./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.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/goblint-regression/06-symbeq_23-idxsense_nr.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 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:32:56,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:32:56,776 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:32:56,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:32:56,785 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:32:56,820 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:32:56,820 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:32:56,821 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:32:56,821 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:32:56,822 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:32:56,822 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:32:56,823 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:32:56,824 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:32:56,824 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:32:56,827 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:32:56,827 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:32:56,827 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:32:56,828 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:32:56,828 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:32:56,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:32:56,828 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:32:56,829 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:32:56,829 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:32:56,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:32:56,833 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:32:56,833 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:32:56,834 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:32:56,834 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:32:56,834 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:32:56,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:32:56,835 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:32:56,835 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:32:56,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:32:56,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:32:56,836 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:32:56,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:32:56,836 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:32:56,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:32:56,837 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:32:56,837 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:32:56,837 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:32:56,839 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:32:56,839 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 [2024-11-20 17:32:57,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:32:57,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:32:57,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:32:57,121 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:32:57,121 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:32:57,123 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2024-11-20 17:32:58,576 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:32:58,805 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:32:58,805 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2024-11-20 17:32:58,820 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5668d9bcb/dc52618c9462405c932ed372647192f8/FLAGa375ae6c5 [2024-11-20 17:32:59,138 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5668d9bcb/dc52618c9462405c932ed372647192f8 [2024-11-20 17:32:59,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:32:59,141 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:32:59,143 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:32:59,143 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:32:59,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:32:59,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:32:59" (1/1) ... [2024-11-20 17:32:59,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59689974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:59, skipping insertion in model container [2024-11-20 17:32:59,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:32:59" (1/1) ... [2024-11-20 17:32:59,187 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:32:59,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:32:59,640 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:32:59,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:32:59,761 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:32:59,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:59 WrapperNode [2024-11-20 17:32:59,761 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:32:59,762 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:32:59,763 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:32:59,763 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:32:59,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:59" (1/1) ... [2024-11-20 17:32:59,790 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:59" (1/1) ... [2024-11-20 17:32:59,819 INFO L138 Inliner]: procedures = 162, calls = 77, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 109 [2024-11-20 17:32:59,823 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:32:59,824 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:32:59,824 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:32:59,824 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:32:59,835 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:59" (1/1) ... [2024-11-20 17:32:59,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:59" (1/1) ... [2024-11-20 17:32:59,839 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:59" (1/1) ... [2024-11-20 17:32:59,858 INFO L175 MemorySlicer]: Split 66 memory accesses to 2 slices as follows [16, 50]. 76 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [10, 50]. The 3 writes are split as follows [3, 0]. [2024-11-20 17:32:59,860 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:59" (1/1) ... [2024-11-20 17:32:59,861 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:59" (1/1) ... [2024-11-20 17:32:59,870 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:59" (1/1) ... [2024-11-20 17:32:59,876 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:59" (1/1) ... [2024-11-20 17:32:59,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:59" (1/1) ... [2024-11-20 17:32:59,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:59" (1/1) ... [2024-11-20 17:32:59,885 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:32:59,890 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:32:59,890 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:32:59,890 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:32:59,891 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:59" (1/1) ... [2024-11-20 17:32:59,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:32:59,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:32:59,936 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 17:32:59,942 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 17:32:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 17:32:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 17:32:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 17:32:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 17:32:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 17:32:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:32:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-20 17:32:59,987 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-20 17:32:59,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 17:32:59,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 17:32:59,988 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 17:32:59,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:32:59,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:32:59,990 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 17:33:00,099 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:33:00,100 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:33:00,356 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:33:00,356 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:33:00,724 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:33:00,725 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 17:33:00,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:33:00 BoogieIcfgContainer [2024-11-20 17:33:00,726 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:33:00,728 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:33:00,729 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:33:00,732 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:33:00,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:32:59" (1/3) ... [2024-11-20 17:33:00,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a84899b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:33:00, skipping insertion in model container [2024-11-20 17:33:00,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:59" (2/3) ... [2024-11-20 17:33:00,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a84899b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:33:00, skipping insertion in model container [2024-11-20 17:33:00,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:33:00" (3/3) ... [2024-11-20 17:33:00,736 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2024-11-20 17:33:00,757 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:33:00,758 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-11-20 17:33:00,758 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:33:00,800 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 17:33:00,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 39 transitions, 82 flow [2024-11-20 17:33:00,859 INFO L124 PetriNetUnfolderBase]: 1/38 cut-off events. [2024-11-20 17:33:00,859 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:33:00,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 38 events. 1/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 57 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 3. Up to 2 conditions per place. [2024-11-20 17:33:00,866 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 39 transitions, 82 flow [2024-11-20 17:33:00,870 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 38 transitions, 79 flow [2024-11-20 17:33:00,880 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:33:00,887 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;@6576fb7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:33:00,888 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-20 17:33:00,896 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:33:00,897 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2024-11-20 17:33:00,897 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:33:00,897 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:33:00,898 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:33:00,899 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-20 17:33:00,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:33:00,904 INFO L85 PathProgramCache]: Analyzing trace with hash -686149510, now seen corresponding path program 1 times [2024-11-20 17:33:00,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:33:00,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561808795] [2024-11-20 17:33:00,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:33:00,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:33:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:33:01,182 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 17:33:01,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:33:01,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561808795] [2024-11-20 17:33:01,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561808795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:33:01,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:33:01,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:33:01,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437770185] [2024-11-20 17:33:01,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:33:01,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:33:01,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:33:01,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:33:01,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:33:01,230 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 39 [2024-11-20 17:33:01,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 17:33:01,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:33:01,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 39 [2024-11-20 17:33:01,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:33:01,367 INFO L124 PetriNetUnfolderBase]: 56/188 cut-off events. [2024-11-20 17:33:01,368 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:33:01,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 188 events. 56/188 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 750 event pairs, 55 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 309. Up to 131 conditions per place. [2024-11-20 17:33:01,373 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 19 selfloop transitions, 2 changer transitions 0/39 dead transitions. [2024-11-20 17:33:01,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 39 transitions, 123 flow [2024-11-20 17:33:01,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:33:01,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:33:01,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 79 transitions. [2024-11-20 17:33:01,387 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6752136752136753 [2024-11-20 17:33:01,389 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 79 flow. Second operand 3 states and 79 transitions. [2024-11-20 17:33:01,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 39 transitions, 123 flow [2024-11-20 17:33:01,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 39 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:33:01,395 INFO L231 Difference]: Finished difference. Result has 43 places, 39 transitions, 90 flow [2024-11-20 17:33:01,398 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=43, PETRI_TRANSITIONS=39} [2024-11-20 17:33:01,402 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2024-11-20 17:33:01,402 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 39 transitions, 90 flow [2024-11-20 17:33:01,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 17:33:01,403 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:33:01,403 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:33:01,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 17:33:01,404 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-20 17:33:01,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:33:01,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1130316652, now seen corresponding path program 1 times [2024-11-20 17:33:01,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:33:01,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277640795] [2024-11-20 17:33:01,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:33:01,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:33:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:33:01,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:33:01,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:33:01,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277640795] [2024-11-20 17:33:01,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277640795] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:33:01,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547262611] [2024-11-20 17:33:01,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:33:01,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:33:01,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:33:01,564 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:33:01,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 17:33:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:33:01,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 17:33:01,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:33:01,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:33:01,710 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:33:01,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:33:01,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547262611] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:33:01,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:33:01,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-20 17:33:01,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042937437] [2024-11-20 17:33:01,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:33:01,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 17:33:01,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:33:01,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 17:33:01,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-20 17:33:01,739 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 39 [2024-11-20 17:33:01,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 39 transitions, 90 flow. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 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 17:33:01,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:33:01,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 39 [2024-11-20 17:33:01,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:33:01,872 INFO L124 PetriNetUnfolderBase]: 56/191 cut-off events. [2024-11-20 17:33:01,872 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:33:01,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 191 events. 56/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 751 event pairs, 55 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 328. Up to 131 conditions per place. [2024-11-20 17:33:01,878 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 19 selfloop transitions, 5 changer transitions 0/42 dead transitions. [2024-11-20 17:33:01,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 42 transitions, 150 flow [2024-11-20 17:33:01,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:33:01,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 17:33:01,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 141 transitions. [2024-11-20 17:33:01,882 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6025641025641025 [2024-11-20 17:33:01,882 INFO L175 Difference]: Start difference. First operand has 43 places, 39 transitions, 90 flow. Second operand 6 states and 141 transitions. [2024-11-20 17:33:01,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 42 transitions, 150 flow [2024-11-20 17:33:01,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 42 transitions, 146 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-20 17:33:01,884 INFO L231 Difference]: Finished difference. Result has 50 places, 42 transitions, 122 flow [2024-11-20 17:33:01,886 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=122, PETRI_PLACES=50, PETRI_TRANSITIONS=42} [2024-11-20 17:33:01,887 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 9 predicate places. [2024-11-20 17:33:01,887 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 42 transitions, 122 flow [2024-11-20 17:33:01,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 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 17:33:01,887 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:33:01,887 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:33:01,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 17:33:02,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:33:02,088 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-20 17:33:02,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:33:02,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1248421626, now seen corresponding path program 2 times [2024-11-20 17:33:02,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:33:02,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108794497] [2024-11-20 17:33:02,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:33:02,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:33:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:33:02,221 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-20 17:33:02,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:33:02,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108794497] [2024-11-20 17:33:02,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108794497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:33:02,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:33:02,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:33:02,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990052937] [2024-11-20 17:33:02,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:33:02,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:33:02,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:33:02,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:33:02,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:33:02,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 39 [2024-11-20 17:33:02,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 42 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 17:33:02,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:33:02,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 39 [2024-11-20 17:33:02,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:33:02,335 INFO L124 PetriNetUnfolderBase]: 56/173 cut-off events. [2024-11-20 17:33:02,336 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 17:33:02,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 173 events. 56/173 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 616 event pairs, 55 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 301. Up to 134 conditions per place. [2024-11-20 17:33:02,338 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 23 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2024-11-20 17:33:02,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 36 transitions, 158 flow [2024-11-20 17:33:02,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:33:02,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:33:02,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2024-11-20 17:33:02,341 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-11-20 17:33:02,341 INFO L175 Difference]: Start difference. First operand has 50 places, 42 transitions, 122 flow. Second operand 3 states and 65 transitions. [2024-11-20 17:33:02,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 36 transitions, 158 flow [2024-11-20 17:33:02,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 144 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-20 17:33:02,343 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 98 flow [2024-11-20 17:33:02,344 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2024-11-20 17:33:02,346 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places. [2024-11-20 17:33:02,346 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 98 flow [2024-11-20 17:33:02,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 17:33:02,347 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:33:02,347 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:33:02,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 17:33:02,347 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-20 17:33:02,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:33:02,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1248421627, now seen corresponding path program 1 times [2024-11-20 17:33:02,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:33:02,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021722894] [2024-11-20 17:33:02,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:33:02,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:33:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:33:02,446 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:33:02,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:33:02,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021722894] [2024-11-20 17:33:02,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021722894] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:33:02,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536999009] [2024-11-20 17:33:02,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:33:02,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:33:02,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:33:02,451 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:33:02,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 17:33:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:33:02,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 17:33:02,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:33:02,580 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:33:02,581 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:33:02,644 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:33:02,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536999009] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:33:02,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:33:02,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-20 17:33:02,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709137909] [2024-11-20 17:33:02,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:33:02,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 17:33:02,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:33:02,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 17:33:02,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-20 17:33:02,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 39 [2024-11-20 17:33:02,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 98 flow. Second operand has 13 states, 13 states have (on average 20.23076923076923) internal successors, (263), 13 states have internal predecessors, (263), 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 17:33:02,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:33:02,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 39 [2024-11-20 17:33:02,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:33:02,770 INFO L124 PetriNetUnfolderBase]: 56/179 cut-off events. [2024-11-20 17:33:02,770 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-11-20 17:33:02,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 179 events. 56/179 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 614 event pairs, 55 based on Foata normal form. 6/182 useless extension candidates. Maximal degree in co-relation 341. Up to 131 conditions per place. [2024-11-20 17:33:02,773 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 19 selfloop transitions, 11 changer transitions 0/42 dead transitions. [2024-11-20 17:33:02,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 42 transitions, 194 flow [2024-11-20 17:33:02,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 17:33:02,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-20 17:33:02,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 264 transitions. [2024-11-20 17:33:02,775 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2024-11-20 17:33:02,776 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 98 flow. Second operand 12 states and 264 transitions. [2024-11-20 17:33:02,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 42 transitions, 194 flow [2024-11-20 17:33:02,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 42 transitions, 193 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:33:02,778 INFO L231 Difference]: Finished difference. Result has 61 places, 42 transitions, 181 flow [2024-11-20 17:33:02,778 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=181, PETRI_PLACES=61, PETRI_TRANSITIONS=42} [2024-11-20 17:33:02,781 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 20 predicate places. [2024-11-20 17:33:02,782 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 42 transitions, 181 flow [2024-11-20 17:33:02,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 20.23076923076923) internal successors, (263), 13 states have internal predecessors, (263), 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 17:33:02,782 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:33:02,782 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:33:02,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 17:33:02,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-20 17:33:02,987 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-20 17:33:02,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:33:02,987 INFO L85 PathProgramCache]: Analyzing trace with hash -470572869, now seen corresponding path program 2 times [2024-11-20 17:33:02,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:33:02,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100589186] [2024-11-20 17:33:02,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:33:02,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:33:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:33:03,114 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-20 17:33:03,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:33:03,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100589186] [2024-11-20 17:33:03,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100589186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:33:03,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:33:03,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:33:03,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63478855] [2024-11-20 17:33:03,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:33:03,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:33:03,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:33:03,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:33:03,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:33:03,138 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 39 [2024-11-20 17:33:03,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 42 transitions, 181 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 17:33:03,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:33:03,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 39 [2024-11-20 17:33:03,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:33:03,193 INFO L124 PetriNetUnfolderBase]: 56/161 cut-off events. [2024-11-20 17:33:03,194 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-20 17:33:03,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 161 events. 56/161 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 493 event pairs, 55 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 346. Up to 140 conditions per place. [2024-11-20 17:33:03,195 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 28 selfloop transitions, 1 changer transitions 1/36 dead transitions. [2024-11-20 17:33:03,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 36 transitions, 229 flow [2024-11-20 17:33:03,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:33:03,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:33:03,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2024-11-20 17:33:03,197 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-11-20 17:33:03,197 INFO L175 Difference]: Start difference. First operand has 61 places, 42 transitions, 181 flow. Second operand 3 states and 65 transitions. [2024-11-20 17:33:03,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 36 transitions, 229 flow [2024-11-20 17:33:03,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 36 transitions, 181 flow, removed 19 selfloop flow, removed 5 redundant places. [2024-11-20 17:33:03,204 INFO L231 Difference]: Finished difference. Result has 52 places, 35 transitions, 121 flow [2024-11-20 17:33:03,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=52, PETRI_TRANSITIONS=35} [2024-11-20 17:33:03,205 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 11 predicate places. [2024-11-20 17:33:03,206 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 35 transitions, 121 flow [2024-11-20 17:33:03,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 17:33:03,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:33:03,207 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:33:03,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 17:33:03,207 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-20 17:33:03,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:33:03,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1930826471, now seen corresponding path program 1 times [2024-11-20 17:33:03,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:33:03,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614633583] [2024-11-20 17:33:03,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:33:03,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:33:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:33:03,281 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-20 17:33:03,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:33:03,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614633583] [2024-11-20 17:33:03,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614633583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:33:03,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:33:03,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:33:03,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054521663] [2024-11-20 17:33:03,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:33:03,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:33:03,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:33:03,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:33:03,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:33:03,295 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 39 [2024-11-20 17:33:03,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 35 transitions, 121 flow. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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) [2024-11-20 17:33:03,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:33:03,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 39 [2024-11-20 17:33:03,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:33:03,338 INFO L124 PetriNetUnfolderBase]: 51/144 cut-off events. [2024-11-20 17:33:03,339 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-11-20 17:33:03,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 144 events. 51/144 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 424 event pairs, 50 based on Foata normal form. 6/147 useless extension candidates. Maximal degree in co-relation 295. Up to 129 conditions per place. [2024-11-20 17:33:03,340 INFO L140 encePairwiseOnDemand]: 37/39 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2024-11-20 17:33:03,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 34 transitions, 177 flow [2024-11-20 17:33:03,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:33:03,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:33:03,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2024-11-20 17:33:03,342 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6324786324786325 [2024-11-20 17:33:03,342 INFO L175 Difference]: Start difference. First operand has 52 places, 35 transitions, 121 flow. Second operand 3 states and 74 transitions. [2024-11-20 17:33:03,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 34 transitions, 177 flow [2024-11-20 17:33:03,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 34 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:33:03,346 INFO L231 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2024-11-20 17:33:03,346 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=51, PETRI_TRANSITIONS=0} [2024-11-20 17:33:03,347 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 10 predicate places. [2024-11-20 17:33:03,347 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 0 transitions, 0 flow [2024-11-20 17:33:03,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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) [2024-11-20 17:33:03,350 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2024-11-20 17:33:03,350 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 18 remaining) [2024-11-20 17:33:03,350 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2024-11-20 17:33:03,351 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2024-11-20 17:33:03,351 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2024-11-20 17:33:03,351 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2024-11-20 17:33:03,351 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 18 remaining) [2024-11-20 17:33:03,351 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 18 remaining) [2024-11-20 17:33:03,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (9 of 18 remaining) [2024-11-20 17:33:03,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2024-11-20 17:33:03,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 18 remaining) [2024-11-20 17:33:03,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2024-11-20 17:33:03,353 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2024-11-20 17:33:03,353 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2024-11-20 17:33:03,353 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2024-11-20 17:33:03,353 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2024-11-20 17:33:03,353 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 18 remaining) [2024-11-20 17:33:03,354 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 18 remaining) [2024-11-20 17:33:03,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 17:33:03,354 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2024-11-20 17:33:03,359 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 17:33:03,360 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 17:33:03,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:33:03 BasicIcfg [2024-11-20 17:33:03,365 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 17:33:03,365 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 17:33:03,366 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 17:33:03,366 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 17:33:03,366 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:33:00" (3/4) ... [2024-11-20 17:33:03,368 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 17:33:03,372 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-20 17:33:03,376 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2024-11-20 17:33:03,377 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-20 17:33:03,377 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-20 17:33:03,377 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-20 17:33:03,460 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 17:33:03,460 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 17:33:03,460 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 17:33:03,461 INFO L158 Benchmark]: Toolchain (without parser) took 4319.93ms. Allocated memory was 151.0MB in the beginning and 186.6MB in the end (delta: 35.7MB). Free memory was 90.9MB in the beginning and 49.1MB in the end (delta: 41.8MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. [2024-11-20 17:33:03,461 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory is still 50.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:33:03,461 INFO L158 Benchmark]: CACSL2BoogieTranslator took 619.03ms. Allocated memory is still 151.0MB. Free memory was 90.9MB in the beginning and 110.9MB in the end (delta: -20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-20 17:33:03,462 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.87ms. Allocated memory is still 151.0MB. Free memory was 110.9MB in the beginning and 108.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 17:33:03,462 INFO L158 Benchmark]: Boogie Preprocessor took 65.31ms. Allocated memory is still 151.0MB. Free memory was 108.1MB in the beginning and 106.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 17:33:03,462 INFO L158 Benchmark]: RCFGBuilder took 836.02ms. Allocated memory was 151.0MB in the beginning and 186.6MB in the end (delta: 35.7MB). Free memory was 106.0MB in the beginning and 114.1MB in the end (delta: -8.1MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB. [2024-11-20 17:33:03,462 INFO L158 Benchmark]: TraceAbstraction took 2636.57ms. Allocated memory is still 186.6MB. Free memory was 113.1MB in the beginning and 54.3MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-20 17:33:03,463 INFO L158 Benchmark]: Witness Printer took 95.10ms. Allocated memory is still 186.6MB. Free memory was 54.3MB in the beginning and 49.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-20 17:33:03,464 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory is still 50.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 619.03ms. Allocated memory is still 151.0MB. Free memory was 90.9MB in the beginning and 110.9MB in the end (delta: -20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.87ms. Allocated memory is still 151.0MB. Free memory was 110.9MB in the beginning and 108.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.31ms. Allocated memory is still 151.0MB. Free memory was 108.1MB in the beginning and 106.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 836.02ms. Allocated memory was 151.0MB in the beginning and 186.6MB in the end (delta: 35.7MB). Free memory was 106.0MB in the beginning and 114.1MB in the end (delta: -8.1MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2636.57ms. Allocated memory is still 186.6MB. Free memory was 113.1MB in the beginning and 54.3MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Witness Printer took 95.10ms. Allocated memory is still 186.6MB. Free memory was 54.3MB in the beginning and 49.1MB 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: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 687]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 52 locations, 18 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: 2.5s, OverallIterations: 6, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 120 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 349 IncrementalHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 20 mSDtfsCounter, 349 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=181occurred in iteration=4, InterpolantAutomatonStates: 30, 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, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 433 SizeOfPredicates, 0 NumberOfNonLiveVariables, 381 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 120/153 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 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-20 17:33:03,492 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