./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/loop-invgen/up_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/loop-invgen/up_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d0e5aa3c59efbda0d367d965a49cbb0222f117b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 03:49:43,710 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 03:49:43,712 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 03:49:43,735 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 03:49:43,735 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 03:49:43,736 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 03:49:43,738 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 03:49:43,740 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 03:49:43,742 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 03:49:43,744 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 03:49:43,745 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 03:49:43,745 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 03:49:43,746 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 03:49:43,748 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 03:49:43,749 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 03:49:43,751 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 03:49:43,752 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 03:49:43,754 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 03:49:43,757 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 03:49:43,759 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 03:49:43,760 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 03:49:43,762 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 03:49:43,765 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 03:49:43,766 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 03:49:43,766 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 03:49:43,767 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 03:49:43,769 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 03:49:43,770 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 03:49:43,771 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 03:49:43,772 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 03:49:43,773 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 03:49:43,774 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 03:49:43,774 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 03:49:43,774 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 03:49:43,776 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 03:49:43,777 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 03:49:43,777 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-14 03:49:43,796 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 03:49:43,797 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 03:49:43,798 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 03:49:43,798 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 03:49:43,799 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 03:49:43,799 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 03:49:43,799 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 03:49:43,800 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 03:49:43,800 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 03:49:43,800 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 03:49:43,800 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 03:49:43,800 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 03:49:43,801 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 03:49:43,801 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 03:49:43,801 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 03:49:43,801 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 03:49:43,801 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 03:49:43,801 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 03:49:43,802 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 03:49:43,803 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 03:49:43,803 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 03:49:43,804 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 03:49:43,804 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 03:49:43,804 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 03:49:43,804 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 03:49:43,804 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 03:49:43,804 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 03:49:43,806 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 03:49:43,806 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 03:49:43,806 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 03:49:43,806 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 03:49:43,808 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 03:49:43,808 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 -> 1d0e5aa3c59efbda0d367d965a49cbb0222f117b [2019-01-14 03:49:43,845 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 03:49:43,866 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 03:49:43,871 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 03:49:43,873 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 03:49:43,874 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 03:49:43,875 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-invgen/up_true-unreach-call_true-termination.i [2019-01-14 03:49:43,947 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48058b779/08f3cb6378c246489503ec9ad873acc3/FLAGe64d7f1e3 [2019-01-14 03:49:44,433 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 03:49:44,435 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-invgen/up_true-unreach-call_true-termination.i [2019-01-14 03:49:44,442 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48058b779/08f3cb6378c246489503ec9ad873acc3/FLAGe64d7f1e3 [2019-01-14 03:49:44,795 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48058b779/08f3cb6378c246489503ec9ad873acc3 [2019-01-14 03:49:44,799 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 03:49:44,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 03:49:44,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 03:49:44,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 03:49:44,806 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 03:49:44,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:49:44" (1/1) ... [2019-01-14 03:49:44,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fbb653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:49:44, skipping insertion in model container [2019-01-14 03:49:44,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:49:44" (1/1) ... [2019-01-14 03:49:44,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 03:49:44,850 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 03:49:45,109 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 03:49:45,113 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 03:49:45,128 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 03:49:45,142 INFO L195 MainTranslator]: Completed translation [2019-01-14 03:49:45,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:49:45 WrapperNode [2019-01-14 03:49:45,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 03:49:45,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 03:49:45,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 03:49:45,144 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 03:49:45,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:49:45" (1/1) ... [2019-01-14 03:49:45,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:49:45" (1/1) ... [2019-01-14 03:49:45,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 03:49:45,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 03:49:45,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 03:49:45,175 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 03:49:45,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:49:45" (1/1) ... [2019-01-14 03:49:45,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:49:45" (1/1) ... [2019-01-14 03:49:45,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:49:45" (1/1) ... [2019-01-14 03:49:45,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:49:45" (1/1) ... [2019-01-14 03:49:45,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:49:45" (1/1) ... [2019-01-14 03:49:45,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:49:45" (1/1) ... [2019-01-14 03:49:45,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:49:45" (1/1) ... [2019-01-14 03:49:45,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 03:49:45,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 03:49:45,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 03:49:45,195 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 03:49:45,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:49:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:49:45,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 03:49:45,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 03:49:45,528 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 03:49:45,528 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. [2019-01-14 03:49:45,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:49:45 BoogieIcfgContainer [2019-01-14 03:49:45,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 03:49:45,533 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 03:49:45,533 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 03:49:45,538 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 03:49:45,539 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:49:45,539 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 03:49:44" (1/3) ... [2019-01-14 03:49:45,541 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64286990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 03:49:45, skipping insertion in model container [2019-01-14 03:49:45,542 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:49:45,542 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:49:45" (2/3) ... [2019-01-14 03:49:45,542 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64286990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 03:49:45, skipping insertion in model container [2019-01-14 03:49:45,542 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:49:45,542 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:49:45" (3/3) ... [2019-01-14 03:49:45,545 INFO L375 chiAutomizerObserver]: Analyzing ICFG up_true-unreach-call_true-termination.i [2019-01-14 03:49:45,652 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 03:49:45,653 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 03:49:45,653 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 03:49:45,653 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 03:49:45,653 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 03:49:45,654 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 03:49:45,654 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 03:49:45,654 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 03:49:45,654 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 03:49:45,687 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-01-14 03:49:45,726 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-01-14 03:49:45,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:49:45,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:49:45,741 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-14 03:49:45,741 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-14 03:49:45,741 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 03:49:45,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-01-14 03:49:45,743 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-01-14 03:49:45,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:49:45,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:49:45,743 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-14 03:49:45,744 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-14 03:49:45,753 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_#t~post3, main_#t~post4, main_#t~post5, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;main_~i~0 := 0;main_~k~0 := 0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 10#L15-2true [2019-01-14 03:49:45,754 INFO L796 eck$LassoCheckResult]: Loop: 10#L15-2true assume !!(main_~i~0 < main_~n~0);main_#t~post2 := main_~i~0;main_~i~0 := 1 + main_#t~post2;havoc main_#t~post2;main_#t~post3 := main_~k~0;main_~k~0 := 1 + main_#t~post3;havoc main_#t~post3; 10#L15-2true [2019-01-14 03:49:45,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:49:45,761 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-01-14 03:49:45,763 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:49:45,763 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:49:45,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:49:45,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:49:45,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:49:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:49:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:49:45,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:49:45,873 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-01-14 03:49:45,873 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:49:45,873 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:49:45,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:49:45,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:49:45,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:49:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:49:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:49:45,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:49:45,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-01-14 03:49:45,889 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:49:45,889 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:49:45,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:49:45,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:49:45,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:49:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:49:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:49:45,996 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:49:45,998 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:49:45,998 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:49:45,998 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:49:45,998 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 03:49:45,998 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:49:45,999 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:49:46,000 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:49:46,000 INFO L131 ssoRankerPreferences]: Filename of dumped script: up_true-unreach-call_true-termination.i_Iteration1_Loop [2019-01-14 03:49:46,001 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:49:46,001 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:49:46,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:49:46,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:49:46,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:49:46,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:49:46,184 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:49:46,185 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:49:46,192 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:49:46,193 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:49:46,211 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:49:46,211 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:49:46,234 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:49:46,234 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:49:46,259 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 03:49:46,259 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:49:46,279 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:49:46,280 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=0} Honda state: {ULTIMATE.start_main_~k~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0=-1}, {ULTIMATE.start_main_~k~0=1}, {ULTIMATE.start_main_~k~0=1}] Lambdas: [2, 0, 1] Nus: [1, 1] 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) [2019-01-14 03:49:46,319 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:49:46,319 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:49:46,333 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:49:46,333 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3=0} Honda state: {ULTIMATE.start_main_#t~post3=0} 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 [2019-01-14 03:49:46,356 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:49:46,356 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 [2019-01-14 03:49:46,384 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 03:49:46,384 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:49:46,503 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-14 03:49:46,505 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:49:46,505 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:49:46,506 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:49:46,506 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:49:46,506 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 03:49:46,506 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:49:46,506 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:49:46,506 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:49:46,506 INFO L131 ssoRankerPreferences]: Filename of dumped script: up_true-unreach-call_true-termination.i_Iteration1_Loop [2019-01-14 03:49:46,506 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:49:46,507 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:49:46,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:49:46,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:49:46,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:49:46,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:49:46,877 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:49:46,882 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 03:49:46,884 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 03:49:46,885 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:49:46,886 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:49:46,886 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:49:46,887 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:49:46,887 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:49:46,889 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:49:46,889 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:49:46,894 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:49:46,894 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 03:49:46,895 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:49:46,896 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:49:46,896 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:49:46,896 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:49:46,896 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:49:46,897 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:49:46,897 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:49:46,903 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:49:46,904 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 03:49:46,905 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:49:46,905 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:49:46,905 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:49:46,905 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:49:46,906 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:49:46,906 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:49:46,907 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:49:46,908 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:49:46,909 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 03:49:46,910 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:49:46,910 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:49:46,910 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:49:46,910 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:49:46,911 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:49:46,912 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:49:46,912 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:49:46,919 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 03:49:46,929 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-01-14 03:49:46,929 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-01-14 03:49:46,932 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 03:49:46,932 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-14 03:49:46,932 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 03:49:46,933 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-01-14 03:49:46,935 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-14 03:49:47,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:49:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:49:47,055 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:49:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:49:47,067 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:49:47,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 03:49:47,086 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-01-14 03:49:47,088 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 2 states. [2019-01-14 03:49:47,239 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 2 states. Result 27 states and 37 transitions. Complement of second has 5 states. [2019-01-14 03:49:47,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-14 03:49:47,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-01-14 03:49:47,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2019-01-14 03:49:47,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 1 letters. Loop has 1 letters. [2019-01-14 03:49:47,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:49:47,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 2 letters. Loop has 1 letters. [2019-01-14 03:49:47,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:49:47,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 1 letters. Loop has 2 letters. [2019-01-14 03:49:47,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:49:47,248 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 37 transitions. [2019-01-14 03:49:47,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-14 03:49:47,258 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 7 states and 9 transitions. [2019-01-14 03:49:47,260 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-01-14 03:49:47,260 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-01-14 03:49:47,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2019-01-14 03:49:47,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 03:49:47,262 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-01-14 03:49:47,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2019-01-14 03:49:47,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-01-14 03:49:47,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-01-14 03:49:47,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2019-01-14 03:49:47,298 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-01-14 03:49:47,299 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2019-01-14 03:49:47,299 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 03:49:47,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2019-01-14 03:49:47,300 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-14 03:49:47,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:49:47,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:49:47,301 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-01-14 03:49:47,301 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-14 03:49:47,301 INFO L794 eck$LassoCheckResult]: Stem: 66#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_#t~post3, main_#t~post4, main_#t~post5, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;main_~i~0 := 0;main_~k~0 := 0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 67#L15-2 assume !(main_~i~0 < main_~n~0); 68#L15-3 main_~j~0 := 0; 69#L20-2 [2019-01-14 03:49:47,301 INFO L796 eck$LassoCheckResult]: Loop: 69#L20-2 assume !!(main_~j~0 < main_~n~0);__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 71#L4 assume !(0 == __VERIFIER_assert_~cond); 70#L4-2 main_#t~post4 := main_~j~0;main_~j~0 := 1 + main_#t~post4;havoc main_#t~post4;main_#t~post5 := main_~k~0;main_~k~0 := main_#t~post5 - 1;havoc main_#t~post5; 69#L20-2 [2019-01-14 03:49:47,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:49:47,302 INFO L82 PathProgramCache]: Analyzing trace with hash 31014, now seen corresponding path program 1 times [2019-01-14 03:49:47,302 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:49:47,302 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:49:47,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:49:47,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:49:47,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:49:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:49:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:49:47,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:49:47,312 INFO L82 PathProgramCache]: Analyzing trace with hash 52857, now seen corresponding path program 1 times [2019-01-14 03:49:47,312 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:49:47,313 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:49:47,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:49:47,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:49:47,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:49:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:49:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:49:47,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:49:47,331 INFO L82 PathProgramCache]: Analyzing trace with hash 923961140, now seen corresponding path program 1 times [2019-01-14 03:49:47,331 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:49:47,331 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:49:47,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:49:47,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:49:47,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:49:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:49:47,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 03:49:47,498 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 03:49:47,498 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 03:49:47,664 WARN L181 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2019-01-14 03:49:47,666 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:49:47,666 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:49:47,666 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:49:47,666 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:49:47,666 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 03:49:47,668 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:49:47,668 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:49:47,668 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:49:47,668 INFO L131 ssoRankerPreferences]: Filename of dumped script: up_true-unreach-call_true-termination.i_Iteration2_Loop [2019-01-14 03:49:47,668 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:49:47,668 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:49:47,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:49:47,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:49:47,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:49:47,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:49:47,870 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:49:47,871 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-01-14 03:49:47,884 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:49:47,885 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:49:47,897 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:49:47,897 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5=0} Honda state: {ULTIMATE.start_main_#t~post5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2019-01-14 03:49:47,919 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:49:47,919 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 [2019-01-14 03:49:47,948 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 03:49:47,948 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:49:48,105 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-14 03:49:48,107 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:49:48,107 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:49:48,107 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:49:48,107 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:49:48,107 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 03:49:48,108 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:49:48,108 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:49:48,108 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:49:48,108 INFO L131 ssoRankerPreferences]: Filename of dumped script: up_true-unreach-call_true-termination.i_Iteration2_Loop [2019-01-14 03:49:48,108 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:49:48,108 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:49:48,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:49:48,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:49:48,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:49:48,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:49:48,628 WARN L181 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 16 [2019-01-14 03:49:48,685 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:49:48,685 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 03:49:48,686 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 03:49:48,687 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:49:48,687 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:49:48,687 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:49:48,687 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:49:48,687 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:49:48,689 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:49:48,689 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:49:48,704 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 03:49:48,719 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-14 03:49:48,720 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-01-14 03:49:48,720 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 03:49:48,720 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-14 03:49:48,720 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 03:49:48,721 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = 1*ULTIMATE.start_main_~k~0 Supporting invariants [] [2019-01-14 03:49:48,721 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-14 03:49:48,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:49:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:49:48,775 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:49:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:49:48,795 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:49:48,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 03:49:48,931 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-01-14 03:49:48,932 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 4 states. [2019-01-14 03:49:49,062 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 10 states and 13 transitions. Complement of second has 6 states. [2019-01-14 03:49:49,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-01-14 03:49:49,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-14 03:49:49,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2019-01-14 03:49:49,064 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2019-01-14 03:49:49,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:49:49,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2019-01-14 03:49:49,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:49:49,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2019-01-14 03:49:49,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:49:49,066 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2019-01-14 03:49:49,067 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 03:49:49,068 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2019-01-14 03:49:49,068 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-14 03:49:49,068 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-14 03:49:49,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-14 03:49:49,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 03:49:49,068 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 03:49:49,068 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 03:49:49,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 03:49:49,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 03:49:49,073 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2019-01-14 03:49:49,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 03:49:49,076 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-01-14 03:49:49,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-14 03:49:49,077 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-01-14 03:49:49,077 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 03:49:49,077 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 03:49:49,077 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-14 03:49:49,077 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-14 03:49:49,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-14 03:49:49,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 03:49:49,078 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 03:49:49,078 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 03:49:49,078 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 03:49:49,078 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-14 03:49:49,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-14 03:49:49,078 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 03:49:49,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-14 03:49:49,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 03:49:49 BoogieIcfgContainer [2019-01-14 03:49:49,086 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 03:49:49,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 03:49:49,087 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 03:49:49,087 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 03:49:49,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:49:45" (3/4) ... [2019-01-14 03:49:49,091 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-14 03:49:49,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 03:49:49,092 INFO L168 Benchmark]: Toolchain (without parser) took 4292.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 947.3 MB in the beginning and 956.8 MB in the end (delta: -9.5 MB). Peak memory consumption was 126.8 MB. Max. memory is 11.5 GB. [2019-01-14 03:49:49,094 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:49:49,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.10 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 935.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-01-14 03:49:49,095 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.09 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:49:49,096 INFO L168 Benchmark]: Boogie Preprocessor took 20.01 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:49:49,096 INFO L168 Benchmark]: RCFGBuilder took 337.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -176.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-01-14 03:49:49,097 INFO L168 Benchmark]: BuchiAutomizer took 3553.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.8 MB in the end (delta: 155.4 MB). Peak memory consumption was 155.4 MB. Max. memory is 11.5 GB. [2019-01-14 03:49:49,098 INFO L168 Benchmark]: Witness Printer took 4.73 ms. Allocated memory is still 1.2 GB. Free memory is still 956.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:49:49,106 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 341.10 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 935.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.09 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.01 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 337.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -176.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3553.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.8 MB in the end (delta: 155.4 MB). Peak memory consumption was 155.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.73 ms. Allocated memory is still 1.2 GB. Free memory is still 956.8 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. One deterministic module has affine ranking function k and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 13 SDslu, 6 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite118 ukn100 eq166 hnf92 smp77 dnf98 smp100 tf110 neg98 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...