./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/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 c0afa1d46bded0eb2bd485bf4790c0d11468ed7a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 15:38:29,008 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 15:38:29,009 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 15:38:29,015 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 15:38:29,015 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 15:38:29,016 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 15:38:29,017 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 15:38:29,017 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 15:38:29,018 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 15:38:29,018 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 15:38:29,019 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 15:38:29,019 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 15:38:29,020 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 15:38:29,020 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 15:38:29,021 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 15:38:29,021 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 15:38:29,021 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 15:38:29,022 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 15:38:29,023 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 15:38:29,024 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 15:38:29,024 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 15:38:29,025 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 15:38:29,026 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 15:38:29,026 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 15:38:29,026 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 15:38:29,026 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 15:38:29,027 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 15:38:29,027 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 15:38:29,027 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 15:38:29,028 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 15:38:29,028 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 15:38:29,028 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 15:38:29,029 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 15:38:29,029 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 15:38:29,029 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 15:38:29,029 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 15:38:29,030 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-09 15:38:29,037 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 15:38:29,037 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 15:38:29,038 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 15:38:29,038 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 15:38:29,038 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 15:38:29,038 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-09 15:38:29,038 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-09 15:38:29,038 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-09 15:38:29,038 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-09 15:38:29,039 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-09 15:38:29,039 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-09 15:38:29,039 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 15:38:29,039 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 15:38:29,039 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 15:38:29,039 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 15:38:29,039 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-09 15:38:29,039 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-09 15:38:29,039 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-09 15:38:29,039 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 15:38:29,039 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-09 15:38:29,040 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 15:38:29,040 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-09 15:38:29,040 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 15:38:29,040 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 15:38:29,040 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-09 15:38:29,040 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 15:38:29,040 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 15:38:29,040 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-09 15:38:29,041 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-09 15:38:29,041 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_77f97569-bd80-4cfe-a33b-c606b1f319de/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 -> c0afa1d46bded0eb2bd485bf4790c0d11468ed7a [2018-12-09 15:38:29,057 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 15:38:29,064 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 15:38:29,066 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 15:38:29,067 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 15:38:29,067 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 15:38:29,068 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1_true-termination_true-no-overflow.c [2018-12-09 15:38:29,101 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/bin-2019/uautomizer/data/f49baac39/86674bb93887464eb9df97f3cc0c5c94/FLAGc30a94672 [2018-12-09 15:38:29,532 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 15:38:29,532 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1_true-termination_true-no-overflow.c [2018-12-09 15:38:29,536 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/bin-2019/uautomizer/data/f49baac39/86674bb93887464eb9df97f3cc0c5c94/FLAGc30a94672 [2018-12-09 15:38:29,544 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/bin-2019/uautomizer/data/f49baac39/86674bb93887464eb9df97f3cc0c5c94 [2018-12-09 15:38:29,545 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 15:38:29,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 15:38:29,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 15:38:29,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 15:38:29,548 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 15:38:29,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:38:29" (1/1) ... [2018-12-09 15:38:29,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4857c57f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:38:29, skipping insertion in model container [2018-12-09 15:38:29,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:38:29" (1/1) ... [2018-12-09 15:38:29,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 15:38:29,565 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 15:38:29,658 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:38:29,660 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 15:38:29,670 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:38:29,678 INFO L195 MainTranslator]: Completed translation [2018-12-09 15:38:29,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:38:29 WrapperNode [2018-12-09 15:38:29,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 15:38:29,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 15:38:29,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 15:38:29,679 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 15:38:29,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:38:29" (1/1) ... [2018-12-09 15:38:29,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:38:29" (1/1) ... [2018-12-09 15:38:29,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 15:38:29,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 15:38:29,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 15:38:29,699 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 15:38:29,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:38:29" (1/1) ... [2018-12-09 15:38:29,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:38:29" (1/1) ... [2018-12-09 15:38:29,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:38:29" (1/1) ... [2018-12-09 15:38:29,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:38:29" (1/1) ... [2018-12-09 15:38:29,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:38:29" (1/1) ... [2018-12-09 15:38:29,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:38:29" (1/1) ... [2018-12-09 15:38:29,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:38:29" (1/1) ... [2018-12-09 15:38:29,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 15:38:29,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 15:38:29,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 15:38:29,714 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 15:38:29,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:38:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 15:38:29,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 15:38:29,854 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 15:38:29,854 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 15:38:29,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:38:29 BoogieIcfgContainer [2018-12-09 15:38:29,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 15:38:29,855 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-09 15:38:29,855 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-09 15:38:29,857 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-09 15:38:29,857 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 15:38:29,858 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.12 03:38:29" (1/3) ... [2018-12-09 15:38:29,858 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ad97423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 03:38:29, skipping insertion in model container [2018-12-09 15:38:29,858 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 15:38:29,858 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:38:29" (2/3) ... [2018-12-09 15:38:29,859 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ad97423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 03:38:29, skipping insertion in model container [2018-12-09 15:38:29,859 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 15:38:29,859 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:38:29" (3/3) ... [2018-12-09 15:38:29,860 INFO L375 chiAutomizerObserver]: Analyzing ICFG LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1_true-termination_true-no-overflow.c [2018-12-09 15:38:29,893 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 15:38:29,894 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-09 15:38:29,894 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-09 15:38:29,894 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-09 15:38:29,894 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 15:38:29,894 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 15:38:29,894 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-09 15:38:29,894 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 15:38:29,894 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-09 15:38:29,903 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-12-09 15:38:29,916 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-09 15:38:29,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:38:29,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:38:29,922 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-09 15:38:29,922 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-09 15:38:29,922 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-09 15:38:29,922 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-12-09 15:38:29,923 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-09 15:38:29,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:38:29,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:38:29,923 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-09 15:38:29,923 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-09 15:38:29,929 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 4#L21true assume ((main_~x~0 <= 10000 && main_~x~0 >= -10000) && main_~y~0 <= 10000) && main_~z~0 <= 10000; 10#L22-2true [2018-12-09 15:38:29,930 INFO L796 eck$LassoCheckResult]: Loop: 10#L22-2true assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 7#L24-2true assume !(main_~y~0 < main_~z~0); 5#L24-3true main_~y~0 := main_~x~0 + main_~y~0; 10#L22-2true [2018-12-09 15:38:29,934 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:29,934 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2018-12-09 15:38:29,935 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:38:29,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:38:29,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:29,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:38:29,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:30,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:30,009 INFO L82 PathProgramCache]: Analyzing trace with hash 42930, now seen corresponding path program 1 times [2018-12-09 15:38:30,009 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:38:30,009 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:38:30,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:30,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:38:30,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:30,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:30,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:30,019 INFO L82 PathProgramCache]: Analyzing trace with hash 29684975, now seen corresponding path program 1 times [2018-12-09 15:38:30,020 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:38:30,020 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:38:30,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:30,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:38:30,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:30,075 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:38:30,075 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:38:30,075 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:38:30,075 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:38:30,076 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 15:38:30,076 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:38:30,076 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:38:30,076 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:38:30,076 INFO L131 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-09 15:38:30,076 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:38:30,077 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:38:30,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:30,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:30,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:30,175 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:38:30,175 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:30,178 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:38:30,179 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:38:30,200 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:38:30,200 INFO L448 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_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:30,203 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:38:30,203 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:38:30,217 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:38:30,218 INFO L448 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_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:30,220 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:38:30,220 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:30,237 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:38:30,237 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:38:32,367 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 15:38:32,368 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:38:32,368 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:38:32,368 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:38:32,368 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:38:32,369 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 15:38:32,369 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:38:32,369 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:38:32,369 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:38:32,369 INFO L131 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-09 15:38:32,369 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:38:32,369 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:38:32,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:32,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:32,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:32,422 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:38:32,425 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 15:38:32,426 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 [2018-12-09 15:38:32,426 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:32,427 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:32,427 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:32,427 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:38:32,429 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:38:32,429 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:38:32,434 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:38:32,434 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 [2018-12-09 15:38:32,434 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:32,435 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:32,435 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:32,435 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:38:32,436 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:38:32,436 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:38:32,440 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:38:32,440 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 [2018-12-09 15:38:32,441 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:32,441 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:38:32,441 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:32,441 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:32,441 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:38:32,442 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:38:32,442 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:38:32,447 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:38:32,447 INFO L497 LassoAnalysis]: Using template '2-nested'. [2018-12-09 15:38:32,448 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 [2018-12-09 15:38:32,448 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:32,448 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:32,448 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:32,448 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-09 15:38:32,450 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-12-09 15:38:32,450 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-12-09 15:38:32,452 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:38:32,453 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 [2018-12-09 15:38:32,453 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:32,453 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:32,453 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:32,453 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-09 15:38:32,455 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-12-09 15:38:32,455 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-12-09 15:38:32,460 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:38:32,460 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 [2018-12-09 15:38:32,460 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:32,461 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:38:32,461 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:32,461 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:32,461 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-09 15:38:32,461 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2018-12-09 15:38:32,462 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:38:32,468 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 15:38:32,481 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-12-09 15:38:32,481 INFO L444 ModelExtractionUtils]: 3 out of 9 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-12-09 15:38:32,482 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 15:38:32,483 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 15:38:32,483 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 15:38:32,483 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0 f1 = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-12-09 15:38:32,484 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 15:38:32,506 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:32,513 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:32,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:32,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:38:32,567 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 [2018-12-09 15:38:32,568 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 3 states. [2018-12-09 15:38:32,605 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 3 states. Result 34 states and 47 transitions. Complement of second has 8 states. [2018-12-09 15:38:32,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-09 15:38:32,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-09 15:38:32,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2018-12-09 15:38:32,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 2 letters. Loop has 3 letters. [2018-12-09 15:38:32,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:32,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 5 letters. Loop has 3 letters. [2018-12-09 15:38:32,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:32,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 2 letters. Loop has 6 letters. [2018-12-09 15:38:32,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:32,609 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 47 transitions. [2018-12-09 15:38:32,612 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-09 15:38:32,614 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 10 states and 14 transitions. [2018-12-09 15:38:32,615 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-12-09 15:38:32,615 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-12-09 15:38:32,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2018-12-09 15:38:32,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 15:38:32,616 INFO L705 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2018-12-09 15:38:32,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2018-12-09 15:38:32,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-12-09 15:38:32,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-12-09 15:38:32,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2018-12-09 15:38:32,632 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2018-12-09 15:38:32,632 INFO L608 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2018-12-09 15:38:32,632 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-09 15:38:32,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 14 transitions. [2018-12-09 15:38:32,632 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-09 15:38:32,632 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:38:32,632 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:38:32,633 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-12-09 15:38:32,633 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-09 15:38:32,633 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 93#L21 assume ((main_~x~0 <= 10000 && main_~x~0 >= -10000) && main_~y~0 <= 10000) && main_~z~0 <= 10000; 94#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 96#L24-2 assume !!(main_~y~0 < main_~z~0);main_~x~0 := 1 + main_~x~0;main_~z~0 := main_~z~0 - 1; 97#L24-2 [2018-12-09 15:38:32,633 INFO L796 eck$LassoCheckResult]: Loop: 97#L24-2 assume !!(main_~y~0 < main_~z~0);main_~x~0 := 1 + main_~x~0;main_~z~0 := main_~z~0 - 1; 97#L24-2 [2018-12-09 15:38:32,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:32,633 INFO L82 PathProgramCache]: Analyzing trace with hash 957581, now seen corresponding path program 1 times [2018-12-09 15:38:32,633 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:38:32,633 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:38:32,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:32,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:38:32,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:32,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:32,643 INFO L82 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 1 times [2018-12-09 15:38:32,643 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:38:32,643 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:38:32,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:32,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:38:32,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:32,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:32,648 INFO L82 PathProgramCache]: Analyzing trace with hash 29685033, now seen corresponding path program 2 times [2018-12-09 15:38:32,648 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:38:32,648 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:38:32,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:32,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:38:32,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:32,666 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:38:32,666 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:38:32,666 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:38:32,666 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:38:32,666 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 15:38:32,666 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:38:32,666 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:38:32,666 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:38:32,667 INFO L131 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-09 15:38:32,667 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:38:32,667 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:38:32,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:32,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:32,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:32,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:32,709 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:38:32,709 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:32,711 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:38:32,711 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:38:32,728 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:38:32,728 INFO L448 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_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:32,731 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:38:32,731 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:38:32,745 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:38:32,745 INFO L448 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_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:32,748 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:38:32,749 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:32,765 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:38:32,765 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:38:32,898 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 15:38:32,900 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:38:32,900 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:38:32,900 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:38:32,900 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:38:32,900 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 15:38:32,900 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:38:32,900 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:38:32,900 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:38:32,901 INFO L131 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-09 15:38:32,901 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:38:32,901 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:38:32,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:32,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:32,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:32,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:32,937 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:38:32,937 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 15:38:32,937 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 [2018-12-09 15:38:32,938 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:32,938 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:32,938 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:32,938 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:38:32,940 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:38:32,940 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:38:32,942 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:38:32,943 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 [2018-12-09 15:38:32,943 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:32,943 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:32,943 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:32,943 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:38:32,944 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:38:32,945 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:38:32,948 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:38:32,949 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 [2018-12-09 15:38:32,949 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:32,949 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:38:32,950 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:32,950 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:32,950 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:38:32,950 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:38:32,950 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:38:32,953 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 15:38:32,956 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-09 15:38:32,956 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 15:38:32,956 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 15:38:32,957 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 15:38:32,957 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 15:38:32,957 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-12-09 15:38:32,957 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 15:38:32,973 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:32,978 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:32,982 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:32,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:38:32,982 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 [2018-12-09 15:38:32,982 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6 Second operand 2 states. [2018-12-09 15:38:32,990 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6. Second operand 2 states. Result 17 states and 28 transitions. Complement of second has 6 states. [2018-12-09 15:38:32,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 15:38:32,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-09 15:38:32,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-12-09 15:38:32,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 1 letters. [2018-12-09 15:38:32,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:32,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 1 letters. [2018-12-09 15:38:32,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:32,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 2 letters. [2018-12-09 15:38:32,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:32,992 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 28 transitions. [2018-12-09 15:38:32,993 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-09 15:38:32,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 13 states and 19 transitions. [2018-12-09 15:38:32,993 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-12-09 15:38:32,993 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-12-09 15:38:32,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2018-12-09 15:38:32,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 15:38:32,994 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2018-12-09 15:38:32,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2018-12-09 15:38:32,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2018-12-09 15:38:32,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-09 15:38:32,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 18 transitions. [2018-12-09 15:38:32,995 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2018-12-09 15:38:32,995 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2018-12-09 15:38:32,995 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-09 15:38:32,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 18 transitions. [2018-12-09 15:38:32,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-09 15:38:32,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:38:32,995 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:38:32,996 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-09 15:38:32,997 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-09 15:38:32,997 INFO L794 eck$LassoCheckResult]: Stem: 158#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 156#L21 assume ((main_~x~0 <= 10000 && main_~x~0 >= -10000) && main_~y~0 <= 10000) && main_~z~0 <= 10000; 157#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 161#L24-2 assume !!(main_~y~0 < main_~z~0);main_~x~0 := 1 + main_~x~0;main_~z~0 := main_~z~0 - 1; 163#L24-2 assume !(main_~y~0 < main_~z~0); 152#L24-3 [2018-12-09 15:38:32,997 INFO L796 eck$LassoCheckResult]: Loop: 152#L24-3 main_~y~0 := main_~x~0 + main_~y~0; 153#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 159#L24-2 assume !(main_~y~0 < main_~z~0); 152#L24-3 [2018-12-09 15:38:32,997 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:32,997 INFO L82 PathProgramCache]: Analyzing trace with hash 29685031, now seen corresponding path program 1 times [2018-12-09 15:38:32,997 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:38:32,997 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:38:32,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:32,998 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:38:32,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:33,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:33,004 INFO L82 PathProgramCache]: Analyzing trace with hash 55200, now seen corresponding path program 2 times [2018-12-09 15:38:33,004 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:38:33,004 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:38:33,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:33,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:38:33,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:33,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:33,008 INFO L82 PathProgramCache]: Analyzing trace with hash -416479046, now seen corresponding path program 1 times [2018-12-09 15:38:33,008 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:38:33,008 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:38:33,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:33,009 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:38:33,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:33,037 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:38:33,038 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:38:33,038 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:38:33,038 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:38:33,038 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 15:38:33,038 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:38:33,038 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:38:33,038 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:38:33,038 INFO L131 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-09 15:38:33,038 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:38:33,039 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:38:33,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:33,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:33,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:33,082 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:38:33,082 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:33,084 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:38:33,084 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:38:33,099 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:38:33,099 INFO L448 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_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:33,102 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:38:33,102 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:33,119 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:38:33,119 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:38:35,248 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 15:38:35,250 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:38:35,250 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:38:35,250 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:38:35,250 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:38:35,250 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 15:38:35,250 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:38:35,250 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:38:35,250 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:38:35,250 INFO L131 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-09 15:38:35,250 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:38:35,250 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:38:35,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:35,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:35,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:35,294 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:38:35,294 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 15:38:35,294 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 [2018-12-09 15:38:35,295 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:35,295 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:38:35,295 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:35,295 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:35,295 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:38:35,296 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:38:35,296 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:38:35,298 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:38:35,298 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 [2018-12-09 15:38:35,298 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:35,299 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:35,299 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:35,299 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:38:35,299 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:38:35,299 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:38:35,301 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:38:35,302 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 [2018-12-09 15:38:35,302 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:35,302 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:35,302 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:35,302 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:38:35,303 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:38:35,303 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:38:35,304 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:38:35,304 INFO L497 LassoAnalysis]: Using template '2-nested'. [2018-12-09 15:38:35,304 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 [2018-12-09 15:38:35,305 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:35,305 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:38:35,305 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:35,305 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:35,305 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-09 15:38:35,305 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2018-12-09 15:38:35,305 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:38:35,308 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 15:38:35,311 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-09 15:38:35,311 INFO L444 ModelExtractionUtils]: 3 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-12-09 15:38:35,312 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 15:38:35,312 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 15:38:35,312 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 15:38:35,312 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0 f1 = 1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-12-09 15:38:35,312 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 15:38:35,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:35,328 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:35,332 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:35,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:38:35,402 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-09 15:38:35,402 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-12-09 15:38:35,419 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 30 states and 45 transitions. Complement of second has 8 states. [2018-12-09 15:38:35,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-09 15:38:35,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 15:38:35,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2018-12-09 15:38:35,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 5 letters. Loop has 3 letters. [2018-12-09 15:38:35,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:35,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 3 letters. [2018-12-09 15:38:35,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:35,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 5 letters. Loop has 6 letters. [2018-12-09 15:38:35,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:35,421 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 45 transitions. [2018-12-09 15:38:35,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-09 15:38:35,422 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 22 states and 33 transitions. [2018-12-09 15:38:35,422 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-12-09 15:38:35,422 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-12-09 15:38:35,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 33 transitions. [2018-12-09 15:38:35,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 15:38:35,423 INFO L705 BuchiCegarLoop]: Abstraction has 22 states and 33 transitions. [2018-12-09 15:38:35,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 33 transitions. [2018-12-09 15:38:35,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2018-12-09 15:38:35,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-09 15:38:35,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 26 transitions. [2018-12-09 15:38:35,425 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2018-12-09 15:38:35,425 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2018-12-09 15:38:35,425 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-09 15:38:35,425 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 26 transitions. [2018-12-09 15:38:35,426 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-09 15:38:35,426 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:38:35,426 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:38:35,427 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2018-12-09 15:38:35,427 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-09 15:38:35,427 INFO L794 eck$LassoCheckResult]: Stem: 252#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 250#L21 assume ((main_~x~0 <= 10000 && main_~x~0 >= -10000) && main_~y~0 <= 10000) && main_~z~0 <= 10000; 251#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 263#L24-2 assume !!(main_~y~0 < main_~z~0);main_~x~0 := 1 + main_~x~0;main_~z~0 := main_~z~0 - 1; 261#L24-2 assume !(main_~y~0 < main_~z~0); 247#L24-3 main_~y~0 := main_~x~0 + main_~y~0; 248#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 259#L24-2 assume !!(main_~y~0 < main_~z~0);main_~x~0 := 1 + main_~x~0;main_~z~0 := main_~z~0 - 1; 258#L24-2 [2018-12-09 15:38:35,427 INFO L796 eck$LassoCheckResult]: Loop: 258#L24-2 assume !!(main_~y~0 < main_~z~0);main_~x~0 := 1 + main_~x~0;main_~z~0 := main_~z~0 - 1; 258#L24-2 [2018-12-09 15:38:35,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:35,427 INFO L82 PathProgramCache]: Analyzing trace with hash -416479044, now seen corresponding path program 2 times [2018-12-09 15:38:35,427 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:38:35,428 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:38:35,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:35,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:38:35,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:35,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:35,437 INFO L82 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 2 times [2018-12-09 15:38:35,437 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:38:35,437 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:38:35,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:35,438 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:38:35,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:35,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:35,441 INFO L82 PathProgramCache]: Analyzing trace with hash -25948454, now seen corresponding path program 3 times [2018-12-09 15:38:35,441 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:38:35,441 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:38:35,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:35,442 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:38:35,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:35,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:35,466 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:38:35,466 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:38:35,466 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:38:35,466 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:38:35,466 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 15:38:35,466 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:38:35,467 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:38:35,467 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:38:35,467 INFO L131 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1_true-termination_true-no-overflow.c_Iteration4_Loop [2018-12-09 15:38:35,467 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:38:35,467 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:38:35,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:35,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:35,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:35,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:35,500 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:38:35,501 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/bin-2019/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:38:35,502 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:38:35,502 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:38:35,517 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:38:35,517 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/bin-2019/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:38:35,520 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:38:35,520 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:35,536 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:38:35,536 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:38:35,670 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 15:38:35,672 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:38:35,673 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:38:35,673 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:38:35,673 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:38:35,673 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 15:38:35,673 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:38:35,673 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:38:35,673 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:38:35,673 INFO L131 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1_true-termination_true-no-overflow.c_Iteration4_Loop [2018-12-09 15:38:35,673 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:38:35,673 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:38:35,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:35,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:35,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:35,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:35,704 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:38:35,704 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 15:38:35,704 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 [2018-12-09 15:38:35,705 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:35,705 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:38:35,705 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:35,705 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:35,705 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:38:35,705 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:38:35,706 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:38:35,707 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 15:38:35,708 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 15:38:35,708 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 15:38:35,708 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 15:38:35,708 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 15:38:35,708 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 15:38:35,708 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~z~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-12-09 15:38:35,708 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 15:38:35,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:35,722 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:35,725 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:35,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:38:35,725 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 [2018-12-09 15:38:35,725 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2018-12-09 15:38:35,734 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 21 states and 30 transitions. Complement of second has 5 states. [2018-12-09 15:38:35,734 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 [2018-12-09 15:38:35,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-09 15:38:35,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-12-09 15:38:35,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 1 letters. [2018-12-09 15:38:35,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:35,735 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-09 15:38:35,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:35,750 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:35,753 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:35,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:38:35,753 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 [2018-12-09 15:38:35,754 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2018-12-09 15:38:35,758 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 21 states and 30 transitions. Complement of second has 5 states. [2018-12-09 15:38:35,759 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 [2018-12-09 15:38:35,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-09 15:38:35,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-12-09 15:38:35,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 1 letters. [2018-12-09 15:38:35,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:35,760 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-09 15:38:35,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:35,773 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:35,776 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:35,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:38:35,776 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 [2018-12-09 15:38:35,776 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2018-12-09 15:38:35,782 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 29 states and 45 transitions. Complement of second has 5 states. [2018-12-09 15:38:35,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 15:38:35,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-09 15:38:35,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2018-12-09 15:38:35,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 1 letters. [2018-12-09 15:38:35,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:35,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 1 letters. [2018-12-09 15:38:35,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:35,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 2 letters. [2018-12-09 15:38:35,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:35,783 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 45 transitions. [2018-12-09 15:38:35,784 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-12-09 15:38:35,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 22 states and 31 transitions. [2018-12-09 15:38:35,784 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-12-09 15:38:35,784 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-12-09 15:38:35,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 31 transitions. [2018-12-09 15:38:35,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 15:38:35,785 INFO L705 BuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2018-12-09 15:38:35,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 31 transitions. [2018-12-09 15:38:35,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2018-12-09 15:38:35,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-09 15:38:35,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 26 transitions. [2018-12-09 15:38:35,786 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2018-12-09 15:38:35,786 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2018-12-09 15:38:35,786 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-09 15:38:35,786 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 26 transitions. [2018-12-09 15:38:35,786 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-12-09 15:38:35,786 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:38:35,786 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:38:35,787 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2018-12-09 15:38:35,787 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-09 15:38:35,787 INFO L794 eck$LassoCheckResult]: Stem: 453#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 451#L21 assume ((main_~x~0 <= 10000 && main_~x~0 >= -10000) && main_~y~0 <= 10000) && main_~z~0 <= 10000; 452#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 456#L24-2 assume !(main_~y~0 < main_~z~0); 449#L24-3 main_~y~0 := main_~x~0 + main_~y~0; 450#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 454#L24-2 assume !!(main_~y~0 < main_~z~0);main_~x~0 := 1 + main_~x~0;main_~z~0 := main_~z~0 - 1; 455#L24-2 assume !(main_~y~0 < main_~z~0); 447#L24-3 [2018-12-09 15:38:35,787 INFO L796 eck$LassoCheckResult]: Loop: 447#L24-3 main_~y~0 := main_~x~0 + main_~y~0; 448#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 459#L24-2 assume !(main_~y~0 < main_~z~0); 447#L24-3 [2018-12-09 15:38:35,787 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:35,787 INFO L82 PathProgramCache]: Analyzing trace with hash -418159556, now seen corresponding path program 4 times [2018-12-09 15:38:35,787 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:38:35,787 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:38:35,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:35,788 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:38:35,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:35,793 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:35,793 INFO L82 PathProgramCache]: Analyzing trace with hash 55200, now seen corresponding path program 3 times [2018-12-09 15:38:35,793 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:38:35,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:38:35,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:35,794 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:38:35,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:35,796 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:35,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1986148987, now seen corresponding path program 5 times [2018-12-09 15:38:35,796 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:38:35,796 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:38:35,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:35,797 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:38:35,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:35,839 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:38:35,840 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 15:38:35,840 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 15:38:35,847 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-12-09 15:38:35,852 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2018-12-09 15:38:35,853 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 15:38:35,853 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:35,871 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:38:35,886 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 15:38:35,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-12-09 15:38:35,896 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:38:35,896 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:38:35,896 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:38:35,897 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:38:35,897 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 15:38:35,897 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:38:35,897 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:38:35,897 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:38:35,897 INFO L131 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1_true-termination_true-no-overflow.c_Iteration5_Loop [2018-12-09 15:38:35,897 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:38:35,897 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:38:35,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:35,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:35,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:35,952 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:38:35,953 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:35,954 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:38:35,954 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:38:35,968 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:38:35,968 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:35,971 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:38:35,971 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:38:35,985 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:38:35,986 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:35,989 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:38:35,989 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:36,007 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:38:36,007 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:38:38,149 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 15:38:38,151 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:38:38,151 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:38:38,151 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:38:38,151 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:38:38,151 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 15:38:38,151 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:38:38,151 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:38:38,151 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:38:38,151 INFO L131 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1_true-termination_true-no-overflow.c_Iteration5_Loop [2018-12-09 15:38:38,151 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:38:38,151 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:38:38,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:38,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:38,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:38,181 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:38:38,181 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 15:38:38,181 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 [2018-12-09 15:38:38,182 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:38,182 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:38,182 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:38,182 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:38:38,183 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:38:38,183 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:38:38,184 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:38:38,184 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 [2018-12-09 15:38:38,184 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:38,184 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:38,184 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:38,184 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:38:38,185 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:38:38,185 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:38:38,186 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:38:38,187 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 [2018-12-09 15:38:38,187 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:38,187 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:38:38,187 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:38,187 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:38,187 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:38:38,188 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:38:38,188 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:38:38,190 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:38:38,190 INFO L497 LassoAnalysis]: Using template '2-nested'. [2018-12-09 15:38:38,190 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 [2018-12-09 15:38:38,191 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:38,191 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:38,191 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:38,191 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-09 15:38:38,192 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-12-09 15:38:38,192 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-12-09 15:38:38,194 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:38:38,194 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 [2018-12-09 15:38:38,194 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:38,195 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:38,195 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:38,195 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-09 15:38:38,196 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-12-09 15:38:38,196 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-12-09 15:38:38,199 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:38:38,199 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 [2018-12-09 15:38:38,199 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:38,199 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:38:38,199 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:38,200 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:38,200 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-09 15:38:38,200 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2018-12-09 15:38:38,200 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:38:38,203 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 15:38:38,207 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-12-09 15:38:38,207 INFO L444 ModelExtractionUtils]: 2 out of 9 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-12-09 15:38:38,207 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 15:38:38,207 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 15:38:38,207 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 15:38:38,207 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0 f1 = 1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-12-09 15:38:38,208 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 15:38:38,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:38,221 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:38,224 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:38,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:38:38,303 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-09 15:38:38,303 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 12 Second operand 4 states. [2018-12-09 15:38:38,319 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 26 states and 37 transitions. Complement of second has 7 states. [2018-12-09 15:38:38,320 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 [2018-12-09 15:38:38,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 15:38:38,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2018-12-09 15:38:38,320 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2018-12-09 15:38:38,320 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:38,320 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-09 15:38:38,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:38,339 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:38,342 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:38,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:38:38,394 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-09 15:38:38,394 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 12 Second operand 4 states. [2018-12-09 15:38:38,413 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 24 states and 32 transitions. Complement of second has 7 states. [2018-12-09 15:38:38,414 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 [2018-12-09 15:38:38,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 15:38:38,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-12-09 15:38:38,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 8 letters. Loop has 3 letters. [2018-12-09 15:38:38,414 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:38,414 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-09 15:38:38,422 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:38,425 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:38,428 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:38,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:38:38,477 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-09 15:38:38,477 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 12 Second operand 4 states. [2018-12-09 15:38:38,491 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 26 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 31 states and 43 transitions. Complement of second has 6 states. [2018-12-09 15:38:38,491 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 [2018-12-09 15:38:38,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 15:38:38,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-12-09 15:38:38,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 3 letters. [2018-12-09 15:38:38,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:38,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 11 letters. Loop has 3 letters. [2018-12-09 15:38:38,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:38,492 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 6 letters. [2018-12-09 15:38:38,492 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:38,492 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 43 transitions. [2018-12-09 15:38:38,492 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-12-09 15:38:38,492 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 24 states and 34 transitions. [2018-12-09 15:38:38,493 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-12-09 15:38:38,493 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-12-09 15:38:38,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 34 transitions. [2018-12-09 15:38:38,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 15:38:38,493 INFO L705 BuchiCegarLoop]: Abstraction has 24 states and 34 transitions. [2018-12-09 15:38:38,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 34 transitions. [2018-12-09 15:38:38,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2018-12-09 15:38:38,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-12-09 15:38:38,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2018-12-09 15:38:38,494 INFO L728 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2018-12-09 15:38:38,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 15:38:38,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-09 15:38:38,496 INFO L87 Difference]: Start difference. First operand 19 states and 27 transitions. Second operand 8 states. [2018-12-09 15:38:38,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:38:38,571 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2018-12-09 15:38:38,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 15:38:38,571 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2018-12-09 15:38:38,571 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-09 15:38:38,572 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 28 transitions. [2018-12-09 15:38:38,572 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-12-09 15:38:38,572 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-12-09 15:38:38,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 28 transitions. [2018-12-09 15:38:38,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 15:38:38,572 INFO L705 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2018-12-09 15:38:38,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 28 transitions. [2018-12-09 15:38:38,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2018-12-09 15:38:38,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-09 15:38:38,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2018-12-09 15:38:38,573 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-12-09 15:38:38,573 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-12-09 15:38:38,573 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-12-09 15:38:38,573 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2018-12-09 15:38:38,574 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-09 15:38:38,574 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:38:38,574 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:38:38,574 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2018-12-09 15:38:38,574 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-09 15:38:38,574 INFO L794 eck$LassoCheckResult]: Stem: 784#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 782#L21 assume ((main_~x~0 <= 10000 && main_~x~0 >= -10000) && main_~y~0 <= 10000) && main_~z~0 <= 10000; 783#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 787#L24-2 assume !(main_~y~0 < main_~z~0); 795#L24-3 main_~y~0 := main_~x~0 + main_~y~0; 794#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 793#L24-2 assume !!(main_~y~0 < main_~z~0);main_~x~0 := 1 + main_~x~0;main_~z~0 := main_~z~0 - 1; 791#L24-2 assume !(main_~y~0 < main_~z~0); 778#L24-3 [2018-12-09 15:38:38,575 INFO L796 eck$LassoCheckResult]: Loop: 778#L24-3 main_~y~0 := main_~x~0 + main_~y~0; 779#L22-2 assume !!(main_~y~0 >= 1);main_~x~0 := main_~x~0 - 1; 789#L24-2 assume !!(main_~y~0 < main_~z~0);main_~x~0 := 1 + main_~x~0;main_~z~0 := main_~z~0 - 1; 791#L24-2 assume !(main_~y~0 < main_~z~0); 778#L24-3 [2018-12-09 15:38:38,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:38,575 INFO L82 PathProgramCache]: Analyzing trace with hash -418159556, now seen corresponding path program 6 times [2018-12-09 15:38:38,575 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:38:38,575 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:38:38,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:38,576 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:38:38,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:38,582 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:38,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1711282, now seen corresponding path program 1 times [2018-12-09 15:38:38,583 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:38:38,583 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:38:38,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:38,583 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:38:38,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:38,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:38,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1441076371, now seen corresponding path program 7 times [2018-12-09 15:38:38,587 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:38:38,587 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:38:38,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:38,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:38:38,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:38:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:38:38,627 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:38:38,627 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:38:38,627 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:38:38,628 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:38:38,628 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 15:38:38,628 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:38:38,628 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:38:38,628 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:38:38,628 INFO L131 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1_true-termination_true-no-overflow.c_Iteration6_Loop [2018-12-09 15:38:38,628 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:38:38,628 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:38:38,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:38,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:38,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:38,671 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:38:38,671 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:38,673 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:38:38,673 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:38:38,687 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:38:38,687 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/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 [2018-12-09 15:38:38,690 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:38:38,690 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:38:38,705 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:38:38,705 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/bin-2019/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:38:38,710 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:38:38,710 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77f97569-bd80-4cfe-a33b-c606b1f319de/bin-2019/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:38:38,729 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:38:38,729 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:38:39,105 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 15:38:39,107 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:38:39,107 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:38:39,107 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:38:39,107 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:38:39,107 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 15:38:39,107 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:38:39,107 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:38:39,107 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:38:39,107 INFO L131 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1_true-termination_true-no-overflow.c_Iteration6_Loop [2018-12-09 15:38:39,107 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:38:39,107 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:38:39,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:39,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:39,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:38:39,156 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:38:39,156 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 15:38:39,157 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 [2018-12-09 15:38:39,157 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:39,157 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:39,157 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:39,157 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:38:39,158 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:38:39,158 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:38:39,159 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:38:39,159 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 [2018-12-09 15:38:39,159 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:39,160 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:39,160 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:39,160 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:38:39,160 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:38:39,160 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:38:39,161 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:38:39,161 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 [2018-12-09 15:38:39,161 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:38:39,161 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:38:39,162 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:38:39,162 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:38:39,162 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:38:39,162 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:38:39,162 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:38:39,163 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 15:38:39,165 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 15:38:39,166 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 15:38:39,166 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 15:38:39,166 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 15:38:39,166 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 15:38:39,166 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-12-09 15:38:39,167 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 15:38:39,175 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:38:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:39,178 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:38:39,181 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:38:39,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:38:39,196 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-09 15:38:39,197 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 11 Second operand 5 states. [2018-12-09 15:38:39,208 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 11. Second operand 5 states. Result 35 states and 50 transitions. Complement of second has 6 states. [2018-12-09 15:38:39,208 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 [2018-12-09 15:38:39,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-09 15:38:39,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-12-09 15:38:39,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 8 letters. Loop has 4 letters. [2018-12-09 15:38:39,208 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:39,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 4 letters. [2018-12-09 15:38:39,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:39,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 8 letters. Loop has 8 letters. [2018-12-09 15:38:39,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:38:39,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 50 transitions. [2018-12-09 15:38:39,209 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 15:38:39,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2018-12-09 15:38:39,210 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-09 15:38:39,210 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-09 15:38:39,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-09 15:38:39,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 15:38:39,210 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 15:38:39,210 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 15:38:39,210 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 15:38:39,210 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-12-09 15:38:39,210 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-09 15:38:39,210 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 15:38:39,210 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-09 15:38:39,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.12 03:38:39 BoogieIcfgContainer [2018-12-09 15:38:39,214 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-09 15:38:39,214 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 15:38:39,214 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 15:38:39,215 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 15:38:39,215 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:38:29" (3/4) ... [2018-12-09 15:38:39,217 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 15:38:39,217 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 15:38:39,217 INFO L168 Benchmark]: Toolchain (without parser) took 9671.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.3 MB). Free memory was 954.4 MB in the beginning and 955.8 MB in the end (delta: -1.4 MB). Peak memory consumption was 177.9 MB. Max. memory is 11.5 GB. [2018-12-09 15:38:39,218 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:38:39,218 INFO L168 Benchmark]: CACSL2BoogieTranslator took 132.08 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.5 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-12-09 15:38:39,219 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.88 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:38:39,219 INFO L168 Benchmark]: Boogie Preprocessor took 15.19 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 939.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 15:38:39,219 INFO L168 Benchmark]: RCFGBuilder took 139.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -135.1 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-09 15:38:39,220 INFO L168 Benchmark]: BuchiAutomizer took 9359.62 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 87.6 MB). Free memory was 1.1 GB in the beginning and 955.8 MB in the end (delta: 119.1 MB). Peak memory consumption was 206.7 MB. Max. memory is 11.5 GB. [2018-12-09 15:38:39,220 INFO L168 Benchmark]: Witness Printer took 2.63 ms. Allocated memory is still 1.2 GB. Free memory is still 955.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:38:39,221 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 132.08 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.5 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.88 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.19 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 939.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 139.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -135.1 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 9359.62 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 87.6 MB). Free memory was 1.1 GB in the beginning and 955.8 MB in the end (delta: 119.1 MB). Peak memory consumption was 206.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.63 ms. Allocated memory is still 1.2 GB. Free memory is still 955.8 MB. There was no memory consumed. 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 7 terminating modules (1 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has 2-nested ranking function (if x > 0 then 1 else 0), (if x > 0 then x else y) and consists of 5 locations. One deterministic module has affine ranking function -1 * y + z and consists of 4 locations. One deterministic module has 2-nested ranking function (if x > 0 then 1 else 0), (if x > 0 then x else y + x) and consists of 5 locations. One deterministic module has affine ranking function z and consists of 4 locations. One nondeterministic module has affine ranking function z + -1 * y and consists of 4 locations. One nondeterministic module has 2-nested ranking function (if x > 0 then 1 else 0), (if x > 0 then x else x + y) and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.3s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 8.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 17 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 3. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 66 SDtfs, 68 SDslu, 8 SDs, 0 SdLazy, 143 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf97 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf93 smp97 dnf100 smp100 tf109 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 4ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 7.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...