./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.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_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/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_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/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_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/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 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:47:52,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:47:52,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:47:52,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:47:52,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:47:52,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:47:52,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:47:52,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:47:52,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:47:52,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:47:52,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:47:52,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:47:52,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:47:52,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:47:52,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:47:52,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:47:52,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:47:52,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:47:52,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:47:52,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:47:52,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:47:52,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:47:52,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:47:52,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:47:52,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:47:52,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:47:52,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:47:52,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:47:52,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:47:52,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:47:52,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:47:52,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:47:52,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:47:52,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:47:52,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:47:52,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:47:52,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:47:52,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:47:52,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:47:52,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:47:52,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:47:52,816 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 23:47:52,877 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:47:52,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:47:52,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:47:52,879 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:47:52,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:47:52,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:47:52,881 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:47:52,882 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:47:52,882 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:47:52,883 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:47:52,883 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:47:52,883 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:47:52,884 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:47:52,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:47:52,885 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:47:52,885 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:47:52,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:47:52,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:47:52,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:47:52,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:47:52,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:47:52,887 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:47:52,888 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:47:52,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:47:52,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:47:52,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:47:52,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:47:52,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:47:52,890 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:47:52,892 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:47:52,892 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_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 [2021-10-28 23:47:53,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:47:53,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:47:53,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:47:53,286 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:47:53,287 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:47:53,288 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2021-10-28 23:47:53,390 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/data/cffc1b97e/3d859da6347c499796f76f6920c8b21f/FLAGca565bb94 [2021-10-28 23:47:53,949 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:47:53,950 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2021-10-28 23:47:53,963 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/data/cffc1b97e/3d859da6347c499796f76f6920c8b21f/FLAGca565bb94 [2021-10-28 23:47:54,311 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/data/cffc1b97e/3d859da6347c499796f76f6920c8b21f [2021-10-28 23:47:54,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:47:54,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:47:54,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:47:54,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:47:54,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:47:54,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:47:54" (1/1) ... [2021-10-28 23:47:54,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f6fcdc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:54, skipping insertion in model container [2021-10-28 23:47:54,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:47:54" (1/1) ... [2021-10-28 23:47:54,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:47:54,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:47:54,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:47:54,536 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:47:54,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:47:54,587 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:47:54,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:54 WrapperNode [2021-10-28 23:47:54,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:47:54,592 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:47:54,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:47:54,593 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:47:54,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:54" (1/1) ... [2021-10-28 23:47:54,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:54" (1/1) ... [2021-10-28 23:47:54,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:47:54,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:47:54,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:47:54,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:47:54,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:54" (1/1) ... [2021-10-28 23:47:54,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:54" (1/1) ... [2021-10-28 23:47:54,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:54" (1/1) ... [2021-10-28 23:47:54,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:54" (1/1) ... [2021-10-28 23:47:54,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:54" (1/1) ... [2021-10-28 23:47:54,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:54" (1/1) ... [2021-10-28 23:47:54,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:54" (1/1) ... [2021-10-28 23:47:54,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:47:54,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:47:54,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:47:54,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:47:54,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:54" (1/1) ... [2021-10-28 23:47:54,711 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:54,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:54,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:54,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:47:54,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:47:54,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:47:55,046 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:47:55,046 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 23:47:55,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:47:55 BoogieIcfgContainer [2021-10-28 23:47:55,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:47:55,049 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:47:55,050 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:47:55,053 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:47:55,054 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:47:55,054 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:47:54" (1/3) ... [2021-10-28 23:47:55,056 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6804d05d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:47:55, skipping insertion in model container [2021-10-28 23:47:55,056 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:47:55,056 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:47:54" (2/3) ... [2021-10-28 23:47:55,057 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6804d05d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:47:55, skipping insertion in model container [2021-10-28 23:47:55,057 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:47:55,057 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:47:55" (3/3) ... [2021-10-28 23:47:55,059 INFO L389 chiAutomizerObserver]: Analyzing ICFG LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2021-10-28 23:47:55,118 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:47:55,119 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:47:55,119 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:47:55,119 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:47:55,119 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:47:55,120 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:47:55,120 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:47:55,120 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:47:55,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 23:47:55,162 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:47:55,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:47:55,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:47:55,171 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:47:55,171 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:47:55,171 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:47:55,172 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 23:47:55,174 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:47:55,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:47:55,174 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:47:55,175 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:47:55,175 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:47:55,184 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 6#L21true assume ((main_~x~0 <= 10000 && main_~x~0 >= -10000) && main_~y~0 <= 10000) && main_~z~0 <= 10000; 8#L22-2true [2021-10-28 23:47:55,184 INFO L793 eck$LassoCheckResult]: Loop: 8#L22-2true assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 5#L24-2true assume !(main_~y~0 < main_~z~0); 9#L24-3true main_~y~0 := main_~x~0 + main_~y~0; 8#L22-2true [2021-10-28 23:47:55,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:47:55,192 INFO L85 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2021-10-28 23:47:55,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:47:55,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794647116] [2021-10-28 23:47:55,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:47:55,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:47:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:47:55,359 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:47:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:47:55,386 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:47:55,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:47:55,390 INFO L85 PathProgramCache]: Analyzing trace with hash 42930, now seen corresponding path program 1 times [2021-10-28 23:47:55,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:47:55,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691850872] [2021-10-28 23:47:55,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:47:55,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:47:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:47:55,406 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:47:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:47:55,416 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:47:55,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:47:55,419 INFO L85 PathProgramCache]: Analyzing trace with hash 29684975, now seen corresponding path program 1 times [2021-10-28 23:47:55,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:47:55,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274782450] [2021-10-28 23:47:55,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:47:55,420 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:47:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:47:55,433 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:47:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:47:55,446 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:47:55,546 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:47:55,546 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:47:55,547 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:47:55,547 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:47:55,547 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:47:55,547 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:55,547 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:47:55,547 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:47:55,548 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration1_Loop [2021-10-28 23:47:55,548 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:47:55,548 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:47:55,571 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 23:47:55,581 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 23:47:55,586 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 23:47:55,755 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:47:55,756 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:47:55,759 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:55,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:55,775 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:55,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:47:55,788 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:47:55,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:47:55,813 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:47:55,813 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 23:47:55,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-28 23:47:55,840 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:55,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:55,845 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:55,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:47:55,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:47:55,847 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:47:55,878 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:47:55,879 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 23:47:55,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:55,911 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:55,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:55,913 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:55,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:47:55,929 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:47:55,929 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:47:55,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:55,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:55,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:55,993 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:55,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:47:55,997 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:47:55,997 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:47:56,261 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:47:56,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-28 23:47:56,268 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:47:56,268 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:47:56,268 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:47:56,269 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:47:56,269 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:47:56,269 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:56,269 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:47:56,269 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:47:56,269 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration1_Loop [2021-10-28 23:47:56,269 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:47:56,270 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:47:56,272 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 23:47:56,279 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 23:47:56,284 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 23:47:56,357 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:47:56,363 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:47:56,365 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:56,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:56,366 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:56,375 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 23:47:56,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:47:56,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:47:56,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:47:56,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:47:56,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:47:56,392 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:47:56,392 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:47:56,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:47:56,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:56,457 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:56,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:56,458 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:56,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:47:56,463 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 23:47:56,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:47:56,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:47:56,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:47:56,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:47:56,479 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:47:56,479 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:47:56,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:47:56,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:56,559 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:56,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:56,563 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:56,570 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 23:47:56,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:47:56,582 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:47:56,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:47:56,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:47:56,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:47:56,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:47:56,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:47:56,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:47:56,598 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:47:56,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:56,641 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 23:47:56,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:56,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:56,642 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:56,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:47:56,644 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 23:47:56,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:47:56,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:47:56,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:47:56,654 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:47:56,662 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-28 23:47:56,663 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-28 23:47:56,680 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:47:56,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:56,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:56,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:56,725 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:56,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:47:56,734 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 23:47:56,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:47:56,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:47:56,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:47:56,747 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:47:56,752 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-28 23:47:56,753 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-28 23:47:56,782 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:47:56,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:56,827 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:56,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:56,830 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:56,842 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 23:47:56,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:47:56,854 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:47:56,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:47:56,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:47:56,855 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:47:56,858 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:47:56,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:47:56,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:47:56,878 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:47:56,888 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 23:47:56,888 INFO L444 ModelExtractionUtils]: 5 out of 9 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:47:56,890 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:56,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:56,892 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:56,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:47:56,898 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:47:56,899 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:47:56,899 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:47:56,900 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0 f1 = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 23:47:56,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:56,932 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:47:56,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:47:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:47:57,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:47:57,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:47:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:47:57,045 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:47:57,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:47:57,465 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 23:47:57,490 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 23:47:57,492 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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, 3 states have (on average 1.6666666666666667) 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 23:47:57,582 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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, 3 states have (on average 1.6666666666666667) 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) Result 34 states and 47 transitions. Complement of second has 8 states. [2021-10-28 23:47:57,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:47:57,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) 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 23:47:57,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2021-10-28 23:47:57,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 2 letters. Loop has 3 letters. [2021-10-28 23:47:57,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:47:57,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-28 23:47:57,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:47:57,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 2 letters. Loop has 6 letters. [2021-10-28 23:47:57,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:47:57,592 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 47 transitions. [2021-10-28 23:47:57,603 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:47:57,608 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 10 states and 14 transitions. [2021-10-28 23:47:57,613 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 23:47:57,613 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 23:47:57,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2021-10-28 23:47:57,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:47:57,651 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2021-10-28 23:47:57,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2021-10-28 23:47:57,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-28 23:47:57,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 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 23:47:57,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2021-10-28 23:47:57,716 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2021-10-28 23:47:57,716 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2021-10-28 23:47:57,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:57,722 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:47:57,723 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 14 transitions. [2021-10-28 23:47:57,724 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:47:57,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:47:57,724 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:47:57,724 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 23:47:57,724 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 23:47:57,725 INFO L791 eck$LassoCheckResult]: Stem: 89#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 90#L21 assume ((main_~x~0 <= 10000 && main_~x~0 >= -10000) && main_~y~0 <= 10000) && main_~z~0 <= 10000; 95#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 91#L24-2 assume !!(main_~y~0 < main_~z~0);main_~x~0 := 1 + main_~x~0;main_~z~0 := main_~z~0 - 1; 92#L24-2 [2021-10-28 23:47:57,725 INFO L793 eck$LassoCheckResult]: Loop: 92#L24-2 assume !!(main_~y~0 < main_~z~0);main_~x~0 := 1 + main_~x~0;main_~z~0 := main_~z~0 - 1; 92#L24-2 [2021-10-28 23:47:57,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:47:57,726 INFO L85 PathProgramCache]: Analyzing trace with hash 957581, now seen corresponding path program 1 times [2021-10-28 23:47:57,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:47:57,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826790374] [2021-10-28 23:47:57,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:47:57,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:47:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:47:57,748 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:47:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:47:57,764 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:47:57,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:47:57,765 INFO L85 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 1 times [2021-10-28 23:47:57,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:47:57,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614047918] [2021-10-28 23:47:57,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:47:57,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:47:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:47:57,772 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:47:57,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:47:57,777 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:47:57,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:47:57,778 INFO L85 PathProgramCache]: Analyzing trace with hash 29685033, now seen corresponding path program 2 times [2021-10-28 23:47:57,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:47:57,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345742223] [2021-10-28 23:47:57,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:47:57,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:47:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:47:57,791 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:47:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:47:57,804 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:47:57,827 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:47:57,827 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:47:57,827 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:47:57,827 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:47:57,828 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:47:57,828 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:57,828 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:47:57,828 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:47:57,828 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration2_Loop [2021-10-28 23:47:57,828 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:47:57,828 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:47:57,830 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 23:47:57,833 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 23:47:57,836 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 23:47:57,843 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 23:47:57,901 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:47:57,901 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:47:57,901 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:57,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:57,902 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:57,914 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:47:57,914 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:47:57,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:47:57,936 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:47:57,936 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:47:57,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:57,961 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:57,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:57,962 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:57,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:47:57,966 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:47:57,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:47:57,983 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:47:57,983 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:47:58,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-10-28 23:47:58,008 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:58,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:58,009 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:58,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:47:58,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:47:58,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:47:58,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:58,051 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:58,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:58,052 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:58,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:47:58,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:47:58,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:47:58,354 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:47:58,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-10-28 23:47:58,361 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:47:58,361 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:47:58,361 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:47:58,361 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:47:58,361 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:47:58,361 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:58,361 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:47:58,361 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:47:58,362 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration2_Loop [2021-10-28 23:47:58,362 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:47:58,362 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:47:58,364 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 23:47:58,369 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 23:47:58,373 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 23:47:58,382 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 23:47:58,446 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:47:58,446 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:47:58,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:58,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:58,448 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:58,455 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 23:47:58,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:47:58,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:47:58,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:47:58,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:47:58,471 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:47:58,471 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:47:58,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:47:58,494 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:47:58,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:58,543 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:58,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:58,544 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:58,552 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 23:47:58,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:47:58,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:47:58,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:47:58,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:47:58,570 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:47:58,571 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:47:58,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:47:58,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:47:58,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:58,630 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:58,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:58,631 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:58,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:47:58,637 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 23:47:58,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:47:58,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:47:58,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:47:58,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:47:58,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:47:58,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:47:58,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:47:58,674 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:47:58,680 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 23:47:58,680 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:47:58,681 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:58,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:58,682 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:58,696 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:47:58,696 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:47:58,696 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:47:58,696 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2021-10-28 23:47:58,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:47:58,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:58,735 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:47:58,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:47:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:47:58,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:47:58,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:47:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:47:58,788 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:47:58,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:47:58,789 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 23:47:58,790 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 23:47:58,790 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 23:47:58,806 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) Result 17 states and 28 transitions. Complement of second has 6 states. [2021-10-28 23:47:58,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:47:58,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 23:47:58,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-10-28 23:47:58,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 1 letters. [2021-10-28 23:47:58,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:47:58,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 1 letters. [2021-10-28 23:47:58,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:47:58,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 23:47:58,810 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:47:58,810 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 28 transitions. [2021-10-28 23:47:58,811 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:47:58,812 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 13 states and 19 transitions. [2021-10-28 23:47:58,812 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-28 23:47:58,813 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-28 23:47:58,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2021-10-28 23:47:58,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:47:58,813 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2021-10-28 23:47:58,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2021-10-28 23:47:58,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-10-28 23:47:58,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 11 states have internal predecessors, (18), 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 23:47:58,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 18 transitions. [2021-10-28 23:47:58,816 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2021-10-28 23:47:58,816 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2021-10-28 23:47:58,816 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:47:58,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 18 transitions. [2021-10-28 23:47:58,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:47:58,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:47:58,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:47:58,819 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 23:47:58,819 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:47:58,819 INFO L791 eck$LassoCheckResult]: Stem: 152#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 153#L21 assume ((main_~x~0 <= 10000 && main_~x~0 >= -10000) && main_~y~0 <= 10000) && main_~z~0 <= 10000; 157#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 160#L24-2 assume !!(main_~y~0 < main_~z~0);main_~x~0 := 1 + main_~x~0;main_~z~0 := main_~z~0 - 1; 163#L24-2 assume !(main_~y~0 < main_~z~0); 155#L24-3 [2021-10-28 23:47:58,819 INFO L793 eck$LassoCheckResult]: Loop: 155#L24-3 main_~y~0 := main_~x~0 + main_~y~0; 158#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 154#L24-2 assume !(main_~y~0 < main_~z~0); 155#L24-3 [2021-10-28 23:47:58,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:47:58,820 INFO L85 PathProgramCache]: Analyzing trace with hash 29685031, now seen corresponding path program 1 times [2021-10-28 23:47:58,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:47:58,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740109393] [2021-10-28 23:47:58,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:47:58,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:47:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:47:58,830 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:47:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:47:58,840 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:47:58,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:47:58,841 INFO L85 PathProgramCache]: Analyzing trace with hash 55200, now seen corresponding path program 2 times [2021-10-28 23:47:58,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:47:58,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403352973] [2021-10-28 23:47:58,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:47:58,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:47:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:47:58,848 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:47:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:47:58,853 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:47:58,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:47:58,854 INFO L85 PathProgramCache]: Analyzing trace with hash -416479046, now seen corresponding path program 1 times [2021-10-28 23:47:58,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:47:58,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985014253] [2021-10-28 23:47:58,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:47:58,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:47:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:47:58,866 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:47:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:47:58,877 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:47:58,924 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:47:58,925 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:47:58,925 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:47:58,925 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:47:58,925 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:47:58,925 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:58,926 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:47:58,926 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:47:58,926 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration3_Loop [2021-10-28 23:47:58,926 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:47:58,926 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:47:58,928 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 23:47:58,931 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 23:47:58,949 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 23:47:59,010 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:47:59,010 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:47:59,011 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:59,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:59,014 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:59,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:47:59,035 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:47:59,035 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:47:59,053 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:47:59,053 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:47:59,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:59,082 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:59,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:59,083 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:59,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:47:59,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:47:59,088 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:47:59,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:59,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:59,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:59,149 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:59,152 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:47:59,152 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:47:59,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:47:59,426 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:47:59,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-28 23:47:59,429 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:47:59,429 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:47:59,429 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:47:59,429 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:47:59,429 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:47:59,429 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:59,429 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:47:59,429 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:47:59,429 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration3_Loop [2021-10-28 23:47:59,430 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:47:59,430 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:47:59,431 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 23:47:59,451 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 23:47:59,455 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 23:47:59,507 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:47:59,508 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:47:59,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:59,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:59,509 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:59,519 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 23:47:59,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:47:59,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:47:59,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:47:59,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:47:59,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:47:59,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:47:59,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:47:59,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:47:59,554 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:47:59,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:59,629 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:59,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:59,631 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:59,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:59,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:47:59,644 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 23:47:59,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:47:59,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:47:59,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:47:59,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:47:59,658 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:47:59,658 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:47:59,669 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:47:59,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-28 23:47:59,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:59,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:59,701 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:59,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 23:47:59,703 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 23:47:59,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:47:59,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:47:59,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:47:59,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:47:59,727 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:47:59,727 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:47:59,740 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:47:59,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-10-28 23:47:59,785 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 23:47:59,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:59,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:59,787 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:59,791 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 23:47:59,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:47:59,802 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:47:59,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:47:59,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:47:59,803 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:47:59,805 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:47:59,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:47:59,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:47:59,821 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:47:59,843 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-10-28 23:47:59,843 INFO L444 ModelExtractionUtils]: 3 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-10-28 23:47:59,843 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:47:59,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:47:59,850 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:47:59,855 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:47:59,855 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:47:59,855 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:47:59,855 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0 f1 = 1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-28 23:47:59,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 23:47:59,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 23:47:59,902 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:47:59,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:47:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:47:59,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:47:59,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:47:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:47:59,963 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:47:59,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:00,233 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 23:48:00,234 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 23:48:00,235 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 23:48:00,274 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 30 states and 45 transitions. Complement of second has 8 states. [2021-10-28 23:48:00,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:48:00,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 23:48:00,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2021-10-28 23:48:00,276 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-28 23:48:00,277 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:48:00,277 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 3 letters. [2021-10-28 23:48:00,277 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:48:00,277 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 5 letters. Loop has 6 letters. [2021-10-28 23:48:00,278 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:48:00,278 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 45 transitions. [2021-10-28 23:48:00,287 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:48:00,290 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 22 states and 33 transitions. [2021-10-28 23:48:00,291 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-28 23:48:00,291 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-28 23:48:00,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 33 transitions. [2021-10-28 23:48:00,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:48:00,292 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 33 transitions. [2021-10-28 23:48:00,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 33 transitions. [2021-10-28 23:48:00,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2021-10-28 23:48:00,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 17 states have internal predecessors, (26), 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 23:48:00,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 26 transitions. [2021-10-28 23:48:00,300 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2021-10-28 23:48:00,301 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2021-10-28 23:48:00,301 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:48:00,301 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 26 transitions. [2021-10-28 23:48:00,305 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:48:00,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:48:00,306 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:48:00,307 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-10-28 23:48:00,307 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 23:48:00,308 INFO L791 eck$LassoCheckResult]: Stem: 247#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 248#L21 assume ((main_~x~0 <= 10000 && main_~x~0 >= -10000) && main_~y~0 <= 10000) && main_~z~0 <= 10000; 253#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 263#L24-2 assume !!(main_~y~0 < main_~z~0);main_~x~0 := 1 + main_~x~0;main_~z~0 := main_~z~0 - 1; 261#L24-2 assume !(main_~y~0 < main_~z~0); 260#L24-3 main_~y~0 := main_~x~0 + main_~y~0; 257#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 259#L24-2 assume !!(main_~y~0 < main_~z~0);main_~x~0 := 1 + main_~x~0;main_~z~0 := main_~z~0 - 1; 258#L24-2 [2021-10-28 23:48:00,308 INFO L793 eck$LassoCheckResult]: Loop: 258#L24-2 assume !!(main_~y~0 < main_~z~0);main_~x~0 := 1 + main_~x~0;main_~z~0 := main_~z~0 - 1; 258#L24-2 [2021-10-28 23:48:00,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:00,310 INFO L85 PathProgramCache]: Analyzing trace with hash -416479044, now seen corresponding path program 2 times [2021-10-28 23:48:00,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:00,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362174471] [2021-10-28 23:48:00,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:00,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:00,336 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:48:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:00,371 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:48:00,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:00,376 INFO L85 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 2 times [2021-10-28 23:48:00,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:00,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234674924] [2021-10-28 23:48:00,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:00,377 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:00,384 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:48:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:00,392 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:48:00,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:00,393 INFO L85 PathProgramCache]: Analyzing trace with hash -25948454, now seen corresponding path program 3 times [2021-10-28 23:48:00,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:00,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669074328] [2021-10-28 23:48:00,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:00,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:00,411 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:48:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:00,441 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:48:00,463 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:48:00,463 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:48:00,463 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:48:00,463 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:48:00,464 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:48:00,464 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:00,464 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:48:00,464 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:48:00,464 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration4_Loop [2021-10-28 23:48:00,464 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:48:00,464 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:48:00,467 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 23:48:00,471 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 23:48:00,477 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 23:48:00,480 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 23:48:00,527 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:48:00,527 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:48:00,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:00,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:00,530 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:00,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:48:00,541 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:48:00,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 23:48:00,563 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:48:00,563 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:48:00,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:00,607 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:00,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:00,608 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:00,611 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:48:00,611 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:48:00,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 23:48:00,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:00,668 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:00,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:00,669 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:00,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 23:48:00,671 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:48:00,671 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:48:00,878 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:48:00,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-28 23:48:00,881 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:48:00,881 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:48:00,881 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:48:00,881 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:48:00,881 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:48:00,881 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:00,881 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:48:00,881 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:48:00,881 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration4_Loop [2021-10-28 23:48:00,881 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:48:00,882 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:48:00,882 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 23:48:00,901 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 23:48:00,905 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 23:48:00,909 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 23:48:00,970 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:48:00,970 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:48:00,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:00,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:01,002 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:01,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:01,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 23:48:01,013 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 23:48:01,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:48:01,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:48:01,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:48:01,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:48:01,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:48:01,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:48:01,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:48:01,026 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:48:01,031 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 23:48:01,032 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:48:01,032 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:01,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:01,046 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:01,048 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:48:01,049 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:48:01,049 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:48:01,049 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~z~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 23:48:01,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 23:48:01,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:01,079 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:48:01,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:01,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:48:01,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:01,158 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:48:01,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:01,159 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 23:48:01,160 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 23:48:01,160 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 23:48:01,172 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 21 states and 30 transitions. Complement of second has 5 states. [2021-10-28 23:48:01,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:48:01,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 23:48:01,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-28 23:48:01,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 1 letters. [2021-10-28 23:48:01,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:48:01,174 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:48:01,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:01,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:48:01,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:01,225 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:48:01,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:01,226 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 23:48:01,227 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 23:48:01,227 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 23:48:01,237 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 21 states and 30 transitions. Complement of second has 5 states. [2021-10-28 23:48:01,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:48:01,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 23:48:01,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-28 23:48:01,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 1 letters. [2021-10-28 23:48:01,239 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:48:01,239 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:48:01,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:01,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:48:01,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:01,291 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:48:01,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:01,292 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 23:48:01,293 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 23:48:01,293 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 23:48:01,306 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 29 states and 45 transitions. Complement of second has 5 states. [2021-10-28 23:48:01,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:48:01,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 23:48:01,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-10-28 23:48:01,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 1 letters. [2021-10-28 23:48:01,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:48:01,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 1 letters. [2021-10-28 23:48:01,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:48:01,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-28 23:48:01,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:48:01,309 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 45 transitions. [2021-10-28 23:48:01,311 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 23:48:01,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 22 states and 31 transitions. [2021-10-28 23:48:01,312 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-28 23:48:01,313 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-10-28 23:48:01,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 31 transitions. [2021-10-28 23:48:01,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:48:01,313 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2021-10-28 23:48:01,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 31 transitions. [2021-10-28 23:48:01,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2021-10-28 23:48:01,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 17 states have internal predecessors, (26), 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 23:48:01,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 26 transitions. [2021-10-28 23:48:01,317 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2021-10-28 23:48:01,317 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2021-10-28 23:48:01,317 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:48:01,317 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 26 transitions. [2021-10-28 23:48:01,318 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 23:48:01,318 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:48:01,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:48:01,319 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-10-28 23:48:01,319 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:48:01,320 INFO L791 eck$LassoCheckResult]: Stem: 447#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 448#L21 assume ((main_~x~0 <= 10000 && main_~x~0 >= -10000) && main_~y~0 <= 10000) && main_~z~0 <= 10000; 453#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 451#L24-2 assume !(main_~y~0 < main_~z~0); 452#L24-3 main_~y~0 := main_~x~0 + main_~y~0; 456#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 449#L24-2 assume !!(main_~y~0 < main_~z~0);main_~x~0 := 1 + main_~x~0;main_~z~0 := main_~z~0 - 1; 450#L24-2 assume !(main_~y~0 < main_~z~0); 454#L24-3 [2021-10-28 23:48:01,320 INFO L793 eck$LassoCheckResult]: Loop: 454#L24-3 main_~y~0 := main_~x~0 + main_~y~0; 455#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 459#L24-2 assume !(main_~y~0 < main_~z~0); 454#L24-3 [2021-10-28 23:48:01,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:01,321 INFO L85 PathProgramCache]: Analyzing trace with hash -418159556, now seen corresponding path program 4 times [2021-10-28 23:48:01,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:01,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677935384] [2021-10-28 23:48:01,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:01,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:01,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:01,331 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:48:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:01,340 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:48:01,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:01,341 INFO L85 PathProgramCache]: Analyzing trace with hash 55200, now seen corresponding path program 3 times [2021-10-28 23:48:01,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:01,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495481005] [2021-10-28 23:48:01,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:01,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:01,347 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:48:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:01,351 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:48:01,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:01,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1986148987, now seen corresponding path program 5 times [2021-10-28 23:48:01,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:01,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600010424] [2021-10-28 23:48:01,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:01,353 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:01,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:01,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600010424] [2021-10-28 23:48:01,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600010424] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:48:01,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866585436] [2021-10-28 23:48:01,474 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:48:01,476 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:01,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:01,477 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:48:01,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-10-28 23:48:01,539 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-10-28 23:48:01,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:48:01,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:48:01,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:01,631 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:01,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866585436] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:48:01,631 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:48:01,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-28 23:48:01,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282185903] [2021-10-28 23:48:01,663 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:48:01,663 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:48:01,664 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:48:01,664 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:48:01,664 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:48:01,664 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:01,664 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:48:01,664 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:48:01,664 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration5_Loop [2021-10-28 23:48:01,664 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:48:01,664 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:48:01,665 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 23:48:01,668 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 23:48:01,671 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 23:48:01,735 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:48:01,735 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:48:01,735 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:01,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:01,737 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:01,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:48:01,746 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:48:01,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 23:48:01,781 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:48:01,781 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:48:01,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:01,826 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:01,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:01,827 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:01,830 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:48:01,830 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:48:01,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 23:48:01,854 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:48:01,854 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:48:01,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:01,899 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:01,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:01,900 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:01,903 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:48:01,903 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:48:01,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 23:48:01,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:01,970 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:01,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:01,971 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:01,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 23:48:01,973 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:48:01,973 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:48:02,248 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:48:02,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-28 23:48:02,251 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:48:02,252 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:48:02,252 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:48:02,252 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:48:02,252 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:48:02,252 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:02,252 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:48:02,252 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:48:02,252 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration5_Loop [2021-10-28 23:48:02,252 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:48:02,252 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:48:02,253 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 23:48:02,261 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 23:48:02,264 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 23:48:02,314 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:48:02,314 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:48:02,315 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:02,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:02,318 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:02,327 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 23:48:02,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:48:02,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:48:02,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:48:02,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:48:02,341 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:48:02,341 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:48:02,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 23:48:02,354 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:48:02,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:02,395 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:02,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:02,398 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:02,408 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 23:48:02,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 23:48:02,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:48:02,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:48:02,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:48:02,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:48:02,421 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:48:02,421 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:48:02,446 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:48:02,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:02,490 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:02,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:02,494 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:02,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 23:48:02,499 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 23:48:02,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:48:02,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:48:02,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:48:02,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:48:02,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:48:02,509 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:48:02,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:48:02,522 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:48:02,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:02,570 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 23:48:02,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:02,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:02,572 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:02,579 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 23:48:02,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:48:02,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:48:02,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:48:02,590 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:48:02,593 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-28 23:48:02,593 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-28 23:48:02,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 23:48:02,606 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:48:02,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:02,651 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:02,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:02,652 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:02,654 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 23:48:02,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:48:02,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:48:02,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:48:02,666 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:48:02,669 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-28 23:48:02,669 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-28 23:48:02,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 23:48:02,698 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:48:02,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:02,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:02,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:02,748 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:02,751 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 23:48:02,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:48:02,763 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:48:02,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:48:02,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:48:02,763 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:48:02,766 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:48:02,766 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:48:02,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 23:48:02,782 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:48:02,790 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-28 23:48:02,790 INFO L444 ModelExtractionUtils]: 3 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-10-28 23:48:02,791 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:02,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:02,793 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:02,794 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:48:02,794 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:48:02,795 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:48:02,795 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0 f1 = 1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 23:48:02,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 23:48:02,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:02,838 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:48:02,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:02,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:48:02,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:02,902 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:48:02,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:03,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:03,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:03,224 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 23:48:03,225 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 23:48:03,226 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 23:48:03,265 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 26 states and 37 transitions. Complement of second has 7 states. [2021-10-28 23:48:03,266 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 23:48:03,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 23:48:03,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2021-10-28 23:48:03,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2021-10-28 23:48:03,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:48:03,268 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:48:03,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:03,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:48:03,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:03,326 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:48:03,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:03,558 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 23:48:03,558 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 23:48:03,559 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 23:48:03,593 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 24 states and 32 transitions. Complement of second has 7 states. [2021-10-28 23:48:03,594 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 23:48:03,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 23:48:03,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-10-28 23:48:03,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 8 letters. Loop has 3 letters. [2021-10-28 23:48:03,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:48:03,595 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:48:03,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:03,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:48:03,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:03,656 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:48:03,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:03,878 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 23:48:03,879 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 23:48:03,879 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 23:48:03,910 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 31 states and 43 transitions. Complement of second has 6 states. [2021-10-28 23:48:03,910 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 23:48:03,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 23:48:03,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-10-28 23:48:03,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 3 letters. [2021-10-28 23:48:03,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:48:03,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 11 letters. Loop has 3 letters. [2021-10-28 23:48:03,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:48:03,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 6 letters. [2021-10-28 23:48:03,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:48:03,941 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 43 transitions. [2021-10-28 23:48:03,942 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 23:48:03,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 24 states and 34 transitions. [2021-10-28 23:48:03,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-28 23:48:03,944 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 23:48:03,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 34 transitions. [2021-10-28 23:48:03,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:48:03,944 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 34 transitions. [2021-10-28 23:48:03,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 34 transitions. [2021-10-28 23:48:03,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2021-10-28 23:48:03,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 states have internal predecessors, (27), 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 23:48:03,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2021-10-28 23:48:03,947 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2021-10-28 23:48:03,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:03,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:48:03,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:48:03,953 INFO L87 Difference]: Start difference. First operand 19 states and 27 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 8 states have internal predecessors, (14), 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 23:48:04,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:04,088 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2021-10-28 23:48:04,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:48:04,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2021-10-28 23:48:04,089 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 23:48:04,090 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 28 transitions. [2021-10-28 23:48:04,090 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-28 23:48:04,090 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 23:48:04,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 28 transitions. [2021-10-28 23:48:04,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:48:04,091 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-10-28 23:48:04,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 28 transitions. [2021-10-28 23:48:04,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2021-10-28 23:48:04,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 17 states have internal predecessors, (25), 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 23:48:04,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2021-10-28 23:48:04,093 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-10-28 23:48:04,093 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-10-28 23:48:04,093 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 23:48:04,093 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2021-10-28 23:48:04,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 23:48:04,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:48:04,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:48:04,095 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-10-28 23:48:04,095 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:48:04,095 INFO L791 eck$LassoCheckResult]: Stem: 778#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 779#L21 assume ((main_~x~0 <= 10000 && main_~x~0 >= -10000) && main_~y~0 <= 10000) && main_~z~0 <= 10000; 783#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 788#L24-2 assume !(main_~y~0 < main_~z~0); 786#L24-3 main_~y~0 := main_~x~0 + main_~y~0; 787#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 790#L24-2 assume !!(main_~y~0 < main_~z~0);main_~x~0 := 1 + main_~x~0;main_~z~0 := main_~z~0 - 1; 792#L24-2 assume !(main_~y~0 < main_~z~0); 784#L24-3 [2021-10-28 23:48:04,095 INFO L793 eck$LassoCheckResult]: Loop: 784#L24-3 main_~y~0 := main_~x~0 + main_~y~0; 785#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 793#L24-2 assume !!(main_~y~0 < main_~z~0);main_~x~0 := 1 + main_~x~0;main_~z~0 := main_~z~0 - 1; 792#L24-2 assume !(main_~y~0 < main_~z~0); 784#L24-3 [2021-10-28 23:48:04,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:04,095 INFO L85 PathProgramCache]: Analyzing trace with hash -418159556, now seen corresponding path program 6 times [2021-10-28 23:48:04,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:04,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949047714] [2021-10-28 23:48:04,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:04,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:04,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:04,109 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:48:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:04,128 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:48:04,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:04,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1711282, now seen corresponding path program 1 times [2021-10-28 23:48:04,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:04,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203398323] [2021-10-28 23:48:04,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:04,135 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:04,154 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:48:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:04,159 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:48:04,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:04,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1441076371, now seen corresponding path program 7 times [2021-10-28 23:48:04,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:04,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482983815] [2021-10-28 23:48:04,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:04,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:04,178 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:48:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:04,200 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:48:04,243 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:48:04,244 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:48:04,244 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:48:04,244 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:48:04,244 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:48:04,244 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:04,244 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:48:04,244 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:48:04,244 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration6_Loop [2021-10-28 23:48:04,244 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:48:04,244 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:48:04,245 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 23:48:04,248 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 23:48:04,251 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 23:48:04,336 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:48:04,336 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:48:04,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:04,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:04,338 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:04,343 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:48:04,343 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:48:04,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 23:48:04,364 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:48:04,364 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:48:04,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-10-28 23:48:04,400 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:04,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:04,400 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:04,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 23:48:04,404 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:48:04,404 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:48:04,419 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:48:04,419 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:48:04,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:04,444 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:04,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:04,444 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:04,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:48:04,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:48:04,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 23:48:04,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:04,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:04,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:04,535 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:04,537 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:48:04,537 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:48:04,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 23:48:05,444 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:48:05,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:05,447 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:48:05,447 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:48:05,447 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:48:05,448 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:48:05,448 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:48:05,448 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:05,448 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:48:05,448 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:48:05,448 INFO L133 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration6_Loop [2021-10-28 23:48:05,448 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:48:05,448 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:48:05,449 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 23:48:05,461 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 23:48:05,463 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 23:48:05,545 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:48:05,546 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:48:05,546 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:05,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:05,547 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:05,548 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 23:48:05,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 23:48:05,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:48:05,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:48:05,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:48:05,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:48:05,559 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:48:05,559 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:48:05,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:48:05,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:05,614 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:05,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:05,615 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:05,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 23:48:05,617 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 23:48:05,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:48:05,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:48:05,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:48:05,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:48:05,629 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:48:05,629 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:48:05,632 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:48:05,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:05,657 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:05,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:05,658 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:05,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 23:48:05,660 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 23:48:05,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:48:05,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:48:05,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:48:05,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:48:05,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:48:05,671 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:48:05,671 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:48:05,700 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:48:05,703 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:48:05,703 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:48:05,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:05,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:05,704 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:05,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 23:48:05,706 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:48:05,706 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:48:05,706 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:48:05,706 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2021-10-28 23:48:05,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-28 23:48:05,731 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:48:05,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:05,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:48:05,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:05,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:48:05,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:05,848 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 23:48:05,849 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 23:48:05,850 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 11 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 23:48:05,873 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 11. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 35 states and 50 transitions. Complement of second has 6 states. [2021-10-28 23:48:05,875 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 23:48:05,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 23:48:05,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-28 23:48:05,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 8 letters. Loop has 4 letters. [2021-10-28 23:48:05,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:48:05,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 4 letters. [2021-10-28 23:48:05,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:48:05,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 8 letters. Loop has 8 letters. [2021-10-28 23:48:05,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:48:05,878 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 50 transitions. [2021-10-28 23:48:05,879 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:48:05,879 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2021-10-28 23:48:05,880 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:48:05,880 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:48:05,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:48:05,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:05,880 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:48:05,880 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:48:05,880 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:48:05,881 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 23:48:05,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:48:05,881 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:48:05,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:48:05,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:48:05 BoogieIcfgContainer [2021-10-28 23:48:05,889 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:48:05,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:48:05,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:48:05,890 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:48:05,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:47:55" (3/4) ... [2021-10-28 23:48:05,894 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:48:05,895 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:48:05,896 INFO L168 Benchmark]: Toolchain (without parser) took 11569.90 ms. Allocated memory was 88.1 MB in the beginning and 136.3 MB in the end (delta: 48.2 MB). Free memory was 52.7 MB in the beginning and 68.5 MB in the end (delta: -15.9 MB). Peak memory consumption was 31.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:05,897 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory is still 68.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:48:05,898 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.62 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 52.4 MB in the beginning and 91.5 MB in the end (delta: -39.1 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:05,898 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.11 ms. Allocated memory is still 113.2 MB. Free memory was 91.5 MB in the beginning and 90.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:48:05,899 INFO L168 Benchmark]: Boogie Preprocessor took 44.30 ms. Allocated memory is still 113.2 MB. Free memory was 90.1 MB in the beginning and 89.4 MB in the end (delta: 755.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:05,899 INFO L168 Benchmark]: RCFGBuilder took 353.74 ms. Allocated memory is still 113.2 MB. Free memory was 89.1 MB in the beginning and 81.4 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:05,900 INFO L168 Benchmark]: BuchiAutomizer took 10839.31 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 81.4 MB in the beginning and 68.5 MB in the end (delta: 12.9 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:05,900 INFO L168 Benchmark]: Witness Printer took 5.38 ms. Allocated memory is still 136.3 MB. Free memory is still 68.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:48:05,903 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory is still 68.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 260.62 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 52.4 MB in the beginning and 91.5 MB in the end (delta: -39.1 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.11 ms. Allocated memory is still 113.2 MB. Free memory was 91.5 MB in the beginning and 90.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.30 ms. Allocated memory is still 113.2 MB. Free memory was 90.1 MB in the beginning and 89.4 MB in the end (delta: 755.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 353.74 ms. Allocated memory is still 113.2 MB. Free memory was 89.1 MB in the beginning and 81.4 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 10839.31 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 81.4 MB in the beginning and 68.5 MB in the end (delta: 12.9 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.38 ms. Allocated memory is still 136.3 MB. Free memory is still 68.5 MB. 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 7 terminating modules (1 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has 2-nested ranking function (if x > 0 then 1 else 0), (if x > 0 then x else y) and consists of 5 locations. One deterministic module has affine ranking function z + -1 * y and consists of 4 locations. One deterministic module has 2-nested ranking function (if x > 0 then 1 else 0), (if x > 0 then x else y + x) and consists of 5 locations. One deterministic module has affine ranking function z and consists of 4 locations. One nondeterministic module has affine ranking function z + -1 * y and consists of 4 locations. One nondeterministic module has 2-nested ranking function (if x > 0 then 1 else 0), (if x > 0 then x else y + x) and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.7s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 7.7s. Construction of modules took 0.1s. Büchi inclusion checks took 2.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 17 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 3. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 66 SDtfs, 67 SDslu, 8 SDs, 0 SdLazy, 139 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax168 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf93 smp97 dnf100 smp100 tf109 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:48:05,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:06,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2021-10-28 23:48:06,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f95cf0d-dc6f-44ad-ac92-60294cda7c7c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...