./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 798a7b37 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/04-mutex_17-ps_add1_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 013bb91f520a17a9cdc0cfee70ba812e0f5d104f38897431df1c1d9fa0ad9ebb --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:44:51,565 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:44:51,610 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:44:51,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:44:51,618 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:44:51,638 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:44:51,640 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:44:51,640 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:44:51,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:44:51,641 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:44:51,641 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:44:51,642 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:44:51,642 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:44:51,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:44:51,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:44:51,642 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:44:51,643 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:44:51,643 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:44:51,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:44:51,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:44:51,643 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:44:51,643 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:44:51,643 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:44:51,643 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:44:51,643 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:44:51,643 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:44:51,643 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:44:51,643 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:44:51,643 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:44:51,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:44:51,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:44:51,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:44:51,644 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:44:51,644 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:44:51,644 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:44:51,644 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:44:51,644 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:44:51,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:44:51,644 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:44:51,645 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:44:51,645 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:44:51,645 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:44:51,645 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 -> 013bb91f520a17a9cdc0cfee70ba812e0f5d104f38897431df1c1d9fa0ad9ebb [2025-03-04 06:44:51,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:44:51,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:44:51,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:44:51,910 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:44:51,910 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:44:51,911 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i [2025-03-04 06:44:53,094 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdc3ec55c/d730f246496b4d3185c9b0d7b98f7f39/FLAGa56d941c3 [2025-03-04 06:44:53,399 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:44:53,399 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_17-ps_add1_nr.i [2025-03-04 06:44:53,413 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdc3ec55c/d730f246496b4d3185c9b0d7b98f7f39/FLAGa56d941c3 [2025-03-04 06:44:53,675 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdc3ec55c/d730f246496b4d3185c9b0d7b98f7f39 [2025-03-04 06:44:53,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:44:53,678 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:44:53,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:44:53,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:44:53,683 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:44:53,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:44:53" (1/1) ... [2025-03-04 06:44:53,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ad4952b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:53, skipping insertion in model container [2025-03-04 06:44:53,685 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:44:53" (1/1) ... [2025-03-04 06:44:53,715 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:44:54,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:44:54,074 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:44:54,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:44:54,152 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:44:54,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:54 WrapperNode [2025-03-04 06:44:54,155 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:44:54,155 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:44:54,156 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:44:54,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:44:54,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:54" (1/1) ... [2025-03-04 06:44:54,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:54" (1/1) ... [2025-03-04 06:44:54,189 INFO L138 Inliner]: procedures = 266, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2025-03-04 06:44:54,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:44:54,191 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:44:54,191 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:44:54,192 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:44:54,196 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:54" (1/1) ... [2025-03-04 06:44:54,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:54" (1/1) ... [2025-03-04 06:44:54,198 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:54" (1/1) ... [2025-03-04 06:44:54,201 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:54" (1/1) ... [2025-03-04 06:44:54,204 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:54" (1/1) ... [2025-03-04 06:44:54,207 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:54" (1/1) ... [2025-03-04 06:44:54,208 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:54" (1/1) ... [2025-03-04 06:44:54,210 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:54" (1/1) ... [2025-03-04 06:44:54,211 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:44:54,215 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:44:54,215 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:44:54,215 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:44:54,216 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:54" (1/1) ... [2025-03-04 06:44:54,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:44:54,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:44:54,243 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) [2025-03-04 06:44:54,247 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 [2025-03-04 06:44:54,260 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 06:44:54,260 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 06:44:54,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:44:54,260 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-04 06:44:54,260 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-04 06:44:54,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:44:54,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:44:54,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:44:54,261 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 06:44:54,353 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:44:54,355 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:44:54,481 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:44:54,482 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:44:54,503 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:44:54,504 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:44:54,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:44:54 BoogieIcfgContainer [2025-03-04 06:44:54,505 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:44:54,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:44:54,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:44:54,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:44:54,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:44:53" (1/3) ... [2025-03-04 06:44:54,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e7419d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:44:54, skipping insertion in model container [2025-03-04 06:44:54,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:44:54" (2/3) ... [2025-03-04 06:44:54,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e7419d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:44:54, skipping insertion in model container [2025-03-04 06:44:54,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:44:54" (3/3) ... [2025-03-04 06:44:54,513 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_17-ps_add1_nr.i [2025-03-04 06:44:54,524 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:44:54,527 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_17-ps_add1_nr.i that has 2 procedures, 75 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-03-04 06:44:54,527 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:44:54,571 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 06:44:54,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 78 transitions, 160 flow [2025-03-04 06:44:54,635 INFO L124 PetriNetUnfolderBase]: 4/77 cut-off events. [2025-03-04 06:44:54,638 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:44:54,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 4/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 105 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2025-03-04 06:44:54,641 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 78 transitions, 160 flow [2025-03-04 06:44:54,646 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 77 transitions, 157 flow [2025-03-04 06:44:54,655 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:44:54,666 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;@167dd758, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:44:54,666 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-04 06:44:54,679 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:44:54,680 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2025-03-04 06:44:54,680 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:44:54,680 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:54,682 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] [2025-03-04 06:44:54,682 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-04 06:44:54,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:54,686 INFO L85 PathProgramCache]: Analyzing trace with hash 883794537, now seen corresponding path program 1 times [2025-03-04 06:44:54,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:54,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667464259] [2025-03-04 06:44:54,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:54,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:54,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 06:44:54,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 06:44:54,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:54,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:54,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:44:54,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:54,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667464259] [2025-03-04 06:44:54,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667464259] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:54,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:54,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:44:54,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159642854] [2025-03-04 06:44:54,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:54,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:44:54,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:54,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:44:54,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:44:54,957 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 78 [2025-03-04 06:44:54,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 77 transitions, 157 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2025-03-04 06:44:54,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:54,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 78 [2025-03-04 06:44:54,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:55,049 INFO L124 PetriNetUnfolderBase]: 46/289 cut-off events. [2025-03-04 06:44:55,049 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:44:55,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 289 events. 46/289 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1317 event pairs, 6 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 351. Up to 45 conditions per place. [2025-03-04 06:44:55,052 INFO L140 encePairwiseOnDemand]: 70/78 looper letters, 17 selfloop transitions, 6 changer transitions 0/87 dead transitions. [2025-03-04 06:44:55,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 87 transitions, 223 flow [2025-03-04 06:44:55,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:44:55,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:44:55,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2025-03-04 06:44:55,064 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9401709401709402 [2025-03-04 06:44:55,065 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 157 flow. Second operand 3 states and 220 transitions. [2025-03-04 06:44:55,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 87 transitions, 223 flow [2025-03-04 06:44:55,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 87 transitions, 222 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:44:55,073 INFO L231 Difference]: Finished difference. Result has 80 places, 83 transitions, 208 flow [2025-03-04 06:44:55,075 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=80, PETRI_TRANSITIONS=83} [2025-03-04 06:44:55,079 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 3 predicate places. [2025-03-04 06:44:55,079 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 83 transitions, 208 flow [2025-03-04 06:44:55,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2025-03-04 06:44:55,079 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:55,079 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:44:55,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:44:55,080 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-04 06:44:55,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:55,080 INFO L85 PathProgramCache]: Analyzing trace with hash -601878771, now seen corresponding path program 1 times [2025-03-04 06:44:55,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:55,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409757800] [2025-03-04 06:44:55,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:55,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:55,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 06:44:55,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 06:44:55,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:55,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:55,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:44:55,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:55,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409757800] [2025-03-04 06:44:55,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409757800] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:55,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:55,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:44:55,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909474951] [2025-03-04 06:44:55,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:55,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:44:55,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:55,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:44:55,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:44:55,157 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 78 [2025-03-04 06:44:55,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 83 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2025-03-04 06:44:55,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:55,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 78 [2025-03-04 06:44:55,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:55,216 INFO L124 PetriNetUnfolderBase]: 63/326 cut-off events. [2025-03-04 06:44:55,216 INFO L125 PetriNetUnfolderBase]: For 102/132 co-relation queries the response was YES. [2025-03-04 06:44:55,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 326 events. 63/326 cut-off events. For 102/132 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1640 event pairs, 16 based on Foata normal form. 1/281 useless extension candidates. Maximal degree in co-relation 520. Up to 93 conditions per place. [2025-03-04 06:44:55,220 INFO L140 encePairwiseOnDemand]: 72/78 looper letters, 16 selfloop transitions, 7 changer transitions 4/90 dead transitions. [2025-03-04 06:44:55,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 90 transitions, 280 flow [2025-03-04 06:44:55,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:44:55,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:44:55,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2025-03-04 06:44:55,223 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9188034188034188 [2025-03-04 06:44:55,223 INFO L175 Difference]: Start difference. First operand has 80 places, 83 transitions, 208 flow. Second operand 3 states and 215 transitions. [2025-03-04 06:44:55,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 90 transitions, 280 flow [2025-03-04 06:44:55,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 90 transitions, 264 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:44:55,225 INFO L231 Difference]: Finished difference. Result has 82 places, 85 transitions, 246 flow [2025-03-04 06:44:55,225 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=82, PETRI_TRANSITIONS=85} [2025-03-04 06:44:55,227 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 5 predicate places. [2025-03-04 06:44:55,227 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 85 transitions, 246 flow [2025-03-04 06:44:55,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2025-03-04 06:44:55,228 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:55,228 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] [2025-03-04 06:44:55,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 06:44:55,228 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-04 06:44:55,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:55,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1820224085, now seen corresponding path program 1 times [2025-03-04 06:44:55,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:55,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049702365] [2025-03-04 06:44:55,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:55,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:55,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-04 06:44:55,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-04 06:44:55,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:55,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:55,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:44:55,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:55,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049702365] [2025-03-04 06:44:55,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049702365] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:55,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:55,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:44:55,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127036919] [2025-03-04 06:44:55,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:55,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:44:55,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:55,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:44:55,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:44:55,328 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 78 [2025-03-04 06:44:55,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 85 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2025-03-04 06:44:55,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:55,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 78 [2025-03-04 06:44:55,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:55,390 INFO L124 PetriNetUnfolderBase]: 75/393 cut-off events. [2025-03-04 06:44:55,391 INFO L125 PetriNetUnfolderBase]: For 188/217 co-relation queries the response was YES. [2025-03-04 06:44:55,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 393 events. 75/393 cut-off events. For 188/217 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1997 event pairs, 18 based on Foata normal form. 1/361 useless extension candidates. Maximal degree in co-relation 690. Up to 99 conditions per place. [2025-03-04 06:44:55,392 INFO L140 encePairwiseOnDemand]: 72/78 looper letters, 16 selfloop transitions, 7 changer transitions 7/93 dead transitions. [2025-03-04 06:44:55,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 93 transitions, 334 flow [2025-03-04 06:44:55,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:44:55,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:44:55,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2025-03-04 06:44:55,396 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9145299145299145 [2025-03-04 06:44:55,396 INFO L175 Difference]: Start difference. First operand has 82 places, 85 transitions, 246 flow. Second operand 3 states and 214 transitions. [2025-03-04 06:44:55,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 93 transitions, 334 flow [2025-03-04 06:44:55,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 93 transitions, 316 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:44:55,400 INFO L231 Difference]: Finished difference. Result has 83 places, 85 transitions, 268 flow [2025-03-04 06:44:55,401 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=83, PETRI_TRANSITIONS=85} [2025-03-04 06:44:55,401 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 6 predicate places. [2025-03-04 06:44:55,401 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 85 transitions, 268 flow [2025-03-04 06:44:55,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2025-03-04 06:44:55,401 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:55,401 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:44:55,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 06:44:55,402 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-04 06:44:55,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:55,402 INFO L85 PathProgramCache]: Analyzing trace with hash 918286161, now seen corresponding path program 1 times [2025-03-04 06:44:55,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:55,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203048691] [2025-03-04 06:44:55,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:55,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:55,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-04 06:44:55,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-04 06:44:55,427 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:55,427 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:55,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:44:55,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:55,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203048691] [2025-03-04 06:44:55,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203048691] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:55,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:55,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:44:55,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331551020] [2025-03-04 06:44:55,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:55,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 06:44:55,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:55,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 06:44:55,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 06:44:55,576 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 78 [2025-03-04 06:44:55,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 85 transitions, 268 flow. Second operand has 5 states, 5 states have (on average 60.8) internal successors, (304), 5 states have internal predecessors, (304), 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) [2025-03-04 06:44:55,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:55,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 78 [2025-03-04 06:44:55,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:55,681 INFO L124 PetriNetUnfolderBase]: 62/409 cut-off events. [2025-03-04 06:44:55,681 INFO L125 PetriNetUnfolderBase]: For 188/190 co-relation queries the response was YES. [2025-03-04 06:44:55,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 754 conditions, 409 events. 62/409 cut-off events. For 188/190 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2275 event pairs, 27 based on Foata normal form. 3/382 useless extension candidates. Maximal degree in co-relation 722. Up to 94 conditions per place. [2025-03-04 06:44:55,683 INFO L140 encePairwiseOnDemand]: 71/78 looper letters, 15 selfloop transitions, 2 changer transitions 12/97 dead transitions. [2025-03-04 06:44:55,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 97 transitions, 354 flow [2025-03-04 06:44:55,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:44:55,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:44:55,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 384 transitions. [2025-03-04 06:44:55,686 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8205128205128205 [2025-03-04 06:44:55,686 INFO L175 Difference]: Start difference. First operand has 83 places, 85 transitions, 268 flow. Second operand 6 states and 384 transitions. [2025-03-04 06:44:55,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 97 transitions, 354 flow [2025-03-04 06:44:55,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 97 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:44:55,689 INFO L231 Difference]: Finished difference. Result has 90 places, 85 transitions, 272 flow [2025-03-04 06:44:55,689 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=272, PETRI_PLACES=90, PETRI_TRANSITIONS=85} [2025-03-04 06:44:55,690 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 13 predicate places. [2025-03-04 06:44:55,690 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 85 transitions, 272 flow [2025-03-04 06:44:55,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.8) internal successors, (304), 5 states have internal predecessors, (304), 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) [2025-03-04 06:44:55,690 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:55,690 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] [2025-03-04 06:44:55,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 06:44:55,690 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-04 06:44:55,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:55,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1473993089, now seen corresponding path program 1 times [2025-03-04 06:44:55,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:55,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896035216] [2025-03-04 06:44:55,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:55,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:55,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-04 06:44:55,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-04 06:44:55,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:55,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:55,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:44:55,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:55,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896035216] [2025-03-04 06:44:55,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896035216] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:55,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:55,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 06:44:55,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693413406] [2025-03-04 06:44:55,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:55,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:44:55,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:55,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:44:55,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:44:55,800 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 78 [2025-03-04 06:44:55,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 85 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2025-03-04 06:44:55,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:55,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 78 [2025-03-04 06:44:55,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:55,831 INFO L124 PetriNetUnfolderBase]: 1/130 cut-off events. [2025-03-04 06:44:55,831 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2025-03-04 06:44:55,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 130 events. 1/130 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 204 event pairs, 1 based on Foata normal form. 2/132 useless extension candidates. Maximal degree in co-relation 183. Up to 11 conditions per place. [2025-03-04 06:44:55,832 INFO L140 encePairwiseOnDemand]: 74/78 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2025-03-04 06:44:55,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 71 transitions, 210 flow [2025-03-04 06:44:55,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:44:55,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:44:55,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2025-03-04 06:44:55,841 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9572649572649573 [2025-03-04 06:44:55,841 INFO L175 Difference]: Start difference. First operand has 90 places, 85 transitions, 272 flow. Second operand 3 states and 224 transitions. [2025-03-04 06:44:55,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 71 transitions, 210 flow [2025-03-04 06:44:55,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 71 transitions, 172 flow, removed 11 selfloop flow, removed 8 redundant places. [2025-03-04 06:44:55,843 INFO L231 Difference]: Finished difference. Result has 77 places, 0 transitions, 0 flow [2025-03-04 06:44:55,843 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=77, PETRI_TRANSITIONS=0} [2025-03-04 06:44:55,846 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 0 predicate places. [2025-03-04 06:44:55,846 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 0 transitions, 0 flow [2025-03-04 06:44:55,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2025-03-04 06:44:55,849 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2025-03-04 06:44:55,849 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2025-03-04 06:44:55,849 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-03-04 06:44:55,849 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2025-03-04 06:44:55,849 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2025-03-04 06:44:55,849 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2025-03-04 06:44:55,851 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2025-03-04 06:44:55,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 06:44:55,854 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-03-04 06:44:55,861 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 06:44:55,861 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 06:44:55,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 06:44:55 BasicIcfg [2025-03-04 06:44:55,866 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 06:44:55,866 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 06:44:55,866 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 06:44:55,867 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 06:44:55,867 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:44:54" (3/4) ... [2025-03-04 06:44:55,868 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 06:44:55,872 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-04 06:44:55,876 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-04 06:44:55,876 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-04 06:44:55,876 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-04 06:44:55,939 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 06:44:55,939 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 06:44:55,939 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 06:44:55,940 INFO L158 Benchmark]: Toolchain (without parser) took 2261.58ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 63.6MB in the end (delta: 40.1MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2025-03-04 06:44:55,940 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:44:55,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.54ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 76.5MB in the end (delta: 27.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 06:44:55,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.98ms. Allocated memory is still 142.6MB. Free memory was 76.5MB in the beginning and 74.2MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 06:44:55,940 INFO L158 Benchmark]: Boogie Preprocessor took 23.52ms. Allocated memory is still 142.6MB. Free memory was 74.2MB in the beginning and 73.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:44:55,941 INFO L158 Benchmark]: IcfgBuilder took 289.72ms. Allocated memory is still 142.6MB. Free memory was 73.2MB in the beginning and 58.6MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 06:44:55,941 INFO L158 Benchmark]: TraceAbstraction took 1359.62ms. Allocated memory is still 142.6MB. Free memory was 58.6MB in the beginning and 69.3MB in the end (delta: -10.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:44:55,941 INFO L158 Benchmark]: Witness Printer took 72.81ms. Allocated memory is still 142.6MB. Free memory was 69.3MB in the beginning and 63.6MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 06:44:55,942 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 475.54ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 76.5MB in the end (delta: 27.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.98ms. Allocated memory is still 142.6MB. Free memory was 76.5MB in the beginning and 74.2MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.52ms. Allocated memory is still 142.6MB. Free memory was 74.2MB in the beginning and 73.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 289.72ms. Allocated memory is still 142.6MB. Free memory was 73.2MB in the beginning and 58.6MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1359.62ms. Allocated memory is still 142.6MB. Free memory was 58.6MB in the beginning and 69.3MB in the end (delta: -10.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 72.81ms. Allocated memory is still 142.6MB. Free memory was 69.3MB in the beginning and 63.6MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 949]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 949]: 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, 95 locations, 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: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 122 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 195 IncrementalHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 10 mSDtfsCounter, 195 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=272occurred in iteration=4, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 181 ConstructedInterpolants, 0 QuantifiedInterpolants, 247 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! [2025-03-04 06:44:55,957 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