./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 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 ../../../trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_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 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:25:57,717 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:25:57,769 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-30 10:25:57,775 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:25:57,776 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:25:57,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:25:57,798 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:25:57,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:25:57,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:25:57,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:25:57,800 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:25:57,800 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:25:57,800 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:25:57,800 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:25:57,801 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:25:57,801 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:25:57,801 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:25:57,801 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:25:57,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:25:57,801 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:25:57,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:25:57,801 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:25:57,801 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-30 10:25:57,801 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:25:57,802 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:25:57,802 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:25:57,802 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:25:57,802 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:25:57,802 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:25:57,802 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:25:57,802 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:25:57,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:25:57,802 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:25:57,803 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:25:57,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:25:57,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:25:57,803 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:25:57,803 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:25:57,803 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:25:57,803 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:25:57,803 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:25:57,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:25:57,803 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:25:57,803 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:25:57,804 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:25:57,804 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 -> 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b [2025-04-30 10:25:58,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:25:58,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:25:58,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:25:58,042 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:25:58,042 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:25:58,044 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i [2025-04-30 10:25:59,352 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64ae9c433/32210a1b23b74783af39b92604c9a526/FLAG1609b3a15 [2025-04-30 10:25:59,589 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:25:59,591 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_07-ps_nr.i [2025-04-30 10:25:59,602 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64ae9c433/32210a1b23b74783af39b92604c9a526/FLAG1609b3a15 [2025-04-30 10:26:00,353 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64ae9c433/32210a1b23b74783af39b92604c9a526 [2025-04-30 10:26:00,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:26:00,356 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:26:00,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:26:00,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:26:00,359 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:26:00,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23102a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00, skipping insertion in model container [2025-04-30 10:26:00,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,390 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:26:00,746 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:26:00,759 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:26:00,808 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:26:00,843 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:26:00,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00 WrapperNode [2025-04-30 10:26:00,843 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:26:00,844 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:26:00,844 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:26:00,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:26:00,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,861 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,877 INFO L138 Inliner]: procedures = 266, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2025-04-30 10:26:00,878 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:26:00,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:26:00,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:26:00,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:26:00,883 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,888 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,892 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,895 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,899 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,900 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:26:00,908 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:26:00,908 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:26:00,908 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:26:00,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:26:00,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:26:00,935 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) [2025-04-30 10:26:00,938 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 [2025-04-30 10:26:00,955 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-30 10:26:00,955 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-30 10:26:00,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:26:00,955 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-30 10:26:00,955 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-30 10:26:00,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-30 10:26:00,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:26:00,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:26:00,956 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:26:01,058 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:26:01,059 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:26:01,171 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:26:01,171 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:26:01,193 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:26:01,195 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:26:01,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:26:01 BoogieIcfgContainer [2025-04-30 10:26:01,195 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:26:01,197 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:26:01,197 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:26:01,200 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:26:01,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:26:00" (1/3) ... [2025-04-30 10:26:01,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5764cf03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:26:01, skipping insertion in model container [2025-04-30 10:26:01,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00" (2/3) ... [2025-04-30 10:26:01,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5764cf03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:26:01, skipping insertion in model container [2025-04-30 10:26:01,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:26:01" (3/3) ... [2025-04-30 10:26:01,202 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_07-ps_nr.i [2025-04-30 10:26:01,211 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:26:01,213 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_07-ps_nr.i that has 2 procedures, 67 locations, 68 edges, 1 initial locations, 0 loop locations, and 4 error locations. [2025-04-30 10:26:01,213 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:26:01,247 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-30 10:26:01,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 69 transitions, 142 flow [2025-04-30 10:26:01,307 INFO L116 PetriNetUnfolderBase]: 3/68 cut-off events. [2025-04-30 10:26:01,313 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:26:01,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 68 events. 3/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2025-04-30 10:26:01,315 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 69 transitions, 142 flow [2025-04-30 10:26:01,317 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 68 transitions, 139 flow [2025-04-30 10:26:01,323 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:26:01,330 INFO L340 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;@60a5fc82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:26:01,332 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-04-30 10:26:01,342 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:26:01,342 INFO L116 PetriNetUnfolderBase]: 0/29 cut-off events. [2025-04-30 10:26:01,342 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:26:01,342 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:01,343 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:26:01,343 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:01,347 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:01,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1811652650, now seen corresponding path program 1 times [2025-04-30 10:26:01,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:01,352 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36806959] [2025-04-30 10:26:01,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:01,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:01,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-30 10:26:01,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-30 10:26:01,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:01,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:01,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:01,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:01,526 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36806959] [2025-04-30 10:26:01,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36806959] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:01,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:01,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:26:01,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176077934] [2025-04-30 10:26:01,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:01,533 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:26:01,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:01,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:26:01,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:26:01,581 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 69 [2025-04-30 10:26:01,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 68 transitions, 139 flow. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2025-04-30 10:26:01,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:01,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 69 [2025-04-30 10:26:01,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:01,658 INFO L116 PetriNetUnfolderBase]: 45/256 cut-off events. [2025-04-30 10:26:01,658 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:26:01,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 256 events. 45/256 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1211 event pairs, 6 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 318. Up to 45 conditions per place. [2025-04-30 10:26:01,661 INFO L140 encePairwiseOnDemand]: 61/69 looper letters, 17 selfloop transitions, 6 changer transitions 0/78 dead transitions. [2025-04-30 10:26:01,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 78 transitions, 205 flow [2025-04-30 10:26:01,662 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:26:01,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:26:01,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 193 transitions. [2025-04-30 10:26:01,673 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9323671497584541 [2025-04-30 10:26:01,675 INFO L175 Difference]: Start difference. First operand has 69 places, 68 transitions, 139 flow. Second operand 3 states and 193 transitions. [2025-04-30 10:26:01,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 78 transitions, 205 flow [2025-04-30 10:26:01,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 78 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:26:01,687 INFO L231 Difference]: Finished difference. Result has 72 places, 74 transitions, 190 flow [2025-04-30 10:26:01,689 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=72, PETRI_TRANSITIONS=74} [2025-04-30 10:26:01,691 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 3 predicate places. [2025-04-30 10:26:01,692 INFO L485 AbstractCegarLoop]: Abstraction has has 72 places, 74 transitions, 190 flow [2025-04-30 10:26:01,693 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2025-04-30 10:26:01,693 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:01,693 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:26:01,693 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:26:01,694 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:01,695 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:01,695 INFO L85 PathProgramCache]: Analyzing trace with hash 863098019, now seen corresponding path program 1 times [2025-04-30 10:26:01,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:01,696 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477947937] [2025-04-30 10:26:01,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:01,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:01,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-04-30 10:26:01,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-04-30 10:26:01,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:01,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:01,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:01,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:01,770 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477947937] [2025-04-30 10:26:01,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477947937] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:01,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:01,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:26:01,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837236550] [2025-04-30 10:26:01,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:01,771 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:26:01,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:01,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:26:01,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:26:01,791 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 69 [2025-04-30 10:26:01,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 74 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2025-04-30 10:26:01,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:01,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 69 [2025-04-30 10:26:01,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:01,851 INFO L116 PetriNetUnfolderBase]: 62/294 cut-off events. [2025-04-30 10:26:01,852 INFO L117 PetriNetUnfolderBase]: For 99/107 co-relation queries the response was YES. [2025-04-30 10:26:01,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 294 events. 62/294 cut-off events. For 99/107 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1492 event pairs, 16 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 487. Up to 93 conditions per place. [2025-04-30 10:26:01,854 INFO L140 encePairwiseOnDemand]: 63/69 looper letters, 16 selfloop transitions, 7 changer transitions 2/81 dead transitions. [2025-04-30 10:26:01,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 81 transitions, 262 flow [2025-04-30 10:26:01,854 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:26:01,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:26:01,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 188 transitions. [2025-04-30 10:26:01,855 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9082125603864735 [2025-04-30 10:26:01,855 INFO L175 Difference]: Start difference. First operand has 72 places, 74 transitions, 190 flow. Second operand 3 states and 188 transitions. [2025-04-30 10:26:01,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 81 transitions, 262 flow [2025-04-30 10:26:01,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 81 transitions, 246 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:26:01,860 INFO L231 Difference]: Finished difference. Result has 74 places, 78 transitions, 232 flow [2025-04-30 10:26:01,860 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=74, PETRI_TRANSITIONS=78} [2025-04-30 10:26:01,861 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 5 predicate places. [2025-04-30 10:26:01,861 INFO L485 AbstractCegarLoop]: Abstraction has has 74 places, 78 transitions, 232 flow [2025-04-30 10:26:01,861 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2025-04-30 10:26:01,861 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:01,861 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] [2025-04-30 10:26:01,861 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:26:01,861 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:01,862 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:01,862 INFO L85 PathProgramCache]: Analyzing trace with hash 826216541, now seen corresponding path program 1 times [2025-04-30 10:26:01,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:01,862 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40095485] [2025-04-30 10:26:01,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:01,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:01,875 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-04-30 10:26:01,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-04-30 10:26:01,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:01,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:01,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:01,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:01,934 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40095485] [2025-04-30 10:26:01,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40095485] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:01,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:01,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:26:01,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579128510] [2025-04-30 10:26:01,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:01,936 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:26:01,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:01,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:26:01,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:26:01,949 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 69 [2025-04-30 10:26:01,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 78 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2025-04-30 10:26:01,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:01,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 69 [2025-04-30 10:26:01,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:01,991 INFO L116 PetriNetUnfolderBase]: 43/297 cut-off events. [2025-04-30 10:26:01,992 INFO L117 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2025-04-30 10:26:01,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 297 events. 43/297 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1471 event pairs, 16 based on Foata normal form. 3/271 useless extension candidates. Maximal degree in co-relation 462. Up to 58 conditions per place. [2025-04-30 10:26:01,995 INFO L140 encePairwiseOnDemand]: 65/69 looper letters, 11 selfloop transitions, 2 changer transitions 3/81 dead transitions. [2025-04-30 10:26:01,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 81 transitions, 270 flow [2025-04-30 10:26:01,996 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:26:01,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:26:01,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 182 transitions. [2025-04-30 10:26:01,999 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8792270531400966 [2025-04-30 10:26:01,999 INFO L175 Difference]: Start difference. First operand has 74 places, 78 transitions, 232 flow. Second operand 3 states and 182 transitions. [2025-04-30 10:26:01,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 81 transitions, 270 flow [2025-04-30 10:26:02,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 81 transitions, 256 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:26:02,003 INFO L231 Difference]: Finished difference. Result has 75 places, 78 transitions, 228 flow [2025-04-30 10:26:02,003 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=75, PETRI_TRANSITIONS=78} [2025-04-30 10:26:02,004 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 6 predicate places. [2025-04-30 10:26:02,004 INFO L485 AbstractCegarLoop]: Abstraction has has 75 places, 78 transitions, 228 flow [2025-04-30 10:26:02,004 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2025-04-30 10:26:02,004 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:02,004 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] [2025-04-30 10:26:02,005 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:26:02,005 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:02,006 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:02,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1735513866, now seen corresponding path program 1 times [2025-04-30 10:26:02,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:02,006 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004394868] [2025-04-30 10:26:02,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:02,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:02,020 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-04-30 10:26:02,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-04-30 10:26:02,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:02,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:02,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:02,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:02,049 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004394868] [2025-04-30 10:26:02,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004394868] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:02,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:02,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:26:02,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850006142] [2025-04-30 10:26:02,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:02,049 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:26:02,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:02,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:26:02,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:26:02,073 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 69 [2025-04-30 10:26:02,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 78 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2025-04-30 10:26:02,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:02,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 69 [2025-04-30 10:26:02,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:02,118 INFO L116 PetriNetUnfolderBase]: 75/393 cut-off events. [2025-04-30 10:26:02,119 INFO L117 PetriNetUnfolderBase]: For 148/154 co-relation queries the response was YES. [2025-04-30 10:26:02,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 744 conditions, 393 events. 75/393 cut-off events. For 148/154 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2168 event pairs, 17 based on Foata normal form. 3/378 useless extension candidates. Maximal degree in co-relation 713. Up to 107 conditions per place. [2025-04-30 10:26:02,120 INFO L140 encePairwiseOnDemand]: 63/69 looper letters, 16 selfloop transitions, 8 changer transitions 8/87 dead transitions. [2025-04-30 10:26:02,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 87 transitions, 323 flow [2025-04-30 10:26:02,121 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:26:02,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:26:02,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 187 transitions. [2025-04-30 10:26:02,121 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9033816425120773 [2025-04-30 10:26:02,122 INFO L175 Difference]: Start difference. First operand has 75 places, 78 transitions, 228 flow. Second operand 3 states and 187 transitions. [2025-04-30 10:26:02,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 87 transitions, 323 flow [2025-04-30 10:26:02,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 87 transitions, 318 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-04-30 10:26:02,124 INFO L231 Difference]: Finished difference. Result has 78 places, 78 transitions, 264 flow [2025-04-30 10:26:02,124 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=78, PETRI_TRANSITIONS=78} [2025-04-30 10:26:02,124 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 9 predicate places. [2025-04-30 10:26:02,125 INFO L485 AbstractCegarLoop]: Abstraction has has 78 places, 78 transitions, 264 flow [2025-04-30 10:26:02,125 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2025-04-30 10:26:02,125 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:02,125 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] [2025-04-30 10:26:02,125 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-30 10:26:02,125 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:26:02,126 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:02,126 INFO L85 PathProgramCache]: Analyzing trace with hash 2007060714, now seen corresponding path program 1 times [2025-04-30 10:26:02,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:02,126 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057777901] [2025-04-30 10:26:02,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:02,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:02,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-04-30 10:26:02,135 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-04-30 10:26:02,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:02,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:02,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:02,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:02,211 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057777901] [2025-04-30 10:26:02,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057777901] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:02,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:02,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:26:02,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655317742] [2025-04-30 10:26:02,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:02,211 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:26:02,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:02,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:26:02,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:26:02,227 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 69 [2025-04-30 10:26:02,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 78 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2025-04-30 10:26:02,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:02,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 69 [2025-04-30 10:26:02,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:02,248 INFO L116 PetriNetUnfolderBase]: 1/117 cut-off events. [2025-04-30 10:26:02,248 INFO L117 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2025-04-30 10:26:02,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 117 events. 1/117 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 189 event pairs, 1 based on Foata normal form. 2/119 useless extension candidates. Maximal degree in co-relation 160. Up to 11 conditions per place. [2025-04-30 10:26:02,249 INFO L140 encePairwiseOnDemand]: 65/69 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2025-04-30 10:26:02,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 64 transitions, 194 flow [2025-04-30 10:26:02,250 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:26:02,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:26:02,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2025-04-30 10:26:02,251 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9516908212560387 [2025-04-30 10:26:02,251 INFO L175 Difference]: Start difference. First operand has 78 places, 78 transitions, 264 flow. Second operand 3 states and 197 transitions. [2025-04-30 10:26:02,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 64 transitions, 194 flow [2025-04-30 10:26:02,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 64 transitions, 158 flow, removed 7 selfloop flow, removed 6 redundant places. [2025-04-30 10:26:02,254 INFO L231 Difference]: Finished difference. Result has 70 places, 0 transitions, 0 flow [2025-04-30 10:26:02,254 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=70, PETRI_TRANSITIONS=0} [2025-04-30 10:26:02,254 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 1 predicate places. [2025-04-30 10:26:02,254 INFO L485 AbstractCegarLoop]: Abstraction has has 70 places, 0 transitions, 0 flow [2025-04-30 10:26:02,255 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2025-04-30 10:26:02,258 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2025-04-30 10:26:02,259 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2025-04-30 10:26:02,259 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-04-30 10:26:02,259 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2025-04-30 10:26:02,259 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2025-04-30 10:26:02,259 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2025-04-30 10:26:02,259 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2025-04-30 10:26:02,259 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-30 10:26:02,260 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-04-30 10:26:02,265 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:26:02,265 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:26:02,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:26:02 BasicIcfg [2025-04-30 10:26:02,270 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:26:02,271 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:26:02,271 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:26:02,271 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:26:02,272 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:26:01" (3/4) ... [2025-04-30 10:26:02,273 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-30 10:26:02,275 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-30 10:26:02,277 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-04-30 10:26:02,277 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-30 10:26:02,278 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-30 10:26:02,332 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:26:02,333 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:26:02,333 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:26:02,334 INFO L158 Benchmark]: Toolchain (without parser) took 1977.66ms. Allocated memory is still 201.3MB. Free memory was 153.7MB in the beginning and 92.3MB in the end (delta: 61.4MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2025-04-30 10:26:02,334 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 201.3MB. Free memory was 120.0MB in the beginning and 119.8MB in the end (delta: 188.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:26:02,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.37ms. Allocated memory is still 201.3MB. Free memory was 153.7MB in the beginning and 123.0MB in the end (delta: 30.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-30 10:26:02,336 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.55ms. Allocated memory is still 201.3MB. Free memory was 123.0MB in the beginning and 121.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:26:02,337 INFO L158 Benchmark]: Boogie Preprocessor took 29.59ms. Allocated memory is still 201.3MB. Free memory was 120.7MB in the beginning and 119.9MB in the end (delta: 749.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:26:02,337 INFO L158 Benchmark]: RCFGBuilder took 287.00ms. Allocated memory is still 201.3MB. Free memory was 119.9MB in the beginning and 105.5MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:26:02,338 INFO L158 Benchmark]: TraceAbstraction took 1073.57ms. Allocated memory is still 201.3MB. Free memory was 105.1MB in the beginning and 97.8MB in the end (delta: 7.3MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2025-04-30 10:26:02,338 INFO L158 Benchmark]: Witness Printer took 62.00ms. Allocated memory is still 201.3MB. Free memory was 97.8MB in the beginning and 92.3MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:26:02,339 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 201.3MB. Free memory was 120.0MB in the beginning and 119.8MB in the end (delta: 188.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.37ms. Allocated memory is still 201.3MB. Free memory was 153.7MB in the beginning and 123.0MB in the end (delta: 30.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.55ms. Allocated memory is still 201.3MB. Free memory was 123.0MB in the beginning and 121.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.59ms. Allocated memory is still 201.3MB. Free memory was 120.7MB in the beginning and 119.9MB in the end (delta: 749.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 287.00ms. Allocated memory is still 201.3MB. Free memory was 119.9MB in the beginning and 105.5MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1073.57ms. Allocated memory is still 201.3MB. Free memory was 105.1MB in the beginning and 97.8MB in the end (delta: 7.3MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Witness Printer took 62.00ms. Allocated memory is still 201.3MB. Free memory was 97.8MB in the beginning and 92.3MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 945]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 945]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 932]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 932]: 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, 87 locations, 88 edges, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 141 IncrementalHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 28 mSDtfsCounter, 141 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=264occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 184 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-30 10:26:02,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE