./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/03-practical_07-nonterm.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/03-practical_07-nonterm.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 2562086a02be6998e1a5ce9ce305a1aab13bba69cf8f1d9765d0b8ae4c7e77e3 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:25:57,745 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:25:57,794 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-30 10:25:57,801 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:25:57,802 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:25:57,817 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:25:57,818 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:25:57,818 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:25:57,818 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:25:57,818 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:25:57,818 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:25:57,819 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:25:57,819 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:25:57,819 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:25:57,819 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:25:57,819 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:25:57,819 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:25:57,819 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:25:57,819 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:25:57,819 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:25:57,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:25:57,820 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:25:57,820 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-30 10:25:57,820 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:25:57,820 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:25:57,820 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:25:57,820 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:25:57,820 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:25:57,820 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:25:57,820 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:25:57,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:25:57,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:25:57,821 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:25:57,821 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:25:57,821 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:25:57,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:25:57,821 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:25:57,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:25:57,821 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:25:57,821 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:25:57,821 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:25:57,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:25:57,822 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:25:57,822 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:25:57,822 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:25:57,822 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 -> 2562086a02be6998e1a5ce9ce305a1aab13bba69cf8f1d9765d0b8ae4c7e77e3 [2025-04-30 10:25:58,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:25:58,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:25:58,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:25:58,078 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:25:58,078 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:25:58,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/03-practical_07-nonterm.i [2025-04-30 10:25:59,384 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad3ca9aa2/cbcd5eb1df854be18d5e4cb83edd439c/FLAG03dac402f [2025-04-30 10:25:59,604 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:25:59,605 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/03-practical_07-nonterm.i [2025-04-30 10:25:59,614 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad3ca9aa2/cbcd5eb1df854be18d5e4cb83edd439c/FLAG03dac402f [2025-04-30 10:26:00,584 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad3ca9aa2/cbcd5eb1df854be18d5e4cb83edd439c [2025-04-30 10:26:00,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:26:00,587 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:26:00,588 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:26:00,588 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:26:00,591 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:26:00,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,593 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2354b363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:00, skipping insertion in model container [2025-04-30 10:26:00,593 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:26:00" (1/1) ... [2025-04-30 10:26:00,617 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:26:00,988 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:26:01,009 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:26:01,075 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:26:01,114 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:26:01,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:01 WrapperNode [2025-04-30 10:26:01,115 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:26:01,116 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:26:01,116 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:26:01,116 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:26:01,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:01" (1/1) ... [2025-04-30 10:26:01,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:01" (1/1) ... [2025-04-30 10:26:01,151 INFO L138 Inliner]: procedures = 262, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2025-04-30 10:26:01,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:26:01,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:26:01,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:26:01,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:26:01,156 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:01" (1/1) ... [2025-04-30 10:26:01,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:01" (1/1) ... [2025-04-30 10:26:01,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:01" (1/1) ... [2025-04-30 10:26:01,161 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:01" (1/1) ... [2025-04-30 10:26:01,165 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:01" (1/1) ... [2025-04-30 10:26:01,166 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:01" (1/1) ... [2025-04-30 10:26:01,168 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:01" (1/1) ... [2025-04-30 10:26:01,171 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:01" (1/1) ... [2025-04-30 10:26:01,171 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:01" (1/1) ... [2025-04-30 10:26:01,177 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:26:01,178 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:26:01,178 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:26:01,178 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:26:01,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:01" (1/1) ... [2025-04-30 10:26:01,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:26:01,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:26:01,208 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-30 10:26:01,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-30 10:26:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-30 10:26:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-30 10:26:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:26:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-30 10:26:01,229 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-30 10:26:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-30 10:26:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:26:01,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:26:01,230 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:26:01,318 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:26:01,319 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:26:01,425 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:26:01,425 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:26:01,444 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:26:01,445 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-30 10:26:01,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:26:01 BoogieIcfgContainer [2025-04-30 10:26:01,445 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:26:01,447 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:26:01,447 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:26:01,450 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:26:01,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:26:00" (1/3) ... [2025-04-30 10:26:01,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7680370b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:26:01, skipping insertion in model container [2025-04-30 10:26:01,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:01" (2/3) ... [2025-04-30 10:26:01,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7680370b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:26:01, skipping insertion in model container [2025-04-30 10:26:01,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:26:01" (3/3) ... [2025-04-30 10:26:01,451 INFO L128 eAbstractionObserver]: Analyzing ICFG 03-practical_07-nonterm.i [2025-04-30 10:26:01,462 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:26:01,464 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 03-practical_07-nonterm.i that has 2 procedures, 68 locations, 67 edges, 1 initial locations, 1 loop locations, and 5 error locations. [2025-04-30 10:26:01,464 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:26:01,504 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-30 10:26:01,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 68 transitions, 143 flow [2025-04-30 10:26:01,574 INFO L116 PetriNetUnfolderBase]: 1/67 cut-off events. [2025-04-30 10:26:01,576 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:26:01,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 67 events. 1/67 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2025-04-30 10:26:01,579 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 68 transitions, 143 flow [2025-04-30 10:26:01,582 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 61 transitions, 128 flow [2025-04-30 10:26:01,592 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:26:01,604 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;@64b76d6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:26:01,605 INFO L341 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-04-30 10:26:01,619 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:26:01,619 INFO L116 PetriNetUnfolderBase]: 0/32 cut-off events. [2025-04-30 10:26:01,619 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:26:01,619 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:01,620 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 10:26:01,620 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-04-30 10:26:01,625 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:01,626 INFO L85 PathProgramCache]: Analyzing trace with hash -683223185, now seen corresponding path program 1 times [2025-04-30 10:26:01,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:01,632 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807446186] [2025-04-30 10:26:01,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:01,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:01,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-04-30 10:26:01,729 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-04-30 10:26:01,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:01,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:01,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:01,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:01,876 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807446186] [2025-04-30 10:26:01,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807446186] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:01,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:01,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:26:01,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774326257] [2025-04-30 10:26:01,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:01,885 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:26:01,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:01,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:26:01,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:26:01,943 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 68 [2025-04-30 10:26:01,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 61 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:26:01,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:01,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 68 [2025-04-30 10:26:01,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:02,010 INFO L116 PetriNetUnfolderBase]: 37/172 cut-off events. [2025-04-30 10:26:02,012 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:26:02,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 172 events. 37/172 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 640 event pairs, 13 based on Foata normal form. 9/164 useless extension candidates. Maximal degree in co-relation 226. Up to 44 conditions per place. [2025-04-30 10:26:02,015 INFO L140 encePairwiseOnDemand]: 59/68 looper letters, 17 selfloop transitions, 6 changer transitions 0/64 dead transitions. [2025-04-30 10:26:02,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 64 transitions, 177 flow [2025-04-30 10:26:02,018 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:26:02,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:26:02,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2025-04-30 10:26:02,026 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8676470588235294 [2025-04-30 10:26:02,027 INFO L175 Difference]: Start difference. First operand has 64 places, 61 transitions, 128 flow. Second operand 3 states and 177 transitions. [2025-04-30 10:26:02,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 64 transitions, 177 flow [2025-04-30 10:26:02,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 64 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:26:02,032 INFO L231 Difference]: Finished difference. Result has 60 places, 60 transitions, 162 flow [2025-04-30 10:26:02,036 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=60, PETRI_TRANSITIONS=60} [2025-04-30 10:26:02,040 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -4 predicate places. [2025-04-30 10:26:02,040 INFO L485 AbstractCegarLoop]: Abstraction has has 60 places, 60 transitions, 162 flow [2025-04-30 10:26:02,040 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:26:02,040 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:02,040 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:26:02,041 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:26:02,041 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-04-30 10:26:02,041 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:02,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1602634766, now seen corresponding path program 1 times [2025-04-30 10:26:02,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:02,042 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94587517] [2025-04-30 10:26:02,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:02,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:02,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-04-30 10:26:02,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-30 10:26:02,077 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:02,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:02,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:02,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:02,131 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94587517] [2025-04-30 10:26:02,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94587517] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:02,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:02,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:26:02,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548729811] [2025-04-30 10:26:02,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:02,133 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:26:02,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:02,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:26:02,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:26:02,168 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 68 [2025-04-30 10:26:02,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 60 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:26:02,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:02,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 68 [2025-04-30 10:26:02,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:02,225 INFO L116 PetriNetUnfolderBase]: 53/213 cut-off events. [2025-04-30 10:26:02,226 INFO L117 PetriNetUnfolderBase]: For 89/93 co-relation queries the response was YES. [2025-04-30 10:26:02,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 213 events. 53/213 cut-off events. For 89/93 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 902 event pairs, 21 based on Foata normal form. 3/200 useless extension candidates. Maximal degree in co-relation 386. Up to 86 conditions per place. [2025-04-30 10:26:02,227 INFO L140 encePairwiseOnDemand]: 62/68 looper letters, 16 selfloop transitions, 7 changer transitions 1/67 dead transitions. [2025-04-30 10:26:02,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 67 transitions, 234 flow [2025-04-30 10:26:02,228 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:26:02,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:26:02,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2025-04-30 10:26:02,229 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8627450980392157 [2025-04-30 10:26:02,229 INFO L175 Difference]: Start difference. First operand has 60 places, 60 transitions, 162 flow. Second operand 3 states and 176 transitions. [2025-04-30 10:26:02,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 67 transitions, 234 flow [2025-04-30 10:26:02,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 67 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:26:02,231 INFO L231 Difference]: Finished difference. Result has 62 places, 65 transitions, 206 flow [2025-04-30 10:26:02,231 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=62, PETRI_TRANSITIONS=65} [2025-04-30 10:26:02,232 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -2 predicate places. [2025-04-30 10:26:02,232 INFO L485 AbstractCegarLoop]: Abstraction has has 62 places, 65 transitions, 206 flow [2025-04-30 10:26:02,232 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:26:02,232 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:02,232 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:26:02,232 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:26:02,232 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-04-30 10:26:02,233 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:02,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1157694757, now seen corresponding path program 1 times [2025-04-30 10:26:02,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:02,233 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440506471] [2025-04-30 10:26:02,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:02,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:02,246 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-04-30 10:26:02,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-04-30 10:26:02,250 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:02,250 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:02,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:02,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:02,295 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440506471] [2025-04-30 10:26:02,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440506471] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:02,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:02,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:26:02,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626882032] [2025-04-30 10:26:02,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:02,296 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:26:02,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:02,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:26:02,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:26:02,329 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 68 [2025-04-30 10:26:02,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 65 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:26:02,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:02,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 68 [2025-04-30 10:26:02,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:02,376 INFO L116 PetriNetUnfolderBase]: 69/251 cut-off events. [2025-04-30 10:26:02,376 INFO L117 PetriNetUnfolderBase]: For 175/179 co-relation queries the response was YES. [2025-04-30 10:26:02,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 251 events. 69/251 cut-off events. For 175/179 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1093 event pairs, 21 based on Foata normal form. 1/236 useless extension candidates. Maximal degree in co-relation 531. Up to 100 conditions per place. [2025-04-30 10:26:02,378 INFO L140 encePairwiseOnDemand]: 62/68 looper letters, 16 selfloop transitions, 8 changer transitions 6/72 dead transitions. [2025-04-30 10:26:02,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 72 transitions, 290 flow [2025-04-30 10:26:02,378 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:26:02,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:26:02,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 171 transitions. [2025-04-30 10:26:02,380 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8382352941176471 [2025-04-30 10:26:02,380 INFO L175 Difference]: Start difference. First operand has 62 places, 65 transitions, 206 flow. Second operand 3 states and 171 transitions. [2025-04-30 10:26:02,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 72 transitions, 290 flow [2025-04-30 10:26:02,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 72 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:26:02,383 INFO L231 Difference]: Finished difference. Result has 64 places, 65 transitions, 230 flow [2025-04-30 10:26:02,384 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=64, PETRI_TRANSITIONS=65} [2025-04-30 10:26:02,384 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 0 predicate places. [2025-04-30 10:26:02,385 INFO L485 AbstractCegarLoop]: Abstraction has has 64 places, 65 transitions, 230 flow [2025-04-30 10:26:02,385 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:26:02,385 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:02,385 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:26:02,385 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:26:02,385 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2025-04-30 10:26:02,386 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:02,386 INFO L85 PathProgramCache]: Analyzing trace with hash -833896231, now seen corresponding path program 1 times [2025-04-30 10:26:02,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:02,386 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275898518] [2025-04-30 10:26:02,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:02,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:02,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-04-30 10:26:02,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-04-30 10:26:02,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:02,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:26:02,411 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-30 10:26:02,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-04-30 10:26:02,418 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-04-30 10:26:02,419 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:02,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:26:02,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-30 10:26:02,432 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-30 10:26:02,433 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2025-04-30 10:26:02,434 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2025-04-30 10:26:02,434 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2025-04-30 10:26:02,434 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2025-04-30 10:26:02,434 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2025-04-30 10:26:02,434 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2025-04-30 10:26:02,434 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2025-04-30 10:26:02,434 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2025-04-30 10:26:02,435 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-30 10:26:02,435 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-04-30 10:26:02,465 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:26:02,465 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:26:02,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:26:02 BasicIcfg [2025-04-30 10:26:02,469 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:26:02,469 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:26:02,469 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:26:02,469 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:26:02,470 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:26:01" (3/4) ... [2025-04-30 10:26:02,470 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-04-30 10:26:02,502 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 1. [2025-04-30 10:26:02,525 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:26:02,525 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:26:02,525 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:26:02,525 INFO L158 Benchmark]: Toolchain (without parser) took 1938.59ms. Allocated memory is still 142.6MB. Free memory was 112.0MB in the beginning and 51.8MB in the end (delta: 60.2MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. [2025-04-30 10:26:02,525 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 201.3MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:26:02,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 527.91ms. Allocated memory is still 142.6MB. Free memory was 112.0MB in the beginning and 81.8MB in the end (delta: 30.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-30 10:26:02,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.15ms. Allocated memory is still 142.6MB. Free memory was 81.8MB in the beginning and 79.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:26:02,526 INFO L158 Benchmark]: Boogie Preprocessor took 25.61ms. Allocated memory is still 142.6MB. Free memory was 79.8MB in the beginning and 77.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:26:02,526 INFO L158 Benchmark]: RCFGBuilder took 267.56ms. Allocated memory is still 142.6MB. Free memory was 77.8MB in the beginning and 64.0MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:26:02,526 INFO L158 Benchmark]: TraceAbstraction took 1021.83ms. Allocated memory is still 142.6MB. Free memory was 64.0MB in the beginning and 58.7MB in the end (delta: 5.3MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2025-04-30 10:26:02,527 INFO L158 Benchmark]: Witness Printer took 55.81ms. Allocated memory is still 142.6MB. Free memory was 58.7MB in the beginning and 51.8MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:26:02,528 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 201.3MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 527.91ms. Allocated memory is still 142.6MB. Free memory was 112.0MB in the beginning and 81.8MB in the end (delta: 30.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.15ms. Allocated memory is still 142.6MB. Free memory was 81.8MB in the beginning and 79.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.61ms. Allocated memory is still 142.6MB. Free memory was 79.8MB in the beginning and 77.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 267.56ms. Allocated memory is still 142.6MB. Free memory was 77.8MB in the beginning and 64.0MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1021.83ms. Allocated memory is still 142.6MB. Free memory was 64.0MB in the beginning and 58.7MB in the end (delta: 5.3MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * Witness Printer took 55.81ms. Allocated memory is still 142.6MB. Free memory was 58.7MB in the beginning and 51.8MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 931]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, myglobal=0] [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L928] 0 pthread_t id; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L929] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\at(arg, Pre)={0:0}, id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L922] EXPR 1 myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L931] 0 myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L922] 1 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L931] 0 myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, id=-1, mutex1={1:0}, mutex2={2:0}, myglobal=1] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [922] and C: myglobal+1 [931] - UnprovableResult [Line: 931]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 934]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 929]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 88 edges, 8 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: 0.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 112 IncrementalHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 35 mSDtfsCounter, 112 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230occurred in iteration=3, 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, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 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 RESULT: Ultimate proved your program to be incorrect! [2025-04-30 10:26:02,539 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)