./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.13_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.13_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/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 79bd658ed9c5ba1aa412e80cf651fd0f09a08950 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 04:14:01,678 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:14:01,679 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:14:01,686 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:14:01,686 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:14:01,687 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:14:01,688 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:14:01,689 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:14:01,690 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:14:01,691 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:14:01,691 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:14:01,691 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:14:01,692 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:14:01,692 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:14:01,693 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:14:01,693 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:14:01,694 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:14:01,695 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:14:01,696 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:14:01,697 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:14:01,698 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:14:01,699 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:14:01,700 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:14:01,701 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:14:01,701 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:14:01,701 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:14:01,702 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:14:01,703 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:14:01,703 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:14:01,704 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:14:01,704 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:14:01,705 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:14:01,705 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:14:01,705 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:14:01,706 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:14:01,706 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:14:01,706 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-10 04:14:01,714 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:14:01,714 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:14:01,715 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 04:14:01,715 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 04:14:01,715 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 04:14:01,715 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 04:14:01,715 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 04:14:01,715 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 04:14:01,715 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 04:14:01,715 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 04:14:01,715 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 04:14:01,716 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:14:01,716 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 04:14:01,716 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:14:01,716 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:14:01,716 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 04:14:01,716 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 04:14:01,716 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 04:14:01,716 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:14:01,716 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 04:14:01,717 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 04:14:01,717 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:14:01,717 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:14:01,717 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 04:14:01,717 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:14:01,717 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 04:14:01,717 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 04:14:01,718 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 04:14:01,718 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_de53940d-a4d8-4a4d-87f3-8231090867f6/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 -> 79bd658ed9c5ba1aa412e80cf651fd0f09a08950 [2018-11-10 04:14:01,741 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:14:01,750 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:14:01,753 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:14:01,754 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:14:01,754 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:14:01,755 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.13_true-termination_true-no-overflow.c [2018-11-10 04:14:01,799 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/data/f5f733bae/6b218b04370543bbb038589141e607b9/FLAG482b00865 [2018-11-10 04:14:02,132 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:14:02,132 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/sv-benchmarks/c/termination-restricted-15/b.13_true-termination_true-no-overflow.c [2018-11-10 04:14:02,137 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/data/f5f733bae/6b218b04370543bbb038589141e607b9/FLAG482b00865 [2018-11-10 04:14:02,147 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/data/f5f733bae/6b218b04370543bbb038589141e607b9 [2018-11-10 04:14:02,149 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:14:02,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:14:02,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:14:02,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:14:02,153 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:14:02,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:14:02" (1/1) ... [2018-11-10 04:14:02,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@372d3e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:14:02, skipping insertion in model container [2018-11-10 04:14:02,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:14:02" (1/1) ... [2018-11-10 04:14:02,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:14:02,174 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:14:02,269 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:14:02,271 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:14:02,280 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:14:02,288 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:14:02,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:14:02 WrapperNode [2018-11-10 04:14:02,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:14:02,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:14:02,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:14:02,289 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:14:02,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:14:02" (1/1) ... [2018-11-10 04:14:02,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:14:02" (1/1) ... [2018-11-10 04:14:02,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:14:02,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:14:02,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:14:02,307 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:14:02,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:14:02" (1/1) ... [2018-11-10 04:14:02,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:14:02" (1/1) ... [2018-11-10 04:14:02,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:14:02" (1/1) ... [2018-11-10 04:14:02,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:14:02" (1/1) ... [2018-11-10 04:14:02,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:14:02" (1/1) ... [2018-11-10 04:14:02,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:14:02" (1/1) ... [2018-11-10 04:14:02,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:14:02" (1/1) ... [2018-11-10 04:14:02,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:14:02,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:14:02,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:14:02,318 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:14:02,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:14:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:14:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:14:02,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:14:02,473 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:14:02,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:14:02 BoogieIcfgContainer [2018-11-10 04:14:02,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:14:02,474 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 04:14:02,474 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 04:14:02,477 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 04:14:02,477 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 04:14:02,478 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 04:14:02" (1/3) ... [2018-11-10 04:14:02,478 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e365311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 04:14:02, skipping insertion in model container [2018-11-10 04:14:02,478 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 04:14:02,479 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:14:02" (2/3) ... [2018-11-10 04:14:02,479 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e365311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 04:14:02, skipping insertion in model container [2018-11-10 04:14:02,479 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 04:14:02,479 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:14:02" (3/3) ... [2018-11-10 04:14:02,480 INFO L375 chiAutomizerObserver]: Analyzing ICFG b.13_true-termination_true-no-overflow.c [2018-11-10 04:14:02,514 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 04:14:02,514 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 04:14:02,514 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 04:14:02,515 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 04:14:02,515 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:14:02,515 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:14:02,515 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 04:14:02,515 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:14:02,515 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 04:14:02,524 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-10 04:14:02,538 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 04:14:02,538 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 04:14:02,538 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 04:14:02,543 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 04:14:02,544 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 04:14:02,544 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 04:14:02,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-10 04:14:02,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 04:14:02,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 04:14:02,545 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 04:14:02,545 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 04:14:02,545 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 04:14:02,550 INFO L793 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 11#L16-2true [2018-11-10 04:14:02,550 INFO L795 eck$LassoCheckResult]: Loop: 11#L16-2true assume true; 6#L12-1true assume !!(main_~x~0 > main_~z~0 || main_~y~0 > main_~z~0); 9#L13true assume main_~x~0 > main_~z~0;main_~x~0 := main_~x~0 - 1; 11#L16-2true [2018-11-10 04:14:02,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:14:02,554 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-10 04:14:02,555 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:14:02,555 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:14:02,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:02,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:14:02,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:14:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:14:02,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:14:02,612 INFO L82 PathProgramCache]: Analyzing trace with hash 35944, now seen corresponding path program 1 times [2018-11-10 04:14:02,612 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:14:02,612 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:14:02,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:02,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:14:02,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:14:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:14:02,621 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:14:02,621 INFO L82 PathProgramCache]: Analyzing trace with hash 28694886, now seen corresponding path program 1 times [2018-11-10 04:14:02,621 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:14:02,621 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:14:02,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:02,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:14:02,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:14:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:14:02,685 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 04:14:02,686 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 04:14:02,686 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 04:14:02,686 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 04:14:02,687 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 04:14:02,687 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:14:02,687 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 04:14:02,687 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 04:14:02,687 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.13_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-10 04:14:02,687 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 04:14:02,687 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 04:14:02,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:14:02,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:14:02,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:14:02,786 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 04:14:02,786 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:14:02,790 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 04:14:02,790 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 04:14:02,809 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 04:14:02,810 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:14:02,812 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 04:14:02,813 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 04:14:02,832 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 04:14:02,832 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:14:02,835 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 04:14:02,835 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:14:02,854 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 04:14:02,854 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 04:14:03,066 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 04:14:03,067 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 04:14:03,067 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 04:14:03,067 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 04:14:03,067 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 04:14:03,067 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 04:14:03,067 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:14:03,067 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 04:14:03,067 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 04:14:03,067 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.13_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-10 04:14:03,067 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 04:14:03,068 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 04:14:03,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:14:03,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:14:03,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:14:03,125 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 04:14:03,129 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 04:14:03,131 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 04:14:03,132 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 04:14:03,132 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 04:14:03,132 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 04:14:03,133 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 04:14:03,136 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 04:14:03,136 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 04:14:03,144 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 04:14:03,144 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 04:14:03,145 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 04:14:03,145 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 04:14:03,145 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 04:14:03,145 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 04:14:03,147 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 04:14:03,147 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 04:14:03,154 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 04:14:03,155 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 04:14:03,155 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 04:14:03,156 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 04:14:03,156 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 04:14:03,156 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 04:14:03,156 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 04:14:03,157 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 04:14:03,157 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 04:14:03,161 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 04:14:03,167 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-10 04:14:03,167 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 04:14:03,169 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 04:14:03,169 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 04:14:03,169 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 04:14:03,169 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-10 04:14:03,171 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 04:14:03,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:14:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:14:03,214 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:14:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:14:03,222 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:14:03,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:14:03,232 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-10 04:14:03,233 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2018-11-10 04:14:03,270 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 25 states and 33 transitions. Complement of second has 5 states. [2018-11-10 04:14:03,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 04:14:03,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 04:14:03,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-11-10 04:14:03,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-10 04:14:03,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:14:03,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-10 04:14:03,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:14:03,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-10 04:14:03,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:14:03,276 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2018-11-10 04:14:03,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 04:14:03,280 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 13 states and 18 transitions. [2018-11-10 04:14:03,281 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-10 04:14:03,281 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-10 04:14:03,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2018-11-10 04:14:03,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 04:14:03,282 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2018-11-10 04:14:03,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2018-11-10 04:14:03,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2018-11-10 04:14:03,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-10 04:14:03,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2018-11-10 04:14:03,299 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2018-11-10 04:14:03,299 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2018-11-10 04:14:03,299 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 04:14:03,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2018-11-10 04:14:03,300 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 04:14:03,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 04:14:03,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 04:14:03,300 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-10 04:14:03,300 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 04:14:03,300 INFO L793 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 73#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 74#L16-2 assume true; 80#L12-1 [2018-11-10 04:14:03,300 INFO L795 eck$LassoCheckResult]: Loop: 80#L12-1 assume !!(main_~x~0 > main_~z~0 || main_~y~0 > main_~z~0); 81#L13 assume !(main_~x~0 > main_~z~0); 76#L16 assume main_~y~0 > main_~z~0;main_~y~0 := main_~y~0 - 1; 77#L16-2 assume true; 80#L12-1 [2018-11-10 04:14:03,300 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:14:03,300 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2018-11-10 04:14:03,300 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:14:03,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:14:03,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:03,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:14:03,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:14:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:14:03,305 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:14:03,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1297976, now seen corresponding path program 1 times [2018-11-10 04:14:03,305 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:14:03,305 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:14:03,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:03,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:14:03,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:14:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:14:03,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:14:03,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1805984218, now seen corresponding path program 1 times [2018-11-10 04:14:03,311 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:14:03,311 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:14:03,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:03,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:14:03,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:14:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:14:03,333 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 04:14:03,333 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 04:14:03,333 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 04:14:03,333 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 04:14:03,333 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 04:14:03,334 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:14:03,334 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 04:14:03,334 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 04:14:03,334 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.13_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-10 04:14:03,334 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 04:14:03,334 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 04:14:03,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:14:03,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:14:03,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:14:03,382 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 04:14:03,382 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:14:03,390 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 04:14:03,390 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 04:14:03,407 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 04:14:03,407 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:14:03,410 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 04:14:03,410 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 04:14:03,426 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 04:14:03,426 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:14:03,428 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 04:14:03,429 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de53940d-a4d8-4a4d-87f3-8231090867f6/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:14:03,447 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 04:14:03,447 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 04:14:03,779 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 04:14:03,780 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 04:14:03,780 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 04:14:03,780 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 04:14:03,780 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 04:14:03,780 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 04:14:03,780 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 04:14:03,780 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 04:14:03,780 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 04:14:03,781 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.13_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-10 04:14:03,781 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 04:14:03,781 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 04:14:03,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:14:03,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:14:03,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 04:14:03,819 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 04:14:03,819 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 04:14:03,819 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 04:14:03,820 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 04:14:03,820 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 04:14:03,820 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 04:14:03,820 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 04:14:03,822 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 04:14:03,822 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 04:14:03,825 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 04:14:03,825 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 04:14:03,825 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 04:14:03,825 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 04:14:03,826 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 04:14:03,826 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 04:14:03,827 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 04:14:03,827 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 04:14:03,831 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 04:14:03,832 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 04:14:03,832 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 04:14:03,833 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 04:14:03,833 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 04:14:03,833 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 04:14:03,833 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 04:14:03,834 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 04:14:03,834 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 04:14:03,838 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 04:14:03,842 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 04:14:03,842 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 04:14:03,842 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 04:14:03,842 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 04:14:03,842 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 04:14:03,842 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-10 04:14:03,843 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 04:14:03,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:14:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:14:03,889 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:14:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:14:03,892 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:14:03,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:14:03,907 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 04:14:03,907 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 7 Second operand 4 states. [2018-11-10 04:14:03,923 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 28 states and 39 transitions. Complement of second has 4 states. [2018-11-10 04:14:03,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 04:14:03,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 04:14:03,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-10 04:14:03,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 3 letters. Loop has 4 letters. [2018-11-10 04:14:03,924 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:14:03,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-10 04:14:03,924 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:14:03,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 3 letters. Loop has 8 letters. [2018-11-10 04:14:03,924 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 04:14:03,925 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 39 transitions. [2018-11-10 04:14:03,926 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 04:14:03,926 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 39 transitions. [2018-11-10 04:14:03,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-10 04:14:03,927 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-10 04:14:03,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 39 transitions. [2018-11-10 04:14:03,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 04:14:03,927 INFO L705 BuchiCegarLoop]: Abstraction has 28 states and 39 transitions. [2018-11-10 04:14:03,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 39 transitions. [2018-11-10 04:14:03,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2018-11-10 04:14:03,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-10 04:14:03,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 37 transitions. [2018-11-10 04:14:03,930 INFO L728 BuchiCegarLoop]: Abstraction has 26 states and 37 transitions. [2018-11-10 04:14:03,930 INFO L608 BuchiCegarLoop]: Abstraction has 26 states and 37 transitions. [2018-11-10 04:14:03,930 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 04:14:03,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 37 transitions. [2018-11-10 04:14:03,930 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 04:14:03,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 04:14:03,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 04:14:03,931 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-10 04:14:03,931 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 04:14:03,931 INFO L793 eck$LassoCheckResult]: Stem: 160#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 154#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 155#L16-2 assume true; 168#L12-1 assume !!(main_~x~0 > main_~z~0 || main_~y~0 > main_~z~0); 164#L13 [2018-11-10 04:14:03,931 INFO L795 eck$LassoCheckResult]: Loop: 164#L13 assume !(main_~x~0 > main_~z~0); 156#L16 assume !(main_~y~0 > main_~z~0); 157#L16-2 assume true; 166#L12-1 assume !!(main_~x~0 > main_~z~0 || main_~y~0 > main_~z~0); 164#L13 [2018-11-10 04:14:03,931 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:14:03,931 INFO L82 PathProgramCache]: Analyzing trace with hash 925641, now seen corresponding path program 1 times [2018-11-10 04:14:03,931 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:14:03,931 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:14:03,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:03,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:14:03,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:14:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:14:03,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:14:03,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1451308, now seen corresponding path program 1 times [2018-11-10 04:14:03,937 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:14:03,937 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:14:03,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:03,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:14:03,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:14:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:14:03,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:14:03,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:14:03,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 04:14:03,968 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-11-10 04:14:03,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 04:14:03,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 04:14:03,971 INFO L87 Difference]: Start difference. First operand 26 states and 37 transitions. cyclomatic complexity: 15 Second operand 4 states. [2018-11-10 04:14:03,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:14:03,987 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2018-11-10 04:14:03,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 04:14:03,988 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 44 transitions. [2018-11-10 04:14:03,989 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 04:14:03,989 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 0 states and 0 transitions. [2018-11-10 04:14:03,989 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 04:14:03,989 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 04:14:03,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 04:14:03,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 04:14:03,990 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 04:14:03,990 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 04:14:03,990 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 04:14:03,990 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-10 04:14:03,990 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 04:14:03,990 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 04:14:03,991 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 04:14:03,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 04:14:03 BoogieIcfgContainer [2018-11-10 04:14:03,995 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 04:14:03,996 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:14:03,996 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:14:03,996 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:14:03,996 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:14:02" (3/4) ... [2018-11-10 04:14:03,999 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 04:14:03,999 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:14:03,999 INFO L168 Benchmark]: Toolchain (without parser) took 1849.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 963.0 MB in the beginning and 997.1 MB in the end (delta: -34.1 MB). Peak memory consumption was 103.3 MB. Max. memory is 11.5 GB. [2018-11-10 04:14:04,001 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:14:04,001 INFO L168 Benchmark]: CACSL2BoogieTranslator took 138.40 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 952.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:14:04,001 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.68 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 951.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2018-11-10 04:14:04,002 INFO L168 Benchmark]: Boogie Preprocessor took 10.46 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 04:14:04,002 INFO L168 Benchmark]: RCFGBuilder took 156.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-10 04:14:04,003 INFO L168 Benchmark]: BuchiAutomizer took 1521.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.1 MB in the end (delta: 128.1 MB). Peak memory consumption was 128.1 MB. Max. memory is 11.5 GB. [2018-11-10 04:14:04,003 INFO L168 Benchmark]: Witness Printer took 3.01 ms. Allocated memory is still 1.2 GB. Free memory is still 997.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:14:04,006 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 138.40 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 952.3 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 17.68 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 951.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.46 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 156.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1521.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.1 MB in the end (delta: 128.1 MB). Peak memory consumption was 128.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.01 ms. Allocated memory is still 1.2 GB. Free memory is still 997.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * z and consists of 4 locations. One deterministic module has affine ranking function y + -1 * z 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 1.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 26 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 18 SDtfs, 21 SDslu, 8 SDs, 0 SdLazy, 31 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax202 hnf98 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...