./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 07d1abd007d632a3b4dac260b28d2ba8a005f15955283342b1ec38e7417e11f4 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:16:29,246 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:16:29,298 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:16:29,303 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:16:29,303 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:16:29,324 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:16:29,325 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:16:29,325 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:16:29,325 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:16:29,326 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:16:29,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:16:29,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:16:29,327 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:16:29,327 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:16:29,327 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:16:29,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:16:29,328 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:16:29,328 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:16:29,328 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:16:29,328 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:16:29,329 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:16:29,329 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:16:29,329 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:16:29,330 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:16:29,330 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:16:29,330 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:16:29,330 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:16:29,330 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:16:29,331 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:16:29,331 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:16:29,331 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:16:29,331 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:16:29,332 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:16:29,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:16:29,332 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:16:29,332 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:16:29,332 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:16:29,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:16:29,333 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:16:29,333 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:16:29,333 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:16:29,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:16:29,334 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07d1abd007d632a3b4dac260b28d2ba8a005f15955283342b1ec38e7417e11f4 [2024-11-20 17:16:29,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:16:29,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:16:29,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:16:29,525 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:16:29,526 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:16:29,527 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i [2024-11-20 17:16:30,753 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:16:30,937 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:16:30,937 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i [2024-11-20 17:16:30,950 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a7298644/6970cc9a821b42c0b96f41a8166911b5/FLAG69692765e [2024-11-20 17:16:30,960 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a7298644/6970cc9a821b42c0b96f41a8166911b5 [2024-11-20 17:16:30,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:16:30,964 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:16:30,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:16:30,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:16:30,969 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:16:30,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:16:30" (1/1) ... [2024-11-20 17:16:30,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71ca2199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:30, skipping insertion in model container [2024-11-20 17:16:30,971 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:16:30" (1/1) ... [2024-11-20 17:16:31,006 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:16:31,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:16:31,276 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:16:31,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:16:31,351 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:16:31,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:31 WrapperNode [2024-11-20 17:16:31,351 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:16:31,352 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:16:31,352 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:16:31,352 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:16:31,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:31" (1/1) ... [2024-11-20 17:16:31,378 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:31" (1/1) ... [2024-11-20 17:16:31,396 INFO L138 Inliner]: procedures = 167, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 90 [2024-11-20 17:16:31,396 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:16:31,396 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:16:31,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:16:31,397 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:16:31,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:31" (1/1) ... [2024-11-20 17:16:31,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:31" (1/1) ... [2024-11-20 17:16:31,406 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:31" (1/1) ... [2024-11-20 17:16:31,425 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 17:16:31,425 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:31" (1/1) ... [2024-11-20 17:16:31,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:31" (1/1) ... [2024-11-20 17:16:31,428 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:31" (1/1) ... [2024-11-20 17:16:31,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:31" (1/1) ... [2024-11-20 17:16:31,432 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:31" (1/1) ... [2024-11-20 17:16:31,432 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:31" (1/1) ... [2024-11-20 17:16:31,434 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:16:31,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:16:31,435 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:16:31,435 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:16:31,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:31" (1/1) ... [2024-11-20 17:16:31,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:16:31,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:16:31,465 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 17:16:31,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 17:16:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-20 17:16:31,503 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-20 17:16:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-20 17:16:31,503 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-20 17:16:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:16:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 17:16:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:16:31,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:16:31,504 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:16:31,591 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:16:31,592 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:16:31,692 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:16:31,692 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:16:31,759 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:16:31,760 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-20 17:16:31,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:16:31 BoogieIcfgContainer [2024-11-20 17:16:31,760 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:16:31,762 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:16:31,762 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:16:31,764 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:16:31,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:16:30" (1/3) ... [2024-11-20 17:16:31,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@342e7ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:16:31, skipping insertion in model container [2024-11-20 17:16:31,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:16:31" (2/3) ... [2024-11-20 17:16:31,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@342e7ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:16:31, skipping insertion in model container [2024-11-20 17:16:31,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:16:31" (3/3) ... [2024-11-20 17:16:31,766 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker.i [2024-11-20 17:16:31,778 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:16:31,778 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-20 17:16:31,778 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:16:31,810 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 17:16:31,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 52 transitions, 118 flow [2024-11-20 17:16:31,865 INFO L124 PetriNetUnfolderBase]: 10/50 cut-off events. [2024-11-20 17:16:31,865 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 17:16:31,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 50 events. 10/50 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 114 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 45. Up to 3 conditions per place. [2024-11-20 17:16:31,871 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 52 transitions, 118 flow [2024-11-20 17:16:31,874 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 49 transitions, 110 flow [2024-11-20 17:16:31,885 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:16:31,894 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=None, 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;@734df13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:16:31,894 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-20 17:16:31,905 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:16:31,905 INFO L124 PetriNetUnfolderBase]: 6/31 cut-off events. [2024-11-20 17:16:31,905 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:16:31,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:16:31,906 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:16:31,907 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 17:16:31,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:16:31,911 INFO L85 PathProgramCache]: Analyzing trace with hash 497990235, now seen corresponding path program 1 times [2024-11-20 17:16:31,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:16:31,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519969435] [2024-11-20 17:16:31,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:16:31,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:16:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:16:32,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:16:32,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:16:32,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519969435] [2024-11-20 17:16:32,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519969435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:16:32,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:16:32,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:16:32,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782944952] [2024-11-20 17:16:32,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:16:32,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:16:32,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:16:32,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:16:32,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:16:32,151 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 52 [2024-11-20 17:16:32,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-11-20 17:16:32,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:16:32,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 52 [2024-11-20 17:16:32,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:16:32,271 INFO L124 PetriNetUnfolderBase]: 99/288 cut-off events. [2024-11-20 17:16:32,271 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-20 17:16:32,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 288 events. 99/288 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1716 event pairs, 34 based on Foata normal form. 62/311 useless extension candidates. Maximal degree in co-relation 423. Up to 92 conditions per place. [2024-11-20 17:16:32,275 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 21 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2024-11-20 17:16:32,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 51 transitions, 168 flow [2024-11-20 17:16:32,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:16:32,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:16:32,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2024-11-20 17:16:32,284 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8012820512820513 [2024-11-20 17:16:32,285 INFO L175 Difference]: Start difference. First operand has 46 places, 49 transitions, 110 flow. Second operand 3 states and 125 transitions. [2024-11-20 17:16:32,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 51 transitions, 168 flow [2024-11-20 17:16:32,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 51 transitions, 156 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 17:16:32,289 INFO L231 Difference]: Finished difference. Result has 44 places, 44 transitions, 110 flow [2024-11-20 17:16:32,291 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=44, PETRI_TRANSITIONS=44} [2024-11-20 17:16:32,294 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -2 predicate places. [2024-11-20 17:16:32,294 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 44 transitions, 110 flow [2024-11-20 17:16:32,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-11-20 17:16:32,294 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:16:32,294 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:16:32,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 17:16:32,295 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 17:16:32,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:16:32,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1269866237, now seen corresponding path program 1 times [2024-11-20 17:16:32,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:16:32,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778371656] [2024-11-20 17:16:32,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:16:32,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:16:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:16:32,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:16:32,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:16:32,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778371656] [2024-11-20 17:16:32,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778371656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:16:32,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:16:32,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:16:32,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390190857] [2024-11-20 17:16:32,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:16:32,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:16:32,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:16:32,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:16:32,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:16:32,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 52 [2024-11-20 17:16:32,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 44 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2024-11-20 17:16:32,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:16:32,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 52 [2024-11-20 17:16:32,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:16:32,416 INFO L124 PetriNetUnfolderBase]: 89/285 cut-off events. [2024-11-20 17:16:32,416 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-11-20 17:16:32,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 285 events. 89/285 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1687 event pairs, 47 based on Foata normal form. 17/279 useless extension candidates. Maximal degree in co-relation 172. Up to 113 conditions per place. [2024-11-20 17:16:32,419 INFO L140 encePairwiseOnDemand]: 48/52 looper letters, 21 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2024-11-20 17:16:32,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 50 transitions, 170 flow [2024-11-20 17:16:32,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:16:32,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:16:32,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-11-20 17:16:32,423 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7564102564102564 [2024-11-20 17:16:32,423 INFO L175 Difference]: Start difference. First operand has 44 places, 44 transitions, 110 flow. Second operand 3 states and 118 transitions. [2024-11-20 17:16:32,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 50 transitions, 170 flow [2024-11-20 17:16:32,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 50 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:16:32,424 INFO L231 Difference]: Finished difference. Result has 45 places, 44 transitions, 114 flow [2024-11-20 17:16:32,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=45, PETRI_TRANSITIONS=44} [2024-11-20 17:16:32,425 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2024-11-20 17:16:32,425 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 44 transitions, 114 flow [2024-11-20 17:16:32,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2024-11-20 17:16:32,428 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:16:32,428 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:16:32,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 17:16:32,428 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 17:16:32,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:16:32,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1729506037, now seen corresponding path program 1 times [2024-11-20 17:16:32,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:16:32,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165048554] [2024-11-20 17:16:32,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:16:32,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:16:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:16:32,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:16:32,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:16:32,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165048554] [2024-11-20 17:16:32,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165048554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:16:32,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:16:32,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:16:32,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510326044] [2024-11-20 17:16:32,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:16:32,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:16:32,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:16:32,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:16:32,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:16:32,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 52 [2024-11-20 17:16:32,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 44 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-20 17:16:32,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:16:32,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 52 [2024-11-20 17:16:32,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:16:32,548 INFO L124 PetriNetUnfolderBase]: 123/307 cut-off events. [2024-11-20 17:16:32,548 INFO L125 PetriNetUnfolderBase]: For 109/109 co-relation queries the response was YES. [2024-11-20 17:16:32,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 597 conditions, 307 events. 123/307 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1542 event pairs, 65 based on Foata normal form. 6/272 useless extension candidates. Maximal degree in co-relation 255. Up to 146 conditions per place. [2024-11-20 17:16:32,552 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 21 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2024-11-20 17:16:32,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 47 transitions, 171 flow [2024-11-20 17:16:32,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:16:32,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:16:32,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-11-20 17:16:32,555 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6987179487179487 [2024-11-20 17:16:32,555 INFO L175 Difference]: Start difference. First operand has 45 places, 44 transitions, 114 flow. Second operand 3 states and 109 transitions. [2024-11-20 17:16:32,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 47 transitions, 171 flow [2024-11-20 17:16:32,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 47 transitions, 169 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:16:32,558 INFO L231 Difference]: Finished difference. Result has 44 places, 41 transitions, 118 flow [2024-11-20 17:16:32,558 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=44, PETRI_TRANSITIONS=41} [2024-11-20 17:16:32,559 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -2 predicate places. [2024-11-20 17:16:32,559 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 41 transitions, 118 flow [2024-11-20 17:16:32,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-20 17:16:32,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:16:32,560 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:16:32,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 17:16:32,561 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 17:16:32,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:16:32,561 INFO L85 PathProgramCache]: Analyzing trace with hash -131239297, now seen corresponding path program 1 times [2024-11-20 17:16:32,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:16:32,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384289410] [2024-11-20 17:16:32,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:16:32,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:16:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:16:32,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:16:32,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:16:32,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384289410] [2024-11-20 17:16:32,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384289410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:16:32,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:16:32,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:16:32,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555560454] [2024-11-20 17:16:32,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:16:32,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:16:32,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:16:32,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:16:32,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:16:32,621 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 52 [2024-11-20 17:16:32,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 41 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-20 17:16:32,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:16:32,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 52 [2024-11-20 17:16:32,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:16:32,661 INFO L124 PetriNetUnfolderBase]: 109/259 cut-off events. [2024-11-20 17:16:32,661 INFO L125 PetriNetUnfolderBase]: For 90/102 co-relation queries the response was YES. [2024-11-20 17:16:32,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 521 conditions, 259 events. 109/259 cut-off events. For 90/102 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1247 event pairs, 60 based on Foata normal form. 5/238 useless extension candidates. Maximal degree in co-relation 207. Up to 125 conditions per place. [2024-11-20 17:16:32,663 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 18 selfloop transitions, 4 changer transitions 0/42 dead transitions. [2024-11-20 17:16:32,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 42 transitions, 163 flow [2024-11-20 17:16:32,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:16:32,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:16:32,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-11-20 17:16:32,666 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6794871794871795 [2024-11-20 17:16:32,666 INFO L175 Difference]: Start difference. First operand has 44 places, 41 transitions, 118 flow. Second operand 3 states and 106 transitions. [2024-11-20 17:16:32,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 42 transitions, 163 flow [2024-11-20 17:16:32,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 42 transitions, 151 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-20 17:16:32,668 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 114 flow [2024-11-20 17:16:32,670 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2024-11-20 17:16:32,671 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -4 predicate places. [2024-11-20 17:16:32,671 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 114 flow [2024-11-20 17:16:32,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-20 17:16:32,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:16:32,671 INFO L204 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] [2024-11-20 17:16:32,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 17:16:32,672 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-20 17:16:32,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:16:32,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1028934090, now seen corresponding path program 1 times [2024-11-20 17:16:32,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:16:32,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235829467] [2024-11-20 17:16:32,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:16:32,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:16:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:16:32,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:16:32,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:16:32,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235829467] [2024-11-20 17:16:32,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235829467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:16:32,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:16:32,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:16:32,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8294784] [2024-11-20 17:16:32,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:16:32,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:16:32,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:16:32,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:16:32,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:16:32,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 52 [2024-11-20 17:16:32,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2024-11-20 17:16:32,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:16:32,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 52 [2024-11-20 17:16:32,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:16:32,749 INFO L124 PetriNetUnfolderBase]: 72/189 cut-off events. [2024-11-20 17:16:32,749 INFO L125 PetriNetUnfolderBase]: For 125/127 co-relation queries the response was YES. [2024-11-20 17:16:32,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 410 conditions, 189 events. 72/189 cut-off events. For 125/127 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 900 event pairs, 54 based on Foata normal form. 2/155 useless extension candidates. Maximal degree in co-relation 195. Up to 116 conditions per place. [2024-11-20 17:16:32,751 INFO L140 encePairwiseOnDemand]: 50/52 looper letters, 0 selfloop transitions, 0 changer transitions 37/37 dead transitions. [2024-11-20 17:16:32,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 37 transitions, 140 flow [2024-11-20 17:16:32,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:16:32,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:16:32,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 107 transitions. [2024-11-20 17:16:32,752 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6858974358974359 [2024-11-20 17:16:32,752 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 114 flow. Second operand 3 states and 107 transitions. [2024-11-20 17:16:32,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 37 transitions, 140 flow [2024-11-20 17:16:32,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 37 transitions, 127 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 17:16:32,753 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2024-11-20 17:16:32,753 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2024-11-20 17:16:32,754 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2024-11-20 17:16:32,754 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2024-11-20 17:16:32,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2024-11-20 17:16:32,759 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-11-20 17:16:32,759 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-11-20 17:16:32,760 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-11-20 17:16:32,760 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-20 17:16:32,760 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-20 17:16:32,760 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2024-11-20 17:16:32,760 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-11-20 17:16:32,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 17:16:32,761 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-20 17:16:32,766 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 17:16:32,767 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 17:16:32,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:16:32 BasicIcfg [2024-11-20 17:16:32,771 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 17:16:32,772 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 17:16:32,772 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 17:16:32,772 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 17:16:32,772 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:16:31" (3/4) ... [2024-11-20 17:16:32,776 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 17:16:32,778 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2024-11-20 17:16:32,778 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2024-11-20 17:16:32,781 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-11-20 17:16:32,781 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-20 17:16:32,781 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-20 17:16:32,781 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-20 17:16:32,846 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 17:16:32,846 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 17:16:32,846 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 17:16:32,847 INFO L158 Benchmark]: Toolchain (without parser) took 1883.16ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 79.0MB in the beginning and 88.9MB in the end (delta: -9.9MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2024-11-20 17:16:32,847 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 151.0MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:16:32,847 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.15ms. Allocated memory is still 151.0MB. Free memory was 78.7MB in the beginning and 56.3MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-20 17:16:32,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.88ms. Allocated memory is still 151.0MB. Free memory was 56.3MB in the beginning and 119.7MB in the end (delta: -63.5MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2024-11-20 17:16:32,848 INFO L158 Benchmark]: Boogie Preprocessor took 37.44ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 119.7MB in the beginning and 176.8MB in the end (delta: -57.1MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2024-11-20 17:16:32,849 INFO L158 Benchmark]: RCFGBuilder took 325.83ms. Allocated memory is still 207.6MB. Free memory was 176.8MB in the beginning and 156.9MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-20 17:16:32,851 INFO L158 Benchmark]: TraceAbstraction took 1009.50ms. Allocated memory is still 207.6MB. Free memory was 155.8MB in the beginning and 93.6MB in the end (delta: 62.2MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2024-11-20 17:16:32,851 INFO L158 Benchmark]: Witness Printer took 74.88ms. Allocated memory is still 207.6MB. Free memory was 93.6MB in the beginning and 88.9MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 17:16:32,853 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 151.0MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.15ms. Allocated memory is still 151.0MB. Free memory was 78.7MB in the beginning and 56.3MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.88ms. Allocated memory is still 151.0MB. Free memory was 56.3MB in the beginning and 119.7MB in the end (delta: -63.5MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.44ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 119.7MB in the beginning and 176.8MB in the end (delta: -57.1MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * RCFGBuilder took 325.83ms. Allocated memory is still 207.6MB. Free memory was 176.8MB in the beginning and 156.9MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1009.50ms. Allocated memory is still 207.6MB. Free memory was 155.8MB in the beginning and 93.6MB in the end (delta: 62.2MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. * Witness Printer took 74.88ms. Allocated memory is still 207.6MB. Free memory was 93.6MB in the beginning and 88.9MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 16]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 779]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 77 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: 0.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 52 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 154 IncrementalHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 7 mSDtfsCounter, 154 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=3, 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, 0.3s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-20 17:16:32,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE