./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/loop-invgen/seq_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e 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/loop-invgen/seq_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 63d818ac17d423e56496424f9fa44743b17c8897 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:44:05,482 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:44:05,486 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:44:05,504 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:44:05,506 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:44:05,508 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:44:05,510 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:44:05,514 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:44:05,520 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:44:05,525 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:44:05,528 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:44:05,530 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:44:05,531 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:44:05,532 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:44:05,537 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:44:05,538 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:44:05,545 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:44:05,546 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:44:05,548 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:44:05,550 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:44:05,551 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:44:05,553 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:44:05,555 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:44:05,555 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:44:05,555 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:44:05,557 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:44:05,558 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:44:05,559 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:44:05,559 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:44:05,560 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:44:05,561 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:44:05,561 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:44:05,562 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:44:05,562 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:44:05,563 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:44:05,564 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:44:05,564 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 23:44:05,581 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:44:05,582 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:44:05,583 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:44:05,583 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:44:05,583 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:44:05,583 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:44:05,584 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:44:05,584 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:44:05,584 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:44:05,584 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:44:05,584 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:44:05,584 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:44:05,585 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:44:05,585 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:44:05,585 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:44:05,585 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:44:05,585 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:44:05,585 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:44:05,586 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:44:05,586 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:44:05,586 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:44:05,586 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:44:05,586 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:44:05,586 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:44:05,587 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:44:05,587 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:44:05,587 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:44:05,587 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:44:05,587 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:44:05,588 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:44:05,588 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:44:05,589 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:44:05,589 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63d818ac17d423e56496424f9fa44743b17c8897 [2018-11-28 23:44:05,644 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:44:05,661 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:44:05,668 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:44:05,670 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:44:05,671 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:44:05,672 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-invgen/seq_true-unreach-call_true-termination.i [2018-11-28 23:44:05,745 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/566d1a35d/c1d17612dc684bf4bef0eebd79cfe96d/FLAG401bd3203 [2018-11-28 23:44:06,260 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:44:06,263 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-invgen/seq_true-unreach-call_true-termination.i [2018-11-28 23:44:06,271 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/566d1a35d/c1d17612dc684bf4bef0eebd79cfe96d/FLAG401bd3203 [2018-11-28 23:44:06,593 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/566d1a35d/c1d17612dc684bf4bef0eebd79cfe96d [2018-11-28 23:44:06,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:44:06,599 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:44:06,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:44:06,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:44:06,605 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:44:06,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:44:06" (1/1) ... [2018-11-28 23:44:06,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c39c999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:06, skipping insertion in model container [2018-11-28 23:44:06,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:44:06" (1/1) ... [2018-11-28 23:44:06,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:44:06,642 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:44:06,850 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:44:06,855 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:44:06,877 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:44:06,894 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:44:06,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:06 WrapperNode [2018-11-28 23:44:06,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:44:06,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:44:06,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:44:06,896 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:44:06,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:06" (1/1) ... [2018-11-28 23:44:06,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:06" (1/1) ... [2018-11-28 23:44:06,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:44:06,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:44:06,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:44:06,946 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:44:06,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:06" (1/1) ... [2018-11-28 23:44:06,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:06" (1/1) ... [2018-11-28 23:44:06,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:06" (1/1) ... [2018-11-28 23:44:06,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:06" (1/1) ... [2018-11-28 23:44:06,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:06" (1/1) ... [2018-11-28 23:44:06,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:06" (1/1) ... [2018-11-28 23:44:06,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:06" (1/1) ... [2018-11-28 23:44:06,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:44:06,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:44:06,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:44:06,994 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:44:06,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:06" (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 [2018-11-28 23:44:07,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:44:07,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:44:07,555 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:44:07,555 INFO L280 CfgBuilder]: Removed 9 assue(true) statements. [2018-11-28 23:44:07,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:44:07 BoogieIcfgContainer [2018-11-28 23:44:07,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:44:07,557 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:44:07,557 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:44:07,561 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:44:07,562 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:44:07,562 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:44:06" (1/3) ... [2018-11-28 23:44:07,564 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17d0d4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:44:07, skipping insertion in model container [2018-11-28 23:44:07,564 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:44:07,564 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:06" (2/3) ... [2018-11-28 23:44:07,564 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17d0d4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:44:07, skipping insertion in model container [2018-11-28 23:44:07,565 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:44:07,565 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:44:07" (3/3) ... [2018-11-28 23:44:07,567 INFO L375 chiAutomizerObserver]: Analyzing ICFG seq_true-unreach-call_true-termination.i [2018-11-28 23:44:07,642 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:44:07,643 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:44:07,643 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:44:07,644 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:44:07,645 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:44:07,645 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:44:07,646 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:44:07,646 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:44:07,646 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:44:07,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-28 23:44:07,690 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2018-11-28 23:44:07,691 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:44:07,691 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:44:07,698 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 23:44:07,698 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:44:07,698 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:44:07,699 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-28 23:44:07,701 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2018-11-28 23:44:07,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:44:07,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:44:07,701 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 23:44:07,702 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:44:07,710 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~post3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_#t~post8, main_~n0~0, main_~n1~0, main_~i0~0, main_~k~0, main_~i1~0, main_~j1~0;havoc main_~n0~0;havoc main_~n1~0;main_~i0~0 := 0;main_~k~0 := 0;main_~n0~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n1~0 := main_#t~nondet2;havoc main_#t~nondet2; 6#L16true assume !!(-1000000 <= main_~n0~0 && main_~n0~0 < 1000000); 8#L17true assume !!(-1000000 <= main_~n1~0 && main_~n1~0 < 1000000); 7#L18-2true [2018-11-28 23:44:07,710 INFO L796 eck$LassoCheckResult]: Loop: 7#L18-2true assume !!(main_~i0~0 < main_~n0~0);main_#t~post3 := main_~i0~0;main_~i0~0 := 1 + main_#t~post3;havoc main_#t~post3;main_#t~post4 := main_~k~0;main_~k~0 := 1 + main_#t~post4;havoc main_#t~post4; 7#L18-2true [2018-11-28 23:44:07,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:07,717 INFO L82 PathProgramCache]: Analyzing trace with hash 30949, now seen corresponding path program 1 times [2018-11-28 23:44:07,720 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:07,720 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:07,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:07,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:07,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:07,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:07,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:07,836 INFO L82 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2018-11-28 23:44:07,836 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:07,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:07,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:07,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:07,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:07,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:07,848 INFO L82 PathProgramCache]: Analyzing trace with hash 959439, now seen corresponding path program 1 times [2018-11-28 23:44:07,848 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:07,849 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:07,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:07,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:07,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:07,960 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:07,961 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:07,962 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:07,962 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:07,962 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:44:07,962 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:07,962 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:07,962 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:07,963 INFO L131 ssoRankerPreferences]: Filename of dumped script: seq_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-28 23:44:07,963 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:07,964 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:07,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:08,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:08,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:08,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:08,388 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:08,389 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 [2018-11-28 23:44:08,400 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:44:08,400 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2018-11-28 23:44:08,431 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:44:08,431 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:44:08,597 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:44:08,602 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:08,603 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:08,603 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:08,603 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:08,603 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:44:08,603 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:08,603 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:08,603 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:08,604 INFO L131 ssoRankerPreferences]: Filename of dumped script: seq_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-28 23:44:08,604 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:08,604 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:08,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:08,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:08,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:08,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:08,767 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-28 23:44:08,925 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:08,931 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:44:08,933 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:44:08,936 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:44:08,937 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:44:08,937 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:44:08,939 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:44:08,939 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:44:08,942 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:44:08,943 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:44:08,958 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:44:08,973 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:44:08,973 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:44:08,978 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:44:08,978 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:44:08,979 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:44:08,980 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i0~0, ULTIMATE.start_main_~n0~0) = -1*ULTIMATE.start_main_~i0~0 + 1*ULTIMATE.start_main_~n0~0 Supporting invariants [] [2018-11-28 23:44:08,985 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:44:09,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:09,120 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:09,145 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:09,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:44:09,162 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:44:09,164 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 2 states. [2018-11-28 23:44:09,243 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 2 states. Result 38 states and 54 transitions. Complement of second has 5 states. [2018-11-28 23:44:09,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:44:09,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:44:09,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2018-11-28 23:44:09,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-28 23:44:09,251 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:09,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-28 23:44:09,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:09,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 23:44:09,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:09,253 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 54 transitions. [2018-11-28 23:44:09,258 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 23:44:09,262 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 11 states and 14 transitions. [2018-11-28 23:44:09,264 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-28 23:44:09,264 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-28 23:44:09,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-11-28 23:44:09,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:44:09,265 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-28 23:44:09,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-11-28 23:44:09,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-28 23:44:09,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-28 23:44:09,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2018-11-28 23:44:09,293 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-28 23:44:09,293 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-28 23:44:09,294 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:44:09,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2018-11-28 23:44:09,295 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 23:44:09,295 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:44:09,295 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:44:09,295 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-28 23:44:09,296 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:44:09,296 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~post3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_#t~post8, main_~n0~0, main_~n1~0, main_~i0~0, main_~k~0, main_~i1~0, main_~j1~0;havoc main_~n0~0;havoc main_~n1~0;main_~i0~0 := 0;main_~k~0 := 0;main_~n0~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n1~0 := main_#t~nondet2;havoc main_#t~nondet2; 95#L16 assume !!(-1000000 <= main_~n0~0 && main_~n0~0 < 1000000); 96#L17 assume !!(-1000000 <= main_~n1~0 && main_~n1~0 < 1000000); 92#L18-2 assume !(main_~i0~0 < main_~n0~0); 87#L18-3 main_~i1~0 := 0; 88#L23-2 [2018-11-28 23:44:09,296 INFO L796 eck$LassoCheckResult]: Loop: 88#L23-2 assume !!(main_~i1~0 < main_~n1~0);main_#t~post5 := main_~i1~0;main_~i1~0 := 1 + main_#t~post5;havoc main_#t~post5;main_#t~post6 := main_~k~0;main_~k~0 := 1 + main_#t~post6;havoc main_#t~post6; 88#L23-2 [2018-11-28 23:44:09,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:09,297 INFO L82 PathProgramCache]: Analyzing trace with hash 29742571, now seen corresponding path program 1 times [2018-11-28 23:44:09,297 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:09,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:09,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:09,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:09,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:09,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:09,311 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2018-11-28 23:44:09,311 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:09,311 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:09,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:09,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:09,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:09,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:09,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:09,319 INFO L82 PathProgramCache]: Analyzing trace with hash 922019734, now seen corresponding path program 1 times [2018-11-28 23:44:09,319 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:09,319 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:09,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:09,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:09,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:09,396 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:09,396 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:09,396 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:09,397 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:09,397 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:44:09,397 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:09,397 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:09,398 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:09,398 INFO L131 ssoRankerPreferences]: Filename of dumped script: seq_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-28 23:44:09,398 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:09,398 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:09,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:09,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:09,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:09,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:09,638 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:09,638 INFO L412 LassoAnalysis]: Checking for nontermination... 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 [2018-11-28 23:44:09,642 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:44:09,642 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:44:09,648 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:44:09,648 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2018-11-28 23:44:09,680 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:44:09,680 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2018-11-28 23:44:09,705 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:44:09,705 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:44:09,850 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:44:09,852 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:09,852 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:09,852 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:09,853 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:09,853 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:44:09,853 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:09,853 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:09,854 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:09,854 INFO L131 ssoRankerPreferences]: Filename of dumped script: seq_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-28 23:44:09,854 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:09,854 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:09,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:09,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:09,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:09,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:09,934 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:09,934 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:44:09,935 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:44:09,938 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:44:09,938 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:44:09,938 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:44:09,939 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:44:09,939 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:44:09,940 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:44:09,941 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:44:09,948 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:44:09,955 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 23:44:09,955 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:44:09,956 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:44:09,956 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:44:09,956 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:44:09,957 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i1~0, ULTIMATE.start_main_~n1~0) = -1*ULTIMATE.start_main_~i1~0 + 1*ULTIMATE.start_main_~n1~0 Supporting invariants [] [2018-11-28 23:44:09,957 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:44:10,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:10,024 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:10,035 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:10,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:44:10,036 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:44:10,036 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 6 Second operand 2 states. [2018-11-28 23:44:10,122 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 6. Second operand 2 states. Result 16 states and 22 transitions. Complement of second has 4 states. [2018-11-28 23:44:10,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:44:10,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:44:10,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-11-28 23:44:10,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-28 23:44:10,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:10,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 1 letters. [2018-11-28 23:44:10,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:10,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 23:44:10,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:10,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2018-11-28 23:44:10,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:44:10,133 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 16 transitions. [2018-11-28 23:44:10,133 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-28 23:44:10,136 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-28 23:44:10,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2018-11-28 23:44:10,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:44:10,136 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-11-28 23:44:10,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2018-11-28 23:44:10,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-28 23:44:10,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 23:44:10,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2018-11-28 23:44:10,140 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-11-28 23:44:10,142 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-11-28 23:44:10,142 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:44:10,142 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2018-11-28 23:44:10,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:44:10,143 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:44:10,143 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:44:10,145 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:44:10,146 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:44:10,146 INFO L794 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~post3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_#t~post8, main_~n0~0, main_~n1~0, main_~i0~0, main_~k~0, main_~i1~0, main_~j1~0;havoc main_~n0~0;havoc main_~n1~0;main_~i0~0 := 0;main_~k~0 := 0;main_~n0~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~n1~0 := main_#t~nondet2;havoc main_#t~nondet2; 158#L16 assume !!(-1000000 <= main_~n0~0 && main_~n0~0 < 1000000); 159#L17 assume !!(-1000000 <= main_~n1~0 && main_~n1~0 < 1000000); 160#L18-2 assume !(main_~i0~0 < main_~n0~0); 151#L18-3 main_~i1~0 := 0; 152#L23-2 assume !(main_~i1~0 < main_~n1~0); 156#L23-3 main_~j1~0 := 0; 153#L28-2 [2018-11-28 23:44:10,146 INFO L796 eck$LassoCheckResult]: Loop: 153#L28-2 assume !!(main_~j1~0 < main_~n0~0 + main_~n1~0);__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 154#L4 assume !(0 == __VERIFIER_assert_~cond); 162#L4-2 main_#t~post7 := main_~j1~0;main_~j1~0 := 1 + main_#t~post7;havoc main_#t~post7;main_#t~post8 := main_~k~0;main_~k~0 := main_#t~post8 - 1;havoc main_#t~post8; 153#L28-2 [2018-11-28 23:44:10,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:10,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1482159343, now seen corresponding path program 1 times [2018-11-28 23:44:10,147 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:10,147 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:10,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:10,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:10,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:10,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:10,176 INFO L82 PathProgramCache]: Analyzing trace with hash 75696, now seen corresponding path program 1 times [2018-11-28 23:44:10,177 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:10,177 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:10,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:10,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:10,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:10,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:10,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1549828768, now seen corresponding path program 1 times [2018-11-28 23:44:10,212 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:10,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:10,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:10,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:10,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:10,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:44:10,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:44:10,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:44:10,543 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-28 23:44:10,711 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-28 23:44:10,724 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:10,724 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:10,725 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:10,725 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:10,725 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:44:10,725 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:10,725 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:10,725 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:10,725 INFO L131 ssoRankerPreferences]: Filename of dumped script: seq_true-unreach-call_true-termination.i_Iteration3_Loop [2018-11-28 23:44:10,725 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:10,727 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:10,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:10,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:10,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:10,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:11,115 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:11,115 INFO L412 LassoAnalysis]: Checking for nontermination... 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 [2018-11-28 23:44:11,118 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:44:11,119 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 [2018-11-28 23:44:11,142 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:44:11,142 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:44:13,402 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:44:13,404 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:13,405 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:13,405 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:13,405 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:13,405 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:44:13,405 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:13,405 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:13,406 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:13,406 INFO L131 ssoRankerPreferences]: Filename of dumped script: seq_true-unreach-call_true-termination.i_Iteration3_Loop [2018-11-28 23:44:13,406 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:13,406 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:13,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:13,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:13,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:13,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:13,635 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:13,635 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:44:13,636 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:44:13,636 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:44:13,637 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:44:13,637 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:44:13,637 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:44:13,637 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:44:13,638 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:44:13,638 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:44:13,642 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:44:13,647 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:44:13,647 INFO L444 ModelExtractionUtils]: 0 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:44:13,647 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:44:13,648 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:44:13,648 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:44:13,648 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n1~0, ULTIMATE.start_main_~j1~0, ULTIMATE.start_main_~n0~0) = 1*ULTIMATE.start_main_~n1~0 - 1*ULTIMATE.start_main_~j1~0 + 1*ULTIMATE.start_main_~n0~0 Supporting invariants [] [2018-11-28 23:44:13,648 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:44:13,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:13,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:13,730 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:13,745 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:13,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:44:13,763 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 23:44:13,763 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-11-28 23:44:13,780 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 15 states and 20 transitions. Complement of second has 4 states. [2018-11-28 23:44:13,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:44:13,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:44:13,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-11-28 23:44:13,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-28 23:44:13,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:13,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 3 letters. [2018-11-28 23:44:13,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:13,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 6 letters. [2018-11-28 23:44:13,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:13,785 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2018-11-28 23:44:13,787 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:44:13,787 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-11-28 23:44:13,787 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:44:13,787 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:44:13,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:44:13,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:44:13,789 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:13,789 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:13,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:44:13,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:44:13,796 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2018-11-28 23:44:13,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:44:13,799 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-28 23:44:13,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 23:44:13,799 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-28 23:44:13,799 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:44:13,799 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:44:13,800 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:44:13,800 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:44:13,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:44:13,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:44:13,800 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:13,800 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:13,800 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:13,800 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:44:13,800 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:44:13,803 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:44:13,803 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:44:13,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:44:13 BoogieIcfgContainer [2018-11-28 23:44:13,810 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:44:13,810 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:44:13,811 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:44:13,811 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:44:13,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:44:07" (3/4) ... [2018-11-28 23:44:13,815 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:44:13,815 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:44:13,816 INFO L168 Benchmark]: Toolchain (without parser) took 7217.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 952.7 MB in the beginning and 955.7 MB in the end (delta: -3.0 MB). Peak memory consumption was 141.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:44:13,817 INFO L168 Benchmark]: CDTParser took 0.50 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. [2018-11-28 23:44:13,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.21 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:44:13,820 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.19 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:44:13,820 INFO L168 Benchmark]: Boogie Preprocessor took 48.33 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:44:13,821 INFO L168 Benchmark]: RCFGBuilder took 562.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -177.9 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:44:13,822 INFO L168 Benchmark]: BuchiAutomizer took 6253.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 955.7 MB in the end (delta: 164.1 MB). Peak memory consumption was 164.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:44:13,823 INFO L168 Benchmark]: Witness Printer took 4.43 ms. Allocated memory is still 1.2 GB. Free memory is still 955.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:44:13,828 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 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 295.21 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 49.19 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.33 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 562.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -177.9 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 6253.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 955.7 MB in the end (delta: 164.1 MB). Peak memory consumption was 164.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.43 ms. Allocated memory is still 1.2 GB. Free memory is still 955.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i0 + n0 and consists of 4 locations. One deterministic module has affine ranking function -1 * i1 + n1 and consists of 3 locations. One deterministic module has affine ranking function n1 + -1 * j1 + n0 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 5.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 35 SDtfs, 37 SDslu, 13 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite112 ukn100 eq164 hnf92 smp85 dnf98 smp100 tf111 neg98 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 47ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...