./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/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 9a661b9ed427d2e9174ef6e6cb1f5d6d0ab8d9e2 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 13:22:13,999 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:22:14,000 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:22:14,007 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:22:14,007 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:22:14,008 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:22:14,009 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:22:14,010 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:22:14,011 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:22:14,012 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:22:14,012 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:22:14,012 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:22:14,013 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:22:14,014 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:22:14,014 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:22:14,015 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:22:14,015 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:22:14,016 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:22:14,018 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:22:14,018 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:22:14,019 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:22:14,020 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:22:14,021 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:22:14,022 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:22:14,022 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:22:14,022 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:22:14,023 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:22:14,023 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:22:14,024 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:22:14,024 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:22:14,024 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:22:14,025 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:22:14,025 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:22:14,025 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:22:14,025 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:22:14,026 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:22:14,026 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 13:22:14,034 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:22:14,035 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:22:14,035 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:22:14,036 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:22:14,036 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:22:14,036 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 13:22:14,036 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 13:22:14,036 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 13:22:14,037 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 13:22:14,037 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 13:22:14,037 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 13:22:14,037 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:22:14,037 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 13:22:14,037 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:22:14,037 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:22:14,038 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 13:22:14,038 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 13:22:14,038 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 13:22:14,038 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:22:14,038 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 13:22:14,038 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:22:14,039 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 13:22:14,039 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:22:14,039 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:22:14,039 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 13:22:14,039 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:22:14,039 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:22:14,039 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 13:22:14,040 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 13:22:14,040 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_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/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 -> 9a661b9ed427d2e9174ef6e6cb1f5d6d0ab8d9e2 [2018-11-28 13:22:14,063 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:22:14,072 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:22:14,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:22:14,076 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:22:14,076 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:22:14,076 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c [2018-11-28 13:22:14,114 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/data/8cb6353ab/756ae672c3a640bd885aaa8f7815502a/FLAG0df754621 [2018-11-28 13:22:14,512 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:22:14,512 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c [2018-11-28 13:22:14,516 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/data/8cb6353ab/756ae672c3a640bd885aaa8f7815502a/FLAG0df754621 [2018-11-28 13:22:14,527 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/data/8cb6353ab/756ae672c3a640bd885aaa8f7815502a [2018-11-28 13:22:14,530 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:22:14,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:22:14,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:22:14,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:22:14,534 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:22:14,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:22:14" (1/1) ... [2018-11-28 13:22:14,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e991360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:22:14, skipping insertion in model container [2018-11-28 13:22:14,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:22:14" (1/1) ... [2018-11-28 13:22:14,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:22:14,551 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:22:14,645 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:22:14,647 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:22:14,656 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:22:14,666 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:22:14,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:22:14 WrapperNode [2018-11-28 13:22:14,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:22:14,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:22:14,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:22:14,667 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:22:14,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:22:14" (1/1) ... [2018-11-28 13:22:14,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:22:14" (1/1) ... [2018-11-28 13:22:14,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:22:14,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:22:14,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:22:14,695 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:22:14,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:22:14" (1/1) ... [2018-11-28 13:22:14,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:22:14" (1/1) ... [2018-11-28 13:22:14,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:22:14" (1/1) ... [2018-11-28 13:22:14,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:22:14" (1/1) ... [2018-11-28 13:22:14,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:22:14" (1/1) ... [2018-11-28 13:22:14,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:22:14" (1/1) ... [2018-11-28 13:22:14,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:22:14" (1/1) ... [2018-11-28 13:22:14,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:22:14,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:22:14,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:22:14,749 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:22:14,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:22:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:22:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:22:14,882 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:22:14,882 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 13:22:14,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:22:14 BoogieIcfgContainer [2018-11-28 13:22:14,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:22:14,884 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 13:22:14,884 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 13:22:14,887 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 13:22:14,888 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:22:14,888 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 01:22:14" (1/3) ... [2018-11-28 13:22:14,889 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54a55c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 01:22:14, skipping insertion in model container [2018-11-28 13:22:14,889 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:22:14,889 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:22:14" (2/3) ... [2018-11-28 13:22:14,889 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54a55c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 01:22:14, skipping insertion in model container [2018-11-28 13:22:14,890 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:22:14,890 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:22:14" (3/3) ... [2018-11-28 13:22:14,891 INFO L375 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c [2018-11-28 13:22:14,944 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:22:14,944 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 13:22:14,945 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 13:22:14,945 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 13:22:14,945 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:22:14,945 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:22:14,945 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 13:22:14,945 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:22:14,945 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 13:22:14,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-28 13:22:14,976 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 13:22:14,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:22:14,976 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:22:14,982 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 13:22:14,982 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 13:22:14,982 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 13:22:14,982 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-28 13:22:14,983 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 13:22:14,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:22:14,983 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:22:14,983 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 13:22:14,983 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 13:22:14,990 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~K~0, main_~x~0;havoc main_~K~0;havoc main_~x~0;main_~K~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1; 5#L18-2true [2018-11-28 13:22:14,990 INFO L796 eck$LassoCheckResult]: Loop: 5#L18-2true assume !!(main_~x~0 != main_~K~0); 7#L18true assume main_~x~0 > main_~K~0;main_~x~0 := main_~x~0 - 1; 5#L18-2true [2018-11-28 13:22:14,994 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:22:14,994 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 13:22:14,995 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:22:14,996 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:22:15,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:15,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:22:15,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:15,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:22:15,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-11-28 13:22:15,076 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:22:15,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:22:15,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:15,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:22:15,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:15,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:22:15,086 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-11-28 13:22:15,086 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:22:15,086 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:22:15,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:15,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:22:15,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:15,150 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:22:15,151 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:22:15,151 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:22:15,151 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:22:15,151 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 13:22:15,151 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:15,151 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:22:15,152 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:22:15,152 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 13:22:15,152 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:22:15,152 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:22:15,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:15,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:15,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:15,256 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:22:15,256 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:15,260 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:22:15,260 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:22:15,280 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:22:15,280 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_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:15,282 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:22:15,282 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:22:15,298 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:22:15,298 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_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:15,300 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:22:15,301 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:15,322 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 13:22:15,322 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:22:15,475 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 13:22:15,476 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:22:15,476 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:22:15,476 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:22:15,476 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:22:15,476 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:22:15,476 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:15,476 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:22:15,476 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:22:15,476 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 13:22:15,477 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:22:15,477 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:22:15,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:15,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:15,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:15,559 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:22:15,562 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:22:15,564 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 13:22:15,565 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:22:15,565 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:22:15,565 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:22:15,565 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:22:15,565 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:22:15,567 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:22:15,568 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:22:15,574 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:22:15,580 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 13:22:15,580 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 13:22:15,582 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:22:15,582 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 13:22:15,583 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:22:15,583 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~K~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~K~0 Supporting invariants [] [2018-11-28 13:22:15,584 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 13:22:15,621 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:22:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:22:15,628 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:22:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:22:15,635 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:22:15,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:22:15,648 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 13:22:15,649 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2018-11-28 13:22:15,688 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 6 states. [2018-11-28 13:22:15,689 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 [2018-11-28 13:22:15,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:22:15,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-11-28 13:22:15,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-28 13:22:15,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:22:15,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 13:22:15,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:22:15,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-28 13:22:15,694 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:22:15,695 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2018-11-28 13:22:15,697 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 13:22:15,700 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2018-11-28 13:22:15,701 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-28 13:22:15,701 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-28 13:22:15,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-11-28 13:22:15,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:22:15,702 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 13:22:15,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-11-28 13:22:15,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-11-28 13:22:15,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-28 13:22:15,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-11-28 13:22:15,720 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 13:22:15,720 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 13:22:15,720 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 13:22:15,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-11-28 13:22:15,720 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 13:22:15,721 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:22:15,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:22:15,721 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 13:22:15,721 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 13:22:15,721 INFO L794 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~K~0, main_~x~0;havoc main_~K~0;havoc main_~x~0;main_~K~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1; 69#L18-2 assume !!(main_~x~0 != main_~K~0); 67#L18 assume !(main_~x~0 > main_~K~0);main_~x~0 := 1 + main_~x~0; 63#L18-2 [2018-11-28 13:22:15,721 INFO L796 eck$LassoCheckResult]: Loop: 63#L18-2 assume !!(main_~x~0 != main_~K~0); 64#L18 assume main_~x~0 > main_~K~0;main_~x~0 := main_~x~0 - 1; 63#L18-2 [2018-11-28 13:22:15,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:22:15,722 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2018-11-28 13:22:15,722 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:22:15,722 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:22:15,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:15,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:22:15,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:15,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:22:15,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2018-11-28 13:22:15,729 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:22:15,729 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:22:15,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:15,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:22:15,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:15,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:22:15,735 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2018-11-28 13:22:15,735 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:22:15,736 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:22:15,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:15,737 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:22:15,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:22:15,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:22:15,771 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:22:15,771 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:22:15,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:22:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:22:15,781 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:22:15,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:22:15,815 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:22:15,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-28 13:22:15,831 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:22:15,831 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:22:15,831 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:22:15,831 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:22:15,831 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 13:22:15,832 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:15,832 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:22:15,832 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:22:15,832 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 13:22:15,832 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:22:15,832 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:22:15,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:15,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:15,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:15,864 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:22:15,864 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:15,870 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:22:15,870 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:22:15,885 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:22:15,886 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_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:15,890 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:22:15,890 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:22:15,917 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:22:15,917 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_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:15,920 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:22:15,920 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:15,938 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 13:22:15,938 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:22:16,088 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 13:22:16,090 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:22:16,090 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:22:16,090 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:22:16,090 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:22:16,090 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:22:16,090 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:16,090 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:22:16,090 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:22:16,090 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 13:22:16,090 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:22:16,090 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:22:16,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:16,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:16,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:16,140 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:22:16,141 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:22:16,141 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 13:22:16,145 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:22:16,146 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:22:16,146 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:22:16,146 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:22:16,148 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:22:16,148 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:22:16,151 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:22:16,152 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 13:22:16,152 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:22:16,153 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:22:16,153 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:22:16,153 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:22:16,156 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:22:16,156 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:22:16,163 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:22:16,163 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 13:22:16,164 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:22:16,164 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:22:16,164 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:22:16,164 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:22:16,164 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:22:16,165 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:22:16,165 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:22:16,171 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:22:16,175 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 13:22:16,175 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 13:22:16,175 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:22:16,175 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 13:22:16,176 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:22:16,176 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~K~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~K~0 Supporting invariants [] [2018-11-28 13:22:16,176 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 13:22:16,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:22:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:22:16,196 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:22:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:22:16,199 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:22:16,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:22:16,199 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 13:22:16,200 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-28 13:22:16,209 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2018-11-28 13:22:16,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 13:22:16,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:22:16,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-28 13:22:16,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 13:22:16,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:22:16,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 13:22:16,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:22:16,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2018-11-28 13:22:16,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:22:16,211 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2018-11-28 13:22:16,212 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 13:22:16,212 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2018-11-28 13:22:16,212 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-28 13:22:16,213 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-28 13:22:16,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2018-11-28 13:22:16,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:22:16,213 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-11-28 13:22:16,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2018-11-28 13:22:16,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-28 13:22:16,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-28 13:22:16,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2018-11-28 13:22:16,214 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-11-28 13:22:16,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 13:22:16,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 13:22:16,218 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. Second operand 4 states. [2018-11-28 13:22:16,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:22:16,236 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2018-11-28 13:22:16,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:22:16,237 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2018-11-28 13:22:16,237 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 13:22:16,238 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 11 transitions. [2018-11-28 13:22:16,238 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-28 13:22:16,238 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-28 13:22:16,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2018-11-28 13:22:16,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:22:16,238 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-11-28 13:22:16,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2018-11-28 13:22:16,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2018-11-28 13:22:16,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-28 13:22:16,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2018-11-28 13:22:16,239 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-28 13:22:16,239 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-28 13:22:16,240 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 13:22:16,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2018-11-28 13:22:16,240 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 13:22:16,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:22:16,240 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:22:16,241 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 13:22:16,241 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 13:22:16,241 INFO L794 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~K~0, main_~x~0;havoc main_~K~0;havoc main_~x~0;main_~K~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1; 158#L18-2 assume !!(main_~x~0 != main_~K~0); 154#L18 [2018-11-28 13:22:16,241 INFO L796 eck$LassoCheckResult]: Loop: 154#L18 assume !(main_~x~0 > main_~K~0);main_~x~0 := 1 + main_~x~0; 153#L18-2 assume !!(main_~x~0 != main_~K~0); 154#L18 [2018-11-28 13:22:16,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:22:16,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-28 13:22:16,242 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:22:16,242 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:22:16,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:16,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:22:16,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:16,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:22:16,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2018-11-28 13:22:16,248 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:22:16,248 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:22:16,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:16,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:22:16,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:16,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:22:16,254 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 2 times [2018-11-28 13:22:16,254 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:22:16,254 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:22:16,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:16,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:22:16,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:16,280 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:22:16,280 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:22:16,280 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:22:16,280 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:22:16,280 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 13:22:16,280 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:16,280 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:22:16,281 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:22:16,281 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 13:22:16,281 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:22:16,281 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:22:16,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:16,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:16,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:16,336 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:22:16,336 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:16,350 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:22:16,350 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:22:16,378 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:22:16,378 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_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:16,383 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:22:16,383 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/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 [2018-11-28 13:22:16,407 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 13:22:16,407 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:22:18,194 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 13:22:18,196 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:22:18,196 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:22:18,196 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:22:18,196 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:22:18,196 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:22:18,196 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:18,197 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:22:18,197 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:22:18,197 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 13:22:18,197 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:22:18,197 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:22:18,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:18,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:18,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:18,247 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:22:18,247 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:22:18,247 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 13:22:18,248 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:22:18,248 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:22:18,248 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:22:18,248 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-28 13:22:18,248 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:22:18,249 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-28 13:22:18,249 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:22:18,255 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:22:18,259 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 13:22:18,260 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 13:22:18,260 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:22:18,260 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 13:22:18,260 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:22:18,260 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~K~0, ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~K~0 - 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-28 13:22:18,261 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 13:22:18,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:22:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:22:18,280 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:22:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:22:18,283 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:22:18,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:22:18,306 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 13:22:18,306 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-11-28 13:22:18,315 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 13 transitions. Complement of second has 5 states. [2018-11-28 13:22:18,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 13:22:18,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:22:18,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-28 13:22:18,316 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-28 13:22:18,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:22:18,316 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 13:22:18,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:22:18,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 4 letters. [2018-11-28 13:22:18,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:22:18,317 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2018-11-28 13:22:18,317 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 13:22:18,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2018-11-28 13:22:18,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-28 13:22:18,318 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-28 13:22:18,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2018-11-28 13:22:18,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:22:18,318 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-28 13:22:18,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2018-11-28 13:22:18,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2018-11-28 13:22:18,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-28 13:22:18,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2018-11-28 13:22:18,319 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-11-28 13:22:18,319 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-11-28 13:22:18,320 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 13:22:18,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2018-11-28 13:22:18,320 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 13:22:18,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:22:18,320 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:22:18,320 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2018-11-28 13:22:18,320 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 13:22:18,320 INFO L794 eck$LassoCheckResult]: Stem: 207#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~K~0, main_~x~0;havoc main_~K~0;havoc main_~x~0;main_~K~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1; 203#L18-2 assume !!(main_~x~0 != main_~K~0); 204#L18 assume main_~x~0 > main_~K~0;main_~x~0 := main_~x~0 - 1; 205#L18-2 assume !!(main_~x~0 != main_~K~0); 206#L18 [2018-11-28 13:22:18,320 INFO L796 eck$LassoCheckResult]: Loop: 206#L18 assume !(main_~x~0 > main_~K~0);main_~x~0 := 1 + main_~x~0; 208#L18-2 assume !!(main_~x~0 != main_~K~0); 206#L18 [2018-11-28 13:22:18,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:22:18,321 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 2 times [2018-11-28 13:22:18,321 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:22:18,321 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:22:18,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:18,322 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:22:18,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:18,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:22:18,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2018-11-28 13:22:18,327 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:22:18,327 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:22:18,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:18,328 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:22:18,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:22:18,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:22:18,332 INFO L82 PathProgramCache]: Analyzing trace with hash 925765410, now seen corresponding path program 2 times [2018-11-28 13:22:18,332 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:22:18,332 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:22:18,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:18,333 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:22:18,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:22:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:22:18,361 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:22:18,361 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:22:18,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 13:22:18,369 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:22:18,369 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:22:18,369 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:22:18,369 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:22:18,369 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 13:22:18,369 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:18,369 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:22:18,369 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:22:18,370 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-28 13:22:18,370 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:22:18,370 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:22:18,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:18,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:18,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:18,425 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:22:18,425 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/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 [2018-11-28 13:22:18,438 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:22:18,438 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d91abd5-75b4-45fd-ac5b-45fd3d2f08aa/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:18,459 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 13:22:18,459 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:22:20,647 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 13:22:20,649 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:22:20,649 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:22:20,649 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:22:20,649 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:22:20,649 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:22:20,649 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:22:20,650 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:22:20,650 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:22:20,650 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-28 13:22:20,650 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:22:20,650 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:22:20,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:20,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:20,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:22:20,718 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:22:20,718 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:22:20,718 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 13:22:20,718 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:22:20,719 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:22:20,719 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:22:20,719 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-28 13:22:20,719 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:22:20,720 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-28 13:22:20,720 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:22:20,723 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:22:20,725 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 13:22:20,725 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 13:22:20,726 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:22:20,726 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 13:22:20,726 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:22:20,726 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~K~0) = -2*ULTIMATE.start_main_~x~0 + 2*ULTIMATE.start_main_~K~0 + 1 Supporting invariants [] [2018-11-28 13:22:20,726 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 13:22:20,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:22:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:22:20,740 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:22:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:22:20,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:22:20,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:22:20,754 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 13:22:20,754 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-28 13:22:20,757 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 7 states and 8 transitions. Complement of second has 3 states. [2018-11-28 13:22:20,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2018-11-28 13:22:20,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:22:20,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2 transitions. [2018-11-28 13:22:20,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 13:22:20,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:22:20,758 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 13:22:20,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:22:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:22:20,772 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:22:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:22:20,774 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:22:20,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:22:20,783 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 13:22:20,783 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-28 13:22:20,787 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 7 states and 8 transitions. Complement of second has 3 states. [2018-11-28 13:22:20,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2018-11-28 13:22:20,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:22:20,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2 transitions. [2018-11-28 13:22:20,787 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 13:22:20,787 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:22:20,788 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 13:22:20,796 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:22:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:22:20,799 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:22:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:22:20,802 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:22:20,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:22:20,815 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 2 loop predicates [2018-11-28 13:22:20,815 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-28 13:22:20,823 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 8 states and 9 transitions. Complement of second has 4 states. [2018-11-28 13:22:20,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 13:22:20,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:22:20,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-11-28 13:22:20,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 13:22:20,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:22:20,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-28 13:22:20,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:22:20,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-28 13:22:20,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:22:20,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2018-11-28 13:22:20,827 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 13:22:20,827 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2018-11-28 13:22:20,827 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 13:22:20,827 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 13:22:20,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 13:22:20,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:22:20,828 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:22:20,828 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:22:20,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 13:22:20,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 13:22:20,828 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2018-11-28 13:22:20,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:22:20,829 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-28 13:22:20,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 13:22:20,829 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-28 13:22:20,829 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 13:22:20,829 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 13:22:20,829 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 13:22:20,829 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 13:22:20,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 13:22:20,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:22:20,830 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:22:20,830 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:22:20,830 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:22:20,830 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 13:22:20,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 13:22:20,830 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 13:22:20,830 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 13:22:20,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 01:22:20 BoogieIcfgContainer [2018-11-28 13:22:20,835 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 13:22:20,835 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:22:20,835 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:22:20,835 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:22:20,836 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:22:14" (3/4) ... [2018-11-28 13:22:20,838 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 13:22:20,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:22:20,839 INFO L168 Benchmark]: Toolchain (without parser) took 6308.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 952.2 MB in the beginning and 834.8 MB in the end (delta: 117.5 MB). Peak memory consumption was 245.9 MB. Max. memory is 11.5 GB. [2018-11-28 13:22:20,840 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:22:20,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 134.57 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 944.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2018-11-28 13:22:20,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.73 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:22:20,841 INFO L168 Benchmark]: Boogie Preprocessor took 53.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-11-28 13:22:20,842 INFO L168 Benchmark]: RCFGBuilder took 134.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-11-28 13:22:20,842 INFO L168 Benchmark]: BuchiAutomizer took 5951.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 834.8 MB in the end (delta: 277.2 MB). Peak memory consumption was 277.2 MB. Max. memory is 11.5 GB. [2018-11-28 13:22:20,843 INFO L168 Benchmark]: Witness Printer took 3.32 ms. Allocated memory is still 1.2 GB. Free memory is still 834.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:22:20,845 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 134.57 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 944.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.73 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 134.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5951.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 834.8 MB in the end (delta: 277.2 MB). Peak memory consumption was 277.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.32 ms. Allocated memory is still 1.2 GB. Free memory is still 834.8 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 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x + -1 * K and consists of 4 locations. One deterministic module has affine ranking function x + -1 * K and consists of 3 locations. One deterministic module has affine ranking function 2 * K + -2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 2 * K + 1 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 5.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 20 SDtfs, 18 SDslu, 3 SDs, 0 SdLazy, 43 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax200 hnf98 lsp49 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq165 hnf94 smp100 dnf132 smp89 tf110 neg96 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...