./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/2Nested-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/2Nested-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 e73aa59ec9606428c1e0dd19193fa59dbe50e869 .............................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:56:04,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:56:04,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:56:04,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:56:04,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:56:04,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:56:04,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:56:04,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:56:04,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:56:04,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:56:04,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:56:04,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:56:04,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:56:04,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:56:04,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:56:04,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:56:04,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:56:04,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:56:04,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:56:04,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:56:04,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:56:04,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:56:04,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:56:04,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:56:04,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:56:04,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:56:04,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:56:04,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:56:04,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:56:04,752 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:56:04,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:56:04,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:56:04,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:56:04,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:56:04,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:56:04,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:56:04,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:56:04,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:56:04,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:56:04,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:56:04,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:56:04,760 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 02:56:04,777 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:56:04,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:56:04,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:56:04,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:56:04,779 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:56:04,779 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 02:56:04,780 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 02:56:04,780 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 02:56:04,780 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 02:56:04,780 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 02:56:04,781 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 02:56:04,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:56:04,781 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:56:04,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:56:04,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:56:04,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 02:56:04,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 02:56:04,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 02:56:04,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 02:56:04,783 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 02:56:04,783 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:56:04,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 02:56:04,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:56:04,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:56:04,784 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 02:56:04,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:56:04,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:56:04,785 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 02:56:04,786 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 02:56:04,787 INFO L138 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> e73aa59ec9606428c1e0dd19193fa59dbe50e869 [2019-11-28 02:56:05,145 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:56:05,164 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:56:05,167 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:56:05,169 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:56:05,169 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:56:05,171 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/2Nested-1.c [2019-11-28 02:56:05,242 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/512d0edf4/7d3e8a537e47434e88b3f6e9e3cfc72f/FLAGcc3e3c709 [2019-11-28 02:56:05,738 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:56:05,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/2Nested-1.c [2019-11-28 02:56:05,745 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/512d0edf4/7d3e8a537e47434e88b3f6e9e3cfc72f/FLAGcc3e3c709 [2019-11-28 02:56:06,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/512d0edf4/7d3e8a537e47434e88b3f6e9e3cfc72f [2019-11-28 02:56:06,104 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:56:06,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 02:56:06,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:56:06,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:56:06,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:56:06,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:06" (1/1) ... [2019-11-28 02:56:06,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62cf5917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:06, skipping insertion in model container [2019-11-28 02:56:06,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:06" (1/1) ... [2019-11-28 02:56:06,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:56:06,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:56:06,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:56:06,303 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:56:06,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:56:06,330 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:56:06,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:06 WrapperNode [2019-11-28 02:56:06,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:56:06,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 02:56:06,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 02:56:06,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 02:56:06,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:06" (1/1) ... [2019-11-28 02:56:06,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:06" (1/1) ... [2019-11-28 02:56:06,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 02:56:06,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:56:06,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:56:06,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:56:06,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:06" (1/1) ... [2019-11-28 02:56:06,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:06" (1/1) ... [2019-11-28 02:56:06,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:06" (1/1) ... [2019-11-28 02:56:06,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:06" (1/1) ... [2019-11-28 02:56:06,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:06" (1/1) ... [2019-11-28 02:56:06,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:06" (1/1) ... [2019-11-28 02:56:06,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:06" (1/1) ... [2019-11-28 02:56:06,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:56:06,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:56:06,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:56:06,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:56:06,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 02:56:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:56:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:56:06,653 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:56:06,654 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 02:56:06,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:06 BoogieIcfgContainer [2019-11-28 02:56:06,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:56:06,656 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 02:56:06,656 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 02:56:06,659 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 02:56:06,660 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 02:56:06,660 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:56:06" (1/3) ... [2019-11-28 02:56:06,661 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5fa5c3e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:56:06, skipping insertion in model container [2019-11-28 02:56:06,661 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 02:56:06,662 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:06" (2/3) ... [2019-11-28 02:56:06,662 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5fa5c3e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:56:06, skipping insertion in model container [2019-11-28 02:56:06,662 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 02:56:06,662 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:06" (3/3) ... [2019-11-28 02:56:06,664 INFO L371 chiAutomizerObserver]: Analyzing ICFG 2Nested-1.c [2019-11-28 02:56:06,711 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 02:56:06,712 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 02:56:06,712 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 02:56:06,712 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:56:06,712 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:56:06,713 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 02:56:06,713 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:56:06,713 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 02:56:06,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-11-28 02:56:06,750 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 02:56:06,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 02:56:06,750 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 02:56:06,757 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-28 02:56:06,757 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 02:56:06,757 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 02:56:06,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-11-28 02:56:06,759 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 02:56:06,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 02:56:06,759 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 02:56:06,760 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-28 02:56:06,760 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 02:56:06,766 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 3#L21true assume !!(main_~x~0 <= 65534); 5#L22true assume !!(main_~y~0 <= 65534); 10#L24true assume !!(main_~y~0 >= -65534); 8#L25-2true [2019-11-28 02:56:06,767 INFO L796 eck$LassoCheckResult]: Loop: 8#L25-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 + main_~y~0;main_~y~0 := main_~y~0 - 1; 8#L25-2true [2019-11-28 02:56:06,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:56:06,774 INFO L82 PathProgramCache]: Analyzing trace with hash 959435, now seen corresponding path program 1 times [2019-11-28 02:56:06,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:56:06,782 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905842934] [2019-11-28 02:56:06,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:56:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:56:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:56:06,892 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:56:06,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:56:06,894 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2019-11-28 02:56:06,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:56:06,895 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465298502] [2019-11-28 02:56:06,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:56:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:56:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:56:06,908 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:56:06,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:56:06,910 INFO L82 PathProgramCache]: Analyzing trace with hash 29742510, now seen corresponding path program 1 times [2019-11-28 02:56:06,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:56:06,911 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701069561] [2019-11-28 02:56:06,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:56:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:56:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:56:06,929 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:56:07,067 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:56:07,069 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:56:07,069 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:56:07,069 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:56:07,070 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 02:56:07,070 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:56:07,070 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:56:07,070 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:56:07,070 INFO L133 ssoRankerPreferences]: Filename of dumped script: 2Nested-1.c_Iteration1_Loop [2019-11-28 02:56:07,073 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:56:07,073 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:56:07,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:56:07,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:56:07,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:56:07,325 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:56:07,326 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:56:07,335 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 02:56:07,335 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 02:56:07,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 02:56:07,366 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 02:56:07,596 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 02:56:07,603 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 02:56:07,604 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 02:56:07,605 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 02:56:07,605 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 02:56:07,605 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 02:56:07,605 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:56:07,605 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 02:56:07,605 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 02:56:07,606 INFO L133 ssoRankerPreferences]: Filename of dumped script: 2Nested-1.c_Iteration1_Loop [2019-11-28 02:56:07,606 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 02:56:07,606 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 02:56:07,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:56:07,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:56:07,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 02:56:07,710 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 02:56:07,715 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:56:07,725 INFO L120 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 [2019-11-28 02:56:07,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:56:07,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:56:07,730 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:56:07,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:56:07,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:56:07,735 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 02:56:07,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:56:07,741 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 02:56:07,761 INFO L120 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 [2019-11-28 02:56:07,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:56:07,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:56:07,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:56:07,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:56:07,768 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 02:56:07,769 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 02:56:07,775 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:56:07,785 INFO L120 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 Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:56:07,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:56:07,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:56:07,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:56:07,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 02:56:07,792 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 02:56:07,792 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 02:56:07,798 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-28 02:56:07,801 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 02:56:07,808 INFO L120 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 [2019-11-28 02:56:07,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 02:56:07,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 02:56:07,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 02:56:07,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 02:56:07,812 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-28 02:56:07,815 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-11-28 02:56:07,815 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 02:56:07,821 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 02:56:07,835 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 02:56:07,835 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 02:56:07,843 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 02:56:07,843 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 02:56:07,843 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 02:56:07,844 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*ULTIMATE.start_main_~y~0 + 1 f1 = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 02:56:07,851 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 02:56:07,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:56:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:56:07,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 02:56:07,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:56:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:56:07,964 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 02:56:07,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:56:07,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:56:07,983 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 [2019-11-28 02:56:07,985 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 2 states. [2019-11-28 02:56:08,044 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 2 states. Result 21 states and 26 transitions. Complement of second has 5 states. [2019-11-28 02:56:08,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 02:56:08,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 02:56:08,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-11-28 02:56:08,051 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-28 02:56:08,055 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:56:08,055 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 1 letters. [2019-11-28 02:56:08,055 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:56:08,056 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-28 02:56:08,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 02:56:08,057 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2019-11-28 02:56:08,063 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 02:56:08,067 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2019-11-28 02:56:08,069 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 02:56:08,069 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 02:56:08,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 02:56:08,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 02:56:08,070 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:56:08,071 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:56:08,071 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:56:08,071 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 02:56:08,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 02:56:08,072 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 02:56:08,072 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 02:56:08,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:56:08 BoogieIcfgContainer [2019-11-28 02:56:08,082 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 02:56:08,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:56:08,084 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:56:08,084 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:56:08,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:06" (3/4) ... [2019-11-28 02:56:08,090 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 02:56:08,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:56:08,095 INFO L168 Benchmark]: Toolchain (without parser) took 1987.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 953.7 MB in the beginning and 1.0 GB in the end (delta: -71.9 MB). Peak memory consumption was 68.6 MB. Max. memory is 11.5 GB. [2019-11-28 02:56:08,098 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:56:08,099 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.27 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 942.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:56:08,102 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 942.9 MB in the beginning and 1.1 GB in the end (delta: -194.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:56:08,103 INFO L168 Benchmark]: Boogie Preprocessor took 19.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:56:08,104 INFO L168 Benchmark]: RCFGBuilder took 215.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:56:08,106 INFO L168 Benchmark]: BuchiAutomizer took 1426.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.7 MB). Peak memory consumption was 93.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:56:08,107 INFO L168 Benchmark]: Witness Printer took 7.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:56:08,125 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 224.27 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 942.9 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 89.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 942.9 MB in the beginning and 1.1 GB in the end (delta: -194.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 215.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1426.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.7 MB). Peak memory consumption was 93.7 MB. Max. memory is 11.5 GB. * Witness Printer took 7.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 2-nested ranking function (if 2 * y + 1 > 0 then 1 else 0), (if 2 * y + 1 > 0 then 2 * y + 1 else 2 * x + 1) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. 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 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 12 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 31ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 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...