./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaB14.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaB14.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 07f4699c371f295a25887a3f67dc54332a57ae32b5b342f10fdc7ddcf36f265e .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:52:21,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:52:21,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:52:21,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:52:21,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:52:21,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:52:21,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:52:21,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:52:21,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:52:21,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:52:21,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:52:21,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:52:21,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:52:21,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:52:21,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:52:21,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:52:21,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:52:21,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:52:21,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:52:21,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:52:21,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:52:21,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:52:21,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:52:21,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:52:21,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:52:21,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:52:21,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:52:21,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:52:21,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:52:21,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:52:21,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:52:21,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:52:21,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:52:21,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:52:21,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:52:21,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:52:21,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:52:21,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:52:21,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:52:21,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:52:21,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:52:21,921 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 23:52:21,976 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:52:21,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:52:21,977 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:52:21,978 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:52:21,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:52:21,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:52:21,980 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:52:21,980 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:52:21,981 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:52:21,981 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:52:21,982 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:52:21,983 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:52:21,983 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:52:21,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:52:21,984 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:52:21,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:52:21,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:52:21,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:52:21,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:52:21,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:52:21,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:52:21,986 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:52:21,986 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:52:21,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:52:21,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:52:21,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:52:21,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:52:21,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:52:21,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:52:21,991 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:52:21,992 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07f4699c371f295a25887a3f67dc54332a57ae32b5b342f10fdc7ddcf36f265e [2021-10-28 23:52:22,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:52:22,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:52:22,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:52:22,389 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:52:22,390 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:52:22,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-restricted-15/PastaB14.c [2021-10-28 23:52:22,493 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/data/2f3686a71/4482266c664f44628f161b17b3d18e5a/FLAG92ce79a13 [2021-10-28 23:52:23,063 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:52:23,064 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/sv-benchmarks/c/termination-restricted-15/PastaB14.c [2021-10-28 23:52:23,072 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/data/2f3686a71/4482266c664f44628f161b17b3d18e5a/FLAG92ce79a13 [2021-10-28 23:52:23,429 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/data/2f3686a71/4482266c664f44628f161b17b3d18e5a [2021-10-28 23:52:23,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:52:23,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:52:23,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:52:23,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:52:23,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:52:23,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:52:23" (1/1) ... [2021-10-28 23:52:23,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22c2729d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:23, skipping insertion in model container [2021-10-28 23:52:23,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:52:23" (1/1) ... [2021-10-28 23:52:23,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:52:23,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:52:23,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:52:23,671 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:52:23,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:52:23,704 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:52:23,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:23 WrapperNode [2021-10-28 23:52:23,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:52:23,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:52:23,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:52:23,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:52:23,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:23" (1/1) ... [2021-10-28 23:52:23,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:23" (1/1) ... [2021-10-28 23:52:23,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:52:23,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:52:23,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:52:23,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:52:23,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:23" (1/1) ... [2021-10-28 23:52:23,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:23" (1/1) ... [2021-10-28 23:52:23,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:23" (1/1) ... [2021-10-28 23:52:23,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:23" (1/1) ... [2021-10-28 23:52:23,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:23" (1/1) ... [2021-10-28 23:52:23,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:23" (1/1) ... [2021-10-28 23:52:23,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:23" (1/1) ... [2021-10-28 23:52:23,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:52:23,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:52:23,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:52:23,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:52:23,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:23" (1/1) ... [2021-10-28 23:52:23,773 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:52:23,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:52:23,800 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:52:23,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:52:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:52:23,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:52:24,021 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:52:24,021 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 23:52:24,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:52:24 BoogieIcfgContainer [2021-10-28 23:52:24,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:52:24,025 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:52:24,025 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:52:24,030 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:52:24,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:52:24,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:52:23" (1/3) ... [2021-10-28 23:52:24,033 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30ad5d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:52:24, skipping insertion in model container [2021-10-28 23:52:24,033 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:52:24,033 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:52:23" (2/3) ... [2021-10-28 23:52:24,034 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30ad5d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:52:24, skipping insertion in model container [2021-10-28 23:52:24,034 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:52:24,034 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:52:24" (3/3) ... [2021-10-28 23:52:24,036 INFO L389 chiAutomizerObserver]: Analyzing ICFG PastaB14.c [2021-10-28 23:52:24,095 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:52:24,096 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:52:24,096 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:52:24,096 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:52:24,096 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:52:24,096 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:52:24,097 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:52:24,097 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:52:24,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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) [2021-10-28 23:52:24,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:52:24,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:52:24,130 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:52:24,135 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 23:52:24,135 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:52:24,136 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:52:24,136 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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) [2021-10-28 23:52:24,137 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:52:24,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:52:24,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:52:24,138 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 23:52:24,138 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:52:24,147 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 7#L12-3true [2021-10-28 23:52:24,147 INFO L793 eck$LassoCheckResult]: Loop: 7#L12-3true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 3#L12-2true assume !(main_~y~0 > 0); 7#L12-3true [2021-10-28 23:52:24,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:52:24,155 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-28 23:52:24,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:52:24,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343491394] [2021-10-28 23:52:24,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:52:24,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:52:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:52:24,257 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:52:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:52:24,281 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:52:24,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:52:24,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2021-10-28 23:52:24,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:52:24,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563881] [2021-10-28 23:52:24,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:52:24,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:52:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:52:24,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:52:24,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:52:24,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563881] [2021-10-28 23:52:24,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563881] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:52:24,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:52:24,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-28 23:52:24,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535585401] [2021-10-28 23:52:24,375 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:52:24,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:52:24,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:52:24,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:52:24,398 INFO L87 Difference]: Start difference. First operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-10-28 23:52:24,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:52:24,418 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2021-10-28 23:52:24,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:52:24,421 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2021-10-28 23:52:24,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:52:24,426 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 5 transitions. [2021-10-28 23:52:24,427 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-28 23:52:24,428 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-28 23:52:24,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2021-10-28 23:52:24,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:52:24,429 INFO L681 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2021-10-28 23:52:24,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2021-10-28 23:52:24,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2021-10-28 23:52:24,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-10-28 23:52:24,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2021-10-28 23:52:24,460 INFO L704 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2021-10-28 23:52:24,460 INFO L587 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2021-10-28 23:52:24,460 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:52:24,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2021-10-28 23:52:24,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:52:24,461 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:52:24,461 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:52:24,462 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 23:52:24,462 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:52:24,462 INFO L791 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 27#L12-3 [2021-10-28 23:52:24,462 INFO L793 eck$LassoCheckResult]: Loop: 27#L12-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 24#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 25#L12-2 assume !(main_~y~0 > 0); 27#L12-3 [2021-10-28 23:52:24,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:52:24,463 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2021-10-28 23:52:24,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:52:24,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232076510] [2021-10-28 23:52:24,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:52:24,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:52:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:52:24,471 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:52:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:52:24,477 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:52:24,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:52:24,478 INFO L85 PathProgramCache]: Analyzing trace with hash 40007, now seen corresponding path program 1 times [2021-10-28 23:52:24,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:52:24,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261191719] [2021-10-28 23:52:24,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:52:24,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:52:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:52:24,489 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:52:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:52:24,498 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:52:24,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:52:24,499 INFO L85 PathProgramCache]: Analyzing trace with hash 963528, now seen corresponding path program 1 times [2021-10-28 23:52:24,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:52:24,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205400765] [2021-10-28 23:52:24,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:52:24,500 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:52:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:52:24,510 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:52:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:52:24,520 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:52:24,627 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:52:24,628 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:52:24,628 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:52:24,628 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:52:24,628 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:52:24,628 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:52:24,628 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:52:24,629 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:52:24,629 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration2_Loop [2021-10-28 23:52:24,629 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:52:24,629 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:52:24,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:52:24,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:52:24,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:52:24,842 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:52:24,843 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:52:24,845 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:52:24,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:52:24,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:52:24,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:52:24,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:52:24,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:52:24,891 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:52:24,891 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:52:24,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:52:24,934 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:52:24,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:52:24,936 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:52:24,944 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:52:24,945 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:52:24,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:52:24,978 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:52:24,978 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:52:25,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:52:25,015 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:52:25,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:52:25,016 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:52:25,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:52:25,021 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:52:25,021 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:52:25,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:52:25,068 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:52:25,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:52:25,069 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:52:25,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:52:25,072 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:52:25,072 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:52:25,130 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:52:25,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:52:25,134 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:52:25,134 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:52:25,134 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:52:25,134 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:52:25,134 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:52:25,135 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:52:25,135 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:52:25,135 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:52:25,135 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration2_Loop [2021-10-28 23:52:25,135 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:52:25,135 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:52:25,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:52:25,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:52:25,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:52:25,272 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:52:25,277 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:52:25,279 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:52:25,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:52:25,280 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:52:25,286 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:52:25,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:52:25,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:52:25,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:52:25,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:52:25,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:52:25,306 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:52:25,306 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:52:25,346 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:52:25,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:52:25,386 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:52:25,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:52:25,388 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:52:25,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:52:25,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:52:25,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:52:25,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:52:25,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:52:25,416 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:52:25,416 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:52:25,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:52:25,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:52:25,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:52:25,474 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:52:25,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:52:25,475 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:52:25,482 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:52:25,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:52:25,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:52:25,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:52:25,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:52:25,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:52:25,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:52:25,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:52:25,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:52:25,521 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:52:25,527 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:52:25,527 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:52:25,529 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:52:25,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:52:25,533 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:52:25,559 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:52:25,559 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:52:25,559 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:52:25,560 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 23:52:25,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:52:25,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:52:25,588 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:52:25,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:52:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:52:25,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:52:25,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:52:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:52:25,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:52:25,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:52:25,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:52:25,695 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:52:25,696 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-28 23:52:25,752 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) Result 8 states and 9 transitions. Complement of second has 6 states. [2021-10-28 23:52:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:52:25,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-28 23:52:25,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-10-28 23:52:25,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 1 letters. Loop has 3 letters. [2021-10-28 23:52:25,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:52:25,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 4 letters. Loop has 3 letters. [2021-10-28 23:52:25,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:52:25,757 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 1 letters. Loop has 6 letters. [2021-10-28 23:52:25,757 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:52:25,757 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2021-10-28 23:52:25,758 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:52:25,758 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2021-10-28 23:52:25,759 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:52:25,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:52:25,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:52:25,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:52:25,759 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:52:25,759 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:52:25,759 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:52:25,760 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:52:25,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:52:25,760 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:52:25,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:52:25,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:52:25 BoogieIcfgContainer [2021-10-28 23:52:25,767 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:52:25,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:52:25,768 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:52:25,768 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:52:25,769 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:52:24" (3/4) ... [2021-10-28 23:52:25,772 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:52:25,772 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:52:25,775 INFO L168 Benchmark]: Toolchain (without parser) took 2339.28 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 57.1 MB in the beginning and 73.7 MB in the end (delta: -16.6 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:52:25,775 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 92.3 MB. Free memory was 62.4 MB in the beginning and 62.3 MB in the end (delta: 28.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:52:25,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.20 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 57.0 MB in the beginning and 98.8 MB in the end (delta: -41.8 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:52:25,777 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.04 ms. Allocated memory is still 121.6 MB. Free memory was 98.8 MB in the beginning and 97.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:52:25,778 INFO L168 Benchmark]: Boogie Preprocessor took 21.98 ms. Allocated memory is still 121.6 MB. Free memory was 97.5 MB in the beginning and 96.7 MB in the end (delta: 833.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:52:25,779 INFO L168 Benchmark]: RCFGBuilder took 264.26 ms. Allocated memory is still 121.6 MB. Free memory was 96.7 MB in the beginning and 88.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:52:25,780 INFO L168 Benchmark]: BuchiAutomizer took 1741.97 ms. Allocated memory is still 121.6 MB. Free memory was 88.7 MB in the beginning and 74.1 MB in the end (delta: 14.6 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:52:25,780 INFO L168 Benchmark]: Witness Printer took 4.73 ms. Allocated memory is still 121.6 MB. Free memory was 74.1 MB in the beginning and 73.7 MB in the end (delta: 398.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:52:25,785 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 92.3 MB. Free memory was 62.4 MB in the beginning and 62.3 MB in the end (delta: 28.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 269.20 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 57.0 MB in the beginning and 98.8 MB in the end (delta: -41.8 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.04 ms. Allocated memory is still 121.6 MB. Free memory was 98.8 MB in the beginning and 97.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.98 ms. Allocated memory is still 121.6 MB. Free memory was 97.5 MB in the beginning and 96.7 MB in the end (delta: 833.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 264.26 ms. Allocated memory is still 121.6 MB. Free memory was 96.7 MB in the beginning and 88.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1741.97 ms. Allocated memory is still 121.6 MB. Free memory was 88.7 MB in the beginning and 74.1 MB in the end (delta: 14.6 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.73 ms. Allocated memory is still 121.6 MB. Free memory was 74.1 MB in the beginning and 73.7 MB in the end (delta: 398.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 3 SDs, 0 SdLazy, 11 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf100 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf91 smp76 dnf100 smp100 tf107 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 67ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:52:25,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:52:26,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e704d2b1-4af1-4d01-8f07-ff70b10d946b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...