./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_06-ps_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_06-ps_rc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 c11b7127fb2beec6d5e726c9468c73fdf6ccc05ef40eceb17d287e75d34e535a --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:21:47,996 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:21:48,030 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:21:48,033 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:21:48,034 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:21:48,048 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:21:48,049 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:21:48,049 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:21:48,049 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:21:48,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:21:48,050 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:21:48,050 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:21:48,050 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:21:48,050 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:21:48,050 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:21:48,050 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:21:48,050 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:21:48,050 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:21:48,051 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:21:48,051 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:21:48,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:21:48,051 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:21:48,051 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:21:48,051 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:21:48,051 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:21:48,051 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:21:48,051 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:21:48,051 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:21:48,051 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:21:48,052 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:21:48,052 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:21:48,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:21:48,052 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:21:48,052 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:21:48,052 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:21:48,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:21:48,052 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:21:48,052 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:21:48,052 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:21:48,052 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:21:48,053 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:21:48,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:21:48,053 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:21:48,053 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:21:48,053 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:21:48,053 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:21:48,053 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-jdk21/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 -> c11b7127fb2beec6d5e726c9468c73fdf6ccc05ef40eceb17d287e75d34e535a [2025-01-09 21:21:48,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:21:48,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:21:48,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:21:48,228 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:21:48,228 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:21:48,229 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_06-ps_rc.i [2025-01-09 21:21:49,417 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8c52bbb0d/cb871fd25aeb452cb69a95938b3a69a3/FLAG2a69046eb [2025-01-09 21:21:49,797 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:21:49,797 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_06-ps_rc.i [2025-01-09 21:21:49,812 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8c52bbb0d/cb871fd25aeb452cb69a95938b3a69a3/FLAG2a69046eb [2025-01-09 21:21:49,839 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8c52bbb0d/cb871fd25aeb452cb69a95938b3a69a3 [2025-01-09 21:21:49,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:21:49,842 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:21:49,842 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:21:49,842 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:21:49,849 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:21:49,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:21:49" (1/1) ... [2025-01-09 21:21:49,850 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58c17987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:49, skipping insertion in model container [2025-01-09 21:21:49,850 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:21:49" (1/1) ... [2025-01-09 21:21:49,883 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:21:50,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:21:50,216 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:21:50,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:21:50,300 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:21:50,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:50 WrapperNode [2025-01-09 21:21:50,301 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:21:50,302 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:21:50,302 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:21:50,302 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:21:50,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:50" (1/1) ... [2025-01-09 21:21:50,314 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:50" (1/1) ... [2025-01-09 21:21:50,327 INFO L138 Inliner]: procedures = 266, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2025-01-09 21:21:50,327 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:21:50,328 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:21:50,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:21:50,329 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:21:50,337 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:50" (1/1) ... [2025-01-09 21:21:50,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:50" (1/1) ... [2025-01-09 21:21:50,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:50" (1/1) ... [2025-01-09 21:21:50,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:50" (1/1) ... [2025-01-09 21:21:50,347 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:50" (1/1) ... [2025-01-09 21:21:50,350 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:50" (1/1) ... [2025-01-09 21:21:50,351 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:50" (1/1) ... [2025-01-09 21:21:50,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:50" (1/1) ... [2025-01-09 21:21:50,352 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:50" (1/1) ... [2025-01-09 21:21:50,353 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:21:50,354 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:21:50,354 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:21:50,354 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:21:50,355 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:50" (1/1) ... [2025-01-09 21:21:50,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:21:50,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:21:50,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 21:21:50,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 21:21:50,398 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-09 21:21:50,398 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-09 21:21:50,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:21:50,399 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-09 21:21:50,399 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-09 21:21:50,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:21:50,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:21:50,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:21:50,400 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 21:21:50,474 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:21:50,475 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:21:50,565 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:21:50,565 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:21:50,578 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:21:50,578 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 21:21:50,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:21:50 BoogieIcfgContainer [2025-01-09 21:21:50,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:21:50,580 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:21:50,580 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:21:50,583 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:21:50,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:21:49" (1/3) ... [2025-01-09 21:21:50,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5b3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:21:50, skipping insertion in model container [2025-01-09 21:21:50,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:50" (2/3) ... [2025-01-09 21:21:50,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a5b3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:21:50, skipping insertion in model container [2025-01-09 21:21:50,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:21:50" (3/3) ... [2025-01-09 21:21:50,585 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_06-ps_rc.i [2025-01-09 21:21:50,594 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:21:50,595 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_06-ps_rc.i that has 2 procedures, 74 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-01-09 21:21:50,596 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:21:50,624 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:21:50,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 76 transitions, 156 flow [2025-01-09 21:21:50,669 INFO L124 PetriNetUnfolderBase]: 3/75 cut-off events. [2025-01-09 21:21:50,670 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:21:50,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2025-01-09 21:21:50,673 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 76 transitions, 156 flow [2025-01-09 21:21:50,675 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 75 transitions, 153 flow [2025-01-09 21:21:50,680 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:21:50,689 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2e6a3338, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:21:50,689 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-01-09 21:21:50,699 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:21:50,699 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2025-01-09 21:21:50,699 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:21:50,699 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:21:50,700 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] [2025-01-09 21:21:50,700 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:21:50,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:21:50,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1104133764, now seen corresponding path program 1 times [2025-01-09 21:21:50,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:21:50,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553460687] [2025-01-09 21:21:50,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:21:50,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:21:50,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-01-09 21:21:50,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-01-09 21:21:50,812 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:50,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:21:50,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:21:50,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:21:50,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553460687] [2025-01-09 21:21:50,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553460687] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:21:50,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:21:50,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:21:50,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887786338] [2025-01-09 21:21:50,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:21:50,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:21:50,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:21:50,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:21:50,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:21:50,997 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 76 [2025-01-09 21:21:51,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 75 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:21:51,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:21:51,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 76 [2025-01-09 21:21:51,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:21:51,086 INFO L124 PetriNetUnfolderBase]: 41/249 cut-off events. [2025-01-09 21:21:51,087 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:21:51,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 249 events. 41/249 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1107 event pairs, 10 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 303. Up to 43 conditions per place. [2025-01-09 21:21:51,090 INFO L140 encePairwiseOnDemand]: 68/76 looper letters, 17 selfloop transitions, 6 changer transitions 0/85 dead transitions. [2025-01-09 21:21:51,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 85 transitions, 219 flow [2025-01-09 21:21:51,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:21:51,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:21:51,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2025-01-09 21:21:51,103 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9385964912280702 [2025-01-09 21:21:51,105 INFO L175 Difference]: Start difference. First operand has 76 places, 75 transitions, 153 flow. Second operand 3 states and 214 transitions. [2025-01-09 21:21:51,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 85 transitions, 219 flow [2025-01-09 21:21:51,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 85 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:21:51,111 INFO L231 Difference]: Finished difference. Result has 79 places, 81 transitions, 204 flow [2025-01-09 21:21:51,113 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=79, PETRI_TRANSITIONS=81} [2025-01-09 21:21:51,115 INFO L279 CegarLoopForPetriNet]: 76 programPoint places, 3 predicate places. [2025-01-09 21:21:51,115 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 81 transitions, 204 flow [2025-01-09 21:21:51,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:21:51,116 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:21:51,116 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] [2025-01-09 21:21:51,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:21:51,117 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:21:51,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:21:51,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1377797353, now seen corresponding path program 1 times [2025-01-09 21:21:51,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:21:51,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077683538] [2025-01-09 21:21:51,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:21:51,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:21:51,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-01-09 21:21:51,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-01-09 21:21:51,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:51,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:21:51,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:21:51,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:21:51,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077683538] [2025-01-09 21:21:51,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077683538] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:21:51,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:21:51,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:21:51,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373357708] [2025-01-09 21:21:51,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:21:51,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:21:51,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:21:51,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:21:51,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:21:51,209 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 76 [2025-01-09 21:21:51,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 81 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2025-01-09 21:21:51,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:21:51,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 76 [2025-01-09 21:21:51,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:21:51,278 INFO L124 PetriNetUnfolderBase]: 62/301 cut-off events. [2025-01-09 21:21:51,279 INFO L125 PetriNetUnfolderBase]: For 99/109 co-relation queries the response was YES. [2025-01-09 21:21:51,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 301 events. 62/301 cut-off events. For 99/109 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1498 event pairs, 16 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 487. Up to 93 conditions per place. [2025-01-09 21:21:51,281 INFO L140 encePairwiseOnDemand]: 70/76 looper letters, 16 selfloop transitions, 7 changer transitions 2/88 dead transitions. [2025-01-09 21:21:51,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 88 transitions, 276 flow [2025-01-09 21:21:51,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:21:51,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:21:51,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2025-01-09 21:21:51,284 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2025-01-09 21:21:51,284 INFO L175 Difference]: Start difference. First operand has 79 places, 81 transitions, 204 flow. Second operand 3 states and 209 transitions. [2025-01-09 21:21:51,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 88 transitions, 276 flow [2025-01-09 21:21:51,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 88 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:21:51,287 INFO L231 Difference]: Finished difference. Result has 81 places, 85 transitions, 246 flow [2025-01-09 21:21:51,288 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=81, PETRI_TRANSITIONS=85} [2025-01-09 21:21:51,288 INFO L279 CegarLoopForPetriNet]: 76 programPoint places, 5 predicate places. [2025-01-09 21:21:51,289 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 85 transitions, 246 flow [2025-01-09 21:21:51,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2025-01-09 21:21:51,289 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:21:51,289 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:21:51,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:21:51,289 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:21:51,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:21:51,290 INFO L85 PathProgramCache]: Analyzing trace with hash 789618290, now seen corresponding path program 1 times [2025-01-09 21:21:51,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:21:51,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625208736] [2025-01-09 21:21:51,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:21:51,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:21:51,306 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-01-09 21:21:51,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-01-09 21:21:51,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:51,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:21:51,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:21:51,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:21:51,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625208736] [2025-01-09 21:21:51,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625208736] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:21:51,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:21:51,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:21:51,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482953144] [2025-01-09 21:21:51,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:21:51,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:21:51,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:21:51,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:21:51,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:21:51,372 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 76 [2025-01-09 21:21:51,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 85 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2025-01-09 21:21:51,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:21:51,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 76 [2025-01-09 21:21:51,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:21:51,424 INFO L124 PetriNetUnfolderBase]: 43/304 cut-off events. [2025-01-09 21:21:51,425 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2025-01-09 21:21:51,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 304 events. 43/304 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1470 event pairs, 16 based on Foata normal form. 3/278 useless extension candidates. Maximal degree in co-relation 462. Up to 58 conditions per place. [2025-01-09 21:21:51,426 INFO L140 encePairwiseOnDemand]: 72/76 looper letters, 11 selfloop transitions, 2 changer transitions 3/88 dead transitions. [2025-01-09 21:21:51,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 88 transitions, 284 flow [2025-01-09 21:21:51,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:21:51,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:21:51,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 203 transitions. [2025-01-09 21:21:51,430 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8903508771929824 [2025-01-09 21:21:51,430 INFO L175 Difference]: Start difference. First operand has 81 places, 85 transitions, 246 flow. Second operand 3 states and 203 transitions. [2025-01-09 21:21:51,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 88 transitions, 284 flow [2025-01-09 21:21:51,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 88 transitions, 270 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:21:51,432 INFO L231 Difference]: Finished difference. Result has 82 places, 85 transitions, 242 flow [2025-01-09 21:21:51,432 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=82, PETRI_TRANSITIONS=85} [2025-01-09 21:21:51,434 INFO L279 CegarLoopForPetriNet]: 76 programPoint places, 6 predicate places. [2025-01-09 21:21:51,434 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 85 transitions, 242 flow [2025-01-09 21:21:51,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2025-01-09 21:21:51,435 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:21:51,435 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:21:51,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:21:51,435 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:21:51,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:21:51,436 INFO L85 PathProgramCache]: Analyzing trace with hash 750473104, now seen corresponding path program 1 times [2025-01-09 21:21:51,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:21:51,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881911690] [2025-01-09 21:21:51,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:21:51,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:21:51,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-01-09 21:21:51,461 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-01-09 21:21:51,461 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:51,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:21:51,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:21:51,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:21:51,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881911690] [2025-01-09 21:21:51,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881911690] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:21:51,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:21:51,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:21:51,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977577074] [2025-01-09 21:21:51,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:21:51,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:21:51,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:21:51,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:21:51,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:21:51,509 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 76 [2025-01-09 21:21:51,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 85 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:21:51,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:21:51,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 76 [2025-01-09 21:21:51,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:21:51,572 INFO L124 PetriNetUnfolderBase]: 75/400 cut-off events. [2025-01-09 21:21:51,574 INFO L125 PetriNetUnfolderBase]: For 151/157 co-relation queries the response was YES. [2025-01-09 21:21:51,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 751 conditions, 400 events. 75/400 cut-off events. For 151/157 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2164 event pairs, 17 based on Foata normal form. 3/385 useless extension candidates. Maximal degree in co-relation 713. Up to 107 conditions per place. [2025-01-09 21:21:51,577 INFO L140 encePairwiseOnDemand]: 70/76 looper letters, 16 selfloop transitions, 8 changer transitions 8/94 dead transitions. [2025-01-09 21:21:51,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 94 transitions, 337 flow [2025-01-09 21:21:51,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:21:51,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:21:51,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2025-01-09 21:21:51,580 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9122807017543859 [2025-01-09 21:21:51,580 INFO L175 Difference]: Start difference. First operand has 82 places, 85 transitions, 242 flow. Second operand 3 states and 208 transitions. [2025-01-09 21:21:51,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 94 transitions, 337 flow [2025-01-09 21:21:51,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 94 transitions, 332 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-01-09 21:21:51,582 INFO L231 Difference]: Finished difference. Result has 85 places, 85 transitions, 278 flow [2025-01-09 21:21:51,584 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=85, PETRI_TRANSITIONS=85} [2025-01-09 21:21:51,584 INFO L279 CegarLoopForPetriNet]: 76 programPoint places, 9 predicate places. [2025-01-09 21:21:51,584 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 85 transitions, 278 flow [2025-01-09 21:21:51,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:21:51,584 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:21:51,584 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:21:51,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 21:21:51,585 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:21:51,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:21:51,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1229102753, now seen corresponding path program 1 times [2025-01-09 21:21:51,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:21:51,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702355791] [2025-01-09 21:21:51,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:21:51,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:21:51,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-09 21:21:51,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-09 21:21:51,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:51,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:21:51,608 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:21:51,614 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-09 21:21:51,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-09 21:21:51,618 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:51,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:21:51,633 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:21:51,633 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:21:51,633 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2025-01-09 21:21:51,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2025-01-09 21:21:51,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-01-09 21:21:51,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2025-01-09 21:21:51,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2025-01-09 21:21:51,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2025-01-09 21:21:51,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2025-01-09 21:21:51,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 21:21:51,636 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-01-09 21:21:51,660 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-09 21:21:51,660 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 21:21:51,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 09:21:51 BasicIcfg [2025-01-09 21:21:51,667 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 21:21:51,668 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 21:21:51,668 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 21:21:51,669 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 21:21:51,669 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:21:50" (3/4) ... [2025-01-09 21:21:51,670 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-01-09 21:21:51,704 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 3. [2025-01-09 21:21:51,737 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 21:21:51,737 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 21:21:51,737 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 21:21:51,738 INFO L158 Benchmark]: Toolchain (without parser) took 1896.29ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 86.5MB in the end (delta: 17.5MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2025-01-09 21:21:51,738 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:21:51,738 INFO L158 Benchmark]: CACSL2BoogieTranslator took 459.23ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 75.9MB in the end (delta: 27.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 21:21:51,738 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.59ms. Allocated memory is still 142.6MB. Free memory was 75.9MB in the beginning and 74.4MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:21:51,738 INFO L158 Benchmark]: Boogie Preprocessor took 25.39ms. Allocated memory is still 142.6MB. Free memory was 74.4MB in the beginning and 73.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:21:51,739 INFO L158 Benchmark]: RCFGBuilder took 224.95ms. Allocated memory is still 142.6MB. Free memory was 73.2MB in the beginning and 59.1MB in the end (delta: 14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:21:51,740 INFO L158 Benchmark]: TraceAbstraction took 1087.58ms. Allocated memory is still 142.6MB. Free memory was 59.1MB in the beginning and 93.8MB in the end (delta: -34.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:21:51,741 INFO L158 Benchmark]: Witness Printer took 69.05ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 86.5MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:21:51,744 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 201.3MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 459.23ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 75.9MB in the end (delta: 27.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.59ms. Allocated memory is still 142.6MB. Free memory was 75.9MB in the beginning and 74.4MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.39ms. Allocated memory is still 142.6MB. Free memory was 74.4MB in the beginning and 73.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 224.95ms. Allocated memory is still 142.6MB. Free memory was 73.2MB in the beginning and 59.1MB in the end (delta: 14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1087.58ms. Allocated memory is still 142.6MB. Free memory was 59.1MB in the beginning and 93.8MB in the end (delta: -34.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 69.05ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 86.5MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 946]: Data race detected Data race detected The following path leads to a data race: [L928] 0 int glob; VAL [glob=0] [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, m={1:0}] [L930] 0 pthread_mutex_t n = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, m={1:0}, n={2:0}] [L938] 0 int i = __VERIFIER_nondet_int(); VAL [glob=0, i=1, m={1:0}, n={2:0}] [L939] 0 pthread_t id; VAL [glob=0, i=1, m={1:0}, n={2:0}] [L940] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, glob=0, i=1, id=-1, m={1:0}, n={2:0}] [L942] COND TRUE 0 \read(i) VAL [\old(arg)={0:0}, glob=0, i=1, id=-1, m={1:0}, n={2:0}] [L945] COND TRUE 0 \read(i) VAL [\old(arg)={0:0}, glob=0, i=1, id=-1, m={1:0}, n={2:0}] [L933] 1 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=0, m={1:0}, n={2:0}] [L946] 0 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=0, i=1, id=-1, m={1:0}, n={2:0}] [L933] 1 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=1, m={1:0}, n={2:0}] [L946] 0 glob++ VAL [\old(arg)={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++ [933] and C: glob++ [946] - UnprovableResult [Line: 946]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 940]: 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: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 933]: 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, 94 locations, 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: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 120 IncrementalHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 28 mSDtfsCounter, 120 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=278occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 166 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! [2025-01-09 21:21:51,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)