./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-atomic/read_write_lock-1.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/pthread-atomic/read_write_lock-1.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 ab88d5d149a161a7149bad4a02dfeb168f970e6264d498d3725e0f24ecb8e5e3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:03:46,340 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:03:46,411 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:03:46,416 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:03:46,417 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:03:46,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:03:46,450 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:03:46,451 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:03:46,451 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:03:46,451 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:03:46,452 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:03:46,452 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:03:46,452 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:03:46,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:03:46,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:03:46,453 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:03:46,453 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:03:46,453 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:03:46,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:03:46,453 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:03:46,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:03:46,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:03:46,453 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:03:46,453 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:03:46,453 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:03:46,455 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:03:46,455 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:03:46,455 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:03:46,455 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:03:46,455 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:03:46,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:03:46,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:03:46,455 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:03:46,455 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:03:46,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:03:46,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:03:46,456 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:03:46,456 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:03:46,456 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:03:46,456 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:03:46,456 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:03:46,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:03:46,456 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:03:46,456 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:03:46,456 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:03:46,456 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:03:46,456 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 -> ab88d5d149a161a7149bad4a02dfeb168f970e6264d498d3725e0f24ecb8e5e3 [2025-01-09 21:03:46,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:03:46,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:03:46,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:03:46,781 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:03:46,781 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:03:46,783 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2025-01-09 21:03:48,091 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/99af4d18a/0ffa5cd4229c4a9a8cbac30712ef5177/FLAGe2bdf2da6 [2025-01-09 21:03:48,405 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:03:48,406 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2025-01-09 21:03:48,430 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/99af4d18a/0ffa5cd4229c4a9a8cbac30712ef5177/FLAGe2bdf2da6 [2025-01-09 21:03:48,447 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/99af4d18a/0ffa5cd4229c4a9a8cbac30712ef5177 [2025-01-09 21:03:48,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:03:48,450 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:03:48,452 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:03:48,452 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:03:48,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:03:48,456 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:03:48" (1/1) ... [2025-01-09 21:03:48,457 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b61bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:03:48, skipping insertion in model container [2025-01-09 21:03:48,458 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:03:48" (1/1) ... [2025-01-09 21:03:48,491 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:03:48,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:03:48,752 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:03:48,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:03:48,827 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:03:48,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:03:48 WrapperNode [2025-01-09 21:03:48,829 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:03:48,830 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:03:48,831 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:03:48,831 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:03:48,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:03:48" (1/1) ... [2025-01-09 21:03:48,846 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:03:48" (1/1) ... [2025-01-09 21:03:48,864 INFO L138 Inliner]: procedures = 163, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2025-01-09 21:03:48,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:03:48,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:03:48,867 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:03:48,868 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:03:48,873 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:03:48" (1/1) ... [2025-01-09 21:03:48,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:03:48" (1/1) ... [2025-01-09 21:03:48,877 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:03:48" (1/1) ... [2025-01-09 21:03:48,878 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:03:48" (1/1) ... [2025-01-09 21:03:48,886 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:03:48" (1/1) ... [2025-01-09 21:03:48,887 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:03:48" (1/1) ... [2025-01-09 21:03:48,890 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:03:48" (1/1) ... [2025-01-09 21:03:48,891 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:03:48" (1/1) ... [2025-01-09 21:03:48,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:03:48" (1/1) ... [2025-01-09 21:03:48,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:03:48,899 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:03:48,900 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:03:48,901 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:03:48,902 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:03:48" (1/1) ... [2025-01-09 21:03:48,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:03:48,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:03:48,934 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 21:03:48,937 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 21:03:48,958 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2025-01-09 21:03:48,959 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2025-01-09 21:03:48,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:03:48,959 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2025-01-09 21:03:48,959 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2025-01-09 21:03:48,959 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2025-01-09 21:03:48,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:03:48,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:03:48,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:03:48,959 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2025-01-09 21:03:48,960 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2025-01-09 21:03:48,961 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 21:03:49,077 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:03:49,079 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:03:49,283 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:03:49,283 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:03:49,314 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:03:49,314 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 21:03:49,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:03:49 BoogieIcfgContainer [2025-01-09 21:03:49,315 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:03:49,317 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:03:49,317 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:03:49,320 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:03:49,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:03:48" (1/3) ... [2025-01-09 21:03:49,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70927859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:03:49, skipping insertion in model container [2025-01-09 21:03:49,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:03:48" (2/3) ... [2025-01-09 21:03:49,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70927859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:03:49, skipping insertion in model container [2025-01-09 21:03:49,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:03:49" (3/3) ... [2025-01-09 21:03:49,326 INFO L128 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2025-01-09 21:03:49,339 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:03:49,341 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG read_write_lock-1.i that has 3 procedures, 93 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-01-09 21:03:49,342 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:03:49,444 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-01-09 21:03:49,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 130 transitions, 288 flow [2025-01-09 21:03:49,557 INFO L124 PetriNetUnfolderBase]: 4/126 cut-off events. [2025-01-09 21:03:49,560 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-01-09 21:03:49,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 126 events. 4/126 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 194 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2025-01-09 21:03:49,566 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 130 transitions, 288 flow [2025-01-09 21:03:49,570 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 121 transitions, 263 flow [2025-01-09 21:03:49,578 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:03:49,595 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;@36939a87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:03:49,596 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2025-01-09 21:03:49,608 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:03:49,609 INFO L124 PetriNetUnfolderBase]: 0/42 cut-off events. [2025-01-09 21:03:49,609 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:03:49,609 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:03:49,610 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] [2025-01-09 21:03:49,610 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2025-01-09 21:03:49,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:03:49,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1771409777, now seen corresponding path program 1 times [2025-01-09 21:03:49,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:03:49,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611299216] [2025-01-09 21:03:49,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:03:49,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:03:49,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-09 21:03:49,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-09 21:03:49,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:03:49,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:03:49,892 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 21:03:49,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:03:49,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611299216] [2025-01-09 21:03:49,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611299216] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:03:49,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:03:49,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:03:49,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679293800] [2025-01-09 21:03:49,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:03:49,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:03:49,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:03:49,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:03:49,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:03:49,976 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 130 [2025-01-09 21:03:49,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 121 transitions, 263 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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 21:03:49,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:03:49,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 130 [2025-01-09 21:03:49,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:03:51,194 INFO L124 PetriNetUnfolderBase]: 2982/7120 cut-off events. [2025-01-09 21:03:51,197 INFO L125 PetriNetUnfolderBase]: For 595/595 co-relation queries the response was YES. [2025-01-09 21:03:51,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12053 conditions, 7120 events. 2982/7120 cut-off events. For 595/595 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 66846 event pairs, 2150 based on Foata normal form. 809/7189 useless extension candidates. Maximal degree in co-relation 11819. Up to 3608 conditions per place. [2025-01-09 21:03:51,295 INFO L140 encePairwiseOnDemand]: 117/130 looper letters, 33 selfloop transitions, 8 changer transitions 0/131 dead transitions. [2025-01-09 21:03:51,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 131 transitions, 374 flow [2025-01-09 21:03:51,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:03:51,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:03:51,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2025-01-09 21:03:51,314 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8974358974358975 [2025-01-09 21:03:51,316 INFO L175 Difference]: Start difference. First operand has 130 places, 121 transitions, 263 flow. Second operand 3 states and 350 transitions. [2025-01-09 21:03:51,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 131 transitions, 374 flow [2025-01-09 21:03:51,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 131 transitions, 356 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-01-09 21:03:51,338 INFO L231 Difference]: Finished difference. Result has 125 places, 122 transitions, 300 flow [2025-01-09 21:03:51,341 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=125, PETRI_TRANSITIONS=122} [2025-01-09 21:03:51,347 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -5 predicate places. [2025-01-09 21:03:51,348 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 122 transitions, 300 flow [2025-01-09 21:03:51,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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 21:03:51,348 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:03:51,348 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] [2025-01-09 21:03:51,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:03:51,350 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2025-01-09 21:03:51,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:03:51,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1135139382, now seen corresponding path program 1 times [2025-01-09 21:03:51,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:03:51,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389966887] [2025-01-09 21:03:51,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:03:51,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:03:51,366 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-01-09 21:03:51,375 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-01-09 21:03:51,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:03:51,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:03:51,453 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 21:03:51,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:03:51,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389966887] [2025-01-09 21:03:51,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389966887] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:03:51,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:03:51,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:03:51,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800374032] [2025-01-09 21:03:51,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:03:51,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:03:51,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:03:51,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:03:51,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:03:51,484 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 130 [2025-01-09 21:03:51,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 122 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 21:03:51,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:03:51,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 130 [2025-01-09 21:03:51,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:03:53,883 INFO L124 PetriNetUnfolderBase]: 9474/21396 cut-off events. [2025-01-09 21:03:53,884 INFO L125 PetriNetUnfolderBase]: For 6187/6325 co-relation queries the response was YES. [2025-01-09 21:03:53,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42522 conditions, 21396 events. 9474/21396 cut-off events. For 6187/6325 co-relation queries the response was YES. Maximal size of possible extension queue 1176. Compared 233031 event pairs, 3039 based on Foata normal form. 1/18559 useless extension candidates. Maximal degree in co-relation 38086. Up to 7766 conditions per place. [2025-01-09 21:03:54,104 INFO L140 encePairwiseOnDemand]: 116/130 looper letters, 47 selfloop transitions, 15 changer transitions 0/150 dead transitions. [2025-01-09 21:03:54,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 150 transitions, 520 flow [2025-01-09 21:03:54,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:03:54,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:03:54,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2025-01-09 21:03:54,109 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.882051282051282 [2025-01-09 21:03:54,109 INFO L175 Difference]: Start difference. First operand has 125 places, 122 transitions, 300 flow. Second operand 3 states and 344 transitions. [2025-01-09 21:03:54,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 150 transitions, 520 flow [2025-01-09 21:03:54,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 150 transitions, 492 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:03:54,179 INFO L231 Difference]: Finished difference. Result has 127 places, 137 transitions, 434 flow [2025-01-09 21:03:54,180 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=434, PETRI_PLACES=127, PETRI_TRANSITIONS=137} [2025-01-09 21:03:54,181 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2025-01-09 21:03:54,181 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 137 transitions, 434 flow [2025-01-09 21:03:54,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 21:03:54,181 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:03:54,182 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] [2025-01-09 21:03:54,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:03:54,182 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2025-01-09 21:03:54,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:03:54,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1979830113, now seen corresponding path program 1 times [2025-01-09 21:03:54,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:03:54,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122905019] [2025-01-09 21:03:54,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:03:54,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:03:54,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-01-09 21:03:54,225 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-01-09 21:03:54,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:03:54,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:03:54,433 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 21:03:54,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:03:54,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122905019] [2025-01-09 21:03:54,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122905019] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:03:54,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:03:54,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:03:54,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520233543] [2025-01-09 21:03:54,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:03:54,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:03:54,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:03:54,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:03:54,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:03:54,467 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 130 [2025-01-09 21:03:54,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 137 transitions, 434 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 21:03:54,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:03:54,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 130 [2025-01-09 21:03:54,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:03:54,648 INFO L124 PetriNetUnfolderBase]: 448/1733 cut-off events. [2025-01-09 21:03:54,649 INFO L125 PetriNetUnfolderBase]: For 689/735 co-relation queries the response was YES. [2025-01-09 21:03:54,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3594 conditions, 1733 events. 448/1733 cut-off events. For 689/735 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 14741 event pairs, 128 based on Foata normal form. 199/1701 useless extension candidates. Maximal degree in co-relation 2251. Up to 714 conditions per place. [2025-01-09 21:03:54,660 INFO L140 encePairwiseOnDemand]: 122/130 looper letters, 10 selfloop transitions, 2 changer transitions 2/121 dead transitions. [2025-01-09 21:03:54,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 121 transitions, 421 flow [2025-01-09 21:03:54,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:03:54,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:03:54,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 347 transitions. [2025-01-09 21:03:54,663 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8897435897435897 [2025-01-09 21:03:54,663 INFO L175 Difference]: Start difference. First operand has 127 places, 137 transitions, 434 flow. Second operand 3 states and 347 transitions. [2025-01-09 21:03:54,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 121 transitions, 421 flow [2025-01-09 21:03:54,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 121 transitions, 393 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:03:54,669 INFO L231 Difference]: Finished difference. Result has 109 places, 116 transitions, 361 flow [2025-01-09 21:03:54,669 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=361, PETRI_PLACES=109, PETRI_TRANSITIONS=116} [2025-01-09 21:03:54,670 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -21 predicate places. [2025-01-09 21:03:54,670 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 116 transitions, 361 flow [2025-01-09 21:03:54,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 21:03:54,670 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:03:54,671 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] [2025-01-09 21:03:54,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:03:54,671 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2025-01-09 21:03:54,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:03:54,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1557056803, now seen corresponding path program 2 times [2025-01-09 21:03:54,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:03:54,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860760842] [2025-01-09 21:03:54,672 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:03:54,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:03:54,686 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 47 statements into 1 equivalence classes. [2025-01-09 21:03:54,696 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-01-09 21:03:54,698 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:03:54,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:03:54,810 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 21:03:54,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:03:54,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860760842] [2025-01-09 21:03:54,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860760842] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:03:54,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:03:54,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:03:54,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531645100] [2025-01-09 21:03:54,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:03:54,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:03:54,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:03:54,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:03:54,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:03:54,845 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 130 [2025-01-09 21:03:54,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 116 transitions, 361 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 21:03:54,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:03:54,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 130 [2025-01-09 21:03:54,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:03:54,874 INFO L124 PetriNetUnfolderBase]: 4/102 cut-off events. [2025-01-09 21:03:54,875 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2025-01-09 21:03:54,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 102 events. 4/102 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 154 event pairs, 0 based on Foata normal form. 7/106 useless extension candidates. Maximal degree in co-relation 120. Up to 10 conditions per place. [2025-01-09 21:03:54,875 INFO L140 encePairwiseOnDemand]: 126/130 looper letters, 6 selfloop transitions, 1 changer transitions 9/72 dead transitions. [2025-01-09 21:03:54,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 72 transitions, 191 flow [2025-01-09 21:03:54,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:03:54,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:03:54,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2025-01-09 21:03:54,877 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8692307692307693 [2025-01-09 21:03:54,877 INFO L175 Difference]: Start difference. First operand has 109 places, 116 transitions, 361 flow. Second operand 3 states and 339 transitions. [2025-01-09 21:03:54,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 72 transitions, 191 flow [2025-01-09 21:03:54,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 72 transitions, 179 flow, removed 4 selfloop flow, removed 3 redundant places. [2025-01-09 21:03:54,879 INFO L231 Difference]: Finished difference. Result has 80 places, 62 transitions, 134 flow [2025-01-09 21:03:54,879 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=80, PETRI_TRANSITIONS=62} [2025-01-09 21:03:54,882 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -50 predicate places. [2025-01-09 21:03:54,882 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 62 transitions, 134 flow [2025-01-09 21:03:54,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 21:03:54,882 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:03:54,883 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, 1] [2025-01-09 21:03:54,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 21:03:54,883 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2025-01-09 21:03:54,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:03:54,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1982342729, now seen corresponding path program 1 times [2025-01-09 21:03:54,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:03:54,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342089711] [2025-01-09 21:03:54,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:03:54,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:03:54,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-01-09 21:03:54,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-01-09 21:03:54,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:03:54,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:03:54,934 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 21:03:54,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:03:54,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342089711] [2025-01-09 21:03:54,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342089711] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:03:54,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:03:54,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:03:54,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697399374] [2025-01-09 21:03:54,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:03:54,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:03:54,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:03:54,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:03:54,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:03:54,966 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 130 [2025-01-09 21:03:54,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 62 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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 21:03:54,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:03:54,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 130 [2025-01-09 21:03:54,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:03:54,988 INFO L124 PetriNetUnfolderBase]: 5/73 cut-off events. [2025-01-09 21:03:54,988 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-01-09 21:03:54,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 73 events. 5/73 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 76 event pairs, 3 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 80. Up to 14 conditions per place. [2025-01-09 21:03:54,989 INFO L140 encePairwiseOnDemand]: 127/130 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2025-01-09 21:03:54,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 62 transitions, 156 flow [2025-01-09 21:03:54,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:03:54,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:03:54,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2025-01-09 21:03:54,991 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7974358974358975 [2025-01-09 21:03:54,993 INFO L175 Difference]: Start difference. First operand has 80 places, 62 transitions, 134 flow. Second operand 3 states and 311 transitions. [2025-01-09 21:03:54,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 62 transitions, 156 flow [2025-01-09 21:03:54,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 62 transitions, 154 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:03:54,994 INFO L231 Difference]: Finished difference. Result has 72 places, 0 transitions, 0 flow [2025-01-09 21:03:54,994 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=72, PETRI_TRANSITIONS=0} [2025-01-09 21:03:54,997 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -58 predicate places. [2025-01-09 21:03:54,997 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 0 transitions, 0 flow [2025-01-09 21:03:54,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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 21:03:55,004 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2025-01-09 21:03:55,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2025-01-09 21:03:55,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 13 remaining) [2025-01-09 21:03:55,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 13 remaining) [2025-01-09 21:03:55,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2025-01-09 21:03:55,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 13 remaining) [2025-01-09 21:03:55,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2025-01-09 21:03:55,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2025-01-09 21:03:55,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2025-01-09 21:03:55,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2025-01-09 21:03:55,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2025-01-09 21:03:55,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2025-01-09 21:03:55,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2025-01-09 21:03:55,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 21:03:55,008 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2025-01-09 21:03:55,014 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-09 21:03:55,015 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 21:03:55,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 09:03:55 BasicIcfg [2025-01-09 21:03:55,023 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 21:03:55,024 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 21:03:55,024 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 21:03:55,024 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 21:03:55,025 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:03:49" (3/4) ... [2025-01-09 21:03:55,026 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 21:03:55,030 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2025-01-09 21:03:55,031 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2025-01-09 21:03:55,034 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-01-09 21:03:55,034 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-09 21:03:55,034 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-01-09 21:03:55,034 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 21:03:55,109 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 21:03:55,109 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 21:03:55,109 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 21:03:55,110 INFO L158 Benchmark]: Toolchain (without parser) took 6659.44ms. Allocated memory was 142.6MB in the beginning and 830.5MB in the end (delta: 687.9MB). Free memory was 111.4MB in the beginning and 357.8MB in the end (delta: -246.4MB). Peak memory consumption was 439.3MB. Max. memory is 16.1GB. [2025-01-09 21:03:55,111 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:03:55,111 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.06ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 91.7MB in the end (delta: 19.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 21:03:55,112 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.74ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 90.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:03:55,112 INFO L158 Benchmark]: Boogie Preprocessor took 30.81ms. Allocated memory is still 142.6MB. Free memory was 89.9MB in the beginning and 89.0MB in the end (delta: 889.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:03:55,112 INFO L158 Benchmark]: RCFGBuilder took 416.03ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 74.5MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 21:03:55,112 INFO L158 Benchmark]: TraceAbstraction took 5706.27ms. Allocated memory was 142.6MB in the beginning and 830.5MB in the end (delta: 687.9MB). Free memory was 73.6MB in the beginning and 363.1MB in the end (delta: -289.6MB). Peak memory consumption was 397.4MB. Max. memory is 16.1GB. [2025-01-09 21:03:55,114 INFO L158 Benchmark]: Witness Printer took 85.57ms. Allocated memory is still 830.5MB. Free memory was 363.1MB in the beginning and 357.8MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:03:55,115 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.06ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 91.7MB in the end (delta: 19.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.74ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 90.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.81ms. Allocated memory is still 142.6MB. Free memory was 89.9MB in the beginning and 89.0MB in the end (delta: 889.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 416.03ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 74.5MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5706.27ms. Allocated memory was 142.6MB in the beginning and 830.5MB in the end (delta: 687.9MB). Free memory was 73.6MB in the beginning and 363.1MB in the end (delta: -289.6MB). Peak memory consumption was 397.4MB. Max. memory is 16.1GB. * Witness Printer took 85.57ms. Allocated memory is still 830.5MB. Free memory was 363.1MB in the beginning and 357.8MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 684]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 685]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 678]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 165 locations, 13 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: 5.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 181 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 243 IncrementalHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 35 mSDtfsCounter, 243 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=434occurred in iteration=2, InterpolantAutomatonStates: 15, 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, 0.6s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 300 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-09 21:03:55,134 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 Result: TRUE