./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_06-ps_rc.c --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/04-mutex_06-ps_rc.c -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 6ff62bc1009e856ebfdbcc1756ddab571d8672e93ee6d6eb2d652f5f205a6980 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:07:48,795 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:07:48,838 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:07:48,844 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:07:48,844 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:07:48,858 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:07:48,859 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:07:48,859 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:07:48,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:07:48,861 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:07:48,861 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:07:48,861 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:07:48,861 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:07:48,861 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:07:48,861 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:07:48,861 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:07:48,862 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:07:48,862 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:07:48,862 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:07:48,862 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:07:48,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:07:48,862 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:07:48,862 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:07:48,863 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:07:48,863 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:07:48,863 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:07:48,863 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:07:48,863 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:07:48,864 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:07:48,864 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:07:48,864 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:07:48,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:07:48,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:07:48,864 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:07:48,864 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:07:48,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:07:48,864 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:07:48,864 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:07:48,865 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:07:48,865 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:07:48,865 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:07:48,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:07:48,865 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:07:48,865 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:07:48,865 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:07:48,865 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 -> 6ff62bc1009e856ebfdbcc1756ddab571d8672e93ee6d6eb2d652f5f205a6980 [2025-04-29 11:07:49,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:07:49,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:07:49,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:07:49,097 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:07:49,097 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:07:49,098 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_06-ps_rc.c [2025-04-29 11:07:50,394 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4ea66be4/298050f5ff8f4fa3949d7f76074545d0/FLAG96a19f9ae [2025-04-29 11:07:50,560 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:07:50,560 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_06-ps_rc.c [2025-04-29 11:07:50,562 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:07:50,562 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:07:50,562 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:07:50,575 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4ea66be4/298050f5ff8f4fa3949d7f76074545d0/FLAG96a19f9ae [2025-04-29 11:07:51,444 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4ea66be4/298050f5ff8f4fa3949d7f76074545d0 [2025-04-29 11:07:51,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:07:51,447 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:07:51,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:07:51,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:07:51,452 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:07:51,452 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bc95c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51, skipping insertion in model container [2025-04-29 11:07:51,454 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,463 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:07:51,602 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:07:51,610 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:07:51,636 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:07:51,650 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:07:51,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51 WrapperNode [2025-04-29 11:07:51,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:07:51,652 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:07:51,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:07:51,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:07:51,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,675 INFO L138 Inliner]: procedures = 12, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2025-04-29 11:07:51,676 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:07:51,676 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:07:51,677 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:07:51,677 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:07:51,680 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,682 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,684 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,685 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,687 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,690 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:07:51,696 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:07:51,696 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:07:51,696 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:07:51,697 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:07:51,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:07:51,720 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) [2025-04-29 11:07:51,722 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 [2025-04-29 11:07:51,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:07:51,736 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-29 11:07:51,737 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-29 11:07:51,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:07:51,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:07:51,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-29 11:07:51,737 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-29 11:07:51,737 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-29 11:07:51,737 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-29 11:07:51,797 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:07:51,798 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:07:51,886 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:07:51,886 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:07:51,899 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:07:51,899 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:07:51,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:07:51 BoogieIcfgContainer [2025-04-29 11:07:51,900 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:07:51,901 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:07:51,901 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:07:51,905 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:07:51,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:07:51" (1/3) ... [2025-04-29 11:07:51,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19db2c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:07:51, skipping insertion in model container [2025-04-29 11:07:51,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (2/3) ... [2025-04-29 11:07:51,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19db2c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:07:51, skipping insertion in model container [2025-04-29 11:07:51,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:07:51" (3/3) ... [2025-04-29 11:07:51,907 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_06-ps_rc.c [2025-04-29 11:07:51,920 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:07:51,922 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_06-ps_rc.c that has 2 procedures, 66 locations, 67 edges, 1 initial locations, 0 loop locations, and 4 error locations. [2025-04-29 11:07:51,922 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:07:51,953 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-29 11:07:51,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 68 transitions, 140 flow [2025-04-29 11:07:51,997 INFO L116 PetriNetUnfolderBase]: 3/67 cut-off events. [2025-04-29 11:07:51,999 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:07:52,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 67 events. 3/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2025-04-29 11:07:52,001 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 68 transitions, 140 flow [2025-04-29 11:07:52,006 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 67 transitions, 137 flow [2025-04-29 11:07:52,013 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:07:52,023 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;@ca4a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:07:52,023 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-04-29 11:07:52,031 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:07:52,032 INFO L116 PetriNetUnfolderBase]: 0/28 cut-off events. [2025-04-29 11:07:52,032 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:07:52,032 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:52,032 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:07:52,033 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:52,036 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:52,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1883820236, now seen corresponding path program 1 times [2025-04-29 11:07:52,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:52,043 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776984018] [2025-04-29 11:07:52,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:07:52,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:52,096 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-29 11:07:52,106 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-29 11:07:52,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:07:52,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:07:52,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:07:52,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:07:52,177 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776984018] [2025-04-29 11:07:52,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776984018] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:07:52,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:07:52,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:07:52,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69798759] [2025-04-29 11:07:52,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:07:52,182 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:07:52,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:07:52,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:07:52,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:07:52,229 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 68 [2025-04-29 11:07:52,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 67 transitions, 137 flow. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) [2025-04-29 11:07:52,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:07:52,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 68 [2025-04-29 11:07:52,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:07:52,310 INFO L116 PetriNetUnfolderBase]: 41/241 cut-off events. [2025-04-29 11:07:52,311 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:07:52,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 241 events. 41/241 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1125 event pairs, 10 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 303. Up to 43 conditions per place. [2025-04-29 11:07:52,314 INFO L140 encePairwiseOnDemand]: 60/68 looper letters, 17 selfloop transitions, 6 changer transitions 0/77 dead transitions. [2025-04-29 11:07:52,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 77 transitions, 203 flow [2025-04-29 11:07:52,316 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:07:52,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:07:52,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 190 transitions. [2025-04-29 11:07:52,328 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9313725490196079 [2025-04-29 11:07:52,329 INFO L175 Difference]: Start difference. First operand has 68 places, 67 transitions, 137 flow. Second operand 3 states and 190 transitions. [2025-04-29 11:07:52,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 77 transitions, 203 flow [2025-04-29 11:07:52,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 77 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:07:52,338 INFO L231 Difference]: Finished difference. Result has 71 places, 73 transitions, 188 flow [2025-04-29 11:07:52,340 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=71, PETRI_TRANSITIONS=73} [2025-04-29 11:07:52,343 INFO L279 CegarLoopForPetriNet]: 68 programPoint places, 3 predicate places. [2025-04-29 11:07:52,344 INFO L485 AbstractCegarLoop]: Abstraction has has 71 places, 73 transitions, 188 flow [2025-04-29 11:07:52,344 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) [2025-04-29 11:07:52,344 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:52,345 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] [2025-04-29 11:07:52,345 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:07:52,345 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:52,346 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:52,346 INFO L85 PathProgramCache]: Analyzing trace with hash -734619201, now seen corresponding path program 1 times [2025-04-29 11:07:52,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:52,346 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753833196] [2025-04-29 11:07:52,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:07:52,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:52,357 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-29 11:07:52,369 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-04-29 11:07:52,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:07:52,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:07:52,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:07:52,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:07:52,403 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753833196] [2025-04-29 11:07:52,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753833196] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:07:52,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:07:52,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:07:52,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448436408] [2025-04-29 11:07:52,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:07:52,404 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:07:52,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:07:52,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:07:52,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:07:52,429 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 68 [2025-04-29 11:07:52,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 73 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2025-04-29 11:07:52,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:07:52,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 68 [2025-04-29 11:07:52,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:07:52,519 INFO L116 PetriNetUnfolderBase]: 68/306 cut-off events. [2025-04-29 11:07:52,521 INFO L117 PetriNetUnfolderBase]: For 99/107 co-relation queries the response was YES. [2025-04-29 11:07:52,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 306 events. 68/306 cut-off events. For 99/107 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1563 event pairs, 15 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 504. Up to 95 conditions per place. [2025-04-29 11:07:52,524 INFO L140 encePairwiseOnDemand]: 62/68 looper letters, 16 selfloop transitions, 7 changer transitions 2/80 dead transitions. [2025-04-29 11:07:52,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 80 transitions, 260 flow [2025-04-29 11:07:52,525 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:07:52,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:07:52,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2025-04-29 11:07:52,526 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9068627450980392 [2025-04-29 11:07:52,527 INFO L175 Difference]: Start difference. First operand has 71 places, 73 transitions, 188 flow. Second operand 3 states and 185 transitions. [2025-04-29 11:07:52,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 80 transitions, 260 flow [2025-04-29 11:07:52,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 80 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:07:52,529 INFO L231 Difference]: Finished difference. Result has 73 places, 77 transitions, 230 flow [2025-04-29 11:07:52,530 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=73, PETRI_TRANSITIONS=77} [2025-04-29 11:07:52,530 INFO L279 CegarLoopForPetriNet]: 68 programPoint places, 5 predicate places. [2025-04-29 11:07:52,530 INFO L485 AbstractCegarLoop]: Abstraction has has 73 places, 77 transitions, 230 flow [2025-04-29 11:07:52,530 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2025-04-29 11:07:52,530 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:52,531 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] [2025-04-29 11:07:52,531 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:07:52,531 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:52,531 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:52,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1421330511, now seen corresponding path program 1 times [2025-04-29 11:07:52,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:52,532 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805410973] [2025-04-29 11:07:52,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:07:52,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:52,537 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-04-29 11:07:52,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-04-29 11:07:52,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:07:52,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:07:52,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:07:52,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:07:52,570 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805410973] [2025-04-29 11:07:52,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805410973] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:07:52,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:07:52,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-29 11:07:52,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83128341] [2025-04-29 11:07:52,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:07:52,571 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:07:52,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:07:52,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:07:52,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:07:52,582 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 68 [2025-04-29 11:07:52,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 77 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2025-04-29 11:07:52,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:07:52,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 68 [2025-04-29 11:07:52,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:07:52,626 INFO L116 PetriNetUnfolderBase]: 43/298 cut-off events. [2025-04-29 11:07:52,627 INFO L117 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2025-04-29 11:07:52,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 298 events. 43/298 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1491 event pairs, 15 based on Foata normal form. 3/272 useless extension candidates. Maximal degree in co-relation 464. Up to 58 conditions per place. [2025-04-29 11:07:52,629 INFO L140 encePairwiseOnDemand]: 64/68 looper letters, 11 selfloop transitions, 2 changer transitions 3/80 dead transitions. [2025-04-29 11:07:52,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 80 transitions, 268 flow [2025-04-29 11:07:52,631 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:07:52,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:07:52,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 179 transitions. [2025-04-29 11:07:52,633 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8774509803921569 [2025-04-29 11:07:52,633 INFO L175 Difference]: Start difference. First operand has 73 places, 77 transitions, 230 flow. Second operand 3 states and 179 transitions. [2025-04-29 11:07:52,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 80 transitions, 268 flow [2025-04-29 11:07:52,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 80 transitions, 254 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:07:52,636 INFO L231 Difference]: Finished difference. Result has 74 places, 77 transitions, 226 flow [2025-04-29 11:07:52,636 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=74, PETRI_TRANSITIONS=77} [2025-04-29 11:07:52,636 INFO L279 CegarLoopForPetriNet]: 68 programPoint places, 6 predicate places. [2025-04-29 11:07:52,636 INFO L485 AbstractCegarLoop]: Abstraction has has 74 places, 77 transitions, 226 flow [2025-04-29 11:07:52,638 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2025-04-29 11:07:52,638 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:52,638 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] [2025-04-29 11:07:52,639 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:07:52,639 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:52,640 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:52,640 INFO L85 PathProgramCache]: Analyzing trace with hash 362065941, now seen corresponding path program 1 times [2025-04-29 11:07:52,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:52,640 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616110390] [2025-04-29 11:07:52,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:07:52,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:52,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-04-29 11:07:52,654 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-04-29 11:07:52,654 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:07:52,654 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:07:52,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:07:52,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:07:52,673 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616110390] [2025-04-29 11:07:52,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616110390] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:07:52,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:07:52,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:07:52,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185574309] [2025-04-29 11:07:52,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:07:52,674 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:07:52,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:07:52,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:07:52,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:07:52,691 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 68 [2025-04-29 11:07:52,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 77 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) [2025-04-29 11:07:52,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:07:52,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 68 [2025-04-29 11:07:52,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:07:52,730 INFO L116 PetriNetUnfolderBase]: 75/392 cut-off events. [2025-04-29 11:07:52,731 INFO L117 PetriNetUnfolderBase]: For 150/156 co-relation queries the response was YES. [2025-04-29 11:07:52,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 392 events. 75/392 cut-off events. For 150/156 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2151 event pairs, 17 based on Foata normal form. 3/377 useless extension candidates. Maximal degree in co-relation 713. Up to 107 conditions per place. [2025-04-29 11:07:52,732 INFO L140 encePairwiseOnDemand]: 62/68 looper letters, 16 selfloop transitions, 8 changer transitions 8/86 dead transitions. [2025-04-29 11:07:52,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 86 transitions, 321 flow [2025-04-29 11:07:52,733 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:07:52,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:07:52,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 184 transitions. [2025-04-29 11:07:52,734 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9019607843137255 [2025-04-29 11:07:52,734 INFO L175 Difference]: Start difference. First operand has 74 places, 77 transitions, 226 flow. Second operand 3 states and 184 transitions. [2025-04-29 11:07:52,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 86 transitions, 321 flow [2025-04-29 11:07:52,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 86 transitions, 316 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-04-29 11:07:52,736 INFO L231 Difference]: Finished difference. Result has 77 places, 77 transitions, 262 flow [2025-04-29 11:07:52,736 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=77, PETRI_TRANSITIONS=77} [2025-04-29 11:07:52,737 INFO L279 CegarLoopForPetriNet]: 68 programPoint places, 9 predicate places. [2025-04-29 11:07:52,737 INFO L485 AbstractCegarLoop]: Abstraction has has 77 places, 77 transitions, 262 flow [2025-04-29 11:07:52,737 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) [2025-04-29 11:07:52,737 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:52,737 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:07:52,737 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-29 11:07:52,738 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:52,738 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:52,738 INFO L85 PathProgramCache]: Analyzing trace with hash 84998927, now seen corresponding path program 1 times [2025-04-29 11:07:52,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:52,738 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986222322] [2025-04-29 11:07:52,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:07:52,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:52,744 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-04-29 11:07:52,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-04-29 11:07:52,750 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:07:52,750 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:07:52,750 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-29 11:07:52,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-04-29 11:07:52,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-04-29 11:07:52,756 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:07:52,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:07:52,777 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-29 11:07:52,777 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-29 11:07:52,778 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2025-04-29 11:07:52,780 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2025-04-29 11:07:52,780 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-04-29 11:07:52,780 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2025-04-29 11:07:52,780 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2025-04-29 11:07:52,780 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2025-04-29 11:07:52,780 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2025-04-29 11:07:52,781 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-29 11:07:52,781 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-04-29 11:07:52,829 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:07:52,830 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:07:52,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:07:52 BasicIcfg [2025-04-29 11:07:52,836 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:07:52,837 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:07:52,837 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:07:52,837 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:07:52,838 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:07:51" (3/4) ... [2025-04-29 11:07:52,838 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-04-29 11:07:52,869 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 3. [2025-04-29 11:07:52,900 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:07:52,901 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:07:52,901 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:07:52,902 INFO L158 Benchmark]: Toolchain (without parser) took 1454.78ms. Allocated memory is still 142.6MB. Free memory was 114.3MB in the beginning and 55.5MB in the end (delta: 58.8MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. [2025-04-29 11:07:52,902 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 226.5MB. Free memory is still 147.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:07:52,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.29ms. Allocated memory is still 142.6MB. Free memory was 114.3MB in the beginning and 100.4MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:07:52,903 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.86ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 99.4MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:07:52,903 INFO L158 Benchmark]: Boogie Preprocessor took 18.09ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 98.2MB in the end (delta: 578.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:07:52,904 INFO L158 Benchmark]: RCFGBuilder took 203.93ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 85.4MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:07:52,906 INFO L158 Benchmark]: TraceAbstraction took 934.90ms. Allocated memory is still 142.6MB. Free memory was 84.8MB in the beginning and 62.3MB in the end (delta: 22.5MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2025-04-29 11:07:52,906 INFO L158 Benchmark]: Witness Printer took 64.00ms. Allocated memory is still 142.6MB. Free memory was 62.3MB in the beginning and 55.5MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:07:52,907 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 226.5MB. Free memory is still 147.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.29ms. Allocated memory is still 142.6MB. Free memory was 114.3MB in the beginning and 100.4MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.86ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 99.4MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.09ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 98.2MB in the end (delta: 578.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 203.93ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 85.4MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 934.90ms. Allocated memory is still 142.6MB. Free memory was 84.8MB in the beginning and 62.3MB in the end (delta: 22.5MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. * Witness Printer took 64.00ms. Allocated memory is still 142.6MB. Free memory was 62.3MB in the beginning and 55.5MB 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: 37]: Data race detected Data race detected The following path leads to a data race: [L14] 0 int glob; VAL [glob=0] [L15] 0 pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER; VAL [glob=0, m={1:0}] [L16] 0 pthread_mutex_t n = PTHREAD_MUTEX_INITIALIZER; VAL [glob=0, m={1:0}, n={2:0}] [L26] 0 int i = __VERIFIER_nondet_int(); VAL [glob=0, i=1, m={1:0}, n={2:0}] [L27] 0 pthread_t id; VAL [glob=0, i=1, m={1:0}, n={2:0}] [L30] FCALL, FORK 0 pthread_create(&id, NULL, t_fun, NULL) VAL [\at(arg, Pre)={0:0}, glob=0, i=1, id=-1, m={1:0}, n={2:0}] [L33] COND TRUE 0 \read(i) VAL [\at(arg, Pre)={0:0}, glob=0, i=1, id=-1, m={1:0}, n={2:0}] [L20] 1 glob++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, glob=0, m={1:0}, n={2:0}] [L36] COND TRUE 0 \read(i) VAL [\at(arg, Pre)={0:0}, arg={0:0}, glob=0, i=1, id=-1, m={1:0}, n={2:0}] [L37] 0 glob++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, glob=0, i=1, id=-1, m={1:0}, n={2:0}] [L20] 1 glob++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, glob=1, m={1:0}, n={2:0}] [L37] 0 glob++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, glob=1, i=1, id=-1, m={1:0}, n={2:0}] Now there is a data race on ~glob~0 between C: glob++ [20] and C: glob++ [37] - UnprovableResult [Line: 37]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 30]: 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: 20]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 20]: 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, 86 locations, 87 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: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 91 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 22 mSDtfsCounter, 119 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=262occurred in iteration=4, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 166 NumberOfCodeBlocks, 166 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2025-04-29 11:07:52,924 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)