./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/10-synch_01-thread_unique.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 735b3cc8 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/10-synch_01-thread_unique.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 1f1f1c8f9ab1c230a124cee5d642a3f2063dd1bf51b20bdb3c19b17194d93f67 --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 01:38:22,389 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 01:38:22,447 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-14 01:38:22,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 01:38:22,455 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 01:38:22,477 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 01:38:22,478 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 01:38:22,478 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 01:38:22,479 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 01:38:22,479 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 01:38:22,479 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 01:38:22,480 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 01:38:22,480 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 01:38:22,480 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 01:38:22,480 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 01:38:22,481 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 01:38:22,481 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 01:38:22,481 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 01:38:22,481 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 01:38:22,481 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 01:38:22,481 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 01:38:22,481 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 01:38:22,482 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-14 01:38:22,482 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-14 01:38:22,482 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 01:38:22,482 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 01:38:22,482 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 01:38:22,482 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 01:38:22,482 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 01:38:22,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 01:38:22,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 01:38:22,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:38:22,482 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 01:38:22,482 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 01:38:22,483 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 01:38:22,483 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 01:38:22,483 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 01:38:22,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 01:38:22,483 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 01:38:22,483 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 01:38:22,483 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 01:38:22,483 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 01:38:22,483 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 -> 1f1f1c8f9ab1c230a124cee5d642a3f2063dd1bf51b20bdb3c19b17194d93f67 [2025-03-14 01:38:22,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 01:38:22,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 01:38:22,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 01:38:22,731 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 01:38:22,731 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 01:38:22,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/10-synch_01-thread_unique.i [2025-03-14 01:38:23,959 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c83f4cc2/8f9d6e26dd874e73a5276fea09f2e30f/FLAGeda20698e [2025-03-14 01:38:24,203 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 01:38:24,204 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/10-synch_01-thread_unique.i [2025-03-14 01:38:24,219 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c83f4cc2/8f9d6e26dd874e73a5276fea09f2e30f/FLAGeda20698e [2025-03-14 01:38:24,229 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c83f4cc2/8f9d6e26dd874e73a5276fea09f2e30f [2025-03-14 01:38:24,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 01:38:24,233 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 01:38:24,234 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 01:38:24,234 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 01:38:24,236 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 01:38:24,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:38:24" (1/1) ... [2025-03-14 01:38:24,239 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30490454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:38:24, skipping insertion in model container [2025-03-14 01:38:24,239 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:38:24" (1/1) ... [2025-03-14 01:38:24,271 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 01:38:24,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:38:24,592 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 01:38:24,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:38:24,666 INFO L204 MainTranslator]: Completed translation [2025-03-14 01:38:24,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:38:24 WrapperNode [2025-03-14 01:38:24,667 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 01:38:24,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 01:38:24,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 01:38:24,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 01:38:24,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:38:24" (1/1) ... [2025-03-14 01:38:24,687 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:38:24" (1/1) ... [2025-03-14 01:38:24,698 INFO L138 Inliner]: procedures = 256, calls = 3, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2025-03-14 01:38:24,699 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 01:38:24,699 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 01:38:24,700 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 01:38:24,700 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 01:38:24,703 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:38:24" (1/1) ... [2025-03-14 01:38:24,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:38:24" (1/1) ... [2025-03-14 01:38:24,705 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:38:24" (1/1) ... [2025-03-14 01:38:24,705 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:38:24" (1/1) ... [2025-03-14 01:38:24,707 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:38:24" (1/1) ... [2025-03-14 01:38:24,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:38:24" (1/1) ... [2025-03-14 01:38:24,708 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:38:24" (1/1) ... [2025-03-14 01:38:24,709 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:38:24" (1/1) ... [2025-03-14 01:38:24,710 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 01:38:24,710 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 01:38:24,710 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 01:38:24,710 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 01:38:24,711 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:38:24" (1/1) ... [2025-03-14 01:38:24,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:38:24,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:38:24,740 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) [2025-03-14 01:38:24,743 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 [2025-03-14 01:38:24,759 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-14 01:38:24,759 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-14 01:38:24,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 01:38:24,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 01:38:24,760 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 01:38:24,840 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 01:38:24,842 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 01:38:24,902 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 01:38:24,903 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 01:38:24,903 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 01:38:24,915 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 01:38:24,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:38:24 BoogieIcfgContainer [2025-03-14 01:38:24,915 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 01:38:24,917 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 01:38:24,918 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 01:38:24,922 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 01:38:24,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 01:38:24" (1/3) ... [2025-03-14 01:38:24,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ec213a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:38:24, skipping insertion in model container [2025-03-14 01:38:24,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:38:24" (2/3) ... [2025-03-14 01:38:24,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ec213a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:38:24, skipping insertion in model container [2025-03-14 01:38:24,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:38:24" (3/3) ... [2025-03-14 01:38:24,926 INFO L128 eAbstractionObserver]: Analyzing ICFG 10-synch_01-thread_unique.i [2025-03-14 01:38:24,939 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 01:38:24,940 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 10-synch_01-thread_unique.i that has 2 procedures, 28 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-14 01:38:24,941 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 01:38:24,973 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-14 01:38:25,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 27 transitions, 61 flow [2025-03-14 01:38:25,024 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2025-03-14 01:38:25,025 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:38:25,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 26 events. 0/26 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-03-14 01:38:25,029 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 27 transitions, 61 flow [2025-03-14 01:38:25,031 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 21 places, 17 transitions, 37 flow [2025-03-14 01:38:25,041 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:38:25,054 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;@2bddf8fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:38:25,054 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-03-14 01:38:25,058 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:38:25,060 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2025-03-14 01:38:25,060 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:38:25,060 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:38:25,060 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:38:25,061 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2025-03-14 01:38:25,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:38:25,067 INFO L85 PathProgramCache]: Analyzing trace with hash -2054650919, now seen corresponding path program 1 times [2025-03-14 01:38:25,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:38:25,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492786582] [2025-03-14 01:38:25,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:38:25,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:38:25,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-14 01:38:25,139 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-14 01:38:25,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:38:25,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:38:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:38:25,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:38:25,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492786582] [2025-03-14 01:38:25,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492786582] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:38:25,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:38:25,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:38:25,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342406315] [2025-03-14 01:38:25,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:38:25,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:38:25,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:38:25,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:38:25,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:38:25,227 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 27 [2025-03-14 01:38:25,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 17 transitions, 37 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2025-03-14 01:38:25,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:38:25,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 27 [2025-03-14 01:38:25,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:38:25,237 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2025-03-14 01:38:25,237 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:38:25,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 16 events. 0/16 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2025-03-14 01:38:25,238 INFO L140 encePairwiseOnDemand]: 25/27 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2025-03-14 01:38:25,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 16 transitions, 41 flow [2025-03-14 01:38:25,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:38:25,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:38:25,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2025-03-14 01:38:25,247 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7901234567901234 [2025-03-14 01:38:25,248 INFO L175 Difference]: Start difference. First operand has 21 places, 17 transitions, 37 flow. Second operand 3 states and 64 transitions. [2025-03-14 01:38:25,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 16 transitions, 41 flow [2025-03-14 01:38:25,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 16 transitions, 40 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-14 01:38:25,253 INFO L231 Difference]: Finished difference. Result has 21 places, 0 transitions, 0 flow [2025-03-14 01:38:25,254 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=21, PETRI_TRANSITIONS=0} [2025-03-14 01:38:25,260 INFO L279 CegarLoopForPetriNet]: 21 programPoint places, 0 predicate places. [2025-03-14 01:38:25,260 INFO L471 AbstractCegarLoop]: Abstraction has has 21 places, 0 transitions, 0 flow [2025-03-14 01:38:25,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2025-03-14 01:38:25,262 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2025-03-14 01:38:25,262 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 3 remaining) [2025-03-14 01:38:25,262 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 3 remaining) [2025-03-14 01:38:25,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 01:38:25,263 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-14 01:38:25,269 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-14 01:38:25,269 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-14 01:38:25,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.03 01:38:25 BasicIcfg [2025-03-14 01:38:25,275 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-14 01:38:25,276 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-14 01:38:25,276 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-14 01:38:25,276 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-14 01:38:25,277 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:38:24" (3/4) ... [2025-03-14 01:38:25,278 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-14 01:38:25,280 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-14 01:38:25,282 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-03-14 01:38:25,283 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-14 01:38:25,283 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-14 01:38:25,334 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-14 01:38:25,334 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-14 01:38:25,334 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-14 01:38:25,335 INFO L158 Benchmark]: Toolchain (without parser) took 1102.38ms. Allocated memory is still 167.8MB. Free memory was 124.1MB in the beginning and 55.7MB in the end (delta: 68.4MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-03-14 01:38:25,335 INFO L158 Benchmark]: CDTParser took 1.22ms. Allocated memory is still 201.3MB. Free memory is still 117.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:38:25,336 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.65ms. Allocated memory is still 167.8MB. Free memory was 123.4MB in the beginning and 98.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-14 01:38:25,336 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.19ms. Allocated memory is still 167.8MB. Free memory was 98.2MB in the beginning and 96.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:38:25,336 INFO L158 Benchmark]: Boogie Preprocessor took 10.35ms. Allocated memory is still 167.8MB. Free memory was 96.4MB in the beginning and 95.8MB in the end (delta: 622.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:38:25,337 INFO L158 Benchmark]: IcfgBuilder took 205.04ms. Allocated memory is still 167.8MB. Free memory was 95.2MB in the beginning and 85.1MB in the end (delta: 10.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-14 01:38:25,337 INFO L158 Benchmark]: TraceAbstraction took 358.35ms. Allocated memory is still 167.8MB. Free memory was 84.5MB in the beginning and 60.5MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-14 01:38:25,338 INFO L158 Benchmark]: Witness Printer took 58.79ms. Allocated memory is still 167.8MB. Free memory was 60.5MB in the beginning and 55.7MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 01:38:25,339 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.22ms. Allocated memory is still 201.3MB. Free memory is still 117.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 433.65ms. Allocated memory is still 167.8MB. Free memory was 123.4MB in the beginning and 98.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.19ms. Allocated memory is still 167.8MB. Free memory was 98.2MB in the beginning and 96.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 10.35ms. Allocated memory is still 167.8MB. Free memory was 96.4MB in the beginning and 95.8MB in the end (delta: 622.3kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 205.04ms. Allocated memory is still 167.8MB. Free memory was 95.2MB in the beginning and 85.1MB in the end (delta: 10.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 358.35ms. Allocated memory is still 167.8MB. Free memory was 84.5MB in the beginning and 60.5MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 58.79ms. Allocated memory is still 167.8MB. Free memory was 60.5MB in the beginning and 55.7MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 919]: 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, 39 locations, 3 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: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-14 01:38:25,354 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