./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_11-traces-max-simple_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_11-traces-max-simple_true.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 6ec45a8cc5eb531168b9afc45cc8af1360572640b5394bd745e0b1188f31bc79 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:29:01,042 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:29:01,090 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-30 10:29:01,095 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:29:01,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:29:01,117 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:29:01,119 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:29:01,119 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:29:01,119 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:29:01,120 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:29:01,120 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:29:01,120 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:29:01,120 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:29:01,120 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:29:01,120 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:29:01,120 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:29:01,120 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:29:01,120 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:29:01,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:29:01,121 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:29:01,121 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:29:01,121 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:29:01,121 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-30 10:29:01,121 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:29:01,121 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:29:01,121 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:29:01,121 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:29:01,121 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:29:01,121 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:29:01,121 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:29:01,121 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:29:01,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:29:01,122 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:29:01,122 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:29:01,122 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:29:01,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:29:01,122 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:29:01,123 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:29:01,123 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:29:01,123 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:29:01,123 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:29:01,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:29:01,123 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:29:01,123 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:29:01,123 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:29:01,123 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 -> 6ec45a8cc5eb531168b9afc45cc8af1360572640b5394bd745e0b1188f31bc79 [2025-04-30 10:29:01,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:29:01,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:29:01,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:29:01,348 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:29:01,349 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:29:01,351 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_11-traces-max-simple_true.i [2025-04-30 10:29:02,706 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5450b0db/5e67aa3fa0d345708f6b0ea196440839/FLAGce34e4b7f [2025-04-30 10:29:02,952 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:29:02,952 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_11-traces-max-simple_true.i [2025-04-30 10:29:02,961 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5450b0db/5e67aa3fa0d345708f6b0ea196440839/FLAGce34e4b7f [2025-04-30 10:29:03,757 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5450b0db/5e67aa3fa0d345708f6b0ea196440839 [2025-04-30 10:29:03,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:29:03,760 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:29:03,762 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:29:03,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:29:03,765 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:29:03,766 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:29:03" (1/1) ... [2025-04-30 10:29:03,767 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e27748a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:03, skipping insertion in model container [2025-04-30 10:29:03,767 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:29:03" (1/1) ... [2025-04-30 10:29:03,786 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:29:04,045 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:29:04,057 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:29:04,114 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:29:04,143 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:29:04,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:04 WrapperNode [2025-04-30 10:29:04,144 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:29:04,145 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:29:04,145 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:29:04,145 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:29:04,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:04" (1/1) ... [2025-04-30 10:29:04,163 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:04" (1/1) ... [2025-04-30 10:29:04,180 INFO L138 Inliner]: procedures = 162, calls = 20, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 71 [2025-04-30 10:29:04,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:29:04,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:29:04,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:29:04,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:29:04,185 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:04" (1/1) ... [2025-04-30 10:29:04,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:04" (1/1) ... [2025-04-30 10:29:04,188 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:04" (1/1) ... [2025-04-30 10:29:04,188 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:04" (1/1) ... [2025-04-30 10:29:04,191 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:04" (1/1) ... [2025-04-30 10:29:04,191 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:04" (1/1) ... [2025-04-30 10:29:04,193 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:04" (1/1) ... [2025-04-30 10:29:04,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:04" (1/1) ... [2025-04-30 10:29:04,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:04" (1/1) ... [2025-04-30 10:29:04,196 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:29:04,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:29:04,197 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:29:04,197 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:29:04,198 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:04" (1/1) ... [2025-04-30 10:29:04,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:29:04,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:29:04,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-30 10:29:04,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-30 10:29:04,244 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-30 10:29:04,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:29:04,244 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-30 10:29:04,245 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-30 10:29:04,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-30 10:29:04,245 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-30 10:29:04,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:29:04,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:29:04,245 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:29:04,337 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:29:04,338 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:29:04,444 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:29:04,445 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:29:04,467 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:29:04,468 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:29:04,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:29:04 BoogieIcfgContainer [2025-04-30 10:29:04,468 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:29:04,470 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:29:04,470 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:29:04,473 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:29:04,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:29:03" (1/3) ... [2025-04-30 10:29:04,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25af9f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:29:04, skipping insertion in model container [2025-04-30 10:29:04,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:04" (2/3) ... [2025-04-30 10:29:04,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25af9f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:29:04, skipping insertion in model container [2025-04-30 10:29:04,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:29:04" (3/3) ... [2025-04-30 10:29:04,475 INFO L128 eAbstractionObserver]: Analyzing ICFG 36-apron_11-traces-max-simple_true.i [2025-04-30 10:29:04,484 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:29:04,485 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 36-apron_11-traces-max-simple_true.i that has 2 procedures, 81 locations, 83 edges, 1 initial locations, 0 loop locations, and 4 error locations. [2025-04-30 10:29:04,485 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:29:04,526 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-30 10:29:04,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 84 transitions, 172 flow [2025-04-30 10:29:04,580 INFO L116 PetriNetUnfolderBase]: 4/83 cut-off events. [2025-04-30 10:29:04,582 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:29:04,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 83 events. 4/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 112 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2025-04-30 10:29:04,584 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 84 transitions, 172 flow [2025-04-30 10:29:04,587 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 83 transitions, 169 flow [2025-04-30 10:29:04,597 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:29:04,605 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1bde2a8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:29:04,605 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-04-30 10:29:04,614 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:29:04,614 INFO L116 PetriNetUnfolderBase]: 0/34 cut-off events. [2025-04-30 10:29:04,614 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:29:04,614 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:04,615 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] [2025-04-30 10:29:04,615 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:29:04,618 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:04,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1192681256, now seen corresponding path program 1 times [2025-04-30 10:29:04,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:04,623 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113218089] [2025-04-30 10:29:04,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:04,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:04,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-04-30 10:29:04,693 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-04-30 10:29:04,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:04,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:04,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:04,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:04,794 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113218089] [2025-04-30 10:29:04,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113218089] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:04,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:04,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:29:04,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696604308] [2025-04-30 10:29:04,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:04,802 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:29:04,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:04,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:29:04,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:29:04,853 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 84 [2025-04-30 10:29:04,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 83 transitions, 169 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:04,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:04,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 84 [2025-04-30 10:29:04,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:04,971 INFO L116 PetriNetUnfolderBase]: 34/314 cut-off events. [2025-04-30 10:29:04,972 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:29:04,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 408 conditions, 314 events. 34/314 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1618 event pairs, 14 based on Foata normal form. 30/318 useless extension candidates. Maximal degree in co-relation 379. Up to 73 conditions per place. [2025-04-30 10:29:04,975 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 14 selfloop transitions, 6 changer transitions 3/83 dead transitions. [2025-04-30 10:29:04,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 83 transitions, 215 flow [2025-04-30 10:29:04,976 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:29:04,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:29:04,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 221 transitions. [2025-04-30 10:29:04,988 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.876984126984127 [2025-04-30 10:29:04,990 INFO L175 Difference]: Start difference. First operand has 83 places, 83 transitions, 169 flow. Second operand 3 states and 221 transitions. [2025-04-30 10:29:04,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 83 transitions, 215 flow [2025-04-30 10:29:04,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 83 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:29:04,997 INFO L231 Difference]: Finished difference. Result has 81 places, 78 transitions, 194 flow [2025-04-30 10:29:05,000 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=81, PETRI_TRANSITIONS=78} [2025-04-30 10:29:05,003 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, -2 predicate places. [2025-04-30 10:29:05,004 INFO L485 AbstractCegarLoop]: Abstraction has has 81 places, 78 transitions, 194 flow [2025-04-30 10:29:05,004 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:05,005 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:05,005 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] [2025-04-30 10:29:05,005 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:29:05,005 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:29:05,006 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:05,006 INFO L85 PathProgramCache]: Analyzing trace with hash 192630011, now seen corresponding path program 1 times [2025-04-30 10:29:05,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:05,006 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926456414] [2025-04-30 10:29:05,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:05,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:05,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-30 10:29:05,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-04-30 10:29:05,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:05,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:05,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:05,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:05,077 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926456414] [2025-04-30 10:29:05,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926456414] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:05,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:05,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:29:05,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916059200] [2025-04-30 10:29:05,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:05,078 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:29:05,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:05,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:29:05,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:29:05,107 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 84 [2025-04-30 10:29:05,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:05,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:05,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 84 [2025-04-30 10:29:05,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:05,173 INFO L116 PetriNetUnfolderBase]: 41/334 cut-off events. [2025-04-30 10:29:05,173 INFO L117 PetriNetUnfolderBase]: For 49/51 co-relation queries the response was YES. [2025-04-30 10:29:05,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 334 events. 41/334 cut-off events. For 49/51 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1807 event pairs, 20 based on Foata normal form. 0/305 useless extension candidates. Maximal degree in co-relation 495. Up to 83 conditions per place. [2025-04-30 10:29:05,174 INFO L140 encePairwiseOnDemand]: 78/84 looper letters, 12 selfloop transitions, 6 changer transitions 5/85 dead transitions. [2025-04-30 10:29:05,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 85 transitions, 262 flow [2025-04-30 10:29:05,175 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:29:05,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:29:05,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2025-04-30 10:29:05,176 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8531746031746031 [2025-04-30 10:29:05,176 INFO L175 Difference]: Start difference. First operand has 81 places, 78 transitions, 194 flow. Second operand 3 states and 215 transitions. [2025-04-30 10:29:05,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 85 transitions, 262 flow [2025-04-30 10:29:05,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 85 transitions, 246 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:29:05,178 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 218 flow [2025-04-30 10:29:05,178 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=83, PETRI_TRANSITIONS=79} [2025-04-30 10:29:05,179 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 0 predicate places. [2025-04-30 10:29:05,179 INFO L485 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 218 flow [2025-04-30 10:29:05,179 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:05,179 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:05,179 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] [2025-04-30 10:29:05,180 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:29:05,180 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-30 10:29:05,180 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:05,180 INFO L85 PathProgramCache]: Analyzing trace with hash -290100171, now seen corresponding path program 1 times [2025-04-30 10:29:05,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:05,181 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592611038] [2025-04-30 10:29:05,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:05,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:05,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-04-30 10:29:05,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-04-30 10:29:05,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:05,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:05,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:05,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:05,315 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592611038] [2025-04-30 10:29:05,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592611038] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:05,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:05,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:29:05,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908524956] [2025-04-30 10:29:05,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:05,316 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:29:05,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:05,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:29:05,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:29:05,330 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 84 [2025-04-30 10:29:05,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 79 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:05,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:05,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 84 [2025-04-30 10:29:05,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:05,348 INFO L116 PetriNetUnfolderBase]: 0/95 cut-off events. [2025-04-30 10:29:05,348 INFO L117 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-04-30 10:29:05,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 95 events. 0/95 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 100 event pairs, 0 based on Foata normal form. 2/94 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2025-04-30 10:29:05,348 INFO L140 encePairwiseOnDemand]: 80/84 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2025-04-30 10:29:05,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 72 transitions, 190 flow [2025-04-30 10:29:05,349 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:29:05,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:29:05,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2025-04-30 10:29:05,350 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2025-04-30 10:29:05,350 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 218 flow. Second operand 3 states and 224 transitions. [2025-04-30 10:29:05,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 72 transitions, 190 flow [2025-04-30 10:29:05,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 72 transitions, 166 flow, removed 6 selfloop flow, removed 4 redundant places. [2025-04-30 10:29:05,352 INFO L231 Difference]: Finished difference. Result has 78 places, 0 transitions, 0 flow [2025-04-30 10:29:05,352 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=78, PETRI_TRANSITIONS=0} [2025-04-30 10:29:05,355 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, -5 predicate places. [2025-04-30 10:29:05,356 INFO L485 AbstractCegarLoop]: Abstraction has has 78 places, 0 transitions, 0 flow [2025-04-30 10:29:05,356 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:29:05,358 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2025-04-30 10:29:05,358 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2025-04-30 10:29:05,358 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-04-30 10:29:05,358 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2025-04-30 10:29:05,358 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2025-04-30 10:29:05,358 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2025-04-30 10:29:05,359 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2025-04-30 10:29:05,359 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:29:05,359 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-30 10:29:05,364 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:29:05,364 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:29:05,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:29:05 BasicIcfg [2025-04-30 10:29:05,370 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:29:05,371 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:29:05,371 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:29:05,371 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:29:05,372 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:29:04" (3/4) ... [2025-04-30 10:29:05,373 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-30 10:29:05,375 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-30 10:29:05,377 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-04-30 10:29:05,377 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-30 10:29:05,378 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-30 10:29:05,378 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-04-30 10:29:05,427 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:29:05,428 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:29:05,428 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:29:05,428 INFO L158 Benchmark]: Toolchain (without parser) took 1667.86ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 55.5MB in the end (delta: 50.1MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2025-04-30 10:29:05,428 INFO L158 Benchmark]: CDTParser took 0.87ms. Allocated memory is still 201.3MB. Free memory is still 115.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:05,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.83ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 83.0MB in the end (delta: 22.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-30 10:29:05,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.34ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 81.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:05,434 INFO L158 Benchmark]: Boogie Preprocessor took 15.85ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 80.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:05,434 INFO L158 Benchmark]: RCFGBuilder took 271.33ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 66.2MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:29:05,434 INFO L158 Benchmark]: TraceAbstraction took 900.56ms. Allocated memory is still 142.6MB. Free memory was 65.2MB in the beginning and 60.4MB in the end (delta: 4.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2025-04-30 10:29:05,434 INFO L158 Benchmark]: Witness Printer took 57.01ms. Allocated memory is still 142.6MB. Free memory was 60.4MB in the beginning and 55.5MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:05,435 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87ms. Allocated memory is still 201.3MB. Free memory is still 115.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 382.83ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 83.0MB in the end (delta: 22.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.34ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 81.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.85ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 80.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 271.33ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 66.2MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 900.56ms. Allocated memory is still 142.6MB. Free memory was 65.2MB in the beginning and 60.4MB in the end (delta: 4.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Witness Printer took 57.01ms. Allocated memory is still 142.6MB. Free memory was 60.4MB in the beginning and 55.5MB 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: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 685]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 686]: 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, 110 locations, 114 edges, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 78 IncrementalHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 29 mSDtfsCounter, 78 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=2, InterpolantAutomatonStates: 9, 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, 0.2s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-30 10:29:05,447 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