./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7408fe5ba42f5c474832c90e26f3e7ef2342554c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:44:15,743 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:44:15,748 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:44:15,760 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:44:15,761 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:44:15,762 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:44:15,763 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:44:15,765 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:44:15,766 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:44:15,767 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:44:15,768 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:44:15,768 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:44:15,769 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:44:15,770 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:44:15,771 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:44:15,772 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:44:15,775 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:44:15,777 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:44:15,782 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:44:15,785 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:44:15,787 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:44:15,793 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:44:15,799 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:44:15,800 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:44:15,800 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:44:15,801 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:44:15,805 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:44:15,806 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:44:15,807 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:44:15,809 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:44:15,809 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:44:15,810 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:44:15,810 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:44:15,810 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:44:15,811 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:44:15,815 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:44:15,815 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 23:44:15,851 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:44:15,851 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:44:15,853 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:44:15,853 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:44:15,853 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:44:15,853 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:44:15,854 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:44:15,855 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:44:15,855 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:44:15,855 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:44:15,855 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:44:15,856 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:44:15,856 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:44:15,856 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:44:15,857 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:44:15,857 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:44:15,857 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:44:15,857 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:44:15,857 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:44:15,857 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:44:15,858 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:44:15,858 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:44:15,858 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:44:15,858 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:44:15,858 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:44:15,859 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:44:15,859 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:44:15,859 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:44:15,859 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:44:15,859 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:44:15,859 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:44:15,863 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:44:15,863 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7408fe5ba42f5c474832c90e26f3e7ef2342554c [2018-11-28 23:44:15,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:44:15,931 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:44:15,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:44:15,937 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:44:15,937 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:44:15,938 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i [2018-11-28 23:44:16,009 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43c70f1f6/e5786f6fa2eb4d7893377a573be67828/FLAG50452dab0 [2018-11-28 23:44:16,421 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:44:16,421 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i [2018-11-28 23:44:16,427 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43c70f1f6/e5786f6fa2eb4d7893377a573be67828/FLAG50452dab0 [2018-11-28 23:44:16,791 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43c70f1f6/e5786f6fa2eb4d7893377a573be67828 [2018-11-28 23:44:16,795 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:44:16,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:44:16,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:44:16,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:44:16,802 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:44:16,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:44:16" (1/1) ... [2018-11-28 23:44:16,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@de2fd2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:16, skipping insertion in model container [2018-11-28 23:44:16,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:44:16" (1/1) ... [2018-11-28 23:44:16,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:44:16,836 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:44:17,072 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:44:17,080 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:44:17,103 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:44:17,123 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:44:17,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:17 WrapperNode [2018-11-28 23:44:17,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:44:17,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:44:17,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:44:17,125 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:44:17,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:17" (1/1) ... [2018-11-28 23:44:17,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:17" (1/1) ... [2018-11-28 23:44:17,167 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:44:17,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:44:17,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:44:17,169 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:44:17,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:17" (1/1) ... [2018-11-28 23:44:17,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:17" (1/1) ... [2018-11-28 23:44:17,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:17" (1/1) ... [2018-11-28 23:44:17,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:17" (1/1) ... [2018-11-28 23:44:17,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:17" (1/1) ... [2018-11-28 23:44:17,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:17" (1/1) ... [2018-11-28 23:44:17,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:17" (1/1) ... [2018-11-28 23:44:17,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:44:17,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:44:17,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:44:17,203 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:44:17,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:44:17,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:44:17,551 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:44:17,552 INFO L280 CfgBuilder]: Removed 9 assue(true) statements. [2018-11-28 23:44:17,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:44:17 BoogieIcfgContainer [2018-11-28 23:44:17,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:44:17,553 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:44:17,553 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:44:17,558 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:44:17,559 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:44:17,559 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:44:16" (1/3) ... [2018-11-28 23:44:17,560 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e704505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:44:17, skipping insertion in model container [2018-11-28 23:44:17,561 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:44:17,561 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:17" (2/3) ... [2018-11-28 23:44:17,561 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e704505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:44:17, skipping insertion in model container [2018-11-28 23:44:17,561 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:44:17,561 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:44:17" (3/3) ... [2018-11-28 23:44:17,565 INFO L375 chiAutomizerObserver]: Analyzing ICFG cggmp2005b_true-unreach-call_true-termination.c.i [2018-11-28 23:44:17,630 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:44:17,631 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:44:17,631 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:44:17,631 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:44:17,631 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:44:17,632 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:44:17,632 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:44:17,632 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:44:17,634 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:44:17,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-28 23:44:17,691 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 23:44:17,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:44:17,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:44:17,703 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:44:17,703 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-28 23:44:17,703 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:44:17,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-28 23:44:17,706 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 23:44:17,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:44:17,706 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:44:17,707 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:44:17,707 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-28 23:44:17,718 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 8#L21-3true [2018-11-28 23:44:17,719 INFO L796 eck$LassoCheckResult]: Loop: 8#L21-3true assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 3#L17-2true assume !(main_~j~0 < 20); 13#L17-3true main_~k~0 := 4; 11#L21-2true assume !true; 8#L21-3true [2018-11-28 23:44:17,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:17,727 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 23:44:17,729 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:17,731 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:17,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:17,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:17,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:17,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:17,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1238515, now seen corresponding path program 1 times [2018-11-28 23:44:17,847 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:17,847 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:17,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:17,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:17,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:17,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:17,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:44:17,883 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:44:17,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-11-28 23:44:17,888 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:44:17,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 23:44:17,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 23:44:17,905 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2018-11-28 23:44:17,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:44:17,912 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2018-11-28 23:44:17,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 23:44:17,915 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2018-11-28 23:44:17,916 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 23:44:17,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 5 states and 7 transitions. [2018-11-28 23:44:17,925 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-28 23:44:17,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-28 23:44:17,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2018-11-28 23:44:17,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:44:17,927 INFO L705 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-11-28 23:44:17,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2018-11-28 23:44:17,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-11-28 23:44:17,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-28 23:44:17,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2018-11-28 23:44:17,960 INFO L728 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-11-28 23:44:17,960 INFO L608 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-11-28 23:44:17,960 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:44:17,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2018-11-28 23:44:17,961 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 23:44:17,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:44:17,962 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:44:17,962 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:44:17,962 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-28 23:44:17,963 INFO L794 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 35#L21-3 [2018-11-28 23:44:17,963 INFO L796 eck$LassoCheckResult]: Loop: 35#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 32#L17-2 assume !(main_~j~0 < 20); 33#L17-3 main_~k~0 := 4; 36#L21-2 assume !(main_~k~0 <= 3); 35#L21-3 [2018-11-28 23:44:17,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:17,963 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-11-28 23:44:17,964 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:17,964 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:17,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:17,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:17,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:17,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:17,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1238511, now seen corresponding path program 1 times [2018-11-28 23:44:17,971 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:17,972 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:17,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:17,973 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:44:17,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:17,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:17,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:17,988 INFO L82 PathProgramCache]: Analyzing trace with hash 29867662, now seen corresponding path program 1 times [2018-11-28 23:44:17,989 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:17,989 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:17,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:17,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:17,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:18,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:44:18,053 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:44:18,053 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:44:18,178 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:18,179 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:18,179 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:18,179 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:18,179 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:44:18,180 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:18,180 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:18,180 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:18,180 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration2_Loop [2018-11-28 23:44:18,180 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:18,181 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:18,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:18,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:18,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:18,332 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:18,332 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 23:44:18,347 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:44:18,347 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 23:44:18,375 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:44:18,376 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=20} Honda state: {ULTIMATE.start_main_~j~0=20} 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) [2018-11-28 23:44:18,384 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:44:18,384 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:18,418 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:44:18,418 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:44:18,444 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:44:18,445 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:18,446 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:18,446 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:18,446 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:18,446 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:44:18,446 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:18,446 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:18,446 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:18,447 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration2_Loop [2018-11-28 23:44:18,447 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:18,447 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:18,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:18,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:18,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:18,719 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-28 23:44:18,869 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-28 23:44:18,910 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:18,915 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:44:18,917 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:44:18,919 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:44:18,919 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:44:18,920 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:44:18,920 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:44:18,920 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:44:18,922 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:44:18,922 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:44:18,925 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:44:18,926 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:44:18,927 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:44:18,927 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:44:18,927 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:44:18,927 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:44:18,927 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:44:18,928 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:44:18,928 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:44:18,941 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:44:18,947 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:44:18,947 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:44:18,949 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:44:18,949 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:44:18,949 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:44:18,950 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 201 Supporting invariants [] [2018-11-28 23:44:18,951 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:44:19,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:19,080 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:19,090 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:19,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:44:19,135 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 23:44:19,136 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-28 23:44:19,179 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 4 states. [2018-11-28 23:44:19,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:44:19,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:44:19,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-28 23:44:19,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-28 23:44:19,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:19,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-28 23:44:19,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:19,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 1 letters. Loop has 8 letters. [2018-11-28 23:44:19,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:19,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 20 transitions. [2018-11-28 23:44:19,188 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2018-11-28 23:44:19,188 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 19 transitions. [2018-11-28 23:44:19,189 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-28 23:44:19,189 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-28 23:44:19,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 19 transitions. [2018-11-28 23:44:19,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:44:19,189 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2018-11-28 23:44:19,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 19 transitions. [2018-11-28 23:44:19,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2018-11-28 23:44:19,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-28 23:44:19,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 16 transitions. [2018-11-28 23:44:19,192 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 16 transitions. [2018-11-28 23:44:19,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:44:19,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:44:19,192 INFO L87 Difference]: Start difference. First operand 10 states and 16 transitions. Second operand 3 states. [2018-11-28 23:44:19,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:44:19,200 INFO L93 Difference]: Finished difference Result 11 states and 18 transitions. [2018-11-28 23:44:19,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:44:19,201 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 18 transitions. [2018-11-28 23:44:19,203 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2018-11-28 23:44:19,203 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 18 transitions. [2018-11-28 23:44:19,204 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-28 23:44:19,204 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-28 23:44:19,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 18 transitions. [2018-11-28 23:44:19,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:44:19,204 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2018-11-28 23:44:19,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 18 transitions. [2018-11-28 23:44:19,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-28 23:44:19,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-28 23:44:19,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 18 transitions. [2018-11-28 23:44:19,207 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2018-11-28 23:44:19,207 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2018-11-28 23:44:19,207 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:44:19,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 18 transitions. [2018-11-28 23:44:19,208 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2018-11-28 23:44:19,208 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:44:19,208 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:44:19,208 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 23:44:19,209 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:44:19,209 INFO L794 eck$LassoCheckResult]: Stem: 111#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 112#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 113#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 107#L17-2 [2018-11-28 23:44:19,209 INFO L796 eck$LassoCheckResult]: Loop: 107#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 107#L17-2 [2018-11-28 23:44:19,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:19,209 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2018-11-28 23:44:19,210 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:19,210 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:19,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:19,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:19,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:19,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:19,221 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-11-28 23:44:19,221 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:19,221 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:19,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:19,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:19,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:19,227 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:19,227 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 2 times [2018-11-28 23:44:19,228 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:19,228 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:19,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:19,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:19,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:19,436 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 17 [2018-11-28 23:44:19,449 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:19,450 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:19,450 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:19,450 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:19,450 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:44:19,451 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:19,451 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:19,451 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:19,451 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration3_Lasso [2018-11-28 23:44:19,451 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:19,452 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:19,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:19,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:19,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:19,587 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:19,587 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:19,591 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:44:19,591 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:44:19,595 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:44:19,595 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=0} Honda state: {ULTIMATE.start_main_~k~0=9} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:19,617 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:44:19,617 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:19,645 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:44:19,646 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:44:21,310 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:44:21,313 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:21,314 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:21,314 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:21,314 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:21,314 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:44:21,314 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:21,314 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:21,314 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:21,315 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration3_Lasso [2018-11-28 23:44:21,315 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:21,315 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:21,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:21,323 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 23:44:21,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:21,712 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-28 23:44:21,835 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:21,835 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:44:21,837 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:44:21,838 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:44:21,839 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:44:21,841 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:44:21,841 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:44:21,846 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:44:21,847 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:44:21,860 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:44:21,862 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:44:21,863 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:44:21,863 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:44:21,863 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:44:21,863 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:44:21,869 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:44:21,869 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:44:21,910 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:44:21,931 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:44:21,933 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:44:21,934 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:44:21,940 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 23:44:21,941 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:44:21,941 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 39 Supporting invariants [1*ULTIMATE.start_main_~i~0 - 1 >= 0] [2018-11-28 23:44:21,974 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 23:44:22,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:22,105 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:22,130 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:22,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:44:22,131 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2018-11-28 23:44:22,132 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 18 transitions. cyclomatic complexity: 10 Second operand 4 states. [2018-11-28 23:44:22,246 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 18 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 20 states and 33 transitions. Complement of second has 6 states. [2018-11-28 23:44:22,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:44:22,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:44:22,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2018-11-28 23:44:22,248 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-28 23:44:22,248 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:22,248 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-28 23:44:22,248 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:22,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 23:44:22,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:22,249 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 33 transitions. [2018-11-28 23:44:22,251 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:44:22,251 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 17 states and 27 transitions. [2018-11-28 23:44:22,252 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-28 23:44:22,252 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-28 23:44:22,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 27 transitions. [2018-11-28 23:44:22,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:44:22,252 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2018-11-28 23:44:22,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 27 transitions. [2018-11-28 23:44:22,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2018-11-28 23:44:22,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 23:44:22,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 26 transitions. [2018-11-28 23:44:22,255 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 26 transitions. [2018-11-28 23:44:22,255 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 26 transitions. [2018-11-28 23:44:22,255 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:44:22,256 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 26 transitions. [2018-11-28 23:44:22,256 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:44:22,257 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:44:22,257 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:44:22,257 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-28 23:44:22,257 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:44:22,257 INFO L794 eck$LassoCheckResult]: Stem: 186#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 187#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 188#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 183#L17-2 assume !(main_~j~0 < 20); 184#L17-3 main_~k~0 := 4; 191#L21-2 [2018-11-28 23:44:22,258 INFO L796 eck$LassoCheckResult]: Loop: 191#L21-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 191#L21-2 [2018-11-28 23:44:22,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:22,258 INFO L82 PathProgramCache]: Analyzing trace with hash 29869391, now seen corresponding path program 1 times [2018-11-28 23:44:22,258 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:22,258 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:22,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:22,260 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:44:22,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:22,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:44:22,368 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:44:22,368 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:44:22,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:22,390 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:22,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:44:22,464 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:44:22,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-11-28 23:44:22,465 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 23:44:22,465 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:22,465 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2018-11-28 23:44:22,465 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:22,465 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:22,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:22,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:22,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:22,494 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:22,494 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:22,494 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:22,494 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:22,494 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:44:22,494 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:22,495 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:22,495 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:22,495 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration4_Loop [2018-11-28 23:44:22,495 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:22,495 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:22,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:22,556 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:22,556 INFO L412 LassoAnalysis]: Checking for nontermination... 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 23:44:22,559 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:44:22,559 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:22,594 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:44:22,594 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:44:22,623 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:44:22,625 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:22,625 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:22,625 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:22,625 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:22,625 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:44:22,626 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:22,626 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:22,626 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:22,626 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration4_Loop [2018-11-28 23:44:22,626 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:22,627 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:22,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:22,668 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:22,668 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:44:22,669 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:44:22,670 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:44:22,671 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:44:22,671 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:44:22,671 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:44:22,671 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:44:22,672 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:44:22,672 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:44:22,676 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:44:22,678 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:44:22,679 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:44:22,679 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:44:22,679 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:44:22,680 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:44:22,680 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2018-11-28 23:44:22,680 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:44:22,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:22,727 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:22,747 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:22,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:44:22,748 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:44:22,748 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 26 transitions. cyclomatic complexity: 14 Second operand 2 states. [2018-11-28 23:44:22,772 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 26 transitions. cyclomatic complexity: 14. Second operand 2 states. Result 47 states and 75 transitions. Complement of second has 5 states. [2018-11-28 23:44:22,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:44:22,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:44:22,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-28 23:44:22,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-28 23:44:22,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:22,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 1 letters. [2018-11-28 23:44:22,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:22,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 23:44:22,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:22,778 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 75 transitions. [2018-11-28 23:44:22,780 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:44:22,783 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 31 states and 51 transitions. [2018-11-28 23:44:22,783 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-28 23:44:22,783 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-28 23:44:22,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 51 transitions. [2018-11-28 23:44:22,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:44:22,784 INFO L705 BuchiCegarLoop]: Abstraction has 31 states and 51 transitions. [2018-11-28 23:44:22,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 51 transitions. [2018-11-28 23:44:22,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 16. [2018-11-28 23:44:22,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 23:44:22,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 25 transitions. [2018-11-28 23:44:22,788 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 25 transitions. [2018-11-28 23:44:22,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 23:44:22,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-28 23:44:22,789 INFO L87 Difference]: Start difference. First operand 16 states and 25 transitions. Second operand 8 states. [2018-11-28 23:44:22,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:44:22,861 INFO L93 Difference]: Finished difference Result 17 states and 26 transitions. [2018-11-28 23:44:22,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 23:44:22,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 26 transitions. [2018-11-28 23:44:22,863 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:44:22,864 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 26 transitions. [2018-11-28 23:44:22,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-28 23:44:22,864 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-28 23:44:22,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 26 transitions. [2018-11-28 23:44:22,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:44:22,865 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2018-11-28 23:44:22,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 26 transitions. [2018-11-28 23:44:22,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-28 23:44:22,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-28 23:44:22,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2018-11-28 23:44:22,867 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2018-11-28 23:44:22,867 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2018-11-28 23:44:22,867 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 23:44:22,868 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 26 transitions. [2018-11-28 23:44:22,868 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:44:22,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:44:22,869 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:44:22,869 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1] [2018-11-28 23:44:22,869 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:44:22,869 INFO L794 eck$LassoCheckResult]: Stem: 342#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 343#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 340#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 341#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 351#L17-2 assume !(main_~j~0 < 20); 348#L17-3 main_~k~0 := 4; 347#L21-2 assume !(main_~k~0 <= 3); 344#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 345#L17-2 assume !(main_~j~0 < 20); 338#L17-3 main_~k~0 := 4; 346#L21-2 [2018-11-28 23:44:22,870 INFO L796 eck$LassoCheckResult]: Loop: 346#L21-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 346#L21-2 [2018-11-28 23:44:22,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:22,870 INFO L82 PathProgramCache]: Analyzing trace with hash 352026178, now seen corresponding path program 1 times [2018-11-28 23:44:22,870 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:22,870 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:22,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:22,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:22,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:22,934 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 23:44:22,934 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:44:22,934 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 23:44:22,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:22,956 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:23,051 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 23:44:23,072 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:44:23,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-11-28 23:44:23,073 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 23:44:23,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:23,073 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 2 times [2018-11-28 23:44:23,073 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:23,074 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:23,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:23,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:23,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:23,100 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:23,100 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:23,100 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:23,100 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:23,100 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:44:23,101 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:23,101 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:23,101 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:23,101 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration5_Loop [2018-11-28 23:44:23,102 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:23,102 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:23,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:23,169 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:23,170 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 23:44:23,173 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:44:23,173 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 23:44:23,197 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:44:23,197 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:44:23,219 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:44:23,220 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:23,221 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:23,221 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:23,221 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:23,221 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:44:23,221 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:23,222 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:23,222 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:23,222 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration5_Loop [2018-11-28 23:44:23,222 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:23,222 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:23,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:23,299 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:23,299 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:44:23,301 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:44:23,302 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:44:23,302 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:44:23,303 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:44:23,303 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:44:23,303 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:44:23,303 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:44:23,304 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:44:23,308 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:44:23,312 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:44:23,313 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:44:23,313 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:44:23,313 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:44:23,313 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:44:23,313 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2018-11-28 23:44:23,314 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:44:23,350 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:23,360 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:23,365 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:23,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:44:23,366 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:44:23,366 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2018-11-28 23:44:23,381 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 43 states and 68 transitions. Complement of second has 5 states. [2018-11-28 23:44:23,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:44:23,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:44:23,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-28 23:44:23,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 10 letters. Loop has 1 letters. [2018-11-28 23:44:23,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:23,384 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:44:23,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:23,427 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:23,435 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:23,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:44:23,435 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 23:44:23,436 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2018-11-28 23:44:23,447 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 43 states and 68 transitions. Complement of second has 5 states. [2018-11-28 23:44:23,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:44:23,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:44:23,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-28 23:44:23,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 10 letters. Loop has 1 letters. [2018-11-28 23:44:23,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:23,450 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:44:23,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:23,484 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:23,493 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:23,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:44:23,494 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 23:44:23,494 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2018-11-28 23:44:23,507 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 32 states and 48 transitions. Complement of second has 4 states. [2018-11-28 23:44:23,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:44:23,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:44:23,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2018-11-28 23:44:23,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 10 letters. Loop has 1 letters. [2018-11-28 23:44:23,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:23,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 1 letters. [2018-11-28 23:44:23,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:23,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-28 23:44:23,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:23,512 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 48 transitions. [2018-11-28 23:44:23,513 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:44:23,513 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2018-11-28 23:44:23,514 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:44:23,514 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:44:23,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:44:23,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:44:23,514 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:23,514 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:23,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 23:44:23,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-28 23:44:23,515 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 9 states. [2018-11-28 23:44:23,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:44:23,515 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-28 23:44:23,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 23:44:23,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-28 23:44:23,515 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:44:23,516 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:44:23,516 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:44:23,516 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:44:23,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:44:23,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:44:23,516 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:23,516 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:23,516 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:23,516 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-28 23:44:23,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:44:23,517 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:44:23,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:44:23,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:44:23 BoogieIcfgContainer [2018-11-28 23:44:23,527 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:44:23,528 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:44:23,528 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:44:23,528 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:44:23,529 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:44:17" (3/4) ... [2018-11-28 23:44:23,532 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:44:23,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:44:23,533 INFO L168 Benchmark]: Toolchain (without parser) took 6737.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 951.3 MB in the beginning and 868.8 MB in the end (delta: 82.5 MB). Peak memory consumption was 226.2 MB. Max. memory is 11.5 GB. [2018-11-28 23:44:23,534 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 23:44:23,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.28 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:44:23,535 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.76 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:44:23,536 INFO L168 Benchmark]: Boogie Preprocessor took 29.70 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:44:23,536 INFO L168 Benchmark]: RCFGBuilder took 354.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -177.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-11-28 23:44:23,537 INFO L168 Benchmark]: BuchiAutomizer took 5974.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 868.8 MB in the end (delta: 249.7 MB). Peak memory consumption was 249.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:44:23,538 INFO L168 Benchmark]: Witness Printer took 4.42 ms. Allocated memory is still 1.2 GB. Free memory is still 868.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:44:23,542 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 326.28 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 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 42.76 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.70 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 354.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -177.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5974.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 868.8 MB in the end (delta: 249.7 MB). Peak memory consumption was 249.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.42 ms. Allocated memory is still 1.2 GB. Free memory is still 868.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (4 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 201 and consists of 3 locations. One deterministic module has affine ranking function -2 * j + 39 and consists of 5 locations. One deterministic module has affine ranking function -2 * k + 7 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * k + 7 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.9s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 4.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 4. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 72 SDtfs, 45 SDslu, 34 SDs, 0 SdLazy, 44 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso1 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf98 lsp87 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq167 hnf93 smp100 dnf100 smp100 tf109 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...