./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/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 f9de9875f09e594325a645528f016ce12ac5c646 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 14:06:41,671 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 14:06:41,672 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 14:06:41,678 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 14:06:41,678 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 14:06:41,678 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 14:06:41,679 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 14:06:41,680 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 14:06:41,680 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 14:06:41,681 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 14:06:41,681 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 14:06:41,681 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 14:06:41,682 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 14:06:41,682 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 14:06:41,683 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 14:06:41,683 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 14:06:41,684 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 14:06:41,684 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 14:06:41,685 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 14:06:41,686 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 14:06:41,686 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 14:06:41,687 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 14:06:41,688 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 14:06:41,688 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 14:06:41,688 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 14:06:41,689 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 14:06:41,689 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 14:06:41,690 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 14:06:41,690 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 14:06:41,691 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 14:06:41,691 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 14:06:41,691 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 14:06:41,691 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 14:06:41,691 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 14:06:41,692 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 14:06:41,692 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 14:06:41,692 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-02 14:06:41,700 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 14:06:41,700 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 14:06:41,700 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 14:06:41,701 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 14:06:41,701 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 14:06:41,701 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-02 14:06:41,701 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-02 14:06:41,701 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-02 14:06:41,701 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-02 14:06:41,701 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-02 14:06:41,701 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-02 14:06:41,701 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 14:06:41,701 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 14:06:41,702 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 14:06:41,702 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 14:06:41,702 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-02 14:06:41,702 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-02 14:06:41,702 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-02 14:06:41,702 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 14:06:41,702 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-02 14:06:41,702 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 14:06:41,702 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-02 14:06:41,702 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 14:06:41,702 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 14:06:41,703 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-02 14:06:41,703 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 14:06:41,703 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 14:06:41,703 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-02 14:06:41,703 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-02 14:06:41,703 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_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/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 -> f9de9875f09e594325a645528f016ce12ac5c646 [2018-12-02 14:06:41,721 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 14:06:41,730 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 14:06:41,733 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 14:06:41,734 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 14:06:41,734 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 14:06:41,735 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-12-02 14:06:41,770 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/data/a89ce0a04/f38425e199254d8e997c23931592c049/FLAG2f08f6e45 [2018-12-02 14:06:42,199 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 14:06:42,200 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-12-02 14:06:42,203 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/data/a89ce0a04/f38425e199254d8e997c23931592c049/FLAG2f08f6e45 [2018-12-02 14:06:42,211 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/data/a89ce0a04/f38425e199254d8e997c23931592c049 [2018-12-02 14:06:42,213 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 14:06:42,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 14:06:42,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 14:06:42,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 14:06:42,216 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 14:06:42,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:06:42" (1/1) ... [2018-12-02 14:06:42,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5663953f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:06:42, skipping insertion in model container [2018-12-02 14:06:42,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:06:42" (1/1) ... [2018-12-02 14:06:42,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 14:06:42,232 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 14:06:42,314 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 14:06:42,316 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 14:06:42,325 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 14:06:42,333 INFO L195 MainTranslator]: Completed translation [2018-12-02 14:06:42,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:06:42 WrapperNode [2018-12-02 14:06:42,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 14:06:42,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 14:06:42,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 14:06:42,333 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 14:06:42,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:06:42" (1/1) ... [2018-12-02 14:06:42,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:06:42" (1/1) ... [2018-12-02 14:06:42,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 14:06:42,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 14:06:42,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 14:06:42,359 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 14:06:42,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:06:42" (1/1) ... [2018-12-02 14:06:42,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:06:42" (1/1) ... [2018-12-02 14:06:42,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:06:42" (1/1) ... [2018-12-02 14:06:42,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:06:42" (1/1) ... [2018-12-02 14:06:42,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:06:42" (1/1) ... [2018-12-02 14:06:42,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:06:42" (1/1) ... [2018-12-02 14:06:42,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:06:42" (1/1) ... [2018-12-02 14:06:42,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 14:06:42,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 14:06:42,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 14:06:42,370 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 14:06:42,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:06:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 14:06:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 14:06:42,505 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 14:06:42,505 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-02 14:06:42,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:06:42 BoogieIcfgContainer [2018-12-02 14:06:42,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 14:06:42,506 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-02 14:06:42,506 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-02 14:06:42,508 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-02 14:06:42,509 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 14:06:42,509 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 02:06:42" (1/3) ... [2018-12-02 14:06:42,509 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62032c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 02:06:42, skipping insertion in model container [2018-12-02 14:06:42,509 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 14:06:42,510 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:06:42" (2/3) ... [2018-12-02 14:06:42,510 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62032c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 02:06:42, skipping insertion in model container [2018-12-02 14:06:42,510 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 14:06:42,510 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:06:42" (3/3) ... [2018-12-02 14:06:42,511 INFO L375 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-12-02 14:06:42,543 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 14:06:42,544 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-02 14:06:42,544 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-02 14:06:42,544 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-02 14:06:42,544 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 14:06:42,544 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 14:06:42,544 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-02 14:06:42,544 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 14:06:42,544 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-02 14:06:42,553 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-12-02 14:06:42,565 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 14:06:42,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 14:06:42,565 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 14:06:42,569 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 14:06:42,569 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 14:06:42,569 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-02 14:06:42,569 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-12-02 14:06:42,570 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 14:06:42,570 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 14:06:42,570 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 14:06:42,570 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 14:06:42,570 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 14:06:42,575 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 7#L21-2true [2018-12-02 14:06:42,575 INFO L796 eck$LassoCheckResult]: Loop: 7#L21-2true assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 3#L21true assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 7#L21-2true [2018-12-02 14:06:42,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:42,579 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-02 14:06:42,580 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:06:42,580 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:06:42,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:42,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:06:42,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:42,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:42,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-12-02 14:06:42,638 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:06:42,638 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:06:42,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:42,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:06:42,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:42,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:42,646 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-12-02 14:06:42,646 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:06:42,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:06:42,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:42,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:06:42,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:42,688 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 14:06:42,689 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 14:06:42,689 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 14:06:42,689 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 14:06:42,689 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 14:06:42,689 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:42,690 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 14:06:42,690 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 14:06:42,690 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-02 14:06:42,690 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 14:06:42,690 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 14:06:42,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:42,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:42,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:42,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:42,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:42,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:42,791 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 14:06:42,792 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:42,795 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 14:06:42,795 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 14:06:42,814 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 14:06:42,814 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_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:42,817 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 14:06:42,817 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 14:06:42,832 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 14:06:42,832 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_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:42,834 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 14:06:42,834 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:42,851 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 14:06:42,851 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 14:06:42,868 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 14:06:42,869 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 14:06:42,869 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 14:06:42,869 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 14:06:42,869 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 14:06:42,869 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 14:06:42,869 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:42,869 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 14:06:42,870 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 14:06:42,870 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-02 14:06:42,870 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 14:06:42,870 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 14:06:42,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:42,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:42,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:42,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:42,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:42,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:42,931 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 14:06:42,934 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 14:06:42,935 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 14:06:42,935 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 14:06:42,936 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 14:06:42,936 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 14:06:42,936 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 14:06:42,938 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 14:06:42,938 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 14:06:42,943 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 14:06:42,943 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 14:06:42,944 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 14:06:42,944 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 14:06:42,944 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 14:06:42,944 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 14:06:42,945 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 14:06:42,945 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 14:06:42,949 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 14:06:42,949 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 14:06:42,950 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 14:06:42,950 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 14:06:42,950 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 14:06:42,950 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 14:06:42,950 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 14:06:42,951 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 14:06:42,951 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 14:06:42,954 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 14:06:42,956 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 14:06:42,956 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-02 14:06:42,957 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 14:06:42,957 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 14:06:42,957 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 14:06:42,958 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-12-02 14:06:42,958 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 14:06:42,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:42,996 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:43,004 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:43,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:06:43,026 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 14:06:43,027 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2018-12-02 14:06:43,053 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 8 states. [2018-12-02 14:06:43,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-02 14:06:43,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 14:06:43,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2018-12-02 14:06:43,055 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2018-12-02 14:06:43,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:43,056 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-02 14:06:43,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:43,056 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2018-12-02 14:06:43,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:43,057 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2018-12-02 14:06:43,058 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 14:06:43,060 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2018-12-02 14:06:43,061 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-12-02 14:06:43,061 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-12-02 14:06:43,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-12-02 14:06:43,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 14:06:43,062 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-02 14:06:43,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-12-02 14:06:43,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-12-02 14:06:43,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-02 14:06:43,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-12-02 14:06:43,077 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-02 14:06:43,077 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-02 14:06:43,077 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-02 14:06:43,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-12-02 14:06:43,078 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 14:06:43,078 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 14:06:43,078 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 14:06:43,078 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-02 14:06:43,078 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 14:06:43,078 INFO L794 eck$LassoCheckResult]: Stem: 71#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 72#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 67#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 68#L21-2 [2018-12-02 14:06:43,079 INFO L796 eck$LassoCheckResult]: Loop: 68#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 73#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 68#L21-2 [2018-12-02 14:06:43,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:43,079 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2018-12-02 14:06:43,079 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:06:43,079 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:06:43,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:43,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:06:43,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:43,086 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:43,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2018-12-02 14:06:43,086 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:06:43,086 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:06:43,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:43,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:06:43,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:43,091 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:43,091 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2018-12-02 14:06:43,091 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:06:43,091 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:06:43,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:43,092 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 14:06:43,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:43,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:43,119 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 14:06:43,119 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 14:06:43,119 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 14:06:43,119 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 14:06:43,119 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 14:06:43,119 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,120 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 14:06:43,120 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 14:06:43,120 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-02 14:06:43,120 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 14:06:43,120 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 14:06:43,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,184 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 14:06:43,184 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,186 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 14:06:43,186 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 14:06:43,201 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 14:06:43,201 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_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,204 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 14:06:43,204 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 14:06:43,207 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 14:06:43,207 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=4, ULTIMATE.start_main_~d~0=4} Honda state: {ULTIMATE.start_main_#t~nondet4=4, ULTIMATE.start_main_~d~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,222 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 14:06:43,222 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 14:06:43,225 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 14:06:43,225 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=7} Honda state: {ULTIMATE.start_main_#t~nondet3=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,240 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 14:06:43,240 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,256 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 14:06:43,256 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 14:06:43,272 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 14:06:43,273 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 14:06:43,273 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 14:06:43,273 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 14:06:43,273 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 14:06:43,273 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 14:06:43,273 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,273 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 14:06:43,273 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 14:06:43,273 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-02 14:06:43,273 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 14:06:43,273 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 14:06:43,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,335 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 14:06:43,335 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 14:06:43,335 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 14:06:43,336 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 14:06:43,336 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 14:06:43,336 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 14:06:43,337 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 14:06:43,338 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 14:06:43,338 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 14:06:43,341 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 14:06:43,341 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 14:06:43,342 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 14:06:43,342 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 14:06:43,342 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 14:06:43,342 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 14:06:43,342 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 14:06:43,343 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 14:06:43,343 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 14:06:43,346 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 14:06:43,346 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 14:06:43,347 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 14:06:43,347 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 14:06:43,347 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 14:06:43,347 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-12-02 14:06:43,347 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 14:06:43,348 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-12-02 14:06:43,348 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 14:06:43,351 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 14:06:43,351 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 14:06:43,352 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 14:06:43,352 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 14:06:43,352 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 14:06:43,352 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 14:06:43,352 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 14:06:43,353 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 14:06:43,353 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 14:06:43,356 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 14:06:43,358 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 14:06:43,358 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-02 14:06:43,359 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 14:06:43,359 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 14:06:43,359 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 14:06:43,359 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-12-02 14:06:43,359 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 14:06:43,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:43,382 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:43,385 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:43,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:06:43,394 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 14:06:43,394 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-12-02 14:06:43,401 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. [2018-12-02 14:06:43,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 14:06:43,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 14:06:43,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-12-02 14:06:43,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-02 14:06:43,403 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:43,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-12-02 14:06:43,403 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:43,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2018-12-02 14:06:43,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:43,404 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2018-12-02 14:06:43,404 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 14:06:43,405 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2018-12-02 14:06:43,405 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-12-02 14:06:43,405 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-12-02 14:06:43,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2018-12-02 14:06:43,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 14:06:43,405 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-12-02 14:06:43,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2018-12-02 14:06:43,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-12-02 14:06:43,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-02 14:06:43,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2018-12-02 14:06:43,407 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-12-02 14:06:43,407 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-12-02 14:06:43,407 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-02 14:06:43,407 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2018-12-02 14:06:43,407 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 14:06:43,407 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 14:06:43,407 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 14:06:43,408 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2018-12-02 14:06:43,408 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 14:06:43,408 INFO L794 eck$LassoCheckResult]: Stem: 125#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 126#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 121#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 122#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 129#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 127#L21-2 [2018-12-02 14:06:43,408 INFO L796 eck$LassoCheckResult]: Loop: 127#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 128#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 127#L21-2 [2018-12-02 14:06:43,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:43,408 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2018-12-02 14:06:43,408 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:06:43,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:06:43,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:43,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:06:43,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:43,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:43,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2018-12-02 14:06:43,417 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:06:43,417 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:06:43,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:43,418 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 14:06:43,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:43,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:43,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1364196307, now seen corresponding path program 2 times [2018-12-02 14:06:43,421 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:06:43,421 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:06:43,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:43,422 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 14:06:43,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:43,445 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 14:06:43,445 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 14:06:43,445 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 14:06:43,446 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 14:06:43,446 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 14:06:43,446 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,446 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 14:06:43,446 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 14:06:43,446 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-02 14:06:43,446 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 14:06:43,446 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 14:06:43,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,499 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 14:06:43,499 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,501 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 14:06:43,501 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 14:06:43,505 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 14:06:43,505 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=7} Honda state: {ULTIMATE.start_main_#t~nondet3=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,520 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 14:06:43,520 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 14:06:43,535 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 14:06:43,535 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_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,537 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 14:06:43,537 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 14:06:43,540 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 14:06:43,540 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=4, ULTIMATE.start_main_~d~0=4} Honda state: {ULTIMATE.start_main_#t~nondet4=4, ULTIMATE.start_main_~d~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,555 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 14:06:43,555 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 14:06:43,569 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 14:06:43,569 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,572 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 14:06:43,572 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 14:06:43,587 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 14:06:43,587 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,590 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 14:06:43,590 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,606 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 14:06:43,606 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 14:06:43,621 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 14:06:43,622 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 14:06:43,622 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 14:06:43,622 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 14:06:43,623 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 14:06:43,623 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 14:06:43,623 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,623 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 14:06:43,623 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 14:06:43,623 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-02 14:06:43,623 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 14:06:43,623 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 14:06:43,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,676 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 14:06:43,677 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 14:06:43,677 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 14:06:43,678 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 14:06:43,678 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 14:06:43,678 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 14:06:43,678 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-12-02 14:06:43,678 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 14:06:43,679 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-12-02 14:06:43,679 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 14:06:43,681 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 14:06:43,682 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 14:06:43,682 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 14:06:43,682 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 14:06:43,683 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 14:06:43,683 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 14:06:43,684 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 14:06:43,684 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 14:06:43,687 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 14:06:43,687 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 14:06:43,688 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 14:06:43,688 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 14:06:43,688 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 14:06:43,688 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 14:06:43,688 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 14:06:43,689 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 14:06:43,689 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 14:06:43,691 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 14:06:43,691 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 14:06:43,691 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 14:06:43,691 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 14:06:43,691 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 14:06:43,691 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 14:06:43,692 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 14:06:43,692 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 14:06:43,692 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 14:06:43,692 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 14:06:43,693 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 14:06:43,693 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 14:06:43,693 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 14:06:43,693 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 14:06:43,693 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 14:06:43,694 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 14:06:43,694 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 14:06:43,695 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 14:06:43,696 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 14:06:43,696 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 14:06:43,696 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 14:06:43,696 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 14:06:43,696 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 14:06:43,696 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 14:06:43,697 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 14:06:43,697 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 14:06:43,699 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 14:06:43,700 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 14:06:43,700 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-02 14:06:43,700 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 14:06:43,700 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 14:06:43,701 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 14:06:43,701 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-12-02 14:06:43,701 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 14:06:43,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:43,720 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:43,724 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:43,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:06:43,731 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 14:06:43,731 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-12-02 14:06:43,738 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2018-12-02 14:06:43,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 14:06:43,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 14:06:43,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-12-02 14:06:43,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-12-02 14:06:43,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:43,739 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-02 14:06:43,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:43,751 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:43,763 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:43,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:06:43,773 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 [2018-12-02 14:06:43,773 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-12-02 14:06:43,782 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2018-12-02 14:06:43,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 14:06:43,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 14:06:43,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-12-02 14:06:43,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-12-02 14:06:43,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:43,783 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-02 14:06:43,799 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:43,804 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:43,808 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:43,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:06:43,814 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 [2018-12-02 14:06:43,814 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-12-02 14:06:43,820 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 15 states and 23 transitions. Complement of second has 4 states. [2018-12-02 14:06:43,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 14:06:43,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 14:06:43,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-12-02 14:06:43,821 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2018-12-02 14:06:43,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:43,821 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2018-12-02 14:06:43,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:43,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2018-12-02 14:06:43,822 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:43,822 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2018-12-02 14:06:43,823 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-02 14:06:43,823 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2018-12-02 14:06:43,823 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-12-02 14:06:43,823 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-12-02 14:06:43,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2018-12-02 14:06:43,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 14:06:43,823 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2018-12-02 14:06:43,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2018-12-02 14:06:43,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2018-12-02 14:06:43,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-02 14:06:43,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2018-12-02 14:06:43,824 INFO L728 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-12-02 14:06:43,824 INFO L608 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-12-02 14:06:43,825 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-02 14:06:43,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2018-12-02 14:06:43,825 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-02 14:06:43,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 14:06:43,825 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 14:06:43,825 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 14:06:43,825 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 14:06:43,825 INFO L794 eck$LassoCheckResult]: Stem: 272#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 269#L21-2 [2018-12-02 14:06:43,825 INFO L796 eck$LassoCheckResult]: Loop: 269#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 268#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 269#L21-2 [2018-12-02 14:06:43,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:43,826 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-12-02 14:06:43,826 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:06:43,826 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:06:43,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:43,827 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 14:06:43,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:43,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:43,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2018-12-02 14:06:43,830 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:06:43,830 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:06:43,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:43,831 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 14:06:43,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:43,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:43,834 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 3 times [2018-12-02 14:06:43,834 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:06:43,834 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:06:43,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:43,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:06:43,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:43,856 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 14:06:43,856 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 14:06:43,856 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 14:06:43,856 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 14:06:43,856 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 14:06:43,857 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,857 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 14:06:43,857 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 14:06:43,857 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration4_Loop [2018-12-02 14:06:43,857 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 14:06:43,857 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 14:06:43,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,916 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 14:06:43,916 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,918 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 14:06:43,918 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,945 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 14:06:43,945 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 14:06:43,960 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 14:06:43,961 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 14:06:43,961 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 14:06:43,961 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 14:06:43,961 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 14:06:43,961 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 14:06:43,962 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:43,962 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 14:06:43,962 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 14:06:43,962 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration4_Loop [2018-12-02 14:06:43,962 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 14:06:43,962 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 14:06:43,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:43,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,018 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 14:06:44,018 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 14:06:44,018 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 14:06:44,019 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 14:06:44,019 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 14:06:44,019 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 14:06:44,019 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 14:06:44,019 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 14:06:44,019 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 14:06:44,019 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 14:06:44,021 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 14:06:44,021 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 14:06:44,022 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-02 14:06:44,022 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 14:06:44,022 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 14:06:44,022 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 14:06:44,022 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0) = 1*ULTIMATE.start_main_~d~0 Supporting invariants [] [2018-12-02 14:06:44,022 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 14:06:44,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:44,032 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:44,035 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:44,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:06:44,039 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 14:06:44,039 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-12-02 14:06:44,044 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 11 states and 17 transitions. Complement of second has 5 states. [2018-12-02 14:06:44,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 14:06:44,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 14:06:44,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2018-12-02 14:06:44,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 2 letters. [2018-12-02 14:06:44,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:44,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-02 14:06:44,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:44,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 4 letters. [2018-12-02 14:06:44,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:44,045 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2018-12-02 14:06:44,046 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-02 14:06:44,046 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 13 transitions. [2018-12-02 14:06:44,046 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-12-02 14:06:44,046 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-12-02 14:06:44,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2018-12-02 14:06:44,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 14:06:44,046 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-12-02 14:06:44,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2018-12-02 14:06:44,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2018-12-02 14:06:44,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-02 14:06:44,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2018-12-02 14:06:44,047 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2018-12-02 14:06:44,047 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2018-12-02 14:06:44,047 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-02 14:06:44,047 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 12 transitions. [2018-12-02 14:06:44,047 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-02 14:06:44,047 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 14:06:44,047 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 14:06:44,048 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2018-12-02 14:06:44,048 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 14:06:44,048 INFO L794 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 319#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 320#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 321#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 314#L21 [2018-12-02 14:06:44,049 INFO L796 eck$LassoCheckResult]: Loop: 314#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 315#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 314#L21 [2018-12-02 14:06:44,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:44,049 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 2 times [2018-12-02 14:06:44,049 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:06:44,049 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:06:44,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:44,049 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 14:06:44,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:44,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:44,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2018-12-02 14:06:44,054 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:06:44,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:06:44,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:44,054 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 14:06:44,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:44,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:44,057 INFO L82 PathProgramCache]: Analyzing trace with hash 925765410, now seen corresponding path program 3 times [2018-12-02 14:06:44,057 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:06:44,057 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:06:44,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:44,057 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 14:06:44,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:44,083 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 14:06:44,083 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 14:06:44,083 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 14:06:44,083 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 14:06:44,083 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 14:06:44,083 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:44,083 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 14:06:44,083 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 14:06:44,083 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration5_Loop [2018-12-02 14:06:44,083 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 14:06:44,084 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 14:06:44,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,128 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 14:06:44,128 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:44,130 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 14:06:44,130 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:44,145 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 14:06:44,145 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 14:06:44,194 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 14:06:44,195 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 14:06:44,195 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 14:06:44,195 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 14:06:44,195 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 14:06:44,195 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 14:06:44,195 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:44,195 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 14:06:44,195 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 14:06:44,195 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration5_Loop [2018-12-02 14:06:44,195 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 14:06:44,196 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 14:06:44,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,245 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 14:06:44,245 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 14:06:44,245 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 14:06:44,246 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 14:06:44,246 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 14:06:44,246 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 14:06:44,246 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 14:06:44,247 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 14:06:44,247 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 14:06:44,248 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 14:06:44,249 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 14:06:44,249 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 14:06:44,249 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 14:06:44,249 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 14:06:44,249 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 14:06:44,249 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 14:06:44,250 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 14:06:44,250 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 14:06:44,252 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 14:06:44,254 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 14:06:44,254 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-02 14:06:44,254 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 14:06:44,254 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 14:06:44,255 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 14:06:44,255 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0) = 1*ULTIMATE.start_main_~d~0 Supporting invariants [] [2018-12-02 14:06:44,255 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 14:06:44,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:44,266 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:44,268 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:44,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:06:44,279 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 14:06:44,279 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-12-02 14:06:44,291 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 10 states and 14 transitions. Complement of second has 5 states. [2018-12-02 14:06:44,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 14:06:44,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 14:06:44,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2018-12-02 14:06:44,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2018-12-02 14:06:44,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:44,292 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-02 14:06:44,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:44,300 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:44,303 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:44,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:06:44,307 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 [2018-12-02 14:06:44,307 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-12-02 14:06:44,313 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 10 states and 14 transitions. Complement of second has 5 states. [2018-12-02 14:06:44,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 14:06:44,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 14:06:44,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2018-12-02 14:06:44,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2018-12-02 14:06:44,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:44,314 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-02 14:06:44,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:44,325 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:44,328 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:44,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:06:44,334 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 [2018-12-02 14:06:44,334 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-12-02 14:06:44,351 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 13 states and 19 transitions. Complement of second has 4 states. [2018-12-02 14:06:44,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 14:06:44,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 14:06:44,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-12-02 14:06:44,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2018-12-02 14:06:44,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:44,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2018-12-02 14:06:44,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:44,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2018-12-02 14:06:44,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:44,352 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 19 transitions. [2018-12-02 14:06:44,353 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-12-02 14:06:44,353 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 11 states and 16 transitions. [2018-12-02 14:06:44,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-12-02 14:06:44,353 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-12-02 14:06:44,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2018-12-02 14:06:44,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 14:06:44,353 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-12-02 14:06:44,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2018-12-02 14:06:44,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2018-12-02 14:06:44,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-02 14:06:44,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-12-02 14:06:44,355 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-02 14:06:44,355 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-02 14:06:44,355 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-12-02 14:06:44,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-12-02 14:06:44,355 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-12-02 14:06:44,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 14:06:44,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 14:06:44,355 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2018-12-02 14:06:44,356 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2018-12-02 14:06:44,356 INFO L794 eck$LassoCheckResult]: Stem: 445#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 446#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 443#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 444#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 441#L21 [2018-12-02 14:06:44,356 INFO L796 eck$LassoCheckResult]: Loop: 441#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 442#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 443#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 444#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 441#L21 [2018-12-02 14:06:44,356 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:44,356 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 3 times [2018-12-02 14:06:44,356 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:06:44,356 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:06:44,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:44,357 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 14:06:44,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:44,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:44,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2018-12-02 14:06:44,363 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:06:44,363 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:06:44,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:44,364 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 14:06:44,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:44,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:44,368 INFO L82 PathProgramCache]: Analyzing trace with hash 602329151, now seen corresponding path program 4 times [2018-12-02 14:06:44,368 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 14:06:44,368 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 14:06:44,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:44,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:06:44,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:06:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:06:44,408 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 14:06:44,408 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 14:06:44,408 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 14:06:44,409 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 14:06:44,409 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 14:06:44,409 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:44,409 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 14:06:44,409 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 14:06:44,409 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration6_Loop [2018-12-02 14:06:44,409 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 14:06:44,409 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 14:06:44,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,460 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 14:06:44,460 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:44,462 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 14:06:44,462 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b234cffd-fb12-4dad-8bd5-51af6bbc88a0/bin-2019/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:44,478 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 14:06:44,478 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 14:06:44,517 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 14:06:44,518 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 14:06:44,519 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 14:06:44,519 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 14:06:44,519 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 14:06:44,519 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 14:06:44,519 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 14:06:44,519 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 14:06:44,519 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 14:06:44,519 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration6_Loop [2018-12-02 14:06:44,519 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 14:06:44,519 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 14:06:44,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 14:06:44,569 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 14:06:44,570 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 14:06:44,570 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 14:06:44,570 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 14:06:44,570 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 14:06:44,570 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 14:06:44,570 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 14:06:44,570 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 14:06:44,571 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 14:06:44,571 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 14:06:44,572 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 14:06:44,574 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 14:06:44,574 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-02 14:06:44,574 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 14:06:44,575 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 14:06:44,575 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 14:06:44,575 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-12-02 14:06:44,575 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 14:06:44,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:06:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:44,588 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:06:44,591 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 14:06:44,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:06:44,600 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-02 14:06:44,600 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 4 Second operand 4 states. [2018-12-02 14:06:44,609 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 20 states and 29 transitions. Complement of second has 6 states. [2018-12-02 14:06:44,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-02 14:06:44,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-02 14:06:44,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-12-02 14:06:44,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2018-12-02 14:06:44,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:44,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2018-12-02 14:06:44,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:44,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 8 letters. [2018-12-02 14:06:44,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 14:06:44,610 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 29 transitions. [2018-12-02 14:06:44,611 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 14:06:44,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2018-12-02 14:06:44,611 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-02 14:06:44,611 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-02 14:06:44,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-02 14:06:44,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 14:06:44,611 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 14:06:44,611 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 14:06:44,611 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 14:06:44,611 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-12-02 14:06:44,611 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-02 14:06:44,612 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 14:06:44,612 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-02 14:06:44,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 02:06:44 BoogieIcfgContainer [2018-12-02 14:06:44,616 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-02 14:06:44,617 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 14:06:44,617 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 14:06:44,617 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 14:06:44,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:06:42" (3/4) ... [2018-12-02 14:06:44,619 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 14:06:44,619 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 14:06:44,620 INFO L168 Benchmark]: Toolchain (without parser) took 2406.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 957.1 MB in the beginning and 877.2 MB in the end (delta: 79.9 MB). Peak memory consumption was 171.1 MB. Max. memory is 11.5 GB. [2018-12-02 14:06:44,621 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 14:06:44,621 INFO L168 Benchmark]: CACSL2BoogieTranslator took 118.98 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 945.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-02 14:06:44,621 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.10 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 14:06:44,622 INFO L168 Benchmark]: Boogie Preprocessor took 11.31 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 14:06:44,622 INFO L168 Benchmark]: RCFGBuilder took 135.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -137.6 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-02 14:06:44,623 INFO L168 Benchmark]: BuchiAutomizer took 2110.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 877.2 MB in the end (delta: 200.3 MB). Peak memory consumption was 200.3 MB. Max. memory is 11.5 GB. [2018-12-02 14:06:44,623 INFO L168 Benchmark]: Witness Printer took 2.82 ms. Allocated memory is still 1.1 GB. Free memory is still 877.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 14:06:44,625 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 118.98 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 945.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.10 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.31 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 135.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -137.6 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2110.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 877.2 MB in the end (delta: 200.3 MB). Peak memory consumption was 200.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.82 ms. Allocated memory is still 1.1 GB. Free memory is still 877.2 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 (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function d and consists of 3 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function d and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 41 SDtfs, 27 SDslu, 8 SDs, 0 SdLazy, 57 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital25 mio100 ax147 hnf100 lsp27 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq157 hnf93 smp100 dnf100 smp100 tf113 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...