887, now seen corresponding path program 2 times [2025-03-08 21:57:48,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:48,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780913170] [2025-03-08 21:57:48,705 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 21:57:48,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:48,722 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 100 statements into 2 equivalence classes. [2025-03-08 21:57:48,733 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 85 of 100 statements. [2025-03-08 21:57:48,733 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 21:57:48,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:49,106 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 21:57:49,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:49,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780913170] [2025-03-08 21:57:49,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780913170] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:49,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:49,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 21:57:49,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345664009] [2025-03-08 21:57:49,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:49,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 21:57:49,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:49,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 21:57:49,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 21:57:49,337 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 160 [2025-03-08 21:57:49,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 166 transitions, 380 flow. Second operand has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 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 21:57:49,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:49,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 160 [2025-03-08 21:57:49,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:49,651 INFO L124 PetriNetUnfolderBase]: 285/1089 cut-off events. [2025-03-08 21:57:49,651 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-08 21:57:49,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1742 conditions, 1089 events. 285/1089 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 6337 event pairs, 68 based on Foata normal form. 0/1043 useless extension candidates. Maximal degree in co-relation 1628. Up to 287 conditions per place. [2025-03-08 21:57:49,656 INFO L140 encePairwiseOnDemand]: 138/160 looper letters, 98 selfloop transitions, 42 changer transitions 0/276 dead transitions. [2025-03-08 21:57:49,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 276 transitions, 880 flow [2025-03-08 21:57:49,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 21:57:49,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 21:57:49,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 922 transitions. [2025-03-08 21:57:49,659 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9604166666666667 [2025-03-08 21:57:49,659 INFO L175 Difference]: Start difference. First operand has 174 places, 166 transitions, 380 flow. Second operand 6 states and 922 transitions. [2025-03-08 21:57:49,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 276 transitions, 880 flow [2025-03-08 21:57:49,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 276 transitions, 874 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-03-08 21:57:49,664 INFO L231 Difference]: Finished difference. Result has 183 places, 212 transitions, 690 flow [2025-03-08 21:57:49,664 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=690, PETRI_PLACES=183, PETRI_TRANSITIONS=212} [2025-03-08 21:57:49,665 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 21 predicate places. [2025-03-08 21:57:49,665 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 212 transitions, 690 flow [2025-03-08 21:57:49,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 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 21:57:49,665 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:49,666 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:49,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 21:57:49,666 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:49,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:49,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1952927645, now seen corresponding path program 1 times [2025-03-08 21:57:49,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:49,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237714374] [2025-03-08 21:57:49,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:49,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:49,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-08 21:57:49,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-08 21:57:49,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:49,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:49,804 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:49,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:49,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237714374] [2025-03-08 21:57:49,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237714374] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 21:57:49,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448154053] [2025-03-08 21:57:49,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:49,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 21:57:49,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:57:49,806 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 21:57:49,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 21:57:49,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-08 21:57:49,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-08 21:57:49,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:49,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:49,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-08 21:57:49,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 21:57:49,949 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:49,949 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 21:57:50,048 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:50,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448154053] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 21:57:50,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 21:57:50,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-03-08 21:57:50,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142397060] [2025-03-08 21:57:50,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 21:57:50,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-08 21:57:50,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:50,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-08 21:57:50,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-08 21:57:50,077 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-03-08 21:57:50,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 212 transitions, 690 flow. Second operand has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 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 21:57:50,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:50,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-03-08 21:57:50,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:50,354 INFO L124 PetriNetUnfolderBase]: 127/838 cut-off events. [2025-03-08 21:57:50,355 INFO L125 PetriNetUnfolderBase]: For 135/150 co-relation queries the response was YES. [2025-03-08 21:57:50,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1549 conditions, 838 events. 127/838 cut-off events. For 135/150 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4670 event pairs, 45 based on Foata normal form. 4/822 useless extension candidates. Maximal degree in co-relation 1359. Up to 132 conditions per place. [2025-03-08 21:57:50,358 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 20 selfloop transitions, 21 changer transitions 0/230 dead transitions. [2025-03-08 21:57:50,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 230 transitions, 860 flow [2025-03-08 21:57:50,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-08 21:57:50,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-08 21:57:50,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3069 transitions. [2025-03-08 21:57:50,364 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9133928571428571 [2025-03-08 21:57:50,365 INFO L175 Difference]: Start difference. First operand has 183 places, 212 transitions, 690 flow. Second operand 21 states and 3069 transitions. [2025-03-08 21:57:50,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 230 transitions, 860 flow [2025-03-08 21:57:50,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 230 transitions, 860 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 21:57:50,372 INFO L231 Difference]: Finished difference. Result has 208 places, 225 transitions, 820 flow [2025-03-08 21:57:50,372 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=820, PETRI_PLACES=208, PETRI_TRANSITIONS=225} [2025-03-08 21:57:50,373 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 46 predicate places. [2025-03-08 21:57:50,374 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 225 transitions, 820 flow [2025-03-08 21:57:50,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 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 21:57:50,375 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:50,375 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:50,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-08 21:57:50,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-03-08 21:57:50,580 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:50,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:50,582 INFO L85 PathProgramCache]: Analyzing trace with hash 947106653, now seen corresponding path program 2 times [2025-03-08 21:57:50,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:50,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834729568] [2025-03-08 21:57:50,582 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 21:57:50,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:50,593 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 121 statements into 2 equivalence classes. [2025-03-08 21:57:50,604 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 86 of 121 statements. [2025-03-08 21:57:50,605 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 21:57:50,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:50,868 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-08 21:57:50,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:50,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834729568] [2025-03-08 21:57:50,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834729568] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:50,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:50,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 21:57:50,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361858862] [2025-03-08 21:57:50,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:50,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 21:57:50,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:50,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 21:57:50,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 21:57:51,153 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 160 [2025-03-08 21:57:51,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 225 transitions, 820 flow. Second operand has 6 states, 6 states have (on average 142.33333333333334) internal successors, (854), 6 states have internal predecessors, (854), 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 21:57:51,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:51,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 160 [2025-03-08 21:57:51,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:51,272 INFO L124 PetriNetUnfolderBase]: 141/900 cut-off events. [2025-03-08 21:57:51,273 INFO L125 PetriNetUnfolderBase]: For 146/168 co-relation queries the response was YES. [2025-03-08 21:57:51,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1642 conditions, 900 events. 141/900 cut-off events. For 146/168 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5158 event pairs, 49 based on Foata normal form. 3/880 useless extension candidates. Maximal degree in co-relation 1444. Up to 129 conditions per place. [2025-03-08 21:57:51,279 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 21 selfloop transitions, 5 changer transitions 0/232 dead transitions. [2025-03-08 21:57:51,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 232 transitions, 886 flow [2025-03-08 21:57:51,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 21:57:51,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 21:57:51,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2025-03-08 21:57:51,281 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.909375 [2025-03-08 21:57:51,281 INFO L175 Difference]: Start difference. First operand has 208 places, 225 transitions, 820 flow. Second operand 6 states and 873 transitions. [2025-03-08 21:57:51,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 232 transitions, 886 flow [2025-03-08 21:57:51,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 232 transitions, 862 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-03-08 21:57:51,287 INFO L231 Difference]: Finished difference. Result has 206 places, 224 transitions, 804 flow [2025-03-08 21:57:51,287 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=206, PETRI_TRANSITIONS=224} [2025-03-08 21:57:51,287 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 44 predicate places. [2025-03-08 21:57:51,288 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 224 transitions, 804 flow [2025-03-08 21:57:51,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.33333333333334) internal successors, (854), 6 states have internal predecessors, (854), 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 21:57:51,289 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:51,289 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:51,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 21:57:51,290 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:51,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:51,290 INFO L85 PathProgramCache]: Analyzing trace with hash 764387085, now seen corresponding path program 1 times [2025-03-08 21:57:51,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:51,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142234970] [2025-03-08 21:57:51,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:51,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:51,302 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-08 21:57:51,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-08 21:57:51,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:51,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:51,559 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:51,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:51,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142234970] [2025-03-08 21:57:51,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142234970] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 21:57:51,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668965272] [2025-03-08 21:57:51,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:51,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 21:57:51,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:57:51,562 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 21:57:51,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 21:57:51,607 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-08 21:57:51,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-08 21:57:51,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:51,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:51,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-08 21:57:51,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 21:57:51,711 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:51,711 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 21:57:51,883 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:51,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668965272] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 21:57:51,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 21:57:51,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-03-08 21:57:51,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099193967] [2025-03-08 21:57:51,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 21:57:51,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-08 21:57:51,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:51,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-08 21:57:51,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-03-08 21:57:51,909 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-03-08 21:57:51,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 224 transitions, 804 flow. Second operand has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 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 21:57:51,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:51,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-03-08 21:57:51,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:52,241 INFO L124 PetriNetUnfolderBase]: 127/852 cut-off events. [2025-03-08 21:57:52,242 INFO L125 PetriNetUnfolderBase]: For 252/267 co-relation queries the response was YES. [2025-03-08 21:57:52,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1644 conditions, 852 events. 127/852 cut-off events. For 252/267 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4687 event pairs, 45 based on Foata normal form. 3/836 useless extension candidates. Maximal degree in co-relation 1370. Up to 132 conditions per place. [2025-03-08 21:57:52,247 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 23 selfloop transitions, 30 changer transitions 0/241 dead transitions. [2025-03-08 21:57:52,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 241 transitions, 1032 flow [2025-03-08 21:57:52,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-08 21:57:52,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-08 21:57:52,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4376 transitions. [2025-03-08 21:57:52,253 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9116666666666666 [2025-03-08 21:57:52,253 INFO L175 Difference]: Start difference. First operand has 206 places, 224 transitions, 804 flow. Second operand 30 states and 4376 transitions. [2025-03-08 21:57:52,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 241 transitions, 1032 flow [2025-03-08 21:57:52,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 241 transitions, 1022 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 21:57:52,259 INFO L231 Difference]: Finished difference. Result has 234 places, 234 transitions, 946 flow [2025-03-08 21:57:52,260 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=946, PETRI_PLACES=234, PETRI_TRANSITIONS=234} [2025-03-08 21:57:52,261 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 72 predicate places. [2025-03-08 21:57:52,261 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 234 transitions, 946 flow [2025-03-08 21:57:52,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 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 21:57:52,263 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:52,263 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:52,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 21:57:52,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 21:57:52,464 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:52,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:52,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1371972886, now seen corresponding path program 2 times [2025-03-08 21:57:52,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:52,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927696687] [2025-03-08 21:57:52,465 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 21:57:52,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:52,477 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-03-08 21:57:52,479 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 93 of 143 statements. [2025-03-08 21:57:52,479 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-08 21:57:52,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:52,695 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:57:52,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:52,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927696687] [2025-03-08 21:57:52,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927696687] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:52,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:52,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 21:57:52,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818529021] [2025-03-08 21:57:52,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:52,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 21:57:52,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:52,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 21:57:52,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 21:57:52,895 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 160 [2025-03-08 21:57:52,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 234 transitions, 946 flow. Second operand has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 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 21:57:52,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:52,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 160 [2025-03-08 21:57:52,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:53,125 INFO L124 PetriNetUnfolderBase]: 445/1510 cut-off events. [2025-03-08 21:57:53,125 INFO L125 PetriNetUnfolderBase]: For 719/753 co-relation queries the response was YES. [2025-03-08 21:57:53,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3673 conditions, 1510 events. 445/1510 cut-off events. For 719/753 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9423 event pairs, 117 based on Foata normal form. 24/1510 useless extension candidates. Maximal degree in co-relation 3398. Up to 640 conditions per place. [2025-03-08 21:57:53,132 INFO L140 encePairwiseOnDemand]: 143/160 looper letters, 109 selfloop transitions, 53 changer transitions 6/325 dead transitions. [2025-03-08 21:57:53,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 325 transitions, 1650 flow [2025-03-08 21:57:53,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 21:57:53,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 21:57:53,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 882 transitions. [2025-03-08 21:57:53,135 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.91875 [2025-03-08 21:57:53,135 INFO L175 Difference]: Start difference. First operand has 234 places, 234 transitions, 946 flow. Second operand 6 states and 882 transitions. [2025-03-08 21:57:53,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 325 transitions, 1650 flow [2025-03-08 21:57:53,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 325 transitions, 1604 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-03-08 21:57:53,144 INFO L231 Difference]: Finished difference. Result has 226 places, 285 transitions, 1406 flow [2025-03-08 21:57:53,144 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=900, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1406, PETRI_PLACES=226, PETRI_TRANSITIONS=285} [2025-03-08 21:57:53,146 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 64 predicate places. [2025-03-08 21:57:53,146 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 285 transitions, 1406 flow [2025-03-08 21:57:53,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 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 21:57:53,146 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:53,147 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:53,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 21:57:53,147 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:53,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:53,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2033500526, now seen corresponding path program 1 times [2025-03-08 21:57:53,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:53,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384471098] [2025-03-08 21:57:53,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:53,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:53,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-03-08 21:57:53,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-03-08 21:57:53,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:53,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:53,449 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:57:53,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:53,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384471098] [2025-03-08 21:57:53,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384471098] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:53,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:53,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 21:57:53,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287725566] [2025-03-08 21:57:53,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:53,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 21:57:53,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:53,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 21:57:53,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 21:57:53,718 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 160 [2025-03-08 21:57:53,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 285 transitions, 1406 flow. Second operand has 6 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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 21:57:53,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:53,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 160 [2025-03-08 21:57:53,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:53,914 INFO L124 PetriNetUnfolderBase]: 255/1247 cut-off events. [2025-03-08 21:57:53,914 INFO L125 PetriNetUnfolderBase]: For 1032/1105 co-relation queries the response was YES. [2025-03-08 21:57:53,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3042 conditions, 1247 events. 255/1247 cut-off events. For 1032/1105 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7961 event pairs, 57 based on Foata normal form. 9/1235 useless extension candidates. Maximal degree in co-relation 2783. Up to 215 conditions per place. [2025-03-08 21:57:53,920 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 25 selfloop transitions, 5 changer transitions 0/292 dead transitions. [2025-03-08 21:57:53,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 292 transitions, 1480 flow [2025-03-08 21:57:53,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 21:57:53,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 21:57:53,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 853 transitions. [2025-03-08 21:57:53,922 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8885416666666667 [2025-03-08 21:57:53,922 INFO L175 Difference]: Start difference. First operand has 226 places, 285 transitions, 1406 flow. Second operand 6 states and 853 transitions. [2025-03-08 21:57:53,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 292 transitions, 1480 flow [2025-03-08 21:57:53,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 292 transitions, 1472 flow, removed 4 selfloop flow, removed 0 redundant places. [2025-03-08 21:57:53,931 INFO L231 Difference]: Finished difference. Result has 230 places, 284 transitions, 1406 flow [2025-03-08 21:57:53,931 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=1396, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1406, PETRI_PLACES=230, PETRI_TRANSITIONS=284} [2025-03-08 21:57:53,932 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 68 predicate places. [2025-03-08 21:57:53,932 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 284 transitions, 1406 flow [2025-03-08 21:57:53,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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 21:57:53,933 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:53,933 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:53,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 21:57:53,933 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:53,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:53,934 INFO L85 PathProgramCache]: Analyzing trace with hash 730960213, now seen corresponding path program 1 times [2025-03-08 21:57:53,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:53,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127644936] [2025-03-08 21:57:53,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:53,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:53,953 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-03-08 21:57:53,966 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-03-08 21:57:53,966 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:53,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:54,243 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:57:54,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:54,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127644936] [2025-03-08 21:57:54,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127644936] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:54,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:54,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 21:57:54,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109470379] [2025-03-08 21:57:54,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:54,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 21:57:54,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:54,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 21:57:54,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 21:57:54,454 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 160 [2025-03-08 21:57:54,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 284 transitions, 1406 flow. Second operand has 6 states, 6 states have (on average 129.83333333333334) internal successors, (779), 6 states have internal predecessors, (779), 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 21:57:54,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:54,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 160 [2025-03-08 21:57:54,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:54,720 INFO L124 PetriNetUnfolderBase]: 594/1878 cut-off events. [2025-03-08 21:57:54,720 INFO L125 PetriNetUnfolderBase]: For 2513/2558 co-relation queries the response was YES. [2025-03-08 21:57:54,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5684 conditions, 1878 events. 594/1878 cut-off events. For 2513/2558 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 12323 event pairs, 150 based on Foata normal form. 25/1870 useless extension candidates. Maximal degree in co-relation 5424. Up to 891 conditions per place. [2025-03-08 21:57:54,729 INFO L140 encePairwiseOnDemand]: 143/160 looper letters, 122 selfloop transitions, 58 changer transitions 39/376 dead transitions. [2025-03-08 21:57:54,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 376 transitions, 2368 flow [2025-03-08 21:57:54,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 21:57:54,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 21:57:54,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 864 transitions. [2025-03-08 21:57:54,732 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9 [2025-03-08 21:57:54,732 INFO L175 Difference]: Start difference. First operand has 230 places, 284 transitions, 1406 flow. Second operand 6 states and 864 transitions. [2025-03-08 21:57:54,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 376 transitions, 2368 flow [2025-03-08 21:57:54,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 376 transitions, 2358 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 21:57:54,743 INFO L231 Difference]: Finished difference. Result has 234 places, 311 transitions, 1804 flow [2025-03-08 21:57:54,743 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=1396, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1804, PETRI_PLACES=234, PETRI_TRANSITIONS=311} [2025-03-08 21:57:54,743 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 72 predicate places. [2025-03-08 21:57:54,743 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 311 transitions, 1804 flow [2025-03-08 21:57:54,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.83333333333334) internal successors, (779), 6 states have internal predecessors, (779), 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 21:57:54,744 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:54,744 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:57:54,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 21:57:54,744 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:54,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:54,745 INFO L85 PathProgramCache]: Analyzing trace with hash -655417679, now seen corresponding path program 1 times [2025-03-08 21:57:54,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:54,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257466770] [2025-03-08 21:57:54,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:54,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:54,757 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-03-08 21:57:54,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-03-08 21:57:54,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:54,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:54,834 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 21:57:54,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:54,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257466770] [2025-03-08 21:57:54,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257466770] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:54,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:54,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 21:57:54,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676755606] [2025-03-08 21:57:54,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:54,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:54,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:54,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:54,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:54,895 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 160 [2025-03-08 21:57:54,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 311 transitions, 1804 flow. Second operand has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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 21:57:54,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:54,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 160 [2025-03-08 21:57:54,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:54,933 INFO L124 PetriNetUnfolderBase]: 6/275 cut-off events. [2025-03-08 21:57:54,934 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2025-03-08 21:57:54,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 275 events. 6/275 cut-off events. For 227/227 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 248 event pairs, 0 based on Foata normal form. 2/276 useless extension candidates. Maximal degree in co-relation 441. Up to 23 conditions per place. [2025-03-08 21:57:54,934 INFO L140 encePairwiseOnDemand]: 156/160 looper letters, 0 selfloop transitions, 0 changer transitions 185/185 dead transitions. [2025-03-08 21:57:54,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 185 transitions, 738 flow [2025-03-08 21:57:54,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:54,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:54,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2025-03-08 21:57:54,936 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9708333333333333 [2025-03-08 21:57:54,936 INFO L175 Difference]: Start difference. First operand has 234 places, 311 transitions, 1804 flow. Second operand 3 states and 466 transitions. [2025-03-08 21:57:54,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 185 transitions, 738 flow [2025-03-08 21:57:54,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 185 transitions, 600 flow, removed 30 selfloop flow, removed 29 redundant places. [2025-03-08 21:57:54,939 INFO L231 Difference]: Finished difference. Result has 203 places, 0 transitions, 0 flow [2025-03-08 21:57:54,940 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=203, PETRI_TRANSITIONS=0} [2025-03-08 21:57:54,940 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 41 predicate places. [2025-03-08 21:57:54,940 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 0 transitions, 0 flow [2025-03-08 21:57:54,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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 21:57:54,943 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2025-03-08 21:57:54,943 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2025-03-08 21:57:54,943 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2025-03-08 21:57:54,943 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2025-03-08 21:57:54,943 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2025-03-08 21:57:54,943 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2025-03-08 21:57:54,943 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2025-03-08 21:57:54,943 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2025-03-08 21:57:54,943 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2025-03-08 21:57:54,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 21:57:54,944 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2025-03-08 21:57:54,947 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-08 21:57:54,947 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 21:57:54,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 09:57:54 BasicIcfg [2025-03-08 21:57:54,952 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 21:57:54,953 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 21:57:54,953 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 21:57:54,953 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 21:57:54,953 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:57:47" (3/4) ... [2025-03-08 21:57:54,954 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 21:57:54,957 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-08 21:57:54,961 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-08 21:57:54,961 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-08 21:57:54,961 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-08 21:57:55,016 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 21:57:55,016 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 21:57:55,016 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 21:57:55,016 INFO L158 Benchmark]: Toolchain (without parser) took 8539.83ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 104.7MB in the beginning and 285.9MB in the end (delta: -181.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2025-03-08 21:57:55,017 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory was 126.1MB in the beginning and 125.8MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 21:57:55,018 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.75ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 82.8MB in the end (delta: 21.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 21:57:55,018 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.13ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 80.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 21:57:55,019 INFO L158 Benchmark]: Boogie Preprocessor took 33.08ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 78.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 21:57:55,019 INFO L158 Benchmark]: IcfgBuilder took 377.24ms. Allocated memory is still 142.6MB. Free memory was 78.8MB in the beginning and 56.7MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 21:57:55,020 INFO L158 Benchmark]: TraceAbstraction took 7707.43ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 55.7MB in the beginning and 294.3MB in the end (delta: -238.5MB). Peak memory consumption was 147.0MB. Max. memory is 16.1GB. [2025-03-08 21:57:55,020 INFO L158 Benchmark]: Witness Printer took 63.15ms. Allocated memory is still 343.9MB. Free memory was 294.3MB in the beginning and 285.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 21:57:55,021 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory was 126.1MB in the beginning and 125.8MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.75ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 82.8MB in the end (delta: 21.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.13ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 80.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.08ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 78.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 377.24ms. Allocated memory is still 142.6MB. Free memory was 78.8MB in the beginning and 56.7MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 7707.43ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 55.7MB in the beginning and 294.3MB in the end (delta: -238.5MB). Peak memory consumption was 147.0MB. Max. memory is 16.1GB. * Witness Printer took 63.15ms. Allocated memory is still 343.9MB. Free memory was 294.3MB in the beginning and 285.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: 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 3 procedures, 188 locations, 187 edges, 9 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: 7.6s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1127 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 731 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 369 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2532 IncrementalHoareTripleChecker+Invalid, 2901 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 369 mSolverCounterUnsat, 16 mSDtfsCounter, 2532 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 733 GetRequests, 621 SyntacticMatches, 11 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1804occurred in iteration=9, InterpolantAutomatonStates: 96, 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, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1566 NumberOfCodeBlocks, 1466 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1869 ConstructedInterpolants, 0 QuantifiedInterpolants, 2680 SizeOfPredicates, 22 NumberOfNonLiveVariables, 721 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 1070/1463 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-08 21:57:55,033 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