./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/c.01_assume_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_208fabc3-501d-4723-a7d0-a0c332d58122/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/c.01_assume_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/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 da7ccbcfff0bcaf24fe1bd516f01da1d9e0ab2a4 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:08:36,833 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 08:08:36,834 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 08:08:36,841 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 08:08:36,841 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 08:08:36,842 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 08:08:36,842 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 08:08:36,844 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 08:08:36,845 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 08:08:36,845 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 08:08:36,846 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 08:08:36,846 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 08:08:36,846 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 08:08:36,847 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 08:08:36,848 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 08:08:36,848 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 08:08:36,848 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 08:08:36,850 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 08:08:36,851 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 08:08:36,852 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 08:08:36,852 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 08:08:36,853 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 08:08:36,855 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 08:08:36,855 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 08:08:36,855 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 08:08:36,856 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 08:08:36,856 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 08:08:36,856 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 08:08:36,857 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 08:08:36,858 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 08:08:36,858 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 08:08:36,858 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 08:08:36,858 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 08:08:36,859 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 08:08:36,859 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 08:08:36,860 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 08:08:36,860 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 08:08:36,868 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 08:08:36,869 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 08:08:36,870 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 08:08:36,870 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 08:08:36,870 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 08:08:36,870 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 08:08:36,870 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 08:08:36,870 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 08:08:36,870 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 08:08:36,871 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 08:08:36,871 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 08:08:36,871 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 08:08:36,871 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 08:08:36,871 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 08:08:36,871 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 08:08:36,871 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 08:08:36,871 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 08:08:36,872 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 08:08:36,872 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 08:08:36,872 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 08:08:36,872 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 08:08:36,872 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 08:08:36,872 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 08:08:36,872 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 08:08:36,873 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 08:08:36,873 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 08:08:36,873 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 08:08:36,873 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 08:08:36,874 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 08:08:36,874 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_208fabc3-501d-4723-a7d0-a0c332d58122/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 -> da7ccbcfff0bcaf24fe1bd516f01da1d9e0ab2a4 [2018-11-23 08:08:36,896 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 08:08:36,905 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 08:08:36,907 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 08:08:36,908 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 08:08:36,909 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 08:08:36,909 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/c.01_assume_true-termination_true-no-overflow.c [2018-11-23 08:08:36,948 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/bin-2019/uautomizer/data/45236c50b/c1b78be1c1054738aa737a9732836283/FLAGd2eae4b3a [2018-11-23 08:08:37,360 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 08:08:37,361 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/sv-benchmarks/c/termination-restricted-15/c.01_assume_true-termination_true-no-overflow.c [2018-11-23 08:08:37,365 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/bin-2019/uautomizer/data/45236c50b/c1b78be1c1054738aa737a9732836283/FLAGd2eae4b3a [2018-11-23 08:08:37,376 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/bin-2019/uautomizer/data/45236c50b/c1b78be1c1054738aa737a9732836283 [2018-11-23 08:08:37,378 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 08:08:37,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 08:08:37,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 08:08:37,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 08:08:37,382 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 08:08:37,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:08:37" (1/1) ... [2018-11-23 08:08:37,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@337624aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37, skipping insertion in model container [2018-11-23 08:08:37,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:08:37" (1/1) ... [2018-11-23 08:08:37,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 08:08:37,403 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 08:08:37,501 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:08:37,503 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 08:08:37,512 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:08:37,519 INFO L195 MainTranslator]: Completed translation [2018-11-23 08:08:37,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37 WrapperNode [2018-11-23 08:08:37,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 08:08:37,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 08:08:37,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 08:08:37,520 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 08:08:37,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2018-11-23 08:08:37,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2018-11-23 08:08:37,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 08:08:37,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 08:08:37,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 08:08:37,537 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 08:08:37,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2018-11-23 08:08:37,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2018-11-23 08:08:37,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2018-11-23 08:08:37,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2018-11-23 08:08:37,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2018-11-23 08:08:37,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2018-11-23 08:08:37,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2018-11-23 08:08:37,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 08:08:37,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 08:08:37,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 08:08:37,548 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 08:08:37,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/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 08:08:37,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 08:08:37,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 08:08:37,695 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 08:08:37,695 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 08:08:37,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:37 BoogieIcfgContainer [2018-11-23 08:08:37,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 08:08:37,696 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 08:08:37,696 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 08:08:37,699 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 08:08:37,700 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 08:08:37,700 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 08:08:37" (1/3) ... [2018-11-23 08:08:37,701 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6790a1da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 08:08:37, skipping insertion in model container [2018-11-23 08:08:37,701 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 08:08:37,701 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (2/3) ... [2018-11-23 08:08:37,701 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6790a1da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 08:08:37, skipping insertion in model container [2018-11-23 08:08:37,701 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 08:08:37,701 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:37" (3/3) ... [2018-11-23 08:08:37,703 INFO L375 chiAutomizerObserver]: Analyzing ICFG c.01_assume_true-termination_true-no-overflow.c [2018-11-23 08:08:37,738 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 08:08:37,738 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 08:08:37,738 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 08:08:37,738 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 08:08:37,738 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 08:08:37,738 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 08:08:37,739 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 08:08:37,739 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 08:08:37,739 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 08:08:37,747 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-23 08:08:37,760 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 08:08:37,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 08:08:37,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 08:08:37,764 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 08:08:37,764 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 08:08:37,765 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 08:08:37,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-23 08:08:37,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-23 08:08:37,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 08:08:37,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 08:08:37,766 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 08:08:37,766 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 08:08:37,770 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L9-2true [2018-11-23 08:08:37,770 INFO L796 eck$LassoCheckResult]: Loop: 6#L9-2true assume !!(main_~x~0 >= 0 && main_~y~0 > 0);main_~y~0 := 1; 10#L11-2true assume !((main_~x~0 > main_~y~0 && main_~y~0 > 0) && main_~y~0 < 1073741824); 8#L11-3true main_~x~0 := main_~x~0 - 1; 6#L9-2true [2018-11-23 08:08:37,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:08:37,774 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-23 08:08:37,775 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:08:37,775 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:08:37,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:08:37,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:08:37,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:08:37,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:08:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:08:37,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:08:37,833 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2018-11-23 08:08:37,833 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:08:37,833 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:08:37,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:08:37,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:08:37,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:08:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:08:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:08:37,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:08:37,846 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2018-11-23 08:08:37,846 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:08:37,846 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:08:37,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:08:37,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:08:37,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:08:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:08:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:08:37,916 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 08:08:37,917 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 08:08:37,917 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 08:08:37,917 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 08:08:37,918 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 08:08:37,918 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:08:37,918 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 08:08:37,918 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 08:08:37,918 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01_assume_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 08:08:37,918 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 08:08:37,918 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 08:08:37,940 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 08:08:37,950 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 08:08:37,958 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 08:08:38,043 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 08:08:38,043 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/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 08:08:38,053 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:08:38,053 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:08:38,076 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 08:08:38,077 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_208fabc3-501d-4723-a7d0-a0c332d58122/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 08:08:38,079 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:08:38,079 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:08:38,094 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 08:08:38,094 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_208fabc3-501d-4723-a7d0-a0c332d58122/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 08:08:38,096 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:08:38,096 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/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 08:08:38,113 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 08:08:38,113 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:08:38,131 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 08:08:38,132 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 08:08:38,133 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 08:08:38,133 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 08:08:38,133 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 08:08:38,133 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 08:08:38,133 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:08:38,133 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 08:08:38,133 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 08:08:38,133 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01_assume_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 08:08:38,133 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 08:08:38,133 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 08:08:38,134 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 08:08:38,136 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 08:08:38,138 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 08:08:38,226 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 08:08:38,229 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 08:08:38,230 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 08:08:38,231 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:08:38,231 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:08:38,231 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:08:38,231 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:08:38,233 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 08:08:38,233 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 08:08:38,238 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:08:38,239 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 08:08:38,239 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:08:38,240 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:08:38,240 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:08:38,240 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:08:38,242 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 08:08:38,242 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 08:08:38,248 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:08:38,248 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 08:08:38,249 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:08:38,249 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:08:38,249 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:08:38,250 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:08:38,250 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:08:38,250 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:08:38,251 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:08:38,256 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 08:08:38,261 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 08:08:38,261 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 08:08:38,263 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 08:08:38,263 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 08:08:38,263 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 08:08:38,263 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-23 08:08:38,264 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 08:08:38,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:08:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:08:38,283 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:08:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:08:38,290 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:08:38,316 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 08:08:38,326 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 08:08:38,327 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-11-23 08:08:38,366 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2018-11-23 08:08:38,366 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 08:08:38,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 08:08:38,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2018-11-23 08:08:38,369 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2018-11-23 08:08:38,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:08:38,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-23 08:08:38,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:08:38,371 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2018-11-23 08:08:38,371 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:08:38,371 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2018-11-23 08:08:38,373 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 08:08:38,376 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2018-11-23 08:08:38,377 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-23 08:08:38,377 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-23 08:08:38,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-11-23 08:08:38,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 08:08:38,377 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-23 08:08:38,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-11-23 08:08:38,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2018-11-23 08:08:38,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 08:08:38,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2018-11-23 08:08:38,394 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-11-23 08:08:38,394 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-11-23 08:08:38,394 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 08:08:38,394 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2018-11-23 08:08:38,395 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 08:08:38,395 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 08:08:38,395 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 08:08:38,395 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 08:08:38,395 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 08:08:38,395 INFO L794 eck$LassoCheckResult]: Stem: 70#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 71#L9-2 assume !!(main_~x~0 >= 0 && main_~y~0 > 0);main_~y~0 := 1; 73#L11-2 [2018-11-23 08:08:38,395 INFO L796 eck$LassoCheckResult]: Loop: 73#L11-2 assume !!((main_~x~0 > main_~y~0 && main_~y~0 > 0) && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 73#L11-2 [2018-11-23 08:08:38,396 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:08:38,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-23 08:08:38,396 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:08:38,396 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:08:38,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:08:38,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:08:38,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:08:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:08:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:08:38,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:08:38,401 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-11-23 08:08:38,401 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:08:38,401 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:08:38,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:08:38,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:08:38,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:08:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:08:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:08:38,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:08:38,407 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2018-11-23 08:08:38,407 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:08:38,407 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:08:38,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:08:38,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:08:38,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:08:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:08:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:08:38,426 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 08:08:38,426 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 08:08:38,426 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 08:08:38,426 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 08:08:38,426 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 08:08:38,426 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:08:38,426 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 08:08:38,426 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 08:08:38,426 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01_assume_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-23 08:08:38,426 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 08:08:38,426 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 08:08:38,427 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 08:08:38,429 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 08:08:38,431 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 08:08:38,477 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 08:08:38,477 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/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 08:08:38,479 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:08:38,479 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:08:38,493 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 08:08:38,493 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_208fabc3-501d-4723-a7d0-a0c332d58122/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 08:08:38,497 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:08:38,498 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:08:38,525 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 08:08:38,526 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_208fabc3-501d-4723-a7d0-a0c332d58122/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 08:08:38,531 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:08:38,532 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/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 08:08:38,565 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 08:08:38,565 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:08:38,584 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 08:08:38,585 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 08:08:38,585 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 08:08:38,585 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 08:08:38,586 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 08:08:38,586 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 08:08:38,586 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:08:38,586 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 08:08:38,586 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 08:08:38,586 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01_assume_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-23 08:08:38,586 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 08:08:38,586 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 08:08:38,587 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 08:08:38,589 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 08:08:38,595 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 08:08:38,703 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 08:08:38,703 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 08:08:38,703 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 08:08:38,704 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:08:38,704 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:08:38,704 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:08:38,705 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:08:38,706 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 08:08:38,706 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 08:08:38,711 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:08:38,712 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 08:08:38,712 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:08:38,712 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:08:38,714 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:08:38,714 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:08:38,714 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:08:38,715 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:08:38,715 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:08:38,721 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 08:08:38,724 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 08:08:38,725 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 08:08:38,725 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 08:08:38,725 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 08:08:38,725 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 08:08:38,726 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483647 Supporting invariants [] [2018-11-23 08:08:38,726 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 08:08:38,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:08:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:08:38,751 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:08:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:08:38,754 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:08:38,754 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 08:08:38,755 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 [2018-11-23 08:08:38,755 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2018-11-23 08:08:38,760 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 5 states. [2018-11-23 08:08:38,761 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 08:08:38,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 08:08:38,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-23 08:08:38,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2018-11-23 08:08:38,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:08:38,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-23 08:08:38,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:08:38,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-23 08:08:38,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:08:38,762 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2018-11-23 08:08:38,763 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 08:08:38,763 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 13 transitions. [2018-11-23 08:08:38,764 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-23 08:08:38,764 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-11-23 08:08:38,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2018-11-23 08:08:38,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 08:08:38,764 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-11-23 08:08:38,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2018-11-23 08:08:38,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2018-11-23 08:08:38,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 08:08:38,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2018-11-23 08:08:38,765 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-23 08:08:38,765 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-23 08:08:38,765 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 08:08:38,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2018-11-23 08:08:38,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 08:08:38,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 08:08:38,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 08:08:38,766 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2018-11-23 08:08:38,766 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 08:08:38,766 INFO L794 eck$LassoCheckResult]: Stem: 118#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 119#L9-2 assume !!(main_~x~0 >= 0 && main_~y~0 > 0);main_~y~0 := 1; 120#L11-2 assume !((main_~x~0 > main_~y~0 && main_~y~0 > 0) && main_~y~0 < 1073741824); 123#L11-3 main_~x~0 := main_~x~0 - 1; 121#L9-2 assume !!(main_~x~0 >= 0 && main_~y~0 > 0);main_~y~0 := 1; 122#L11-2 [2018-11-23 08:08:38,766 INFO L796 eck$LassoCheckResult]: Loop: 122#L11-2 assume !!((main_~x~0 > main_~y~0 && main_~y~0 > 0) && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 122#L11-2 [2018-11-23 08:08:38,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:08:38,766 INFO L82 PathProgramCache]: Analyzing trace with hash 29867642, now seen corresponding path program 2 times [2018-11-23 08:08:38,766 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:08:38,767 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:08:38,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:08:38,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:08:38,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:08:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:08:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:08:38,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:08:38,774 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2018-11-23 08:08:38,774 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:08:38,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:08:38,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:08:38,775 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 08:08:38,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:08:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:08:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:08:38,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:08:38,779 INFO L82 PathProgramCache]: Analyzing trace with hash 925896921, now seen corresponding path program 1 times [2018-11-23 08:08:38,779 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:08:38,779 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:08:38,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:08:38,780 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 08:08:38,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:08:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:08:38,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:08:38,826 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 08:08:38,826 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 08:08:38,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:08:38,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:08:38,837 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:08:38,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:08:38,903 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 08:08:38,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2018-11-23 08:08:38,914 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 08:08:38,914 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 08:08:38,914 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 08:08:38,914 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 08:08:38,914 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 08:08:38,915 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:08:38,915 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 08:08:38,915 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 08:08:38,915 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01_assume_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-23 08:08:38,915 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 08:08:38,915 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 08:08:38,916 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 08:08:38,918 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 08:08:38,923 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 08:08:38,956 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 08:08:38,956 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/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 08:08:38,961 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:08:38,962 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:08:38,977 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 08:08:38,977 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_208fabc3-501d-4723-a7d0-a0c332d58122/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 08:08:38,980 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:08:38,980 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_208fabc3-501d-4723-a7d0-a0c332d58122/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 08:08:38,996 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 08:08:38,996 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:08:39,014 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 08:08:39,015 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 08:08:39,015 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 08:08:39,015 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 08:08:39,015 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 08:08:39,015 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 08:08:39,015 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:08:39,015 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 08:08:39,015 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 08:08:39,015 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01_assume_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-23 08:08:39,015 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 08:08:39,015 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 08:08:39,016 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 08:08:39,018 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 08:08:39,029 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 08:08:39,052 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 08:08:39,052 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 08:08:39,052 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 08:08:39,053 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:08:39,053 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:08:39,053 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:08:39,053 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:08:39,055 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 08:08:39,055 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 08:08:39,058 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:08:39,059 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 08:08:39,059 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:08:39,059 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:08:39,059 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:08:39,059 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:08:39,060 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:08:39,060 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:08:39,060 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:08:39,063 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 08:08:39,066 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 08:08:39,066 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 08:08:39,066 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 08:08:39,066 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 08:08:39,067 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 08:08:39,067 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483647 Supporting invariants [] [2018-11-23 08:08:39,067 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 08:08:39,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:08:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:08:39,081 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:08:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:08:39,084 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:08:39,084 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 08:08:39,084 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 [2018-11-23 08:08:39,084 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-23 08:08:39,090 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 5 states. [2018-11-23 08:08:39,090 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 08:08:39,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 08:08:39,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-23 08:08:39,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-23 08:08:39,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:08:39,091 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 08:08:39,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:08:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:08:39,101 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:08:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:08:39,103 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:08:39,103 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 08:08:39,104 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-23 08:08:39,104 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-23 08:08:39,109 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 5 states. [2018-11-23 08:08:39,110 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 08:08:39,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 08:08:39,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-23 08:08:39,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-23 08:08:39,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:08:39,110 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 08:08:39,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:08:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:08:39,136 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:08:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:08:39,139 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:08:39,139 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 08:08:39,139 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-23 08:08:39,139 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-23 08:08:39,145 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 9 states and 11 transitions. Complement of second has 4 states. [2018-11-23 08:08:39,146 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 08:08:39,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 08:08:39,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-23 08:08:39,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-23 08:08:39,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:08:39,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2018-11-23 08:08:39,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:08:39,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-23 08:08:39,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:08:39,147 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions. [2018-11-23 08:08:39,147 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 08:08:39,147 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2018-11-23 08:08:39,147 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 08:08:39,147 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 08:08:39,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 08:08:39,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 08:08:39,147 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:08:39,148 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:08:39,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 08:08:39,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-23 08:08:39,150 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 10 states. [2018-11-23 08:08:39,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:08:39,152 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 08:08:39,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 08:08:39,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-23 08:08:39,152 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 08:08:39,152 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 08:08:39,152 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 08:08:39,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 08:08:39,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 08:08:39,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 08:08:39,153 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:08:39,153 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:08:39,153 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:08:39,153 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 08:08:39,153 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 08:08:39,153 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 08:08:39,153 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 08:08:39,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 08:08:39 BoogieIcfgContainer [2018-11-23 08:08:39,157 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 08:08:39,158 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 08:08:39,158 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 08:08:39,158 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 08:08:39,158 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:37" (3/4) ... [2018-11-23 08:08:39,161 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 08:08:39,161 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 08:08:39,161 INFO L168 Benchmark]: Toolchain (without parser) took 1782.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 959.2 MB in the beginning and 920.2 MB in the end (delta: 39.0 MB). Peak memory consumption was 204.2 MB. Max. memory is 11.5 GB. [2018-11-23 08:08:39,162 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:08:39,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.17 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:08:39,163 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.62 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:08:39,163 INFO L168 Benchmark]: Boogie Preprocessor took 10.48 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:08:39,163 INFO L168 Benchmark]: RCFGBuilder took 148.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -203.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:08:39,164 INFO L168 Benchmark]: BuchiAutomizer took 1461.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 920.2 MB in the end (delta: 229.0 MB). Peak memory consumption was 229.0 MB. Max. memory is 11.5 GB. [2018-11-23 08:08:39,164 INFO L168 Benchmark]: Witness Printer took 2.92 ms. Allocated memory is still 1.2 GB. Free memory is still 920.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:08:39,166 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 140.17 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 16.62 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.48 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 148.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -203.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1461.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 920.2 MB in the end (delta: 229.0 MB). Peak memory consumption was 229.0 MB. Max. memory is 11.5 GB. * Witness Printer took 2.92 ms. Allocated memory is still 1.2 GB. Free memory is still 920.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * y + 2147483647 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * y + 2147483647 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 19 SDtfs, 25 SDslu, 9 SDs, 0 SdLazy, 32 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax169 hnf98 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq142 hnf94 smp100 dnf100 smp100 tf108 neg100 sie119 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...