./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/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 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 04:48:36,683 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 04:48:36,684 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 04:48:36,691 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 04:48:36,691 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 04:48:36,692 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 04:48:36,692 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 04:48:36,693 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 04:48:36,694 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 04:48:36,695 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 04:48:36,696 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 04:48:36,696 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 04:48:36,697 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 04:48:36,698 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 04:48:36,698 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 04:48:36,699 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 04:48:36,700 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 04:48:36,701 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 04:48:36,702 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 04:48:36,703 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 04:48:36,704 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 04:48:36,705 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 04:48:36,707 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 04:48:36,707 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 04:48:36,708 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 04:48:36,708 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 04:48:36,709 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 04:48:36,709 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 04:48:36,710 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 04:48:36,711 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 04:48:36,711 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 04:48:36,711 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 04:48:36,711 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 04:48:36,712 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 04:48:36,712 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 04:48:36,713 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 04:48:36,713 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 04:48:36,725 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 04:48:36,725 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 04:48:36,726 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 04:48:36,726 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 04:48:36,726 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 04:48:36,726 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 04:48:36,726 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 04:48:36,727 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 04:48:36,727 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 04:48:36,727 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 04:48:36,727 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 04:48:36,727 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 04:48:36,727 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 04:48:36,727 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 04:48:36,727 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 04:48:36,728 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 04:48:36,728 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 04:48:36,728 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 04:48:36,728 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 04:48:36,728 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 04:48:36,729 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 04:48:36,729 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 04:48:36,730 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 04:48:36,730 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 04:48:36,730 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 04:48:36,730 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 04:48:36,730 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 04:48:36,730 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 04:48:36,731 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 04:48:36,731 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_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/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 -> 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 [2018-11-23 04:48:36,756 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 04:48:36,765 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 04:48:36,768 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 04:48:36,769 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 04:48:36,769 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 04:48:36,770 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c [2018-11-23 04:48:36,813 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/data/45ade3771/d51462d5d6ea41dd9caf23b6a8e0ffce/FLAG1c2e7b70e [2018-11-23 04:48:37,204 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 04:48:37,204 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c [2018-11-23 04:48:37,208 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/data/45ade3771/d51462d5d6ea41dd9caf23b6a8e0ffce/FLAG1c2e7b70e [2018-11-23 04:48:37,218 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/data/45ade3771/d51462d5d6ea41dd9caf23b6a8e0ffce [2018-11-23 04:48:37,219 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 04:48:37,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 04:48:37,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 04:48:37,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 04:48:37,223 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 04:48:37,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:48:37" (1/1) ... [2018-11-23 04:48:37,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@495e8f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:37, skipping insertion in model container [2018-11-23 04:48:37,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:48:37" (1/1) ... [2018-11-23 04:48:37,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 04:48:37,246 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 04:48:37,355 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:48:37,357 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 04:48:37,365 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:48:37,373 INFO L195 MainTranslator]: Completed translation [2018-11-23 04:48:37,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:37 WrapperNode [2018-11-23 04:48:37,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 04:48:37,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 04:48:37,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 04:48:37,374 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 04:48:37,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:37" (1/1) ... [2018-11-23 04:48:37,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:37" (1/1) ... [2018-11-23 04:48:37,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 04:48:37,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 04:48:37,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 04:48:37,391 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 04:48:37,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:37" (1/1) ... [2018-11-23 04:48:37,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:37" (1/1) ... [2018-11-23 04:48:37,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:37" (1/1) ... [2018-11-23 04:48:37,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:37" (1/1) ... [2018-11-23 04:48:37,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:37" (1/1) ... [2018-11-23 04:48:37,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:37" (1/1) ... [2018-11-23 04:48:37,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:37" (1/1) ... [2018-11-23 04:48:37,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 04:48:37,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 04:48:37,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 04:48:37,401 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 04:48:37,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:37,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 04:48:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 04:48:37,550 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 04:48:37,550 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-23 04:48:37,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:48:37 BoogieIcfgContainer [2018-11-23 04:48:37,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 04:48:37,551 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 04:48:37,551 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 04:48:37,554 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 04:48:37,555 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 04:48:37,555 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 04:48:37" (1/3) ... [2018-11-23 04:48:37,555 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4228488a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 04:48:37, skipping insertion in model container [2018-11-23 04:48:37,556 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 04:48:37,556 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:37" (2/3) ... [2018-11-23 04:48:37,556 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4228488a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 04:48:37, skipping insertion in model container [2018-11-23 04:48:37,556 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 04:48:37,556 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:48:37" (3/3) ... [2018-11-23 04:48:37,557 INFO L375 chiAutomizerObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c [2018-11-23 04:48:37,599 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 04:48:37,599 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 04:48:37,599 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 04:48:37,599 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 04:48:37,599 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 04:48:37,599 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 04:48:37,600 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 04:48:37,600 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 04:48:37,600 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 04:48:37,610 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-23 04:48:37,626 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 04:48:37,626 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:48:37,626 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:48:37,632 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 04:48:37,632 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:48:37,632 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 04:48:37,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-23 04:48:37,633 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 04:48:37,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:48:37,634 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:48:37,634 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 04:48:37,634 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:48:37,640 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 10#L27-2true [2018-11-23 04:48:37,641 INFO L796 eck$LassoCheckResult]: Loop: 10#L27-2true assume !!(0 != main_~x~0 && main_~y~0 > 0); 7#L19true assume !(main_~x~0 > 0); 5#L27true assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~x~0 := 1 + main_~x~0; 10#L27-2true [2018-11-23 04:48:37,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:37,645 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-23 04:48:37,646 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:48:37,647 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:48:37,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:37,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:48:37,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:37,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:37,710 INFO L82 PathProgramCache]: Analyzing trace with hash 40076, now seen corresponding path program 1 times [2018-11-23 04:48:37,710 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:48:37,710 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:48:37,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:37,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:48:37,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:37,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:37,718 INFO L82 PathProgramCache]: Analyzing trace with hash 963597, now seen corresponding path program 1 times [2018-11-23 04:48:37,718 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:48:37,718 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:48:37,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:37,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:48:37,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:37,763 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:48:37,763 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:48:37,763 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:48:37,764 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:48:37,764 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 04:48:37,764 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:37,764 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:48:37,764 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:48:37,764 INFO L131 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 04:48:37,765 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:48:37,765 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:48:37,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:37,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:37,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:37,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:37,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:37,889 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:48:37,890 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:37,901 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:37,901 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:37,919 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:48:37,919 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_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:37,922 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:37,922 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:37,938 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:48:37,938 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_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:37,942 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:37,942 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:37,958 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 04:48:37,958 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:37,974 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 04:48:37,975 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:48:37,975 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:48:37,975 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:48:37,975 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:48:37,975 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:48:37,975 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:37,975 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:48:37,975 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:48:37,975 INFO L131 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 04:48:37,975 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:48:37,976 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:48:37,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:37,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:37,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:37,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:37,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,032 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:48:38,035 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:48:38,037 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 04:48:38,038 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:48:38,038 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:48:38,038 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:48:38,038 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:48:38,041 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 04:48:38,042 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 04:48:38,048 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:48:38,048 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 04:48:38,048 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:48:38,049 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:48:38,049 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:48:38,049 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:48:38,049 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:48:38,050 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:48:38,050 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:48:38,054 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:48:38,057 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:48:38,057 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 04:48:38,059 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:48:38,059 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 04:48:38,059 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:48:38,059 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-23 04:48:38,060 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 04:48:38,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:38,099 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:38,106 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:38,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:48:38,124 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 04:48:38,125 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 4 states. [2018-11-23 04:48:38,164 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 4 states. Result 33 states and 49 transitions. Complement of second has 8 states. [2018-11-23 04:48:38,165 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 [2018-11-23 04:48:38,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 04:48:38,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2018-11-23 04:48:38,167 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 1 letters. Loop has 3 letters. [2018-11-23 04:48:38,168 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:38,168 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-23 04:48:38,168 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:38,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 1 letters. Loop has 6 letters. [2018-11-23 04:48:38,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:38,169 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 49 transitions. [2018-11-23 04:48:38,171 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-23 04:48:38,174 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 16 states and 25 transitions. [2018-11-23 04:48:38,175 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-23 04:48:38,175 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-23 04:48:38,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 25 transitions. [2018-11-23 04:48:38,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:48:38,176 INFO L705 BuchiCegarLoop]: Abstraction has 16 states and 25 transitions. [2018-11-23 04:48:38,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 25 transitions. [2018-11-23 04:48:38,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2018-11-23 04:48:38,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-23 04:48:38,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 23 transitions. [2018-11-23 04:48:38,193 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 23 transitions. [2018-11-23 04:48:38,193 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 23 transitions. [2018-11-23 04:48:38,193 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 04:48:38,193 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 23 transitions. [2018-11-23 04:48:38,194 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-23 04:48:38,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:48:38,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:48:38,194 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 04:48:38,194 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:48:38,194 INFO L794 eck$LassoCheckResult]: Stem: 82#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 83#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 94#L19 [2018-11-23 04:48:38,194 INFO L796 eck$LassoCheckResult]: Loop: 94#L19 assume main_~x~0 > 0; 95#L20 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~y~0 := main_~y~0 - 1; 96#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 94#L19 [2018-11-23 04:48:38,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:38,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-23 04:48:38,195 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:48:38,195 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:48:38,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:38,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:48:38,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:38,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:38,200 INFO L82 PathProgramCache]: Analyzing trace with hash 42852, now seen corresponding path program 1 times [2018-11-23 04:48:38,201 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:48:38,201 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:48:38,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:38,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:48:38,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:38,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:38,207 INFO L82 PathProgramCache]: Analyzing trace with hash 29863643, now seen corresponding path program 1 times [2018-11-23 04:48:38,207 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:48:38,207 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:48:38,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:38,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:48:38,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:38,247 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:48:38,248 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:48:38,248 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:48:38,248 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:48:38,248 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 04:48:38,248 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:38,248 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:48:38,248 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:48:38,248 INFO L131 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-23 04:48:38,248 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:48:38,248 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:48:38,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,306 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:48:38,306 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:38,314 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:38,314 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:38,331 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:48:38,332 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_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:38,338 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:38,338 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:38,353 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:48:38,353 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:38,355 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:38,355 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:38,371 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:48:38,371 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=1} Honda state: {ULTIMATE.start_main_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:38,374 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:38,374 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:38,377 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:48:38,377 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:38,392 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:38,392 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:38,408 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 04:48:38,409 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:38,456 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 04:48:38,457 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:48:38,457 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:48:38,457 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:48:38,457 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:48:38,457 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:48:38,458 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:38,458 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:48:38,458 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:48:38,458 INFO L131 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-23 04:48:38,458 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:48:38,458 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:48:38,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,544 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:48:38,544 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:48:38,544 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 04:48:38,545 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:48:38,545 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:48:38,545 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:48:38,546 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:48:38,547 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 04:48:38,547 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 04:48:38,551 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:48:38,551 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 04:48:38,552 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:48:38,552 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:48:38,552 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:48:38,552 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:48:38,554 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 04:48:38,554 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 04:48:38,559 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:48:38,559 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 04:48:38,560 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:48:38,560 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:48:38,560 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:48:38,560 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:48:38,560 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:48:38,561 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:48:38,561 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:48:38,561 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:48:38,562 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 04:48:38,562 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:48:38,562 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:48:38,563 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:48:38,563 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:48:38,563 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:48:38,563 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:48:38,563 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:48:38,565 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:48:38,565 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 04:48:38,565 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:48:38,565 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:48:38,566 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:48:38,566 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:48:38,566 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:48:38,566 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:48:38,566 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:48:38,569 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:48:38,572 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:48:38,572 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 04:48:38,573 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:48:38,573 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 04:48:38,573 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:48:38,573 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-23 04:48:38,573 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 04:48:38,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:38,590 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:38,592 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:38,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:48:38,601 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 04:48:38,601 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 23 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-11-23 04:48:38,618 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 23 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 42 states and 70 transitions. Complement of second has 7 states. [2018-11-23 04:48:38,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 04:48:38,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 04:48:38,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-11-23 04:48:38,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-23 04:48:38,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:38,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-23 04:48:38,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:38,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-23 04:48:38,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:38,621 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 70 transitions. [2018-11-23 04:48:38,622 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-23 04:48:38,622 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 36 states and 56 transitions. [2018-11-23 04:48:38,623 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2018-11-23 04:48:38,623 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-11-23 04:48:38,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 56 transitions. [2018-11-23 04:48:38,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:48:38,623 INFO L705 BuchiCegarLoop]: Abstraction has 36 states and 56 transitions. [2018-11-23 04:48:38,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 56 transitions. [2018-11-23 04:48:38,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2018-11-23 04:48:38,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-23 04:48:38,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 52 transitions. [2018-11-23 04:48:38,625 INFO L728 BuchiCegarLoop]: Abstraction has 32 states and 52 transitions. [2018-11-23 04:48:38,626 INFO L608 BuchiCegarLoop]: Abstraction has 32 states and 52 transitions. [2018-11-23 04:48:38,626 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 04:48:38,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 52 transitions. [2018-11-23 04:48:38,627 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-23 04:48:38,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:48:38,627 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:48:38,627 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 04:48:38,627 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:48:38,627 INFO L794 eck$LassoCheckResult]: Stem: 178#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 179#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 189#L19 assume main_~x~0 > 0; 185#L20 assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1;main_~y~0 := main_#t~nondet3;havoc main_#t~nondet3; 192#L27-2 [2018-11-23 04:48:38,627 INFO L796 eck$LassoCheckResult]: Loop: 192#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 209#L19 assume !(main_~x~0 > 0); 208#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~x~0 := 1 + main_~x~0; 192#L27-2 [2018-11-23 04:48:38,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:38,628 INFO L82 PathProgramCache]: Analyzing trace with hash 963341, now seen corresponding path program 1 times [2018-11-23 04:48:38,628 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:48:38,628 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:48:38,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:38,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:48:38,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:38,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:38,634 INFO L82 PathProgramCache]: Analyzing trace with hash 40076, now seen corresponding path program 2 times [2018-11-23 04:48:38,634 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:48:38,634 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:48:38,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:38,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:48:38,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:38,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:38,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1365869056, now seen corresponding path program 1 times [2018-11-23 04:48:38,638 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:48:38,638 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:48:38,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:38,639 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 04:48:38,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:38,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:48:38,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:48:38,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 04:48:38,702 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:48:38,702 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:48:38,702 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:48:38,702 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:48:38,702 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 04:48:38,702 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:38,702 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:48:38,702 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:48:38,703 INFO L131 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-23 04:48:38,703 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:48:38,703 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:48:38,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,761 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:48:38,761 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:38,764 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:38,765 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:38,770 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:48:38,770 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=-1} Honda state: {ULTIMATE.start_main_#t~nondet4=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:38,785 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:38,785 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:38,799 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:48:38,799 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_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:38,801 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:38,802 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:38,816 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:48:38,816 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_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:38,819 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:38,820 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:38,835 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 04:48:38,835 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:38,851 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 04:48:38,851 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:48:38,851 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:48:38,852 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:48:38,852 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:48:38,852 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:48:38,852 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:38,852 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:48:38,852 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:48:38,852 INFO L131 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-23 04:48:38,852 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:48:38,852 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:48:38,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:38,914 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:48:38,914 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:48:38,914 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 04:48:38,915 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:48:38,915 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:48:38,915 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:48:38,915 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-23 04:48:38,916 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:48:38,916 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-23 04:48:38,916 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:48:38,919 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:48:38,919 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 04:48:38,920 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:48:38,920 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:48:38,920 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:48:38,920 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:48:38,920 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:48:38,921 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:48:38,921 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:48:38,923 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:48:38,924 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 04:48:38,924 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:48:38,924 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:48:38,925 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:48:38,925 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:48:38,926 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 04:48:38,926 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 04:48:38,929 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:48:38,930 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 04:48:38,930 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:48:38,930 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:48:38,930 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:48:38,931 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:48:38,931 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:48:38,931 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:48:38,931 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:48:38,933 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:48:38,935 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:48:38,935 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 04:48:38,936 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:48:38,936 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 04:48:38,936 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:48:38,936 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-23 04:48:38,936 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 04:48:38,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:38,954 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:38,956 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:38,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:48:38,961 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 04:48:38,961 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 52 transitions. cyclomatic complexity: 26 Second operand 4 states. [2018-11-23 04:48:38,975 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 52 transitions. cyclomatic complexity: 26. Second operand 4 states. Result 43 states and 69 transitions. Complement of second has 7 states. [2018-11-23 04:48:38,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 04:48:38,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 04:48:38,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-11-23 04:48:38,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-23 04:48:38,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:38,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-23 04:48:38,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:38,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 6 letters. [2018-11-23 04:48:38,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:38,977 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 69 transitions. [2018-11-23 04:48:38,977 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2018-11-23 04:48:38,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 43 states and 69 transitions. [2018-11-23 04:48:38,978 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2018-11-23 04:48:38,978 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-11-23 04:48:38,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 69 transitions. [2018-11-23 04:48:38,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:48:38,978 INFO L705 BuchiCegarLoop]: Abstraction has 43 states and 69 transitions. [2018-11-23 04:48:38,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 69 transitions. [2018-11-23 04:48:38,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2018-11-23 04:48:38,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-23 04:48:38,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 67 transitions. [2018-11-23 04:48:38,980 INFO L728 BuchiCegarLoop]: Abstraction has 42 states and 67 transitions. [2018-11-23 04:48:38,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 04:48:38,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:48:38,983 INFO L87 Difference]: Start difference. First operand 42 states and 67 transitions. Second operand 4 states. [2018-11-23 04:48:38,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:48:38,996 INFO L93 Difference]: Finished difference Result 42 states and 62 transitions. [2018-11-23 04:48:38,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 04:48:38,996 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 62 transitions. [2018-11-23 04:48:38,997 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2018-11-23 04:48:38,998 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 36 states and 53 transitions. [2018-11-23 04:48:38,998 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2018-11-23 04:48:38,998 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-11-23 04:48:38,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 53 transitions. [2018-11-23 04:48:38,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:48:38,998 INFO L705 BuchiCegarLoop]: Abstraction has 36 states and 53 transitions. [2018-11-23 04:48:38,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 53 transitions. [2018-11-23 04:48:39,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2018-11-23 04:48:39,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-23 04:48:39,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 43 transitions. [2018-11-23 04:48:39,002 INFO L728 BuchiCegarLoop]: Abstraction has 28 states and 43 transitions. [2018-11-23 04:48:39,002 INFO L608 BuchiCegarLoop]: Abstraction has 28 states and 43 transitions. [2018-11-23 04:48:39,002 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 04:48:39,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 43 transitions. [2018-11-23 04:48:39,003 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 04:48:39,003 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:48:39,003 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:48:39,003 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 04:48:39,004 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:48:39,004 INFO L794 eck$LassoCheckResult]: Stem: 384#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 385#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 410#L19 assume main_~x~0 > 0; 395#L20 assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1;main_~y~0 := main_#t~nondet3;havoc main_#t~nondet3; 393#L27-2 [2018-11-23 04:48:39,004 INFO L796 eck$LassoCheckResult]: Loop: 393#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 390#L19 assume main_~x~0 > 0; 391#L20 assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1;main_~y~0 := main_#t~nondet3;havoc main_#t~nondet3; 393#L27-2 [2018-11-23 04:48:39,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:39,004 INFO L82 PathProgramCache]: Analyzing trace with hash 963341, now seen corresponding path program 2 times [2018-11-23 04:48:39,004 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:48:39,004 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:48:39,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:39,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:48:39,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:39,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:39,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:39,008 INFO L82 PathProgramCache]: Analyzing trace with hash 39820, now seen corresponding path program 1 times [2018-11-23 04:48:39,009 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:48:39,009 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:48:39,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:39,009 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 04:48:39,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:39,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:39,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1365869312, now seen corresponding path program 3 times [2018-11-23 04:48:39,013 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:48:39,013 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:48:39,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:39,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:48:39,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:39,040 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:48:39,041 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:48:39,041 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:48:39,041 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:48:39,041 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 04:48:39,041 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:39,041 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:48:39,041 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:48:39,041 INFO L131 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-23 04:48:39,041 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:48:39,041 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:48:39,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,081 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:48:39,081 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:39,085 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:39,085 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:39,099 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:48:39,099 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:39,102 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:39,102 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:39,117 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 04:48:39,117 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:39,133 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 04:48:39,133 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:48:39,134 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:48:39,134 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:48:39,134 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:48:39,134 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:48:39,134 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:39,134 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:48:39,134 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:48:39,134 INFO L131 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-23 04:48:39,134 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:48:39,134 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:48:39,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,178 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:48:39,178 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:48:39,179 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 04:48:39,179 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:48:39,179 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:48:39,179 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:48:39,180 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:48:39,180 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:48:39,180 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:48:39,180 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:48:39,183 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:48:39,184 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:48:39,184 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 04:48:39,185 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:48:39,185 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 04:48:39,185 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:48:39,185 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-23 04:48:39,185 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 04:48:39,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:39,198 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:39,201 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:39,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:48:39,206 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 04:48:39,207 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 43 transitions. cyclomatic complexity: 21 Second operand 4 states. [2018-11-23 04:48:39,217 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 43 transitions. cyclomatic complexity: 21. Second operand 4 states. Result 35 states and 52 transitions. Complement of second has 6 states. [2018-11-23 04:48:39,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 04:48:39,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 04:48:39,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-11-23 04:48:39,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-23 04:48:39,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:39,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-23 04:48:39,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:39,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 6 letters. [2018-11-23 04:48:39,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:39,219 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 52 transitions. [2018-11-23 04:48:39,220 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 04:48:39,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 35 states and 52 transitions. [2018-11-23 04:48:39,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-11-23 04:48:39,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-11-23 04:48:39,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 52 transitions. [2018-11-23 04:48:39,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:48:39,221 INFO L705 BuchiCegarLoop]: Abstraction has 35 states and 52 transitions. [2018-11-23 04:48:39,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 52 transitions. [2018-11-23 04:48:39,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-11-23 04:48:39,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-23 04:48:39,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 50 transitions. [2018-11-23 04:48:39,223 INFO L728 BuchiCegarLoop]: Abstraction has 33 states and 50 transitions. [2018-11-23 04:48:39,224 INFO L608 BuchiCegarLoop]: Abstraction has 33 states and 50 transitions. [2018-11-23 04:48:39,224 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-23 04:48:39,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 50 transitions. [2018-11-23 04:48:39,224 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 04:48:39,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:48:39,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:48:39,226 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2018-11-23 04:48:39,226 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:48:39,226 INFO L794 eck$LassoCheckResult]: Stem: 491#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 492#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 518#L19 assume main_~x~0 > 0; 498#L20 assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1;main_~y~0 := main_#t~nondet3;havoc main_#t~nondet3; 521#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 502#L19 [2018-11-23 04:48:39,226 INFO L796 eck$LassoCheckResult]: Loop: 502#L19 assume main_~x~0 > 0; 504#L20 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~y~0 := main_~y~0 - 1; 501#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 502#L19 [2018-11-23 04:48:39,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:39,226 INFO L82 PathProgramCache]: Analyzing trace with hash 29863581, now seen corresponding path program 4 times [2018-11-23 04:48:39,227 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:48:39,227 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:48:39,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:39,228 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 04:48:39,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:39,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:39,234 INFO L82 PathProgramCache]: Analyzing trace with hash 42852, now seen corresponding path program 2 times [2018-11-23 04:48:39,234 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:48:39,234 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:48:39,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:39,235 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 04:48:39,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:39,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:39,256 INFO L82 PathProgramCache]: Analyzing trace with hash 607724360, now seen corresponding path program 1 times [2018-11-23 04:48:39,256 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:48:39,256 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:48:39,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:39,261 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 04:48:39,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:39,291 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:48:39,291 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:48:39,291 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:48:39,291 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:48:39,291 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 04:48:39,291 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:39,291 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:48:39,291 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:48:39,291 INFO L131 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-23 04:48:39,292 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:48:39,292 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:48:39,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,321 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:48:39,321 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:39,326 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:39,326 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:39,328 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:48:39,328 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:39,343 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:39,343 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:39,360 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 04:48:39,360 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:39,399 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 04:48:39,401 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:48:39,401 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:48:39,401 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:48:39,401 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:48:39,401 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:48:39,401 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:39,401 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:48:39,401 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:48:39,401 INFO L131 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-23 04:48:39,401 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:48:39,401 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:48:39,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,432 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:48:39,432 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:48:39,432 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 04:48:39,433 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:48:39,433 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:48:39,433 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:48:39,433 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:48:39,433 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:48:39,434 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:48:39,434 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:48:39,434 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:48:39,435 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 04:48:39,435 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:48:39,435 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:48:39,435 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:48:39,435 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:48:39,436 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 04:48:39,436 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 04:48:39,438 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:48:39,438 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 04:48:39,439 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:48:39,439 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:48:39,439 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:48:39,439 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:48:39,439 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:48:39,439 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:48:39,439 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:48:39,441 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:48:39,443 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:48:39,443 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 04:48:39,443 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:48:39,443 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 04:48:39,443 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:48:39,443 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-23 04:48:39,443 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 04:48:39,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:39,461 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:39,465 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:39,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:48:39,472 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 04:48:39,472 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 50 transitions. cyclomatic complexity: 24 Second operand 4 states. [2018-11-23 04:48:39,485 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 50 transitions. cyclomatic complexity: 24. Second operand 4 states. Result 57 states and 89 transitions. Complement of second has 7 states. [2018-11-23 04:48:39,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 04:48:39,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 04:48:39,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-11-23 04:48:39,486 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-23 04:48:39,486 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:39,486 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 04:48:39,494 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:39,497 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:39,501 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:39,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:48:39,509 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 04:48:39,509 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 50 transitions. cyclomatic complexity: 24 Second operand 4 states. [2018-11-23 04:48:39,521 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 50 transitions. cyclomatic complexity: 24. Second operand 4 states. Result 57 states and 89 transitions. Complement of second has 7 states. [2018-11-23 04:48:39,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 04:48:39,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 04:48:39,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-11-23 04:48:39,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-23 04:48:39,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:39,521 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 04:48:39,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:39,530 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:39,532 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:39,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:48:39,539 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 04:48:39,539 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 50 transitions. cyclomatic complexity: 24 Second operand 4 states. [2018-11-23 04:48:39,552 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 50 transitions. cyclomatic complexity: 24. Second operand 4 states. Result 59 states and 92 transitions. Complement of second has 8 states. [2018-11-23 04:48:39,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 04:48:39,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 04:48:39,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-11-23 04:48:39,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-23 04:48:39,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:39,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 3 letters. [2018-11-23 04:48:39,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:39,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 6 letters. [2018-11-23 04:48:39,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:39,553 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 92 transitions. [2018-11-23 04:48:39,554 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 04:48:39,554 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 17 states and 21 transitions. [2018-11-23 04:48:39,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-23 04:48:39,554 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-23 04:48:39,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 21 transitions. [2018-11-23 04:48:39,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 04:48:39,555 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2018-11-23 04:48:39,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 21 transitions. [2018-11-23 04:48:39,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2018-11-23 04:48:39,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-23 04:48:39,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2018-11-23 04:48:39,555 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2018-11-23 04:48:39,555 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2018-11-23 04:48:39,556 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-23 04:48:39,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2018-11-23 04:48:39,556 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 04:48:39,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 04:48:39,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 04:48:39,556 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2018-11-23 04:48:39,556 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 04:48:39,556 INFO L794 eck$LassoCheckResult]: Stem: 812#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 813#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 818#L19 assume !(main_~x~0 > 0); 819#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 825#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 823#L19 assume !(main_~x~0 > 0); 814#L27 [2018-11-23 04:48:39,557 INFO L796 eck$LassoCheckResult]: Loop: 814#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~x~0 := 1 + main_~x~0; 815#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 824#L19 assume !(main_~x~0 > 0); 814#L27 [2018-11-23 04:48:39,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:39,557 INFO L82 PathProgramCache]: Analyzing trace with hash 926018970, now seen corresponding path program 1 times [2018-11-23 04:48:39,557 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:48:39,557 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:48:39,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:39,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:48:39,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:39,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:39,562 INFO L82 PathProgramCache]: Analyzing trace with hash 53186, now seen corresponding path program 3 times [2018-11-23 04:48:39,562 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:48:39,562 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:48:39,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:39,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:48:39,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:39,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:39,566 INFO L82 PathProgramCache]: Analyzing trace with hash 456216457, now seen corresponding path program 1 times [2018-11-23 04:48:39,566 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 04:48:39,566 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 04:48:39,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:39,567 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 04:48:39,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:48:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:48:39,583 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:48:39,583 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:48:39,583 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:48:39,583 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:48:39,583 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 04:48:39,583 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:39,583 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:48:39,583 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:48:39,583 INFO L131 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-23 04:48:39,584 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:48:39,584 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:48:39,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,624 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:48:39,624 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/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 [2018-11-23 04:48:39,634 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:39,634 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:39,637 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:48:39,637 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=-1} Honda state: {ULTIMATE.start_main_#t~nondet4=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:39,653 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:39,653 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:39,667 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:48:39,667 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:39,670 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:39,670 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:39,684 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 04:48:39,684 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:39,688 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 04:48:39,688 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ca2e3d8-4d54-4b41-8a32-8e960b5ffa1a/bin-2019/uautomizer/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:39,704 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 04:48:39,705 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 04:48:39,755 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 04:48:39,756 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 04:48:39,757 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 04:48:39,757 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 04:48:39,757 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 04:48:39,757 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 04:48:39,757 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 04:48:39,757 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 04:48:39,757 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 04:48:39,757 INFO L131 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-23 04:48:39,757 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 04:48:39,757 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 04:48:39,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 04:48:39,795 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 04:48:39,795 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 04:48:39,795 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 04:48:39,796 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:48:39,796 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:48:39,796 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:48:39,796 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-23 04:48:39,796 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:48:39,797 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-23 04:48:39,797 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:48:39,799 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:48:39,799 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 04:48:39,799 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:48:39,799 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:48:39,799 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:48:39,800 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:48:39,800 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 04:48:39,800 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 04:48:39,802 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 04:48:39,803 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 04:48:39,803 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 04:48:39,803 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 04:48:39,803 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 04:48:39,803 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 04:48:39,803 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 04:48:39,804 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 04:48:39,804 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 04:48:39,805 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 04:48:39,807 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 04:48:39,807 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 04:48:39,807 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 04:48:39,807 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 04:48:39,807 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 04:48:39,807 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-23 04:48:39,808 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 04:48:39,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:39,822 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:39,824 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:39,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:48:39,828 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 04:48:39,828 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-11-23 04:48:39,836 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 22 states and 26 transitions. Complement of second has 5 states. [2018-11-23 04:48:39,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 04:48:39,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 04:48:39,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-23 04:48:39,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-23 04:48:39,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:39,838 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 04:48:39,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:39,846 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:39,848 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:39,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:48:39,852 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 04:48:39,852 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-11-23 04:48:39,860 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 22 states and 26 transitions. Complement of second has 5 states. [2018-11-23 04:48:39,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 04:48:39,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 04:48:39,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-23 04:48:39,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-23 04:48:39,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:39,861 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 04:48:39,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:48:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:39,870 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:48:39,872 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:48:39,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:48:39,876 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 04:48:39,876 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-11-23 04:48:39,885 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 27 states and 32 transitions. Complement of second has 4 states. [2018-11-23 04:48:39,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 04:48:39,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 04:48:39,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-23 04:48:39,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-23 04:48:39,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:39,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-23 04:48:39,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:39,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-23 04:48:39,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 04:48:39,887 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2018-11-23 04:48:39,888 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 04:48:39,888 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2018-11-23 04:48:39,888 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 04:48:39,888 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 04:48:39,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 04:48:39,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 04:48:39,888 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:48:39,888 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:48:39,888 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:48:39,888 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-23 04:48:39,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 04:48:39,889 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 04:48:39,889 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 04:48:39,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 04:48:39 BoogieIcfgContainer [2018-11-23 04:48:39,894 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 04:48:39,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 04:48:39,894 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 04:48:39,894 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 04:48:39,894 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:48:37" (3/4) ... [2018-11-23 04:48:39,897 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 04:48:39,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 04:48:39,897 INFO L168 Benchmark]: Toolchain (without parser) took 2677.35 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 223.3 MB). Free memory was 958.5 MB in the beginning and 1.1 GB in the end (delta: -95.3 MB). Peak memory consumption was 128.1 MB. Max. memory is 11.5 GB. [2018-11-23 04:48:39,898 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:48:39,898 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.91 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 04:48:39,898 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.81 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 04:48:39,899 INFO L168 Benchmark]: Boogie Preprocessor took 10.25 ms. Allocated memory is still 1.0 GB. Free memory is still 945.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:48:39,899 INFO L168 Benchmark]: RCFGBuilder took 149.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-23 04:48:39,899 INFO L168 Benchmark]: BuchiAutomizer took 2342.71 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 82.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 70.1 MB). Peak memory consumption was 152.9 MB. Max. memory is 11.5 GB. [2018-11-23 04:48:39,900 INFO L168 Benchmark]: Witness Printer took 2.62 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:48:39,901 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 152.91 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.81 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.25 ms. Allocated memory is still 1.0 GB. Free memory is still 945.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 149.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2342.71 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 82.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 70.1 MB). Peak memory consumption was 152.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.62 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (1 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -1 * x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function -1 * x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function -1 * x and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 33 states and ocurred in iteration 4. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 76 SDtfs, 73 SDslu, 32 SDs, 0 SdLazy, 117 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax162 hnf98 lsp38 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq165 hnf94 smp84 dnf100 smp100 tf112 neg97 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 14 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...