./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/rfi003_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/pthread-wmm/rfi003_tso.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 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:30:34,775 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:30:34,849 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:30:34,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:30:34,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:30:34,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:30:34,883 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:30:34,883 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:30:34,884 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:30:34,885 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:30:34,885 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:30:34,886 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:30:34,886 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:30:34,887 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:30:34,889 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:30:34,889 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:30:34,889 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:30:34,890 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:30:34,890 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:30:34,890 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:30:34,891 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:30:34,894 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:30:34,894 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:30:34,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:30:34,895 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:30:34,896 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:30:34,896 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:30:34,896 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:30:34,896 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:30:34,897 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:30:34,897 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:30:34,897 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:30:34,898 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:30:34,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:30:34,899 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:30:34,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:30:34,899 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:30:34,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:30:34,900 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:30:34,900 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:30:34,900 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:30:34,901 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:30:34,901 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 [2024-11-19 09:30:35,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:30:35,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:30:35,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:30:35,177 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:30:35,177 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:30:35,178 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2024-11-19 09:30:36,669 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:30:36,915 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:30:36,915 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2024-11-19 09:30:36,937 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6168e2f4f/29a75bd5ce6e4cbd9e20b067b04aa664/FLAGf357a8658 [2024-11-19 09:30:36,951 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6168e2f4f/29a75bd5ce6e4cbd9e20b067b04aa664 [2024-11-19 09:30:36,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:30:36,955 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:30:36,956 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:30:36,956 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:30:36,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:30:36,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:30:36" (1/1) ... [2024-11-19 09:30:36,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fce4a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:30:36, skipping insertion in model container [2024-11-19 09:30:36,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:30:36" (1/1) ... [2024-11-19 09:30:37,020 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:30:37,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:30:37,531 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:30:37,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:30:37,661 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:30:37,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:30:37 WrapperNode [2024-11-19 09:30:37,662 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:30:37,663 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:30:37,663 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:30:37,664 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:30:37,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:30:37" (1/1) ... [2024-11-19 09:30:37,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:30:37" (1/1) ... [2024-11-19 09:30:37,738 INFO L138 Inliner]: procedures = 174, calls = 40, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 172 [2024-11-19 09:30:37,742 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:30:37,743 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:30:37,743 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:30:37,743 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:30:37,754 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:30:37" (1/1) ... [2024-11-19 09:30:37,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:30:37" (1/1) ... [2024-11-19 09:30:37,760 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:30:37" (1/1) ... [2024-11-19 09:30:37,792 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]. [2024-11-19 09:30:37,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:30:37" (1/1) ... [2024-11-19 09:30:37,795 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:30:37" (1/1) ... [2024-11-19 09:30:37,806 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:30:37" (1/1) ... [2024-11-19 09:30:37,811 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:30:37" (1/1) ... [2024-11-19 09:30:37,813 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:30:37" (1/1) ... [2024-11-19 09:30:37,815 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:30:37" (1/1) ... [2024-11-19 09:30:37,822 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:30:37,827 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:30:37,827 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:30:37,827 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:30:37,831 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:30:37" (1/1) ... [2024-11-19 09:30:37,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:30:37,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:30:37,865 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) [2024-11-19 09:30:37,867 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 [2024-11-19 09:30:37,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 09:30:37,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:30:37,915 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-19 09:30:37,915 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-19 09:30:37,916 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-19 09:30:37,916 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-19 09:30:37,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:30:37,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 09:30:37,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:30:37,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:30:37,918 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 09:30:38,059 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:30:38,062 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:30:38,495 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:30:38,496 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:30:38,770 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:30:38,770 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 09:30:38,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:30:38 BoogieIcfgContainer [2024-11-19 09:30:38,771 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:30:38,776 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:30:38,776 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:30:38,780 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:30:38,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:30:36" (1/3) ... [2024-11-19 09:30:38,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6ec31d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:30:38, skipping insertion in model container [2024-11-19 09:30:38,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:30:37" (2/3) ... [2024-11-19 09:30:38,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6ec31d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:30:38, skipping insertion in model container [2024-11-19 09:30:38,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:30:38" (3/3) ... [2024-11-19 09:30:38,785 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2024-11-19 09:30:38,802 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:30:38,803 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-19 09:30:38,803 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:30:38,860 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 09:30:38,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 38 transitions, 84 flow [2024-11-19 09:30:38,932 INFO L124 PetriNetUnfolderBase]: 2/36 cut-off events. [2024-11-19 09:30:38,932 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:30:38,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 36 events. 2/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 66 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2024-11-19 09:30:38,940 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 38 transitions, 84 flow [2024-11-19 09:30:38,943 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 36 transitions, 78 flow [2024-11-19 09:30:38,955 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:30:38,963 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;@5ba1f7a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:30:38,963 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-19 09:30:38,969 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:30:38,970 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-19 09:30:38,970 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:30:38,970 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:30:38,972 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:30:38,972 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-19 09:30:38,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:30:38,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1857544288, now seen corresponding path program 1 times [2024-11-19 09:30:38,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:30:38,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831776942] [2024-11-19 09:30:38,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:30:38,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:30:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:30:39,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:30:39,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:30:39,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831776942] [2024-11-19 09:30:39,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831776942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:30:39,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:30:39,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:30:39,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122116793] [2024-11-19 09:30:39,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:30:39,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:30:39,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:30:39,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:30:39,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:30:39,526 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 38 [2024-11-19 09:30:39,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-19 09:30:39,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:30:39,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 38 [2024-11-19 09:30:39,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:30:39,878 INFO L124 PetriNetUnfolderBase]: 325/618 cut-off events. [2024-11-19 09:30:39,878 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:30:39,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1182 conditions, 618 events. 325/618 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3323 event pairs, 30 based on Foata normal form. 48/659 useless extension candidates. Maximal degree in co-relation 1172. Up to 476 conditions per place. [2024-11-19 09:30:39,891 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 27 selfloop transitions, 2 changer transitions 2/43 dead transitions. [2024-11-19 09:30:39,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 43 transitions, 154 flow [2024-11-19 09:30:39,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:30:39,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:30:39,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2024-11-19 09:30:39,904 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6842105263157895 [2024-11-19 09:30:39,906 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 78 flow. Second operand 3 states and 78 transitions. [2024-11-19 09:30:39,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 43 transitions, 154 flow [2024-11-19 09:30:39,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:30:39,911 INFO L231 Difference]: Finished difference. Result has 39 places, 31 transitions, 70 flow [2024-11-19 09:30:39,914 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=39, PETRI_TRANSITIONS=31} [2024-11-19 09:30:39,919 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -2 predicate places. [2024-11-19 09:30:39,919 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 31 transitions, 70 flow [2024-11-19 09:30:39,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-19 09:30:39,919 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:30:39,920 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:30:39,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:30:39,920 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-19 09:30:39,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:30:39,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1875379275, now seen corresponding path program 1 times [2024-11-19 09:30:39,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:30:39,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756620888] [2024-11-19 09:30:39,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:30:39,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:30:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:30:40,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:30:40,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:30:40,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756620888] [2024-11-19 09:30:40,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756620888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:30:40,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:30:40,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:30:40,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464625482] [2024-11-19 09:30:40,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:30:40,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:30:40,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:30:40,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:30:40,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:30:40,039 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-19 09:30:40,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 31 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-19 09:30:40,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:30:40,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-19 09:30:40,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:30:40,223 INFO L124 PetriNetUnfolderBase]: 287/600 cut-off events. [2024-11-19 09:30:40,223 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-19 09:30:40,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 600 events. 287/600 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3358 event pairs, 287 based on Foata normal form. 24/613 useless extension candidates. Maximal degree in co-relation 1124. Up to 488 conditions per place. [2024-11-19 09:30:40,229 INFO L140 encePairwiseOnDemand]: 36/38 looper letters, 17 selfloop transitions, 1 changer transitions 1/30 dead transitions. [2024-11-19 09:30:40,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 106 flow [2024-11-19 09:30:40,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:30:40,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:30:40,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2024-11-19 09:30:40,232 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5175438596491229 [2024-11-19 09:30:40,232 INFO L175 Difference]: Start difference. First operand has 39 places, 31 transitions, 70 flow. Second operand 3 states and 59 transitions. [2024-11-19 09:30:40,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 106 flow [2024-11-19 09:30:40,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 30 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:30:40,233 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 64 flow [2024-11-19 09:30:40,234 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2024-11-19 09:30:40,234 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -4 predicate places. [2024-11-19 09:30:40,235 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 64 flow [2024-11-19 09:30:40,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-19 09:30:40,235 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:30:40,235 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:30:40,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 09:30:40,236 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-19 09:30:40,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:30:40,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1875380614, now seen corresponding path program 1 times [2024-11-19 09:30:40,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:30:40,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932790033] [2024-11-19 09:30:40,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:30:40,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:30:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:30:40,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:30:40,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:30:40,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932790033] [2024-11-19 09:30:40,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932790033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:30:40,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:30:40,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:30:40,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913649314] [2024-11-19 09:30:40,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:30:40,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:30:40,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:30:40,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:30:40,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:30:40,546 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2024-11-19 09:30:40,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2024-11-19 09:30:40,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:30:40,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2024-11-19 09:30:40,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:30:40,770 INFO L124 PetriNetUnfolderBase]: 296/601 cut-off events. [2024-11-19 09:30:40,771 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:30:40,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1149 conditions, 601 events. 296/601 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2942 event pairs, 62 based on Foata normal form. 35/631 useless extension candidates. Maximal degree in co-relation 1143. Up to 289 conditions per place. [2024-11-19 09:30:40,776 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 38 selfloop transitions, 4 changer transitions 1/51 dead transitions. [2024-11-19 09:30:40,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 51 transitions, 196 flow [2024-11-19 09:30:40,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:30:40,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:30:40,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2024-11-19 09:30:40,778 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5855263157894737 [2024-11-19 09:30:40,779 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 64 flow. Second operand 4 states and 89 transitions. [2024-11-19 09:30:40,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 51 transitions, 196 flow [2024-11-19 09:30:40,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 51 transitions, 195 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:30:40,781 INFO L231 Difference]: Finished difference. Result has 40 places, 31 transitions, 89 flow [2024-11-19 09:30:40,781 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=89, PETRI_PLACES=40, PETRI_TRANSITIONS=31} [2024-11-19 09:30:40,782 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2024-11-19 09:30:40,782 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 89 flow [2024-11-19 09:30:40,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2024-11-19 09:30:40,782 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:30:40,782 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:30:40,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 09:30:40,783 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-19 09:30:40,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:30:40,784 INFO L85 PathProgramCache]: Analyzing trace with hash 757741343, now seen corresponding path program 1 times [2024-11-19 09:30:40,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:30:40,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466031959] [2024-11-19 09:30:40,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:30:40,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:30:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:30:41,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:30:41,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:30:41,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466031959] [2024-11-19 09:30:41,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466031959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:30:41,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:30:41,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 09:30:41,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420616330] [2024-11-19 09:30:41,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:30:41,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:30:41,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:30:41,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:30:41,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:30:41,201 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2024-11-19 09:30:41,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 89 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-19 09:30:41,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:30:41,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2024-11-19 09:30:41,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:30:41,375 INFO L124 PetriNetUnfolderBase]: 138/284 cut-off events. [2024-11-19 09:30:41,376 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-19 09:30:41,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 662 conditions, 284 events. 138/284 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1014 event pairs, 42 based on Foata normal form. 20/299 useless extension candidates. Maximal degree in co-relation 653. Up to 116 conditions per place. [2024-11-19 09:30:41,378 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 31 selfloop transitions, 6 changer transitions 1/46 dead transitions. [2024-11-19 09:30:41,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 46 transitions, 200 flow [2024-11-19 09:30:41,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:30:41,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:30:41,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 95 transitions. [2024-11-19 09:30:41,380 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-19 09:30:41,380 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 89 flow. Second operand 5 states and 95 transitions. [2024-11-19 09:30:41,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 46 transitions, 200 flow [2024-11-19 09:30:41,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 46 transitions, 191 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-19 09:30:41,382 INFO L231 Difference]: Finished difference. Result has 44 places, 31 transitions, 105 flow [2024-11-19 09:30:41,382 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=105, PETRI_PLACES=44, PETRI_TRANSITIONS=31} [2024-11-19 09:30:41,385 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 3 predicate places. [2024-11-19 09:30:41,385 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 31 transitions, 105 flow [2024-11-19 09:30:41,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-19 09:30:41,386 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:30:41,386 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, 1, 1, 1] [2024-11-19 09:30:41,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 09:30:41,387 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-19 09:30:41,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:30:41,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1092507095, now seen corresponding path program 1 times [2024-11-19 09:30:41,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:30:41,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110483714] [2024-11-19 09:30:41,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:30:41,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:30:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:30:46,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:30:46,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:30:46,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110483714] [2024-11-19 09:30:46,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110483714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:30:46,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:30:46,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 09:30:46,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415328367] [2024-11-19 09:30:46,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:30:46,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 09:30:46,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:30:46,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 09:30:46,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-19 09:30:46,747 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-19 09:30:46,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 31 transitions, 105 flow. Second operand has 13 states, 13 states have (on average 14.307692307692308) internal successors, (186), 13 states have internal predecessors, (186), 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) [2024-11-19 09:30:46,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:30:46,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-19 09:30:46,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:30:47,640 INFO L124 PetriNetUnfolderBase]: 164/381 cut-off events. [2024-11-19 09:30:47,640 INFO L125 PetriNetUnfolderBase]: For 124/124 co-relation queries the response was YES. [2024-11-19 09:30:47,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 845 conditions, 381 events. 164/381 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1587 event pairs, 26 based on Foata normal form. 4/378 useless extension candidates. Maximal degree in co-relation 834. Up to 142 conditions per place. [2024-11-19 09:30:47,644 INFO L140 encePairwiseOnDemand]: 27/38 looper letters, 28 selfloop transitions, 17 changer transitions 15/72 dead transitions. [2024-11-19 09:30:47,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 72 transitions, 315 flow [2024-11-19 09:30:47,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 09:30:47,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 09:30:47,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 191 transitions. [2024-11-19 09:30:47,648 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5026315789473684 [2024-11-19 09:30:47,648 INFO L175 Difference]: Start difference. First operand has 44 places, 31 transitions, 105 flow. Second operand 10 states and 191 transitions. [2024-11-19 09:30:47,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 72 transitions, 315 flow [2024-11-19 09:30:47,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 72 transitions, 281 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-19 09:30:47,654 INFO L231 Difference]: Finished difference. Result has 53 places, 47 transitions, 182 flow [2024-11-19 09:30:47,655 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=182, PETRI_PLACES=53, PETRI_TRANSITIONS=47} [2024-11-19 09:30:47,656 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 12 predicate places. [2024-11-19 09:30:47,657 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 47 transitions, 182 flow [2024-11-19 09:30:47,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.307692307692308) internal successors, (186), 13 states have internal predecessors, (186), 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) [2024-11-19 09:30:47,658 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:30:47,658 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, 1, 1, 1] [2024-11-19 09:30:47,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 09:30:47,659 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-19 09:30:47,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:30:47,660 INFO L85 PathProgramCache]: Analyzing trace with hash 374494543, now seen corresponding path program 2 times [2024-11-19 09:30:47,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:30:47,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110764483] [2024-11-19 09:30:47,661 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:30:47,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:30:47,867 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 09:30:47,868 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:30:51,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:30:51,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:30:51,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110764483] [2024-11-19 09:30:51,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110764483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:30:51,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:30:51,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 09:30:51,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744034997] [2024-11-19 09:30:51,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:30:51,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 09:30:51,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:30:51,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 09:30:51,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-19 09:30:51,139 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-19 09:30:51,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 47 transitions, 182 flow. Second operand has 13 states, 13 states have (on average 14.307692307692308) internal successors, (186), 13 states have internal predecessors, (186), 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) [2024-11-19 09:30:51,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:30:51,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-19 09:30:51,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:30:51,771 INFO L124 PetriNetUnfolderBase]: 162/388 cut-off events. [2024-11-19 09:30:51,772 INFO L125 PetriNetUnfolderBase]: For 71/74 co-relation queries the response was YES. [2024-11-19 09:30:51,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 957 conditions, 388 events. 162/388 cut-off events. For 71/74 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1623 event pairs, 24 based on Foata normal form. 6/389 useless extension candidates. Maximal degree in co-relation 943. Up to 143 conditions per place. [2024-11-19 09:30:51,774 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 19 selfloop transitions, 7 changer transitions 40/78 dead transitions. [2024-11-19 09:30:51,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 78 transitions, 413 flow [2024-11-19 09:30:51,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 09:30:51,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-19 09:30:51,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 198 transitions. [2024-11-19 09:30:51,777 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47368421052631576 [2024-11-19 09:30:51,777 INFO L175 Difference]: Start difference. First operand has 53 places, 47 transitions, 182 flow. Second operand 11 states and 198 transitions. [2024-11-19 09:30:51,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 78 transitions, 413 flow [2024-11-19 09:30:51,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 78 transitions, 399 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-19 09:30:51,780 INFO L231 Difference]: Finished difference. Result has 62 places, 33 transitions, 137 flow [2024-11-19 09:30:51,782 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=137, PETRI_PLACES=62, PETRI_TRANSITIONS=33} [2024-11-19 09:30:51,783 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 21 predicate places. [2024-11-19 09:30:51,783 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 33 transitions, 137 flow [2024-11-19 09:30:51,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.307692307692308) internal successors, (186), 13 states have internal predecessors, (186), 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) [2024-11-19 09:30:51,784 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:30:51,784 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, 1, 1, 1] [2024-11-19 09:30:51,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 09:30:51,784 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-19 09:30:51,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:30:51,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1109587875, now seen corresponding path program 3 times [2024-11-19 09:30:51,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:30:51,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972993784] [2024-11-19 09:30:51,785 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:30:51,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:30:51,920 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 09:30:51,920 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:30:52,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:30:52,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:30:52,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972993784] [2024-11-19 09:30:52,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972993784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:30:52,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:30:52,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 09:30:52,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948334536] [2024-11-19 09:30:52,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:30:52,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 09:30:52,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:30:52,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 09:30:52,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 09:30:52,455 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2024-11-19 09:30:52,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 33 transitions, 137 flow. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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) [2024-11-19 09:30:52,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:30:52,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2024-11-19 09:30:52,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:30:52,666 INFO L124 PetriNetUnfolderBase]: 60/145 cut-off events. [2024-11-19 09:30:52,666 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-19 09:30:52,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 387 conditions, 145 events. 60/145 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 374 event pairs, 8 based on Foata normal form. 4/147 useless extension candidates. Maximal degree in co-relation 376. Up to 58 conditions per place. [2024-11-19 09:30:52,667 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 0 selfloop transitions, 0 changer transitions 39/39 dead transitions. [2024-11-19 09:30:52,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 39 transitions, 213 flow [2024-11-19 09:30:52,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 09:30:52,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 09:30:52,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 118 transitions. [2024-11-19 09:30:52,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3881578947368421 [2024-11-19 09:30:52,668 INFO L175 Difference]: Start difference. First operand has 62 places, 33 transitions, 137 flow. Second operand 8 states and 118 transitions. [2024-11-19 09:30:52,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 39 transitions, 213 flow [2024-11-19 09:30:52,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 39 transitions, 169 flow, removed 6 selfloop flow, removed 14 redundant places. [2024-11-19 09:30:52,671 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2024-11-19 09:30:52,671 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2024-11-19 09:30:52,672 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 6 predicate places. [2024-11-19 09:30:52,672 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2024-11-19 09:30:52,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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) [2024-11-19 09:30:52,675 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-19 09:30:52,676 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-19 09:30:52,676 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2024-11-19 09:30:52,676 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-19 09:30:52,677 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-19 09:30:52,677 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2024-11-19 09:30:52,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 09:30:52,677 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2024-11-19 09:30:52,683 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 09:30:52,683 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 09:30:52,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:30:52 BasicIcfg [2024-11-19 09:30:52,689 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 09:30:52,689 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 09:30:52,689 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 09:30:52,690 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 09:30:52,690 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:30:38" (3/4) ... [2024-11-19 09:30:52,692 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 09:30:52,695 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-19 09:30:52,695 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-19 09:30:52,701 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 79 nodes and edges [2024-11-19 09:30:52,702 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-19 09:30:52,702 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-19 09:30:52,702 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 09:30:52,810 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 09:30:52,810 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 09:30:52,810 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 09:30:52,811 INFO L158 Benchmark]: Toolchain (without parser) took 15856.10ms. Allocated memory was 157.3MB in the beginning and 666.9MB in the end (delta: 509.6MB). Free memory was 100.6MB in the beginning and 541.3MB in the end (delta: -440.7MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. [2024-11-19 09:30:52,811 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 09:30:52,812 INFO L158 Benchmark]: CACSL2BoogieTranslator took 706.38ms. Allocated memory is still 157.3MB. Free memory was 100.3MB in the beginning and 109.3MB in the end (delta: -8.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 09:30:52,812 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.04ms. Allocated memory is still 157.3MB. Free memory was 109.3MB in the beginning and 105.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 09:30:52,812 INFO L158 Benchmark]: Boogie Preprocessor took 83.39ms. Allocated memory is still 157.3MB. Free memory was 105.7MB in the beginning and 100.9MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 09:30:52,812 INFO L158 Benchmark]: RCFGBuilder took 946.90ms. Allocated memory is still 157.3MB. Free memory was 100.9MB in the beginning and 96.1MB in the end (delta: 4.8MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2024-11-19 09:30:52,813 INFO L158 Benchmark]: TraceAbstraction took 13913.13ms. Allocated memory was 157.3MB in the beginning and 666.9MB in the end (delta: 509.6MB). Free memory was 96.1MB in the beginning and 546.5MB in the end (delta: -450.4MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2024-11-19 09:30:52,813 INFO L158 Benchmark]: Witness Printer took 121.11ms. Allocated memory is still 666.9MB. Free memory was 546.5MB in the beginning and 541.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-19 09:30:52,814 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 706.38ms. Allocated memory is still 157.3MB. Free memory was 100.3MB in the beginning and 109.3MB in the end (delta: -8.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.04ms. Allocated memory is still 157.3MB. Free memory was 109.3MB in the beginning and 105.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.39ms. Allocated memory is still 157.3MB. Free memory was 105.7MB in the beginning and 100.9MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 946.90ms. Allocated memory is still 157.3MB. Free memory was 100.9MB in the beginning and 96.1MB in the end (delta: 4.8MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. * TraceAbstraction took 13913.13ms. Allocated memory was 157.3MB in the beginning and 666.9MB in the end (delta: 509.6MB). Free memory was 96.1MB in the beginning and 546.5MB in the end (delta: -450.4MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. * Witness Printer took 121.11ms. Allocated memory is still 666.9MB. Free memory was 546.5MB in the beginning and 541.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 833]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: 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, 57 locations, 6 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: 13.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 277 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 254 mSDsluCounter, 161 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 141 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 875 IncrementalHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 20 mSDtfsCounter, 875 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=182occurred in iteration=5, InterpolantAutomatonStates: 44, 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, 0.8s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 1665 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2024-11-19 09:30:52,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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