./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-restricted-15/Sequence_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa Calling Ultimate with: 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 /storage/repos/svcomp/c/termination-restricted-15/Sequence_true-termination_true-no-overflow.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 a2ea109607ebd9a0eb298d5042ccc7f2e5bd7dbe ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 21:37:43,755 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 21:37:43,757 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 21:37:43,772 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 21:37:43,772 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 21:37:43,774 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 21:37:43,775 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 21:37:43,777 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 21:37:43,779 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 21:37:43,779 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 21:37:43,781 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 21:37:43,781 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 21:37:43,782 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 21:37:43,785 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 21:37:43,787 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 21:37:43,790 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 21:37:43,794 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 21:37:43,798 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 21:37:43,803 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 21:37:43,805 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 21:37:43,806 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 21:37:43,807 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 21:37:43,810 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 21:37:43,810 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 21:37:43,810 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 21:37:43,812 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 21:37:43,813 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 21:37:43,813 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 21:37:43,815 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 21:37:43,816 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 21:37:43,816 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 21:37:43,816 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 21:37:43,817 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 21:37:43,817 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 21:37:43,818 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 21:37:43,819 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 21:37:43,820 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-01 21:37:43,837 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 21:37:43,837 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 21:37:43,839 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 21:37:43,839 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 21:37:43,840 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 21:37:43,840 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 21:37:43,840 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 21:37:43,840 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 21:37:43,840 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 21:37:43,841 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 21:37:43,841 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 21:37:43,842 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 21:37:43,842 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 21:37:43,842 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 21:37:43,842 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 21:37:43,842 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 21:37:43,843 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 21:37:43,843 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 21:37:43,844 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 21:37:43,844 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 21:37:43,844 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 21:37:43,844 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 21:37:43,844 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 21:37:43,845 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 21:37:43,845 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 21:37:43,845 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 21:37:43,845 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 21:37:43,845 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 21:37:43,848 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 21:37:43,848 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 -> /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 -> a2ea109607ebd9a0eb298d5042ccc7f2e5bd7dbe [2019-01-01 21:37:43,888 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 21:37:43,902 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 21:37:43,907 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 21:37:43,909 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 21:37:43,909 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 21:37:43,910 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-restricted-15/Sequence_true-termination_true-no-overflow.c [2019-01-01 21:37:43,985 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03e30773b/48aed893d1f04a308274004c745fa178/FLAG9202aebea [2019-01-01 21:37:44,578 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 21:37:44,579 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-restricted-15/Sequence_true-termination_true-no-overflow.c [2019-01-01 21:37:44,586 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03e30773b/48aed893d1f04a308274004c745fa178/FLAG9202aebea [2019-01-01 21:37:44,912 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03e30773b/48aed893d1f04a308274004c745fa178 [2019-01-01 21:37:44,916 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 21:37:44,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 21:37:44,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 21:37:44,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 21:37:44,923 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 21:37:44,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:37:44" (1/1) ... [2019-01-01 21:37:44,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a88dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:37:44, skipping insertion in model container [2019-01-01 21:37:44,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:37:44" (1/1) ... [2019-01-01 21:37:44,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 21:37:44,963 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 21:37:45,168 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:37:45,179 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 21:37:45,203 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:37:45,224 INFO L195 MainTranslator]: Completed translation [2019-01-01 21:37:45,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:37:45 WrapperNode [2019-01-01 21:37:45,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 21:37:45,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 21:37:45,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 21:37:45,227 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 21:37:45,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:37:45" (1/1) ... [2019-01-01 21:37:45,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:37:45" (1/1) ... [2019-01-01 21:37:45,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 21:37:45,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 21:37:45,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 21:37:45,272 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 21:37:45,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:37:45" (1/1) ... [2019-01-01 21:37:45,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:37:45" (1/1) ... [2019-01-01 21:37:45,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:37:45" (1/1) ... [2019-01-01 21:37:45,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:37:45" (1/1) ... [2019-01-01 21:37:45,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:37:45" (1/1) ... [2019-01-01 21:37:45,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:37:45" (1/1) ... [2019-01-01 21:37:45,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:37:45" (1/1) ... [2019-01-01 21:37:45,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 21:37:45,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 21:37:45,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 21:37:45,301 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 21:37:45,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:37:45" (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 [2019-01-01 21:37:45,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 21:37:45,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 21:37:45,687 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 21:37:45,687 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-01 21:37:45,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:37:45 BoogieIcfgContainer [2019-01-01 21:37:45,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 21:37:45,688 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 21:37:45,689 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 21:37:45,693 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 21:37:45,694 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:37:45,694 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 09:37:44" (1/3) ... [2019-01-01 21:37:45,696 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1156ebd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 09:37:45, skipping insertion in model container [2019-01-01 21:37:45,696 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:37:45,696 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:37:45" (2/3) ... [2019-01-01 21:37:45,697 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1156ebd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 09:37:45, skipping insertion in model container [2019-01-01 21:37:45,697 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:37:45,698 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:37:45" (3/3) ... [2019-01-01 21:37:45,701 INFO L375 chiAutomizerObserver]: Analyzing ICFG Sequence_true-termination_true-no-overflow.c [2019-01-01 21:37:45,774 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 21:37:45,776 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 21:37:45,776 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 21:37:45,776 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 21:37:45,777 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 21:37:45,777 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 21:37:45,777 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 21:37:45,777 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 21:37:45,777 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 21:37:45,793 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-01-01 21:37:45,820 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-01-01 21:37:45,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:37:45,821 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:37:45,829 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-01 21:37:45,829 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 21:37:45,829 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 21:37:45,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-01-01 21:37:45,831 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-01-01 21:37:45,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:37:45,831 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:37:45,832 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-01 21:37:45,832 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 21:37:45,842 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0;main_~j~0 := 5; 9#L11-2true [2019-01-01 21:37:45,843 INFO L796 eck$LassoCheckResult]: Loop: 9#L11-2true assume !!(main_~i~0 < 100);main_~i~0 := 1 + main_~i~0; 9#L11-2true [2019-01-01 21:37:45,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:37:45,853 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-01-01 21:37:45,856 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:37:45,857 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:37:45,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:37:45,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:37:45,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:37:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:37:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:37:45,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:37:45,990 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-01-01 21:37:45,991 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:37:45,991 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:37:45,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:37:45,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:37:45,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:37:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:37:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:37:46,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:37:46,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-01-01 21:37:46,008 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:37:46,008 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:37:46,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:37:46,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:37:46,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:37:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:37:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:37:46,236 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:37:46,237 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:37:46,238 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:37:46,238 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:37:46,238 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-01 21:37:46,238 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:37:46,238 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:37:46,238 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:37:46,239 INFO L131 ssoRankerPreferences]: Filename of dumped script: Sequence_true-termination_true-no-overflow.c_Iteration1_Loop [2019-01-01 21:37:46,239 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:37:46,239 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:37:46,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:37:46,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:37:46,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:37:46,506 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:37:46,507 INFO L412 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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:37:46,518 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:37:46,519 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:37:46,563 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:37:46,563 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 /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 [2019-01-01 21:37:46,573 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:37:46,574 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:37:46,598 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:37:46,599 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 /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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:37:46,605 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:37:46,605 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2019-01-01 21:37:46,635 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 21:37:46,635 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:37:46,661 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-01 21:37:46,663 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:37:46,664 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:37:46,664 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:37:46,664 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:37:46,664 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 21:37:46,664 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:37:46,665 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:37:46,665 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:37:46,665 INFO L131 ssoRankerPreferences]: Filename of dumped script: Sequence_true-termination_true-no-overflow.c_Iteration1_Loop [2019-01-01 21:37:46,665 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:37:46,665 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:37:46,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:37:46,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:37:46,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:37:47,062 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:37:47,069 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 21:37:47,071 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 [2019-01-01 21:37:47,074 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:37:47,074 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:37:47,074 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:37:47,075 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:37:47,081 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:37:47,082 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:37:47,091 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:37:47,092 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 [2019-01-01 21:37:47,093 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:37:47,093 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:37:47,093 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:37:47,093 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:37:47,097 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:37:47,098 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:37:47,108 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:37:47,109 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 [2019-01-01 21:37:47,111 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:37:47,111 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:37:47,112 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:37:47,112 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:37:47,112 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:37:47,113 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:37:47,113 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:37:47,121 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 21:37:47,127 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-01 21:37:47,127 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-01-01 21:37:47,131 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 21:37:47,131 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-01 21:37:47,131 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 21:37:47,133 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] [2019-01-01 21:37:47,135 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-01 21:37:47,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:37:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:37:47,243 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:37:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:37:47,253 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:37:47,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:37:47,270 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 [2019-01-01 21:37:47,271 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 2 states. [2019-01-01 21:37:47,318 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 2 states. Result 19 states and 28 transitions. Complement of second has 5 states. [2019-01-01 21:37:47,319 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 [2019-01-01 21:37:47,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-01-01 21:37:47,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-01-01 21:37:47,324 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 1 letters. Loop has 1 letters. [2019-01-01 21:37:47,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:37:47,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 1 letters. [2019-01-01 21:37:47,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:37:47,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 1 letters. Loop has 2 letters. [2019-01-01 21:37:47,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:37:47,327 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 28 transitions. [2019-01-01 21:37:47,330 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 21:37:47,335 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 5 states and 7 transitions. [2019-01-01 21:37:47,337 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-01-01 21:37:47,337 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-01-01 21:37:47,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2019-01-01 21:37:47,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 21:37:47,339 INFO L705 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-01-01 21:37:47,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2019-01-01 21:37:47,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. [2019-01-01 21:37:47,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-01 21:37:47,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2019-01-01 21:37:47,373 INFO L728 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2019-01-01 21:37:47,373 INFO L608 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2019-01-01 21:37:47,373 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 21:37:47,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 6 transitions. [2019-01-01 21:37:47,374 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 21:37:47,374 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:37:47,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:37:47,374 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-01 21:37:47,375 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 21:37:47,375 INFO L794 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0;main_~j~0 := 5; 56#L11-2 assume !(main_~i~0 < 100); 57#L13-1 [2019-01-01 21:37:47,375 INFO L796 eck$LassoCheckResult]: Loop: 57#L13-1 assume !!(main_~j~0 < 21);main_~j~0 := 3 + main_~j~0; 57#L13-1 [2019-01-01 21:37:47,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:37:47,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1000, now seen corresponding path program 1 times [2019-01-01 21:37:47,376 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:37:47,376 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:37:47,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:37:47,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:37:47,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:37:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:37:47,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:37:47,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 21:37:47,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-01 21:37:47,467 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-01-01 21:37:47,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:37:47,468 INFO L82 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times [2019-01-01 21:37:47,468 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:37:47,468 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:37:47,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:37:47,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:37:47,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:37:47,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:37:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:37:47,518 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:37:47,518 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:37:47,518 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:37:47,519 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:37:47,519 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-01 21:37:47,519 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:37:47,519 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:37:47,520 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:37:47,520 INFO L131 ssoRankerPreferences]: Filename of dumped script: Sequence_true-termination_true-no-overflow.c_Iteration2_Loop [2019-01-01 21:37:47,520 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:37:47,520 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:37:47,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:37:47,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:37:47,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:37:47,717 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:37:47,717 INFO L412 LassoAnalysis]: Checking for nontermination... 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:37:47,722 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:37:47,722 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:37:47,746 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:37:47,746 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 /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 [2019-01-01 21:37:47,752 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:37:47,752 INFO L163 nArgumentSynthesizer]: Using integer mode. 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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:37:47,779 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 21:37:47,779 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:37:47,807 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-01 21:37:47,810 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:37:47,810 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:37:47,810 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:37:47,810 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:37:47,811 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 21:37:47,811 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:37:47,811 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:37:47,811 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:37:47,811 INFO L131 ssoRankerPreferences]: Filename of dumped script: Sequence_true-termination_true-no-overflow.c_Iteration2_Loop [2019-01-01 21:37:47,811 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:37:47,812 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:37:47,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:37:47,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:37:47,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:37:47,919 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:37:47,919 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 21:37:47,920 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 [2019-01-01 21:37:47,921 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:37:47,922 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:37:47,922 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:37:47,922 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:37:47,922 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:37:47,923 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:37:47,923 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:37:47,930 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 21:37:47,935 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-01 21:37:47,935 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-01-01 21:37:47,936 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 21:37:47,936 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-01 21:37:47,936 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 21:37:47,936 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 43 Supporting invariants [] [2019-01-01 21:37:47,937 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-01 21:37:48,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:37:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:37:48,027 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:37:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:37:48,048 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:37:48,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:37:48,049 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 [2019-01-01 21:37:48,049 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 6 transitions. cyclomatic complexity: 4 Second operand 2 states. [2019-01-01 21:37:48,064 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 6 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 5 states and 7 transitions. Complement of second has 2 states. [2019-01-01 21:37:48,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2019-01-01 21:37:48,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-01-01 21:37:48,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2019-01-01 21:37:48,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 1 letters. [2019-01-01 21:37:48,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:37:48,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 1 letters. [2019-01-01 21:37:48,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:37:48,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 2 letters. [2019-01-01 21:37:48,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:37:48,067 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 7 transitions. [2019-01-01 21:37:48,068 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 21:37:48,068 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 0 states and 0 transitions. [2019-01-01 21:37:48,068 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-01 21:37:48,069 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-01 21:37:48,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-01 21:37:48,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 21:37:48,069 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:37:48,069 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:37:48,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 21:37:48,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 21:37:48,078 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2019-01-01 21:37:48,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 21:37:48,082 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-01-01 21:37:48,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-01 21:37:48,082 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-01-01 21:37:48,083 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 21:37:48,083 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 21:37:48,083 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-01 21:37:48,083 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-01 21:37:48,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-01 21:37:48,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 21:37:48,083 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:37:48,084 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:37:48,084 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:37:48,084 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-01 21:37:48,084 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-01 21:37:48,084 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 21:37:48,084 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-01 21:37:48,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 09:37:48 BoogieIcfgContainer [2019-01-01 21:37:48,092 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 21:37:48,093 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 21:37:48,093 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 21:37:48,093 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 21:37:48,094 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:37:45" (3/4) ... [2019-01-01 21:37:48,097 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-01 21:37:48,098 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 21:37:48,099 INFO L168 Benchmark]: Toolchain (without parser) took 3181.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 954.0 MB in the beginning and 976.0 MB in the end (delta: -22.0 MB). Peak memory consumption was 96.5 MB. Max. memory is 11.5 GB. [2019-01-01 21:37:48,101 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:37:48,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.77 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 21:37:48,103 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.87 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:37:48,103 INFO L168 Benchmark]: Boogie Preprocessor took 28.41 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:37:48,104 INFO L168 Benchmark]: RCFGBuilder took 386.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -156.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2019-01-01 21:37:48,105 INFO L168 Benchmark]: BuchiAutomizer took 2403.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 976.0 MB in the end (delta: 123.3 MB). Peak memory consumption was 123.3 MB. Max. memory is 11.5 GB. [2019-01-01 21:37:48,106 INFO L168 Benchmark]: Witness Printer took 4.93 ms. Allocated memory is still 1.1 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:37:48,111 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 307.77 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.87 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.41 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 386.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -156.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2403.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 976.0 MB in the end (delta: 123.3 MB). Peak memory consumption was 123.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.93 ms. Allocated memory is still 1.1 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 43 and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 8 SDslu, 5 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 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...