./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/c.01-no-inv_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/c.01-no-inv_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer --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 90c8922c67b3eb8c55716b63a408098d1b23a21e .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 05:29:32,849 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:29:32,850 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:29:32,856 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:29:32,856 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:29:32,856 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:29:32,857 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:29:32,858 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:29:32,859 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:29:32,859 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:29:32,860 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:29:32,860 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:29:32,861 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:29:32,861 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:29:32,862 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:29:32,863 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:29:32,864 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:29:32,865 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:29:32,866 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:29:32,867 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:29:32,868 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:29:32,869 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:29:32,870 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:29:32,870 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:29:32,870 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:29:32,871 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:29:32,872 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:29:32,872 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:29:32,873 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:29:32,873 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:29:32,873 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:29:32,874 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:29:32,874 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:29:32,874 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:29:32,875 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:29:32,875 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:29:32,876 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-10 05:29:32,886 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:29:32,886 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:29:32,887 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 05:29:32,887 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 05:29:32,887 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 05:29:32,887 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 05:29:32,887 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 05:29:32,888 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 05:29:32,888 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 05:29:32,888 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 05:29:32,888 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 05:29:32,888 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:29:32,888 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 05:29:32,888 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:29:32,888 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:29:32,889 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 05:29:32,889 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 05:29:32,889 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 05:29:32,889 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:29:32,889 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 05:29:32,889 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 05:29:32,889 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:29:32,890 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:29:32,890 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 05:29:32,890 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:29:32,890 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 05:29:32,890 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 05:29:32,891 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 05:29:32,891 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer 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 -> 90c8922c67b3eb8c55716b63a408098d1b23a21e [2018-11-10 05:29:32,914 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:29:32,923 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:29:32,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:29:32,927 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:29:32,927 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:29:32,928 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/c.01-no-inv_true-termination_true-no-overflow.c [2018-11-10 05:29:32,970 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/data/140230bf7/734fbccb514444458846615ccd0df5c8/FLAGa67b95807 [2018-11-10 05:29:33,364 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:29:33,364 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/sv-benchmarks/c/termination-restricted-15/c.01-no-inv_true-termination_true-no-overflow.c [2018-11-10 05:29:33,368 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/data/140230bf7/734fbccb514444458846615ccd0df5c8/FLAGa67b95807 [2018-11-10 05:29:33,378 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/data/140230bf7/734fbccb514444458846615ccd0df5c8 [2018-11-10 05:29:33,381 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:29:33,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:29:33,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:29:33,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:29:33,385 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:29:33,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:29:33" (1/1) ... [2018-11-10 05:29:33,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@133164ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:33, skipping insertion in model container [2018-11-10 05:29:33,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:29:33" (1/1) ... [2018-11-10 05:29:33,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:29:33,405 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:29:33,502 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:29:33,504 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:29:33,514 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:29:33,522 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:29:33,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:33 WrapperNode [2018-11-10 05:29:33,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:29:33,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:29:33,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:29:33,523 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:29:33,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:33" (1/1) ... [2018-11-10 05:29:33,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:33" (1/1) ... [2018-11-10 05:29:33,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:29:33,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:29:33,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:29:33,542 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:29:33,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:33" (1/1) ... [2018-11-10 05:29:33,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:33" (1/1) ... [2018-11-10 05:29:33,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:33" (1/1) ... [2018-11-10 05:29:33,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:33" (1/1) ... [2018-11-10 05:29:33,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:33" (1/1) ... [2018-11-10 05:29:33,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:33" (1/1) ... [2018-11-10 05:29:33,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:33" (1/1) ... [2018-11-10 05:29:33,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:29:33,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:29:33,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:29:33,554 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:29:33,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:29:33,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:29:33,720 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:29:33,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:29:33 BoogieIcfgContainer [2018-11-10 05:29:33,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:29:33,722 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 05:29:33,722 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 05:29:33,725 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 05:29:33,726 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 05:29:33,726 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 05:29:33" (1/3) ... [2018-11-10 05:29:33,727 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11030e06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 05:29:33, skipping insertion in model container [2018-11-10 05:29:33,727 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 05:29:33,728 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:29:33" (2/3) ... [2018-11-10 05:29:33,728 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11030e06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 05:29:33, skipping insertion in model container [2018-11-10 05:29:33,728 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 05:29:33,728 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:29:33" (3/3) ... [2018-11-10 05:29:33,730 INFO L375 chiAutomizerObserver]: Analyzing ICFG c.01-no-inv_true-termination_true-no-overflow.c [2018-11-10 05:29:33,780 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 05:29:33,781 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 05:29:33,781 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 05:29:33,781 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 05:29:33,781 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:29:33,781 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:29:33,781 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 05:29:33,781 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:29:33,781 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 05:29:33,794 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-10 05:29:33,813 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-10 05:29:33,813 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 05:29:33,813 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 05:29:33,818 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 05:29:33,818 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 05:29:33,818 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 05:29:33,818 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-10 05:29:33,819 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-10 05:29:33,819 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 05:29:33,819 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 05:29:33,819 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 05:29:33,819 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 05:29:33,826 INFO L793 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 8#L10-3true [2018-11-10 05:29:33,827 INFO L795 eck$LassoCheckResult]: Loop: 8#L10-3true assume true; 12#L10-1true assume !!(main_~x~0 >= 0);main_~y~0 := 1; 13#L12-3true assume !true; 10#L12-4true main_~x~0 := main_~x~0 - 1; 8#L10-3true [2018-11-10 05:29:33,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:33,832 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-10 05:29:33,834 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:29:33,834 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:29:33,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:33,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:29:33,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:33,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:33,893 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:33,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1114569, now seen corresponding path program 1 times [2018-11-10 05:29:33,893 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:29:33,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:29:33,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:33,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:29:33,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:29:33,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:29:33,913 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:29:33,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:29:33,916 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-11-10 05:29:33,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 05:29:33,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 05:29:33,927 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2018-11-10 05:29:33,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:29:33,931 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-11-10 05:29:33,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 05:29:33,933 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2018-11-10 05:29:33,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-10 05:29:33,936 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2018-11-10 05:29:33,936 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-10 05:29:33,937 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-10 05:29:33,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2018-11-10 05:29:33,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 05:29:33,937 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-10 05:29:33,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2018-11-10 05:29:33,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-11-10 05:29:33,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-10 05:29:33,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-11-10 05:29:33,957 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-10 05:29:33,957 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-10 05:29:33,957 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 05:29:33,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2018-11-10 05:29:33,958 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-10 05:29:33,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 05:29:33,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 05:29:33,958 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 05:29:33,958 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-10 05:29:33,959 INFO L793 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 30#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 31#L10-3 [2018-11-10 05:29:33,959 INFO L795 eck$LassoCheckResult]: Loop: 31#L10-3 assume true; 36#L10-1 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 35#L12-3 assume true; 33#L12-1 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 34#L12-4 main_~x~0 := main_~x~0 - 1; 31#L10-3 [2018-11-10 05:29:33,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:33,959 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-11-10 05:29:33,959 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:29:33,959 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:29:33,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:33,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:29:33,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:33,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:33,964 INFO L82 PathProgramCache]: Analyzing trace with hash 34543791, now seen corresponding path program 1 times [2018-11-10 05:29:33,964 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:29:33,965 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:29:33,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:33,966 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 05:29:33,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:33,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:33,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1805983277, now seen corresponding path program 1 times [2018-11-10 05:29:33,974 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:29:33,974 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:29:33,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:33,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:29:33,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:33,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:34,034 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 05:29:34,035 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 05:29:34,035 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 05:29:34,035 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 05:29:34,035 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 05:29:34,035 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:34,036 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 05:29:34,036 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 05:29:34,036 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-10 05:29:34,036 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 05:29:34,036 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 05:29:34,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,131 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 05:29:34,131 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:34,147 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:29:34,147 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:29:34,168 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 05:29:34,168 INFO L446 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:34,172 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:29:34,172 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:29:34,198 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 05:29:34,198 INFO L446 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:34,203 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:29:34,204 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:34,223 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 05:29:34,223 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:29:34,246 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 05:29:34,247 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 05:29:34,247 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 05:29:34,247 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 05:29:34,247 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 05:29:34,247 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 05:29:34,247 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:34,248 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 05:29:34,248 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 05:29:34,248 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-10 05:29:34,248 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 05:29:34,248 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 05:29:34,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,304 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 05:29:34,307 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 05:29:34,308 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 05:29:34,309 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:29:34,309 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:29:34,310 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:29:34,310 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:29:34,312 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 05:29:34,312 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 05:29:34,319 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 05:29:34,319 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 05:29:34,320 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:29:34,320 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:29:34,320 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:29:34,320 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:29:34,322 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 05:29:34,322 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 05:29:34,329 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 05:29:34,330 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 05:29:34,330 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:29:34,330 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 05:29:34,331 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:29:34,331 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:29:34,331 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:29:34,332 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 05:29:34,332 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 05:29:34,338 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 05:29:34,342 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 05:29:34,342 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 05:29:34,344 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 05:29:34,344 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 05:29:34,345 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 05:29:34,345 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-10 05:29:34,346 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 05:29:34,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:29:34,371 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:29:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:29:34,380 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:29:34,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:29:34,408 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 [2018-11-10 05:29:34,408 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand 4 states. [2018-11-10 05:29:34,433 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 12 states and 15 transitions. Complement of second has 6 states. [2018-11-10 05:29:34,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 05:29:34,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 05:29:34,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-11-10 05:29:34,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 5 letters. [2018-11-10 05:29:34,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:29:34,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 5 letters. [2018-11-10 05:29:34,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:29:34,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 10 letters. [2018-11-10 05:29:34,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:29:34,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2018-11-10 05:29:34,438 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 05:29:34,438 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 11 states and 14 transitions. [2018-11-10 05:29:34,438 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-10 05:29:34,438 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-10 05:29:34,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-11-10 05:29:34,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 05:29:34,439 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-10 05:29:34,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-11-10 05:29:34,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-10 05:29:34,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-10 05:29:34,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2018-11-10 05:29:34,440 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-10 05:29:34,440 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-10 05:29:34,440 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 05:29:34,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2018-11-10 05:29:34,440 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 05:29:34,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 05:29:34,440 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 05:29:34,441 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-10 05:29:34,441 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 05:29:34,441 INFO L793 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 93#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 94#L10-3 assume true; 101#L10-1 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 97#L12-3 [2018-11-10 05:29:34,441 INFO L795 eck$LassoCheckResult]: Loop: 97#L12-3 assume true; 96#L12-1 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 97#L12-3 [2018-11-10 05:29:34,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:34,441 INFO L82 PathProgramCache]: Analyzing trace with hash 925641, now seen corresponding path program 1 times [2018-11-10 05:29:34,441 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:29:34,441 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:29:34,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:34,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:29:34,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:34,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:34,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 1 times [2018-11-10 05:29:34,447 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:29:34,447 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:29:34,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:34,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:29:34,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:34,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:34,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:34,452 INFO L82 PathProgramCache]: Analyzing trace with hash 889541519, now seen corresponding path program 1 times [2018-11-10 05:29:34,452 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:29:34,452 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:29:34,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:34,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:29:34,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:34,500 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 05:29:34,500 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 05:29:34,500 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 05:29:34,500 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 05:29:34,500 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 05:29:34,500 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:34,500 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 05:29:34,500 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 05:29:34,500 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration3_Lasso [2018-11-10 05:29:34,501 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 05:29:34,501 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 05:29:34,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,579 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 05:29:34,579 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:34,583 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:29:34,583 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:29:34,611 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 05:29:34,611 INFO L446 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:34,613 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:29:34,613 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:29:34,616 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 05:29:34,616 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:34,640 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:29:34,640 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:29:34,642 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 05:29:34,642 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:34,666 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:29:34,666 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:29:34,668 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 05:29:34,668 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:34,684 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:29:34,684 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:29:34,700 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 05:29:34,701 INFO L446 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:34,703 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:29:34,703 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:34,732 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 05:29:34,732 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:29:34,758 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 05:29:34,759 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 05:29:34,759 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 05:29:34,759 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 05:29:34,759 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 05:29:34,759 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 05:29:34,759 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:34,759 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 05:29:34,759 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 05:29:34,759 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration3_Lasso [2018-11-10 05:29:34,759 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 05:29:34,759 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 05:29:34,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:34,860 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 05:29:34,860 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 05:29:34,860 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 05:29:34,861 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:29:34,861 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 05:29:34,861 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:29:34,861 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:29:34,861 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:29:34,862 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 05:29:34,862 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 05:29:34,863 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 05:29:34,864 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 05:29:34,864 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:29:34,864 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:29:34,864 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:29:34,864 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:29:34,866 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 05:29:34,866 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 05:29:34,874 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 05:29:34,875 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 05:29:34,875 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:29:34,875 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 05:29:34,876 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:29:34,876 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:29:34,876 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:29:34,876 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 05:29:34,876 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 05:29:34,877 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 05:29:34,877 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 05:29:34,878 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:29:34,878 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 05:29:34,878 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:29:34,878 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:29:34,878 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:29:34,879 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 05:29:34,879 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 05:29:34,880 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 05:29:34,880 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 05:29:34,880 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:29:34,881 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:29:34,881 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:29:34,881 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:29:34,882 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 05:29:34,883 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 05:29:34,888 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 05:29:34,888 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 05:29:34,888 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:29:34,889 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:29:34,889 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:29:34,889 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:29:34,890 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 05:29:34,890 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 05:29:34,894 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 05:29:34,894 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 05:29:34,895 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:29:34,895 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:29:34,895 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:29:34,895 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:29:34,898 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 05:29:34,898 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 05:29:34,932 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 05:29:34,958 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-11-10 05:29:34,958 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-10 05:29:34,959 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 05:29:34,960 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 05:29:34,961 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 05:29:34,961 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483647 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2018-11-10 05:29:34,974 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 05:29:35,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:29:35,030 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:29:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:29:35,035 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:29:35,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:29:35,036 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 [2018-11-10 05:29:35,036 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-10 05:29:35,067 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 28 states and 34 transitions. Complement of second has 5 states. [2018-11-10 05:29:35,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 05:29:35,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 05:29:35,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-10 05:29:35,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-10 05:29:35,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:29:35,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-10 05:29:35,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:29:35,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-10 05:29:35,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:29:35,069 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 34 transitions. [2018-11-10 05:29:35,070 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 05:29:35,070 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 19 states and 23 transitions. [2018-11-10 05:29:35,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-10 05:29:35,071 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-10 05:29:35,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 23 transitions. [2018-11-10 05:29:35,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 05:29:35,071 INFO L705 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2018-11-10 05:29:35,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 23 transitions. [2018-11-10 05:29:35,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2018-11-10 05:29:35,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-10 05:29:35,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2018-11-10 05:29:35,073 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-11-10 05:29:35,073 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-11-10 05:29:35,074 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-10 05:29:35,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2018-11-10 05:29:35,074 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 05:29:35,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 05:29:35,075 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 05:29:35,075 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2018-11-10 05:29:35,075 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 05:29:35,075 INFO L793 eck$LassoCheckResult]: Stem: 181#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 179#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 180#L10-3 assume true; 186#L10-1 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 185#L12-3 assume true; 193#L12-1 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 190#L12-4 main_~x~0 := main_~x~0 - 1; 187#L10-3 assume true; 188#L10-1 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 183#L12-3 [2018-11-10 05:29:35,075 INFO L795 eck$LassoCheckResult]: Loop: 183#L12-3 assume true; 182#L12-1 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 183#L12-3 [2018-11-10 05:29:35,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:35,076 INFO L82 PathProgramCache]: Analyzing trace with hash 383141811, now seen corresponding path program 2 times [2018-11-10 05:29:35,076 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:29:35,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:29:35,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:35,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:29:35,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:35,083 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:35,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 2 times [2018-11-10 05:29:35,083 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:29:35,083 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:29:35,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:35,084 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 05:29:35,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:35,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:35,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:35,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1167906567, now seen corresponding path program 1 times [2018-11-10 05:29:35,088 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:29:35,088 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:29:35,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:35,089 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 05:29:35,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:29:35,129 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:29:35,129 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 05:29:35,129 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 05:29:35,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:29:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:29:35,140 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:29:35,163 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:29:35,179 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 05:29:35,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-11-10 05:29:35,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 05:29:35,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-10 05:29:35,193 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. cyclomatic complexity: 6 Second operand 7 states. [2018-11-10 05:29:35,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:29:35,238 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2018-11-10 05:29:35,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 05:29:35,239 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 40 transitions. [2018-11-10 05:29:35,240 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 05:29:35,240 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 21 states and 24 transitions. [2018-11-10 05:29:35,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-10 05:29:35,240 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-10 05:29:35,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 24 transitions. [2018-11-10 05:29:35,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 05:29:35,241 INFO L705 BuchiCegarLoop]: Abstraction has 21 states and 24 transitions. [2018-11-10 05:29:35,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 24 transitions. [2018-11-10 05:29:35,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2018-11-10 05:29:35,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-10 05:29:35,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2018-11-10 05:29:35,243 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2018-11-10 05:29:35,243 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2018-11-10 05:29:35,243 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-10 05:29:35,243 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2018-11-10 05:29:35,243 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 05:29:35,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 05:29:35,244 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 05:29:35,244 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2018-11-10 05:29:35,244 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 05:29:35,244 INFO L793 eck$LassoCheckResult]: Stem: 280#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 278#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 279#L10-3 assume true; 285#L10-1 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 290#L12-3 assume true; 283#L12-1 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 284#L12-3 assume true; 291#L12-1 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 289#L12-4 main_~x~0 := main_~x~0 - 1; 286#L10-3 assume true; 287#L10-1 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 282#L12-3 [2018-11-10 05:29:35,244 INFO L795 eck$LassoCheckResult]: Loop: 282#L12-3 assume true; 281#L12-1 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 282#L12-3 [2018-11-10 05:29:35,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:35,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1119453267, now seen corresponding path program 2 times [2018-11-10 05:29:35,245 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:29:35,245 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:29:35,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:35,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:29:35,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:35,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:35,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 3 times [2018-11-10 05:29:35,254 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:29:35,255 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:29:35,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:35,256 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 05:29:35,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:35,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:35,258 INFO L82 PathProgramCache]: Analyzing trace with hash -2052765069, now seen corresponding path program 3 times [2018-11-10 05:29:35,259 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:29:35,259 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:29:35,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:35,260 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 05:29:35,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:29:35,302 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:29:35,303 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 05:29:35,303 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 05:29:35,310 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-10 05:29:35,315 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-10 05:29:35,315 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 05:29:35,316 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:29:35,340 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:29:35,355 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 05:29:35,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-11-10 05:29:35,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 05:29:35,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-10 05:29:35,363 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand 8 states. [2018-11-10 05:29:35,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:29:35,402 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2018-11-10 05:29:35,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 05:29:35,402 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 40 transitions. [2018-11-10 05:29:35,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 05:29:35,403 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 27 states and 30 transitions. [2018-11-10 05:29:35,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-10 05:29:35,403 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-10 05:29:35,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 30 transitions. [2018-11-10 05:29:35,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 05:29:35,404 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-11-10 05:29:35,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 30 transitions. [2018-11-10 05:29:35,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2018-11-10 05:29:35,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-10 05:29:35,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2018-11-10 05:29:35,405 INFO L728 BuchiCegarLoop]: Abstraction has 22 states and 25 transitions. [2018-11-10 05:29:35,405 INFO L608 BuchiCegarLoop]: Abstraction has 22 states and 25 transitions. [2018-11-10 05:29:35,406 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-10 05:29:35,406 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 25 transitions. [2018-11-10 05:29:35,406 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 05:29:35,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 05:29:35,406 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 05:29:35,407 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 1, 1, 1, 1] [2018-11-10 05:29:35,407 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 05:29:35,407 INFO L793 eck$LassoCheckResult]: Stem: 390#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 388#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 389#L10-3 assume true; 395#L10-1 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 409#L12-3 assume true; 393#L12-1 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 394#L12-3 assume true; 400#L12-1 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 406#L12-3 assume true; 402#L12-1 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 399#L12-4 main_~x~0 := main_~x~0 - 1; 396#L10-3 assume true; 398#L10-1 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 392#L12-3 [2018-11-10 05:29:35,407 INFO L795 eck$LassoCheckResult]: Loop: 392#L12-3 assume true; 391#L12-1 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 392#L12-3 [2018-11-10 05:29:35,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:35,407 INFO L82 PathProgramCache]: Analyzing trace with hash -2004311769, now seen corresponding path program 4 times [2018-11-10 05:29:35,407 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:29:35,407 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:29:35,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:35,408 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 05:29:35,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:35,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:35,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:35,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 4 times [2018-11-10 05:29:35,415 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:29:35,416 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:29:35,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:35,417 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 05:29:35,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:35,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:35,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1998260883, now seen corresponding path program 5 times [2018-11-10 05:29:35,419 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:29:35,419 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:29:35,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:35,420 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 05:29:35,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:29:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:29:35,487 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 05:29:35,488 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 05:29:35,488 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 05:29:35,488 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 05:29:35,488 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 05:29:35,488 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:35,488 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 05:29:35,488 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 05:29:35,488 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration6_Lasso [2018-11-10 05:29:35,488 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 05:29:35,488 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 05:29:35,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:35,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:35,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:35,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:35,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:35,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:35,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:35,564 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 05:29:35,565 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:35,567 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:29:35,567 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:29:35,569 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 05:29:35,569 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:35,589 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:29:35,590 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:29:35,592 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 05:29:35,592 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:35,613 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:29:35,614 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:29:35,616 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 05:29:35,616 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:35,635 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:29:35,636 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:29:35,655 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 05:29:35,655 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:35,659 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:29:35,659 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:29:35,661 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 05:29:35,662 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:35,684 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:29:35,684 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:29:35,703 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 05:29:35,703 INFO L446 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:35,706 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:29:35,706 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_380a7e3c-aa84-4b64-987e-f9493b9b2a97/bin-2019/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:35,742 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 05:29:35,743 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:29:35,766 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 05:29:35,768 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 05:29:35,768 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 05:29:35,768 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 05:29:35,768 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 05:29:35,768 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 05:29:35,768 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:29:35,768 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 05:29:35,768 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 05:29:35,768 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration6_Lasso [2018-11-10 05:29:35,768 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 05:29:35,768 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 05:29:35,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:35,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:35,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:35,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:35,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:35,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:35,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:29:35,853 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 05:29:35,853 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 05:29:35,853 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 05:29:35,854 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:29:35,854 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 05:29:35,854 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:29:35,854 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:29:35,854 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:29:35,855 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 05:29:35,855 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 05:29:35,855 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 05:29:35,856 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 05:29:35,856 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:29:35,856 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 05:29:35,856 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:29:35,856 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:29:35,857 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:29:35,857 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 05:29:35,857 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 05:29:35,857 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 05:29:35,858 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 05:29:35,858 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:29:35,858 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 05:29:35,858 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:29:35,858 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:29:35,858 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:29:35,859 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 05:29:35,859 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 05:29:35,859 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 05:29:35,859 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 05:29:35,860 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:29:35,860 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:29:35,860 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:29:35,860 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:29:35,861 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 05:29:35,861 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 05:29:35,863 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 05:29:35,863 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 05:29:35,864 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:29:35,864 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:29:35,864 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:29:35,864 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:29:35,866 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 05:29:35,866 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 05:29:35,883 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 05:29:35,887 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 05:29:35,887 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 05:29:35,887 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 05:29:35,888 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 05:29:35,888 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 05:29:35,888 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483647 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2018-11-10 05:29:35,893 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 05:29:35,932 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:29:35,939 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:29:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:29:35,943 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:29:35,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:29:35,944 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 [2018-11-10 05:29:35,944 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-10 05:29:35,964 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 33 states and 38 transitions. Complement of second has 5 states. [2018-11-10 05:29:35,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 05:29:35,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 05:29:35,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-10 05:29:35,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 13 letters. Loop has 2 letters. [2018-11-10 05:29:35,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:29:35,965 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 05:29:35,983 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:29:35,991 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:29:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:29:35,997 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:29:35,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:29:35,998 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 [2018-11-10 05:29:35,998 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-10 05:29:36,021 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 33 states and 38 transitions. Complement of second has 5 states. [2018-11-10 05:29:36,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 05:29:36,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 05:29:36,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-10 05:29:36,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 13 letters. Loop has 2 letters. [2018-11-10 05:29:36,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:29:36,022 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 05:29:36,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:29:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:29:36,042 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:29:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:29:36,045 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:29:36,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:29:36,045 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 [2018-11-10 05:29:36,045 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-10 05:29:36,062 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 34 states and 40 transitions. Complement of second has 4 states. [2018-11-10 05:29:36,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 05:29:36,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 05:29:36,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2018-11-10 05:29:36,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 13 letters. Loop has 2 letters. [2018-11-10 05:29:36,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:29:36,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 15 letters. Loop has 2 letters. [2018-11-10 05:29:36,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:29:36,064 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 13 letters. Loop has 4 letters. [2018-11-10 05:29:36,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:29:36,064 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 40 transitions. [2018-11-10 05:29:36,066 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 05:29:36,066 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 0 states and 0 transitions. [2018-11-10 05:29:36,066 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 05:29:36,066 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 05:29:36,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 05:29:36,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 05:29:36,067 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 05:29:36,067 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 05:29:36,067 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 05:29:36,067 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-10 05:29:36,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 05:29:36,067 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 05:29:36,067 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 05:29:36,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 05:29:36 BoogieIcfgContainer [2018-11-10 05:29:36,071 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 05:29:36,071 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:29:36,072 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:29:36,072 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:29:36,072 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:29:33" (3/4) ... [2018-11-10 05:29:36,074 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 05:29:36,074 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:29:36,075 INFO L168 Benchmark]: Toolchain (without parser) took 2693.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 959.3 MB in the beginning and 1.0 GB in the end (delta: -88.9 MB). Peak memory consumption was 51.6 MB. Max. memory is 11.5 GB. [2018-11-10 05:29:36,076 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:29:36,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.48 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 05:29:36,076 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.94 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:29:36,077 INFO L168 Benchmark]: Boogie Preprocessor took 11.44 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:29:36,077 INFO L168 Benchmark]: RCFGBuilder took 168.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:29:36,077 INFO L168 Benchmark]: BuchiAutomizer took 2349.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 82.8 MB). Peak memory consumption was 82.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:29:36,078 INFO L168 Benchmark]: Witness Printer took 2.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-11-10 05:29:36,080 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.48 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.94 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.44 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 168.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2349.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 82.8 MB). Peak memory consumption was 82.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. One deterministic module has affine ranking function -2 * y + 2147483647 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * y + 2147483647 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 7 iterations. TraceHistogramMax:3. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 22 states and ocurred in iteration 5. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 67 SDtfs, 51 SDslu, 40 SDs, 0 SdLazy, 73 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf98 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf93 smp100 dnf100 smp100 tf102 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 13 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...