./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_22-deref_read.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_22-deref_read.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 8d306ff8cfbc22ceebe04735dbb58cf2d83206c78fa42d12e01716373b332b54 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 21:56:59,529 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 21:56:59,574 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 21:56:59,579 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 21:56:59,579 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 21:56:59,600 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 21:56:59,600 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 21:56:59,601 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 21:56:59,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 21:56:59,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 21:56:59,601 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 21:56:59,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 21:56:59,601 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 21:56:59,601 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 21:56:59,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 21:56:59,601 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 21:56:59,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 21:56:59,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 21:56:59,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 21:56:59,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 21:56:59,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 21:56:59,602 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 21:56:59,602 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 21:56:59,602 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 21:56:59,602 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 21:56:59,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 21:56:59,602 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 21:56:59,602 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 21:56:59,602 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 21:56:59,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 21:56:59,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 21:56:59,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 21:56:59,602 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 21:56:59,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 21:56:59,604 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 21:56:59,604 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 21:56:59,604 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 21:56:59,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 21:56:59,604 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 21:56:59,604 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 21:56:59,604 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 21:56:59,604 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 21:56:59,604 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 -> 8d306ff8cfbc22ceebe04735dbb58cf2d83206c78fa42d12e01716373b332b54 [2025-03-08 21:56:59,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 21:56:59,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 21:56:59,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 21:56:59,835 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 21:56:59,836 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 21:56:59,836 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_22-deref_read.i [2025-03-08 21:57:00,940 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd6d08f69/3b326c4742ee4c779c97677d3d7a3c1c/FLAG24a9d6781 [2025-03-08 21:57:01,224 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 21:57:01,224 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_22-deref_read.i [2025-03-08 21:57:01,239 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd6d08f69/3b326c4742ee4c779c97677d3d7a3c1c/FLAG24a9d6781 [2025-03-08 21:57:01,515 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd6d08f69/3b326c4742ee4c779c97677d3d7a3c1c [2025-03-08 21:57:01,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 21:57:01,518 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 21:57:01,518 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 21:57:01,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 21:57:01,522 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 21:57:01,522 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:57:01" (1/1) ... [2025-03-08 21:57:01,523 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c922ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:01, skipping insertion in model container [2025-03-08 21:57:01,523 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:57:01" (1/1) ... [2025-03-08 21:57:01,546 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 21:57:01,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 21:57:01,718 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 21:57:01,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 21:57:01,769 INFO L204 MainTranslator]: Completed translation [2025-03-08 21:57:01,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:01 WrapperNode [2025-03-08 21:57:01,769 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 21:57:01,770 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 21:57:01,770 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 21:57:01,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 21:57:01,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:01" (1/1) ... [2025-03-08 21:57:01,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:01" (1/1) ... [2025-03-08 21:57:01,796 INFO L138 Inliner]: procedures = 162, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2025-03-08 21:57:01,796 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 21:57:01,797 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 21:57:01,797 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 21:57:01,797 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 21:57:01,800 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:01" (1/1) ... [2025-03-08 21:57:01,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:01" (1/1) ... [2025-03-08 21:57:01,802 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:01" (1/1) ... [2025-03-08 21:57:01,802 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:01" (1/1) ... [2025-03-08 21:57:01,806 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:01" (1/1) ... [2025-03-08 21:57:01,806 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:01" (1/1) ... [2025-03-08 21:57:01,809 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:01" (1/1) ... [2025-03-08 21:57:01,810 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:01" (1/1) ... [2025-03-08 21:57:01,811 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 21:57:01,811 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 21:57:01,812 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 21:57:01,812 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 21:57:01,812 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:01" (1/1) ... [2025-03-08 21:57:01,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 21:57:01,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:57:01,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 21:57:01,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 21:57:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-08 21:57:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-08 21:57:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 21:57:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-08 21:57:01,858 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-08 21:57:01,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 21:57:01,858 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-08 21:57:01,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 21:57:01,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 21:57:01,859 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 21:57:01,935 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 21:57:01,936 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 21:57:02,043 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 21:57:02,043 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 21:57:02,057 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 21:57:02,057 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 21:57:02,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:57:02 BoogieIcfgContainer [2025-03-08 21:57:02,058 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 21:57:02,059 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 21:57:02,060 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 21:57:02,063 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 21:57:02,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 09:57:01" (1/3) ... [2025-03-08 21:57:02,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25601194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:57:02, skipping insertion in model container [2025-03-08 21:57:02,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:57:01" (2/3) ... [2025-03-08 21:57:02,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25601194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:57:02, skipping insertion in model container [2025-03-08 21:57:02,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:57:02" (3/3) ... [2025-03-08 21:57:02,065 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_22-deref_read.i [2025-03-08 21:57:02,076 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 21:57:02,077 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_22-deref_read.i that has 2 procedures, 73 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-03-08 21:57:02,078 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 21:57:02,113 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-08 21:57:02,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 72 transitions, 148 flow [2025-03-08 21:57:02,166 INFO L124 PetriNetUnfolderBase]: 0/71 cut-off events. [2025-03-08 21:57:02,168 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:57:02,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 0/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-03-08 21:57:02,171 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 72 transitions, 148 flow [2025-03-08 21:57:02,173 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 71 transitions, 145 flow [2025-03-08 21:57:02,179 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 21:57:02,192 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;@5b4d309b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 21:57:02,192 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-08 21:57:02,200 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 21:57:02,200 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2025-03-08 21:57:02,200 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:57:02,200 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:02,200 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] [2025-03-08 21:57:02,201 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:02,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:02,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1271105756, now seen corresponding path program 1 times [2025-03-08 21:57:02,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:02,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664854115] [2025-03-08 21:57:02,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:02,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:02,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-08 21:57:02,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-08 21:57:02,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:02,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:02,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:02,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:02,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664854115] [2025-03-08 21:57:02,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664854115] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:02,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:02,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:57:02,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603906873] [2025-03-08 21:57:02,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:02,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:02,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:02,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:02,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:02,425 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 72 [2025-03-08 21:57:02,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:02,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:02,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 72 [2025-03-08 21:57:02,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:02,488 INFO L124 PetriNetUnfolderBase]: 16/173 cut-off events. [2025-03-08 21:57:02,489 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 21:57:02,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 173 events. 16/173 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 553 event pairs, 9 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 192. Up to 39 conditions per place. [2025-03-08 21:57:02,492 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 10 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2025-03-08 21:57:02,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 72 transitions, 171 flow [2025-03-08 21:57:02,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:02,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:02,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2025-03-08 21:57:02,501 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9120370370370371 [2025-03-08 21:57:02,502 INFO L175 Difference]: Start difference. First operand has 75 places, 71 transitions, 145 flow. Second operand 3 states and 197 transitions. [2025-03-08 21:57:02,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 72 transitions, 171 flow [2025-03-08 21:57:02,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 72 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 21:57:02,508 INFO L231 Difference]: Finished difference. Result has 75 places, 71 transitions, 154 flow [2025-03-08 21:57:02,510 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=75, PETRI_TRANSITIONS=71} [2025-03-08 21:57:02,513 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 0 predicate places. [2025-03-08 21:57:02,513 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 71 transitions, 154 flow [2025-03-08 21:57:02,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:02,514 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:02,514 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] [2025-03-08 21:57:02,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 21:57:02,514 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:02,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:02,515 INFO L85 PathProgramCache]: Analyzing trace with hash 989824677, now seen corresponding path program 1 times [2025-03-08 21:57:02,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:02,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022611476] [2025-03-08 21:57:02,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:02,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:02,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-08 21:57:02,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-08 21:57:02,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:02,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:02,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:02,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:02,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022611476] [2025-03-08 21:57:02,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022611476] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:02,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:02,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:57:02,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436271803] [2025-03-08 21:57:02,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:02,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:02,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:02,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:02,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:02,590 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 72 [2025-03-08 21:57:02,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:02,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:02,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 72 [2025-03-08 21:57:02,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:02,644 INFO L124 PetriNetUnfolderBase]: 17/163 cut-off events. [2025-03-08 21:57:02,644 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:57:02,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 163 events. 17/163 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 514 event pairs, 12 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 192. Up to 36 conditions per place. [2025-03-08 21:57:02,646 INFO L140 encePairwiseOnDemand]: 69/72 looper letters, 12 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2025-03-08 21:57:02,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 72 transitions, 184 flow [2025-03-08 21:57:02,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:02,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:02,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 192 transitions. [2025-03-08 21:57:02,647 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2025-03-08 21:57:02,647 INFO L175 Difference]: Start difference. First operand has 75 places, 71 transitions, 154 flow. Second operand 3 states and 192 transitions. [2025-03-08 21:57:02,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 72 transitions, 184 flow [2025-03-08 21:57:02,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 72 transitions, 184 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 21:57:02,650 INFO L231 Difference]: Finished difference. Result has 76 places, 70 transitions, 156 flow [2025-03-08 21:57:02,652 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=76, PETRI_TRANSITIONS=70} [2025-03-08 21:57:02,653 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 1 predicate places. [2025-03-08 21:57:02,653 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 70 transitions, 156 flow [2025-03-08 21:57:02,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:02,653 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:02,653 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] [2025-03-08 21:57:02,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 21:57:02,654 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:02,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:02,654 INFO L85 PathProgramCache]: Analyzing trace with hash 169707572, now seen corresponding path program 1 times [2025-03-08 21:57:02,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:02,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96440956] [2025-03-08 21:57:02,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:02,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:02,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-08 21:57:02,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-08 21:57:02,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:02,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:03,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:03,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:03,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96440956] [2025-03-08 21:57:03,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96440956] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:03,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:03,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 21:57:03,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526432870] [2025-03-08 21:57:03,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:03,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 21:57:03,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:03,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 21:57:03,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 21:57:03,146 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 72 [2025-03-08 21:57:03,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 70 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:03,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:03,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 72 [2025-03-08 21:57:03,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:03,276 INFO L124 PetriNetUnfolderBase]: 79/330 cut-off events. [2025-03-08 21:57:03,277 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:57:03,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 330 events. 79/330 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1463 event pairs, 25 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 504. Up to 133 conditions per place. [2025-03-08 21:57:03,279 INFO L140 encePairwiseOnDemand]: 61/72 looper letters, 21 selfloop transitions, 22 changer transitions 4/99 dead transitions. [2025-03-08 21:57:03,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 99 transitions, 308 flow [2025-03-08 21:57:03,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 21:57:03,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 21:57:03,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 372 transitions. [2025-03-08 21:57:03,283 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8611111111111112 [2025-03-08 21:57:03,283 INFO L175 Difference]: Start difference. First operand has 76 places, 70 transitions, 156 flow. Second operand 6 states and 372 transitions. [2025-03-08 21:57:03,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 99 transitions, 308 flow [2025-03-08 21:57:03,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 99 transitions, 304 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 21:57:03,285 INFO L231 Difference]: Finished difference. Result has 84 places, 91 transitions, 302 flow [2025-03-08 21:57:03,285 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=302, PETRI_PLACES=84, PETRI_TRANSITIONS=91} [2025-03-08 21:57:03,286 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 9 predicate places. [2025-03-08 21:57:03,286 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 91 transitions, 302 flow [2025-03-08 21:57:03,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:03,286 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:03,286 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:03,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 21:57:03,286 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:03,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:03,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1770000840, now seen corresponding path program 1 times [2025-03-08 21:57:03,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:03,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781961975] [2025-03-08 21:57:03,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:03,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:03,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-08 21:57:03,300 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-08 21:57:03,301 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:03,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:03,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:03,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:03,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781961975] [2025-03-08 21:57:03,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781961975] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:03,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:03,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:57:03,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527324475] [2025-03-08 21:57:03,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:03,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:03,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:03,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:03,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:03,324 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 72 [2025-03-08 21:57:03,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 91 transitions, 302 flow. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:03,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:03,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 72 [2025-03-08 21:57:03,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:03,360 INFO L124 PetriNetUnfolderBase]: 50/298 cut-off events. [2025-03-08 21:57:03,360 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2025-03-08 21:57:03,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 298 events. 50/298 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1229 event pairs, 8 based on Foata normal form. 0/286 useless extension candidates. Maximal degree in co-relation 506. Up to 60 conditions per place. [2025-03-08 21:57:03,362 INFO L140 encePairwiseOnDemand]: 70/72 looper letters, 9 selfloop transitions, 1 changer transitions 0/92 dead transitions. [2025-03-08 21:57:03,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 92 transitions, 324 flow [2025-03-08 21:57:03,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:03,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:03,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2025-03-08 21:57:03,364 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9259259259259259 [2025-03-08 21:57:03,364 INFO L175 Difference]: Start difference. First operand has 84 places, 91 transitions, 302 flow. Second operand 3 states and 200 transitions. [2025-03-08 21:57:03,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 92 transitions, 324 flow [2025-03-08 21:57:03,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 92 transitions, 324 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 21:57:03,369 INFO L231 Difference]: Finished difference. Result has 85 places, 90 transitions, 302 flow [2025-03-08 21:57:03,370 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=302, PETRI_PLACES=85, PETRI_TRANSITIONS=90} [2025-03-08 21:57:03,370 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 10 predicate places. [2025-03-08 21:57:03,371 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 90 transitions, 302 flow [2025-03-08 21:57:03,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:03,371 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:03,371 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] [2025-03-08 21:57:03,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 21:57:03,371 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:03,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:03,371 INFO L85 PathProgramCache]: Analyzing trace with hash 578894542, now seen corresponding path program 1 times [2025-03-08 21:57:03,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:03,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122519930] [2025-03-08 21:57:03,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:03,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:03,381 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-08 21:57:03,388 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-08 21:57:03,388 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:03,388 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:03,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:03,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:03,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122519930] [2025-03-08 21:57:03,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122519930] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:03,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:03,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 21:57:03,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649222867] [2025-03-08 21:57:03,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:03,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 21:57:03,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:03,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 21:57:03,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 21:57:03,650 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 72 [2025-03-08 21:57:03,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 90 transitions, 302 flow. Second operand has 6 states, 6 states have (on average 52.833333333333336) internal successors, (317), 6 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:03,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:03,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 72 [2025-03-08 21:57:03,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:03,749 INFO L124 PetriNetUnfolderBase]: 138/485 cut-off events. [2025-03-08 21:57:03,749 INFO L125 PetriNetUnfolderBase]: For 146/168 co-relation queries the response was YES. [2025-03-08 21:57:03,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 485 events. 138/485 cut-off events. For 146/168 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2414 event pairs, 37 based on Foata normal form. 0/471 useless extension candidates. Maximal degree in co-relation 1094. Up to 235 conditions per place. [2025-03-08 21:57:03,751 INFO L140 encePairwiseOnDemand]: 61/72 looper letters, 39 selfloop transitions, 29 changer transitions 7/125 dead transitions. [2025-03-08 21:57:03,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 125 transitions, 592 flow [2025-03-08 21:57:03,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 21:57:03,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 21:57:03,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 357 transitions. [2025-03-08 21:57:03,753 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8263888888888888 [2025-03-08 21:57:03,753 INFO L175 Difference]: Start difference. First operand has 85 places, 90 transitions, 302 flow. Second operand 6 states and 357 transitions. [2025-03-08 21:57:03,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 125 transitions, 592 flow [2025-03-08 21:57:03,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 125 transitions, 591 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-08 21:57:03,757 INFO L231 Difference]: Finished difference. Result has 94 places, 114 transitions, 555 flow [2025-03-08 21:57:03,757 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=555, PETRI_PLACES=94, PETRI_TRANSITIONS=114} [2025-03-08 21:57:03,757 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, 19 predicate places. [2025-03-08 21:57:03,758 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 114 transitions, 555 flow [2025-03-08 21:57:03,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.833333333333336) internal successors, (317), 6 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:03,758 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:57:03,758 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:57:03,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 21:57:03,758 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-03-08 21:57:03,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:57:03,759 INFO L85 PathProgramCache]: Analyzing trace with hash 697160840, now seen corresponding path program 1 times [2025-03-08 21:57:03,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:57:03,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343451766] [2025-03-08 21:57:03,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:57:03,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:57:03,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-08 21:57:03,776 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-08 21:57:03,776 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:57:03,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:57:03,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:57:03,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:57:03,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343451766] [2025-03-08 21:57:03,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343451766] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:57:03,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:57:03,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 21:57:03,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093798595] [2025-03-08 21:57:03,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:57:03,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:57:03,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:57:03,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:57:03,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:57:03,831 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 72 [2025-03-08 21:57:03,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 114 transitions, 555 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:03,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:57:03,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 72 [2025-03-08 21:57:03,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:57:03,846 INFO L124 PetriNetUnfolderBase]: 2/109 cut-off events. [2025-03-08 21:57:03,846 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2025-03-08 21:57:03,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 109 events. 2/109 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 142 event pairs, 1 based on Foata normal form. 2/111 useless extension candidates. Maximal degree in co-relation 181. Up to 12 conditions per place. [2025-03-08 21:57:03,846 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 0 selfloop transitions, 0 changer transitions 67/67 dead transitions. [2025-03-08 21:57:03,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 67 transitions, 219 flow [2025-03-08 21:57:03,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:57:03,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:57:03,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 206 transitions. [2025-03-08 21:57:03,847 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9537037037037037 [2025-03-08 21:57:03,847 INFO L175 Difference]: Start difference. First operand has 94 places, 114 transitions, 555 flow. Second operand 3 states and 206 transitions. [2025-03-08 21:57:03,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 67 transitions, 219 flow [2025-03-08 21:57:03,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 67 transitions, 159 flow, removed 10 selfloop flow, removed 20 redundant places. [2025-03-08 21:57:03,849 INFO L231 Difference]: Finished difference. Result has 74 places, 0 transitions, 0 flow [2025-03-08 21:57:03,849 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=74, PETRI_TRANSITIONS=0} [2025-03-08 21:57:03,849 INFO L279 CegarLoopForPetriNet]: 75 programPoint places, -1 predicate places. [2025-03-08 21:57:03,850 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 0 transitions, 0 flow [2025-03-08 21:57:03,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:57:03,851 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2025-03-08 21:57:03,852 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2025-03-08 21:57:03,852 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2025-03-08 21:57:03,852 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2025-03-08 21:57:03,852 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2025-03-08 21:57:03,852 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2025-03-08 21:57:03,852 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2025-03-08 21:57:03,852 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2025-03-08 21:57:03,852 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2025-03-08 21:57:03,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 21:57:03,853 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-08 21:57:03,856 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-08 21:57:03,856 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 21:57:03,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 09:57:03 BasicIcfg [2025-03-08 21:57:03,859 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 21:57:03,860 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 21:57:03,860 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 21:57:03,860 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 21:57:03,861 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:57:02" (3/4) ... [2025-03-08 21:57:03,862 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 21:57:03,864 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-08 21:57:03,866 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-08 21:57:03,866 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-08 21:57:03,866 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-08 21:57:03,911 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 21:57:03,911 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 21:57:03,911 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 21:57:03,912 INFO L158 Benchmark]: Toolchain (without parser) took 2394.54ms. Allocated memory is still 167.8MB. Free memory was 123.8MB in the beginning and 76.6MB in the end (delta: 47.2MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2025-03-08 21:57:03,912 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 21:57:03,912 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.14ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 104.5MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 21:57:03,912 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.40ms. Allocated memory is still 167.8MB. Free memory was 104.5MB in the beginning and 102.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 21:57:03,912 INFO L158 Benchmark]: Boogie Preprocessor took 14.16ms. Allocated memory is still 167.8MB. Free memory was 102.4MB in the beginning and 101.7MB in the end (delta: 703.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 21:57:03,913 INFO L158 Benchmark]: IcfgBuilder took 246.48ms. Allocated memory is still 167.8MB. Free memory was 101.7MB in the beginning and 87.0MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 21:57:03,913 INFO L158 Benchmark]: TraceAbstraction took 1800.08ms. Allocated memory is still 167.8MB. Free memory was 86.3MB in the beginning and 80.9MB in the end (delta: 5.4MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2025-03-08 21:57:03,913 INFO L158 Benchmark]: Witness Printer took 51.55ms. Allocated memory is still 167.8MB. Free memory was 80.9MB in the beginning and 76.6MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 21:57:03,914 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.14ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 104.5MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.40ms. Allocated memory is still 167.8MB. Free memory was 104.5MB in the beginning and 102.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.16ms. Allocated memory is still 167.8MB. Free memory was 102.4MB in the beginning and 101.7MB in the end (delta: 703.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 246.48ms. Allocated memory is still 167.8MB. Free memory was 101.7MB in the beginning and 87.0MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1800.08ms. Allocated memory is still 167.8MB. Free memory was 86.3MB in the beginning and 80.9MB in the end (delta: 5.4MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * Witness Printer took 51.55ms. Allocated memory is still 167.8MB. Free memory was 80.9MB in the beginning and 76.6MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 684]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 684]: 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, 94 locations, 92 edges, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 309 IncrementalHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 12 mSDtfsCounter, 309 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=555occurred in iteration=5, InterpolantAutomatonStates: 24, 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, 0.8s InterpolantComputationTime, 211 NumberOfCodeBlocks, 211 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 205 ConstructedInterpolants, 0 QuantifiedInterpolants, 409 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-08 21:57:03,926 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