./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-restricted-15/c.01-no-inv_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-restricted-15/c.01-no-inv_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 90c8922c67b3eb8c55716b63a408098d1b23a21e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:16:56,641 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:16:56,644 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:16:56,660 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:16:56,661 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:16:56,663 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:16:56,667 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:16:56,677 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:16:56,679 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:16:56,681 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:16:56,682 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:16:56,684 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:16:56,686 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:16:56,687 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:16:56,690 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:16:56,691 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:16:56,692 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:16:56,702 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:16:56,707 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:16:56,712 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:16:56,713 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:16:56,717 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:16:56,719 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:16:56,719 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:16:56,719 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:16:56,722 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:16:56,723 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:16:56,723 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:16:56,730 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:16:56,731 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:16:56,731 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:16:56,731 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:16:56,732 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:16:56,732 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:16:56,734 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:16:56,735 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:16:56,736 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:16:56,759 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:16:56,761 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:16:56,764 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:16:56,764 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:16:56,764 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:16:56,764 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:16:56,764 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:16:56,765 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:16:56,765 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:16:56,765 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:16:56,765 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:16:56,765 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:16:56,766 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:16:56,766 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:16:56,766 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:16:56,766 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:16:56,766 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:16:56,766 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:16:56,768 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:16:56,768 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:16:56,768 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:16:56,768 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:16:56,768 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:16:56,769 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:16:56,769 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:16:56,769 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:16:56,769 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:16:56,769 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:16:56,771 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:16:56,771 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 -> 90c8922c67b3eb8c55716b63a408098d1b23a21e [2018-11-28 23:16:56,836 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:16:56,853 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:16:56,860 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:16:56,862 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:16:56,862 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:16:56,863 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-restricted-15/c.01-no-inv_true-termination_true-no-overflow.c [2018-11-28 23:16:56,927 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea53609e8/47d4dfbf28fb4a6e8bed686e373dab7d/FLAGb5a4cfe08 [2018-11-28 23:16:57,424 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:16:57,424 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-restricted-15/c.01-no-inv_true-termination_true-no-overflow.c [2018-11-28 23:16:57,431 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea53609e8/47d4dfbf28fb4a6e8bed686e373dab7d/FLAGb5a4cfe08 [2018-11-28 23:16:57,767 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea53609e8/47d4dfbf28fb4a6e8bed686e373dab7d [2018-11-28 23:16:57,771 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:16:57,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:16:57,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:16:57,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:16:57,778 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:16:57,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:16:57" (1/1) ... [2018-11-28 23:16:57,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5729685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:57, skipping insertion in model container [2018-11-28 23:16:57,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:16:57" (1/1) ... [2018-11-28 23:16:57,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:16:57,809 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:16:58,053 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:16:58,057 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:16:58,081 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:16:58,099 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:16:58,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:58 WrapperNode [2018-11-28 23:16:58,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:16:58,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:16:58,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:16:58,101 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:16:58,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:58" (1/1) ... [2018-11-28 23:16:58,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:58" (1/1) ... [2018-11-28 23:16:58,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:16:58,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:16:58,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:16:58,146 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:16:58,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:58" (1/1) ... [2018-11-28 23:16:58,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:58" (1/1) ... [2018-11-28 23:16:58,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:58" (1/1) ... [2018-11-28 23:16:58,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:58" (1/1) ... [2018-11-28 23:16:58,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:58" (1/1) ... [2018-11-28 23:16:58,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:58" (1/1) ... [2018-11-28 23:16:58,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:58" (1/1) ... [2018-11-28 23:16:58,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:16:58,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:16:58,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:16:58,171 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:16:58,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:58" (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 23:16:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:16:58,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:16:58,492 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:16:58,492 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 23:16:58,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:16:58 BoogieIcfgContainer [2018-11-28 23:16:58,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:16:58,494 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:16:58,495 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:16:58,499 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:16:58,500 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:16:58,500 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:16:57" (1/3) ... [2018-11-28 23:16:58,501 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d334d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:16:58, skipping insertion in model container [2018-11-28 23:16:58,502 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:16:58,502 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:58" (2/3) ... [2018-11-28 23:16:58,502 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d334d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:16:58, skipping insertion in model container [2018-11-28 23:16:58,502 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:16:58,503 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:16:58" (3/3) ... [2018-11-28 23:16:58,504 INFO L375 chiAutomizerObserver]: Analyzing ICFG c.01-no-inv_true-termination_true-no-overflow.c [2018-11-28 23:16:58,563 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:16:58,564 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:16:58,564 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:16:58,564 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:16:58,564 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:16:58,564 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:16:58,564 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:16:58,565 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:16:58,565 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:16:58,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 23:16:58,611 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:16:58,612 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:16:58,612 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:16:58,618 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:16:58,618 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:16:58,618 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:16:58,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 23:16:58,620 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:16:58,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:16:58,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:16:58,620 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:16:58,621 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:16:58,630 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 8#L10-2true [2018-11-28 23:16:58,631 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~x~0 >= 0);main_~y~0 := 1; 3#L12-2true assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 10#L12-3true main_~x~0 := main_~x~0 - 1; 8#L10-2true [2018-11-28 23:16:58,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:58,638 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 23:16:58,640 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:58,640 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:58,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:58,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:58,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:58,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:58,751 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2018-11-28 23:16:58,751 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:58,751 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:58,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:58,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:58,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:58,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:58,770 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2018-11-28 23:16:58,770 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:58,771 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:58,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:58,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:58,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:59,010 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 13 [2018-11-28 23:16:59,051 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:59,052 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:59,052 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:59,053 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:59,053 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:16:59,053 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:59,053 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:59,053 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:59,054 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 23:16:59,054 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:59,054 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:59,082 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 23:16:59,108 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 23:16:59,123 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 23:16:59,411 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-28 23:16:59,419 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:59,420 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) [2018-11-28 23:16:59,434 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:59,434 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:59,478 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:59,478 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 [2018-11-28 23:16:59,484 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:59,485 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:59,506 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:59,507 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 [2018-11-28 23:16:59,512 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:59,512 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 [2018-11-28 23:16:59,538 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:16:59,538 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:59,567 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:16:59,569 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:59,569 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:59,569 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:59,569 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:59,569 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:16:59,570 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:59,570 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:59,570 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:59,570 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 23:16:59,570 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:59,570 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:59,572 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 23:16:59,600 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 23:16:59,609 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 23:16:59,778 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:59,784 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:16:59,786 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 23:16:59,788 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:59,788 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:16:59,789 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:59,789 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:59,789 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:59,792 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:16:59,792 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:16:59,805 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:16:59,813 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:16:59,813 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:16:59,816 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:16:59,816 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:16:59,817 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:16:59,817 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-28 23:16:59,819 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:16:59,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:59,896 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:59,911 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:00,079 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 23:17:00,097 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 23:17:00,098 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-11-28 23:17:00,163 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2018-11-28 23:17:00,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-28 23:17:00,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:17:00,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2018-11-28 23:17:00,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2018-11-28 23:17:00,179 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:00,181 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-28 23:17:00,181 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:00,181 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2018-11-28 23:17:00,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:00,183 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2018-11-28 23:17:00,187 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:17:00,194 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2018-11-28 23:17:00,196 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-28 23:17:00,197 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-28 23:17:00,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-11-28 23:17:00,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:17:00,198 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 23:17:00,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-11-28 23:17:00,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2018-11-28 23:17:00,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-28 23:17:00,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2018-11-28 23:17:00,228 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-11-28 23:17:00,228 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-11-28 23:17:00,229 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:17:00,229 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2018-11-28 23:17:00,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:17:00,230 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:17:00,230 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:17:00,230 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 23:17:00,230 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:17:00,231 INFO L794 eck$LassoCheckResult]: Stem: 73#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 74#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 70#L12-2 [2018-11-28 23:17:00,231 INFO L796 eck$LassoCheckResult]: Loop: 70#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 70#L12-2 [2018-11-28 23:17:00,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:00,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-28 23:17:00,231 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:00,231 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:00,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:00,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:00,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:00,240 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:00,241 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-11-28 23:17:00,241 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:00,241 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:00,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:00,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:00,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:00,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:00,249 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2018-11-28 23:17:00,249 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:00,249 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:00,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:00,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:00,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:00,319 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:17:00,320 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:17:00,320 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:17:00,320 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:17:00,320 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:17:00,320 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:00,320 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:17:00,320 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:17:00,321 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-11-28 23:17:00,321 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:17:00,321 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:17:00,323 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 23:17:00,330 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 23:17:00,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:17:00,364 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 23:17:00,368 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 23:17:00,372 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 23:17:00,382 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 23:17:00,592 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 23:17:00,718 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-28 23:17:00,944 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:17:00,944 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) [2018-11-28 23:17:00,951 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:00,951 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:00,974 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:17:00,974 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 [2018-11-28 23:17:00,983 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:00,983 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:00,987 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:17:00,987 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 23:17:01,007 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:01,007 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:01,031 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:17:01,031 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:01,072 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:17:01,079 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:17:01,079 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:17:01,080 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:17:01,080 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:17:01,080 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:17:01,080 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:01,080 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:17:01,080 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:17:01,080 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-11-28 23:17:01,081 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:17:01,081 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:17:01,083 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 23:17:01,094 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 23:17:01,099 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 23:17:01,101 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 23:17:01,108 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 23:17:01,150 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 23:17:01,156 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 23:17:01,524 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 23:17:01,593 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:17:01,594 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:17:01,594 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 23:17:01,595 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:01,595 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:01,595 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:01,596 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:01,599 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:17:01,599 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:17:01,604 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:01,605 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 23:17:01,605 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:01,605 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:01,606 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:01,606 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:01,606 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:01,606 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:17:01,607 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:01,607 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:01,608 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 23:17:01,608 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:01,609 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:01,609 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:01,609 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:01,609 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:01,610 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:17:01,610 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:01,611 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:01,611 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 23:17:01,612 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:01,612 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:01,612 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:01,612 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:01,612 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:01,613 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:17:01,613 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:01,615 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:01,615 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 23:17:01,616 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:01,616 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:01,616 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:01,616 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:01,621 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:17:01,621 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:17:01,731 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:17:01,784 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-28 23:17:01,789 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-28 23:17:01,790 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:17:01,793 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 23:17:01,793 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:17:01,793 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2147483648*ULTIMATE.start_main_~y~0 + 2147483647*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2018-11-28 23:17:01,829 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 23:17:02,063 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:02,071 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:02,080 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:02,080 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 23:17:02,080 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 23:17:02,080 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2018-11-28 23:17:02,124 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 5 states. [2018-11-28 23:17:02,126 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 23:17:02,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:17:02,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-28 23:17:02,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2018-11-28 23:17:02,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:02,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-28 23:17:02,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:02,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-28 23:17:02,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:02,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2018-11-28 23:17:02,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:17:02,130 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 13 transitions. [2018-11-28 23:17:02,130 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-28 23:17:02,130 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-11-28 23:17:02,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2018-11-28 23:17:02,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:17:02,131 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-11-28 23:17:02,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2018-11-28 23:17:02,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2018-11-28 23:17:02,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-28 23:17:02,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2018-11-28 23:17:02,132 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-28 23:17:02,133 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-28 23:17:02,133 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:17:02,133 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2018-11-28 23:17:02,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:17:02,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:17:02,134 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:17:02,134 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2018-11-28 23:17:02,134 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:17:02,134 INFO L794 eck$LassoCheckResult]: Stem: 130#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 131#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 128#L12-2 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 129#L12-3 main_~x~0 := main_~x~0 - 1; 132#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 127#L12-2 [2018-11-28 23:17:02,134 INFO L796 eck$LassoCheckResult]: Loop: 127#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 127#L12-2 [2018-11-28 23:17:02,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:02,135 INFO L82 PathProgramCache]: Analyzing trace with hash 29867642, now seen corresponding path program 2 times [2018-11-28 23:17:02,135 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:02,135 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:02,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:02,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:02,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:02,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:02,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:02,146 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2018-11-28 23:17:02,146 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:02,146 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:02,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:02,147 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:17:02,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:02,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:02,151 INFO L82 PathProgramCache]: Analyzing trace with hash 925896921, now seen corresponding path program 1 times [2018-11-28 23:17:02,152 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:02,152 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:02,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:02,153 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:17:02,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:02,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:17:02,284 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:17:02,284 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:17:02,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:02,316 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:02,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:17:02,393 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:17:02,394 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-11-28 23:17:02,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 23:17:02,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-28 23:17:02,419 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 7 states. [2018-11-28 23:17:02,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:17:02,545 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2018-11-28 23:17:02,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 23:17:02,547 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2018-11-28 23:17:02,548 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:17:02,549 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 8 states and 10 transitions. [2018-11-28 23:17:02,549 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-28 23:17:02,549 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-28 23:17:02,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2018-11-28 23:17:02,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:17:02,550 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-11-28 23:17:02,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2018-11-28 23:17:02,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-11-28 23:17:02,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-28 23:17:02,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-11-28 23:17:02,551 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-28 23:17:02,552 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-28 23:17:02,552 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:17:02,552 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2018-11-28 23:17:02,552 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:17:02,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:17:02,553 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:17:02,553 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2018-11-28 23:17:02,553 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:17:02,553 INFO L794 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 184#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 181#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 182#L12-2 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 186#L12-3 main_~x~0 := main_~x~0 - 1; 185#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 180#L12-2 [2018-11-28 23:17:02,553 INFO L796 eck$LassoCheckResult]: Loop: 180#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 180#L12-2 [2018-11-28 23:17:02,554 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:02,554 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 2 times [2018-11-28 23:17:02,554 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:02,554 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:02,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:02,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:02,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:02,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:02,574 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 3 times [2018-11-28 23:17:02,574 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:02,574 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:02,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:02,576 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:17:02,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:02,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:02,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:02,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1360285992, now seen corresponding path program 3 times [2018-11-28 23:17:02,589 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:02,589 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:02,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:02,592 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:17:02,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:02,713 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:17:02,713 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:17:02,713 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:17:02,724 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 23:17:02,738 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-28 23:17:02,738 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 23:17:02,739 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:02,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:17:02,803 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:17:02,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-11-28 23:17:02,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 23:17:02,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-28 23:17:02,842 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 8 states. [2018-11-28 23:17:02,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:17:02,974 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2018-11-28 23:17:02,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 23:17:02,977 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2018-11-28 23:17:02,978 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:17:02,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 12 transitions. [2018-11-28 23:17:02,979 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-28 23:17:02,979 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-28 23:17:02,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2018-11-28 23:17:02,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:17:02,979 INFO L705 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2018-11-28 23:17:02,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2018-11-28 23:17:02,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2018-11-28 23:17:02,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-28 23:17:02,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2018-11-28 23:17:02,981 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-11-28 23:17:02,981 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-11-28 23:17:02,981 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 23:17:02,981 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2018-11-28 23:17:02,982 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:17:02,982 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:17:02,982 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:17:02,983 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2018-11-28 23:17:02,983 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:17:02,983 INFO L794 eck$LassoCheckResult]: Stem: 241#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 242#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 239#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 240#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 245#L12-2 assume !(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824); 244#L12-3 main_~x~0 := main_~x~0 - 1; 243#L10-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 238#L12-2 [2018-11-28 23:17:02,983 INFO L796 eck$LassoCheckResult]: Loop: 238#L12-2 assume !!(main_~x~0 > main_~y~0 && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 238#L12-2 [2018-11-28 23:17:02,983 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:02,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1360231782, now seen corresponding path program 4 times [2018-11-28 23:17:02,984 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:02,984 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:02,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:02,985 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:17:02,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:02,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:02,998 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 4 times [2018-11-28 23:17:02,998 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:03,001 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:03,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:03,002 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:17:03,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:03,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:03,010 INFO L82 PathProgramCache]: Analyzing trace with hash 782487737, now seen corresponding path program 5 times [2018-11-28 23:17:03,010 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:03,010 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:03,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:03,016 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:17:03,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:03,200 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 29 [2018-11-28 23:17:03,210 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:17:03,210 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:17:03,210 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:17:03,210 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:17:03,211 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:17:03,211 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:03,211 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:17:03,211 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:17:03,211 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-11-28 23:17:03,212 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:17:03,212 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:17:03,214 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 23:17:03,217 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 23:17:03,219 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 23:17:03,221 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 23:17:03,227 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 23:17:03,245 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 23:17:03,249 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 23:17:03,331 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:17:03,332 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:03,336 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:03,336 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:03,343 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:17:03,343 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:03,365 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:03,366 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:03,368 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:17:03,369 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:03,390 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:03,390 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:03,393 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:17:03,393 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:03,416 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:03,417 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:03,461 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:17:03,462 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2018-11-28 23:17:03,466 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:03,466 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:03,489 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:17:03,490 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:03,516 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:17:03,517 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:17:03,518 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:17:03,518 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:17:03,518 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:17:03,518 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:17:03,518 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:03,518 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:17:03,518 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:17:03,518 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-11-28 23:17:03,518 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:17:03,519 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:17:03,520 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 23:17:03,525 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 23:17:03,528 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 23:17:03,531 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 23:17:03,539 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 23:17:03,541 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 23:17:03,545 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 23:17:03,663 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:17:03,663 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:17:03,664 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 23:17:03,665 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:03,665 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:03,665 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:03,665 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:03,666 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:03,666 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:17:03,666 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:03,667 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:03,668 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 23:17:03,668 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:03,668 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:03,668 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:03,669 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:03,669 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:03,669 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:17:03,669 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:03,670 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:03,670 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 23:17:03,671 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:03,671 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:03,671 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:03,671 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:03,672 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:03,677 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:17:03,677 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:03,678 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:03,678 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 23:17:03,679 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:03,679 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:03,679 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:03,679 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:03,686 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:17:03,686 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:17:03,691 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:03,696 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 23:17:03,697 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:03,697 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:03,699 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:03,699 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:03,700 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:17:03,700 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:17:03,705 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:03,710 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 23:17:03,711 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:03,711 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:03,711 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:03,711 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:03,712 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:17:03,712 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:17:03,723 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:03,725 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 23:17:03,728 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:03,728 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:03,728 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:03,729 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:03,734 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:17:03,737 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:17:03,785 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:17:03,803 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-28 23:17:03,804 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-28 23:17:03,804 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:17:03,805 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 23:17:03,805 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:17:03,807 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483647 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2018-11-28 23:17:03,840 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 23:17:04,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:04,144 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:04,149 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:04,150 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 23:17:04,150 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 23:17:04,150 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-28 23:17:04,194 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 15 states and 19 transitions. Complement of second has 5 states. [2018-11-28 23:17:04,196 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 23:17:04,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:17:04,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-28 23:17:04,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 1 letters. [2018-11-28 23:17:04,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:04,197 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:17:04,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:04,272 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:04,280 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:04,280 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 23:17:04,280 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:17:04,280 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-28 23:17:04,304 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 15 states and 19 transitions. Complement of second has 5 states. [2018-11-28 23:17:04,305 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 23:17:04,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:17:04,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-28 23:17:04,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 1 letters. [2018-11-28 23:17:04,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:04,306 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:17:04,340 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:04,348 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:04,358 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:04,358 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 23:17:04,359 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:17:04,359 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-28 23:17:04,406 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 13 transitions. Complement of second has 4 states. [2018-11-28 23:17:04,407 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 23:17:04,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:17:04,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-28 23:17:04,408 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2018-11-28 23:17:04,408 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:04,408 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 1 letters. [2018-11-28 23:17:04,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:04,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 23:17:04,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:04,409 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2018-11-28 23:17:04,410 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:17:04,410 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2018-11-28 23:17:04,410 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:17:04,410 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:17:04,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:17:04,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:17:04,410 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:17:04,410 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:17:04,410 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:17:04,411 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-28 23:17:04,411 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:17:04,411 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:17:04,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:17:04,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:17:04 BoogieIcfgContainer [2018-11-28 23:17:04,421 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:17:04,421 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:17:04,421 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:17:04,421 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:17:04,422 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:16:58" (3/4) ... [2018-11-28 23:17:04,427 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:17:04,427 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:17:04,428 INFO L168 Benchmark]: Toolchain (without parser) took 6656.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.0 MB). Free memory was 950.0 MB in the beginning and 1.2 GB in the end (delta: -225.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:17:04,429 INFO L168 Benchmark]: CDTParser took 0.16 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 23:17:04,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.56 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:17:04,430 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.41 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:17:04,431 INFO L168 Benchmark]: Boogie Preprocessor took 24.63 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:17:04,432 INFO L168 Benchmark]: RCFGBuilder took 322.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:17:04,433 INFO L168 Benchmark]: BuchiAutomizer took 5926.44 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -63.3 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:17:04,434 INFO L168 Benchmark]: Witness Printer took 5.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:17:04,443 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 326.56 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.3 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 44.41 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.63 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 322.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5926.44 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -63.3 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function -2147483648 * y + 2147483647 * x and consists of 3 locations. One nondeterministic module has affine ranking function -2 * y + 2147483647 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.8s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 4.2s. Construction of modules took 0.1s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 25 SDtfs, 29 SDslu, 10 SDs, 0 SdLazy, 75 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf98 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf93 smp100 dnf100 smp100 tf102 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...